[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.11"]
[Round "1.1"]
[White "Pinch, David"]
[Black "Parri, Deio"]
[Result "1/2-1/2"]
[ECO "E06"]
[WhiteElo "1842"]
[BlackElo "1659"]
[Annotator "kemen"]
[PlyCount "64"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,64,14,28,28,4,4,4,13,-23,-5,-5,8,11,15,-14,35,26,28,0,30,31,37,24,36,
3,5,-11,7,-17,-12,-26,-15,-36,-6,-21,11,9,10,1,-2,-4,8,-16,-35,-26,-9,-1,-10,
-18,4,-24,-4,-18,-18,0,42,7,45,-155,-125,-155,-120,-115,-57,-106,-114]} 1. d4
d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O c6 7. Bf4 (7. Qc2) (7. Nc3)
(7. b3 {Main lines, mostly will fianchetto the QB. Comments from David; except
those identified _R}) 7... b6 8. Nc3 Bb7 9. cxd5 {[Houdini W0.01 best Ne5 W0.
37] or Rc1.When black plays Bb7 the idea is to fix a pawn on d5 to reduce its
influence.} (9. Rc1) (9. Ne5 {main lines- keeping options open _R}) 9... exd5 {
[Houdini W0.44 best cxd5 W0.01]Taking with the c pawn seems preferable. [
taking e transposes to more games, & keeps a c5 plan alive. The text leaves
the Bl pawns more rigid _R]} 10. Rc1 Nbd7 11. a3 Re8 12. Bg5 $6 {[Houdini
level best e3 W0.34]White's pawns are on dark squares. The f4 B is always
susceptible to attack. White decides to swap it off. Perhaps 7.Bg5 is better?.
[Fianchetto for longer influence- the text is a N, moving a piece twice _R]} (
12. b4 {logical after the previous _R]}) (12. Re1) (12. Ne5 {are main choices_R
}) 12... Nf8 13. e3 h6 14. Bxf6 Bxf6 15. b4 {Trying to suppress ...c5.} Ne6 16.
Qb3 b5 17. a4 a6 (17... bxa4 {[Houdini level]. Komodo13 agrees _R} 18. Nxa4 a5
19. bxa5 Ba6 20. Nb6 Bxf1 21. Bxf1 Rxa5 22. Rxc6 Qb8 23. Qc3 Qa7 24. Nc8 Qa8
25. Nb6 Qa7) 18. Ra1 {[Houdini W0.39 best Ne5 W0.42]Trying to keep the tension
on the R file.} Qd6 19. Nd2 {E4 after preparation may be on the cards. The
preparation will need to be to protect the d-pawn, twice, so probably not
feasible yet. The N can also go to b3 to eye c5.} Be7 20. Rab1 {The R was
doing nothing on the a-file anyway.} Bf6 21. Na2 {[Houdini B0.10 best a5 W0.12]
Th N is finding its way to d3.Blocking the a file with a5 doesnt seem sensible.
} Bc8 22. Nc1 Bd7 23. Nd3 g6 {[Houdini W0.49 best Bxd4 B0.25]White thought
this was just a waiting move but black is regrouping to get activity in the
K-side.} (23... Bxd4 24. axb5 (24. exd4 Nxd4 25. Qa3 bxa4 26. Nf3 Ne2+ 27. Kh1
a5 28. Nc5 axb4 29. Qxb4 a3 30. Nxd7 Qxd7 31. Ra1 Qa7 32. Qd2 a2 33. Rfe1 Qxf2
34. Rf1 Qa7 35. Rfe1 Qf2 $11 {Komodo13-is one of the Engine type positions
that few humans, bar some top GMs might look at _R}) 24... Bf6 25. bxc6 Bxc6
26. Rfc1 Rab8 27. Nc5 Nxc5 28. bxc5 Qc7 29. Qd3 Rxb1 30. Rxb1 Bb5 31. Qa3 $11 {
Komodo13-It's 10 moves deep at least, with very obscure consequences _R}) 24.
Qc2 h5 25. Nb3 Ng5 26. Qc5 {[Houdini level best h4 W0.24]White tries to
exchange queens since without queens he is positionally better. Although black
has the two bishops in this closed position the Ns are better.} (26. h4 {
[Houdini W0.24].} Ne4 27. Rbc1 Qe7 28. Ndc5 Nxc5 29. Nxc5 Bf5 30. Qc3 g5 31.
hxg5 Bg7 32. axb5 axb5 33. Nd3 Qxg5 34. Ne5 Rac8 35. Ra1) (26. Rfc1 $14 {
Komodo13_R}) 26... Qe6 27. Nf4 Qf5 $6 {[Houdini W0.79 best Qe7 W0.22].} 28. h4
{White thinks that there is a tactical advantage, based on Bh3, but this is
badly miscalculated.} (28. Qc1 $16 {Komodo13- prepares the idea} Be7 29. axb5
axb5 30. h4 Ne6 31. Bh3 Qe4 32. Bxe6 (32. f3 {aiming at the Bl Q} Nxf4 33. fxe4
(33. gxf4 Qxb1 34. Qxb1 Bxh3 35. Rc1 Bxh4 36. e4 $11 {Komodo13}) 33... Ne2+ 34.
Kh2 Nxc1 35. Bxd7 Red8 36. Bxc6 Ra2+ {other moves appear to lose} 37. Kh3 Nd3
38. exd5 Nf2+ 39. Rxf2 Rxf2 40. Nc5 $14 {Komodo13- Wh has a powerful centre,
rather better than the exchange- good practical chances for a win. _R}) 32...
Bxe6 (32... fxe6 33. Nc5 Bxc5 34. Qxc5 e5 35. dxe5 Rxe5 36. Ra1 Rxa1 37. Rxa1
Be8 38. Qd6 Re7 39. Ra8 $16 {Komodo13-Bl looks in trouble}) 33. Qxc6 Bxb4 34.
Nc5 Bxc5 35. Qxc5 Rec8 36. Qxb5 $16 {a pawn & a much better N vs bad B_ R})
28... Ne4 29. Qc2 $2 (29. Qc1 {[Houdini W0.94].} g5 30. Bh3 g4 31. Bg2 Be7 32.
axb5 axb5 33. Bxe4 dxe4 34. Nc5 Bc8 35. Ra1 Rb8 36. Ra7 Bd6 37. Re1 Qh7 38. Qd1
Rd8 39. Qc2 (39. Qb3 $18 {Komodo13-R}) 39... Re8 40. Rea1 (40. Na6 $18 {
Komodo13 _R}) 40... Bf5 41. Qb3 (41. Nd7 Bxd7 42. Rxd7 Bxf4 43. gxf4 Qg6 44.
Raa7 Rf8 45. Kh2 $18 {Komodo13-R}) 41... Rbc8 42. R1a6 Bb8 43. Rb7 $16) 29...
Nxg3 $1 {[Houdini B1.32].} 30. Qxf5 $2 {[Houdini B1.42]Qc1 was still the best
move.} (30. Qc1 Qxf4 $1 (30... Nxf1 31. Bh3 Qxb1 32. Qxb1 Bxh3 33. Nxh3 bxa4
34. Kxf1 axb3 35. Qxb3 Bxh4 $19 {Komodo13- looks rather unclear _R}) 31. fxg3 (
31. exf4 Ne2+ 32. Kh2 Nxc1 33. Rbxc1 bxa4 34. Nc5 Bg4 35. Nxa4 Be2 36. Rh1 Bxh4
$19 {Komodo13- Bl has 2 Bs, 2 extra pawns & Wh's remaining pawns are all split
_R}) 31... Qd6 $19 {Komodo13} (31... Qxg3 32. Rxf6 Rxe3 33. Na5 Rae8 34. Rf2
Bf5 $19 {Komodo13- and the Wh K is in trouble _R})) 30... Nxf5 31. Nc5 Ra7 (
31... Bc8 $17 {Komodo13 _R}) 32. Bh3 (32. Ra1 Nxh4 (32... Bc8 33. axb5 cxb5 34.
Nxd5 Bxh4 35. Nb6 $11) 33. axb5 cxb5 34. Nxd5 Bd8 35. Bh1 Bc8 36. Nc3 Rc7 37.
Rfc1 Kg7 38. Nxa6 Bxa6 39. Rxa6 $14 {Komodo13 - indicating that Bl's Q side is
not easily defensible _R}) 32... Bc8 $17 {[Houdini B1.11]Black is a pawn up
and can at any time take the h4 pawn. His pieces are not particularly active
and he has pawn weaknesses. But he must be winning. However he offered a draw
which white gratefully accepted. It is the advantage of a higher rated player.}
1/2-1/2

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.11"]
[Round "1.2"]
[White "Philpin, Les"]
[Black "Di-Vetta, Andrew"]
[Result "0-1"]
[ECO "A47"]
[WhiteElo "1675"]
[BlackElo "1812"]
[Annotator "kemen"]
[PlyCount "94"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,94,14,23,28,28,77,49,34,31,41,26,43,46,46,25,43,27,5,9,9,9,9,15,14,
-15,-12,-9,-7,-46,-11,-10,13,-38,-38,-49,-30,-36,-28,-84,-23,-63,-56,-88,-88,
-101,-110,-116,-91,-149,-157,-192,-116,-123,-90,-336,-214,-242,-174,-192,-226,
-394,-127,-124,-123,-120,-117,-112,-110,-112,-116,-135,-91,-104,-78,-84,-78,
-78,-88,-70,17,-54,0,0,0,-77,-29,-194,-209,-455,-493,-493,-493,-506,-529,-525,
-615]} 1. d4 Nf6 2. Nf3 b6 3. Bf4 {the London System has a fashionable GM
clientele as well nowadays} Bb7 4. Nbd2 d6 (4... e6 {main, keeps pawn
structure on balaced colours}) 5. e3 g6 6. c3 (6. h3) 6... Bg7 7. Bb5+ {
induces obstructing the B, but Bl's pawn structure evens out.} (7. h3) (7. Bc4)
7... c6 8. Be2 Nbd7 9. h3 (9. Qb3 c5 10. a4 (10. Ng5 O-O 11. Rg1 (11. h4 cxd4
12. exd4 e5 13. Be3 Bxg2 14. Rh2 Bd5 15. c4 exd4 16. Bxd4 Bc6 17. h5 {
Krizan-Bozicevic, CRO ch tm 2010,1/2-1/2}) 11... h6 12. Nh3 e5 13. dxe5 dxe5
14. Bg3 Qe7 15. O-O-O Rfd8 16. f3 Rac8 17. Bf2 Nb8 18. g4 {Philpin-Orton,
Dyfed Open 2019,1-0}) 10... O-O 11. a5 cxd4 12. cxd4 Bd5 13. Bc4 Bxc4 14. Nxc4
bxa5 15. Nxa5 Qb6 {Cardelli-De Vita, Bratto op 2003,1/2-1/2}) (9. e4 $14 {
Komodo13}) 9... Nh5 10. Bh2 O-O 11. g4 (11. e4 $14) 11... Nhf6 12. Rg1 c5 13.
Qc2 d5 (13... cxd4 14. exd4 Rc8 $15 {Komodo13}) 14. Bd3 (14. O-O-O $14 {
Komodo13}) 14... c4 15. Be2 b5 16. a3 (16. h4 $5) 16... Nb6 17. Ne5 Nfd7 18. f4
(18. Nxd7 Qxd7 19. h4 $11 {Komodo13}) 18... f6 (18... Nxe5 19. fxe5 f6 $15 {
Komodo13}) 19. Nef3 Qe8 (19... e5 $15 {break open the centre, while the enemy
K is still there}) 20. f5 (20. g5 {using the R on g1} f5 (20... fxg5 21. Nxg5
$14) 21. h4 a5 22. h5 e6 23. Bg3 Bc6 24. Kf2 $11 {Komodo13- but Wh has an
easier game than Bl, who has to patiently await the Wh assault ( putting Bl
pieces into the Q side just takes them away from their K)}) 20... e5 21. dxe5 (
21. O-O-O) 21... fxe5 22. fxg6 Qxg6 (22... hxg6 23. O-O-O Nc5 $19 {as the Wh K
is now the unsafe one}) 23. Qxg6 hxg6 24. Ng5 Rae8 25. Bg3 Na4 26. O-O-O d4 {
the Bl pieces are far better co-ordinated than the Wh ones} 27. Nb1 d3 (27...
Ndc5 $19) 28. Bf1 Ndc5 29. Nd2 Bh6 30. Bh4 (30. h4 Bxg5 31. hxg5 Bf3 32. Nxf3
Rxf3 33. Kb1 e4 34. Re1 Nb3 {and the Wh pieces can scarcely move-Komodo13})
30... Ne6 (30... Bxg5 31. Bxg5 Rf2 $19) 31. Nxe6 Rxe6 32. g5 Bg7 33. Bg2 Bxg2
34. Rxg2 e4 $17 35. Rf1 Rxf1+ 36. Nxf1 Nc5 (36... Nxc3 37. bxc3 Bxc3 {and Bl
pawns will advance inexorably-Komodo13}) 37. Nd2 Re5 38. Rg4 Kf7 39. Bg3 Re6 {
giving Wh one chance to escape the worst} (39... Rf5 $19 {Komodo13} 40. Nxe4 $2
Rf1+ 41. Be1 (41. Kd2 Nb3#) 41... Rxe1+ 42. Kd2 Re2+ 43. Kc1 Nb3+ 44. Kd1 (44.
Kb1 Re1+ 45. Ka2 Ra1#) 44... Rxb2 $19) 40. h4 (40. Bb8 $1 {[%eval 0,0]
Komodo13- activating the} a6 41. Ba7 Re5 (41... Nb3+ 42. Nxb3 cxb3 43. Kd2 $11)
42. Bxc5 Rxc5 43. Nxe4 Re5 44. Kd2 $11 {with a blockade}) 40... Ke7 41. Bb8 {
one move too late} a6 42. Kb1 (42. Ba7 {should still be tried though} Kd6 (
42... Nb3+ 43. Nxb3 cxb3 44. Bc5+ $11) 43. Bxc5+ Kxc5 44. Rxe4 (44. Nxe4+ Kd5
45. Nf2 Rxe3 $19) 44... Rxe4 45. Nxe4+ Kd5 46. Nd2 Bf8 47. a4 Bc5 48. axb5 axb5
49. Nf1 Ke6 50. b3 cxb3 51. Kb2 Kf5 52. Kxb3 Kg4 $17 {and the active Bl K & B
outrun the N}) 42... Nb3 43. Nxe4 Kd7 {the threat is Rxe4 & N fork- if the K
runs to a2, then the d pawn walks in} 44. Ba7 Rxe4 45. Rxe4 Nd2+ 46. Kc1 Nxe4
47. Bb8 Ke6 0-1

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.11"]
[Round "1.3"]
[White "Williams, Duncan"]
[Black "Vesz, Marcell"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "1793"]
[BlackElo "1561"]
[Annotator "kemen"]
[PlyCount "43"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,43,19,28,72,53,117,75,122,106,134,135,138,130,355,290,329,251,217,139,
185,201,201,182,192,192,192,207,194,191,224,260,251,260,260,264,230,221,532,
530,521,540,540,499,618,620]} 1. e4 c5 2. Nf3 d6 3. Bc4 (3. d4) (3. Bb5+ {
main lines}) 3... Bg4 {not a good idea} (3... Nf6) (3... e6) 4. Bxf7+ {34
people saw the flaw} (4. h3 {and 49 people missed it.}) 4... Kxf7 5. Ng5+ Ke8
6. Qxg4 $18 Nf6 (6... Qd7 {is a bit better}) 7. Qe6 Rg8 (7... Qd7 8. Qf7+ Kd8
9. Ne6+ Kc8 10. Nxf8 {is scarcely inspiring; though one player salvaged a draw
& another even managed a win. There were 6 wins....}) 8. O-O (8. Nxh7 Nbd7 9.
Ng5 $18 {Stockfish10}) (8. Nc3 Nc6 9. Nd5 Rh8 10. Nxf6+ (10. Nf7) 10... gxf6
11. Qf7+ Kd7 12. Qe6+ Ke8 13. Nf7 Nd4 14. Qc4 (14. Nxd8 Nxe6 15. Nxe6 $18)
14... b5 15. Qxd4 (15. Qd5 e6 16. Qh5 $18) 15... cxd4 16. Nxd8 Kxd8 17. d3 $18
{Ndugu-Mhodi, Wld ch U16, Durban 2014, 0-1 , on time it seems further down the
line.}) 8... h6 9. Nh7 (9. Qf7+ Kd7 10. e5 dxe5 11. Ne6 Qc8 12. f4 $18 {
Komodo13}) 9... Nbd7 10. Nc3 Rh8 11. Qf5 (11. Nb5 Qb6 12. Nxf6+ Nxf6 13. a4 $18
{Stockfish10}) 11... Ne5 12. Nxf6+ gxf6 13. f4 Nc6 14. Nd5 Nd4 15. Qh5+ Kd7 16.
c3 Nb5 17. Qf5+ (17. d4 {opens up the position against the K in the centre})
17... Kc6 18. b4 (18. d4) 18... Qd7 19. a4 Qxf5 (19... Nc7 20. b5+ {wins
evething} Nxb5 21. axb5+ Kxb5 22. Qxd7+ Kc4 23. Qa4+ Kd3 24. Rf3+ Ke2 25. Re3#)
20. axb5+ Kxb5 21. exf5 Kc4 22. Nb6+ 1-0

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.11"]
[Round "1.4"]
[White "Probert, Malcolm"]
[Black "Pe, Philip"]
[Result "0-1"]
[ECO "D79"]
[WhiteElo "1541"]
[BlackElo "1789"]
[Annotator "kemen"]
[PlyCount "68"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,68,19,29,23,4,-10,-10,24,21,14,-17,17,27,11,8,8,8,6,11,35,21,7,7,17,2,
27,9,42,32,145,137,137,92,172,147,156,135,186,158,167,70,96,30,26,42,42,-236,
-235,-295,-214,-192,-96,-117,-96,-99,-39,-40,-61,-195,-60,-323,-360,-415,-415,
-453,-452,-457,-457,-459,-377]} 1. Nf3 Nf6 2. g3 d5 3. Bg2 g6 4. O-O Bg7 5. c4
(5. d3 {main}) 5... c6 6. cxd5 (6. d4) 6... cxd5 7. d4 O-O 8. Nc3 Nc6 9. Bf4 (
9. Ne5 {main}) 9... Nh5 10. Bg5 (10. Be3) 10... h6 11. Be3 Nf6 12. h3 Qb6 $146
(12... Ne4 {Cloud Engines}) (12... Be6) 13. Qc1 Kh7 14. Ne5 (14. Rd1 $14 {
Komodo13}) 14... Rd8 $2 (14... Be6) 15. Nxf7 $18 Rf8 16. Nxh6 (16. Ne5 $18 {
simplest}) 16... Be6 (16... Nxd4 {creating confusion may be Bl's best bet} 17.
Qd2 e5 18. Ng4 Nxg4 19. Nxd5 Nxe3 20. Nxb6 Nxf1 21. Qa5 axb6 22. Qxa8 Nd2 23.
Rd1 Nxe2+ 24. Kh2 Nc4 25. b3 Na5 26. Rd2 Nd4 27. Qa7 $16 {Komodo13}) 17. Na4
Qd8 18. Nc5 Bc8 19. g4 {to rescue the N, but loosens K side} (19. Rd1) (19. Nd3
) 19... b6 20. Nd3 Bb7 (20... Qd6 21. Ne5 Nxe5 22. dxe5 Qxe5 23. f4 Qd6 24. f5
g5 25. Bxg5 Ne4 26. f6 Bxf6 27. Bxf6 Rxf6 28. Rxf6 Qxf6 29. Qe3 Rb8 (29... Qxh6
30. Bxe4+ dxe4 31. Qxe4+ Kg8 32. Qxa8) 30. Rd1 Be6 31. Bxe4+ dxe4 32. Qxe4+ Qg6
33. Nf5 $18 {Komodo13}) 21. g5 Ne4 22. Nf4 (22. Qe1 Bxd4 23. Ng4 Qd6 24. Rc1
Bg7 25. f4 $18 {Komodo13}) 22... Qd6 $11 23. Nxd5 $2 {a miscalculation} (23.
Bxe4 dxe4 24. d5 (24. Rd1) 24... Nd4 25. Bxd4 Bxd4 26. Qd2 Bc5 27. e3 Rxf4 28.
exf4 Rf8 $11 {Bl has chances against the K, & the 2Bs are equal to the R &N in
endings}) 23... Qxd5 $19 24. Rd1 (24. Qc2 Nxd4 25. Bxd4 Bxd4 $19 {the b7 B
joins in} 26. e3 Bc5 27. Rad1 Qe6 $19 (27... Qxg5 $19 {Komodo13})) 24... Bxh6 (
24... Nxd4 $19 {Komodo13}) 25. gxh6 Qf5 26. Qc2 Na5 27. d5 Nf6 28. Qxf5 gxf5
29. d6 (29. Rac1 Rac8 $17) 29... Bxg2 (29... Rg8 $1 $19) 30. dxe7 (30. Kxg2 Nc4
31. dxe7 Nxe3+ 32. fxe3 Rg8+ 33. Kf3 Rae8 $19 {Komodo13}) 30... Rg8 31. Rd8
Bc6+ 32. Kf1 Raxd8 33. exd8=Q Rxd8 34. Rc1 Nc4 (34... Nd5) 0-1

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.11"]
[Round "1.5"]
[White "Miga, Tomasz"]
[Black "James, Lucas"]
[Result "1/2-1/2"]
[ECO "D79"]
[WhiteElo "1759"]
[BlackElo "1515"]
[Annotator "kemen"]
[PlyCount "156"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,156,26,26,26,24,40,24,24,29,9,17,4,6,15,11,11,11,15,0,38,20,20,-7,-11,
-14,-16,-63,29,40,59,42,64,50,52,19,232,6,47,-53,-39,-61,-75,-75,-91,-77,-68,
-98,-85,-88,-92,-92,11,-41,-15,-21,-23,-31,-17,-36,65,76,67,68,66,80,86,34,84,
90,92,92,92,88,85,77,73,77,70,77,70,76,90,96,96,96,94,94,96,94,93,96,96,94,93,
104,96,96,104,104,103,59,39,27,19,24,27,19,27,17,20,0,20,2,2,-36,85,81,77,3,0,
0,0,0,0,-66,0,0,0,0,0,0,0,0,0,0,8,7,7,3,3,3,4,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]
} 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 d5 5. O-O O-O 6. c4 c6 {a
Schlechter-Grunfeld} 7. cxd5 cxd5 8. Nc3 Nc6 9. Ne5 {main} (9. Bf4 {was played
on the next board up- Probert-Pe, West Wales Major rd1 2019,0-1}) 9... e6 10.
Nxc6 bxc6 11. Qa4 (11. Na4) (11. Bf4 {main lines}) 11... Bd7 (11... Qb6 {
1 Wh win, 2 draws, 2 Bl wins}) 12. Qa3 Qb6 (12... Re8 13. Bf4 Bf8 14. Bd6 Bxd6
15. Qxd6 Qe7 16. Qxe7 Rxe7 17. Na4 Be8 18. Rac1 {Sorensen-Tsalicoglou, Wld ch
Seniors , Kamena Vourla 2012,1-0}) 13. Rd1 Rfb8 (13... Rab8 14. Na4 Qa5 15. Bf4
Rb7 16. Rab1 Rc8 17. b3 c5 18. dxc5 Bxa4 19. Qxa4 Rxc5 20. Bd6 Qxa4 21. bxa4
Rxb1 22. Rxb1 Rc8 23. Rb8 Rxb8 24. Bxb8 a6 {Marton-Elo, HUN ch tm 1994,0-1}) (
13... Rfc8 14. Na4 Qa6 15. Nc5 Qxe2 16. Bg5 Be8 17. Bf3 Qb5 18. Rd3 Nd7 19. Rb3
Qc4 20. Rb4 Qc2 21. Nxd7 Bxd7 22. Rb7 Be8 23. Rc1 Qf5 24. h4 Bxd4 {
Quiroga-Amura, Clarin GP op, Potrero de los Funes, 1995,0-1}) (13... e5 $15 {
Cloud Engines}) 14. Na4 Qa6 15. Bf4 Bf8 (15... Rb7 {Cloud Engines} 16. Nc5 Qxa3
17. bxa3 Rb2 $14) 16. Nc5 (16. Qf3 $16 {Deep Fritz13 & Komodo13}) 16... Qxa3
17. bxa3 Rb2 (17... Rb5 {both Engines} 18. Rab1 (18. Be5 Bxc5) 18... Bxc5 19.
Rxb5 cxb5 20. dxc5 Bc6 $11) 18. Bf3 (18. Be5 $18 {both Engines} Bxc5 19. dxc5 {
attacks R on b2 as well}) 18... Bc8 (18... Bxc5) 19. Nb3 (19. Rdc1) 19... Ba6
$17 20. Bc1 Rc2 21. Rd2 Rxd2 22. Nxd2 Rb8 (22... Nd7 23. Nb3 Bb5 24. Na5 Rc8
$17 {Komodo13}) 23. Kf1 c5 (23... e5 $17 {both Engines}) 24. dxc5 Bxc5 25. Nb3
Nd7 (25... Bd6 $17 {Komodo13}) (25... Bf8 $17 {Deep Fritz13- best to keep the
2 Bs on, rather than cede them}) 26. Bf4 (26. Nxc5 Nxc5 27. Be3 $11) 26... Rb5
(26... Rc8) 27. a4 Rb4 28. Rc1 Rc4 29. Rxc4 dxc4 (29... Bxc4 $15) 30. Nxc5 Nxc5
31. Bc6 (31. a5 $16 {both Engines}) 31... Bb7 32. Bxb7 Nxb7 33. Ke1 (33. Be3
$16 {with pawns on both sides of the board a B is usually better than the N,
unless its own pawns make it bad or baddish}) 33... Kf8 34. Kd2 Ke7 35. Kc3 Nd6
36. Kd4 (36. Be3 {creating an entry on b6 for later} a6 37. Bc5 Kd7 38. Bxd6
Kxd6 39. Kxc4 $18 {the extra half-pawn can be used for tempi to drive Bl to
zugzwang} Kc6 40. h4 (40. a5 {eg} Kd6 41. h4 e5 42. g4 f6 43. g5 f5 44. e3 Kc6
45. f4 Kd6 46. a3 e4 47. Kd4 $18) 40... f6 41. a5 $18 {transposes}) 36... f6 (
36... c3 {both Engines} 37. Kd3 Kd7 38. f3 Nb7 39. Kxc3 Kc6 40. Kc4 f6 $16 {
Komodo13}) 37. Kc5 (37. Bxd6+ Kxd6 38. Kxc4 $18) 37... e5 38. Be3 c3 39. Kb4 c2
40. Kc3 Nf5 41. Bc5+ Ke6 42. Kxc2 a6 43. e4 (43. Kc3) 43... Nd6 44. f3 (44.
Bxd6 Kxd6 45. Kd3 Kc5 46. Kc3 $11 {the Bl K has gained an extra square
comparec with the above variations}) 44... f5 $6 {but this creates an
imbalance of pawns that could help Wh} (44... h5) 45. Kd3 (45. Bxd6 {comes
close to winning} Kxd6 46. exf5 gxf5 47. Kd3 Kd5 (47... Kc5 48. g4 fxg4 49.
fxg4 $18 {and Wh has gained an outside passed pawn threat} Kd5 50. a5 {so that
when the Wh K captures on a6 it can get to b7 next- a crucial difference to
the lines analysed below for other Bl K moves.}) (47... h5 48. a5 {K & P
endings can be very tricky to calculate- a single slip can become a disaster.}
(48. h3 a5 49. g4 e4+ 50. Ke3 hxg4 51. hxg4 fxg4 52. fxg4 Kd5 53. g5 Ke5 54. g6
Kf6 55. Kxe4 Kxg6 56. Kd4 Kf6 57. Kc5 Ke7 58. Kb5 Kd7 59. Kxa5 Kc7 {is only
good enough for a draw}) 48... Ke7 49. Kc4 Kd6 50. h3 Kc6 51. g4 hxg4 52. hxg4
e4 {draws}) 48. g4 fxg4 49. fxg4 a5 {and despite the outside passed pawn, Bl
still holds the draw} 50. h4 e4+ 51. Ke3 Ke5 52. a3 Kd5 53. g5 Ke5 54. h5 Kf5
55. g6 hxg6 56. h6 Kf6 57. Kxe4 g5 58. h7 Kg7 59. Kf5 Kxh7 60. Kxg5 Kg7 {
Bl always gets back in time to c8 & safety against a a pawn (or two)}) 45...
fxe4+ 46. fxe4 g5 47. g4 Ne8 48. Be3 Nf6 49. h3 h6 50. Bc5 h5 $11 {liquidating
most of the K side} 51. gxh5 (51. Be3 hxg4 52. hxg4 Nxg4 53. Bxg5 {makes
little difference} Nf2+ 54. Ke3 Nd1+ 55. Kf3 Nb2 56. a5 Nc4 57. Bd8 Kd6 58. Bb6
Kc6 59. Ke2 Kb5 $11 {Komodo13}) 51... Nxh5 52. Ke3 Nf4 53. Kf3 Nxh3 54. Kg4 Nf4
55. Kxg5 Nd3 56. Bb6 Nb2 57. a5 (57. Bc5 Nxa4 58. Bb4 $11) 57... Nd3 (57... Nc4
58. Kg4 Nd2 59. Be3 Nxe4 $15 {both Engines}) 58. Kg4 Nb4 59. a4 Nd3 60. Kf3 Nb2
61. Ke3 Nxa4 62. Ba7 Nc3 63. Kd3 Nb5 64. Bc5 Nd6 65. Bb4 (65. Bxd6 Kxd6 66. Kc4
Kc6 67. Kb4 Kd6 $11) 65... Kd7 66. Ke3 Ke6 67. Kf3 Kd7 68. Bxd6 Kxd6 69. Kg4
Kc5 {other moves lose} 70. Kg5 Kb5 71. Kf5 Kxa5 72. Kxe5 Kb4 73. Kd5 a5 74. e5
a4 75. e6 a3 76. e7 a2 77. e8=Q a1=Q 78. Qe4+ Kb3 1/2-1/2

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.11"]
[Round "1.6"]
[White "Chung, Daniel"]
[Black "Jones, Martin C"]
[Result "1/2-1/2"]
[ECO "D38"]
[WhiteElo "1434"]
[BlackElo "1746"]
[Annotator "kemen"]
[PlyCount "86"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,86,39,31,24,-36,-10,-11,21,33,32,11,11,7,8,-1,28,32,36,34,77,78,74,51,
75,15,93,114,134,147,153,151,151,97,124,132,140,133,140,139,116,141,179,177,
200,167,180,172,181,188,166,189,190,168,235,47,231,224,261,180,166,185,186,204,
211,211,211,93,93,121,197,0,0,0,84,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2.
c4 e6 3. Nc3 Bb4 4. Nf3 d5 (4... b6) (4... c5) 5. Bg5 {now a Ragozin var of
the Queen's Gambit} O-O (5... h6) 6. cxd5 (6. e3) 6... exd5 7. Qb3 Bxc3+ {
56% for Wh} (7... Nc6 8. e3 {90% for Wh eg AH Williams- F May, Dyfed Open 2015,
1-0}) (7... c5 $1 {27% for Wh}) 8. bxc3 b6 (8... c6) (8... Nbd7 {main lines})
9. Bxf6 Qxf6 (9... gxf6 {Cloud Engines} 10. e3 $14 Bf5 {2 Wh wins, 2 draws, 1
Bl win} (10... Be6 11. Bd3 f5 12. Qc2 Qf6 13. Ne5 Kh8 14. f4 $14 {Vieira dos
Santos-Dutra, Rio Claro op 2014,0-1})) 10. Qxd5 $16 c6 (10... Ba6 11. e4 (11.
Qxa8 Nc6 12. Qxf8+ Kxf8 $11) 11... Bxf1 12. Kxf1 Nc6 $16 {Deep Fritz14}) (10...
Nc6 11. e3 $16 {Komodo13}) 11. Qb3 (11. Qg5 $16) 11... Bg4 12. h3 (12. Ne5)
12... Bh5 (12... Bxf3 {gives a bit of inbalance, so Bl should probably try
this, rather than just being a pawn down} 13. gxf3 Re8 14. Bg2 Nd7 15. e3 Qh4
16. Kf1 $16 {Komodo13- looks like Bl has full compensation for the pawn, given
Wh's awkward K side placement; but then Engines are remorseless defenders} (16.
O-O Re6 17. f4 Rg6 18. Qc2 $16 {looks a far more sensible Wh choice})) 13. Ne5
Qd6 14. g4 Bg6 15. Bg2 $18 Nd7 16. Nxg6 (16. Bxc6 $1 Nxe5 17. Bxa8 Rxa8 18.
dxe5 Qxe5 19. Qc4 Re8 20. O-O-O $18 {Komodo13}) (16. Nxd7 Qxd7 17. f4 h5 18. f5
Bh7 19. O-O-O $18 {Komodo13}) (16. Nxc6 Rae8 17. Qd5 Qc7 18. O-O $16 {Komodo13}
) 16... hxg6 (16... Qxg6 $5) 17. O-O Rac8 18. Rad1 Rfe8 19. e4 Qe7 20. f4 $18 {
the Wh centre should drive through} Kh8 21. e5 (21. f5) 21... Nf8 22. Qa4 (22.
c4 $18 {keep adding to the pressure}) 22... b5 23. Qb4 {the Q is best kept as
an attacker once the Wh pawns have chased enemy pieces to inferior squares} Qc7
24. c4 (24. Qb2 Kg8 25. f5 $18 {Komodo13}) 24... a5 25. Qb3 Rb8 26. Rc1 (26. c5
a4 27. Qf3 Rbc8 28. f5 $18 {Komodo13}) 26... Ne6 27. d5 (27. Qe3 $18) 27... Nd4
(27... bxc4 28. Qxc4 Qa7+ 29. Kh1 cxd5 30. Qxd5 Rb4 31. f5 Nf4 $11 {Komodo13-a
lot of the centre has dissolved & Bl has gained some piece activity}) 28. Qd3 (
28. Qe3) 28... c5 29. d6 (29. cxb5 {breaks up the Bl Q side pawns} Nxb5 30. a4
Qa7 (30... Nd4 $2 31. Qxd4 $18) 31. Qc4 Nd4 32. Qxc5 $18 {Komodo13}) 29... Qd7
30. cxb5 Rxb5 31. Rb1 (31. Bd5) 31... Reb8 32. Rxb5 Rxb5 33. Rb1 $6 {this
allows a tactic, but is also not best strategically either} (33. Bd5 $18 {
Komodo13-best to keep one R in reserve to attack the K once further pawn
advances have opened it up.}) (33. Rf2) 33... c4 $1 $11 34. Qe4 (34. Qxd4 Rxb1+
35. Kh2 Kh7 36. Kg3 (36. Qxc4 Qa7 $19) (36. Be4 Rb4 37. a3 Rb3 38. f5 $11)
36... c3 37. Qxc3 Qb5 38. Qd4 $11 {Komodo13}) 34... c3 {the Engine spots
another inaccuracy} (34... Rxb1+ 35. Qxb1 c3 36. Be4 Qa4 37. Qe1 c2 38. Qh4+
Kg8 39. Qd8+ Kh7 40. Qh4+ $11) 35. Rxb5 (35. Rc1 $18 Qa7 36. Kh2 c2 37. f5 {
Komodo13- keeping the R & continuing the pawn advance}) 35... Qxb5 36. Qxd4 c2
$11 37. d7 c1=Q+ 38. Kh2 Qxd7 {no 4 Qs today} 39. Qxd7 Qxf4+ 40. Kh1 Qc1+ 41.
Kh2 Qf4+ 42. Kg1 Qe3+ 43. Kf1 Qf4+ 1/2-1/2

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.11"]
[Round "1.7"]
[White "Horrell, Stephen"]
[Black "Wells, Thomas"]
[Result "1/2-1/2"]
[ECO "C02"]
[WhiteElo "1696"]
[Annotator "kemen"]
[PlyCount "119"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,119,80,47,52,27,29,10,10,-12,2,7,-1,-22,0,0,0,-24,-23,-7,-1,-1,-5,-1,
100,113,245,255,269,262,244,225,228,241,322,345,465,443,488,467,461,376,380,
332,399,352,363,88,426,-65,-42,-58,-57,-150,-32,-29,20,-164,-158,-155,-164,
-168,-152,-153,-108,-69,-126,-139,-137,-140,-134,-137,-137,-137,-132,-134,-90,
-92,-138,-132,-93,-122,-109,-163,-137,-154,-169,-168,-151,-171,-154,-167,-107,
-77,-90,-76,-91,-97,-53,-54,-26,-32,-18,-18,25,47,60,72,17,9,0,0,0,0,0,0,108,0,
0,0,0,0]} 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be2 (6. a3 {main})
6... cxd4 7. cxd4 Nge7 8. Na3 Nf5 9. Nc2 Be7 (9... Bb4+) 10. O-O O-O 11. Bd3 (
11. b3) 11... Qc7 $146 (11... Bd7) (11... f6) 12. g4 Nh4 {entraps his own B} (
12... Nh6 13. h3 $16) 13. Nxh4 Bxh4 14. g5 $18 Ne7 15. Qh5 (15. Qg4 Ng6 16. Ne1
Qb6 17. Nf3 $18 {Komodo13}) 15... Ng6 16. Ne1 f5 17. gxf6 (17. Ng2 $18) (17.
Nf3 $18) 17... Bxf6 (17... gxf6 18. Bxg6 hxg6 19. Qxh4 $18) (17... Qf7 18. Nf3
$18 (18. fxg7 Qxg7 19. Kh1 Bxf2 (19... Rxf2 20. Rg1 $18) 20. Bh6 Nf4 21. Bxg7
Nxh5 22. Bxf8 Bxd4 23. Bh6 $18 {Komodo13})) 18. exf6 Rxf6 19. Bg5 (19. Nf3)
19... Rf8 20. Bxg6 (20. Rc1) (20. Nf3) (20. Be3) 20... hxg6 21. Qxg6 Bd7 22.
Rc1 (22. Nd3) 22... Qd6 23. Nd3 (23. Bh6) 23... Rf5 (23... Be8 {Komodo13} 24.
Bf4 Bxg6 25. Bxd6 Bxd3 26. Bxf8 Bxf1 27. Bd6 Bc4 28. b3 Bb5 29. Rc7 Rd8 30.
Rxb7 Rxd6 31. Rxb5 Rd7 32. h4 $16) 24. Ne5 (24. Bh6 Qe7 25. Rc7 $18) (24. Be3
Be8 25. Qg3 $18) (24. Qh5 Bb5 25. Rfd1 $18) 24... Be8 25. Qxf5 (25. Be7 Qxe7
26. Qg3 Rg5 27. Ng4 Bh5 28. h3 $11 {Komodo13}) 25... exf5 $17 26. Rc3 (26. Rfd1
) 26... Bd7 (26... Qb6 $19 {Komodo13}) 27. Rfc1 f4 (27... Re8) 28. Nxd7 Qxd7
29. Bxf4 Qg4+ 30. Bg3 Qxd4 (30... Re8) 31. Re1 Rd8 (31... a5 32. Re7 Ra6 33.
Rcc7 b5 $19 {Komodo13}) 32. Re7 Qg4 33. Rcc7 d4 34. Kf1 d3 35. Rxg7+ Qxg7 36.
Rxg7+ Kxg7 37. Ke1 Kg6 $19 {but still has to find a way in for the K} 38. Kd2
Kf5 39. f3 Rd4 40. a3 a5 41. Bf2 Rd7 42. Be3 a4 43. h4 Ke6 44. h5 Rd5 45. h6
Rb5 46. Bd4 Rh5 47. Bg7 Kf5 48. Kxd3 Kf4 {Bl needs to rely on mating threats
while the Wh B is out on a limb} 49. Kc4 Kxf3 50. Kb4 b5 51. Bf8 (51. b3 {
Wh needs to get rid of the Bl pawns} axb3 52. Kxb3 Rh4 {this position is drawn,
Lomosov tablebases} 53. Bf8 (53. h7 {requires a bit more caculation} Rxh7 54.
Bf8 Rh4 55. Bb4 Re4 56. Kc2 $11 (56. a4 $2 Re3+ 57. Kb2 bxa4 $19)) 53... Ke2
54. Kc3 $11 (54. Bc5 Rxh6 (54... Kd2) 55. Kb4 $11)) 51... Rh2 (51... Ke3 52.
Bg7 Kd3 53. Bf8 Kc2 54. Bg7 $11) 52. Kxb5 Rxb2+ 53. Kxa4 Ke4 54. Bg7 {Wh may
as well play on a little, as it is unlikely he will be mated} Rh2 (54... Rb7
55. h7 {would even lose for Bl}) 55. Kb4 Kd5 56. Kb5 Kd6 57. a4 Rh3 58. Bf8+
Kc7 59. a5 Kb8 60. a6 {the B is the wrong colour, so Bl can just end it by
playing R Xh pawn.} 1/2-1/2

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.12"]
[Round "2.1"]
[White "Di-Vetta, Andrew"]
[Black "Williams, Duncan"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "1812"]
[BlackElo "1793"]
[Annotator "kemen"]
[PlyCount "97"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,97,19,15,15,-22,-13,-22,-9,-24,4,11,13,0,8,3,-3,-2,21,-8,8,-52,-16,
-59,-7,-40,-34,-53,-60,-59,-19,-38,-20,-9,-6,-13,-21,-34,-19,-55,-55,-53,-46,
-40,-14,-51,-65,-67,-62,-66,-66,-55,-34,-38,-7,-16,0,-31,-28,-19,-15,-17,-20,
-24,-23,-25,-23,-127,-23,-143,0,-114,-109,-129,0,0,91,89,65,85,93,149,243,153,
286,416,308,308,299,208,492,558,558,558,1117,388,1227,533,1270,523]} 1. Nf3 Nf6
2. b3 d5 3. Bb2 e6 4. g3 c5 5. Bg2 Be7 6. O-O Nc6 7. d3 O-O 8. Nbd2 Qc7 9. Qc1
{a rare move} (9. e4) (9. c4) (9. Re1) 9... b6 (9... e5 $15 {Komodo13} 10. e3
h6 11. h3 b6 12. Nh2 Bb7 13. a4 Rfe8 14. Qd1 Rad8 15. Ng4 Nxg4 16. Qxg4 Bc8 17.
Qd1 Bf8 18. Kh2 e4 19. dxe4 dxe4 20. Qe2 f5 {Tovazzi-Weinberg, Arco op 2009,0-1
}) 10. Ng5 Ng4 (10... h6) 11. Nh3 Bf6 12. Bxf6 Nxf6 13. e3 e5 $15 14. f4 Ng4 (
14... Re8) (14... Bxh3 15. Bxh3 exf4 16. gxf4 Rfe8 17. Rf3 Rad8 $17 {Komodo13-
the Wh centre needs attention}) 15. Re1 Ne7 (15... d4 16. exd4 exd4 17. Bf3 Ne3
$17 {Komodo13}) 16. c4 (16. fxe5 $11) 16... Bb7 17. Qd1 Qd7 18. Qe2 Rfe8 19.
Nf2 Nxf2 20. Qxf2 exf4 (20... Nc6) 21. exf4 d4 (21... Rad8 {best leave things
more fluid in the centre now- Komodo13}) 22. Be4 (22. Ne4 $11) 22... Nf5 23.
Qf3 (23. Bxb7 Qxb7 24. Nf1 Qc6 25. Rxe8+ Rxe8 26. Re1 h5 $11 {Komodo13}) 23...
Bxe4 24. Rxe4 Ne3 25. Re1 f5 26. Rxe8+ Rxe8 27. Nf1 Nxf1 28. Kxf1 Rxe1+ 29.
Kxe1 Qe6+ 30. Kf2 $11 a5 31. Kg2 h6 32. Kh3 Kh7 33. Qb7 $2 {this should
backfire} (33. Qd5 $11) (33. Kg2 $11) 33... Kg6 (33... Qe2 $19 34. Qc8 (34.
Qxb6 g5 {mating, though winning the Q first} 35. fxg5 hxg5 36. Qc6 Qf1+ 37. Qg2
g4+ 38. Kh4 Qxg2 39. Kg5 Qf3) 34... Qf1+ 35. Kh4 Qxd3 $19 {Komodo13}) 34. a4
Kh7 (34... Qe2 $19 35. Qxb6+ Kh5 36. Qb7 Qxd3 $19 {Komodo13}) 35. Qb8 (35. Qd5
$11 Qe2 36. Qxf5+ Kh8 37. Qg6 Kg8 38. Qxb6 Qh5+ 39. Kg2 Qe2+ {perpetual}) 35...
Kg6 $19 (35... Qe2 $19) 36. Qd8 Kh7 (36... Qe2 $1) 37. Qd5 $11 Qxd5 $2 (37...
Qg6 $11) (37... Qe2 $11) 38. cxd5 $18 Kg6 (38... Kg8 39. Kh4 g6 40. g4 $18) 39.
Kh4 Kf6 40. Kh5 Ke7 41. Kg6 b5 42. axb5 a4 43. bxa4 (43. b6 $18) 43... c4 44.
a5 (44. b6 c3 45. b7 c2 46. b8=Q c1=Q 47. a5 $18 {Komodo13}) 44... Kd7 (44...
cxd3 45. a6 d2 46. a7 d1=Q 47. a8=Q $18 {the Wh K is safe & the Wh pawns are
much more threatening than Bl's d pawn}) 45. a6 cxd3 (45... Kc7 46. d6+) 46. a7
d2 47. a8=Q d1=Q 48. Qc6+ Kd8 49. Qd6+ (49. d6 Qg4+ 50. Kf7 Qh5+ 51. Kf8 {
is quickest- Komodo13}) 1-0

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.12"]
[Round "2.2"]
[White "Pe, Philip"]
[Black "Pinch, David"]
[Result "0-1"]
[ECO "A01"]
[WhiteElo "1789"]
[BlackElo "1842"]
[Annotator "kemen"]
[PlyCount "78"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,78,19,-40,0,-22,12,-32,-32,-17,-11,-11,-10,-74,-48,-53,-50,-53,-27,
-40,-16,-15,-14,-7,-3,-3,-15,-9,-9,-19,14,7,15,24,33,4,-17,-31,29,13,-42,-54,
81,75,182,174,254,-448,-448,-450,-490,-493,-481,-513,-499,-521,-476,-487,-467,
-460,-482,-480,-465,-480,-466,-583,-622,-1042,-448,-1101,-722,-771,-899,-1072,
-1136,-1142,-1162,-1162,-1161,-29983,-29984]} 1. b3 Nf6 2. Bb2 g6 3. g3 (3.
Bxf6 {main, notes by David unless _R}) 3... Bg7 4. Bg2 d6 {I dislike these
type of openings. It is difficult to decide how to set up the centre.} (4...
O-O {main, delays the decision_R}) 5. c4 c5 6. d4 (6. e3) (6. Nf3 {main _R})
6... cxd4 {An opportunity for the gain of a tempo.} 7. Bxd4 Nc6 8. Bc3 $146 {
gets in the way of the best square for the QN _R} (8. Bb2 {2-1 _R}) 8... O-O 9.
Nf3 Qc7 10. O-O {The engines score black not worse.} Rd8 11. Nbd2 d5 12. cxd5
Nxd5 13. Bxg7 Kxg7 14. Qc2 {[Houdini level best Qc1 B0.04].} Ncb4 {Offering a
Q swap where black will be more comfortable.} 15. Qe4 (15. Qxc7 {[Houdini W0.
14].} Nxc7 16. Rfc1 Nc6 17. Nc4 Ne6 18. Rd1 f6 19. Rxd8 Nexd8 20. Rd1 Be6 21.
Ne3 Rc8 22. Nd4 Nxd4 23. Rxd4 Rc1+ 24. Rd1 $11) 15... Nc6 {A check on the dark
squares may give tactical opportunities, so black decides to become more solid
and try to take advantage of white's exposed queen.} 16. Rac1 Nf6 17. Qh4 {
Not the best position for the queen. Retreating along the white diagonal was
better.} Qa5 $1 {[Houdini B0.44]Breaking the pin.} 18. Rc2 Rd5 $6 {[Houdini
level best Bf5 B0.49]Bf5 was rejected due to 19.e4.Houdini then gives Be6 but
why give white the free tempo? Black would like to develop the bishop but
cannot decide which is the best square. But it already has an influence
without moving. The rook move is risky due to a discovery from the g2 bishop
but white has no good squares yet for the knight. The idea is to continue
hassling the queen.} (18... Bf5 19. e4 Be6 $15 {Komodo13- the pawn on e4
blocks in the B & ends its influence towards the Q side.- it may even get to
be a bad B in some lines of play _R}) 19. Qf4 e5 $6 {This looked like it was
the right move, so, without much analysis black gave it a go! Houdini
recommends h6 but that is boring!.} (19... g5 20. Qe3 Ng4 21. Qc3+ Qxc3 22.
Rxc3 h6 $11 {Komodo13 _R}) 20. Nxe5 $5 Nxe5 $2 {[Houdini W0.93 best Rxe5 B0.35]
It was too complicated for black to sort out. And white's next was missed.} (
20... Rxe5 {[Houdini B0.01].} 21. Nc4 Qc5 22. Bxc6 Rf5 23. Qc7 Nd5 (23... Qxc6
24. Nd6 (24. Qxc6 bxc6 $19) 24... Qxc7 25. Rxc7 Bd7 26. Nxf5+ Bxf5 27. f3 Nd5
28. Rc5 Ne3 29. Rfc1 Re8 $15 {Komodo13 _R}) 24. Qd8 Qxc6 25. e4 Nf4 26. Qd4+
Qf6 27. Qxf6+ Rxf6 28. gxf4 Rxf4 29. Re1 Bh3 30. Re3 Rg4+ 31. Rg3 Rd8 32. Rd2
Rxd2 33. Nxd2 b5 $11) 21. b4 $1 Qb5 (21... Qa4 {[Houdini W0.94].} 22. Rxc8 Rxc8
23. Bxd5 Re8 24. Bb3 Qa6 25. Ne4 Nxe4 26. Qxe4 Re7 27. Qd4 Qf6 28. Qxa7 Nc6 29.
Qb6 Qd4 30. Qxd4+ Nxd4 31. Bc4 Nxe2+ 32. Kg2 Re4 33. Bd3 Re7 34. a3 Nd4 35. Rd1
Rd7 36. Be2 Rd6 37. Rd2 Kf6) 22. Bxd5 Qxe2 $2 {[Houdini W2.67 best Qxd5 W1.98]
Neither player saw 23.Qxf6+!.} (22... Qxd5 {[Houdini W1.89].} 23. Rc5 Qxa2 {
after} 24. Rxe5 {or} (24. Ra5 {Wh is winning- Komodo13 _R})) 23. Ne4 $2 (23.
Qxf6+ {[Houdini W2.80].} Kxf6 24. Ne4+ Qxe4 25. Bxe4) 23... Nf3+ {When all
else fails, try a check! And besides 24.Kg2 Bh3+! 25.Kxh3 Qxf1 is mate!.} (
23... Nxd5 24. Qxe5+ f6 25. Rc7+) (23... Qxc2 24. Qxf6+ Kg8 25. Qxe5 Be6 26.
Bxe6) 24. Qxf3 {White is forced to prevent the mate. To be fair he saw the
mate much quicker than black did!.} (24. Kg2 Bh3+ 25. Kxh3 Qxf1#) 24... Qxf3
25. Nxf6 Qxf6 26. Rfc1 Be6 {Black decides that the activity of the pieces is
worth more than the pawn.} 27. Bxb7 Rd8 (27... Rb8 28. Bg2 Rxb4 $19 {Komodo13
_R}) 28. b5 Bd5 {Swapping off the pieces must be the best strategy.} (28... Bf5
29. Re2 Bd3 30. Rd2 Bxb5 31. Rxd8 Qxd8 $19 {removes a potential Wh asset of a
passed Q side pawn- Komodo13 _R}) 29. Bxd5 Rxd5 30. a4 Qd4 {...Qf3 is best,
followed a rook swap on d1.Besides it is better, as usual, for the rook to be
in front of the queen.} 31. Rc4 Qb2 {Threatening Rd2.Black is trying to find
best the best strategy.} 32. R1c2 Qb1+ 33. Rc1 Qf5 (33... Rd1+ {Komodo13 ends
things at once _R}) 34. R1c2 {White is trying to keep eveything protected, but
black can see a mating net.} Rd1+ (34... Qf3 35. Rc1 Rd1+ 36. Rxd1 Qxd1+ 37.
Kg2 Qd5+ {Komodo13 finishes rapidly _R}) 35. Kg2 Qd5+ 36. Kh3 (36. f3 Qd3 37.
g4 Rd2+ 38. Rxd2 Qxd2+ 39. Kh3 Qe3 40. Kg3 Qe1+ 41. Kg2 Qe2+ 42. Kg3 Qxc4 {
Komodo13 _R}) 36... Rg1 {Threatening 36...Qh5+ 37.Rh4 Qf5+ picking up the
other rook.} 37. Rc5 Qe6+ 38. Kh4 Rg2 (38... h5 {mate in 8, Komodo13 _R} 39. f3
Qf6+ 40. Rg5 Qxf3 41. Rc4 Qe2 {& the R sacs just delay the mate _R}) 39. h3 {
F3 prevents the immediate mate but loses the rook after Rxc2 and Qe4+.} Qf6+ {
White resigns. He was unlucky that his winning position was marred by the mate
threat on move 23.} (39... Qe4+ {Komodo13 is a little quicker _R}) 0-1

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.12"]
[Round "2.3"]
[White "Stuart, Neil"]
[Black "Miga, Tomasz"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "1660"]
[BlackElo "1759"]
[Annotator "kemen"]
[PlyCount "66"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

1. d4 d5 2. c4 e6 3. Nf3 Be7 4. Nc3 Nf6 5. Bg5 h6 6. Bxf6 (6. Bh4) 6... Bxf6 7.
e3 O-O 8. Qc2 (8. Rc1) 8... b6 (8... c5 {can be played, it is riskier against
Rc1}) 9. cxd5 (9. O-O-O {main}) 9... exd5 10. Bd3 Bb7 11. O-O Nd7 12. b4 {main}
Rc8 (12... c5 $14 {immediately is main, though 5 Wh wins & 1 draw}) (12... c6 {
3 Wh wins, 3 draws}) 13. Rab1 (13. b5 $16 {Komodo13}) (13. Qd2 Qe7 14. Rab1 Ba8
15. Ba6 Rcd8 16. Rfc1 Nb8 17. Bf1 Nc6 18. Na4 (18. Ne2 $16 {Komodo13}) 18... a5
19. bxa5 (19. b5 $16) 19... Nxa5 20. Qd1 $11 {Hermanns-Gheng, GER ch U12,
Magdeburg 2014,1-0}) 13... c6 14. Rfd1 Qc7 15. e4 (15. a4 $16) (15. Rbc1 $16)
15... dxe4 16. Nxe4 Rfe8 17. Qb3 (17. Re1 $14) (17. a3 $14) 17... Qf4 (17... c5
$15) 18. Nxf6+ Qxf6 19. Re1 c5 20. bxc5 (20. Rxe8+ Rxe8 21. Bb5 Rd8 (21... Qf5
22. Bxd7 Qxd7 23. dxc5 Re2 24. Rd1 Qf5 $11 {Komodo13}) 22. dxc5 bxc5 23. Rd1
Nf8 24. Rxd8 Qxd8 25. bxc5 $14 {Komodo13}) 20... Bxf3 21. gxf3 Qxd4 (21... bxc5
$17) (21... Qg5+ 22. Kh1 bxc5 $15) 22. cxb6 Rxe1+ 23. Rxe1 axb6 $15 24. Be4 (
24. Bf5 Rc3 25. Qd1 Qxd1 26. Rxd1 Nf8 27. Be4 $11 {Komodo13}) (24. Re7 Ne5 25.
Be4 Qc5 26. Rb7 Nc4 27. Rd7 Ne5 28. Rb7 $11 {repetition=Komodo13}) 24... Qf6
25. Qd5 Nc5 26. Rb1 Rd8 (26... g6 $17) 27. Qf5 Nxe4 28. Qxe4 (28. fxe4 Qc6 $17)
28... Rd4 $19 29. Qe8+ (29. Qa8+ Kh7 30. Re1 Qg6+ 31. Kf1 Qf5 32. Qb7 Rf4 33.
Kg1 Qh3 $19 {Komodo1`3}) 29... Kh7 30. Qb5 (30. Re1 Qxf3) 30... Qxf3 31. Qxb6 (
31. Qe5 Rf4 32. Rf1 Rg4+) 31... Rg4+ 32. Kf1 Qh1+ (32... Qd3+ 33. Ke1 Rg1#) 33.
Ke2 Re4+ {the K is too exposed & it will cost a Q or a R} (33... Re4+ 34. Kd2
Qf3 35. Re1 Qf4+ 36. Kd1 (36. Qe3) 36... Qg4+ 37. Kd2 Qd7+ 38. Kc3 Rxe1 39. Qb3
Re4 40. Kc2 Re2+ 41. Kc3 Rxf2) 0-1

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.12"]
[Round "2.4"]
[White "Jones, Martin C"]
[Black "Jones, Huw"]
[Result "1/2-1/2"]
[ECO "A58"]
[WhiteElo "1746"]
[BlackElo "1642"]
[Annotator "kemen"]
[PlyCount "80"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,80,19,31,25,-16,7,27,62,62,52,62,104,69,66,63,63,63,48,26,22,28,35,36,
33,0,47,37,54,59,61,58,83,83,78,63,59,47,42,31,40,42,56,44,113,99,118,114,124,
114,125,132,124,132,125,100,80,78,90,86,84,86,98,80,90,95,102,87,104,16,20,-28,
108,-20,-20,-496,-544,-544,-5,-5,0,-64,-4]} 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5
a6 5. bxa6 g6 6. Nc3 Bxa6 7. Nf3 (7. e4) 7... d6 8. g3 Bg7 9. Bg2 O-O 10. Rb1
Nbd7 11. O-O Qc7 (11... Qa5 {main}) 12. Qc2 (12. b3 Rfb8 13. Qc2) 12... Rfb8
13. Rd1 (13. b3) 13... Nb6 (13... Ng4) 14. b3 Nfd7 {4 Wh wins, 1 draw} (14...
Bb7 {forces e4, though 5 Wh wins, 1 draw}) 15. Bb2 Ne5 $146 {Stockfish10} 16.
Nxe5 Bxe5 17. a4 {Stockfish10} Nd7 18. e4 (18. Bc1 Rb7 19. Bd2 $16 {Komodo13})
18... Qb6 (18... c4 $11 {Komodo13}) 19. Ba1 Qa5 (19... Nf6) 20. Bf1 Bxf1 21.
Kxf1 Rb7 (21... c4 $11) 22. Nb5 $16 (22. f4 $16) 22... Bxa1 23. Rxa1 Rab8 24.
Kg2 Qb4 25. Rab1 Nf6 (25... h5 $5) 26. f3 Ne8 27. Rd3 (27. Qc1 Nc7 28. Na3 Na8
29. Rd3 Nb6 30. Nb5 c4 31. Rd4 Qa5 32. bxc4 Nxa4 33. Rd2 Nc5 34. Ra1 Nb3 35.
Rxa5 Nxc1 36. Nd4 Rb2 37. Rxb2 Rxb2+ 38. Kh3 Nd3 $11 {Komodo13}) 27... Nc7 28.
Nxc7 Rxc7 29. Rc3 (29. Ra1 Qa5 30. g4 $16 {Komodo13}) 29... Rcb7 (29... c4 $14)
30. f4 h5 31. Kf3 Qd4 (31... Qa5 32. Kg2 Rb4 33. Rf1 c4 $11 {Komodo13}) 32. Rc4
Qf6 33. a5 e5 34. a6 (34. dxe6 Qxe6 35. Kg2 Ra7 36. Ra1 Rb5 37. Qc3 Ra6 $11 {
Komodo13- the variations in a Benko are often shifting & hard to evaluate- Bl
certainly gets a lot of piece activity, but the extra pawn might yet be
decisive in the long run.}) 34... Ra7 35. Ra4 h4 (35... Rb6) 36. Qg2 (36. Qc3
$14) 36... exf4 37. gxf4 $2 (37. Qb2 {looks forced} Qxb2 38. Rxb2 fxg3 39. hxg3
hxg3 40. Kxg3 Rb6 41. b4 cxb4 42. Rbxb4 Rbxa6 43. Rxa6 Rxa6 44. Kf4 $11 {
Komodo13}) 37... Qc3+ $19 38. Kg4 Rxb3 {Bl is happy to have his pawn back;
however the exposed position of the Wh K should have been a signal} (38... f5+
$1 {a forcing move that needs to be looked at in case it works, as it does
here.} 39. exf5 (39. Kxh4 Rh7+ 40. Kg5 Rh5+ 41. Kxg6 Qh8 {difficult to see
ahead, but it must be found} 42. Qg5 Rf8 43. Qxh5 Qf6#) (39. Kg5 Qh8 $1 40. Qe2
Rf8 41. exf5 Rxf5+ 42. Kg4 Qh5+ 43. Kh3 Qxe2 44. Rg1 Qf3+ 45. Rg3 hxg3 46. hxg3
Rh5#) 39... gxf5+ 40. Kxf5+ Rg7 41. Qxg7+ (41. Rg1 Rf8+ 42. Ke4 Re8+ 43. Kf5
Re5+ 44. Kf6 (44. fxe5 Qxe5#) 44... Re2+ 45. Kf5 Rexg2 46. Rxg2 Qh3+ 47. Ke4
Rxg2 48. Ra2 Rg7 49. Rg2 Rxg2 50. f5 (50. a7 Re2#) 50... Rg4#) 41... Kxg7 42.
Rg1+ Kf7 43. Re4 Qh3+ 44. Rg4 Rg8 {and mate in 7- Komodo13 ; in these kind of
positions Engines excel with their calculating accuracy.}) 39. Rxb3 Qxb3 40.
Ra2 Qc4 $11 (40... Qc4 41. Qe2 Qxe2+ 42. Rxe2 Rxa6 43. e5 Kf8 44. Kxh4 Ke7 45.
Rb2 Ra7 $11 {Komodo13}) 1/2-1/2

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.12"]
[Round "2.5"]
[White "Parri, Deio"]
[Black "Horrell, Stephen"]
[Result "0-1"]
[ECO "E34"]
[WhiteElo "1659"]
[BlackElo "1696"]
[Annotator "kemen"]
[PlyCount "98"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,98,19,31,39,-16,-10,4,4,-25,-1,0,32,45,53,47,55,77,88,69,92,86,83,84,
98,77,83,57,50,27,31,41,54,47,94,59,52,27,30,20,24,25,25,33,35,-16,6,10,17,15,
20,0,0,-2,11,2,7,-34,-4,-28,-23,-40,-22,-46,0,-52,-28,-55,-51,-42,112,6,0,0,0,
0,0,-21,-17,-36,-39,-43,-10,19,-7,-9,-3,-10,-52,-97,-103,-160,-98,-180,-221,
-218,-129,-106,-150,-373,-403]} 1. d4 d5 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nf6 5. Nf3
Ne4 (5... O-O) (5... c5) 6. e3 h6 (6... O-O) 7. Bd3 Nxc3 (7... f5 {2-1}) 8.
bxc3 Be7 9. O-O O-O 10. cxd5 exd5 11. e4 $16 {Komodo13} (11. Rb1 {Fritz15} b6
12. Re1 Nc6 13. e4 Bg4 14. Nd2 Bg5 15. exd5 Bxd2 16. Bxd2 Ne7 17. c4 Qd7 18.
Bb4 Rfe8 {Webster-Gurner ,Guernsey Holiday op 2015,1-0}) 11... c6 12. h3 Nd7
13. e5 Nb6 14. Nh2 c5 15. Qe2 cxd4 16. cxd4 f5 17. f4 (17. exf6 Bxf6 18. Be3
$16 {Bl's K side is a bit loose}) 17... Be6 {Wh's K side attack has been halted
} 18. Be3 (18. Rb1) 18... Rc8 19. Rfc1 Nc4 $11 20. Bf2 Qd7 (20... b5) 21. Nf3
b5 22. a4 b4 (22... bxa4 $15) 23. Nd2 Rc7 24. Nb3 Rfc8 25. Be1 Qc6 26. Qh5 Qe8
27. Qxe8+ (27. Qe2 $11) 27... Rxe8 $11 28. Rc2 Rb8 29. Rac1 Kf7 30. Kf2 Rcc8
31. Ke2 g5 32. Bg3 (32. g4 $11 {Komodo13}) 32... h5 33. Kf2 (33. fxg5 Bxg5 34.
Ra1 Be3 35. Bf2 Bxf2 36. Kxf2 Ke7 $15 {Komodo13}) 33... h4 34. Bh2 Na3 (34...
Bd7 $17) 35. Rxc8 Rxc8 36. Rxc8 Bxc8 37. fxg5 Bxg5 38. g3 (38. Kf3 $11) (38.
Bg1 $11) 38... Nc4 (38... hxg3+ 39. Kxg3 f4+ 40. Kf3 Bxh3 $15 {Komodo13}) 39.
gxh4 Bxh4+ 40. Bg3 (40. Kf3 $11) 40... Bg5 (40... Be7 $15) 41. Kf3 (41. h4 $11)
41... Nd2+ 42. Nxd2 Bxd2 43. Bf4 (43. Bc2 f4 44. Bxf4 Bxf4 45. Kxf4 Bxh3 $11 {
Komodo13}) 43... Bc3 $17 44. Be3 (44. Ke3 b3 45. h4 a5 46. h5 Bb2 47. Bg3 Bc1+
48. Kf3 Bd7 49. Be1 Ke6 50. Bxa5 Bxa4 $17 {Komodo13}) 44... b3 $19 45. Ke2 a5 (
45... f4 46. Bxf4 Bxh3 47. Ke3 (47. Be3 Bg4+) 47... Bg2 $19 {Komodo13}) 46. Kd1
f4 (46... Kg6) 47. Bxf4 Bxd4 (47... Bxh3 $19) 48. h4 Bd7 49. Bb5 (49. Bd2 $1
Bxe5 50. Bxa5 Bf4 51. Bd2 Bg4+ 52. Ke1 (52. Kc1 b2+ $19) 52... Bg3+ 53. Kf1 Ke6
54. Bc3 Bxh4 55. a5 Bd8 56. a6 Bb6 57. Ke1 $11 {Komodo13}) 49... Bf5 $19 (49...
Bxb5 50. axb5 a4 $19) 0-1

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.12"]
[Round "2.6"]
[White "James, Lucas"]
[Black "Parsons, David"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "1515"]
[BlackElo "1691"]
[Annotator "kemen"]
[PlyCount "98"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,98,25,19,53,48,77,58,80,24,147,30,72,58,59,-4,1,-136,-128,-170,-144,
-139,-61,-39,-51,-46,-6,-19,-23,-23,-3,-4,32,28,6,-7,4,-5,4,-35,33,35,35,-70,
-104,-280,30,-189,-201,-196,-197,-190,-202,-199,-197,-187,-186,-205,-213,-222,
-210,-223,-250,-267,-223,-260,-189,-230,-244,-231,-203,-202,-210,-202,-213,
-217,-226,-274,-267,-314,-301,-331,-353,-368,-278,-273,-292,-287,-292,-300,
-306,-316,-373,-464,-579,-754,-832,-832,-1011,-1117,-1164]} 1. e4 e5 2. Nf3 d6
3. d4 Nf6 4. Bc4 (4. Nc3) 4... Be7 (4... Nxe4 5. dxe5 c6 {is perfectly safe})
5. O-O O-O {4 Wh wins, 1 draw} (5... exd4 {40 % for Wh}) 6. dxe5 (6. Nc3 Nbd7 {
back to main 13,611 games}) (6. Re1) 6... Nxe4 (6... dxe5 7. Nxe5 (7. Qxd8 Bxd8
{Cloud Engines}) 7... Be6 (7... Nxe4 $11 {Komodo13}) 8. Bxe6 fxe6 9. Qxd8 Rxd8
10. Nc3 {3-0}) 7. Qd5 {while good in some variations, here the Q can easily
get into trouble} (7. Re1 {Cloud Engines} Nc5 {1.5-2.5}) 7... Nc5 $11 8. b4 (8.
exd6 Qxd6 9. Qxd6 Bxd6 $11 {Cloud Engines}) 8... Be6 $19 9. Qd4 Nc6 10. Qc3
Bxc4 (10... Nxe5 $1 11. Bxe6 (11. Nxe5 Bf6 $19) 11... Nxe6 12. Nbd2 Nxf3+ 13.
Qxf3 d5 $19 {Komodo13}) (10... Ne4 11. Qd3 d5 12. Bb3 Bxb4 $17 {Komodo13}) 11.
Qxc4 Ne6 (11... d5 12. Qb5 a6 13. Qe2 Nxb4 $17 {Komodo13}) 12. Rd1 Qc8 $15 13.
Bb2 dxe5 14. Nxe5 Nxe5 (14... Nxb4 $15) 15. Bxe5 Rd8 16. Nc3 $11 c6 17. Ne4 b5
18. Qc3 (18. Rxd8+ Bxd8 19. Qe2 $11 {Komodo13}) 18... Rd5 19. Nd6 (19. a3)
19... Qf8 (19... Bxd6 20. Bxd6 Qd7 21. Rxd5 cxd5 22. Qe5 Rc8 23. Qxd5 Rd8 24.
Rd1 Nc7 25. Qd4 Qe6 26. g3 Ne8 27. Qxa7 h6 $19 {Komodo13}) 20. Rxd5 cxd5 21.
Qg3 (21. Qc6 Rd8 22. Nxb5 $11) (21. Nf5 Bxb4 22. Qf3 Bc5 23. Rd1 g6 24. Rxd5
Rc8 25. Ng3 Be7 26. Rxb5 Rxc2 27. h3 $11 {both Komodo13}) 21... f6 $17 22. Qg4
Nd8 $11 (22... Nc7 $19) (22... Ng5 $19 {both win a piece}) 23. Nxb5 (23. Qf3 $1
Nf7 24. Nxf7 Qxf7 25. Bc3 $11 {Komodo13}) 23... fxe5 $19 24. Nc7 Rb8 25. Nxd5
Bxb4 26. Rb1 Bd6 27. Rxb8 Bxb8 28. Qh4 Bd6 29. Qc4 Nf7 (29... Qf7) 30. Kf1 Bc5
31. f3 Bb6 32. Ke2 Qc5 33. Nxb6 (33. Qxc5) 33... Qxb6 34. Qc8+ Qd8 (34... Nd8)
35. Qxd8+ Nxd8 36. Kd3 Kf7 37. Ke4 Ke6 38. c4 Nf7 39. h4 Nd6+ 40. Kd3 Nf5 41.
h5 Kd6 (41... Nh4) 42. g4 Ne7 43. Ke4 Nc6 44. g5 g6 45. hxg6 hxg6 46. a3 Kc5
47. f4 exf4 48. Kxf4 Kxc4 49. Ke4 a6 0-1

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.12"]
[Round "2.7"]
[White "Szakmany, Bence"]
[Black "Williams, Stephen"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1515"]
[BlackElo "1675"]
[Annotator "kemen"]
[PlyCount "100"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,100,25,15,74,71,67,43,47,36,26,21,31,15,16,15,17,25,41,15,41,27,28,30,
59,26,20,0,0,0,11,4,4,-5,7,-25,7,7,25,-12,-18,-13,-15,-24,-22,-26,-29,-44,-15,
-57,-63,-75,-70,-88,-88,-88,-107,-94,-93,-104,-109,-123,-113,-129,-115,-123,
-119,-212,-230,-236,-250,-234,-282,-484,-485,-433,-359,-379,-444,-431,-368,
-386,-418,-437,-429,-491,-493,-520,-498,-645,-674,-713,-560,-784,-569,-588,
-584,-584,-619,-1195,-1292,-1292,-1568]} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3
(4. c4) 4... Nc6 5. c3 Nf6 6. Nf3 Bg4 7. h3 (7. O-O) 7... Bh5 8. Bf4 e6 9. O-O
Be7 (9... Bd6) 10. Nbd2 O-O 11. Re1 a6 {21% for Wh} (11... Rc8 {23% for Wh})
12. a4 (12. Qc2 {1 win, 1 draw, 1 loss}) 12... Rc8 13. Nf1 (13. Qe2 Re8 14. g4
Bg6 15. Bxg6 hxg6 16. Ne5 Bd6 {Schmidt-Roehrkasten, Niedersachsen ch 2015,
draw agreed}) 13... Bg6 (13... Na5 14. Ng3) 14. Ng3 Na5 15. Ne5 (15. Bxg6 hxg6
16. Ne5 Nd7 17. Nxd7 Qxd7 18. Nf1 Nc4 19. Re2 b5 20. Ne3 b4 21. Nxc4 Rxc4 22.
cxb4 Rxb4 23. b3 Bd6 24. Bxd6 Qxd6 25. Qd3 Rfb8 26. Rb1 Qb6 27. Reb2 Rxd4 {
Cojocaru-Cioara, Galatzi GP op 2007,0-1}) 15... Bxd3 16. Nxd3 Nc4 17. b3 Nd6
18. Rc1 b6 (18... Nde4 19. Ne2 $11) 19. Bxd6 Bxd6 20. Ne5 b5 (20... Nd7) 21.
axb5 axb5 $15 22. b4 Qc7 23. f3 Nd7 24. Nxd7 Qxd7 $17 25. Nf1 (25. Ne2 {
the backward c pawn needs attention}) 25... Qc7 (25... Rc6 26. Qd3 Qc7 27. Re2
Rc8 28. Rec2 Bxb4 $19 {Komodo13}) 26. Nd2 Bf4 (26... Qd8 27. Re2 Rc6 28. Nb3
Qf6 29. Nc5 Qf4 $17 {Wh has shielded the c pawn, but if left with a very open
K side}) 27. Rc2 Bg3 28. Re2 Ra8 $19 29. Nf1 (29. Nb3 Ra3 30. Nc5 Qe7 $19 {
Komodo13}) 29... Bd6 30. Qe1 Rfc8 31. Qc1 Ra4 32. Qb2 Rca8 33. Nd2 Ra2 34. Qxa2
(34. Qc1 Rxc2 35. Qxc2 Bxb4 $19) 34... Rxa2 35. Rxa2 Qxc3 {Wh has a collapsed
centre & a windswept K side; also pieces that can't quite co-operate} 36. Nb1
Qxd4+ 37. Kf1 Qd1+ (37... g6) 38. Re1 Qd3+ 39. Kg1 Bxb4 40. Ra8+ Bf8 41. Kh1 g5
42. Rc1 Kg7 43. Rac8 b4 44. Rb8 Bd6 45. Rb6 Bf4 46. Re1 b3 (46... Qd4 47. Rc6
Qf2 48. Rd1 Qe2 49. Rg1 Be3 {hunts a R down}) 47. Rb7 Qc2 48. Na3 Qa2 (48...
Qc3) 49. Ra7 Qf2 50. Rb1 Qxa7 0-1

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.12"]
[Round "2.8"]
[White "Penny, Liam"]
[Black "Chung, Daniel"]
[Result "1-0"]
[ECO "D04"]
[WhiteElo "1674"]
[BlackElo "1434"]
[Annotator "kemen"]
[PlyCount "101"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,101,19,31,23,20,24,5,15,13,35,5,-4,-22,-4,96,194,185,230,105,185,126,
170,168,217,169,188,146,146,152,138,139,148,135,109,75,75,63,154,161,162,164,
183,136,140,140,155,156,167,156,153,158,158,152,209,203,258,280,279,284,278,
288,315,283,475,461,474,498,547,550,579,360,366,373,388,388,484,1150,1341,1385,
1458,610,1082,1597,29981,29982,29983,29986,29987,29986,29987,29988,29989,29990,
29993,29992,29993,29994,29995,29996,29997,29998,29999,-30000]} 1. d4 d5 2. Nf3
Nf6 3. e3 Bg4 (3... e6 {most frequent}) 4. h3 (4. c4) 4... Bh5 5. g4 Bg6 6. Ne5
{still in GM territory} Nbd7 {73% for Wh} (6... Nfd7 {45% for Wh}) 7. h4 h5 {
60% for Wh} (7... h6 {78% for Wh}) 8. Nxg6 fxg6 9. g5 (9. Bd3 Kf7 (9... Ne4 10.
f3) 10. g5 {5-0}) 9... Ne4 10. Bd3 (10. Qd3 {also works for Wh}) 10... c5 (
10... e5 11. f3 Nxg5 12. Bxg6+ (12. hxg5 Qxg5 13. Qe2 $18) 12... Nf7 $11 13.
Bxf7+ Kxf7 14. Nc3 Bb4 {Densing-Mqami, Gibraltar Masters 2014,0-1}) (10... c6
11. f3 Qa5+ 12. c3 Nd6 13. Bxg6+ Kd8 14. e4 $18 {Kieselbach-Laag, GER ch U25,
Willingen 2018,0-1}) 11. f3 c4 12. Bxe4 (12. fxe4 cxd3 13. Qxd3 dxe4 14. Qxe4
Qb6 15. Nc3 $18 {Komodo13}) (12. Nc3 $18 {Komodo13}) 12... dxe4 13. fxe4 $18
Qc7 14. Qf3 (14. e5 $18) 14... e6 15. Nc3 (15. O-O) 15... Bb4 16. e5 (16. Bd2
$18) 16... Rf8 (16... Bxc3+ 17. bxc3 Rf8 18. Qe4 Rf5 19. a4 $16 {Komodo13}) 17.
Qe2 $2 (17. Qe4 $16) (17. Qg2 $16) 17... Qc6 {missing an opportunity} (17...
Nxe5 $1 $19 {Stockfish10} 18. Bd2 (18. dxe5 Bxc3+ 19. bxc3 Qxe5 $19 {and it's
the Wh K in trouble} 20. Bd2 Qg3+ 21. Kd1 Rf2 22. Qxc4 Qf3+ 23. Kc1 Qxh1+ 24.
Kb2 Qd5 $19) 18... Nf3+ 19. Kd1 Bxc3 20. bxc3 e5 $19 {Stockfish10}) 18. Rh2 Qf3
(18... Nb6 19. Bd2 Bxc3 20. Bxc3 Qe4 21. O-O-O Rc8 22. Re1 Nd5 {and the wh
square blockade should allow Bl to hold the game#} 23. Qg2 Rf3 24. Rh3 Rf4 25.
Qxe4 Rxe4 26. Kd2 Kf7 27. Rf1+ Kg8 $11) 19. Qxf3 Rxf3 20. Ke2 Rf7 21. Bd2 (21.
Ne4 $18) 21... Bxc3 22. Bxc3 O-O-O 23. Bb4 (23. b3 $18 {Komodo13-opens up the
game for Wh's B & QR}) 23... Nb6 24. Rf2 Rxf2+ 25. Kxf2 Nd5 26. Bd6 Re8 27. Ke2
(27. e4) 27... Ne7 28. e4 Nc6 29. Ke3 Nd8 30. Rf1 {Wh controls the board} Kd7
31. Bf8 (31. d5) 31... Re7 {desperation} (31... b5 32. Bxg7 Re7 33. Bf8 Rf7 34.
Rf6 $18 {Komodo13}) 32. Bxe7 Kxe7 33. d5 exd5 34. exd5 Nf7 35. Rxf7+ (35. Kd4)
35... Kxf7 36. Kd4 Ke7 37. Kxc4 Kd7 38. Kc5 Kc7 39. e6 b6+ 40. Kd4 Kd6 41. c4
a5 42. a4 {zugzwang} (42. b3 {prepares for c5}) 42... Ke7 43. Ke5 b5 44. cxb5
Kf8 45. b6 Kg8 46. e7 Kh7 47. b4 {avoiding stalemate} (47. b7 Kh8 48. b8=R+ Kh7
49. e8=B Kg8 50. Bxg6# {Komodo13 solution}) 47... axb4 48. b7 b3 49. b8=Q b2
50. e8=Q b1=Q 51. Qh8# 1-0

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.12"]
[Round "2.9"]
[White "Wells, Thomas"]
[Black "Philpin, Les"]
[Result "0-1"]
[ECO "A12"]
[BlackElo "1675"]
[Annotator "kemen"]
[PlyCount "120"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,120,20,-17,-40,-42,-11,-21,6,12,12,14,1,-18,27,14,15,20,48,34,48,26,
32,34,19,13,63,56,56,59,69,108,108,96,144,137,185,161,194,102,162,162,160,163,
163,160,224,268,263,261,338,373,386,258,256,257,270,208,201,194,282,264,258,
208,379,383,403,381,401,397,496,331,386,348,333,357,389,393,389,396,396,364,
374,299,374,374,804,0,2,-10,0,-34,-25,-146,0,-39,-34,-101,0,-34,16,-41,-33,-52,
-76,-148,-143,-160,-142,-407,-267,-530,-331,-573,-573,-550,-589,-598,-327,-327,
-359,-383,-339]} 1. c4 e6 2. g3 Nf6 3. Bg2 Be7 4. Nf3 d5 5. O-O O-O 6. b3 c6 (
6... c5) (6... b6) 7. Bb2 Nbd7 8. d3 (8. d4 {becomes a Catalan}) 8... Re8 9.
Nbd2 Qc7 (9... Bf8) (9... Bd6) 10. Rc1 b6 (10... h6 11. cxd5 exd5 12. e4 dxe4
13. dxe4 Nh7 14. e5 Nc5 15. b4 $2 Nd3 16. Bc3 Nxc1 17. Qxc1 Be6 18. Qb2 Rad8
19. Nd4 Bf8 (19... Bd5 $19) 20. f4 (20. Nxe6) 20... Bd5 21. Ne4 c5 $19 22. Nf5
{Kosuzek-Posva, Vera Menchik mem rapid, Prague jun 2019,1-0 ( Wh the Winner of
the West Wales Open 2019)}) 11. e4 (11. cxd5 exd5 12. Qc2 Bb7 13. e4 dxe4 14.
dxe4 Rad8 15. h3 Nc5 16. Ne5 Nfd7 17. f4 Nxe5 18. Bxe5 Qd7 $11 {Schatz-Kuhn,
Bayern ch, Freising 2001,1-0}) 11... dxe4 (11... Bb7 12. e5 (12. Qe2 dxe4 13.
dxe4 h6 14. e5 Nh7 15. Ne4 Rad8 16. Rcd1 Nc5 17. Nd6 $18 {Robs-Meiers, LAT ch
minor, Riga 1937,1-0}) 12... Ng4 13. cxd5 exd5 14. Re1 Bf8 15. d4 g6 16. Ng5
$18 {Cimolai-Gouiran,Provence ch acces, Meyreuil 1993,1-0}) 12. dxe4 (12. Nxe4
$5) 12... Nc5 (12... e5) 13. Qc2 Bb7 14. e5 $16 Nfd7 15. b4 Na6 16. a3 {
Wh has the space advantage typical of a Catalan} Rac8 17. Ne4 $18 c5 18. b5
Nab8 19. Rcd1 $18 (19. Nd6 $18 Bxd6 (19... Bxf3 20. Nxc8 Rxc8 21. Bxf3 $18) 20.
exd6 Qd8 21. Ng5 Qxg5 22. Bxb7 Rcd8 23. f4 Qh6 24. Bc6 $18 {Stockfish10}) (19.
h4 $18) (19. Rfe1 $18) 19... Bxe4 20. Qxe4 Nf8 21. Nd2 (21. Ne1 Rcd8 22. Nd3 f5
23. Qe2 Rd7 24. g4 $18 {Stockfish10}) 21... Ng6 22. f4 Red8 23. f5 $1 exf5 24.
Qxf5 Nh8 (24... Rd4 $5) 25. Bd5 Rf8 26. e6 (26. Ne4) (26. Rf2) (26. h4) 26...
f6 27. Ne4 (27. Be4 g6 28. Qh3 Kg7 29. Bd5 Bd6 30. Bxf6+ Rxf6 31. Rxf6 Be7 (
31... Kxf6 32. Qh6 $18) 32. Rf4 $18 {Stockfish10}) (27. Rf4) (27. Qh3 Ng6 28.
Rf5) 27... Ng6 28. Nc3 (28. Qh5 Kh8 29. Rd2 (29. Ng5 fxg5 30. Be4 Kg8 31. Rf7 {
is an immediate win-Stockfish10}) 29... Rcd8 30. Rdf2 Kg8 31. g4 $18 {
Stockfish10- one of the many ways Wh can just build up for a breakthrough})
28... Qe5 29. Qf3 (29. Qc2) 29... Rfd8 30. Rfe1 Qc7 31. Qf5 (31. Qh5) 31... a5
32. Be4 Rxd1 33. Rxd1 Rd8 34. Nd5 Qa7 (34... Rxd5 {is Stockfish10's best
suggestion for Bl} 35. Qxd5 $18) 35. h4 Nf8 36. h5 (36. Qh5 g6 37. Qh6) 36...
h6 37. Re1 (37. Rf1) 37... Rd6 38. Bb1 (38. Nf4) (38. Bc3) (38. Bd3) 38... Qb7
39. Bc1 Rd8 40. Be4 Qa7 41. Rf1 (41. Bf4 Kh8 42. Rf1 Re8 43. Bc7 (43. Be5 fxe5
$2 44. Qf7 Rc8 45. Nxe7 Nxe6 46. Qg6 Ng5 47. Rf7 Rg8 48. Qh7+ Nxh7 49. Ng6#)
43... Qb7 44. Bxb6 $18) 41... Rd6 42. Bf4 Rxe6 43. Bxb8 (43. Nc7 Re5 44. Bxe5
fxe5 45. Qf7+ Kh8 46. Qxf8+ Bxf8 47. Rxf8# {Stockfish10}) (43. Nxe7+ Rxe7 44.
Bd5+ Kh8 45. Qc8 Nbd7 46. Bd6 Re3 47. Bxf8 Qb8 48. Bxg7+ Kxg7 49. Qxd7+ Kh8 50.
Kh1 Qe8 51. Qxe8+ Rxe8 52. Rxf6 $18 {Stockfish10}) (43. Re1 $18 {Stockfish10})
(43. Nc3 Kh8 44. Bd5 Rd6 45. Re1 $18 {Stockfish10}) 43... Qxb8 $11 44. Kg2 (44.
Qg4) 44... Re5 45. Qf3 Bd6 46. Rd1 (46. Ne3 Ne6 47. Nf5 Nd4 48. Nxh6+ gxh6 49.
Qxf6 Qe8 50. Bd5+ Rxd5 51. cxd5 Nc2 52. Qxd6 Ne3+ 53. Kf2 Nxf1 54. Kxf1 Qxh5
$11 {Stockfish10}) (46. Nxf6+ gxf6 47. Qxf6 Rxe4 48. Qf7+ Kh8 49. Qf6+ Kg8 50.
Qf7+ $11 {Stockfish10}) 46... Be7 (46... Rg5 $15 47. g4 Ne6 48. Bf5 Nd4 49.
Rxd4 cxd4 50. a4 Kf8 51. Kf1 $11 {Stockfish10}) 47. Re1 (47. Ne3 $18 Ne6 48.
Ng4 Nd4 49. Qf4 Ne2 50. Bd5+ Kf8 51. Qf3 Nd4 52. Nxe5 Qxe5 53. Qg4 $18 {
Stockfish10}) 47... Bd8 48. Qc3 Rg5 (48... Rxh5 $17) 49. Qf3 Qc8 50. Nf4 {
the game is showing all the signs of a mutual timescramble} (50. Bg6 $16) 50...
Bc7 51. Bd5+ Kh8 52. Re7 (52. Bf7 Be5 53. Kf1 $11 {Stockfish10}) 52... Bxf4 $19
53. Qxf4 Rxh5 54. g4 Rg5 (54... Rxd5 $1 55. cxd5 Ng6 56. Qe4 Nxe7 57. d6 (57.
Qxe7 Qxg4+ 58. Kf2 Qf5+ 59. Ke1 Qxd5 $19) 57... Ng8 58. Qf5 Qf8 59. Qd5 f5 60.
d7 Qd8 $19 {Stockfish10}) 55. Kg3 h5 (55... Ng6 56. Be6 Qa8 57. Qc7 Nxe7 58.
Qxe7 Re5 $19 {Stockfish10}) 56. Bf3 Ng6 57. Qe3 Nxe7 58. Qxe7 Rxg4+ (58... hxg4
$19 {Stockfish10}) (58... Qb8+ 59. Kg2 hxg4 $19 {Stockfish10}) 59. Bxg4 Qxg4+
60. Kf2 Qd4+ 0-1

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.12"]
[Round "2.10"]
[White "Vesz, Marcell"]
[Black "Probert, Malcolm"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1561"]
[BlackElo "1541"]
[Annotator "kemen"]
[PlyCount "71"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,71,19,31,41,46,51,33,31,4,37,35,57,37,56,56,41,30,24,14,4,-11,-12,-8,
3,-42,-31,-38,-17,5,-5,2,2,13,64,82,45,48,62,60,58,56,122,130,108,150,186,194,
218,243,243,246,249,172,244,250,239,234,235,211,348,343,341,322,317,315,323,
353,331,206,210,230,349,305]} 1. e4 e6 2. d4 d5 3. e5 (3. Nc3 Bb4 4. e5 b6 5.
a3 Bf8 6. Nf3 Qd7 7. Ne2 Ba6 8. Ng3 Bxf1 9. Nxf1 c5 10. c3 Nc6 {Booley-Probert,
High Wycombe e2e4 Inter 2012,1-0} 11. Ne3) 3... Ne7 4. Bg5 (4. Nf3) (4. Bd3)
4... Qd7 5. Nf3 b6 6. Bd3 (6. Nc3) 6... Ba6 7. Bxa6 (7. O-O {1 win, 1 draw, 1
loss}) 7... Nxa6 8. a3 $146 (8. Qe2 {Cloud Engines} Nb8 9. O-O (9. Nc3 Nf5 10.
g4 Ne7 11. h4 h5 12. gxh5 Nf5 13. a3 Nc6 14. O-O-O Na5 15. Qa6 Qc8 16. Nb5 c6
17. Qxc8+ Rxc8 18. Nc3 Rxh5 {Rodriguez Mellado-Brito Garcia, Gran Canaria
Primavera op 2009,0-1}) 9... h6 10. Bxe7 Bxe7 11. c4 O-O {
Chevaldonnet-Marzalek, Pernik Benderev mem 1981,1/2-1/2} (11... c6 12. Nc3 a6
13. Rac1 Ra7 14. Rc2 O-O 15. Rfc1 {Chevaldonnet-Roos, FRA ch, Le Touquet 1977,
0-1})) 8... c5 9. Qd3 Nb8 10. c3 Nbc6 11. O-O h6 12. Bf4 (12. Be3) 12... c4 (
12... a5 $11 {Komodo13}) 13. Qe2 Nf5 14. Nbd2 g5 15. Be3 g4 16. Ne1 Nxe3 $6 (
16... h5 $11) 17. fxe3 $16 {the f file is useful for Wh, as is the possibility
of e4} h5 18. e4 O-O-O 19. Nc2 Bh6 20. Ne3 Ne7 {it's difficult for Bl to find
somewhere to attack, while Wh can slowly build up (or even have a prospect of
destroying Bl's centre with a N sacrifice)} 21. Rxf7 $18 Rdf8 22. Raf1 Qe8 23.
R7f6 Kd7 24. exd5 Bxe3+ (24... exd5 25. Nexc4 dxc4 26. Nxc4 {will soon be fatal
}) 25. Qxe3 Nxd5 26. Rxf8 (26. Qe4 Nxf6 27. Qb7+ Kd8 28. Qb8+ Kd7 29. Qxa7+ Kc6
30. exf6 Rf7 31. Qa6 $18 {Komodo13}) (26. Qg5 Nxf6 27. exf6 Rhg8 28. Qe5 Kc8
29. Nxc4 $18 (29. Qe4 $18 {Komodo13})) 26... Nxe3 (26... Rxf8 27. Rxf8 Qxf8 28.
Qf2 $18) 27. R1f7+ Qxf7 (27... Kc6 28. Rxe8 Rxe8 29. Ne4 $18 {Komodo13}) 28.
Rxf7+ Kc6 29. Rxa7 (29. Re7 Rh6 30. Ne4 $18 {Komodo13}) 29... Rf8 30. Re7 Kd5
31. Rd7+ Kc6 32. Rd6+ Kc7 33. Rxe6 b5 34. a4 (34. Rf6) 34... bxa4 35. Ra6 Nd1
36. Nxc4 {the phalanx of cpawns in the middle will win} 1-0

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.12"]
[Round "3.1"]
[White "Miga, Tomasz"]
[Black "Di-Vetta, Andrew"]
[Result "1-0"]
[ECO "A47"]
[WhiteElo "1759"]
[BlackElo "1812"]
[Annotator "kemen"]
[PlyCount "113"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,113,30,18,27,24,51,27,28,21,23,15,39,27,19,24,22,22,36,17,16,19,33,25,
31,26,24,11,28,27,30,26,57,47,46,46,73,49,72,54,99,66,64,11,53,16,109,112,108,
112,104,88,89,88,91,89,87,16,24,24,31,6,105,89,129,127,128,140,139,127,146,150,
143,147,191,232,266,244,294,314,29995,29996,29997,483,499,224,319,200,274,312,
332,199,231,218,303,248,281,309,317,315,323,332,359,381,396,241,248,248,248,
248,264,255,29985,29988,29989,29988]} 1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 d6
5. O-O g6 6. c4 Bg7 7. Qc2 (7. Nc3) 7... Be4 $146 (7... O-O {main}) 8. Qa4+ (8.
Qb3 Nbd7 9. Nc3 Bb7 10. Qc2 {transposes back to 57 games}) 8... Qd7 9. Qxd7+
Nbxd7 10. Nc3 Rc8 (10... Bb7 $11) 11. Nxe4 (11. d5 $5 {Komodo13- trying to
show up wh square weaknesses in the Bl position, but taking the b looks simpler
}) 11... Nxe4 12. Rb1 (12. b3) 12... O-O 13. b3 f5 (13... b5 $11 {Komodo13})
14. Bb2 (14. Ng5 Nxg5 15. Bxg5 h6 16. Be3 c5 17. dxc5 Nxc5 18. Rfd1 $11 {
Komodo13}) 14... g5 15. Rfd1 e6 16. Nd2 (16. Ne1 $14) 16... Ndf6 17. Nxe4 fxe4
{creates a longterm weakness} (17... Nxe4 {at least costs Wh the B}) 18. d5 (
18. f3 exf3 19. exf3 Rce8 20. Re1 $16 {Komodo13- the Bl centre is a little
suspect}) 18... e5 (18... exd5 19. Bxf6 Bxf6 20. Bh3 Rce8 21. cxd5 h5 22. Rbc1
(22. Be6+ Kg7 23. Rbc1 c5 $11) 22... g4 23. Bg2 Re7 24. e3 $16 {Komodo13}) 19.
h3 (19. Rf1 $16) (19. Bc1 h6 20. Bh3 g4 21. Bg2 Kh7 22. h3 h5 23. h4 Bh6 24.
Bg5 $16 {Komodo13}) 19... g4 20. h4 (20. hxg4) 20... Bh6 21. Bc1 (21. e3) 21...
Kg7 (21... Bxc1 22. Rbxc1 a5 23. Rc3 $14) 22. Bg5 Rf7 (22... e3 23. Bxf6+ Rxf6
24. f3 gxf3 25. Bxf3 Kh8 26. Rf1 Rcf8 27. b4 $14 {Komodo13}) 23. Bxf6+ Rxf6 24.
Bxe4 $16 {and the B has won the pawn- with Rs still on, the opposite colour Bs
are a source of attack, depending on which R can be more active} Rcf8 25. f3 (
25. Rf1) 25... Be3+ 26. Kg2 a5 27. Rf1 h5 28. b4 {maybe this need further
preparation as the Bl Rs gain some activity as well} axb4 29. Rxb4 Ra8 30. Rb2
Ra3 (30... Bd4 31. Rc2 Ra3 $11) 31. Rb3 Bc5 (31... gxf3+ 32. Bxf3 Rxb3 33. axb3
Kh6 34. b4 $16) 32. Rxa3 Bxa3 33. fxg4 $18 {However Wh has seen he can win an
opposite colour B ending with 2 passed pawns} hxg4 34. Bf5 Rf8 35. Bxg4 Ra8 36.
Be6 {swapping Rs would have been lost, but now there are possibilities of a
quick mate( though Bl has some chances perhaps with his R if Wh gets careless}
Ra7 37. Rf7+ Kg6 38. Kh3 (38. Kf3) 38... Bc5 39. Kg4 Rxa2 40. h5+ Kh6 41. Rf6+
(41. Bf5 Rxe2 42. Rh7# {ends it all}) 41... Kh7 42. Bf5+ Kh8 43. Bd3 Ra1 44. h6
Ra8 45. h7 {as a general rule it is unwise to have the pawn too far aparts, &
it is best to wait to commit them onto the same colour as the B, as there
might be a blockade on the colour the B cannot reach.} (45. Kh5 {threatening a
g pawn advance to g7 is more systematic}) 45... Kg7 46. Re6 Rc8 47. Bf5 (47.
Kh5) 47... Kh8 48. Re7 Rf8 49. Kg5 Be3+ (49... e4 {at least allows the Bl B
onto the long diagonal( the Wh e pawn is a straggler}) 50. Kg6 Bf2 51. g4 Bh4
52. Rf7 (52. g5) 52... Rxf7 53. Kxf7 Bg5 54. Kg6 Be7 55. g5 Bf8 56. Kf7 Bg7 57.
Be4 {Zugzwang} 1-0

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.12"]
[Round "3.2"]
[White "Williams, Stephen"]
[Black "Pinch, David"]
[Result "1/2-1/2"]
[ECO "A59"]
[WhiteElo "1675"]
[BlackElo "1842"]
[Annotator "kemen"]
[PlyCount "85"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,85,30,23,24,-9,10,37,60,46,77,70,98,64,69,57,56,56,63,55,64,73,70,76,
80,58,91,76,87,93,101,47,88,93,120,94,111,-27,124,-24,-18,-30,76,58,70,31,135,
98,95,93,103,107,101,142,136,64,193,207,251,256,264,265,252,252,266,260,259,
263,259,265,263,265,263,256,261,237,290,235,243,186,195,234,235,245,246,195,
267,193]} 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. e4
Bxf1 8. Kxf1 d6 9. Nf3 Bg7 10. g3 O-O 11. Kg2 Nbd7 12. Qc2 {All book so far.
The clock has gained 4 minutes!.} (12. Re1) (12. h3 {main lines _R (other
annotations by David)}) 12... Ra6 {Qa5 or Qb6 are the main moves. The idea
behind Ra6 is to slide the queen behind it with pressure on white's centre,
using e6 or f5 should the opportunity arise.} 13. Rd1 {rare} (13. a4 {main}) (
13. Re1 {[__R ]}) 13... Qa8 14. h3 {Black often plays Ng4, Ne5 so this tries
to prevent that. [transposing to 11 games _R]} Nb6 (14... Rb8 {main_R}) 15. Rb1
$146 Rb8 {[Houdini W0.70 best Na4 W0.63] I wish that I had left the rook on f8
for a while longer, so that after Nfd7 and Ne5 then f5 would have been
interesting.} 16. b3 Nfd7 17. a3 {At the time I thought this was inferior to
a4, but Houdini seems to like it.} Ne5 18. Nb5 {Moving the knight to an
unprotected square is asking for tactics.} (18. Nxe5 Bxe5 19. a4 c4 20. Be3
Bxc3 21. Qxc3 cxb3 22. Qxb3 Nd7 23. Qc4 Rc8 24. Qb5 Nc5 25. Bxc5 Rxc5 26. Qb7
Qxb7 27. Rxb7 Rxa4 28. Rxe7 Kf8 29. Rd7 Rxe4 30. Rxd6 Re2 31. Rc6 Rxc6 32. dxc6
Rc2 33. Rd8+ Ke7 34. Rc8 $14 {Komodo13- but this looks like one of those R & P
endings that atr a dead draw,- Wh's R inactive; Bl's very active _R}) 18... Qb7
{Protecting against the c7 fork, but rejecting Nxd5 to due the Nxd6 response.
Black could not find a satisfactory outcome, although Houdini can.} (18... Nxd5
19. Nxe5 (19. Nxd6 $2 Nxf3 20. exd5 Nd4 21. Rxd4 cxd4 22. Nc4 Qxd5+ $19 {
Komodo13}) 19... Bxe5 20. a4 Nb4 $11 (20... Rxb5 21. axb5 Ra2 22. Qd3 Nc3 23.
Rb2 Nxd1 24. Rxa2 Qxa2 25. Qxd1 Bd4 $11 {Komodo13 _R})) 19. Bb2 Nxf3 {Drawing
the king out of its comfort zone.} 20. Kxf3 Qd7 {Hitting the knight and the
h-pawn. This forces white to play the correct move - a4, but will black have
the nerve to take the h-pawn?.} (20... Nxd5 21. a4 Nb4 $11 {Komodo13-R}) (20...
Bxb2 21. Qxb2 Nxd5 {with the K on the long diagonal & the hanging N on b5,
this must be correct. Though, as seen already, care must still be taken too
get the sequence right. _R} 22. exd5 Qxb5 23. Kg2 Rba8 $17 {Komodo13- _R}) 21.
a4 Bxb2 {Black wants to avoid having his king on g7 where it may be
susceptible to tactical checks from the queen, so swaps first.} 22. Qxb2 Nc8 {
Black forgoes the h-pawn because opening the rook file whilst white has the
long diagonal spells danger.} (22... Na8 {Komodo13 _R}) (22... Qxh3 $2 23. Rh1
Qd7 24. Rxh7 $1 $18 {Komodo13_ R}) 23. Qc2 Na7 {Trying to dislodge the knight.}
24. Na3 Rab6 (24... Qxh3 25. Rh1 Qc8 26. Kg2 $16 {Komodo13 _R}) 25. Nc4 Rb4 26.
Kg2 {Keeping the h-pawn.} Qb7 27. Rd3 (27. Rdc1 $16 {Komodo13 _R}) 27... Nc8 $2
{Blunder. The exchange is lost. The idea was to protect d6 in preparation for
e6, since the e4 pawn is now unguarded.} (27... Rxa4 $11 {also missed _R}) 28.
Na5 Qa6 29. Nc6 R8b6 {[Houdini W3.70] Black prefers to end with the rook on b4.
} 30. Nxb4 Rxb4 31. Rc3 (31. e5 dxe5 32. Re1 $18 {Komodo13}) 31... Nb6 {
To prevent Rc4 since swaps are in white's favour.} 32. Ra1 Qa5 33. f3 Rd4 34.
Rd3 Rb4 35. Rc3 {White cannot form a plan to make progress. White has the
q-side pawns locked up. He must find a way to push the e-pawn.} Rd4 {Black is
happy with a draw now.} 36. g4 Nd7 {The knight can leave guarding c4 since Rc4
is met by Rd2!.} 37. Kg3 g5 {To secure the knight on e5, but it might allow
white to open the h-file later.} 38. Rd3 (38. h4 gxh4+ 39. Kxh4 Ne5 40. Kg3 e6
41. Rh1 $18 {Komodo13}) 38... Rb4 39. Rad1 {White is floundering.} Ne5 40. Rc3
Qb6 41. Ra1 Qa5 42. Rb1 h6 43. Rd1 {[Houdini W1.76 best h4 W2.56] Draw offered
and accepted. Another escape.} 1/2-1/2

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.12"]
[Round "3.3"]
[White "Parsons, David"]
[Black "Penny, Liam"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "1691"]
[BlackElo "1674"]
[Annotator "kemen"]
[PlyCount "59"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,59,80,31,39,8,39,20,29,-3,-16,-9,-1,4,12,5,17,-6,51,1,-6,6,-12,-13,-7,
-40,-42,-37,-32,-30,-33,-67,-46,-38,-15,-39,3,4,31,29,28,28,42,42,43,52,38,40,
68,38,20,12,29987,29988,29989,29990,29993,29994,29995,29996,29997,29998]} 1. d4
d5 2. Nf3 Nf6 3. e3 c5 4. b3 Nc6 5. Bd3 (5. Bb2) 5... e6 (5... Bg4) 6. O-O Be7
(6... Bd6) 7. Bb2 O-O 8. a3 (8. Nbd2) 8... Nd7 (8... b6 {main}) 9. Ne5 $146 (9.
Nbd2 {5 Wh wins, 4 draws, 2 Bl wins}) 9... cxd4 10. exd4 Ncxe5 11. dxe5 Nc5 $11
12. Nc3 Nxd3 13. Qxd3 Bd7 14. Rad1 Rc8 (14... a6) 15. Rfe1 Bc5 16. Ne2 a6 (
16... Qg5) 17. Nd4 Bxd4 (17... Qg5 18. Qe2 Qg6 $15 {Komodo13}) 18. Bxd4 Bb5 19.
Qd2 Qc7 20. c3 $16 {the Bl B is doing less than the Wh one & Wh has a Kingside
space advantage, that may well lead to an attack there} Qa5 21. a4 Bd7 22. Re3
b5 23. axb5 (23. Rg3 $18 {Komodo13 finds an instant win} Kh8 (23... f6 24. exf6
g6 25. Rxg6+ hxg6 26. Qh6 Rf7 27. Qxg6+ Kf8 28. Be3 Ke8 29. Bh6 Kd8 30. Qxf7
$18) (23... g6 24. Qh6) 24. Rxg7 Rg8 (24... Kxg7 25. Qg5+ Kh8 26. Qf6+ Kg8 27.
Rd3 {mating}) 25. Rxf7 Be8 26. Re7 Qd8 27. Rxe6 Qh4 28. Rxa6 $18 {Komodo13})
23... Qxb5 24. Rb1 (24. Rg3 $18 Qxb3 25. c4 Qa4 26. Ra1 Rb8 27. Qc1 Qb4 28. Bc3
Qe7 29. Qh6 g6 30. cxd5 $18 (30. Rh3 $18 {Komodo13})) 24... a5 25. Rg3 a4 (
25... Kh8 26. Qg5 Rg8 27. f4 h6 28. f5 Kh7 29. Qe7 $16 {Komodo13}) 26. Qh6 g6
27. Rh3 Rfd8 28. Qxh7+ Kf8 29. Qh8+ Ke7 30. Qf6+ 1-0

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.12"]
[Round "3.4"]
[White "Horrell, Stephen"]
[Black "Pe, Philip"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "1696"]
[BlackElo "1789"]
[Annotator "kemen"]
[PlyCount "92"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,92,19,19,83,60,62,63,59,53,51,60,101,50,35,-5,-31,-41,-31,-39,-45,-46,
-38,-42,-51,-88,-49,-50,-55,-48,-8,9,-2,-26,-13,2,58,46,82,61,161,93,95,108,
153,165,167,62,172,199,192,138,169,182,298,1,35,11,72,95,11,35,340,335,406,233,
233,174,702,84,73,-12,911,-225,-221,-513,-521,-521,-325,-337,-335,-393,-350,
-399,-385,-616,-349,-356,-362,-399,-406,-422,-452,-464,-545]} 1. e4 b6 2. d4
Bb7 3. Bd3 e6 4. Nc3 (4. Nf3) 4... Bb4 5. Nge2 Nf6 6. Bg5 (6. O-O) (6. a3) 6...
h6 7. Bh4 (7. Bd2) 7... g5 8. Bg3 Nxe4 9. Bxe4 Bxe4 10. f3 (10. O-O {Wh has a
bit of play for the pawn as the Bl K side has been weakened}) 10... Bb7 11. a3
Be7 12. Qd2 f5 (12... d5 13. Nb5 Na6 14. O-O-O Qd7 $17) 13. O-O-O $11 (13. d5
$14) 13... f4 14. Bf2 Bf6 15. d5 (15. h4 $14) 15... Na6 16. Ne4 Bg7 (16... Bxd5
17. Nxf6+ Qxf6 18. Nc3 Bc6 19. Bd4 Qf8 20. Bxh8 Qxh8 21. h4 $16 {Komodo13}) 17.
N2c3 e5 18. d6 $18 {immobilizes the Bl position} c6 19. h4 Nc5 20. hxg5 (20.
Bxc5 bxc5 21. hxg5 hxg5 22. Rxh8+ Bxh8 23. Nxc5 $18) 20... Nxe4 21. Nxe4 hxg5
22. Rxh8+ Bxh8 23. Rh1 Kf7 24. Qd3 c5 25. Rh5 (25. Nxc5 $1 Qf6 (25... bxc5 26.
Qf5+ Bf6 (26... Qf6 27. Qxd7+) 27. Rh7+ Kf8 28. Rxd7 $18) 26. Nxb7 Qe6 27. Be1
Bg7 28. Bc3 Rb8 29. Rh7 Rxb7 30. Qe4 Rb8 31. Bxe5 Rg8 32. Kd2 $18 {Komodo13})
25... Bxe4 26. Qxe4 Ke6 (26... Bg7 27. g4 a6 28. Qd5+ Kg6 29. a4 a5 30. Be1 $18
{Komodo13- Wh will break in at some point}) 27. g3 (27. Rh6+ Bf6 28. Qg6 Rc8
29. Qxg5 $18 {Komodo13}) 27... Kxd6 28. gxf4 (28. Rh7) 28... exf4 $11 29. Qb7
Bf6 30. Rh6 Ke6 (30... Rb8 31. Qxa7 Ke6 $11) 31. Qe4+ $18 Kf7 32. Rh7+ (32.
Qg6+ $1 Kf8 (32... Ke6 33. Qxg5) 33. Qf5 Kf7 34. Rh7+ Kf8 35. Qg6 Qe7 36. Rxe7
Bxe7 37. Qf5+ Ke8 38. Qd5 Rc8 39. Qg8+ Bf8 40. Qxg5 $18 {Komodo13}) 32... Bg7
33. Be1 (33. Qe5 Qf6 34. Qd5+ Kg6 35. Qe4+ Kf7 36. Qxa8 $18 {Komodo13}) 33...
d5 34. Qf5+ (34. Qe5 Qg8 35. Qxd5+ Kg6 36. Qe4+ Kf7 37. Bc3 $18 {Komodo13})
34... Kg8 35. Rh1 $11 (35. Rh5 $14) 35... Qf6 $2 (35... Qd6 $11) 36. Qh7+ $2 (
36. Qxd5+ Qf7 37. Qxa8+ Qf8 38. Qd5+ Qf7 39. Qd8+ Qf8 40. Qxg5 $18 {Komodo13})
36... Kf7 $19 37. Qd3 Qxb2+ 38. Kd2 Qd4 (38... Qe5) 39. Qxd4 Bxd4 40. Kd3 Rh8
41. Rf1 Rh2 (41... Rh3) 42. Bd2 Rf2 43. Rxf2 Bxf2 44. c4 Ke6 (44... d4) (44...
Be3) 45. cxd5+ Kxd5 46. Bc3 Bd4 0-1

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.12"]
[Round "3.5"]
[White "Williams, Duncan"]
[Black "Jones, Martin C"]
[Result "1/2-1/2"]
[ECO "B41"]
[WhiteElo "1793"]
[BlackElo "1746"]
[Annotator "kemen"]
[PlyCount "50"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,50,80,37,103,100,50,22,39,22,102,69,81,75,71,42,95,78,57,-37,-31,-22,
-19,-48,12,-10,22,-2,19,1,11,21,21,-3,-7,-53,-27,-73,-72,-75,-93,-75,-27,-22,
11,4,5,-57,-44,0,0,0,0]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Be2 (5.
Nc3) (5. Bd3) 5... Qc7 6. O-O Nf6 (6... Nc6) 7. Qd3 (7. Nc3) 7... b5 (7... Nc6)
(7... d6) 8. a4 $14 {Cloud Engines} b4 9. Bd2 (9. Bg5 Bb7 10. Bxf6 gxf6 11. Nd2
Nc6 12. Nxc6 Bxc6 13. Bf3 h5 14. Rfe1 h4 $11 {David Bordier-Budin, RCCA ch
email 2013,1/2-1/2}) 9... Bb7 10. f3 (10. Bf3 $11) 10... Nc6 (10... d5 $17) 11.
Be3 (11. Nxc6) 11... Be7 (11... d5) (11... Bd6) 12. Nd2 O-O 13. f4 Rac8 14.
Rac1 d5 15. e5 Nxd4 (15... Ne4 $11) 16. Bxd4 Ne4 17. c4 (17. Qe3 Bc5 $11 {
Komodo13}) 17... bxc3 18. Nxe4 (18. bxc3) 18... dxe4 19. Qxc3 Qd7 $17 20. Qe3
Rxc1 (20... Qxa4 $17) 21. Rxc1 Rc8 22. Rxc8+ Qxc8 23. g3 Bb4 24. Bc3 Bc5 25.
Bd4 Bb4 (25... Bxd4 26. Qxd4 Qc1+ 27. Qd1 $11) 1/2-1/2

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.12"]
[Round "3.6"]
[White "Vesz, Marcell"]
[Black "Jones, Huw"]
[Result "1/2-1/2"]
[ECO "A20"]
[WhiteElo "1561"]
[BlackElo "1642"]
[Annotator "kemen"]
[PlyCount "24"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,24,31,-24,-29,-33,-32,-32,-32,-2,-23,-7,21,27,10,10,34,15,15,25,35,0,
7,2,0,10,19]} 1. c4 e5 2. g3 Nf6 3. Bg2 Bc5 (3... d5) (3... c6) (3... Nc6) 4.
Nc3 O-O 5. e3 c6 (5... Nc6) (5... Re8) 6. Nge2 d5 7. cxd5 cxd5 8. d4 exd4 9.
exd4 (9. Nxd4) 9... Bb6 (9... Bb4) 10. O-O h6 (10... Nc6) 11. Nf4 Bg4 (11...
Be6 12. Nxe6 fxe6 13. Bh3 Qd6 14. Bf4 Qd7 15. Re1 {Halaj-Vasko, Klatovy op
1997,1/2-1/2}) (11... Nc6 12. Be3 Be6 13. Nxe6 fxe6 14. Na4 Ne4 15. Nxb6 axb6
16. Qg4 Qf6 17. Bxe4 dxe4 18. Qxe4 {Florendo-Catequista,PHI National games,
Dumaguete City,2012, 1-0}) 12. Qd3 Nc6 (12... Nc6 13. h3 $14) 1/2-1/2

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.12"]
[Round "3.7"]
[White "Philpin, Les"]
[Black "Stuart, Neil"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1675"]
[BlackElo "1660"]
[Annotator "kemen"]
[PlyCount "47"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,47,27,28,32,30,24,20,49,42,31,18,47,35,26,19,44,12,28,-19,24,-16,-10,
-15,8,-16,-24,-16,15,-35,29,2,82,97,89,48,101,96,134,92,90,-32,-23,-28,124,171,
208,208,399,176]} 1. d4 Nf6 2. Nf3 d5 3. Bf4 g6 4. e3 Bg7 5. Nbd2 Nbd7 6. c3 (
6. Bd3) (6. h3) 6... O-O 7. Be2 c5 8. Qc2 a6 9. Ne5 (9. h4 b5) 9... b5 10. h4
Qb6 (10... Nxe5 {Stockfish10} 11. Bxe5 cxd4 12. exd4 Qb6 13. h5 Bb7 {
Stepa-Raus, Muensterland Verbandsklasse 2004,0-1}) 11. h5 cxd4 (11... Nxe5 12.
Bxe5 cxd4 13. exd4 Nxh5 14. Bxh5 Bf5 15. Qd1 Bxe5 16. dxe5 gxh5 17. Qxh5 Bg6
18. Qh4 $11 {Stockfish10}) 12. exd4 Nxe5 13. Bxe5 Bf5 14. Qd1 Rac8 (14... gxh5)
15. a4 (15. hxg6 hxg6 16. Kf1 $11) (15. h6 Bh8 16. O-O Nd7 $11) 15... Qe6 (
15... b4 $11) 16. hxg6 fxg6 17. Nf3 (17. axb5 axb5 18. Bxb5 $14 {Stockfish10})
17... Ne4 (17... Be4) 18. Qc1 h5 (18... Bf6 19. axb5 axb5 20. Bxb5 $14) 19.
Bxg7 Kxg7 20. Ng5 Nxg5 21. Qxg5 Bg4 (21... b4 22. Rxh5 bxc3 23. bxc3 Rxc3 24.
Kf1 Qf6 $11 {Stockfish10}) 22. f3 $18 Rf5 (22... Bf5 23. Rxh5 Qf6 24. Kd2 b4
25. Bxa6 $18 {Stockfish10}) 23. Qd2 Rcf8 24. O-O-O $18 1-0

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.12"]
[Round "3.8"]
[White "Chung, Daniel"]
[Black "Parri, Deio"]
[Result "1-0"]
[ECO "D43"]
[WhiteElo "1434"]
[BlackElo "1659"]
[Annotator "kemen"]
[PlyCount "44"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,44,69,27,39,-48,-4,31,30,8,40,14,44,23,19,30,35,32,60,40,45,29,54,16,
52,54,77,71,78,61,66,57,26,23,11,1,28,2,12,6,6,16,9,-12,375,369,570]} 1. d4 d5
2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 Be7 (5... h6) (5... Nbd7) (5... dxc4 {
main lines}) 6. cxd5 (6. e3 {back to mainstream Queen's Gambut}) 6... cxd5 {
Bl has to watch being caught with inferior piece placement in this pawn
structure- especially the QB} (6... exd5 {main, a bit more unbalanced}) 7. e3
O-O 8. Bd3 Nbd7 (8... Nc6) 9. O-O a6 10. a4 (10. Rc1) 10... Re8 {5-0} (10... b6
{26 games, though still 74% for Wh}) (10... h6 11. Bh4 {29 games, 64% for Wh})
11. Bc2 $146 (11. Qc2) (11. Ne5) 11... Nf8 12. Qd3 N6d7 13. Bxe7 (13. h4 $5)
13... Qxe7 14. e4 {this gives away Wh's advantage} (14. a5 $16) (14. Rfc1 $14)
14... dxe4 15. Qxe4 Nf6 16. Qe2 Bd7 $11 {Bl is getting his pieces into play ,
with a solid K side; while wh has left himself with a isolated d pawn} 17. Rfe1
Bc6 18. Rad1 Bd5 (18... Qb4 $15) (18... Rac8 $15) 19. Nxd5 Nxd5 20. Bb3 Red8
21. Qe4 Rd6 $2 (21... Qb4 22. Qd3 Rac8 $11 {Stockfish10}) 22. Bxd5 $18 Rxd5 1-0

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.12"]
[Round "3.9"]
[White "Wells, Thomas"]
[Black "Szakmany, Bence"]
[Result "1-0"]
[ECO "A30"]
[BlackElo "1515"]
[Annotator "kemen"]
[PlyCount "101"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,101,27,-17,63,0,18,19,11,16,5,14,22,28,47,12,10,-6,20,35,24,-19,28,24,
32,6,20,-1,18,1,47,36,60,57,57,57,61,56,88,87,81,89,89,77,81,71,74,69,41,47,85,
90,81,97,94,96,159,110,117,106,117,124,120,128,191,192,209,209,224,231,219,172,
176,150,162,162,166,159,159,160,206,205,230,104,260,259,252,252,256,246,227,
221,240,226,251,258,288,262,404,424,452,435,474,488]} 1. c4 c5 2. g3 g6 3. Bg2
Bg7 4. Nf3 Nc6 5. O-O e6 6. Nc3 d5 (6... Nge7) 7. d3 (7. cxd5 exd5 8. d3 Nge7 {
187 games}) 7... Nge7 8. cxd5 Nxd5 (8... exd5 {main}) 9. Nxd5 (9. Bd2) 9...
exd5 {4 Bl wins, 2 draws} 10. Qc2 Qb6 (10... b6 $15 {Cloud Engines ; 0-2}) 11.
Be3 d4 12. Bf4 Nb4 13. Qc1 O-O (13... Be6 14. Nd2 Nd5 $11 {Komodo13}) 14. a3
Na6 (14... Nd5 $11 {looks a more natural move}) 15. Nd2 $16 Be6 16. Nc4 Bxc4
17. Qxc4 Rfe8 18. Rfe1 Nc7 {on its way to find a better home than a6} 19. b4
Ne6 20. bxc5 Qxc5 21. Qxc5 Nxc5 22. Bd6 (22. Rab1 $16 {Komodo13}) 22... Rac8
23. Bxc5 Rxc5 24. Bxb7 $14 Rc2 (24... Bf8 $14 {the B needs a fresh diagonal
for active service}) 25. Bf3 Rb8 26. Reb1 Rxb1+ 27. Rxb1 Ra2 28. Rb8+ (28. Rb7
Rxa3 29. Bd5 $18 {Komodo13}) 28... Bf8 29. Rd8 Rxa3 30. Rxd4 a5 31. Rd7 a4 (
31... f5 {the K needs a bit of escape space} 32. Bd5+ Kh8 33. Rf7 Bb4 34. Kg2)
32. Bd5 $18 Ra1+ 33. Kg2 a3 34. Rxf7 Rd1 35. Ra7+ (35. Kf3) (35. f4) 35... Kh8
36. Bc4 Rd2 37. Kf3 Bc5 38. Ra8+ (38. Ra5 Bb4 39. Ra4 Bc5 40. e3 $18 {Komodo13}
) 38... Kg7 39. e3 Rb2 40. d4 (40. g4) 40... Bf8 41. e4 (41. Ra7+ Kh8 42. h4)
41... Rc2 (41... Rb4 42. Ra7+ (42. Bd5 Rxd4 $16) 42... Kh8 43. Rc7 Ra4 44. e5
a2 45. Bxa2 Rxa2 46. d5 $16 {Komodo13}) 42. Ra4 (42. Ra7+ Kh8 43. Bd3 Rc3 44.
Ke3 $18) 42... Rc3+ 43. Kf4 Rc2 44. f3 (44. Ke3) 44... Rxh2 45. e5 (45. Ra7+)
45... Rd2 46. Ke4 Rb2 47. Ra7+ Kh8 48. e6 (48. d5 {advance the pawns on the
oposite colour of the B, avoids any blockade- is a useful principle, though
here the tactics work well}) 48... Rb6 49. e7 (49. d5) 49... Bxe7 50. Rxe7 Ra6
51. Ba2 (51. d5 a2 52. Bxa2 Rxa2 53. d6 {works as well}) 1-0

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.12"]
[Round "3.10"]
[White "Probert, Malcolm"]
[Black "James, Lucas"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "1541"]
[BlackElo "1515"]
[Annotator "kemen"]
[PlyCount "70"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. c4 d6 6. d4 e5 $6 {too early here,
only works in lines where Wh has a pawn on e4, so that Bl can take on e4 &
have the B looking at e5} (6... Nbd7) (6... Nc6) (6... c6) (6... c5 {main lines
}) 7. dxe5 dxe5 8. Nxe5 Qe7 (8... Qxd1 9. Rxd1 {7-0}) 9. Nf3 (9. Nd3 $16 {
Cloud Engines4-0}) 9... Nc6 (9... Ne4 {gives Bl a bit of play for the pawn})
10. e3 {creates unnecessary problems for Wh ; locks in QB & QR & weakens the
wh squares} (10. Nc3 Rd8 11. Qb3 $16 (11. Qa4 $16)) 10... Bg4 (10... Rd8 11.
Nd4 (11. Qa4 Bd7 $15 (11... Ne4 $15)) 11... Ne5 12. Qe2 c5 13. Nc2 Be6 14. Nba3
Nc6 $11 {Stockfish10}) 11. h3 (11. Qb3 Rab8 (11... b6 12. Bd2 Ne4 13. Bc3 Nxc3
14. Nxc3 Rad8 15. Nd5 Qd6 16. Qa4 $14) (11... Ne4 12. Qxb7 Qd7 13. Qb5 Rab8 14.
Qd5 Nd6 15. c5 Nb4 16. Qd1 Ne4 17. Qxd7 Bxd7 $11 {Wh's Q side is entirely
undeveloped}) 12. Qa3 Qxa3 13. Nxa3 Rfd8 $11) 11... Be6 12. Qe2 Na5 (12... Rad8
$11 13. b3 (13. Nc3 Qb4 14. Nd2 Ne5 15. Nb5 c6 16. Nd4 Bxc4 $11) 13... Qd7 14.
Bb2 (14. Kh2 Ng4+ $19) 14... Bxh3 $11) 13. b3 $16 Rad8 14. Bb2 Qd7 15. Nd4 (15.
Ne5 $18) (15. Ng5 $18) 15... Bxh3 $11 16. Nc3 Bxg2 17. Kxg2 Rfe8 (17... Nc6 $11
) 18. Rad1 Qe7 19. Ncb5 (19. Nf3 $14) 19... a6 (19... Ne4 $11) 20. Ba3 (20. Nc3
) 20... Qe4+ $17 21. f3 Qxe3 (21... Qe5 22. Nc3 c5 23. f4 Qxe3 24. Qxe3 Rxe3
25. Nde2 Rde8 $17 {Stockfish10}) 22. Qxe3 Rxe3 23. Nxc7 (23. Kf2 Re5 24. Nxc7
Rd7 25. Na8 Re8 26. Nb6 Ne4+ 27. fxe4 Rxd4 $15 {Stockfish10}) 23... Rc8 (23...
Rd7 $1 24. Kf2 (24. Na8 Nxc4 25. Bc1 Re8 26. bxc4 Red8 27. Be3 Rxa8 $17) 24...
Nxc4 25. Bc1 Ree7 26. Nxa6 Ne5 27. Nc5 Rd5 28. Na4 Red7 29. Nb6 Rxd4 30. Nxd7
Rxd7 31. Rxd7 Nexd7 $17 {Stockfish10}) (23... Nxc4 24. Bc1 Nd2 25. Rxd2 Re7 26.
Nxa6 bxa6 27. Nc6 Rxd2+ 28. Bxd2 Re6 $11 {Stockfish10}) 24. Kf2 (24. Nc2 Rc3 (
24... Nxc4 25. bxc4 Rc3) 25. Rf2 Nxc4 26. bxc4 Rxc4 (26... Rxa3 27. Nxa3 Rxc7
28. Rc2 $14) 27. Bd6 Bf8 28. Ne3 R4xc7 29. Bxc7 Rxc7 30. Rc2 Re7 31. Nd5 Nxd5
32. Rxd5 $14 {()tockfish10}) 24... Re5 (24... Nxc4 $1 25. Bc1 Re7 26. Nxa6 bxa6
27. bxc4 Rxc4 28. Ne2 Re8 $17 {Stockfish10}) 25. Bd6 $16 Rh5 (25... Rg5) 26. g4
Rh2+ $2 (26... Rg5) 27. Bxh2 Nc6 28. Nxc6 bxc6 29. Rd3 h5 30. gxh5 gxh5 31.
Rfd1 Nh7 32. Rd8+ Rxd8 33. Rxd8+ Bf8 34. Bd6 Kg7 35. Bxf8+ Nxf8 1-0

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.13"]
[Round "4.1"]
[White "Parsons, David"]
[Black "Miga, Tomasz"]
[Result "1/2-1/2"]
[ECO "C03"]
[WhiteElo "1691"]
[BlackElo "1759"]
[Annotator "kemen"]
[PlyCount "49"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 Be7 5. O-O O-O 6. Nbd2 c5 (6... b6) 7. b3
Nbd7 (7... Nc6 8. a3 Qc7 9. Bb2 cxd4 10. exd4 Bd6 {Parsons-Davis, Welsh
Seniors 2017,1-0 ; cf also Parsons-Penny, rd3 West Wales Major 2019,1-0 with 8.
..Nd7}) 8. Bb2 b6 9. Ne5 Bb7 10. f4 Nxe5 (10... Ne4 {main,262 games}) (10...
cxd4 11. exd4 Ne4 {scores better for Bl; 7 Wh wins, 9 draws , 11 Bl wins}) 11.
fxe5 Ne4 12. Bxe4 (12. Nxe4 dxe4 13. Bc4 {18 Wh wins, 1 draw,3 Bl wins}) 12...
dxe4 13. Qg4 {7 Wh wins,1 draw,1 Bl win} Qd5 $146 (13... Bg5 14. Rae1 $14 {
main,4 Wh wins, 1 draw,1 Bl win}) (13... Rc8 14. c4 $11 {2-0; incl
Smyslov-Mariotti, Venice 1974,1-0}) (13... cxd4 14. Bxd4 Rc8 15. c4 $11 {
3-0, incl Smyslov game}) 14. Rf4 (14. c4 Qc6 15. Rf4 $16 {Cloud Engines}) 14...
cxd4 (14... f5 $11 {Stockfish10}) 15. Bxd4 $16 Qd8 16. Nxe4 Bxe4 17. Rxe4 g5 $2
{to keep the R in ( but it doesn't) , though it severely weakens the K side} (
17... Qc7 18. c3 Bc5 19. Qh3 $16 {Stockfish10}) 18. Rf4 $18 (18. Rf1 $18) (18.
c4 $18) 18... h5 19. Qg3 g4 20. Rf6 {right idea, but too early} (20. Rff1 $18
Qc7 21. c4 Bg5 22. Qf2 Kg7 23. h3 $18 {Stockfish10}) (20. Rxg4+ $1 {Bl is
temporarily playing without his QR} hxg4 21. Qxg4+ Bg5 (21... Kh7 22. Qh5+ Kg7
23. Rf1 f5 24. exf6+ Rxf6 (24... Bxf6 25. Qg5+) 25. Rf4 e5 26. Bxe5 Qd2 27.
Qg5+ Kf7 28. Bxf6 Qxe3+ 29. Rf2 Qxg5 30. Bxg5+ $18) 22. Rf1 Kg7 (22... Kh7 23.
Rf6) 23. Rf6 Rh8 24. Qxg5+ Kf8 25. h4 $18 {Bl still without the QR being much
use}) 20... Bxf6 21. exf6 Qd5 $17 22. Rf1 Qg5 (22... Qe4 23. Qh4 Qg6 $17 {
Stockfish10}) 23. h4 Qg6 24. c4 Rfd8 25. Qe5 (25. Qe5 Rac8 26. g3 $15 {but the
Bl Rs have virtually Zero activity}) 1/2-1/2

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.13"]
[Round "4.2"]
[White "Di-Vetta, Andrew"]
[Black "Williams, Stephen"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "1812"]
[BlackElo "1675"]
[Annotator "kemen"]
[PlyCount "100"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,100,80,48,57,75,84,73,114,34,20,52,68,42,33,-7,44,-4,2,-13,-29,-37,8,
-33,-11,-12,10,-116,-116,-96,-96,-114,-86,-96,-96,-133,-104,-143,-117,-120,
-114,-117,-125,-144,-131,-148,-148,-149,-127,-205,-136,-151,-114,-177,-177,
-160,-142,-170,-101,-110,-101,-97,-82,-90,-90,-91,-92,-98,-89,-94,-89,-86,-94,
-95,-143,-170,-176,-186,-186,-220,-220,-220,-230,-239,-247,-267,-248,-280,-293,
-295,-313,-313,-296,-456,-721,-819,-872,-872,-906,-906,-899,-1027,-1085]} 1. e4
c6 2. d4 d5 3. e5 c5 4. c3 (4. dxc5 {main}) 4... Nc6 5. Nf3 Bg4 6. Be2 e6 {
Bl has a superior French} 7. O-O Qb6 (7... Nge7) 8. Qa4 (8. dxc5) (8. Nbd2 {
main lines}) 8... Bxf3 (8... Bh5 9. Nbd2 cxd4 10. cxd4 Nge7 11. Rd1 Nf5 12. Nb3
Be7 13. h3 Nh4 14. g4 Nxf3+ 15. Bxf3 Bg6 16. Be3 O-O {Tomanikova-Sedlakova,
SVK ch women, Trencin 1991,0-1}) 9. dxc5 (9. Bxf3 cxd4 10. cxd4 Qxd4 11. Qxd4
Nxd4 {0-9 in main databases, though with 1 draw in Basterfield- O Bennett,
Dyfed Minor 2012,1/2-1/2}) 9... Bxc5 (9... Qc7 10. Bxf3 Bxc5 $11 {Komodo13})
10. Bxf3 Qc7 (10... Nge7 11. Nd2 O-O 12. Nb3 Nxe5 13. Be2 Bd6 14. Be3 Qc7 $17 {
Steiner-Silber, GER ch U25, Oberhof 2013,1/2-1/2}) 11. b4 (11. c4 $11 {Cloud
Engines}) 11... Bb6 $15 12. Bf4 Nge7 13. Na3 O-O 14. Nb5 Qb8 $19 15. Rfe1 Ng6 (
15... a6 16. Na3 Bc7 $19 {Komodo13}) 16. Bg3 Ncxe5 17. Be2 Qd8 18. Bh5 Nc4 (
18... Nd3) 19. Qd1 a6 20. Nd4 Qf6 {Bl is a solid pawn up, plus Wh has a
weakness on c3} 21. Rc1 Nf4 22. Bxf4 Qxf4 23. g3 Qf6 24. Kg2 Rac8 25. f4 Bxd4 (
25... Nd6 26. Bf3 Bxd4 27. Qxd4 Qxd4 28. cxd4 Nf5 {wins the d pawn}) 26. Qxd4
Qxd4 27. cxd4 g6 (27... Ne3+ 28. Kf2 Nc2 {Komodo13}) 28. Be2 Nd6 (28... Ne3+
29. Kf2 Nc2 30. Rg1 Nxb4 31. a4 a5 $19) 29. g4 Rxc1 30. Rxc1 Rc8 31. Rxc8+ Nxc8
{it takes longer now as Wh's B is useful on both sides of the board} 32. a4 Nd6
33. Bd3 h6 34. Kf3 Kf8 35. h4 Ke7 36. h5 (36. g5 $17 {better, as the resultant
h pawn is a liability; a N coming to f5 can then simply be removed & the Bl K
has no entry}) 36... gxh5 37. gxh5 Kf6 $19 38. Kg4 Nc4 39. b5 axb5 40. axb5
Ne3+ 41. Kf3 Nf5 42. b6 (42. Bxf5 Kxf5 43. b6 f6 {zugzwang}) 42... Nxd4+ 43.
Ke3 Nf5+ 44. Kf3 Nd6 45. Ke3 Nc4+ (45... e5) 46. Bxc4 dxc4 47. Kd4 Kf5 48. Kxc4
Kxf4 49. Kc5 Ke5 (49... e5 {as winning the b pawn takes too long for Wh}) 50.
Kc4 f5 {requires no calculation} 0-1

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.13"]
[Round "4.3"]
[White "Pe, Philip"]
[Black "Philpin, Les"]
[Result "1-0"]
[ECO "C03"]
[WhiteElo "1789"]
[BlackElo "1675"]
[Annotator "kemen"]
[PlyCount "51"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

1. e4 e6 2. d4 d5 3. Nd2 Be7 {a useful waiting move} 4. Ngf3 {in the normal
Tarrasch, this N can go to e2, leaving f3 free for the other N to come to
protect the d4 pawn} Nf6 5. e5 Nfd7 6. Bd3 c5 7. c3 c4 $6 {takes all the
tension from the centre, giving Wh a free hand on the K side} (7... Nc6 8. O-O
g5 (8... Qb6) (8... cxd4 9. cxd4 Qb6 10. Re1 {is the Korchnoy Gambit})) 8. Bb1
(8. Bc2 {3-1}) 8... Nc6 9. O-O (9. Ng1 b5 10. a3 a5 11. f4 O-O 12. Qc2 g6 13.
Ndf3 {Roos-Jorke, Goch op 2014,1-0}) 9... Nf8 (9... b5 10. Re1 b4 11. Nf1 Qb6
12. Ng3 Rb8 13. Nh5 O-O 14. Qc2 g6 15. Bh6 Re8 16. Bc1 $11 {Campean-Bilic, EU
girls U18, Mamaia 2017,1-0} (16. Qd2 $18 {Stockfish10})) 10. a4 {gaining space
on the Q side, just in case Bl decides to put hids K there} (10. b4) 10... Na5
11. b4 Nc6 (11... cxb3 12. Nxb3 Nc4 13. Nfd2 $16 {Stockfish10}) 12. Ne1 (12.
Re1 $18) (12. Bc2 $18) 12... Ng6 13. f4 (13. Qh5 $18) (13. g3 $18) 13... h5 14.
Ra2 (14. b5 Nb8 15. Bxg6 fxg6 16. Qc2 $18 {Stockfish10}) (14. Ndf3 Nh4 15. Nxh4
Bxh4 16. Nf3 Be7 17. Ng5 $18 {Stockfish10}) 14... Bd7 15. f5 (15. g3 Nf8 16.
Ng2 g6 17. Nf3 Qc7 18. Ng5 $18 (18. Ne3 $18 {Stockfish10})) 15... Nf8 (15...
exf5 16. Bxf5 Nh4 17. Bxd7+ (17. Bb1) 17... Qxd7 18. Ndf3 $18 {Stockfish10})
16. Qf3 $18 (16. b5 Na5 17. f6 $18) (16. f6 $18 {Stockfish10}) 16... Qc7 17.
Ba3 Bg5 18. Qg3 Nh7 19. fxe6 (19. Ndf3 Bh6 20. b5 Na5 21. Nh4 O-O-O 22. Bd6 Qb6
23. Raf2 $18 {Stockfish10}) 19... Bxe6 20. Bxh7 Bxd2 21. Bf5 (21. Qxg7) (21.
Rxd2) 21... Bxf5 22. Rxd2 g6 23. b5 Ne7 24. Qg5 (24. Nc2 Be6 25. Ne3 {Bl is
being attacked across the whole board & his Rs are standing unused}) 24... Rh7
25. Bxe7 Qxe7 26. Rxf5 1-0

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.13"]
[Round "4.4"]
[White "Pinch, David"]
[Black "Williams, Duncan"]
[Result "1-0"]
[ECO "E00"]
[WhiteElo "1842"]
[BlackElo "1793"]
[Annotator "kemen"]
[PlyCount "47"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,47,40,40,21,0,-14,3,-10,-21,2,12,22,0,44,17,17,52,27,-79,-38,-13,4,
-37,0,0,0,0,206,202,223,238,231,164,185,160,190,254,251,310,310,328,325,314,
409,437,413,434,427,468]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 c6 (4... dxc4 {
Open Catalan _R (other comments by David)}) 5. Bg2 dxc4 {[Houdini W0.44 best
b5 W0.07] Nc3 scores 71% wins for white.[ trying to hold on to the pawn,;
usually in the Open Catalan, Bl aims for a rapid c5, here a tempo down _R]} 6.
Qc2 (6. O-O) (6. Ne5 {recommended by Avrukh 2015:35 _R}) (6. a4) (6. Nc3 {
all more frequent than the text _R}) 6... Bb4+ (6... b5 7. O-O Bb7 {37% for Wh
_R}) 7. Bd2 Bxd2+ {It is normal to withdraw the bishop back to e7, the purpose
of the check being to misplace white's bishop. [ though not here, where Bl is
playing to keep hold of the c4 pawn_R]} 8. Nbxd2 {[Houdini W0.53]. [4 Wh wins,
1 Bl win _R]} b5 9. Ne5 {[Houdini level best b3 W0.65] This is the move to
refute black's play, but not now! White has left the d-pawn hanging.} (9. a4 {
3 Wh wins,2 draws _R}) (9. b3 $16 {Cloud Engines}) 9... Bb7 (9... Qxd4 {
a little risky} 10. Nxc6 Qb6 11. Ne7 Bb7 12. Nc8 Bxc8 13. Bxa8 Nc6 14. Ne4 Nd4
15. Nxf6+ gxf6 16. Qe4 e5 17. O-O Bh3 18. Rfd1 O-O 19. g4 Kh8 20. Kh1 Qe6 21.
Rg1 f5 $11 {Stockfish10 _R}) 10. e3 {White decides to consolidate before
trying to get the pawn back.} Nd5 {Developing would have been a better idea.} (
10... Nbd7 $11 {Stockfish10}) 11. O-O f6 12. Nef3 Nb4 $6 {Getting the knight
to d3, but this is over-ambitious. [Stockfish10- but with the aim of getting a
repetition next move _R]} 13. Qc3 Nd3 (13... Nd5 $11) 14. b3 {Now the knight
is in danger of being caught with no escape. [Stockfish10 considers that Wh is
now winning _R]} a5 15. bxc4 (15. a3 b4 16. Qxc4 Ba6 17. Qxe6+ Qe7 18. Qxe7+
Kxe7 19. axb4 Nxb4 (19... axb4 20. Nh4 $18) 20. Rxa5 $18 {Stockfish10 _R})
15... Nb4 {And the knight escapes.} 16. a3 {But not to a very good square.}
N4a6 17. Qb3 $18 {[Houdini W2.01 best Nb3 W2.37] White needs to find a move to
take the initiative. This eyes e6, threatens b5 and pins it. White also has a
planned follow-up to the obvious response. Why doesn't Houdini rate it?.} (17.
Nb3 {this and 3 other moves ( Bh3;Rfb1 & Ne1)are what Stockfish10 considers
even stronger than the text _R}) 17... b4 18. c5 {[Houdini W3.46] Creates a
perch for the knight on d6 and provides the means for getting there. Black has
made 8 pawn moves, 6 moves of the same knight, and 3 bishop moves, 2 for the
one no longer on the board. And his pieces are located passively in the corner.
} (18. axb4 Nxb4 19. c5 $18 {also possible-Stockfish10 , avoids the pawn
advance in the game _R}) 18... Qd5 {Houdini gives...Bc8 to protect the e-pawn
and then castle.} 19. Nc4 {Threatening Nd6+ picking up the bishop after the
queen swap.} a4 20. Qc2 b3 21. Qc3 Qd7 {[Houdini W5.50 best O-O W4.63] Black
is in a bad way now, punishment for his lack of development in favour of
over-ambition.} 22. Nb6 {Cashing in.} Qc7 23. Nxa8 Bxa8 24. Qc4 {[Houdini W5.
89] Black has had enough.} 1-0

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.13"]
[Round "4.5"]
[White "Jones, Martin C"]
[Black "Wells, Thomas"]
[Result "1-0"]
[ECO "E32"]
[WhiteElo "1746"]
[Annotator "kemen"]
[PlyCount "115"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,115,28,13,29,17,7,-8,17,-4,-4,-4,-11,-15,8,12,4,15,20,6,2,-11,1,1,8,5,
7,-4,0,0,79,43,87,102,112,93,127,97,184,70,113,81,41,55,109,50,72,5,-6,-91,48,
53,45,52,59,49,49,55,40,32,24,20,127,125,726,153,171,137,165,169,471,481,495,
495,520,479,532,531,629,480,474,447,404,406,427,406,501,406,503,414,939,1999,
29985,305,288,329,337,246,246,217,210,172,166,170,174,156,208,203,238,300,779,
999,1154,959,1139,1139,1405,975]} 1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. Qc2 O-O 5.
a3 Bxc3+ 6. Qxc3 Ne4 (6... b6) (6... d6) (6... d5) 7. Qc2 f5 8. Nf3 (8. Nh3)
8... b6 9. e3 (9. g3) 9... Bb7 10. Be2 (10. Bd3) 10... d6 11. b4 (11. O-O {main
}) 11... Nd7 12. Bb2 Qe8 (12... Qe7) (12... Ng5) 13. Rd1 (13. O-O Qg6 {5 Wh
wins, 4 draws, 1Bl win}) 13... Qg6 14. O-O Rae8 15. c5 (15. Qa4 {Cloud Engines}
Ndf6 16. Qxa7 Rb8 17. d5 exd5 18. cxd5 Qf7 19. Bxf6 Qxf6 20. Ba6 Bxa6 21. Qxa6
Ra8 22. Qc4 Qc3 23. Rc1 Qxc4 24. Rxc4 Rxa3 25. Rxc7 {Quintiliano Pinto- Leitao,
American Continental, Sao paulo 2019,1-0}) 15... Ndf6 (15... bxc5 16. dxc5 Bd5
17. c6 Ndf6 18. Bc4 Ng5 19. Bxd5 Nxd5 20. Nxg5 Qxg5 21. g3 h5 $11 {
Dettmann-Samborska, MK Cafe Cup, Koszalin 1997,1/2-1/2}) (15... Bd5 $11 {
Komodo13}) 16. c6 $16 Bc8 17. Nd2 (17. b5) 17... e5 18. dxe5 dxe5 (18... Nxd2
19. Rxd2 dxe5 20. Rfd1 $16 {Komodo13}) 19. Nxe4 (19. Nf3 $18 {Komodo13- wins
the e pawn}) 19... Nxe4 (19... fxe4) 20. Bc4+ (20. Rd7 {Komodo13} Bxd7 21. cxd7
Rd8 22. Rd1 c6 23. Bxe5 b5 24. f3 Qe6 25. Qb2 Nf6 26. Rd6 Qe7 27. Rxc6 Nxd7 28.
Bd4 $16 {the 2Bs are often better than R &N, even in an ending}) (20. Rd5)
20... Kh8 21. f3 Ng5 22. Rd5 Nf7 23. Rfd1 Qxc6 (23... Qh6 $14) 24. Qd3 (24.
R5d2 Qg6 25. Bb5 Re7 26. Bd7 Qh6 27. Bc1 Kg8 28. Bxc8 Rxc8 29. Qxf5 Qe6 $14 {
Komodo13}) 24... Nd6 (24... Be6 $17 25. b5 Qa8 26. Qb3 Nd6 27. Bxe5 Nxc4 28.
Qxc4 Rf7 29. R1d4 Bxd5 30. Qxd5 Qxd5 31. Rxd5 Rff8 32. Bxc7 Rxe3 $19 {Komodo13}
) 25. Bb3 (25. Rc1) 25... Be6 (25... Nf7 $11) 26. Rxe5 (26. b5 Qd7 27. Rxe5 $16
{Komodo13}) 26... Bxb3 27. Rxe8 Rxe8 28. Qxb3 b5 $14 (28... Re7 $14) 29. Qd3
Nc4 30. Bd4 a6 (30... Qe6 $11) 31. Qxf5 $16 Rd8 $2 32. Qf7 (32. Bxg7+ Kxg7 33.
Rxd8 $18) (32. Qg5 Qf6 33. Qxf6 gxf6 34. Bxf6+ Kg8 35. Rxd8+ $18) 32... Ne5 33.
Qe7 (33. Qh5) 33... Re8 34. Qg5 $18 Qd5 35. f4 h6 36. Qg3 Qb3 37. Re1 (37. Rf1)
37... Re7 38. Bxe5 Qxa3 39. Rd1 Qb3 40. Rf1 (40. Rd8+) (40. Qf3) 40... Qxb4 41.
f5 (41. Qg6) 41... Rf7 42. Qg6 Qf8 43. Rf3 (43. f6 $1 $18) (43. Qxh6+ Kg8 44.
Qg5 $18) 43... Kg8 44. f6 c5 45. fxg7 Qe7 46. Qxf7+ (46. Qxh6 Rxg7 47. Bxg7
Qxg7 48. Qe6+ Kh8 49. Qe8+ Qg8 50. Qh5+ Kg7 (50... Qh7 51. Rf8+ Kg7 52. Rf7+
Kg8 53. Qxh7#) 51. Qg5+ Kh8 52. Qh6+ Qh7 53. Rf8#) 46... Qxf7 47. Rxf7 Kxf7 48.
Kf1 a5 49. Bd6 (49. Ke2 {the BlQ side pawns are easily stopped}) 49... c4 50.
Ke1 (50. Bf8) 50... Kxg7 51. e4 Kf6 52. e5+ Ke6 53. g4 Kd5 54. Kd1 Kd4 55. e6
Kd3 56. Be5 (56. e7) 56... b4 57. e7 c3 58. Bxc3 (58. e8=Q) 1-0

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.13"]
[Round "4.6"]
[White "Vesz, Marcell"]
[Black "Horrell, Stephen"]
[Result "0-1"]
[ECO "C02"]
[WhiteElo "1561"]
[BlackElo "1696"]
[Annotator "kemen"]
[PlyCount "108"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,108,19,29,41,43,49,15,25,-3,-4,14,-16,3,10,7,1,-17,-12,-4,-4,-5,-2,-9,
-19,-15,-17,-36,2,1,7,-21,-25,-76,-69,-98,-97,-77,-67,-155,-51,-82,-42,-36,-36,
-86,-10,-4,3,-3,12,-89,-94,-137,-90,-73,-79,-120,-124,-141,-142,-129,-152,-167,
-203,-208,-202,-200,-200,-200,-200,-200,-95,-90,-54,-54,-40,-101,-67,-77,-74,
-73,-79,-55,-79,-122,-116,-122,-116,-122,-141,-324,-311,-383,-392,-414,-450,
-450,-445,-476,-531,-536,-541,-538,-547,-551,-573,-573,-894,-972,-1043]} 1. e4
e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. Be2 cxd4 (6... Nge7) 7. cxd4 Nge7
8. Na3 Nf5 9. Nc2 Qb6 10. O-O Rc8 11. Rb1 (11. g4 {main}) (11. Kh1) (11. b3)
11... Nb4 12. Nxb4 Bxb4 13. Bg5 (13. Be3 O-O 14. Kh1 Rc7 15. Bd3 Bb5 16. g4
Nxe3 17. fxe3 Qa6 18. Bxb5 Qxb5 19. g5 Be7 20. h4 Rfc8 21. Rf2 Rc4 22. Nh2 Qc6
23. Qf3 Qe8 24. Ng4 {Vilar Lopez-Markowska, Wld ch women , Antwerpen 1992,1-0})
(13. g4 $11 {Cloud Engines}) 13... Be7 (13... h6 14. Bc1 Bc3 15. Bf4 Bxd4 16.
g4 Be3 17. Bxe3 Nxe3 18. fxe3 Qxe3+ 19. Kh1 Qe4 20. Rg1 Bc6 {Aparicio
Garcia-Garcia Alvarez, Asturias Primera op1998,1/2-1/2}) 14. Bxe7 Nxe7 15. Nh4
O-O $11 16. f4 (16. Qd3) 16... Rc7 $17 {Bl has enough Q side play to stop the
K side attack from becoming dangerous} 17. Kh1 Rfc8 18. Bd3 Bb5 19. f5 Bxd3 (
19... Qxd4 $19) 20. Qxd3 exf5 21. Nxf5 Nxf5 22. Qxf5 Qe6 (22... Qxd4 $17) 23.
Qf4 $11 Rc2 24. h3 (24. Rf2) 24... h6 25. Rfc1 (25. Rf2 $11 {Komodo13}) 25...
Qg6 $17 26. Rg1 Re2 (26... Rxg2 27. Rxg2 Qxb1+ 28. Rg1 Qe4+ 29. Qxe4 dxe4 $17 {
Komodo13}) 27. Qf3 Qe4 28. Rgf1 Qxf3 29. Rxf3 Rcc2 $19 30. Rg3 Red2 31. Rg4
Rxb2 32. Rc1 Rdc2 33. Re1 Re2 (33... Rxa2) 34. Rc1 Rbc2 35. Rb1 Rc7 36. Rb5 a6
37. Rxd5 Rxa2 38. Rd6 (38. Rd8+ Kh7 39. d5 Rd2 40. d6 Rc1+ 41. Kh2 h5 42. Rb4
b5 43. Ra8 Rc5 44. Rxa6 Rxe5 $17 {Komodo13}) 38... Re2 39. Rxh6 a5 40. Rd6 a4
41. Rd8+ Kh7 42. Rh4+ Kg6 43. Rd6+ Kf5 $17 {Offered draw.} 44. Rh5+ Ke4 (44...
Kf4 45. Rh4+ Kg3 46. Rg4+ Kf2 $19 {Komodo13}) 45. Rh4+ Kd3 $19 46. Rb6 a3 47.
Rb3+ Rc3 48. Rb1 a2 49. Ra1 Rb3 50. Kh2 Rb1 51. Rxa2 Rxa2 52. Rf4 Rbb2 53. Rg4
Rxg2+ 54. Rxg2 Rxg2+ 0-1

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.13"]
[Round "4.7"]
[White "Penny, Liam"]
[Black "Jones, Huw"]
[Result "1-0"]
[ECO "A08"]
[WhiteElo "1674"]
[BlackElo "1642"]
[Annotator "kemen"]
[PlyCount "51"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,51,26,26,33,23,51,37,29,8,15,-1,3,11,11,11,17,-4,2,8,10,9,39,31,10,12,
39,-18,-2,-2,41,37,37,35,108,96,86,103,128,123,118,117,147,145,168,105,100,96,
108,115,161,137,252,246]} 1. d4 Nf6 2. Nf3 c5 3. e3 e6 4. Bd3 d5 5. b3 Be7 6.
O-O O-O 7. Bb2 Nc6 8. Nbd2 (8. a3 Nd7 9. Ne5 cxd4 10. exd4 Ncxe5 11. dxe5 Nc5
12. Nc3 {Parsons-Penny, rd3, West Wales Major 2019,1-0}) 8... cxd4 9. exd4 Nb4
10. Be2 Ne4 (10... b6) (10... Qc7) 11. Nxe4 (11. a3 {1 game each,3 draws})
11... dxe4 12. Ne5 (12. Nd2 f5 13. Nc4 $11 {Cloud Engines}) 12... Nc6 13. f4 (
13. Nxc6 bxc6 14. f3 exf3 15. Bxf3 $14 {Stockfish10}) 13... Nxe5 (13... Qc7 $11
) 14. fxe5 f5 15. exf6 Bxf6 (15... gxf6 $16) 16. Bc4 $16 b5 $5 17. Bxb5 Bb7 18.
c3 Qb6 19. Bc4 Kh8 (19... Bd5 20. Ba3 $18 {Stockfish10}) 20. Ba3 Rfe8 21. Bc5
Qc6 22. Qg4 (22. Qe2) 22... e5 23. Rad1 (23. b4 $18) 23... exd4 (23... e3 24.
Rde1 $18) 24. Bxd4 Bxd4+ 25. Rxd4 Bc8 26. Qxe4 $18 1-0

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.13"]
[Round "4.8"]
[White "Probert, Malcolm"]
[Black "Chung, Daniel"]
[Result "1-0"]
[ECO "A08"]
[WhiteElo "1541"]
[BlackElo "1434"]
[Annotator "kemen"]
[PlyCount "121"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 67,67,61]} 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 {a reverse Gruenfeld}
cxd4 5. Nxd4 e5 6. Nxc6 bxc6 {this sharp line is dangerous, when a move behind;
though it has been seen in elite GM practice- 69 % for Wh} 7. O-O (7. c4) 7...
Nf6 8. c4 Be6 9. Nc3 Bb4 $2 {unusual here, though it does feature in mainline
Gruenfeld, when Bl plays c5 before 0-0. The problem is that the B is loose
with the Bl K still in the middle.} (9... Qd7) (9... Rc8) 10. cxd5 $18 (10.
Nxd5 {even stronger-Cloud Engines} Nxd5 11. Qa4) 10... cxd5 $2 {this just
drops a piece} (10... Nxd5 11. Qa4 ({Fritz13 misses the winning line here with
} 11. Nxd5) 11... Bxc3 (11... Qa5 12. Qxc6+ Ke7 13. Nxd5+ Bxd5 14. Qxd5 {
Vrchotka-Weyand,Wld Seniors, Marianske Lazne 2016,1-0}) 12. Qxc6+ Ke7 13. bxc3
{2-0}) (10... Bxd5 11. Nxd5 Nxd5 12. Qa4 O-O 13. Bxd5 cxd5 14. Qxb4 $18 {
but somehow Bl escaped in Maslennikov-Pavlov,Astrakhan op 2012,1/2-1/2}) 11.
Qa4+ {it has been played before, as Engines have previously examined this
position} Nd7 12. Qxb4 $18 a5 13. Qa4 (13. Qa3 {holds up 0-0}) 13... O-O 14.
Nxd5 {handing the piece back, though Wh retains a winning position} (14. f4)
14... Bxd5 15. Bxd5 Nb6 16. Bxf7+ Rxf7 17. Qe4 $18 Qd5 18. Qxd5 Nxd5 19. e4 (
19. Rd1) 19... Nb4 20. Bd2 Nc2 21. Rac1 Nd4 22. Kg2 Rb7 23. Bc3 (23. b3 a4 24.
b4 $18 {Stockfish10}) 23... a4 24. Bxd4 exd4 25. Rc2 Rab8 26. Rb1 Rb4 27. f3 h6
28. Kf2 {once the K comes across, Bl's initiative is at an end} Kh7 29. Ke2 g5
30. Kd3 Rf8 31. Rf2 (31. Rf1) 31... Kg6 32. b3 Rc8 33. Rc2 Rcb8 34. Rcb2 (34.
f4 axb3 35. Rxb3 (35. f5+ {keeps an extra pair of pawns on}) 35... Rxb3+ 36.
axb3 Rxb3+ 37. Kxd4 gxf4 38. gxf4 $18 {Stockfish10}) 34... Rf8 35. Ke2 Ra8 36.
a3 Rxb3 37. Rxb3 axb3 38. Rxb3 h5 39. Kd3 Ra4 40. h4 gxh4 41. gxh4 Kf6 42. f4
Kg6 43. Rb6+ Kg7 44. Rb4 (44. f5) 44... Rxa3+ 45. Kxd4 Rh3 46. e5 Rxh4 {
and the connected pawns win against the single one} 47. Ke4 (47. Kd5) 47... Rg4
48. Kf5 Kf8 49. e6 (49. Kf6 Kg8 50. Rb8+ Kh7 51. f5) 49... Ke7 50. Rb7+ (50.
Ke5) 50... Ke8 51. Rh7 (51. Ke5) 51... Rh4 52. Kg6 $2 {this should throw away
the win} (52. Ke5 {systematically forces the pawns forward} Rh2 53. Kf6 Kd8 54.
Kf7 Re2 55. f5 h4 56. f6 h3 57. e7+ Kd7 58. Rxh3 (58. Kf8)) 52... Rg4+ $2 (
52... Rxf4 53. Kxh5 (53. Rxh5 Ke7 54. Re5 Rf6+ $11) 53... Re4 {a draw with the
K in front of the pawn & here the e pawn immeditely gets swapped off}) 53. Kf5
Rh4 54. Ke5 {back on track} Kf8 55. f5 (55. e7+ Kg8 (55... Ke8 56. Ke6 Rxf4 57.
Rh8+ Rf8 58. Rxf8#) 56. e8=Q+ Kxh7 57. Qe7+ Kh6 58. Qxh4 $18) 55... Rh1 56. Kf6
Kg8 57. Rh6 (57. Rg7+ Kf8 58. Ra7 Kg8 59. Ra8+ (59. Kg6 Rg1+ 60. Kh6 Kh8 61. f6
{mating soon}) 59... Kh7 60. e7) 57... h4 58. e7 Re1 59. Rxh4 Re6+ 60. Kxe6 (
60. fxe6 {stalemate}) 60... Kg7 61. Rg4+ 1-0

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.13"]
[Round "4.9"]
[White "James, Lucas"]
[Black "Stuart, Neil"]
[Result "1-0"]
[ECO "B21"]
[WhiteElo "1515"]
[BlackElo "1660"]
[Annotator "kemen"]
[PlyCount "55"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,55,25,25,51,26,37,14,14,-5,-5,-51,-24,-66,-44,-51,-51,-45,6,13,-30,5,
-1,-32,-29,-159,-42,-54,30,30,37,-73,-73,-60,-38,-47,25,20,20,12,18,-391,0,
-268,-346,-348,-348,-350,-348,-348,-350,-350,-331,-351,285,270,305,302]} 1. e4
c5 2. d4 cxd4 3. c3 e5 4. Bc4 (4. cxd4 {main}) 4... Nf6 5. Bg5 $146 (5. Nf3) (
5. Qe2) 5... Be7 $17 {Cloud Engines} (5... h6 6. Bxf6 Qxf6 $15) 6. Nf3 Nc6 (
6... Nxe4 7. Bxe7 Qxe7 8. cxd4 Nd6 9. Bd5 exd4+ 10. Qe2 Qxe2+ 11. Kxe2 Nc6 $17)
7. O-O O-O 8. cxd4 $11 (8. Bxf6 Bxf6 9. Bd5 Ne7 (9... h6 $17) 10. cxd4 d6 (
10... exd4 11. e5 Nxd5 12. Qxd4 Bxe5 13. Qxe5 Nf6 $15) 11. h3 Ng6 (11... Nxd5
12. exd5 Re8 $17 {Stockfish10} (12... e4 13. Nfd2 Bxd4 14. Nc3 Bxc3 15. bxc3 f5
$17)) 12. Nbd2 exd4 13. Nc4 Be6 (13... Nf4 $17) 14. Nxd4 Bxd5 15. exd5 Rc8 16.
Ne3 Re8 $15 {Fakhiridou-Voulgarati, GRE ch girls U10, Kallithea 2008,1-0}) 8...
d6 (8... exd4 9. Nbd2 (9. Nxd4 Nxe4 $15) 9... d6 10. h3 Ne5 (10... Be6 $15) 11.
Bb3 d3 12. Re1 h6 13. Bf4 Ng6 14. Bh2 d5 (14... Nh5) 15. e5 (15. exd5) 15...
Nh5 16. g3 Bc5 $19 {[%eval -32767,0] Turner-Gunnarsson, Hafnarfjordur op, 1996,
1-0}) 9. Nc3 (9. dxe5 dxe5 10. Nc3 $11) 9... Bg4 10. dxe5 dxe5 11. Rc1 (11. h3
Qxd1 12. Raxd1 Bxf3 13. gxf3 $11 {Stockfish10}) 11... Nd4 12. Kh1 (12. Bxf6
Bxf6 13. Be2 Be6 $11 {Stockfish10}) 12... Bxf3 (12... Nxf3 13. Qxd8 Rfxd8 14.
gxf3 Bxf3+ 15. Kg1 h6 $19 {Stockfish10}) 13. gxf3 Nh5 14. Be3 Bg5 15. Bxg5 (15.
Rg1 $11) (15. Nd5 $11) 15... Qxg5 $17 16. Rg1 Qd8 (16... Qh4 $17) (16... Qh6
$17 {both look at the Wh K}) 17. Nd5 Nf6 (17... g6 $15) (17... Qh4 $15) 18. f4
Nxe4 19. Rg2 Rc8 20. b3 {There was a move missing from the the only scoresheet
submitted, so various moves were tried that did not interfere with the moves
recorded subsequently. This one protects the B & thus the N on d5.} (20. a3 {
a candidate, though would lose instantly to} Rxc4 $19 {removing the protection
of the N on d5.}) (20. fxe5 {would however be best according to Stockfish10,
though various pieces are hanging.} Qh4 $1 (20... Rxc4 21. Nf6+ $1 Nxf6 22.
Rxc4 Ne6 23. Qxd8 Rxd8 24. exf6 $18 {Stockfish10}) 21. Ne7+ Qxe7 22. Qxd4 b5 (
22... Qh4 23. Bxf7+ Kh8 24. Rxc8 Rxc8 25. Qe3 Rc2 $11) 23. Bxf7+ Qxf7 24. Rxc8
Rxc8 25. Qxe4 Qxa2 26. Rxg7+ Kxg7 27. Qg4+ Kh6 28. Qh3+ {Wh has a perpetual =()
tockfish10} (28. Qxc8 Qb1+ {Bl has a perpetual})) 20... Re8 (20... Kh8 $1 {
Stockfish10, removes all the tactics involving a check} 21. fxe5 (21. Qg4 g6
22. Rf1 f5 23. Qd1 Rc5 24. f3 Nxf3 25. Qxf3 b5 26. fxe5 bxc4 27. bxc4 Rxc4 $19
{Stockfish10}) 21... Qh4 22. Qe1 Nf3 23. Qe3 Ned2 (23... Nxe5 $17 {looks
simpler}) 24. Rd1 Qe4 $17 {Stockfish10}) 21. Qg4 (21. f3 Nf6 22. fxe5 Nxd5 23.
Qxd4 Nb6 24. Qg1 Nxc4 25. Rxg7+ Kh8 26. bxc4 Qe7 27. f4 Rc6 28. Rg3 Qd7 $14 {
Stockfish10}) 21... g6 22. Ne7+ {an interesting idea, though the Engine says
it shouldn.t work} (22. Rd1 Rc5 23. f5 (23. f3 Rxd5 24. fxe4 Rd6 25. fxe5 Rxe5
$11) 23... Nf6 24. Nxf6+ Qxf6 25. fxg6 hxg6 26. Qxg6+ Qxg6 27. Rxg6+ Kf8 28.
Rh6 b5 29. Bd3 Ke7 $11 {Stockfish10}) 22... Qxe7 (22... Rxe7 23. fxe5 (23.
Bxf7+ Kxf7 24. Qxc8 (24. Rxc8 Qd5 $19) 24... Qxc8 25. Rxc8 exf4 $19) 23... Nc5
$19 {Stockfish10}) 23. Bxf7+ Qxf7 24. Rxc8 Rxc8 25. Qxc8+ Kg7 $19 26. fxe5 Qf3
$2 {almost anything else wins for Bl!} (26... Ne2 $1 27. Qg4 Nxf2+ 28. Rxf2
Qxf2 $19) (26... Nxf2+ 27. Rxf2 (27. Kg1 Nd3 28. Rd2 Nf3+ $19) 27... Qxf2 28.
Qxb7+ Kh6 $19) (26... Qd5 27. Qc7+ Kh6 28. Qc1+ g5 29. Qe3 Nf5 30. Qf3 Nh4 31.
Qf8+ Kg6 32. Qe8+ Kf5 33. Qf8+ Kxe5 34. Qe8+ Kd4 $19) (26... Nf3 27. Qg4 Ned2
28. e6 Qc7 29. e7 Qxe7 $19 {All variations provided by Stockfish10}) 27. Qd7+
Kh6 28. Qxd4 $18 {the Q protects f2- as otherwise Bl would have a forced mate
with Nxf2} 1-0

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.13"]
[Round "4.10"]
[White "Parri, Deio"]
[Black "Szakmany, Bence"]
[Result "1/2-1/2"]
[ECO "E34"]
[WhiteElo "1659"]
[BlackElo "1515"]
[Annotator "kemen"]
[PlyCount "52"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,52,19,25,19,-16,-23,-7,0,-4,-4,-16,21,36,38,21,22,17,20,13,13,-4,18,
16,32,9,32,23,62,50,73,55,60,69,90,87,107,61,67,56,56,62,53,19,158,160,173,170,
324,52,61,10,51,0,61]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. Nf3 h6 (5...
Ne4 6. e3 h6 7. Bd3 Nxc3 8. bxc3 Be7 9. O-O O-O 10. cxd5 exd5 11. e4 $16 {
Parri-Horrell, rd2 West Wales Major 2019,0-1}) 6. e3 O-O 7. Bd3 dxc4 (7... c5)
(7... Nbd7) 8. Bxc4 b6 $11 (8... c5 9. a3 Bxc3+ 10. bxc3 cxd4 11. cxd4 b6 12.
O-O Bb7 13. a4 Nbd7 14. Qe2 Ne4 15. Bb2 Ng5 16. Ne5 Nxe5 17. dxe5 Ne4 18. Rfd1
Qg5 19. f3 Nc5 20. a5 Rad8 $14 {Pavlyutin-Suvorov, Korensky mem, Tambow 2008,
1-0}) 9. O-O Bb7 10. Qe2 {Komodo13} (10. a3 Be7 11. e4 Nh7 12. Be3 Ng5 13. Nxg5
Bxg5 14. f4 Be7 15. Rad1 $18 {Svida-Cvejn, Nachod op 2006,1-0}) (10. Rd1 $11 {
Cloud Engines}) 10... Re8 (10... c5) 11. a3 Bf8 12. b4 Qe7 (12... c5) 13. Bb2
Ne4 14. Rac1 a5 15. b5 $16 Nd6 16. Bd3 Rc8 17. a4 Qd8 18. Ba3 Nd7 19. Rfd1 c6
20. bxc6 Rxc6 21. Ne5 Nxe5 (21... Rcc8) 22. dxe5 $18 Rac8 23. Qb2 (23. Bb2 Ne8
24. Bh7+ Kxh7 25. Rxd8 Rxd8 26. Rd1 $18 {Komodo13}) 23... Qg5 24. f4 (24. exd6
Rxc3 25. Bf1 Rxc1 26. Rxc1 Rxc1 27. Qxc1 Qd8 28. Qd1 $16 {Komodo13}) 24... Qg4
25. Be2 (25. exd6 Rxc3 26. Bf1 $14 Bxd6 27. Bxd6 Bxg2 28. Qxg2 (28. Bxg2 Rc2
$19) 28... Qxg2+ 29. Kxg2 Rxc1 30. Rxc1 Rxc1 31. Be5 $16 {Komodo13}) 25... Qg6
26. Bd3 Qg4 (26... Nf5 27. Bxf8 Rxc3 28. Rxc3 Rxc3 29. Qf2 Kxf8 30. e4 Ne7 31.
Ba6 Bd5 32. exd5 exd5 $17 {Komodo13}) 1/2-1/2

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.13"]
[Round "5.1"]
[White "Miga, Tomasz"]
[Black "Pinch, David"]
[Result "0-1"]
[ECO "A43"]
[WhiteElo "1759"]
[BlackElo "1842"]
[Annotator "kemen"]
[PlyCount "62"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,62,29,28,28,17,58,32,37,30,93,7,14,14,13,-28,-34,-77,-85,-72,-67,-91,
-119,-107,-105,-136,-81,-79,-79,-106,-112,-98,-43,-71,-39,-42,-42,-46,-29,-41,
-28,-114,-114,-118,-118,-187,-187,-255,-242,-242,-192,-192,-192,-479,-479,-855,
-861,-861,-744,-744,-600,-792,-830,-830,-488]} 1. d4 Nf6 2. Nf3 c5 3. d5 d6 4.
c4 b5 {Its a Benko Gambit by transposition.} 5. b3 {Declined. But not the best
way of declining. 76% win rate for black.} g6 6. Bb2 bxc4 {[Houdini level].
Black decides to withdraw the offer of a Benko since white is well-advanced in
defending a Benko.} 7. bxc4 Bg7 8. Qc2 $2 {[Houdini B0.78 best e4 B0.16]. e4
is possible because the Nf6 is pinned. Qc2 just offers itself as a target.} (8.
e3 $11) (8. Nbd2 $11 {main lines- but Wh is struggling to get results over the
board in this variation _R}) 8... Bf5 {Cloud Engines} (8... O-O {main, 10 %
for Wh}) 9. Qa4+ Qd7 {Black offers the queen swap to be first to the b-file.} (
9... Bd7 10. Qc2 Na6 11. a3 Rb8 12. Nbd2 O-O 13. e4 Rxb2 $19 {Bl gets to the b
file first this way as well: Filip-Kelemen Feher, Miercurea Ciuc Banc Post op
2008,0-1 _R}) 10. Qxd7+ Nbxd7 11. Nbd2 O-O {[Houdini B0.94] Black's
development has been faster than white's.} 12. Nh4 $6 {This seems like a good
idea but it leaves the knight where it doesnt want to be.} Bc2 (12... Rab8 13.
Bc3 e6 $17 {Komodo13 _R}) 13. Rc1 Ba4 14. e4 Rfb8 {[Houdini B0.60 best Rfe8 B1.
29] I guess Houdini preferred the a-rook going here. I figured that there was
little that a rook could do behind the pawns that I do not intend moving.} (
14... Rfe8 15. Bc3 e6 16. dxe6 Nxe4 17. Nxe4 Rxe6 $17 {Komodo13- the Wh K is
still in the middle, hence the R on the e file _R}) 15. Bc3 Nb6 {The start of
a regrouping.} (15... Bh6 16. f3 Be3 $17 {Komodo13 _R}) 16. e5 $6 {[Houdini B1.
06 best Be2 B0.29] Development should be more important. However, this is
still a tricky move to deal with.} Nh5 {[Houdini B0.36 best dxe5 B0.93]. The
knight looks lost over there, but the f4 square is promising, or if white
plays g3 then Bh6, Ng7 and Nf5.} (16... dxe5 17. Bxe5 Re8 18. Be2 e6 19. d6
Nbd7 20. Nhf3 Rab8 $17 {Komodo13 _R}) 17. Nhf3 Bd7 {Houdini still wants to put
the knight back to d7, but it doesn't have a plan! I know exactly where I want
my knight.} 18. h3 Na4 {That's where I want it! On the side of the board to
match the other one!.} 19. Ba1 Rb6 20. g4 {Making a gift of the f4 square. Now
white's bishop cannot emerge without being swapped off at black's whim.} Nf4 {
[Houdini B0.90].} 21. Ne4 Rab8 22. Nfd2 Nb2 $1 {[Houdini B2.57]. This was the
point of regrouping. Black threatens a fork on d3 and has also cut off the a1
bishop from the defence of e5.} 23. Bxb2 Rxb2 24. exd6 exd6 25. Nxd6 Rxa2 {
[Houdini B3.90] The exchange of pawns has led to the opportunity for black to
double rooks on the seventh. And the black bishop has the long diagonal
unopposed.} 26. N6e4 $2 {[Houdini B5.53 best Rh2 B4.89]. A blunder.} Re8 {
Change of plan due to a new opportunity. [ the e file after all (cf move 14
note)-with the Wh K stranded _R]} 27. Kd1 $2 {Another blunder.} (27. Rg1 Bc3
28. Rxc3 Ra1+ 29. Nb1 Rxb1+ 30. Kd2 Rxe4 {is not much of an improvement-
Komodo13; _R}) 27... Ba4+ 28. Ke1 {Houdini has a better way to win, but it
isn't playing with a clock.} f5 (28... Bc3 29. Rxc3 Ra1+ 30. Nb1 Rxb1+ 31. Rc1
Rxc1+ 32. Kd2 Rc2+ $17) 29. gxf5 gxf5 30. f3 fxe4 31. fxe4 Bc2 {[Houdini B6.23
best Bb2 B11.13] Rb2 wins the exchange, but white resigns anyway.} 0-1

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.13"]
[Round "5.2"]
[White "Williams, Stephen"]
[Black "Pe, Philip"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "1675"]
[BlackElo "1789"]
[Annotator "kemen"]
[PlyCount "94"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,94,28,19,17,-4,-4,-11,-4,-5,15,-62,-38,-47,-21,4,14,14,22,7,-3,4,27,
22,35,20,27,21,38,36,74,70,85,83,93,70,101,91,98,98,360,361,391,389,454,462,
464,463,422,456,461,501,531,545,560,522,873,512,604,604,940,637,963,647,770,
689,895,657,726,553,558,536,1312,426,489,500,519,514,637,519,590,534,750,608,
698,361,731,463,463,-1042,-1509,-29983,-29984,-29985,-29986,-29997,-29998]} 1.
d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 h6 5. Bh4 d5 (5... c5 6. d5 b5 {is an
intersting variation that predates the Benko Gambit}) 6. e3 O-O (6... g5 7. Bg3
Ne4 8. Qc2 h5 9. f3 Nxg3 10. hxg3) 7. Nf3 a6 (7... Nbd7) (7... c5 {main lines})
8. cxd5 (8. Rc1 dxc4 9. Bxc4 b5 10. Be2 c5 11. O-O cxd4 12. Nxd4 Bb7 13. Bf3
Ra7 14. Bxb7 Rxb7 15. Qf3 Rd7 16. Ne4 Be7 {Umpfenbach-Matnadze, EU ch Girls
U16, Mureck 1998,1/2-1/2}) (8. Bd3 dxc4 9. Bxc4 b5 10. Bd3 Bb7 11. O-O c5 12.
Be4 Bxe4 13. Nxe4 Nbd7 14. a3 Ba5 15. dxc5 g5 16. Nxf6+ Nxf6 17. Bg3 Ne4 18. b4
{Amarante-Leite, BRA ch Seletivo; Sao Paulo 2003,1-0}) 8... exd5 9. Qc2 Nc6 (
9... Be6 10. Bd3 {3 draws}) 10. Bd3 Be7 (10... Be6 {1 game each}) (10... Re8 {
Sands-MacKenzie, 4NCL 1998,1/2-1/2}) (10... Qd6 11. O-O-O b5 12. Bxf6 Qxf6 13.
Nxd5 {Schnider-Do Quoc, Styrian Ch U12, Mureck 2010,1-0}) 11. a3 Bg4 {
Stockfish10} (11... Be6 12. O-O $16 {8 Wh wins,1 draw}) 12. Nd2 (12. O-O Bxf3
13. gxf3 {2-0} Re8 14. Qb3 g5 15. Bg3 b5 16. Rac1 Na5 17. Qa2 c6 18. Rfe1 $16 {
Mikolas-Vermehren, EU ch U12, Bratislava 2019,1-0}) 12... Re8 13. O-O Qd7 14.
b4 Na7 15. Rfc1 Rad8 16. Nb3 $16 (16. Na4 $16) 16... Ne4 17. Bxe7 Qxe7 18. Bxe4
dxe4 19. Nc5 Bf3 $5 {feeling ground down, Bl creates confusion} (19... Bc8 20.
Qxe4 $16 {Komodo13}) 20. gxf3 $18 Qg5+ 21. Kh1 exf3 (21... Qh5 22. Qd1 exf3 23.
Nxb7 $18 {Komodo13}) 22. Rg1 Qh5 23. Nxb7 Rb8 24. Nc5 Rb6 25. Rg3 Rf6 26. Rag1
g6 27. Nd7 {Wh is following all the Engine recommendations so far} Rf5 28. Ne5
(28. e4 $1 Rf4 29. Nd5 {wins the Q-Komodo13}) (28. Ne4) (28. Nd5) (28. Rg4 {
all win}) 28... Kh7 29. Nd5 Kg7 30. Nf4 (30. Rxg6+ fxg6 31. Qxc7+ Kg8 32. Nxg6
{mating=Komodo13}) (30. Nxf7 Re6 31. Ne5 Nb5 32. Nxg6 $18 Rg5 33. Ngf4 {
mating-Komodo13}) 30... Rxf4 31. exf4 (31. Nxg6 $1 {first Komodo13- even
stronger}) 31... Nb5 32. Nxf3 (32. Nxg6 $18) (32. Rxg6+ $18 {both Komodo13})
32... Nd6 33. Ne5 (33. Qxc7) 33... Nf5 34. Qd3 (34. Rc3) (34. Qxc7) (34. Rd3)
34... Nxg3+ 35. fxg3 $18 (35. Rxg3 $18) 35... f6 36. Nf3 (36. g4 $1 {wins the
Q (or the K)}) (36. Rc1 fxe5 37. Rxc7+ Kg8 38. dxe5 $18) 36... Qd5 37. Rc1 c6
38. Rc5 Qa2 39. Rc2 (39. Rxc6 $18) (39. d5 $18) 39... Qb1+ 40. Kg2 h5 41. Kh3 (
41. Nh4 f5 42. d5 $18 {Komodo13}) 41... Kh6 42. Nd2 (42. Nh4 Rg8 43. Qc4 Rg7
44. Qe2 $18) (42. f5 g5 43. Nxg5 $18 {both Komodo13}) 42... Qh1 43. Qf3 (43.
Nf3) 43... Qg1 44. Qxc6 $2 (44. Rxc6 $18) (44. Nf1 $18) (44. Rc4 $18) (44. Ne4
$18) 44... Re2 $19 45. Nf3 Qg2+ 46. Kh4 Rxc2 47. Qxf6 Qxh2+ {a game that
affected joint first place.} 0-1

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.13"]
[Round "5.3"]
[White "Jones, Martin C"]
[Black "Parsons, David"]
[Result "1/2-1/2"]
[ECO "E61"]
[WhiteElo "1746"]
[BlackElo "1691"]
[Annotator "kemen"]
[PlyCount "60"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,60,19,31,14,-14,43,38,37,37,33,18,25,12,54,28,37,2,32,34,50,45,38,13,
77,65,65,54,13,19,19,-2,27,8,3,-19,19,10,14,11,55,11,2,10,85,100,112,122,92,74,
62,84,117,123,123,42,42,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 d6
5. Bg5 Nbd7 (5... O-O) 6. e3 c6 7. Be2 O-O 8. Qc2 Qc7 9. O-O e5 10. Rad1 (10.
Rfd1 {main, in this Smyslov System}) 10... Re8 11. b4 (11. dxe5 dxe5 12. Nd2
Nf8 13. b4 {main}) 11... Nf8 12. dxe5 {played for the slight edge
characteristic of this opening, but the balanced pawn structure can lead to
many draws, as the heavy pieces swap off in the d file} dxe5 13. c5 Bf5 14. e4
(14. Qb3 {2 Wh wins, 1 draw}) (14. Qc1 {1 Bl win, 1 draw}) 14... Bg4 15. Nd2 (
15. Rd3 Ne6 16. Be3 Bxf3 17. Bxf3 Rad8 18. Rfd1 Rxd3 19. Rxd3 Rd8 $11 20. g4 $2
Nd4 $19 {Bernardez Rodriguez-Calpe Melendres, Sant Boi op 2000,0-1}) 15... Bxe2
16. Nxe2 Ne6 (16... b5 17. Nb3 Ne6 18. Bc1 Rad8 19. Bb2 Nh5 20. g3 Ng5 21. h4
Ne6 22. Rxd8 Rxd8 23. Rd1 $11 {Gagarin-Velikhanli, Moscow op 2007,1/2-1/2}) 17.
Bh4 (17. Be3 $11 {better control over battlegrounds d4 & c5}) 17... Red8 (17...
a5 18. a3 axb4 19. axb4 b6 20. cxb6 Qxb6 21. Rb1 Nh5 22. Nc4 Qa6 23. Rfc1 $11 {
Komodo13}) 18. Nc4 Rxd1 19. Rxd1 Ne8 (19... b6 $5) 20. Qd3 (20. f3 b6 21. Bg3
bxc5 22. bxc5 Rd8 $11 {Komodo13}) 20... g5 (20... b6 $15 21. Qc3 (21. cxb6 axb6
22. Nc3 h5 23. h3 Nd4 24. Bg3 Rd8 $15 {Komodo13}) 21... bxc5 22. bxc5 Nxc5 23.
f3 Rb8 $15 {Komodo13}) 21. Bg3 Nf4 (21... Rd8 $11) 22. Bxf4 gxf4 (22... exf4
23. h4 $16) 23. Qd7 $14 (23. g3 $16) 23... Bf6 24. Qxc7 Nxc7 25. Rd6 (25. Rd7
$16 {Komodo13} Ne6 (25... Rd8 26. Rxd8+ Bxd8 27. Nxe5 $16) (25... Rc8 $2 26.
Nd6 $18) 26. Rxb7 $16) 25... Ne8 26. Rd7 b6 27. cxb6 (27. f3 $16) 27... axb6
$11 28. Nc3 b5 29. Nd6 Nxd6 30. Rxd6 Be7 $11 1/2-1/2

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.13"]
[Round "5.4"]
[White "Horrell, Stephen"]
[Black "Penny, Liam"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "1696"]
[BlackElo "1674"]
[Annotator "kemen"]
[PlyCount "97"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,97,36,36,41,44,70,68,67,68,68,30,63,53,75,59,44,25,76,53,82,48,37,37,
36,39,36,22,34,30,45,40,35,29,43,35,50,55,55,51,46,44,40,47,98,88,131,101,104,
94,191,136,127,125,122,128,117,116,110,100,101,91,95,87,112,103,117,105,116,
103,115,136,144,146,148,127,168,170,171,164,141,158,204,142,167,122,120,99,167,
177,157,258,435,437,628,650,777,844,917,648]} 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5
4. d4 Nf6 5. Bc4 Bf5 6. Nf3 c6 (6... e6) 7. Bd2 e6 8. Qe2 Bb4 9. O-O (9. O-O-O
{main}) 9... O-O (9... Bxc2 10. a3 $18 (10. d5 $1 $18 {Cloud Engines}) 10...
Bxc3 11. Bxc3 Qf5 12. d5 Qe4 13. dxe6 fxe6 14. Rfe1 Qxe2 15. Rxe2 Ba4 16. Rxe6+
{Rasch-Sunder, Hessenliga 1996,1-0}) 10. a3 Bxc3 11. Bxc3 Qc7 12. Rfe1 (12. Ne5
{main}) (12. Nh4 {Cloud Engines}) 12... Nbd7 13. h3 (13. Rad1) (13. Ne5 {
main lines}) 13... Nb6 $146 (13... b5 14. Bb3 a5 15. Ne5 a4 16. Ba2 Rfe8 17.
Rac1 {Mamedov-Nakamura, Wld ch blitz , Moscow 2010,1/2-1/2}) 14. Bb3 Nbd5 15.
Bd2 Ne4 16. Nh4 (16. Bc1 Nf4 17. Bxf4 Qxf4 18. Ne5 $11 {Komodo13}) 16... Nf4 (
16... Nxd2 17. Qxd2 Bg6 $11 {Komodo13}) 17. Bxf4 Qxf4 18. Nxf5 (18. g4 $1 {
The Engine sees an overload} Ng5 (18... Qh6 19. gxf5 Ng5 20. Qg4 Qxh4 21. Qxh4
Nf3+ 22. Kf1 Nxh4 23. fxe6 fxe6 24. Rxe6 Kh8 25. Rae1 $16) 19. Qe3 Bxg4 (19...
Bg6 20. Kg2 Qxe3 21. Rxe3 $18 {the 2 K side pieces are in trouble} c5 (21... e5
22. Rxe5 Ne6 23. Nxg6 hxg6 24. c3 $18 (24. Bxe6 fxe6 25. Rxe6 $18)) 22. f4 cxd4
23. Ree1 Nxh3 24. Kxh3 $18 {Komodo13})) 18... exf5 19. Qe3 $14 Qd6 20. f3 (20.
Rad1) 20... Nf6 $11 21. Qe5 Rad8 (21... Qd7) 22. c3 (22. Qxd6 Rxd6 23. Re7 Nd7
24. Rd1 $14 {Komodo13}) 22... g6 (22... Qxe5 23. Rxe5 Rfe8 24. Rxf5 Re2 25. Rb1
Rde8 $11 {Komodo13}) 23. Qxd6 Rxd6 24. Re7 Rd7 (24... Nd7) 25. Rae1 (25. Rxd7
Nxd7 26. Re1 $18 {Komodo13}) 25... Rfd8 26. Bxf7+ Kf8 27. Rxd7 Rxd7 28. Bb3 $16
Nd5 29. Bxd5 (29. g3 $18) (29. h4 $18) 29... Rxd5 30. f4 (30. Re5 $18) 30...
Kf7 31. Re5 Rd7 32. Kf2 Rd6 33. Ke3 $18 Rd7 34. a4 b6 35. b4 a6 36. c4 Rc7 37.
a5 {making holes in the Bl pawn structure} b5 38. cxb5 (38. c5 h6 39. d5 $18 {
Komodo13}) 38... cxb5 39. Rc5 Re7+ 40. Kd3 Re6 41. d5 Re4 42. Rc6 Rxb4 43. Rxa6
Ra4 44. Ra7+ (44. Ra8 Rxf4 45. a6 Ra4 46. a7 Kg7 47. d6 $18 {Komodo13}) 44...
Kf6 45. a6 h5 46. Ra8 Ke7 (46... Kg7 47. d6) 47. a7 Kd7 48. Rg8 Ra3+ 49. Kc2 (
49. Kd4) 1-0

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.13"]
[Round "5.5"]
[White "Philpin, Les"]
[Black "Probert, Malcolm"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1675"]
[BlackElo "1541"]
[Annotator "kemen"]
[PlyCount "96"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,96,19,31,43,27,36,31,43,32,20,11,20,12,43,23,48,28,14,-26,33,2,5,9,-3,
-52,-57,-64,-50,-82,-82,-94,-94,-94,-35,-89,-51,-49,-56,-61,-60,-65,-62,-58,
-45,-72,-74,-92,-72,-92,-110,-113,-32,-28,-24,-54,-74,-106,-43,-23,-100,-91,
-91,-106,-106,-111,-81,-150,-153,-160,-160,-699,-892,-889,-109,-81,-36,-20,-2,
-65,-53,-54,-50,-69,-61,-83,-84,-117,-41,-50,-100,-107,-141,-141,-199,-240,
-299,-1131,-418]} 1. d4 d5 2. Nf3 Nf6 3. Bf4 g6 4. Nbd2 Bg7 5. e3 O-O 6. Be2 b6
7. Ne5 c5 8. c3 Bb7 9. Ndf3 $146 (9. O-O {main}) (9. h4) (9. h3) 9... Nfd7 (
9... Ne4 $17 {Komodo13}) 10. h4 Nxe5 11. Nxe5 Nd7 (11... f6 {by transposition}
12. Nf3 h5 13. Qc2 Kf7 (13... Qe8 14. Bd3 f5 $16) 14. Bd3 $18 (14. g4 $1 hxg4
15. h5 $18 {Komodo13}) 14... f5 15. Ng5+ (15. g4 $1) 15... Kg8 16. Ne6 Qd7 17.
Nxf8 Kxf8 18. O-O-O $18 {Garrison-Arganian, Lansing ch MI op, 1988 0-1}) 12.
Ng4 (12. Nxd7 Qxd7 13. h5 $14 {Komodo13}) 12... h5 $15 13. Nh2 (13. Ne5) 13...
e5 $17 {Bl is fully developed & the Wh K still in the centre} 14. Bg3 exd4 (
14... Qe7) 15. exd4 Re8 16. O-O Nf6 $15 {Komodo13} (16... cxd4 17. cxd4 Bxd4
18. Qxd4 Rxe2 $15 {Komodo13}) 17. f3 Bc8 (17... Rc8 18. Qd2 Re6 19. Bd3 Ne8 $15
{Komodo13}) 18. Re1 Bf5 19. Bb5 (19. Nf1 $11) 19... Rxe1+ 20. Qxe1 a6 21. Bc6
Ra7 22. Ba4 Re7 $17 23. Qf2 b5 24. Bc2 Bxc2 25. Qxc2 c4 (25... cxd4 26. cxd4
Ne8 27. Rd1 Re6 28. Bf2 Nd6 29. g3 Nf5 30. Rd2 Qe8 $17 {Komodo13}) 26. Qd2 Qe8
27. Be5 (27. Kf2) 27... Kh7 28. Re1 Nd7 (28... Bh6 29. Qd1 Nd7 30. Bg3 Rxe1+
31. Bxe1 (31. Qxe1 Qxe1+ 32. Bxe1 Bc1 $19 33. b3 cxb3 34. axb3 a5 $19) 31...
Qe3+ 32. Kf1 Qd3+ 33. Qxd3 cxd3 34. Bg3 Nb6 35. b3 Bd2 36. Kf2 Bxc3 37. Ke3 d2
38. Ke2 Nc8 $17 {Komodo13}) 29. Bg3 (29. Bxg7 $1 Rxe1+ 30. Kf2 Kxg7 31. Qxe1
$11 {Komodo13}) 29... Rxe1+ 30. Bxe1 {some tricky decisions here for both
sides, which require time} (30. Qxe1 Qxe1+ 31. Bxe1 Bh6 32. Kf2 Bc1 (32... a5
33. Nf1 Bc1 34. Ke2 Bxb2 35. Ne3 Nb6 36. Kd1 Kg7 37. Kc2 Ba3 38. Bg3 Kf6 39.
Bc7 Nc8 40. Nxd5+ Ke6 41. Nf4+ Kd7 42. Bxa5 Ne7 43. g4 Bd6 44. Ng2 Nd5 $15 {
Komodo13}) 33. b4 cxb3 34. axb3 a5 35. Ke2 $15 {[%emt 0:00:28] Komodo13- the
Wh K is nearer than in the note to move}) 30... Bh6 $17 31. Qd1 Qe3+ 32. Kf1 a5
(32... Qd3+ $5 33. Qe2) 33. Bf2 Qc1 $19 (33... Qf4 $1 34. g3 (34. Kg1 Qc1 $19)
34... Qc1 $19 {Komodo13}) 34. Qxc1 Bxc1 35. b3 cxb3 36. axb3 Bd2 (36... a4 $1
$19 {& the pawn can't be stopped}) 37. Be1 (37. Ke2 Bxc3 38. Kd3 Bb4 39. Nf1
$17 {Komodo13}) 37... Bxe1 (37... Bh6) 38. Kxe1 a4 (38... g5 39. hxg5 Kg6 40.
Kd2 (40. f4 Kf5 41. g3 f6 $19) 40... Kxg5 $17 {Komodo13}) 39. bxa4 (39. Kd2 g5
40. hxg5 Kg6 41. Kc2 h4 42. Kb2 Kxg5 43. Nf1 Nb6 44. bxa4 bxa4 45. Ka3 f5 $17 {
Komodo13}) 39... bxa4 40. Kd2 Nb6 41. Kc2 Nc4 $19 42. Nf1 Kg7 (42... g5) 43. g3
Kf6 44. Nd2 Nxd2 45. Kxd2 Ke6 46. Kc2 Kd6 47. g4 f5 (47... Kc6) 48. Kb2 Kc6 0-1

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.13"]
[Round "5.6"]
[White "Jones, Huw"]
[Black "Di-Vetta, Andrew"]
[Result "0-1"]
[ECO "B27"]
[WhiteElo "1642"]
[BlackElo "1812"]
[Annotator "kemen"]
[PlyCount "98"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,98,44,41,67,80,149,33,34,11,65,22,42,15,42,37,44,39,39,33,24,3,37,21,
-1,-1,36,19,9,-2,29,7,-3,-3,25,18,21,-9,-7,-6,13,-11,-9,-28,7,9,15,-50,-45,-52,
-62,-67,-42,-54,-51,-58,-57,-61,-61,-64,-56,-64,-56,-56,-50,-56,-50,-55,-55,
-110,-68,-68,-81,-150,-162,-200,-81,-213,-75,-89,-59,-60,-66,-65,-70,-87,-82,
-214,-182,-177,-185,-582,-235,-252,-236,-264,-274,-277,-279,-266,-274]} 1. e4
c5 2. Nf3 g6 3. c3 (3. d4) 3... d5 (3... Bg7) 4. exd5 Qxd5 5. d4 Bg7 6. Be2 (6.
Na3) (6. Be3) 6... Nf6 7. O-O cxd4 8. cxd4 O-O 9. Nc3 Qd8 (9... Qa5 {
alternative}) 10. h3 Nbd7 11. Be3 (11. Bc4 {main}) 11... Nb6 12. Qd2 Re8 (12...
Be6 13. Ng5 Bc4 14. Rfe1 Bxe2 15. Qxe2 Nbd5 16. Bd2 e6 17. Nf3 Rc8 18. Qb5 Qb6
19. a4 a6 20. Nxd5 Nxd5 21. Qxb6 Nxb6 22. Bb4 Rfd8 $15 {Namyslo-Poetz,Vienna
op 2011,0-1}) 13. Ne5 Nfd5 14. Bh6 Nxc3 15. bxc3 Bxe5 16. dxe5 Qxd2 17. Bxd2
Be6 $11 18. Be3 Nc4 19. Bd4 Bd5 (19... b6 $15) 20. Bxc4 (20. Rad1) 20... Bxc4
21. Rfb1 (21. Rfd1) 21... b5 22. a4 a6 23. a5 (23. f4 $11) 23... Rac8 $15 {
the Bl Rs have a bit more opportunity} 24. h4 h5 25. g3 Be2 26. f4 Rc4 27. Rb2
Bg4 $17 28. Kf2 (28. Rb4 Rcc8 29. Kf2 Red8 $17 {Komodo13}) 28... Rec8 29. Ke3
Kf8 30. Ra3 Ke8 31. Ra1 Kd7 32. Ra3 Be6 33. Ra1 Bd5 34. Ra3 Ke6 35. Ra1 Kf5 36.
Ra3 (36. Rb4 $5) 36... Kg4 $19 (36... Ra4 $19) 37. Kf2 Be4 38. Re2 Bf5 (38...
b4 $19) 39. Rd2 b4 40. cxb4 Rxb4 41. Bb2 $17 Rcb8 42. Bc3 Rb1 43. Ra1 Rxa1 (
43... R1b3 $19) 44. Bxa1 Rb3 $19 45. Kg1 Rxg3+ 46. Rg2 Kxf4 (46... Kxh4 {
creates an outside passed pawn}) 47. Rxg3 Kxg3 48. Bd4 Kxh4 49. Bf2+ Kg4 0-1

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.13"]
[Round "5.8"]
[White "Wells, Thomas"]
[Black "James, Lucas"]
[Result "1-0"]
[ECO "A15"]
[BlackElo "1515"]
[Annotator "kemen"]
[PlyCount "89"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,89,23,-59,-11,-80,3,3,25,23,10,6,30,31,4,1,4,3,50,35,35,6,24,-10,-3,
-18,12,0,12,8,30,59,274,0,12,-4,59,29,36,63,63,61,98,122,138,149,135,125,206,
211,211,157,181,188,208,192,256,262,262,247,260,242,257,257,272,200,200,207,
206,211,217,243,308,356,365,438,957,1050,1071,1083,1107,1118,1165,1182,1265,
1295,1385,2038,2102,2230,28809,28898]} 1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nf3 d6
5. O-O O-O 6. Nc3 c5 7. d3 (7. d4 {main}) 7... Nc6 8. Bd2 d5 9. cxd5 Nxd5 10.
Qb3 $146 (10. Qc1 {2 draws, 1 Bl win}) (10. Nxd5 {2-0}) 10... e6 (10... Nc7)
11. Rac1 b6 12. Rfd1 Na5 13. Qc2 Nb4 14. Qb1 {the Q is not badly placed here,
& the Bl Ns will soon have to retreat} Bb7 15. a3 Nbc6 (15... Nd5 16. b4 cxb4
17. axb4 Nc6 18. Nxd5 exd5 19. b5 Nd4 20. Nxd4 Bxd4 21. Qb3 $16 {Komodo13}) 16.
Qc2 (16. b4 $1 {wins a N}) 16... Rc8 17. e3 Ne5 (17... Nd4 {anyway- a typical
pseudo-sac in this reverse Maroczy Bind Sicilian} 18. exd4 cxd4 19. Nxd4 Bxg2
20. Kxg2 Qxd4 $15) 18. Nxe5 Bxg2 19. Nxf7 {now the desparado wins a pawn} Rxf7
20. Kxg2 $16 Bxc3 21. Bxc3 Qd5+ 22. e4 $18 Qh5 23. f4 (23. Bxa5 bxa5 24. Rd2
$18 {Komodo13}) 23... Rcf8 (23... Nb3 $5 24. Rb1 $16 (24. Qxb3 Qe2+ {perpetual}
)) 24. Bxa5 bxa5 25. Rf1 Qg4 26. h3 Qh5 27. Rf2 e5 28. Qxc5 exf4 29. Qxh5 gxh5
30. Rxf4 Rxf4 31. gxf4 Rxf4 32. Rf1 Rxf1 33. Kxf1 $18 Kf7 34. Ke2 Ke6 35. Ke3
Ke5 36. d4+ Ke6 37. Kf4 h6 38. d5+ Kd6 39. Kf5 a4 40. Kf6 a6 41. e5+ Kd7 42.
e6+ Ke8 43. d6 h4 44. d7+ Kd8 45. Kf7 1-0

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.13"]
[Round "5.9"]
[White "Szakmany, Bence"]
[Black "Williams, Duncan"]
[Result "1/2-1/2"]
[ECO "C89"]
[WhiteElo "1515"]
[BlackElo "1793"]
[Annotator "kemen"]
[PlyCount "35"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,35,19,9,1,13,22,3,16,-2,4,-12,18,-1,-14,13,0,-48,-4,-9,22,33,19,13,28,
28,29,25,111,85,87,89,229,49,60,49,60,60]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4
Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 {the elite GMs play this for a
draw, often after some 30 moves of theory} 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5
Nf6 {the original Marshall move vs Capablanca} (11... c6 {main modern lines})
12. d4 Bd6 13. Re1 Ng4 14. h3 Qh4 15. Qf3 Bh2+ (15... Nxf2 16. Re2 $1 $18 {
Cloud Engines; Capablanca-Marshall, New York 1918,1-0 & many Bl players
sinceat least 60! Those who do not know their history are bound to repeat it.}
(16. Qxf2 Bh2+ (16... Bg3 17. Qxf7+ {12-0, other players missed this}) 17. Kf1
Bg3 {21 % for Wh})) 16. Kf1 Bd6 17. Kg1 (17. Bf4 {6 Wh wins, 1 draw, 3 Bl wins}
Bb7 18. Qxg4 (18. d5 {1-2}) 18... Qxg4 19. hxg4 Bxf4 20. g3 $16 {3 Wh wins, 1
draw}) 17... Bh2+ 18. Kf1 {as played 3 times before} 1/2-1/2

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.13"]
[Round "5.10"]
[White "Stuart, Neil"]
[Black "Parri, Deio"]
[Result "1/2-1/2"]
[ECO "D43"]
[WhiteElo "1660"]
[BlackElo "1659"]
[Annotator "kemen"]
[PlyCount "57"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

{[%evp 0,57,19,31,43,-4,33,34,16,10,35,-1,37,47,46,27,40,35,28,46,67,45,84,79,
73,57,73,27,44,35,41,26,19,6,13,3,3,-72,-17,-95,11,-6,31,25,33,-2,52,12,13,0,0,
-4,27,18,-8,9,23,21,6,8]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Be7 (
5... h6) (5... Nbd7) (5... dxc4 {are more complex lines}) 6. e3 O-O 7. cxd5
cxd5 (7... exd5 {keeps more tension in the pawn structure}) 8. Bd3 Nbd7 9. O-O
Re8 (9... a6 {main}) 10. Qe2 Nf8 (10... a6 {1 game each}) 11. Rac1 $16 Ng6 12.
Nb5 Rf8 13. Qc2 a6 14. Nc3 Bd7 15. Qb3 b5 16. Bxg6 (16. Ne2 $14) 16... hxg6 17.
Ne5 $11 Bd6 18. Nd3 (18. Bf4) 18... Qe7 {missing a chance} (18... Bxh2+ 19. Kh1
(19. Kxh2 Ng4+ 20. Kg1 Qxg5 $17) 19... Bd6 $17) 19. Ne2 (19. Bf4 $11) 19...
Rfe8 (19... Bxh2+) 20. Bf4 Ne4 21. Bxd6 Qxd6 22. Qb4 Qb6 (22... Qxb4 23. Nxb4
a5 $11) 23. Rfd1 a5 24. Qe1 b4 25. f3 Nf6 26. Nc5 Bb5 27. Nf4 (27. Qd2 $11)
27... Nd7 (27... e5 28. dxe5 Rxe5 29. Qd2 Rae8 30. Re1 g5 31. Nfd3 Bxd3 32.
Qxd3 g4 $15 {Komodo13}) 28. Nxd7 Bxd7 29. Nd3 $11 1/2-1/2

[Event "West Wales Congress Major"]
[Site "Swansea"]
[Date "2019.10.13"]
[Round "5.7"]
[White "Chung, Daniel"]
[Black "Vesz, Marcell"]
[Result "1/2-1/2"]
[ECO "E21"]
[WhiteElo "1434"]
[BlackElo "1561"]
[Annotator "kemen"]
[PlyCount "102"]
[EventDate "2019.10.11"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "WLS"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 c5 5. a3 cxd4 (5... Bxc3+ {main}) 6. axb4
dxc3 7. bxc3 O-O 8. Be3 (8. Bg5 {2-2}) (8. Bf4 {1/2-1/2}) (8. c5 $16 {Komodo13}
) 8... b6 9. g3 Bb7 10. Bg2 Qc7 11. Qb3 d5 12. c5 bxc5 13. Bxc5 (13. bxc5 Nbd7
14. O-O Rfb8 $11 (14... Ne4 $11 {Komodo13})) 13... Rc8 14. O-O (14. Rxa7 Rxa7
15. Bxa7 Nbd7 16. O-O Ne4 17. Re1 Qxc3 $11 {Komodo13}) 14... a5 15. Bd4 (15.
Rxa5 Rxa5 16. bxa5 Ba6 17. Bb6 Qxc3 18. Qxc3 Rxc3 19. Nd4 Nbd7 20. Ra1 Kf8 $11
{Komodo13}) 15... Nbd7 16. bxa5 (16. Rxa5 Rxa5 17. bxa5 Ne4 $11 {Komodo13})
16... Ba6 17. Rfe1 (17. Bb6 Qxc3 18. Qxc3 Rxc3 19. Nd4 Kf8 $11 {Komodo13})
17... e5 18. Be3 Qxc3 (18... Bc4 19. Qb4 Rab8 20. Qa4 Bb5 21. Qa3 Ba6 22. Bh3
h6 $14 {Komodo13}) 19. Qxc3 Rxc3 20. Nxe5 $18 Nc5 21. Bxc5 (21. Nc6 Bb7 22. Nd4
$18 {Komodo13}) (21. Bd4 Rc2 22. Reb1 Ne6 23. Be3 Bxe2 24. Rb6 $18 {Komodo13})
(21. Rab1 $18 {Komodo13}) 21... Rxc5 22. f4 (22. Reb1 h5 23. Bf1 Bb5 24. a6
Bxa6 25. e3 Re8 26. Rxa6 Rxe5 27. Ra8+ Kh7 28. Bd3+ Ne4 29. f3 Rc3 30. Rd1 g6
31. fxe4 dxe4 32. Bf1 $16 {Komodo13}) 22... Bc8 (22... Bb5) 23. Rec1 (23. Reb1)
23... Rb5 (23... Raxa5 24. Rxa5 Rxc1+ 25. Kf2 Bb7 26. Ke3 Rc7 27. Kd4 h5 $14 {
Komodo13}) 24. Rc7 $18 (24. a6 $18) (24. e3 $18) (24. Rc6 $18) 24... Rb7 25.
Rxb7 (25. Rc5 {also}) 25... Bxb7 26. h3 (26. Rb1 Bc8 27. Kf2 h6 28. Rb5 Be6 29.
Ke3 $18 {Komodo13}) 26... Ne4 27. Bxe4 dxe4 28. Kf2 $18 {Wh has an extra a
pawn, a better placed R , a superior N vs B, & a more active K. What can go
wrong?} f5 29. Nd7 (29. Ke3) (29. g4 g6 30. gxf5 gxf5 31. Ke3 {loosens Bl's K
side}) 29... Kf7 30. Nc5 (30. Nb6 Ra7 31. Rc1 Ba6 32. Rc5 $18 {Komodo13}) 30...
Bc6 (30... Bc8) 31. a6 (31. g4 g6 32. gxf5 gxf5 33. a6 {makes a f pawn a
possible target}) 31... Ra7 32. Nb3 (32. Rb1 $1 $18) 32... Bb5 33. Nd4 Bd7 (
33... Rxa6 34. Rxa6 Bxa6 35. Nxf5 $19 {Komodo13}) 34. Ra5 {which is why the
Engines exchanged pawns via g4 earlier.} g6 35. Ke3 Bc8 36. Nc6 $2 {gives up
all of Wh's advantage.} (36. g4 $1 {Komodo13-still the best} fxg4 37. hxg4 Rxa6
(37... Bxg4 38. Nc6 Ra8 39. Ne5+ Ke6 40. Nxg4 $18) 38. Rxa6 Bxa6 39. Kxe4 $18 {
Komodo13}) 36... Rxa6 37. Ne5+ Ke6 38. Rxa6+ Bxa6 $11 39. Kd2 g5 40. e3 Bf1 41.
h4 gxh4 42. gxh4 Kf6 {the B is still bad- restricted by its own pawns; but not
easy for Wh to obtain a win, even though the N is far superior to the B, since
it can force the Bl K away from key squares.} 43. Ke1 {worried about a Bl K
attack on h pawn, but, there usually are better prospects for the Wh K via the
centre.} (43. Kc3 {exploring} Ke7 44. Kd4 (44. Nc6+ Kd6 45. Nd4 Bh3 46. Kb4 Bg4
{and the B can do what a N can't- lose a tempo while still remaing in place.})
44... Kd6 {the problem now is that the N has only one square available to it.}
45. Nf7+ (45. h5 h6 46. Nf7+ Ke6 47. Nxh6 Be2 48. Nxf5 Kxf5 49. h6 Kg6 50. Kxe4
Kxh6 $11) 45... Ke7 46. Ng5 h6 47. Nh7 Ke6 48. Nf8+ Ke7 {and the N has nowhere
to go to evade the K 's attention}) 43... Ba6 44. Kf2 Kg7 45. Kg3 Kh6 {and the
is no entry for the Wh K here either} 46. Nf7+ Kh5 47. Nd6 Kg6 48. h5+ $6 {
but this risks losing as the h pawn could be too exposed- Wh is best just
accepting its a draw. Just because you were wuinning earlier doesn't mean that
the win must still be there.} (48. Ne8 Kf7 49. Nd6+ Kg6 50. Ne8) 48... Kf6 $17
(48... Kxh5 49. Nxf5 {is probably still a draw}) 49. Kh4 (49. h6 {
paradoxically safest- keeping it away from the B. The B has to come to defend
f5 to release the K from the N grip on the f pawn} Be2 50. Kh4 Bd1 (50... Bg4
51. Nxe4+ $11) 51. Nc4 Kg6 52. Nd6 Bb3 53. Ne8 Kxh6 54. Nd6 Be6 55. Kg3 {
however, Bl now finds himself unable to squeeze past the Wh K with either K or
h pawn.}) 49... Be2 (49... h6 $1 {Komodo13-gives Bl a win, as now the K will
be tied down & the N chased away} 50. Kh3 Ke6 $1 (50... Be2 51. Nc8 {is
apparently more difficult, though still winning.}) 51. Ne8 Ke7 52. Nc7 Bc4 53.
Kg3 Kd7 54. Na8 Kc6 55. Kf2 Kb7 56. Ke1 Kxa8 57. Kd2 Bf7 58. Kc3 Bxh5 $19) 50.
Ne8+ Kf7 51. Nd6+ Kf6 $11 1/2-1/2

