[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "1.1"]
[White "Yarmonov, Igor"]
[Black "Tazbir, Marcin"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "2391"]
[BlackElo "2513"]
[Annotator "TA"]
[PlyCount "30"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,30,41,43,39,42,31,63,42,68,58,77,97,93]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 h6 7. e3 b6 8. Nf3 Bb7 9. Be2 d6 10. O-O Nbd7 11. Rd1 {E32: Nimzo-Indian: Classical (4 Qc2): 4...0-0.} Qe7 12. b4 {[%cal Bb2b4,Bb4b5][%mdl 32]} c5 {[#]} 13. Bb2 $146 ({Predecessor:} 13. dxc5 dxc5 14. Bb2 Rfd8 15. Nd2 e5 16. f3 a5 17. b5 Ne8 18. Nf1 e4 19. f4 {1-0 (51) Herrberg,W (1834)-Knoeppel,P (1774) GER email 2006}) 13... Rac8 14. dxc5 bxc5 15. b5 Ba8 {White took control after the opening.  Weighted Error Value: White=0.04/Black=0.16} 1/2-1/2

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "1.1"]
[White "Babarykin, Stanislav"]
[Black "Lapaj, Mateusz"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2387"]
[BlackElo "2216"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,67,-7,0,0,59,60,50,54,58,56,56,69,335,45,808,802,751,803,774,781,743,740,739,717,680,764,702,562,542,312,323,326,308,331,320,320,319,275,269,249,291,250,346,300,877,836,836,836,852,820,833,828,819,677]} 1. d4 Nf6 2. Bf4 d5 3. e3 c5 4. c3 Nc6 5. Nd2 e6 6. Ngf3 Bd6 7. Bg3 O-O 8. Bd3 b6 9. e4 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} dxe4 (9... Be7 $11) 10. Nxe4 $14 Nxe4 11. Bxe4 {And now dxc5 would win.White is slightly better.} Bb7 12. dxc5 Bxc5 13. Qa4 Qc8 $2 {[%mdl 8192] [#]} ({Black should try} 13... Rc8 $14) 14. O-O $2 {[#]} ({White has to play} 14. Bxh7+ $1 $18 {[%mdl 512]} Kxh7 15. Qh4+ Kg8 16. Ng5) 14... a6 $146 {[%mdl 8192] [#]} (14... h6 $14) ({Predecessor:} 14... Be7 15. Rad1 Rd8 16. Rxd8+ Nxd8 17. Qe8+ Bf8 18. Bxh7+ Kxh7 19. Qxf8 Bxf3 20. gxf3 Qb7 {1-0 (48) Filipovic,B (2378)-Hadzipasic,E (2076) Pula 2018}) 15. Bxh7+ $1 $18 {[%mdl 512]} Kxh7 16. Qh4+ Kg8 17. Ng5 {[%csl Gg5][%cal Rh4h7]} Rd8 18. Qh7+ Kf8 19. Qh8+ Ke7 20. Qxg7 {[%csl Gg5][%cal Rg7f7]} Rf8 21. Bh4 Ke8 22. Ne4 Be7 {intending ...Qc7.} 23. Rad1 {aiming for Bxe7.} (23. Bxe7 Kxe7 24. Rad1 Rg8 $18) 23... Bxh4 24. Nd6+ {[%mdl 64] Double Attack} Ke7 25. Nxc8+ Raxc8 26. Qg4 Bf6 {Now ...Rg8 and Black clings on.} 27. Rfe1 Rg8 28. Qf4 {Threatens to win with Qd6+.} e5 29. Qe3 b5 $2 (29... Nb8 30. g3 Nd7) 30. Qb6 {White is clearly winning.} Ba8 31. Qc5+ Ke8 32. Qd6 Ne7 33. Qxf6 Bxg2 34. Rxe5 {Black got outplayed after the opening.  Weighted Error Value: White=0.64/Black=0.54} 1-0

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "1.1"]
[White "Molenda, Marcin"]
[Black "Bondarets, Vadim"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2349"]
[BlackElo "2210"]
[Annotator "TA"]
[PlyCount "129"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,129,44,42,52,36,72,29,45,0,0,0,-7,-2,0,0,0,0,40,54,64,57,30,31,127,130,162,175,162,153,169,146,141,131,118,107,109,110,110,107,106,107,110,81,89,90,87,91,82,78,118,100,104,71,59,54,55,72,69,31,31,32,32,0,6,4,4,6,5,5,5,0,0,0,0,0,0,0,8,0,0,0,0,0,0,0,15,15,17,0,0,0,0,0,0,0,102,0,0,0,984,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,5065,5065]} 1. d4 d6 2. Nf3 f5 3. b3 Nf6 4. Bb2 e6 5. c4 Be7 6. g3 O-O 7. Bg2 c6 8. O-O Qe8 {A04: Unusual lines after 1 Nf3 and King's Indian Attack.} 9. Nc3 Nbd7 10. Ng5 {[#]} Nb6 $146 {White has an edge.} ({Predecessor:} 10... Bd8 11. e4 Ng4 12. Nf3 f4 13. h3 Nh6 14. g4 e5 15. b4 Nf7 16. d5 c5 {1-0 (51) Riedel,H (2180)-Mayer,H Baden 1996}) 11. e4 ({White should try} 11. a4 $14) 11... h6 $11 12. Nh3 fxe4 13. Nxe4 Nxe4 14. Bxe4 e5 15. Bg2 e4 16. d5 cxd5 17. cxd5 Qf7 18. Nf4 Bg5 {[#]} (18... Bf5 $14) 19. Nh5 $1 $16 Qxd5 20. Qxd5+ ({Weaker is} 20. Nxg7 Qxd1 21. Raxd1 d5 $14) 20... Nxd5 21. Bxe4 Nf6 22. Nxf6+ Bxf6 23. Bxf6 Rxf6 24. Rfe1 Rb8 25. Bd5+ Kf8 26. Rac1 Rf5 27. Red1 Re5 28. Rc7 {And now Rf7+ would win.} Re7 29. Rdc1 Bh3 30. Rxe7 Kxe7 {[%mdl 4096] Endgame KRB-KRB} 31. Rc7+ Kf6 32. f4 Rc8 33. Rxb7 Rc1+ 34. Kf2 Rc2+ 35. Ke3 Rxa2 36. b4 Ra3+ 37. Kd4 Ra1 38. Bf3 Ra3 39. Be4 a5 40. Rb6 axb4 41. Rxd6+ Ke7 42. Rb6 Ra4 43. Bd5 b3+ 44. Ke5 Ra5 45. Rb7+ ({Avoid the trap} 45. Rxb3 $2 {[#]} Rxd5+ $1 {[%mdl 512]} 46. Kxd5 Be6+ 47. Ke4 Bxb3 $19) 45... Ke8 46. Rxb3 Bg2 $1 {[%cal Rg2d5]} 47. Rd3 Ke7 48. f5 h5 49. Rd2 Bxd5 50. Rxd5 $11 {KR-KR} Ra2 51. h3 Ra3 52. Kf4 h4 53. g4 {Threatens to win with Re5+.} Rxh3 54. Kg5 Ra3 (54... Rh1 $1 $11 {keeps the balance.}) 55. Kg6 (55. Kxh4 $16 Kf7 56. Rd7+ Kf6 57. Rd6+ Kf7 58. g5) 55... h3 {aiming for ...Rg3.} 56. Kxg7 Rg3 $2 {[%mdl 8192]} (56... h2 $11 57. f6+ Ke6) 57. Re5+ $2 (57. f6+ $18 Ke6 58. Rd4) 57... Kd7 {...h2 is the strong threat.} 58. f6 {Black must now prevent Re4.} Rxg4+ 59. Kf7 Rh4 60. Rd5+ Kc6 61. Rd1 h2 62. Ke7 h1=Q 63. Rxh1 Rxh1 64. f7 Rh4 $2 {[%mdl 8192]} (64... Re1+ $11 65. Kf6 Rf1+ 66. Ke7 Rf5) 65. f8=Q {Weighted Error Value: White=0.20/Black=0.12} 1-0

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "1.1"]
[White "Suslov, Evgeniy"]
[Black "Lukasik, Zuzanna"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2236"]
[BlackElo "1643"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,55,30,29,77,54,122,81,63,56,66,62,79,60,63,69,140,145,135,118,122,40,302,135,127,133,122,116,173,139,127,120,131,117,128,125,123,112,114,109,110,98,29987,29988,29988,29989]} 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 cxd4 5. Nxd4 e5 6. Nxc6 bxc6 7. c4 {[%cal Rc4d5]} Bb7 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} 8. O-O Ne7 (8... Qd7 $14) 9. cxd5 cxd5 {White is better.} 10. Nc3 Qd7 11. Qb3 {[#]} Bc6 $146 ({Predecessor:} 11... Rb8 12. Rd1 d4 13. e3 Nc6 14. Qb5 Bd6 15. Ne4 O-O 16. exd4 exd4 17. Nxd6 Qxd6 {1-0 (29) Orzechowski,J (2244)-Tumolewska,K (1800) Poland 2005}) 12. e3 Rd8 13. Rd1 Qe6 (13... f5 $14) 14. Bd2 $1 $16 g6 15. Rac1 {Threatens to win with Nb5.} Bg7 16. Qa3 (16. Nb5 $16 O-O 17. Nxa7) 16... Ra8 $2 {[%mdl 8192] [#]} (16... O-O $14) 17. Na4 (17. e4 $1 $18 {[%cal Re4d5] and the rest is easy.} O-O 18. Bg5) 17... O-O 18. Bb4 Bxa4 19. Qxa4 {Rc7 is the strong threat.} Rfd8 (19... Rfc8 $16 {was necessary.}) 20. Bxe7 Qxe7 21. Bxd5 Rab8 22. b3 Rbc8 23. Rxc8 Rxc8 24. Bc4 {aiming for Rd7!} Rc7 25. Qb5 h5 26. Qd5 Kf8 $2 {[%mdl 8192] [#]} (26... e4 $16) 27. Qa8+ $1 Qe8 {[#]} 28. Rd8 $1 {Weighted Error Value: White=0.22/Black=0.67} 1-0

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "1.1"]
[White "Mukha, Nikolay"]
[Black "Nowak, Lukasz"]
[Result "0-1"]
[ECO "E05"]
[WhiteElo "2163"]
[BlackElo "2265"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,50,8,14,15,27,-15,-8,-15,-8,-8,-24,-25,-24,-61,-19,-105,-100,-102,-29,-271,-271,-367,-351,-359,-233,-228,-200,-422,-439,-415,-402,-378,-395,-637,-637,-637,-637,-637,-637]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O dxc4 7. Qc2 b5 8. a4 {E05: Open Catalan: 5 Nf3 Be7.} b4 9. Qxc4 Ba6 10. Qc2 {The position is equal.} Nbd7 {[%cal Bb8d7,Bd7e5,Be5c4][%mdl 32]} 11. Ne5 Nxe5 12. Bxa8 Qxd4 13. Bg2 c5 14. Be3 (14. Bf4 $1 $11 {remains equal.}) 14... Qc4 $36 {[%mdl 2048] [#] Keeping White busy.} 15. Rc1 $146 ({Predecessor:} 15. Qxc4 Nxc4 16. Bc1 Rd8 17. Bf3 Ne5 18. Re1 Nxf3+ 19. exf3 Bb7 20. Nd2 Rd3 21. Re3 {½-½ (67) Carrai,G (1820)-Bonade,M (2079) Codogno 2011}) 15... Rd8 ({Of course not} 15... Qxe2 $6 16. Qxe2 Bxe2 17. Bxc5 $11) ({Black should try} 15... Nd5 $17 16. Qd2 {[#]} Nxe3 $1 {[%mdl 512]} 17. Qxe3 (17. Rxc4 $2 N5xc4 18. Qc1 Bf6 $17) 17... Qxe2 18. Qxe2 Bxe2) 16. Qxc4 $2 {[#] Now White is beyond hope.} (16. Nd2 $1 $11 Qxe2 17. Nb3 (17. Bf1 $2 Qh5 $19)) 16... Nxc4 $19 17. b3 Nxe3 18. fxe3 Ng4 ({Weaker is} 18... Bxe2 19. Ra2 $17) 19. Bf3 Nxe3 {White must now prevent ...c4.} 20. Kf2 $2 (20. Ra2) 20... c4 21. Nd2 Rxd2 22. Kxe3 c3 23. Rd1 $2 (23. Kf2 Rb2 24. Ke1) 23... Bg5+ {Black is clearly winning.} 24. Kf2 {Now Rxd2 and White clings on.} Rxd1 25. Rxd1 c2 {Weighted Error Value: White=0.53/Black=0.23} 0-1

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "1.1"]
[White "Piekielny, Pawel"]
[Black "Obodchuk, Andrei"]
[Result "1-0"]
[ECO "C89"]
[WhiteElo "2098"]
[BlackElo "2299"]
[Annotator "TA"]
[PlyCount "157"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,157,34,16,11,18,20,21,17,19,17,12,27,-22,-28,-28,-6,-15,0,0,7,0,45,35,40,20,29,29,25,23,34,22,16,21,23,25,35,34,49,35,35,27,85,97,162,159,154,152,162,64,64,62,56,42,75,75,75,75,91,90,109,91,124,124,150,45,59,59,67,45,45,45,46,23,23,8,8,10,10,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,0,8,0,8,8,29978,29979,29978,29979,29979,29980,29985,29986,29985,29986]} 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 9. d4 (9. exd5 {is more complex.} Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d4) 9... dxe4 {C89: Closed Ruy Lopez: Marshall Attack.} 10. Nxe5 Nxe5 11. dxe5 Qxd1 {The position is equal.} 12. Bxd1 Nd7 13. Rxe4 {is now debated instead of 13.Bc2.} Nc5 {[#]} 14. Re1 $146 ({Predecessor:} 14. Re2 Bg4 15. f3 Bf5 16. Be3 Rfd8 17. Nd2 Bd3 18. Rf2 Bg6 19. f4 Nd3 20. Rf1 Nxb2 {½-½ (48) Ponkratov,P (2632)-Aronian,L (2775) Moscow 2019}) 14... Nd3 {[%mdl 64] Double Attack} 15. Rf1 $1 Nxc1 16. Bf3 Bf5 {Threatens to win with ...Nd3.} 17. Rxc1 Rad8 18. a4 Bc5 19. axb5 axb5 20. Ra5 Rfe8 21. b4 Bb6 22. Rxb5 Bd3 23. Rd5 Rxd5 24. Bxd5 Rxe5 25. Bf3 g5 26. Nd2 f5 {next ...g4 is good for Black.} 27. h3 Kg7 28. Nb3 Kg6 (28... Bc4 $11 29. Nd2 Bf7) 29. c4 $16 g4 (29... c5 $16) 30. hxg4 $18 fxg4 31. Bxg4 {And now c5 would win.} Re4 32. Bf3 (32. c5 $1 $18 {[%cal Rc5b6]} Ba7 33. Bd7 Rxb4 34. Ra1) 32... Rxc4 $14 33. Rxc4 Bxc4 {[%mdl 4096] Endgame KBB-KBN} 34. Be4+ Kg7 35. Nc5 h6 36. f4 Kf6 37. Kf2 Ke7 38. Ke3 Kd6 {[#]} 39. Kd4 $1 {[%cal Rd4c4]} Bf7 40. g4 ({White should try} 40. f5 $16) 40... Bg8 41. Bd3 {Hoping for Bc4.} Be6 42. g5 hxg5 43. fxg5 c6 44. g6 Ke7 $1 45. Bc4 Bxc4 $1 46. Kxc4 $11 {KB-KN} Ba7 47. Nd3 Kf6 48. Ne5 Bg1 49. Nxc6 Kxg6 50. Kd5 Kf7 51. Kd6 Ke8 52. Kc7 Bh2+ 53. Kc8 Bg1 54. b5 Bf2 55. Nb4 Bg1 56. Nd3 Ke7 57. Kc7 Bh2+ 58. Kc6 Bg1 59. Nc5 Kd8 60. b6 Bh2 61. b7 {White wants to mate with Ne6+. Cut Off at move 61} Ke7 62. Na6 {White threatens Nc7 and mate.} Kd8 63. Nb4 Ke7 64. Nd5+ $1 Kd8 65. Nc3 Ke7 66. Nb5 {Intending Nc7 and mate.} Bb8 $1 67. Nc7 {Black must now prevent Na6.} Kd8 68. Ne6+ Ke7 69. Nd4 Kd8 70. Nf5 Ke8 71. Nd6+ Kd8 72. Nb5 Ke7 73. Nc3 Ke8 74. Ne4 Kd8 $2 {[%mdl 8192] [#] Loses the game.} (74... Ke7 $11) 75. Nc5 $1 {White mates.} Ba7 76. Na6 Ke7 77. Kc7 Bg1 78. Kc8 Ba7 79. Nc7 {Weighted Error Value: White=0.10/Black=0.09} 1-0

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "1.1"]
[White "Szalko, Maciej"]
[Black "Kaydanovich, Marina"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "1946"]
[BlackElo "1734"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,67,23,22,48,49,55,41,59,54,56,60,51,52,59,62,64,58,58,82,87,85,88,96,83,92,112,-35,-18,-63,87,83,139,134,137,136,202,203,185,197,195,165,324,275,272,214,560,560,610,561,589,538,724,714,1579,1553,1318,1299]} 1. d4 d5 2. c4 e6 3. g3 Nf6 4. Nf3 dxc4 5. Bg2 c5 6. O-O Nc6 7. Qa4 Be7 {E04: Open Catalan: 5 Nf3.} 8. dxc5 Bxc5 9. Qxc4 Qb6 {White is slightly better.} 10. Nc3 {[#]} Qb4 $146 ({Predecessor:} 10... Na5 11. Qd3 Bd7 12. a3 Nb3 13. Rb1 Nxc1 14. Rbxc1 Rd8 15. Qc2 Ng4 16. Ne4 Be3 {0-1 (57) Hastie,S (1556)-Masilela,M (1099) Boksburg 2018}) 11. Qd3 O-O 12. a3 Qg4 13. Bg5 Be7 14. h3 Qh5 15. Rfd1 Qg6 16. Qb5 h6 {[#] And now ...a6 would win.} 17. Bf4 a6 18. Qc4 Qf5 19. b4 (19. Nd4 $16 Nxd4 20. Rxd4 (20. Qxd4 Rd8 $16)) 19... e5 $15 {aiming for ...Be6.} 20. e4 Nxe4 (20... Qh5 $1 $15 {stays ahead.} 21. Be3 Bxh3 22. Bxh3 Qxh3) 21. Nxe5 $1 $16 ({Don't play} 21. Qxe4 $6 Qxe4 22. Nxe4 exf4 $11) 21... Nxc3 (21... Nxe5 $142 22. Qxe4 Qxe4 23. Nxe4 (23. Bxe4 Nc4 $16) 23... Nc4) 22. Nxc6 ({Much worse is} 22. Qxc3 $6 Bf6 $11) 22... bxc6 23. Qxc3 Bf6 (23... Ra7 $16) 24. Qxc6 $18 Bxa1 25. Qxa8 Qf6 26. Qc6 Qb2 $2 {[#]} (26... Qxc6 27. Bxc6 Bf6) 27. Bd6 Rd8 28. Re1 Be6 $2 (28... Qf6 {is tougher.} 29. Re8+ Kh7) 29. Be5 {White is clearly winning.} Qxe5 30. Rxe5 Bxe5 31. Qxa6 Rd1+ 32. Kh2 Rd2 33. Qa8+ Kh7 34. Qe4+ {[%mdl 64] Double Attack.  Weighted Error Value: White=0.20/Black=0.49} 1-0

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "1.1"]
[White "Stolarczyk, Anna"]
[Black "Sovietova, Kateryna"]
[Result "1-0"]
[ECO "D46"]
[WhiteElo "1909"]
[BlackElo "1338"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,74,28,6,14,16,37,19,110,75,177,0,7,-58,-66,-73,-77,-53,28,8,8,4,41,41,75,-66,-62,-61,27,30,45,5,75,73,107,97,156,68,60,50,102,69,85,69,202,202,204,210,780,122,127,120,364,352,657,628,29985,29986,29997,29998,29998,29999,29999]} 1. d4 d5 2. Nf3 Nf6 3. e3 c6 4. c4 e6 5. Nc3 Be7 6. Bd3 O-O 7. O-O Nbd7 8. Re1 {8.e4 is the modern continuation.} dxc4 {D46: Semi-Slav: 5 e3 Nbd7 6 Bd3, Black avoids the Meran.} 9. Bxc4 Qc7 10. e4 Re8 {[#]} (10... e5 $11 {keeps the balance.}) 11. Qc2 $146 ({Predecessor:} 11. b3 a6 12. Bb2 b5 13. Bd3 Bb7 14. Rc1 Nb6 15. h3 Rac8 16. Qc2 h6 17. Ne5 {0-1 (41) De Carvalho,T (1531)-Gimni,J (1778) Pirai do Sul 2017}) 11... h6 (11... Nf8 $16 {might work better.}) 12. b3 $2 (12. e5 $1 $18) 12... e5 $11 13. dxe5 (13. Ne2 $11) 13... Nxe5 $15 14. Nxe5 Qxe5 15. f4 Qc7 (15... Bc5+ $15 16. Kh1 Qh5) 16. e5 $36 {[%mdl 2048] White is more active.} Nd5 17. Ne4 Qb6+ 18. Kh1 $1 Bf5 {[#]} 19. Bxd5 (19. Nf6+ $1 $16 {[%mdl 512]} Bxf6 (19... Nxf6 20. Qxf5) 20. Qxf5) 19... cxd5 {[#]} 20. Nf6+ $1 {[%mdl 512]} Bxf6 ({Black should play} 20... Qxf6 $1 $15 21. exf6 Bxf6) 21. Qxf5 $11 Be7 22. Bb2 g6 (22... Qf2 $11 23. e6 {[%mdl 64] Discovered Attack} Rf8) 23. Qd3 $16 Rad8 24. f5 {e6 is the strong threat.} gxf5 {[#]} (24... d4 $142) 25. Qxf5 (25. e6 $1 $16 {[%cal Re6f7] Strongly threatening exf7+.} fxe6 26. Qg3+ Bg5 27. h4 {[%mdl 64] Pin}) 25... Qg6 $14 26. Qf2 Kh7 (26... b6 $14) 27. Rac1 b6 28. Rf1 {Black must now prevent Rc6.} Rf8 ({Better is} 28... Bc5 $14 29. Qxf7+ Qxf7 30. Rxf7+ Kg8) 29. Rc7 $1 $18 {[%csl LRa7,LRe7][%mdl 64] Double Attack} Bc5 {[#]} 30. Qd2 $1 ({Not} 30. Rxf7+ Kg8 $11) 30... a5 $2 (30... Rc8 31. Rxa7 Kg8 32. Qxd5 (32. b4 Be3 $16) 32... Rcd8) 31. Bc1 $2 (31. Rf6 $18 {and White stays clearly on top.} Qh5 32. e6) 31... Bb4 $16 32. Qd4 {Threatens to win with a3.} Bc5 $2 (32... Rc8 $16 {was necessary.} 33. Rxc8 Rxc8) 33. Qh4 $18 {Hoping for Rf6.} Rde8 $2 (33... Qd3 34. Rfxf7+ Rxf7 35. Qxh6+ (35. Rxf7+ Kg8 $14) 35... Kg8 36. Qg5+ {[%mdl 64] Double Attack} Kh8 37. Qxd8+ Bf8 38. Qh4+ Kg8 39. Qg5+ Kh8 40. Qh5+ {[%mdl 64] Double Attack} Rh7 41. Rxh7+ Qxh7) 34. Rf6 Be7 35. Rxe7 {White mates.} Qc2 36. Rxh6+ Kg7 37. Qf6+ Kg8 38. Rh8# {Weighted Error Value: White=0.62/Black=0.67} 1-0

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "1.2"]
[White "Tazbir, Marcin"]
[Black "Yarmonov, Igor"]
[Result "1/2-1/2"]
[ECO "B11"]
[WhiteElo "2513"]
[BlackElo "2391"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[WhiteTeam "Poland"]
[BlackTeam "Ukraine"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "UKR"]

{[%evp 9,78,0,27,24,22,33,20,-3,33,33,40,26,40,27,32,29,33,20,136,54,81,86,85,80,94,98,102,89,86,100,85,78,105,93,95,91,115,115,111,104,111,109,153,142,160,148,163,165,189,151,239,244,226,237,211,42,102,8,8,8,7,0,0,0,0,0,0,0,0,0,0]} 1. e4 c6 2. Nc3 d5 3. Qf3 dxe4 4. Nxe4 Nf6 5. Bc4 e6 (5... Nbd7 {is interesting.} 6. Bb3 a5 7. a4 e6 8. d4 c5) 6. Nxf6+ {B11: Caro-Kann: Two Knights Variation.} Qxf6 7. Qxf6 gxf6 8. Ne2 Bd6 9. d4 Nd7 {[#]} 10. c3 $146 ({Predecessor:} 10. Bf4 Bxf4 11. Nxf4 b5 12. Bd3 Nb6 13. O-O-O Bb7 14. Rhe1 O-O-O 15. c3 f5 16. Be2 {0-1 (69) Castillo Rodriguez,A (1805)-Buendia Pinar,A (1999) Salobrena 2012}) 10... b6 11. Bf4 Bxf4 12. Nxf4 Bb7 13. f3 e5 {[#]} (13... c5 $11 {keeps the balance.}) 14. dxe5 (14. Nh5 $1 $16) 14... fxe5 15. Nh5 b5 16. Bb3 Nc5 17. O-O-O Ke7 18. Rhe1 f6 19. f4 Rhd8 20. fxe5 Nxb3+ 21. axb3 Rxd1+ 22. Kxd1 fxe5 23. Rxe5+ $16 {[%mdl 4096] Endgame KRB-KRN} Kd6 24. Rf5 c5 25. Nf4 a5 26. g3 Be4 27. Rf6+ Ke5 28. Re6+ Kf5 29. Rh6 a4 (29... Rd8+ $16 {was worth a try.} 30. Ke2 Bc2) 30. bxa4 $18 bxa4 31. Rxh7 Kg4 32. Rh5 $2 (32. Rh4+ $18 Kf3 33. Ne6) 32... Rb8 (32... Kf3 $14) 33. Kc1 ({Much worse is} 33. Rxc5 $6 Rxb2 34. Rc4 Kf3 $11) (33. Re5 $16 a3 34. Rxe4 (34. bxa3 Kf3 $11) 34... axb2 35. Nd3+ {[%mdl 64] Discovered Attack} Kf3 36. Rf4+ Ke3 37. Nxb2 Rxb2 38. h4) 33... a3 $1 $11 {[%cal Ra3b2] The position is equal.} 34. bxa3 Kf3 $1 35. Rxc5 {[#] Black must now prevent c4.} Rb1+ 36. Kd2 {aiming for Nd3.} Rb2+ 37. Kc1 Rb1+ 38. Kd2 {Threatens to win with Nd3.} Rb2+ 39. Kc1 Rb1+ {Blacks defense is rewarded with a draw.  Weighted Error Value: White=0.24/Black=0.20} 1/2-1/2

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "1.2"]
[White "Nowak, Lukasz"]
[Black "Sovetov, Oleksandr"]
[Result "1-0"]
[ECO "A11"]
[WhiteElo "2265"]
[BlackElo "2022"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[WhiteTeam "Poland"]
[BlackTeam "Ukraine"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "UKR"]

{[%evp 10,102,11,15,0,0,0,16,0,12,7,0,8,2,46,39,47,41,34,35,47,35,41,48,44,32,47,22,14,22,21,18,14,0,0,0,63,26,94,94,94,95,105,100,93,56,97,87,92,95,87,19,20,6,8,0,518,522,1679,1428,1730,1728,1575,1538,1368,1434,29973,29975,29979,29980,29980,29981,29981,29981,29985,29986,29986,29986,29990,29986,29989,29990,29990,29991,29993,29994,29994,29995,29995,29995,29996,29996,29998,29999,29999]} 1. c4 c6 2. g3 d5 3. Nf3 Nf6 4. Bg2 dxc4 5. O-O Nbd7 6. Qc2 Nb6 {A11: English Opening: 1...c6.} 7. a4 a5 8. Na3 Be6 {The position is equal.} 9. Ne5 g6 10. Naxc4 Nxc4 11. Nxc4 {[#]} h5 $146 ({Predecessor:} 11... Bg7 12. d3 Nd5 13. Bd2 O-O 14. Rfc1 b6 15. Ne3 c5 16. Nxd5 Bxd5 17. Bxd5 Qxd5 {0-1 (45) Zaragatski,I (2474)-Michiels,B (2502) Netherlands 2012}) 12. b3 h4 13. Bb2 Bg7 14. Rfd1 Kf8 15. d4 hxg3 16. hxg3 Ra6 17. e4 Qc8 18. d5 cxd5 19. exd5 Bh3 $1 {[%cal Rh3g2]} 20. Bf3 Bg4 21. Qd3 Bxf3 22. Qxf3 {[#] aiming for d6.} Qh3 ({Black should try} 22... Ne8 $11) 23. d6 Qh2+ (23... exd6 $11 24. Qxb7 Ne8) 24. Kf1 $16 Qh3+ 25. Qg2 {Hoping for Qxh3.} exd6 26. Qxh3 ({Don't play} 26. Nxd6 $6 Ng4 $11) 26... Rxh3 27. Rxd6 Rxd6 28. Nxd6 b6 {[%cal Bb7b6,Bb6b5][%mdl 32]} 29. Kg2 Rh5 30. Re1 (30. Nc4 $16) 30... Rd5 $11 31. Nc8 {And now Ba3+ would win.} b5 32. Be5 {Black must now prevent Bd6+.} Nd7 $2 {[%mdl 8192] White now steadily converts the win.} (32... bxa4 $11 {and Black has nothing to worry.} 33. bxa4 Rd2) 33. Bd6+ $18 Kg8 34. Ne7+ {[%mdl 64] [#] Double Attack} Kh7 35. Nxd5 bxa4 36. bxa4 g5 37. Re7 {[%mdl 64] Double Attack} Nf6 38. Nxf6+ {White mates.} Bxf6 39. Rxf7+ Kg6 40. Ra7 Bc3 41. Bc7 Kh5 42. Bxa5 Bd4 43. Rb7 Kg4 44. Bb4 Be5 45. a5 Kf5 46. a6 Ke4 47. a7 g4 48. a8=Q Kd3 49. Qd8+ Bd4 50. Bc5 Ke2 51. Qxd4 {[%cal Rb7e7]} Ke1 52. Re7# {Weighted Error Value: White=0.10/Black=0.50} 1-0

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "1.2"]
[White "Mukha, Nikolay"]
[Black "Molenda, Marcin"]
[Result "0-1"]
[ECO "D46"]
[WhiteElo "2163"]
[BlackElo "2349"]
[Annotator "TA"]
[PlyCount "150"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[WhiteTeam "Ukraine"]
[BlackTeam "Poland"]
[WhiteTeamCountry "UKR"]
[BlackTeamCountry "POL"]

{[%evp 22,150,68,58,91,95,76,52,49,12,7,17,81,39,32,9,0,-2,56,48,36,42,37,14,59,35,11,0,0,0,0,0,0,0,0,0,0,0,0,-29,-8,-27,-29,-28,-34,-38,-15,-14,-14,-29,-25,-92,-86,-199,-194,-203,-192,-376,-372,-343,-323,-336,-308,-322,-319,-319,-319,-267,-297,-455,-446,-441,-436,-424,-340,-298,-358,-354,-345,-340,-345,-331,-331,-369,-348,-340,-332,-604,-593,-520,-304,-320,-173,-156,0,-324,-298,-231,-125,-401,-183,-501,-435,-383,-141,-1083,-1061,-1061,-1068,-1061,-68,-512,-68,-83,-83,-83,-89,-12833,-12831,-12792,-4645,-29982,-29983,-29983,-29984,-29984,-29985,-29989,-29990,-29990,-29991]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 Bd6 7. O-O O-O 8. e4 dxe4 9. Nxe4 Nxe4 10. Bxe4 Nf6 $1 {10...Nf6 scores better than 10...h6.} 11. Bc2 b6 12. Bg5 Bb7 {D46: Semi-Slav: 5 e3 Nbd7 6 Bd3, Black avoids the Meran.} 13. Qd3 g6 {[#]} 14. c5 $146 ({Predecessor:} 14. Rad1 Be7 15. Qe2 Re8 16. Ne5 Nd7 17. Qf3 f6 18. Nxc6 Qc8 19. Nxe7+ Rxe7 20. Qa3 {½-½ (75) Delchev,A (2640)-Megaranto,S (2524) Turin 2006}) 14... Be7 {White is slightly better.} 15. Qe2 bxc5 16. dxc5 Qa5 (16... Nd5 $11 17. Bxe7 Qxe7) 17. b4 Qc7 18. Rfe1 a5 19. a3 Ba6 ({Better is} 19... axb4 $11 20. axb4 Nd5) 20. Qe5 $14 Qxe5 21. Nxe5 Rfc8 22. Ba4 Bb5 23. Bxb5 (23. Bb3 {with more complications.} Rc7 24. a4 Ba6 25. bxa5 h6 26. Bxh6 Bxc5 27. Bg5) 23... cxb5 24. Rab1 axb4 25. axb4 Nd5 26. Bxe7 Nxe7 27. Ra1 Nd5 28. Nd3 Ne7 29. Kf1 Nc6 30. Reb1 Rd8 31. Rxa8 Rxa8 $11 {[%mdl 4096] Endgame KRN-KRN} 32. Rb2 e5 33. f4 f6 34. fxe5 fxe5 35. Ke2 Kf7 36. Ke3 (36. Kd2 $11 {remains equal.}) 36... Ke6 $17 37. g4 (37. Ne1 $17) 37... Ra3 $19 38. Ke4 Rc3 39. h3 $2 (39. Rd2 Rc4+ 40. Ke3) 39... Rc4+ 40. Ke3 Kd5 41. Rd2 {[%csl Ge3][%cal Rd3f4]} Re4+ 42. Kf3 {Nf4+ is the strong threat.} Rd4 {Threatens to win with ...e4+.} 43. Ke3 e4 44. Nf4+ Ke5 45. Ra2 ({Much worse is} 45. Rxd4 Nxd4 46. Ne2 Nc2+ 47. Kd2 Nxb4 $19) (45. Ne2 {is a better defense.} Rxd2 46. Kxd2) 45... Rxb4 46. Ne2 Rb3+ 47. Kd2 Nd4 48. Nxd4 Kxd4 {KR-KR} 49. Rc2 {aiming for c6.} Ra3 ({And not} 49... Rxh3 50. c6 $11) 50. c6 {Black must now prevent c7.} Ra8 $1 {[%cal Ra8c8]} ({Avoid the trap} 50... Rxh3 $2 51. c7 $18) 51. c7 Rc8 52. Rc6 Kd5 53. Rc1 Kd6 54. Ke3 $2 (54. Re1 Rxc7 55. Rxe4) 54... Rxc7 55. Rb1 Rc5 56. Kxe4 Ke6 (56... Rc4+ $142 57. Kd3 Kc5) 57. Kd4 Kd6 $2 (57... Rd5+ $17 58. Kc3 Kd6) 58. Rf1 $2 {[%mdl 8192]} (58. Ke4 $1 $11 {and White is okay.}) 58... Rc4+ 59. Kd3 Rc7 (59... Ra4 $19 60. Kc2 Ra3) 60. g5 $2 {[%mdl 8192]} (60. Kd4 $17) 60... Ke5 (60... Rc4 $142 61. Rf6+ Kc5) 61. Rf8 $2 {Cut Off at move 61} (61. Rb1) 61... b4 62. Rb8 Kf5 $2 (62... Rc3+ $19 {and Black stays clearly on top.} 63. Kd2 Rc4) 63. Rxb4 $2 {[%mdl 8192]} (63. Rb5+ $17 Kf4 64. h4) 63... Kxg5 64. h4+ Kh5 65. Ke3 Rf7 $2 ({Black should try} 65... Rc3+ $1 $19 66. Kf2 Rh3) 66. Re4 $2 {[%mdl 8192]} (66. Ke2 $1 $15) 66... h6 $2 ({Black should play} 66... Rf1 $1 $19 {[%cal Rf1e1] And now ...Re1+ would win.} 67. Rb4 Rh1) 67. Ke2 $1 $15 g5 68. hxg5 hxg5 69. Ke1 $2 {[%mdl 8192]} (69. Rc4 $17) 69... g4 $19 70. Re2 Kh4 (70... g3 $142 71. Re8 g2 72. Rh8+ Kg4) 71. Rf2 Rxf2 {Black mates.} 72. Kxf2 Kh3 73. Kg1 Kg3 74. Kh1 {[#]} Kf2 $1 75. Kh2 {[#]} g3+ $1 {Weighted Error Value: White=0.47/Black=0.26} 0-1

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "1.2"]
[White "Palin, Denis"]
[Black "Szewczyk, Malwina"]
[Result "1-0"]
[ECO "A34"]
[WhiteElo "2110"]
[BlackElo "1418"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[WhiteTeam "Russia"]
[BlackTeam "Poland"]
[WhiteTeamCountry "RUS"]
[BlackTeamCountry "POL"]

{[%evp 10,53,18,22,17,22,36,34,87,63,133,140,252,260,247,227,319,309,379,337,631,627,710,579,585,443,695,684,759,666,870,867,869,871,1066,1049,1246,969,2011,1968,3561,1768,29987,29988,4389,2843]} 1. c4 c5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nc7 6. e3 e5 {The main line 6...e5 scores better than 6...Nc6. A34: Symmetrical English: 2 Nc3, lines with ...d5.} 7. Nge2 Nc6 8. O-O {[#]} Bd7 $146 ({Black should play} 8... Be7 $14) ({Predecessor:} 8... Be7 9. b3 O-O 10. Bb2 Bf5 11. f4 Bd3 12. fxe5 Nxe5 13. Bxb7 Rb8 14. Bg2 h5 {1-0 (41) Tadic,B (2563)-Perunovic,M (2693) Belgrade 2015}) 9. f4 f6 ({Better is} 9... Be7 $14) 10. fxe5 $16 Be7 (10... Nxe5 $16 11. d4 (11. Bxb7 Rb8 $16) 11... Nf7 12. Bxb7 Rb8) 11. exf6 $18 Bxf6 12. Ne4 O-O (12... Qe7 {keeps fighting.} 13. d4 cxd4 14. Nxf6+ (14. exd4 Bg4 $18) (14. Nxd4 O-O $16) 14... gxf6 15. Nxd4 (15. exd4 Bg4 $16) 15... h5 16. Nxc6 Bxc6 17. Bxc6+ bxc6) 13. Nxc5 Bc8 14. d4 Nd5 $2 (14... Kh8 15. Bd2 Bg4) 15. Qb3 Nce7 16. e4 {[%mdl 64] [#] Pin} Bg4 17. Bf3 Bh3 (17... Qc8 $142 18. Nd3 Bxf3) 18. Rf2 Nc6 19. Be3 Kh8 20. exd5 Na5 21. Qd3 Qe7 22. Nf4 b6 23. Nce6 Rf7 24. Nxh3 Qb4 25. a3 Qd6 {[#]} 26. Nhg5 $1 {[%csl Gg5][%cal Rd3h7]} g6 27. Nxf7+ {Black did not feel at home in the position after the opening.  Weighted Error Value: White=0.33/Black=0.95} 1-0

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "1.2"]
[White "Piekielny, Pawel"]
[Black "Babarykin, Stanislav"]
[Result "1/2-1/2"]
[ECO "C89"]
[WhiteElo "2098"]
[BlackElo "2387"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[WhiteTeam "Poland"]
[BlackTeam "Russia"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "RUS"]

{[%evp 17,90,36,46,0,4,12,23,14,4,0,30,20,13,20,28,24,28,19,22,27,30,34,34,20,25,25,43,16,23,22,19,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Bc5 6. c3 O-O 7. Re1 b5 8. Bb3 d5 9. exd5 Nxd5 10. d4 {C89: Closed Ruy Lopez: Marshall Attack.} exd4 11. cxd4 Be7 (11... Ba7 {seems wilder.} 12. Bg5 Nf6 13. d5 Na5 14. Bc2 h6) 12. Bxd5 {White has an edge.} Qxd5 13. Nc3 Qd8 14. d5 Na5 15. Bf4 Bg4 16. Rc1 Nc4 17. b3 {[#]} Bd6 $146 ({Predecessor:} 17... Nd6 18. Qd3 Bf5 19. Qd2 Bf6 20. Nd4 Bxd4 21. Qxd4 Re8 22. Rxe8+ Qxe8 23. h3 Qe7 24. Nd1 Ne8 25. Ne3 Rd8 26. Nxf5 {1-0 (26) Lawrence,R (2181)-Mihai,P (2166) ICCF email 2006}) 18. Qd4 {[#] And now Bxd6 would win.} Bxf3 19. bxc4 Qh4 20. Be5 Qxd4 $1 21. Bxd4 Bg4 22. cxb5 (22. h3 $5 {[%cal Rh3g4]} Bf5 23. cxb5 $14) 22... axb5 23. Nxb5 Rxa2 {The position is equal.} 24. Bc5 Bxc5 25. Rxc5 Ra5 {[#] ...Be2! is the strong threat.} 26. Rec1 Rb8 27. h3 Raxb5 28. hxg4 {Threatens to win with Rxb5.} Kf8 29. Rxb5 Rxb5 30. Rxc7 Rxd5 $11 {[%mdl 4096] Endgame KR-KR} 31. Kh2 h5 32. gxh5 Rxh5+ 33. Kg3 g6 34. f4 Kg7 35. Ra7 Rc5 36. Ra3 g5 37. fxg5 Rxg5+ 38. Kf3 (38. Kf4 {with more complications.} Rg6 39. g4 Re6 40. Kf5 Rf6+ 41. Kg5) 38... Rg6 39. Ra4 Rf6+ 40. Rf4 Rxf4+ 41. Kxf4 Kg6 42. g4 f6 43. Kf3 Kg5 44. Kg3 f5 45. gxf5 Kxf5 {Weighted Error Value: White=0.03/Black=0.02} 1/2-1/2

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "1.2"]
[White "Kasperczyk, Szymon"]
[Black "Smirnov, Alexey"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1790"]
[BlackElo "2436"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[WhiteTeam "Poland"]
[BlackTeam "Russia"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "RUS"]

{[%evp 15,81,-14,-7,-41,-32,-28,-27,-75,-56,-98,-93,-145,-143,-140,-145,-141,-142,-157,-157,-155,-153,-164,-171,-168,-156,-161,-161,-165,-156,-169,-162,-168,-152,-174,-160,-225,-209,-358,-376,-377,-367,-358,-254,-555,-530,-683,-683,-2271,-2232,-1346,-1504,-29987,-29988,-29989,-29990,-29990,-29991,-29993,-29994,-29994,-29995,-29996,-29995,-29995,-29995,-29998,-29999,-29999]} 1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Nc6 5. c3 Qb6 6. Qb3 c4 7. Qxb6 axb6 8. Na3 Bf5 9. Nb5 {Black must now prevent Nc7+. D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Ra5 10. a4 $1 Bc2 (10... e6 {with more complications.} 11. Be2 Bc2 12. Bd1 Bxd1 13. Kxd1 Be7) 11. Ne5 {Nc7+ is the strong threat.Black has an edge.} Nxe5 12. Bxe5 {[#]} Bxa4 $146 ({Predecessor:} 12... Nh5 13. Be2 Nf4 14. exf4 e6 15. Bd1 Bxd1 16. Kxd1 Bc5 17. f3 Ke7 18. Kc2 h5 19. b4 cxb3+ 20. Kxb3 h4 {½-½ (20) Goswami,V (2199)-Singh,G (2295) Kuala Lumpur 2011}) 13. Bxf6 (13. Nc7+ $142 Kd8 14. Bxf6 Kxc7 15. Be5+ Kc6 16. e4) 13... Bxb5 $17 {[%mdl 64] Discovered Attack} ({Not} 13... gxf6 14. Nc7+ Kd8 15. Nxd5 $1 $16 {[%mdl 512]}) 14. Rxa5 bxa5 15. Be5 f6 16. Bc7 {[#]} a4 $1 17. Be2 Kd7 18. Bg3 e6 19. Kd2 Be7 20. Ra1 Bc6 21. Bd1 b5 {[%cal Bb7b5,Bb5b4,Bb4b3][%mdl 32]} 22. f3 Ra8 23. Bc2 h6 24. h3 b4 25. Kc1 (25. cxb4 $17 Bxb4+ 26. Kc1) 25... b3 $19 26. Bd1 (26. Bg6 {is the only way for White.}) 26... a3 27. bxa3 Bxa3+ 28. Kb1 g5 29. Be1 $2 (29. f4 {was the crucial defense.}) 29... Kc7 30. Bd2 Be8 {( -> ...Bg6+)} 31. Bc1 Bg6+ 32. e4 dxe4 33. Rxa3 Rxa3 {Black mates.} 34. Bxa3 exf3+ 35. Kb2 fxg2 36. d5 g1=Q 37. Bc5 Qxd1 38. dxe6 Qd2+ 39. Ka3 Qxc3 40. h4 b2+ 41. Ka4 Be8# {Black took control after the opening.  Weighted Error Value: White=0.58/Black=0.06} 0-1

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "1.2"]
[White "Kaydanovich, Marina"]
[Black "Szalko, Maciej"]
[Result "1/2-1/2"]
[ECO "D94"]
[WhiteElo "1734"]
[BlackElo "1946"]
[Annotator "TA"]
[PlyCount "135"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[WhiteTeam "Russia"]
[BlackTeam "Poland"]
[WhiteTeamCountry "RUS"]
[BlackTeamCountry "POL"]

{[%evp 11,135,-12,-7,-55,-35,-67,-58,-62,-67,-94,-80,-81,-66,-66,-65,-92,-51,-158,-37,-47,-22,-16,0,0,22,27,32,23,41,15,22,0,0,-37,-37,-65,-59,-119,-146,-254,-252,-272,-254,-566,-539,-513,-244,-261,-110,-5606,-199,-206,-201,-200,-4,-171,-166,-160,-143,-183,-153,-237,-192,-242,-174,-243,-250,-239,-248,-242,362,366,343,306,319,304,274,174,269,177,412,390,407,380,435,303,240,62,79,60,138,63,53,68,121,115,162,44,44,44,51,51,247,109,151,14,13,12,15,8,8,8,8,8,29983,0,8,0,8,0,8,0,0,0,0,0]} 1. c4 Nf6 2. Nc3 g6 3. d4 d5 4. e3 Bg7 5. Nf3 O-O 6. Bd3 c5 7. Qb3 {[%cal Rc4d5] D94: Grünfeld: 4 Nf3 Bg7 5 e3.} cxd4 8. exd4 {[%cal Rc4d5]} dxc4 9. Bxc4 {Black is slightly better.} Nc6 10. Be3 Na5 11. Qa4 Nxc4 12. Qxc4 Be6 {[#]} 13. Qb5 $146 ({Predecessor:} 13. Qb4 b6 14. Rc1 a5 15. Qa3 Bc4 16. Ne5 Ba6 17. Nc6 Qd7 18. Nxe7+ Kh8 19. Na4 {0-1 (27) Sitchikhin,S (1993)-Shurakov,D (2259) Kirov 2014}) 13... Qc7 14. d5 ({White should play} 14. Ne5 $15) 14... Bd7 (14... a6 $1 $17 {[%cal Ra6b5]} 15. Qb3 Nxd5 $1 {[%mdl 576] Decoy} 16. Nxd5 Qa5+ {[%mdl 64] Double Attack} 17. Qb4 Qxd5) 15. Qb3 $15 Rfd8 16. O-O Ng4 17. Bg5 Bf5 18. h3 Ne5 19. Nxe5 Bxe5 20. Rac1 Rac8 21. Nb5 Qd7 $1 22. Rxc8 (22. d6 $5 {[%cal Rd6e7]} Be6 23. Qb4 $11) 22... Rxc8 23. Nxa7 Rc5 $1 24. a4 (24. Re1 $15 Qxd5 25. Bxe7) 24... Rxd5 25. Be3 {[#]} (25. Nb5 $17) 25... Bxh3 $1 $19 {[%mdl 512]} 26. Rc1 (26. gxh3 Qxh3) 26... Be6 {Threatens to win with ...Rd2.} 27. Bh6 $2 {[#]} (27. Qc2 {was the crucial defense.}) 27... Bh2+ $1 {[%mdl 512]} 28. Kf1 (28. Kxh2 Rh5+) 28... Qd6 (28... Rh5 $142 29. Qe3 Bc7) 29. Nb5 Rc5 (29... Qd8 $19 30. Qe3 Rd1+ 31. Ke2 Rxc1 32. Qxc1 Be5) 30. Qd1 $2 {[%mdl 8192]} (30. Nxd6 $17 Rxc1+ 31. Bxc1 Bxb3 32. Nxb7) 30... Qxd1+ $2 (30... Bc4+ 31. Qe2 Bxe2+ 32. Kxe2 Qe6+ 33. Kf1 Rxc1+ 34. Bxc1 Qc4+ {[%mdl 64] Double Attack} 35. Ke1 Qxc1+ {[%mdl 64] Double Attack} 36. Ke2 Qxb2+ 37. Ke3 Qb3+ 38. Kd2 Bf4+ 39. Ke2 Qxa4 40. Kf3 Be5 41. Ke3 Qb3+ 42. Ke2 Qxb5+ 43. Kd2 Bf4+ 44. Kc3 Qc6+ 45. Kd3 b5 46. Ke2 Qe4+ 47. Kf1 Qd3+ 48. Ke1 Qd2+ 49. Kf1 Qd1#) 31. Rxd1 {[%cal Rd1d8]} Bc4+ 32. Ke1 {[%cal Rd1d8]} f6 $2 ({Black should try} 32... Re5+ $19 33. Be3 Bxb5 34. axb5 Bf4) 33. Nc3 $2 (33. Rd8+ $11 Kf7 34. Rf8+ Ke6 35. Be3) 33... Bd6 34. Be3 Rh5 35. Kd2 Kf7 36. Kc1 (36. Kc2 $17 {is a better defense.}) 36... Rh2 37. g3 h5 38. Rd4 (38. Ne4 $142 Bb3 39. Nxd6+ exd6 40. Rd4) 38... Bb3 39. Ne4 Rh1+ 40. Kd2 Bc5 $4 {[%mdl 8192]} (40... Rd1+ $19 {and life is good for Black.} 41. Ke2 Rxd4 42. Bxd4 Bc7) 41. Nxc5 $18 Rd1+ 42. Kc3 Rxd4 43. Bxd4 Bd5 44. a5 {And now f4 would win.} g5 (44... e5 $142) 45. b4 h4 $2 (45... e5 {might work better.}) 46. gxh4 gxh4 {Strongly threatening ...h3.} 47. f4 Kg6 48. Nd3 Kf5 49. Kd2 $2 (49. b5 $18) 49... Ke4 50. Bg1 Kf3 (50... Bc4 $14 51. Ne1 h3) 51. Ne1+ (51. f5 $1 $16) 51... Kxf4 $14 52. Ke2 e5 {[#]} (52... Kg3 $14) 53. Kf2 $1 $16 f5 {[#]} 54. Bh2+ (54. b5 $1 $18) 54... Ke4 $14 55. Nf3 f4 56. Nxh4 {Hoping for Bg1.} Bc6 $2 ({Better is} 56... Kd4 $14) 57. Nf3 (57. Ke1 $18 {has better winning chances.}) 57... Kf5 58. Nd2 (58. Ke2 $16) 58... e4 $1 $11 59. Nc4 {With the idea Ke1.} Bd5 60. Ne3+ (60. Nb6 {seems wilder.} e3+ 61. Ke1 Bf7 62. Nc8 Ke5 63. b5) 60... fxe3+ 61. Kxe3 {[%mdl 4096] Endgame KB-KB. Cut Off at move 61} Ke6 62. Kd4 Kf5 $2 {[%mdl 8192]} (62... e3 $11) 63. Ke3 $2 (63. Kxd5 {mates} e3 64. Be5 Kg4 65. b5 Kh5 66. Bc3 Kh6 67. a6 bxa6 68. bxa6) 63... Bc4 {The position is equal.} 64. Bd6 Bd3 65. Bc5 Ke6 66. Bb6 Kd5 67. Bc5 Kc4 68. Bf8 {A wild game.  Weighted Error Value: White=0.65/Black=0.67} 1/2-1/2

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "1.2"]
[White "Solomna, Svitlana"]
[Black "Stolarczyk, Anna"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "1434"]
[BlackElo "1909"]
[Annotator "TA"]
[PlyCount "146"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[WhiteTeam "Ukraine"]
[BlackTeam "Poland"]
[WhiteTeamCountry "UKR"]
[BlackTeamCountry "POL"]

{[%evp 9,146,43,64,25,23,0,0,-3,-4,-22,-19,-34,-24,-16,-9,-45,-42,-28,-43,-93,-94,-198,-200,-189,-33,-41,-33,-19,-34,-65,-60,-80,-81,-107,-68,-61,-28,-60,-64,-94,-92,-93,0,-41,0,-10,0,0,22,0,0,0,19,0,0,0,56,56,175,178,276,264,322,302,367,366,407,402,419,372,322,156,508,491,576,562,442,266,249,247,333,245,183,190,231,21,22,20,23,-8,-12,-27,-33,-27,-37,-44,-32,-420,-14,-52,-16,-395,-377,-357,-391,-383,-428,-2392,-2385,-1020,-1020,-1020,-588,-29977,-29978,-29982,-29982,-29983,-29984,-29984,-29985,-29985,-29986,-29986,-29987,-29987,-29987,-29987,-29988,-29988,-29989,-29992,-29993,-29993,-29992,-29992,-29993,-29994,-29994]} 1. d4 d5 2. Bf4 c6 3. e3 Qb6 4. Qc1 Nf6 5. Nf3 h6 6. c3 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Bf5 7. Nbd2 e6 8. Ne5 {The position is equal.} Nbd7 9. Ndf3 {[#]} c5 $146 ({Predecessor:} 9... Be7 10. Bd3 Bxd3 11. Nxd3 O-O 12. O-O Nh5 13. Re1 Ndf6 14. h3 Nxf4 15. Nxf4 a5 {0-1 (31) Preisler,R (1819)-Gaspar,Z (1697) Spitz am Donau 2017}) 10. Bd3 Bxd3 11. Nxd3 Ne4 12. O-O g5 13. Bg3 h5 14. h3 g4 15. hxg4 (15. Nfe5 $17) 15... hxg4 $19 16. Nfe5 {[#]} Nxg3 $2 (16... Bd6 $1 $19 17. Nxd7 Kxd7) 17. fxg3 $15 Nxe5 18. Nxe5 f5 19. Ng6 Rh7 20. Kf2 Bd6 21. Nf4 Bxf4 22. gxf4 O-O-O 23. Qc2 Rdh8 24. Rab1 Rh2 25. Rg1 g3+ ({Better is} 25... Qc6 $17 26. Ke1 c4) 26. Ke1 Rh1 27. Kd2 Rxg1 28. Rxg1 $11 {[%mdl 4096] Endgame KQR-KQR} Qa5 29. a3 cxd4 30. exd4 Qc7 31. Ke3 Rh4 32. Rf1 Qh7 (32... Kb8 $11) 33. Qa4 $14 {Qe8+ is the strong threat.} Qd7 (33... Qh5 $14) 34. Qxa7 $18 Qb5 (34... Kc7 $142 35. a4 Qd6 36. Qc5+ Kd7 37. Qxd6+ Kxd6) 35. Qc5+ Qxc5 36. dxc5 {KR-KR} Kc7 37. b4 Kc6 38. a4 Rh8 39. Kf3 Ra8 40. a5 ({Weaker is} 40. Kxg3 Rxa4 41. Re1 Kd7 $16) (40. Ra1 $18 {and White stays clearly on top.}) 40... Rg8 $2 (40... Kb5 $16 {is tougher.} 41. Rh1 (41. Kxg3 Kc4 $16) 41... d4 42. cxd4 Kxb4) 41. Re1 Rg6 42. Rh1 Rg7 {If Black can now play ...Kb5 this consolidates a bit.} 43. Rh3 Kb5 44. Rxg3 Re7 45. Kf2 Kc4 46. Ke2 d4 47. Kd2 $2 (47. cxd4 $18 Kxd4 48. Rg8) 47... dxc3+ $11 48. Rxc3+ Kxb4 49. a6 bxa6 50. c6 {Black must now prevent c7.} Rc7 51. Kd3 Kb5 52. Kd4 Rxc6 53. Ra3 $2 {[%mdl 8192] [#]} ({White should try} 53. Rb3+ $15 Ka4 54. Rb1) 53... Kb4 $2 (53... Rc4+ $1 $19 54. Ke5 Re4+ 55. Kf6 a5) 54. Ra1 Rc4+ (54... a5 $5 {[%cal Rc6c4]} 55. Rb1+ Ka4 $17) 55. Ke5 $2 {[%mdl 8192]} (55. Kd3 $1 $11 {and White has nothing to worry.}) 55... Re4+ $19 56. Kf6 a5 ({Inferior is} 56... Rxf4 57. Rxa6 Rf2 58. Kxe6 $11) 57. Kg5 a4 58. g3 (58. Rb1+ $142 Kc3 59. Rc1+ Kb2 60. Rc6) 58... a3 59. g4 fxg4 60. Kxg4 Kb3 61. Kf3 {Cut Off at move 61} Ra4 {Black mates.} 62. Ke3 Kb2 63. Re1 a2 64. Re2+ Kc3 65. Re1 a1=Q 66. Rxa1 Rxa1 {KR-KP} 67. Ke4 Re1+ 68. Kf3 Kd3 69. Kg4 Ke4 70. Kg3 Rf1 71. Kg4 Rxf4+ 72. Kg5 Kf3 73. Kg6 e5 {Both players deserved the win here.  Weighted Error Value: White=0.73/Black=0.49} 0-1

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "2.1"]
[White "Smirnov, Alexey"]
[Black "Nowak, Lukasz"]
[Result "1-0"]
[ECO "D39"]
[WhiteElo "2436"]
[BlackElo "2265"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[WhiteTeam "Russia"]
[BlackTeam "Poland"]
[WhiteTeamCountry "RUS"]
[BlackTeamCountry "POL"]

{[%evp 17,73,20,14,8,18,28,26,8,0,10,50,39,60,63,66,55,79,49,43,27,57,61,56,27,77,79,87,92,93,92,203,196,197,197,500,500,490,491,481,481,459,441,464,325,316,307,304,236,769,747,733,722,707,682,671,664,653,637]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 dxc4 6. e4 h6 7. Bxf6 Qxf6 8. Bxc4 O-O 9. O-O c5 10. a3 {D39: Queen's Gambit Declined: Ragozin Defence with 5 Bg5 dxc4.} cxd4 11. e5 {[#]} ({Don't play} 11. axb4 dxc3 12. Rb1 Rd8 $15) 11... Qe7 $146 ({Predecessor:} 11... Qd8 12. axb4 dxc3 13. bxc3 Qc7 14. Qe2 b6 15. Nd4 Nc6 16. Nxc6 Qxc6 17. Bb5 Qc7 {0-1 (51) Arsovic,G (2422)-Hera,I (2555) Skopje 2012}) 12. axb4 {White has an edge.} dxc3 13. bxc3 Rd8 (13... Qc7 $5 {[%cal Rc7c4]} 14. Bd3 b6 $11) 14. Qe2 Nd7 15. Qe4 $36 {[%mdl 2048] White fights for an advantage.} Nf8 16. Nd4 a6 17. Be2 Rb8 18. f4 Bd7 19. Rf3 Rdc8 20. Raf1 {aiming for f5.} Bc6 21. Nxc6 {White stays focused until the end.} Rxc6 22. f5 exf5 23. Rxf5 f6 (23... Ng6 $16 {keeps fighting.}) 24. Bc4+ $18 Kh8 25. Bd5 Rxc3 $2 (25... Rc7 {is tougher.} 26. exf6 Qxe4 27. Bxe4 Nh7) 26. exf6 Qxe4 27. fxg7+ {[%mdl 64] Discovered Attack} (27. Bxe4 Rc7 $16) 27... Kxg7 {[#]} 28. Rf7+ $1 ({Not} 28. Bxe4 Rc7 $16) 28... Kh8 29. Bxe4 Rcc8 30. Bxb7 Rd8 31. Bxa6 Nd7 32. Be2 Rxb4 $2 {[#]} (32... Ne5) 33. Rd1 {White is clearly winning.} Rb7 34. Bg4 Rg8 35. Rfxd7 Rxd7 36. Bxd7 Rd8 37. Bg4 {Weighted Error Value: White=0.15/Black=0.33} 1-0

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "2.1"]
[White "Yarmonov, Igor"]
[Black "Piekielny, Pawel"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2391"]
[BlackElo "2098"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[WhiteTeam "Russia"]
[BlackTeam "Poland"]
[WhiteTeamCountry "RUS"]
[BlackTeamCountry "POL"]

{[%evp 21,98,0,-1,-16,-5,-11,-14,-16,-13,-13,-4,-31,0,-32,-20,-32,-7,-27,-27,-22,0,-3,0,0,0,0,0,-56,-49,-80,-85,-86,-81,-83,12,-77,-77,-77,-77,-104,-79,-79,0,-97,-81,-78,-80,-76,-76,-76,0,-76,0,-77,0,-104,-104,-102,-30,-33,-22,-23,-23,-39,-38,-104,-64,-77,-64,-72,-29,-31,-29,-59,0,-31,0,-45,0]} 1. d4 Nf6 2. Bf4 e6 3. e3 c5 4. c3 Nc6 5. Nd2 d5 6. Bd3 Bd6 7. Bxd6 Qxd6 8. Ngf3 O-O 9. O-O e5 10. dxe5 Nxe5 11. Nxe5 Qxe5 12. Qf3 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Bg4 (12... Rd8 {looks sharper.} 13. Rfe1 b6 14. a4 Be6 15. h3 Rab8) 13. Qg3 Qxg3 14. hxg3 {The position is equal.} Rfd8 {[#]} 15. f3 $146 ({Predecessor:} 15. Rfe1 Rd6 16. a3 Rad8 17. Rab1 Rc6 18. Rbc1 g6 19. f3 Be6 20. g4 h6 21. Re2 {½-½ (49) Skreno,V (2200)-Nagy,T (2234) Slovakia 2017}) 15... Be6 16. a3 Rac8 17. Rfc1 h6 18. Kf2 Rc6 19. Ke2 c4 20. Bc2 Rb6 21. b4 cxb3 22. Nxb3 Rc8 23. Nd4 Nd7 24. Rcb1 (24. a4 $11) 24... Rxc3 $15 25. Rxb6 Nxb6 26. a4 Nc4 27. Bd3 Nd6 (27... Ne5 $17 28. Bb5 Rc5) 28. a5 (28. Nb5 $1 $11 Nxb5 29. axb5) 28... Bd7 $17 29. Kd2 Rc7 30. Rb1 Rc5 31. Nb3 Rc7 32. Nd4 Kf8 33. g4 Ke7 34. Rb4 Rc5 35. Nb3 Rc7 36. Nd4 Rc5 37. Nb3 $1 {[%cal Rb3c5]} Rc7 (37... Rc6 $17) 38. g3 (38. Nd4 $11 {remains equal.}) 38... Nc8 39. Nd4 b6 (39... Ke8 $17) 40. axb6 $11 Nxb6 41. Rb1 Na4 42. Rb8 Nc5 43. Rg8 (43. Bb5 $15) 43... Kf6 44. Ra8 Rb7 45. Bc2 g6 46. Rh8 Kg7 47. Ra8 Kf6 48. Rh8 $1 Kg7 49. Ra8 Kf6 {Weighted Error Value: White=0.18/Black=0.25} 1/2-1/2

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "2.1"]
[White "Babarykin, Stanislav"]
[Black "Tazbir, Marcin"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2387"]
[BlackElo "2513"]
[Annotator "TA"]
[PlyCount "28"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[WhiteTeam "Ukraine"]
[BlackTeam "Poland"]
[WhiteTeamCountry "UKR"]
[BlackTeamCountry "POL"]

{[%evp 20,28,12,16,18,20,28,24,21,24,39]} 1. d4 Nf6 2. Bf4 g6 3. e3 d6 4. h3 Bg7 5. Nf3 O-O 6. Be2 c5 7. c3 Qb6 8. Qb3 Be6 9. Qxb6 axb6 10. a3 Nc6 {[%cal Bb8c6,Bc6a5,Ba5b3][%mdl 32] 10...Bd5 is the hot move.} 11. Nbd2 Na5 {A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems.} 12. O-O Nb3 13. Rad1 Nxd2 14. Nxd2 {[#]} Rac8 $146 {White took control after the opening. Not enough moves} ({Predecessor:} 14... Bd5 15. Bf3 Bxf3 16. Nxf3 Rfd8 17. Nd2 Nd5 18. Bg3 e5 19. dxe5 dxe5 20. Nc4 f6 {1-0 (32) Cherevko,K (2116)-Malin,D (2040) Anapa 2009}) 1/2-1/2

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "2.1"]
[White "Molenda, Marcin"]
[Black "Kaydanovich, Marina"]
[Result "1-0"]
[ECO "E02"]
[WhiteElo "2349"]
[BlackElo "1734"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[WhiteTeam "Poland"]
[BlackTeam "Russia"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "RUS"]

{[%evp 20,107,74,71,79,79,80,76,76,49,48,42,38,50,40,40,58,60,64,65,79,81,85,59,70,2,52,-8,-2,-4,45,39,205,56,82,84,102,86,110,112,107,87,84,74,72,59,81,57,69,66,60,59,75,62,125,125,321,251,439,438,491,481,498,391,370,238,269,288,345,356,757,739,1165,1095,1005,954,29982,29983,5050,843,6516,6264,29954,6460,29967,29965,29966,29967,6103,5598]} 1. Nf3 Nf6 2. d4 d5 3. c4 e6 4. g3 dxc4 5. Qa4+ Nbd7 6. Bg2 c5 7. O-O cxd4 8. Nxd4 Be7 9. Rd1 Qb6 10. Qxc4 O-O 11. Nc3 Ne5 {E02: Open Catalan: 5 Qa4+.} 12. Qb5 Qxb5 13. Ndxb5 Nc6 {[#] White is better.} 14. Nd6 $146 ({Predecessor:} 14. Bf4 e5 15. Bg5 Bf5 16. Bxf6 Bxf6 17. Nd6 Bc8 18. Nce4 Be7 19. Nc5 Rb8 20. e3 {1-0 (31) Degtiarev,E (2195)-Doehn,R Dresden 2002}) 14... Rd8 15. Bf4 e5 16. Nxc8 Raxc8 17. Bd2 b6 18. Bh3 Rb8 19. Rac1 Nd4 20. Kf1 h6 21. Be1 b5 {[%cal Bb6b5,Bb5b4][%mdl 32]} 22. f3 (22. Nb1 $14) 22... a5 (22... b4 $5 {[%cal Rb4c3]} 23. Ne4 Nxe4 24. fxe4 b3 25. axb3 Rxb3 $11) 23. Bg2 (23. Bf2 $14) 23... b4 $11 24. Na4 Rbc8 25. e3 {Hoping for Rxc8.} Nf5 $2 {[#]} (25... Rxc1 $14 26. Rxc1 Ne6) 26. Ke2 (26. Rxc8 $1 $18 Rxc8 27. Bh3) 26... Rxc1 27. Rxc1 Bd6 28. Rc6 Ne7 29. Ra6 Bc7 30. Ra7 Ne8 31. f4 exf4 32. gxf4 Nc8 33. Ra8 (33. Ra6 {with more complications.} Ne7 34. Nc5 Nf6 35. Bh4 Ned5 36. Ne4) 33... Ncd6 34. Rxd8 Bxd8 35. Kd3 Kf8 36. e4 Ke7 {Black is on the road to losing.} (36... f6 $14) 37. Bf2 $16 Kd7 $2 {[#]} (37... f6 $16 {keeps fighting.} 38. e5 Nf7) 38. Nc5+ Kc8 $2 (38... Ke7 {was called for.} 39. e5 Nf5) 39. e5 $18 Nb5 40. Bc6 Nec7 41. Kc4 Na7 42. Bd7+ Kb8 43. f5 Be7 44. Bg3 Bxc5 $2 (44... Nc8 45. e6 fxe6) 45. Kxc5 {[%mdl 4096] Endgame KBB-KNN} Kb7 46. e6 fxe6 47. fxe6 Nc8 48. Bc6+ Kb8 49. Bd6 (49. Be4 $142 Ka7 50. Bxc7) 49... Nxd6 50. Kxd6 Kc8 51. e7 g5 52. e8=Q+ Nxe8+ 53. Bxe8 Kd8 54. Bh5 {Weighted Error Value: White=0.26/Black=0.94} 1-0

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "2.1"]
[White "Sovetov, Oleksandr"]
[Black "Szalko, Maciej"]
[Result "1-0"]
[ECO "D93"]
[WhiteElo "2022"]
[BlackElo "1946"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[WhiteTeam "Ukraine"]
[BlackTeam "Poland"]
[WhiteTeamCountry "UKR"]
[BlackTeamCountry "POL"]

{[%evp 13,99,21,65,57,73,59,63,65,117,119,112,112,106,112,112,119,113,106,154,164,201,204,202,163,165,162,199,183,169,162,298,249,334,242,245,237,259,183,183,180,263,226,289,227,233,193,203,206,241,244,285,275,373,369,333,300,352,355,396,391,381,377,452,439,481,475,472,453,1208,1361,1301,1327,1258,1257,1178,1144,1300,1058,962,1053,29983,29984,29985,29986,29993,29994,29994,990]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bf4 c6 6. e3 O-O 7. Qb3 b6 {7...Na6 is a critical line.} 8. Be2 {D93: Grünfeld: 4 Nf3 Bg7 5 Bf4 0-0 6 e3.} Ba6 9. Rc1 e6 10. h3 {[#] White is slightly better.} Ne4 $146 {[#]} (10... c5 $14) ({Predecessor:} 10... Nbd7 11. O-O Bb7 12. Rfd1 Qe7 13. a3 h6 14. Bh2 Rfd8 15. c5 b5 16. Nxb5 cxb5 {1-0 (53) Mamedyarov,S (2764)-Cerveny,M (2386) chess.com INT 2020}) 11. cxd5 $1 $16 exd5 12. Bxb8 {Bf4 is the strong threat.} Bxe2 13. Nxe2 {Black must now prevent Bf4.} Rxb8 14. Rxc6 Qd7 15. Rc1 Rfe8 16. O-O g5 17. Nc3 Rbd8 18. Nxe4 dxe4 19. Nh2 ({Much weaker is} 19. Nxg5 $6 h6 $11) 19... h5 20. Qd1 h4 21. Qh5 Qf5 (21... f6 $142 22. Rc4 Qf7 23. Qxf7+ Kxf7) 22. Rc7 a5 23. Rfc1 Rd6 24. Qg4 Qxg4 25. Nxg4 f5 26. Nh2 f4 (26... Rf6 {might work better.} 27. Nf1 Bf8) 27. Ng4 Red8 28. Rb7 R8d7 29. Rcc7 Rxc7 30. Rxc7 $18 {[%mdl 4096] Endgame KRB-KRN} Kh7 31. Kf1 Kg6 32. Ke2 Re6 33. a4 Rd6 34. b3 Bh8 35. Rc8 Bg7 36. Kd2 Kf7 37. Rc7+ Kg6 38. Kc3 Bf8 39. Kc4 Bg7 40. d5 Bb2 (40... fxe3 $142 41. Nxe3 Rf6) 41. Rc6 Ba3 42. Kb5 Kf7 43. Rxd6 Bxd6 44. Kxb6 {KB-KN} Bb4 45. Kc6 Ke7 46. Ne5 Be1 47. d6+ {White mates.} Ke6 48. d7 Bxf2 49. d8=Q {[%mdl 64] [#] Double Attack} Kxe5 50. Qxg5+ {White took control after the opening.  Weighted Error Value: White=0.12/Black=0.50} (50. Qd6+ $142 Kf5 51. Kd7 g4 52. Ke7 Kg5 53. Qf6+ Kh5 54. hxg4+ {[%mdl 64] Overworked Piece} Kxg4 55. Qg6#) 1-0

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "2.1"]
[White "Checiak, Krzysztof"]
[Black "Mukha, Nikolay"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "1967"]
[BlackElo "2163"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[WhiteTeam "Poland"]
[BlackTeam "Ukraine"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "UKR"]

{[%evp 18,67,51,23,100,42,38,28,37,20,10,7,41,0,-10,-47,-60,-110,-104,-104,-70,-173,-168,-161,-157,-191,-153,-258,-243,-350,-218,-245,-236,-326,-329,-327,-328,-360,-355,-924,-200,-1817,-1637,-29986,-29986,-29988,-29989,-29992,-29993,-29993,-29993,-29999]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be6 8. O-O Be7 9. f4 Qc7 10. Kh1 Bc4 {[#] B92: Sicilian Najdorf: 6 Be2.} (10... Nbd7 $11) 11. Bxc4 $146 (11. g4 $1 $16) ({Predecessor:} 11. g4 h6 12. g5 hxg5 13. fxg5 Bxe2 14. Qxe2 Nh5 15. Nd5 Qd7 16. Qg2 Bd8 17. Be3 Nc6 18. g6 {1-0 (42) Womacka,M (2446)-Guenthner,O (2238) Triesen 2014}) 11... Qxc4 $14 12. Qf3 Nbd7 {White has an edge.} 13. a4 O-O 14. Be3 exf4 15. Bxf4 ({White should try} 15. Qxf4 $14 Ne5 16. Nd4) 15... Ne5 $11 16. Bxe5 dxe5 17. Rfd1 Bb4 18. Nd2 Qc7 19. Ndb1 ({White should play} 19. Na2 $15 Bc5 20. c4) 19... Rad8 20. Rf1 Rd4 21. g4 Qc4 22. Re1 (22. g5 $17 Nxe4 23. Nxe4 Rxe4 24. c3) 22... h6 $19 23. h4 (23. Re2 {is a better defense.}) 23... Nh7 24. Rg1 Rfd8 25. g5 hxg5 26. hxg5 Nf8 27. Na3 Qe6 {Hoping for ...Bxc3.} 28. Nd5 $2 {[#]} (28. Rae1) 28... Bc5 $2 (28... Rxe4 $1 {[%mdl 512]} 29. Nxb4 (29. Qxe4 Qh3#) 29... Rh4+ 30. Kg2 Rd2+ 31. Kf1 Rf4 $1 {[%mdl 512]}) 29. c3 $2 {[#]} (29. Rg2) 29... Rxe4 $1 {[%mdl 576] Strongly threatening ...Rh4+. Discovered Attack} 30. Nf6+ (30. Qxe4 Qh3#) 30... gxf6 {Black mates.} 31. gxf6+ Ng6 32. Rxg6+ fxg6 33. f7+ Kg7 34. Qxe4 Qh3# {Weighted Error Value: White=0.93/Black=0.55} 0-1

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "2.1"]
[White "Stolarczyk, Anna"]
[Black "Palin, Denis"]
[Result "0-1"]
[ECO "D34"]
[WhiteElo "1909"]
[BlackElo "2110"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[WhiteTeam "Poland"]
[BlackTeam "Russia"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "RUS"]

{[%evp 24,94,23,-6,4,0,10,8,0,0,0,0,0,7,18,-33,-36,-52,-52,-64,-70,-116,-117,-105,-108,-109,-108,-107,-101,-102,-103,-153,-103,-157,-143,-210,-162,-167,-166,-185,-161,-222,-210,-311,-281,-291,-284,-854,-836,-961,-935,-845,-772,-772,-734,-797,-775,-908,763,-733,-726,-677,-570,-783,-403,-5243,-4998,-29990,-29988,-29988,-29989,-29989,-29982]} 1. Nf3 e6 2. g3 d5 3. Bg2 c5 4. c4 Nc6 5. d4 Nf6 6. O-O Be7 7. Nc3 O-O 8. cxd5 exd5 9. Bg5 cxd4 10. Nxd4 h6 11. Be3 Re8 12. Nxc6 bxc6 13. Na4 Bd7 {[#] D34: Tarrasch Defence: 6 g3 Nf6 7 Bg2 Be7.} 14. Nc5 $146 ({Predecessor:} 14. Rc1 Bf8 15. Bc5 Bxc5 {½-½ (15) Barth,N (2192)-Yu,M (2419) Budapest 2000}) 14... Bxc5 15. Bxc5 Ne4 {The position is equal.} 16. Bxe4 Rxe4 17. f3 Re8 18. Rc1 Qa5 19. a3 (19. a4 $11) 19... Qb5 $15 20. Rf2 Qxb2 21. e4 Qb7 22. Qd4 {[#]} dxe4 $1 23. fxe4 Bh3 24. Rb2 Qc7 25. Bd6 Qd7 26. e5 {[#]} Rab8 $1 {[%mdl 512]} 27. Rbc2 (27. Rxb8 Rxb8) 27... Rb6 28. Qa4 ({White should play} 28. Bc5 Qxd4+ 29. Bxd4) 28... Rc8 29. Qf4 (29. Bc5 $17) 29... Be6 30. Rd2 {intending Bc5.} Bd5 31. a4 Qb7 32. Bc5 (32. Qf5 {is a better defense.} g6 33. Qc2) 32... Rb1 $19 33. Rdc2 (33. Rf2 {was called for.}) 33... Rxc1+ 34. Qxc1 Qb3 {Hoping for ...Qf3.} 35. Bxa7 $2 (35. Rf2) 35... Qxa4 36. Bc5 Qe4 37. h3 Qh1+ {[%mdl 64] Double Attack} 38. Kf2 Qg2+ 39. Ke3 Qxg3+ 40. Kd4 Qf4+ $4 {[%mdl 8192]} (40... Ra8 $19 41. Rb2 Ra4+ 42. Bb4 Qh4+ 43. Kd3 Qe4+ 44. Kd2 Qf4+ 45. Kd1 Qxe5) 41. Kc3 $4 {[%mdl 8192]} (41. Qxf4 $18 Kh8 42. Rb2) 41... Qxe5+ 42. Bd4 Qg3+ 43. Kd2 Qxh3 {[#]} 44. Rc3 (44. Qg1 $142 $1 {[%mdl 512]} f6 45. Bxf6) 44... Qg2+ 45. Kd3 Qe4+ {Black mates.} 46. Kd2 Qxd4+ 47. Rd3 Qf4+ {Weighted Error Value: White=0.99/Black=0.26} 0-1

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "2.1"]
[White "Szewczyk, Malwina"]
[Black "Solomna, Svitlana"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "1418"]
[BlackElo "1434"]
[Annotator "NA RC"]
[PlyCount "81"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[WhiteTeam "Poland"]
[BlackTeam "Ukraine"]
[WhiteTeamCountry "POL"]
[BlackTeamCountry "UKR"]
[TimeControl "1500+10"]

1. d4 d5 2. e3 Nf6 3. Bd3 e6 4. Nf3 h6 5. Nbd2 Be7 6. b3 O-O 7. O-O c5 8. Bb2 Nc6 9. Ne5 Qc7 10. a3 a6 11. f4 cxd4 12. exd4 b5 13. c4 bxc4 14. bxc4 Rb8 15. Bc3 dxc4 16. Ndxc4 Nd5 17. Bd2 Nxd4 18. Rb1 Bd7 19. Ba5 Qa7 20. Nxd7 Qxd7 21. Ne5 Qd6 22. Qa4 Nf5 23. Bxf5 exf5 24. Nd7 Rxb1 25. Rxb1 Rc8 26. Ne5 Qxa3 27. Qxa3 Bxa3 28. Bd2 Bc5+ 29. Kf1 Bd4 30. Nf3 Bf6 31. Ke2 Nc3+ 32. Bxc3 Rxc3 33. Rb8+ Kh7 34. Ra8 Rc6 35. Ra7 Kg6 36. h3 Bc3 37. Kd3 f6 38. Nh4+ Kh5 39. Nxf5 Bb4 40. g4+ Kg6 41. Rxg7# 1-0

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "2.2"]
[White "Tazbir, Marcin"]
[Black "Babarykin, Stanislav"]
[Result "1-0"]
[ECO "A25"]
[WhiteElo "2513"]
[BlackElo "2387"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,67,28,32,32,21,9,18,13,13,0,0,0,-6,-20,0,0,0,0,6,6,25,35,52,55,52,48,46,39,36,11,13,6,7,3,4,4,2,2,45,46,41,37,45,51,49,26,33,25,273,254,503,399,392,389,582,582,541,541,704,700]} 1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 a6 5. e3 d6 6. Nge2 {A25: English Opening vs King's Indian with ...Nc6 but without early d3.} Ba7 7. Nd5 {7.b3 is the modern continuation.} Nf6 (7... Nce7 {is interesting.} 8. Nxe7 Qxe7 9. b3 Nf6 10. d4 O-O) 8. a3 {The position is equal.} O-O 9. O-O Nxd5 10. cxd5 Ne7 {[#]} 11. d3 $146 ({Predecessor:} 11. b4 h5 12. Bb2 h4 13. d4 hxg3 14. Nxg3 Ng6 15. dxe5 Nxe5 16. Bxe5 dxe5 17. Rc1 {0-1 (63) Zysk,R (2400)-Kuhn,H (2094) Tegernsee 2017}) 11... c6 12. dxc6 Nxc6 13. b4 Be6 14. Bb2 Qd7 15. d4 Bh3 16. dxe5 dxe5 17. Qxd7 Bxd7 18. Nc3 Rfd8 19. b5 axb5 20. Nxb5 Bc5 21. Rfc1 Bf8 22. Nc7 Ra5 23. Rd1 Bg4 24. Rxd8 Nxd8 25. h3 Be2 26. Re1 $36 {[%mdl 2048] Black is under pressure.} Bd3 27. Rd1 e4 28. Bf1 Bxf1 $2 {[#] This move loses the game for Black.} (28... Bxa3 $11 {and Black stays safe.} 29. Bc3 (29. Bxd3 Bxb2 30. Bb1 Nc6 $14) 29... Rc5 30. Bxd3 Rxc3 31. Bxe4 Rc1 32. Rxc1 Bxc1) 29. Rxd8 $18 Rc5 $2 (29... Be2 30. Bc3 Rc5) 30. Nd5 ({Weaker is} 30. Kxf1 Rxc7 31. a4 f5 $18) 30... Rxd5 31. Rxd5 Bd3 (31... Ba6 $142 32. Bc3 Be7) 32. a4 {White is clearly winning.} f6 33. Rd8 Ba6 34. Ba3 {Weighted Error Value: White=0.07/Black=0.36} 1-0

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "2.2"]
[White "Nowak, Lukasz"]
[Black "Smirnov, Alexey"]
[Result "0-1"]
[ECO "A29"]
[WhiteElo "2265"]
[BlackElo "2436"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,66,13,5,10,15,9,15,0,13,12,18,13,6,10,10,8,18,8,16,16,16,16,22,0,0,0,0,0,0,-150,-106,-567,-125,-160,-158,-160,-164,-220,-225,-439,-354,-439,-409,-432,-430,-427,-372,-5822,-5226]} 1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nc3 Nb6 6. Nf3 Nc6 7. O-O Be7 8. a3 O-O 9. b4 {[%cal Bb2b4,Bb4b5][%mdl 32]} Be6 10. Rb1 f6 11. b5 {is recently more successful than 11.d3. A29: English Opening: Four Knights Variation with 4 g3.} Nd4 12. e3 Nxf3+ 13. Bxf3 {The position is equal.} Rb8 14. d4 exd4 15. exd4 Re8 16. Re1 Bf7 17. a4 Nc4 {[#]} 18. h4 $146 ({Predecessor:} 18. Bf4 Bd6 19. Bxd6 Nxd6 20. Rxe8+ Qxe8 21. Rc1 c6 22. bxc6 bxc6 23. Qd2 Qd7 24. Qf4 {1-0 (42) Zhukova,N (2377)-Lysenko,M (2190) St Petersburg 2018}) 18... Qd7 19. Bf4 Bd6 20. Rxe8+ Rxe8 21. Bxb7 {Hoping for Bc6.} Bxf4 22. Bc6 $1 {[%cal Rc6d7]} Qh3 23. Bxe8 Bxe8 24. Qe1 ({White should play} 24. gxf4 $11 Qxc3 25. Rc1) 24... Bh5 25. Qe4 $2 {[%mdl 8192] [#]} (25. Qf1 $17 Qxf1+ 26. Rxf1) 25... Bd6 $2 $40 {[%mdl 128] Black has strong attack.} (25... Nd2 $1 $19 {has better winning chances. ( -> ...Nf3+)} 26. Qd5+ {[%mdl 64] Double Attack} Kf8 27. Qc5+ (27. Qxh5 $2 Bxg3 28. fxg3 Qxg3+ {[%mdl 64] Double Attack} 29. Kh1 Qh3+ 30. Kg1 Qxc3 $19) 27... Bd6 28. Qxh5 Bxg3 29. fxg3 Qxg3+ {[%mdl 64] Double Attack} 30. Kh1 Qh3+ 31. Kg1 Qxc3) 26. Qd5+ Bf7 27. Qa8+ Bf8 28. Re1 (28. Qh1 {was called for.} Qc8 29. Rc1) 28... Nd2 $19 29. Re2 $2 {[#]} (29. Rd1 Qe6 30. Qc6 (30. b6 $2 axb6 31. Qg2 Qc4 $19)) 29... Qf1+ $1 30. Kh2 Nb1 31. Rc2 Nxc3 32. Rxc3 Qxf2+ 33. Kh1 $2 (33. Qg2 Qxd4 {[%mdl 64] Double Attack} 34. Rxc7) 33... Qe1+ {Weighted Error Value: White=0.75/Black=0.60} 0-1

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "2.2"]
[White "Mukha, Nikolay"]
[Black "Checiak, Krzysztof"]
[Result "1-0"]
[ECO "D13"]
[WhiteElo "2163"]
[BlackElo "1967"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,105,28,73,23,15,15,39,39,36,29,33,19,29,0,0,2,6,6,79,67,74,72,69,62,72,77,63,77,114,109,169,182,403,114,114,114,114,117,127,104,118,115,138,138,143,107,107,107,107,99,107,107,106,105,226,227,190,85,86,8,8,8,27,8,20,28,108,112,73,88,375,354,682,697,582,573,677,680,606,600,768,701,5501,5295,5092,5080,1232,1088]} 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Bf4 a6 6. e3 Nc6 7. Bd3 e6 8. Nf3 Bd6 9. Bg3 O-O 10. Rc1 Re8 11. Bxd6 {D13: Slav Defence: Exchange variation without ...Bf5.} Qxd6 12. O-O e5 {[#]} 13. Nxe5 $146 {White is slightly better.} ({Predecessor:} 13. dxe5 Nxe5 14. Be2 Nc6 15. Nd4 Ne5 16. Nf3 Nc6 17. Nd4 Ne5 18. Nf3 Nc6 {½-½ (18) Kurajica,B (2511)-Jankovic,A (2547) Bol 2014}) 13... Nxe5 14. dxe5 Qxe5 15. h3 Be6 16. Be2 b5 17. Bf3 Rad8 18. Qd4 Qb8 (18... Qxd4 $11 19. exd4 Ne4) 19. Ne2 Rc8 20. b3 h6 21. Nf4 Red8 22. Rfd1 Rxc1 23. Rxc1 a5 24. Rc6 Rd6 (24... Rc8 $16 25. Nxd5 (25. Bxd5 Bxd5 26. Nxd5 Nxd5 $16) 25... Bxd5 26. Bxd5 Nxd5 27. Rxc8+ (27. Qxd5 Rd8 $16) 27... Qxc8 28. Qxd5 Qc1+ 29. Kh2 Qc7+ 30. g3 b4) 25. Qe5 $18 Ne8 $2 (25... Rd8 26. Qxb8 Rxb8 27. Nxe6 fxe6 28. Rxe6 b4) 26. Rxd6 $2 (26. Nxe6 $18 Rd8 27. Qxb8 Rxb8 28. Nf4) 26... Qxd6 $16 27. Qxd6 Nxd6 28. Bxd5 $18 {[%mdl 4096] Endgame KBN-KBN} Bf5 29. a3 Kf8 30. Ne2 Bd3 31. Nd4 a4 {intending ...b4.} 32. bxa4 bxa4 33. Bc6 Nc4 34. Bb5 Nb2 35. Bxd3 Nxd3 $16 {KN-KN} 36. Kf1 Ne5 (36... Ke7 $16 {might work better.}) 37. Ke2 $18 Ke7 38. Nc2 (38. f4 $18 Nc4 39. Nb5) 38... Kd6 39. Kd2 ({White should play} 39. Nb4 $1 $16) 39... Kc5 40. Kc3 Nc4 41. e4 g6 42. f4 g5 {[#]} (42... h5 $11) 43. fxg5 $1 $16 hxg5 44. g3 f6 $2 {[%mdl 8192] [#]} (44... Nd6 $16) 45. h4 $1 $18 gxh4 $2 (45... Nd6 46. Kd3 gxh4 47. gxh4 Nf7) 46. gxh4 {White is clearly winning.} Nd6 47. Kd3 Nc4 48. h5 Ne5+ 49. Kc3 Ng4 50. Nd4 Nf2 51. h6 Nxe4+ 52. Kc2 Ng5 {[#]} 53. Ne6+ $1 {[%mdl 512] Weighted Error Value: White=0.22/Black=0.57} 1-0

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "2.2"]
[White "Palin, Denis"]
[Black "Stolarczyk, Anna"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "2110"]
[BlackElo "1909"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,113,-1,27,11,37,24,34,29,40,0,24,6,25,18,18,-28,-17,-21,12,17,83,1,128,146,143,125,150,129,222,177,160,147,144,88,83,87,83,72,70,70,225,102,81,53,75,22,36,13,19,21,26,0,0,9,21,29,26,31,78,78,78,78,78,23,20,0,78,0,28,16,78,78,79,11,11,-33,-36,-86,-89,-190,-174,-191,-188,-188,-120,-644,-626,-617,-629,-596,-340,-355,-283,-249,0,-533,-508,-483,-474,-913,-890,-29984,-29984,-29998,-29999,-29999]} 1. d4 Nf6 2. Nf3 c5 3. e3 cxd4 4. exd4 d5 5. h3 g6 6. Bd3 {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.} Bg7 {6...Bf5 gains popularity.} 7. O-O O-O 8. c3 {White is slightly better.} Nc6 9. Qc2 Qc7 10. Nbd2 Re8 11. Re1 b6 {[#]} 12. b4 $146 ({Predecessor:} 12. Nf1 Bb7 13. Bg5 e5 14. dxe5 Nxe5 15. Nxe5 Rxe5 16. Bf4 Rxe1 17. Bxc7 Rxa1 18. Kh2 {0-1 (40) Skogvall,M (1960)-Kayser,S (2031) Oranienburg 2016}) 12... Nd7 13. b5 Nd8 14. Ba3 e6 (14... e5 $11) 15. Bb4 (15. c4 $16) 15... f6 (15... a5 $11 16. Ba3 Bb7) 16. c4 Bb7 17. Rac1 {Black must now prevent Bxg6!} dxc4 18. Bxc4 {Strongly threatening Qb3.} Qf4 (18... Rc8 $16) 19. g3 Qh6 20. h4 Bf8 21. Bxf8 ({White should try} 21. Qb3) 21... Qxf8 $16 22. Qb3 Qd6 23. Ne4 Bxe4 24. Rxe4 Kg7 $2 {[#]} ({Better is} 24... Nf8 $14) 25. Rce1 (25. Bxe6 $1 $18 {[%mdl 512]} Rb8 (25... Nxe6 26. Rc6) 26. Bd5 Rxe4 27. Bxe4) 25... Nf8 26. g4 Rc8 27. Bf1 (27. Qd3 $16) 27... Nf7 $11 28. g5 {next gxf6+ is good for White.} f5 29. R4e3 Rc7 30. Rc3 Rec8 31. Rec1 Rxc3 32. Rxc3 Rxc3 33. Qxc3 Nd7 34. Bc4 {aiming for Bxe6!} Kf8 35. Bb3 Ke7 36. Qc4 (36. Qe3 $16) 36... Nd8 37. Qc3 (37. Kg2 $11) 37... Nf7 $16 38. Qc4 Nd8 39. Qe2 Nf7 (39... Qf4 $11 {remains equal.}) 40. Qe3 Nd8 41. Ne5 (41. h5 $16) 41... Nxe5 $11 42. dxe5 Qb4 {[%mdl 64] Double Attack} 43. f4 Qxb5 44. Qd2 (44. Qd4 $17) 44... Qc5+ $1 $19 45. Kg2 {[#]} Nc6 $1 46. Qd3 Qd4 (46... b5 $19 47. Qf3 Qc1) 47. Qb5 $2 {[%mdl 8192]} (47. Qc4 $17 Qxc4 48. Bxc4) 47... Qd2+ 48. Kg3 Qe3+ 49. Kg2 Qe4+ 50. Kg3 Qe1+ 51. Kg2 {[#]} Qd2+ $2 (51... Nd4 $1 {[%cal Rd4b5]} 52. Qd3 Qe2+ 53. Qxe2 Nxe2) 52. Kg3 $1 Qc3+ 53. Kg2 Nd4 54. Qa6 (54. Qf1 $142 Qd2+ 55. Qf2) 54... Qf3+ {[%mdl 64] Double Attack} 55. Kg1 Ne2+ {[%mdl 64] Double Attack. Black mates.} 56. Kh2 Qg3+ {[%mdl 64] Double Attack} 57. Kh1 Qg1# {What a bad dream for White.  Weighted Error Value: White=0.51/Black=0.33} 0-1

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "2.2"]
[White "Piekielny, Pawel"]
[Black "Yarmonov, Igor"]
[Result "0-1"]
[ECO "B19"]
[WhiteElo "2098"]
[BlackElo "2391"]
[Annotator "TA"]
[PlyCount "138"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 31,138,19,30,18,30,18,37,32,57,29,35,34,35,26,35,-103,28,31,75,39,176,110,123,106,112,31,41,34,37,20,16,0,7,0,0,0,75,75,68,49,49,56,55,51,82,71,77,45,89,20,73,-27,-25,-31,-28,-36,-13,-13,-6,-21,0,0,0,0,0,0,0,0,0,0,0,-59,-59,-59,-59,-59,-59,-59,-59,-59,-59,-59,-59,-59,-59,-95,-95,-95,-95,-3710,-4516,-4516,-641,-2143,-2143,-29980,-29982,-29981,-29982,-29983,-29984,-29984,-29985,-29986,-29987,-29987,-29988,-29988,-29989]} 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bd2 Ngf6 12. O-O-O Qc7 13. Kb1 O-O-O 14. Qe2 Bd6 15. Ne4 Nxe4 16. Qxe4 Nf6 17. Qe2 {B19: Classical Caro-Kann: 4...Bf5 main line.} c5 18. Rh4 Kb8 19. dxc5 {White is slightly better.} Bxc5 20. Rc4 Qe7 21. Ne5 Rd5 22. Bf4 Ka8 {[#]} 23. Rxd5 $146 (23. Rd3 $14) ({Predecessor:} 23. Rd3 Re8 24. Rdc3 Bd6 25. a3 Bb8 26. g4 Nd7 27. Nd3 Nb6 28. Re4 Bxf4 29. Nxf4 {0-1 (44) Agner,C (2187)-Plumhoff,B (2022) IECG email 2001}) 23... Nxd5 (23... exd5 $17 24. Rc3 Re8) 24. Bg3 Bb6 25. Qf3 (25. Bh4 $5 {[%cal Rh4e7]} Qe8 26. Bd8 $1 $14 {[%mdl 576] Back Rank}) 25... Nf6 ({Better is} 25... Rf8 $14) 26. a3 (26. Qc3 $18 {White threatens Rc8+ and mate.} Qd8 27. a3) 26... a6 $16 27. Qc3 {Hoping for Rc8+.} Ka7 28. a4 (28. Rc8 $1 $16 {[%cal Rc8h8]} Rxc8 29. Qxc8) 28... Nd5 $1 $14 {[%cal Rd5c3]} 29. Qf3 Rf8 30. Bh4 Qe8 $1 31. Nd3 f6 32. Nb4 Nxb4 33. Rxb4 {Threatens to win with a5!} Qc6 (33... Qf7 $11) 34. Qxc6 $16 bxc6 {[%mdl 4096] Endgame KRB-KRB} 35. Rg4 Rf7 36. c3 Kb7 37. Kc2 Kc7 38. Bg3+ Kd7 39. Rc4 e5 40. b4 (40. f4 $16) 40... Bc7 (40... g6 $11) 41. b5 ({White should play} 41. f4 $16) 41... axb5 42. axb5 cxb5 43. Rc5 Rf8 (43... g6 $5) 44. Rxb5 Ra8 45. Kb2 Ra4 46. Rb4 Rxb4+ 47. cxb4 $11 {KB-KB} Kc6 48. Kc3 Kb5 49. Kd3 {Threatening Ke4.} f5 $1 ({Of course not} 49... Kxb4 $6 50. Ke4 $16) 50. Kc3 Bd6 51. f3 ({White should try} 51. Kd3 $1 $11) 51... Bxb4+ $15 52. Kd3 Bd6 53. Bf2 Kc6 $1 54. Be1 Kd5 55. Bc3 Be7 56. Bb2 Bf6 {Strongly threatening ...e4+.} 57. Ke3 e4 58. fxe4+ fxe4 59. Ba3 Bd4+ 60. Ke2 $2 {[%mdl 8192]} (60. Kf4 $17) 60... Ke5 $19 61. Bc1 {[#] Cut Off at move 61} Kf5 $1 {[%cal Rf5g4]} 62. Bd2 Kg4 63. Be3 {[#]} Bxe3 $1 {Black mates.} 64. Kxe3 Kxh5 65. Kxe4 {KPP-KP} Kg4 66. Ke5 h5 67. Ke6 h4 68. Kf7 Kg3 69. Kxg7 Kxg2 {Weighted Error Value: White=0.35/Black=0.19} 0-1

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "2.2"]
[White "Sovetov, Oleksandr"]
[Black "Szewczyk, Malwina"]
[Result "1-0"]
[ECO "D95"]
[WhiteElo "2022"]
[BlackElo "1418"]
[Annotator "TA"]
[PlyCount "155"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,155,-3,-3,25,7,39,44,22,22,17,7,59,50,89,90,92,29,145,68,72,53,217,214,332,141,134,135,410,416,417,199,437,412,449,451,424,410,381,352,375,362,364,361,358,343,400,391,381,399,769,746,763,761,741,406,406,406,437,254,357,291,584,374,343,354,360,356,339,288,427,293,289,289,289,289,289,211,619,602,714,708,700,710,1216,991,1112,282,282,282,282,282,282,282,281,282,275,267,282,282,267,267,289,274,274,274,274,111,274,267,266,141,121,8,1379,1058,758,747,747,740,5600,5106,29984,29985,29985,29986,29984,6077,5110,4618,2431,2431,29983,29984,29984,29985,29985,29984,29984,29985,29985,29986,29987,29988,29988,29987]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. e3 O-O 6. Qb3 e6 7. Be2 c5 {D95: Grünfeld: 4 Nf3 Bg7 5 e3 0-0 6 Qb3.} 8. cxd5 exd5 {[#]} 9. dxc5 $146 ({Predecessor:} 9. O-O c4 10. Qd1 a6 11. a4 Nc6 12. b3 Na5 13. bxc4 dxc4 14. Ne5 Be6 15. Ba3 {½-½ (46) Jones,I (2182)-Atakisi,U (2345) Skopje 2015}) 9... Qa5 {White is slightly better.} 10. Qb5 Qc7 11. O-O Be6 ({Black should play} 11... Na6 $11) 12. Bd2 Bd7 13. Qb3 Qxc5 14. Rac1 ({Better is} 14. Qxb7 $16 Nc6 15. Rac1) 14... Qd6 (14... Qb6 $1 $11) 15. Nb5 (15. Qxb7 $16 Nc6 16. Nb5) 15... Bxb5 $14 16. Bxb5 Qe6 $2 (16... Na6 $14) 17. Nd4 $18 Qg4 (17... Qe5 $142 18. Bb4 Rd8) 18. Be2 (18. Bb4 $18 {has better winning chances.}) 18... Qd7 $16 19. Bb4 $36 {[%mdl 2048] Black is under strong pressure.} Rd8 $2 {[%mdl 8192]} (19... Rc8 $16) 20. Bb5 $1 $18 {[%cal Rb5d7]} Qg4 21. h3 (21. Be7 $142 Na6 22. Bxd8 Rxd8 23. Bxa6 bxa6 24. Qb7) 21... Qg5 $2 (21... Qe4 {was worth a try.} 22. Rfd1 a5) 22. Be7 Nbd7 23. Bxd8 Rxd8 24. Nf3 Qf5 25. Bd3 Ne4 26. Bxe4 dxe4 27. Nd4 Bxd4 28. exd4 Nb6 29. Rc7 Rxd4 30. Rxb7 Nc4 $2 (30... Rd3) 31. Rb8+ Kg7 32. Qc3 Qe5 33. Re8 Qf6 34. Re1 Ne5 {[#]} 35. Rc8 ({Less strong is} 35. Qxd4 Nf3+ 36. gxf3 Qxd4 $14) (35. Qc5 $142 $1 {[%csl Ge8][%cal Rc5f8]} Nd7 36. Qxa7) 35... Rd3 (35... Qd6 {was called for.} 36. Re8 g5) 36. Qc5 {[%csl Gc8][%cal Rc5f8]} Qg5 $2 (36... Nd7 {was necessary.} 37. Qxa7 Rd2) 37. Kf1 Qf5 38. Re8 {And now Qf8+ would win.} Nd7 39. Qxf5 gxf5 {[%mdl 4096] Endgame KRR-KRN} 40. Ra8 Nc5 (40... Rd2 $142 41. Rd8 Kf6) 41. Rxa7 Rd2 {If only Black now had time for ...Nd3....} 42. b4 {[%cal Bb2b4,Bb4b5,Bb5b6][%mdl 32]} Nd3 43. Rb1 $1 Rxf2+ 44. Kg1 Rc2 $2 (44... Rd2 45. Rd7 e3) 45. b5 e3 46. Re7 e2 47. b6 {Black must now prevent b7.} e1=Q+ 48. Rexe1 Nxe1 49. Rxe1 $2 {KR-KR} (49. b7) 49... Rb2 50. a4 {a5 is the strong threat.} Rxb6 51. a5 Ra6 52. Ra1 $1 Kf6 53. Kf2 Ke5 54. Ke3 Kd5 55. Kf4 Ke6 56. h4 h6 57. g3 Kf6 58. Ra3 Kg6 59. Ra4 (59. h5+ $1 $18 Kf6 60. Ra2) 59... Kf6 $2 (59... f6 $16 60. Ra3 Kh5) 60. Ra1 Kg6 {[#]} 61. Ke5 {Cut Off at move 61} ({White must play} 61. h5+ $1 $18 Kf6 62. Ra2) 61... f6+ $16 {[#]} 62. Kd5 (62. Kf4 $1 $16) 62... Kf7 $2 {[%mdl 8192] White stays focused until the end.} (62... Kh5 $11) 63. Kc5 Ke6 64. Kb5 Ra8 65. a6 Kd7 66. a7 Kc8 67. Kc6 h5 68. Ra2 Kd8 69. Kd6 (69. Kb7 $142 Rxa7+ 70. Rxa7 Kd7 71. Ra6 Ke8 72. Kc6 Ke7 73. Kd5 Kd7 74. Ra7+ Kd8 75. Kc6) 69... Kc8 $18 70. Ke6 Kb7 71. Kxf5 Rf8 {[#]} 72. a8=Q+ $1 {[%mdl 512] White mates.} Rxa8 73. Rxa8 Kxa8 74. Kxf6 {KPP-KP} Kb7 75. Kg5 Kc6 76. Kxh5 Kd7 77. Kg6 Ke8 78. Kg7 {Weighted Error Value: White=0.54/Black=0.64} 1-0

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "2.2"]
[White "Szalko, Maciej"]
[Black "Sovietova, Kateryna"]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "1946"]
[BlackElo "1338"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,68,14,16,11,30,30,20,26,30,25,75,77,64,37,47,33,100,19,83,62,227,91,293,310,475,474,477,444,586,565,1126,1091,1465,1465,1417,1375,2013,1966,1892,1870,29990,1827,29989,29989,29993,1414,29991,29991,29995,29996,29996,29995,29995,29992,29995,29996,29996,29995,29998,29999,29999]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 c6 6. Qc2 {E06: Closed Catalan: Early deviations.} h6 7. O-O O-O 8. b3 {The position is equal.} Nbd7 9. Nc3 {[#]} dxc4 $146 ({Predecessor:} 9... b6 10. e4 dxe4 11. Nxe4 Bb7 12. Rd1 Qc8 13. Nc3 Bd6 14. Bb2 Qc7 15. a3 e5 {1-0 (22) Braun,A (2579)-Van Foreest,L (2350) Germany 2016}) 10. bxc4 Qc7 11. e4 e5 12. Bb2 Re8 (12... exd4 $14 13. Nxd4 Nc5) 13. Rac1 (13. dxe5 $1 $16 Ng4 14. e6 fxe6 15. h3) 13... Bd6 (13... exd4 $11 {keeps the balance.} 14. Nxd4 Nc5) 14. Rfd1 {White stays focused until the end.} Nf8 $2 ({Black should try} 14... exd4 $14 15. Nxd4 Bb4) 15. Ne2 (15. Nxe5 $6 Bxe5 16. dxe5 Rxe5 $16) (15. c5 $18 {and White stays clearly on top.} Be7 16. Nxe5 (16. dxe5 N6d7 $16)) 15... Bg4 $2 (15... exd4 $16 {was necessary.} 16. c5 (16. Nfxd4 Qe7 $14) (16. Rxd4 Bc5 $15) 16... d3 17. Rxd3 (17. Qxd3 Be7 $14) 17... Be7) 16. c5 $18 (16. Nxe5 $6 Bxe5 17. dxe5 N6d7 $16) 16... Bxf3 (16... Be7 $142 17. Nxe5 (17. dxe5 N6d7 $14) 17... Bxe2) 17. cxd6 ({Weaker is} 17. Bxf3 Be7 $16) 17... Bxe4 18. Bxe4 ({But not} 18. dxc7 Bxc2 19. Rxc2 exd4 $18) 18... Qxd6 19. dxe5 {[%mdl 64] Discovered Attack} Qe6 20. Bf5 Qe7 21. exf6 Qxe2 22. Rd2 Qb5 23. fxg7 Ng6 24. a4 Qa5 25. Bc3 (25. Bxg6 $142 Re5 26. Bxf7+ $1 {[%mdl 512]} Kxf7 27. Qb3+ {[%mdl 64] Double Attack} Qd5 28. Rxd5 cxd5 29. Qxb7+ {[%mdl 64] Double Attack} Ke6 30. Qxa8) 25... Qc5 26. Bxg6 fxg6 27. Qxg6 (27. Qb3+ $142 Qd5 28. Rxd5 cxd5 29. Qxd5+ Re6 30. Qxe6+ {[%mdl 64] Double Attack} Kh7 {[#]} 31. g8=R $1 {[%mdl 576] Decoy} Rxg8 32. Qf7+ {[%mdl 64] Double Attack} Rg7 33. Qxg7#) 27... h5 28. Qh6 {White mates.} Qa3 29. Qh8+ Kf7 30. Qxh5+ Kg8 31. Bb2 Qb4 32. Qh8+ Kf7 33. Rd7+ Ke6 34. Qh3+ Qg4 35. Qxg4# {Weighted Error Value: White=0.31/Black=1.21} 1-0

[Event "FIDE Olympiad Disabilties-KO 2020"]
[Site "Online"]
[Date "2020.11.21"]
[Round "2.2"]
[White "Kaydanovich, Marina"]
[Black "Molenda, Marcin"]
[Result "0-1"]
[ECO "A30"]
[WhiteElo "1734"]
[BlackElo "2349"]
[Annotator "TA"]
[PlyCount "122"]
[EventDate "2020.11.29"]
[EventType "team-tourn"]
[EventCountry "NET"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,122,0,3,-22,31,14,33,11,30,8,16,-58,-57,-58,-70,-56,-54,-59,-25,-39,-5,-4,-14,-21,0,-51,-46,-61,-63,-90,-95,-88,-69,-77,-75,-77,-70,-104,-91,-81,-84,-70,-79,-99,-72,-89,0,-95,-99,-102,-83,-211,-183,-208,-135,-141,-131,-249,-258,-250,-236,-289,-303,-300,-273,-298,-259,-256,-228,-245,-210,-252,-271,-258,-249,-246,-232,-303,-300,-294,-297,-285,-262,-393,-225,-481,-455,-854,-806,-989,-1016,-997,-990,-947,-927,-775,-741,-29981,-29982,-29982,-29983,-29983,-29984,-29985,-29982,-29984,-29985,-29985,-29986]} 1. c4 b6 2. Nc3 Bb7 3. e4 c5 4. Nf3 d6 5. g3 Nf6 6. d3 g6 7. Bg2 Bg7 8. O-O O-O 9. Qe2 {[#] A30: Symmetrical English: Double Fianchetto and Hedgehog.} Nbd7 $146 (9... Nfd7 $11) ({Predecessor:} 9... Nc6 10. h3 Nd7 11. Nh2 Nd4 12. Qd1 a6 13. Be3 b5 14. cxb5 Nxb5 15. Rc1 Qa5 16. Qd2 Rab8 {1-0 (40) Kortschnoj,V (2585)-Adams,M (2590) Roquebrune 1992}) 10. Rd1 e6 11. Bf4 {White is slightly better.} Qe7 12. Nb5 Ne8 13. e5 (13. Bg5 $11 Nef6 14. Bf4) 13... dxe5 $15 14. Nxe5 Bxg2 15. Kxg2 Nxe5 16. Bxe5 Qb7+ 17. f3 f6 18. Bc3 e5 19. Qe4 Rb8 20. Bd2 ({White should play} 20. Qxb7 $11 Rxb7 21. b4) 20... Qd7 21. Nc3 Nc7 22. Be3 f5 23. Qh4 Qc6 24. Bh6 Bf6 25. Bg5 Bh8 26. Re1 Rf7 27. Rad1 Re8 28. Bh6 Rd7 29. Kf2 Red8 30. Bg5 Re8 31. Bh6 $1 Bf6 $36 {[%mdl 2048] White is under strong pressure.} 32. Bg5 Rd4 33. f4 {[#] This costs White the game.} (33. Qh6 $17 {only move.}) 33... Bg7 $1 $19 34. Bh6 Bxh6 35. Qxh6 exf4 36. gxf4 (36. Rxe8+ $17 Qxe8 37. gxf4) 36... Qd6 37. Rxe8+ Nxe8 38. Nd5 {[#]} Nc7 $1 {[%cal Rc7d5]} 39. Re1 Nxd5 40. cxd5 {intending Re8+.} Qxf4+ 41. Qxf4 Rxf4+ {[%mdl 4096] Endgame KR-KR} 42. Kg3 Rg4+ 43. Kf3 Kf7 44. d6 Rd4 45. Re7+ Kf6 46. Rxa7 Rxd3+ 47. Ke2 Rxd6 48. Rxh7 Kg5 49. Re7 (49. Kf3 $142) 49... Kf4 (49... Kg4 $142 50. Re3 g5) 50. b3 $2 (50. Re3) 50... g5 51. h3 (51. Ke1 $142 g4 52. Re2) 51... Rh6 52. Re3 g4 53. hxg4 Rh2+ 54. Kd3 fxg4 {And now ...Rh3 would win.} 55. Re4+ Kf5 {Strongly threatening ...Rh3+.} 56. Re3 Rh3 {Black mates.} 57. Ke2 Rxe3+ 58. Kxe3 Ke5 59. a4 Kd5 60. Kf4 Kd4 61. Kxg4 Kc3 {Weighted Error Value: White=0.51/Black=0.12} 0-1

