[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "1.1"]
[White "Harikrishna, Pentala"]
[Black "Studer, Noel"]
[Result "1/2-1/2"]
[ECO "A29"]
[WhiteElo "2663"]
[BlackElo "2422"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,95,-4,23,0,1,-21,-6,-34,0,-7,0,0,0,-34,-39,-33,-40,-183,-108,-129,-49,-45,-53,-44,-44,-51,-54,-43,-44,-39,-33,-62,-43,-37,-55,-58,-52,-44,-16,-45,-45,-45,-45,-45,-29,-40,-37,-190,-37,-148,-45,-55,-50,-91,-34,-34,0,0,26,-12,0,-57,-27,-36,-36,-37,-10,-67,-68,-147,-147,-131,-118,-167,-181,-192,-191,-158,-83,-241,-222,-201]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Bc5 7. O-O O-O 8. d3 h6 {[#] 8...Re8 is a critical line. Played by Ian Nepomniachtchi in May 2020.} 9. Qb3 $146 {A29: English Opening: Four Knights Variation with 4 g3.} ({Predecessor:} 9. Bd2 Nf6 10. Rc1 Re8 11. Nh4 Nd4 12. e3 Nf5 13. Nxf5 Bxf5 14. Bxb7 Rb8 15. Be4 Bxe4 16. Nxe4 Nxe4 17. dxe4 Rxb2 {½-½ (25) Aronian,L (2772)-Giri,A (2776) Kolkata 2019}) 9... Nf6 10. a3 (10. Na4 $5 {[%cal Ra4c5]} Bb6 11. Qd1 $11) 10... Re8 11. Bd2 {The position is equal.} Bf8 12. Rfe1 Rb8 13. Rac1 Bg4 14. Be3 Nd4 15. Bxd4 exd4 16. Na4 (16. Ne4 $15) 16... b6 (16... Bxf3 $1 $19 17. Bxf3 Re5) 17. Rc6 b5 (17... Re6 $17 18. Rxe6 Bxe6) 18. Nc5 $15 Rb6 19. Rxb6 axb6 20. Ne4 $1 Nxe4 21. dxe4 Rxe4 22. Qxb5 {next Ne5 is good for White.} c5 23. Qd3 Re6 24. Nd2 Qe8 {[%cal Rg4e2]} 25. Bf3 h5 26. b3 g6 27. Bxg4 hxg4 28. a4 Bh6 29. Nc4 Qc6 30. Rd1 Kg7 31. Na3 $2 {[#]} (31. e3 $15) 31... Qd5 $2 ({Black should play} 31... Re3 $1 $19 {[%cal Re3d3][%mdl 512]} 32. Qc2 (32. fxe3 $2 Bxe3+ 33. Qxe3 dxe3 $19) 32... Qe6) 32. Nb5 {[#]} (32. Nc4 $15) 32... Qe5 ({Black should try} 32... Re5 $1 $17 33. Re1 f5) 33. Re1 Rf6 {Strongly threatening ...Rxf2!} 34. Na3 {[#]} Qd5 (34... Rxf2 $1 $17 {[%mdl 512] ( -> ...Be3)} 35. Nc4 (35. Kxf2 $2 {too greedy.} Be3+ 36. Qxe3 Qxe3+ 37. Kf1 Qxb3 $19 {[%mdl 64] Double Attack}) 35... Qf6) 35. Nc4 Re6 36. e4 Qd8 37. Kg2 Bg5 38. Qe2 (38. e5 $11) 38... f5 (38... d3 $5 {[%cal Rd3e2]} 39. Qxg4 f5 $15) 39. e5 $1 Qd5+ 40. Kg1 Bd8 41. Rd1 (41. Qd3 $11) 41... Bc7 {[%cal Rc7e5]} 42. Rb1 (42. Re1 $15) 42... Bxe5 $17 43. Re1 {[%cal Rc4e5]} Kf6 $36 {[%mdl 2048] Black is really pushing.} 44. Qd3 Bc7 45. Rxe6+ Qxe6 46. Kf1 Qe4 ({Better is} 46... Qc6 {Threatens to win with ...Qh1+.} 47. Kg1 Qe8) 47. Nb2 $2 (47. Qxe4 $17 fxe4 48. Ke1) 47... Qxd3+ $19 48. Nxd3 {Accuracy: White = 47%, Black = 57%.} 1/2-1/2

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "1.2"]
[White "Keymer, Vincent"]
[Black "Edouard, Romain"]
[Result "1-0"]
[ECO "A35"]
[WhiteElo "2476"]
[BlackElo "2614"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,70,-4,0,0,0,-16,29,-28,-13,-20,-13,-11,26,21,41,46,37,39,69,70,72,65,75,61,136,133,129,55,68,48,71,23,79,30,120,117,502,131,29974,6591,2325,23,63,49,112,112,113,106,228,218,218,211,247,189,228,200,257,207,323,318,619,0,385]} 1. Nf3 c5 2. c4 Nc6 3. Nc3 e5 4. h3 g6 5. g4 Bg7 6. d3 {[#] A35: Symmetrical English: 2 Nc3 Nc6 3 Nf3.} d6 $146 ({Predecessor:} 6... Nge7 7. Ne4 d6 8. Bg5 h6 9. Bf6 Kf8 10. Bg2 Bxf6 11. Nxf6 Kg7 12. Ne4 f5 13. gxf5 gxf5 {½-½ (52) Keymer,V (2558)-Istratescu,A (2550) Playchess.com INT 2020}) 7. Bg2 Nge7 8. Ne4 (8. g5 $142) 8... h6 9. g5 hxg5 10. Bxg5 f5 11. Nf6+ Kf7 12. Nd5 Rb8 13. h4 Qe8 14. Bxe7 Nxe7 15. Ng5+ Kg8 $1 16. e3 Nxd5 (16... Bd7 $14) 17. Bxd5+ $16 Kf8 18. Qf3 (18. Nf7 $16) 18... Qe7 $1 $14 19. a4 a6 20. Kd2 Rh5 (20... Qf6 $11 21. Ra2 Bd7) 21. Kc2 Bf6 (21... Bd7 $11 {keeps the balance.}) 22. Rag1 $16 Kg7 $2 {[%mdl 8192] [#]} (22... b5 $16 {is more resistant.}) 23. Ne4 $2 (23. Ne6+ $1 $18 {[%mdl 512] is more deadly.} Kh7 (23... Bxe6 24. Qxh5) 24. Qg2) 23... Rxh4 $2 {[%mdl 8192]} (23... Rh6 $16) 24. Rxh4 Bxh4 25. Ng3 $2 (25. Qh5 $18 Bg5 26. Rxg5 Qxg5 27. Qxg5 fxe4 28. Bxe4) 25... Bxg3 26. Qxg3 $40 {[%mdl 128] Black needs to defend precisely.} Qf6 (26... Qe8 $1 $14) 27. Rh1 {aiming for Qh2.} Be6 28. Qh2 {[#] Hoping for Qh7+.} Rg8 (28... Qe7 $16) 29. Qh7+ $18 ({Don't take} 29. Bxb7 $6 a5 $16) 29... Kf8 30. Qxb7 {Bxe6 is the strong threat.} Bxd5 31. cxd5 {KQR-KQR} ({But not} 31. Qxd5 $6 Qe7 $16) 31... Qe7 32. Qxa6 Kg7 33. a5 e4 (33... Rb8 $142 34. f3 Kg8) 34. Qc4 Rb8 $2 (34... exd3+ 35. Qxd3 Rf8 36. Qc3+ Rf6) 35. Ra1 $2 (35. Qc3+ $18 Qe5 36. Qxe5+ dxe5 37. dxe4) 35... Qf6 $2 {[%mdl 8192] Accuracy: White = 68%, Black = 34%.} (35... exd3+ $11 36. Qxd3 Qh4 37. Qc3+ Kf7) 1-0

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "1.3"]
[White "Wojtaszek, Radoslaw"]
[Black "Anton Guijarro, David"]
[Result "1/2-1/2"]
[ECO "A84"]
[WhiteElo "2690"]
[BlackElo "2590"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,72,21,32,32,48,35,55,35,47,34,34,34,34,22,20,20,35,34,32,27,34,13,43,39,126,122,123,137,113,100,168,170,162,168,148,152,164,158,152,179,273,268,343,324,352,329,287,71,81,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 f5 2. Nf3 Nf6 3. c4 g6 4. e3 Bg7 5. b4 {[%cal Bb2b4,Bb4b5][%mdl 32]} a5 6. b5 {A84: Dutch Defence: 2 c4 Miscellaneous.} e6 7. Bb2 b6 8. Nc3 {White is slightly better.} Bb7 9. Be2 O-O 10. a4 d6 11. O-O Nbd7 {[#]} 12. Ng5 $146 ({Predecessor:} 12. Qb3 Qe7 13. Rfd1 Kh8 14. Rac1 Ne4 15. Ne1 Qh4 16. g3 Qh6 17. Bf3 Ndf6 18. d5 {0-1 (34) Shoshin,K (1919)-Kholopov,A (2305) Moscow 2018}) 12... Qe7 13. Bf3 $36 {[%mdl 2048] White is more active.} Bxf3 14. Nxf3 Rad8 15. Qb3 Kh8 16. Rad1 e5 ({Black should play} 16... Rfe8 $14) 17. dxe5 $1 $16 dxe5 {[#]} 18. Ba3 $1 {[%cal Ra3e7]} Nc5 19. Qc2 e4 (19... Qe6 $16) 20. Nd4 $18 {Nc6 is the strong threat.} Qf7 21. Bxc5 $1 bxc5 22. Nc6 Rxd1 23. Rxd1 Qxc4 24. Nxa5 Qe6 (24... Qb4 $142) 25. Ne2 Ng4 26. Nf4 ({Weaker is} 26. Qxc5 Qa2 $18) 26... Qf7 27. h3 Ne5 28. Qxc5 $2 (28. Nb7 $18 {is more deadly.}) 28... g5 $16 {[#]} 29. Nd5 (29. Ne2 $1 $16) 29... Nd3 $11 {The position is equal.} 30. Qc6 f4 31. exf4 gxf4 {Threatens to win with ...Qh5.} 32. Nc3 ({Wrong is} 32. Nxc7 $2 f3 $19) 32... Nb4 33. Qc5 Nd3 34. Qc6 Nb4 35. Qc5 Nd3 36. Qc6 Nb4 {Black escapes into a draw. Accuracy: White = 86%, Black = 74%.} 1/2-1/2

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "1.4"]
[White "Adams, Michael"]
[Black "Naiditsch, Arkadji"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2709"]
[BlackElo "2581"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,101,33,34,29,33,27,29,37,37,37,27,48,50,30,21,21,30,23,43,15,34,49,42,47,87,36,68,56,144,143,180,134,147,145,194,191,384,383,389,393,378,385,379,391,384,391,398,396,420,418,441,408,472,472,504,462,455,422,483,412,467,460,441,425,504,522,572,589,581,581,739,741,724,705,704,700,696,681,639,641,630,627,608,605,29981,29982,29982,29983,29983,29982,29987,29988]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 Nf6 4. Nc3 Qc7 5. O-O Nd4 6. Re1 a6 7. Bf1 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6.} Ng4 {( -> ...Nxf3+)} 8. g3 {And now Nxd4 would win.} Nxf3+ 9. Qxf3 {Nd5 is the strong threat.White has an edge.} Ne5 10. Qe2 e6 11. Bg2 {11.d3 is setting a new trend.} d6 12. d3 Be7 13. Be3 O-O 14. f4 Nc6 15. Qf2 b5 {[#]} 16. e5 $146 {[%mdl 2048] White has good play.} ({Predecessor:} 16. g4 b4 17. Ne2 a5 18. g5 f6 19. Qg3 fxg5 20. fxg5 e5 21. c3 a4 22. c4 {1-0 (53) Pichot,A (2544)-Zhigalko,S (2671) Doha 2016}) 16... dxe5 17. Bxc5 Bb7 18. fxe5 (18. Bxe7 $16 Qxe7 19. fxe5) 18... Rac8 19. Bxe7 $1 Qxe7 {[#]} (19... Nxe7 $14 20. Bxb7 Qxb7) 20. d4 $1 $16 Qb4 21. Rab1 Rfd8 22. d5 exd5 23. Nxd5 ({Don't take} 23. Bxd5 $6 Qe7 $14) 23... Qd4 $2 (23... Qf8 {was worth a try.} 24. e6 fxe6) 24. Qxd4 $18 {[%mdl 64] [#] Overworked Piece} Nxd4 25. Ne7+ {[%mdl 64] Double Attack, Discovered Attack} Kf8 26. Nxc8 ({Weaker is} 26. Bxb7 Rc7 $16) 26... Bxg2 27. Kxg2 Rxc8 {[%mdl 4096] Endgame KRR-KRN} 28. c3 Ne6 29. Rbd1 b4 30. Re3 g5 31. Rd2 bxc3 32. Rxc3 Rb8 33. b3 Rb5 34. Re3 Kg7 35. Kf3 Kg6 36. Ke4 Rb4+ 37. Kd3 h5 38. Kc3 Rb8 39. Rf3 Rc8+ 40. Kb2 g4 41. Rf6+ Kg7 42. Rd7 Ng5 43. Rxa6 Re8 44. Ra5 Nf3 45. e6 Rxe6 46. Rxh5 Re2+ 47. Ka3 Rxh2 48. Rxh2 {White mates.} Nxh2 49. b4 {[%cal Bb3b4,Bb4b5][%mdl 32]} Nf1 50. Rd3 f5 51. b5 {Accuracy: White = 87%, Black = 58%.} 1-0

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "2.1"]
[White "Studer, Noel"]
[Black "Harikrishna, Pentala"]
[Result "0-1"]
[ECO "E05"]
[WhiteElo "2422"]
[BlackElo "2663"]
[Annotator "TA"]
[PlyCount "160"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,160,24,28,28,17,27,17,18,17,22,-52,8,9,15,11,14,0,1,0,13,13,21,13,8,8,22,25,30,22,18,23,68,63,63,62,91,44,44,46,48,41,53,60,77,60,87,77,83,83,84,85,125,116,236,235,254,269,267,269,279,256,361,332,385,381,392,390,333,94,124,129,261,260,259,247,223,176,164,169,216,162,170,147,147,46,38,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-27996,-27996]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 a6 8. a4 Bd7 9. Qxc4 Bc6 10. Bg5 Nbd7 11. Nc3 h6 12. Bxf6 Nxf6 13. b4 Bd5 {E05: Open Catalan: 5 Nf3 Be7.} 14. Nxd5 exd5 15. Qb3 c6 {The position is equal.} 16. Rfc1 Bd6 {[#]} 17. Ne1 $146 (17. e3 $11) ({Predecessor:} 17. e3 g6 18. b5 axb5 19. axb5 Rxa1 20. Rxa1 Qb6 21. Rb1 Ra8 22. Qb2 Ra5 23. bxc6 Qxb2 24. Rxb2 bxc6 {½-½ (33) Ostriker,J (2564)-Busemann,S (2595) ICCF email 2016}) 17... Qb6 ({Better is} 17... Qe7 $15) 18. Nc2 $11 h5 19. Rab1 h4 20. b5 axb5 21. axb5 hxg3 22. hxg3 c5 23. dxc5 Bxc5 24. e3 Rad8 25. Rd1 {[%cal Rg2d5]} Ne4 26. Bxe4 dxe4 27. Qc4 Rfe8 28. Rxd8 Rxd8 29. Qxe4 Qf6 30. Nb4 ({Much weaker is} 30. Qxb7 $6 Rd2 $11) (30. Nd4 {seems wilder.} Qe7 31. Qxe7 Bxe7 32. Rc1 Bf6 33. Rc7) 30... Qe7 31. Qxe7 Bxe7 $14 {[%mdl 4096] Endgame KRB-KRN} 32. Nc2 Bf6 33. Kf1 Bc3 34. Na3 Bf6 35. Ke2 Rc8 36. Rb4 Be7 37. Rc4 Rd8 38. Nc2 b6 (38... Kf8 $16 39. f4 Ke8) 39. Nd4 $18 Bc5 40. Nb3 Be7 41. Rc6 Rb8 42. e4 g6 (42... Bd8 $142 43. Nd2 Be7) 43. f4 Kf8 44. e5 Bd8 45. Nd2 Ra8 46. Kf3 $2 (46. Nc4 $18 {and White stays clearly on top.}) 46... Ra3+ $16 47. Kg4 Ra4 (47... Ra5 $16) 48. Nc4 $18 Rb4 49. Nd6 ({Resist} 49. Nxb6 $6 Rxb5 50. Nd7+ Kg7 $16) 49... Ke7 50. Rc8 {[#] And now Ra8 would win.} Kd7 51. Rb8 f5+ 52. exf6 Bxf6 53. Rxb6 Bd8 {[#]} 54. Ra6 ({White has to play} 54. Rc6 $1 $16) 54... g5 $1 $14 55. Nf5 {Rd6+ is the strong threat.} gxf4 56. gxf4 {Hoping for Rd6+.} Bc7 57. Ne3 {Threatening Nd5.} Rxf4+ 58. Kg5 Rb4 59. Nd5 $2 {[%mdl 8192]} (59. Kf6 $11) 59... Rxb5 60. Kf5 $2 {[%mdl 8192]} (60. Kg4 $11) 60... Rxd5+ $11 {KRB-KR} 61. Ke4 $2 {[%mdl 8192]} (61. Kg6 $11) 61... Rh5 62. Kd4 $2 {[%mdl 8192]} (62. Ra7 $11) 62... Bd6 63. Ke4 $2 {[%mdl 8192]} (63. Ra7+ $11 Kc6 64. Ra6+ Kc7 65. Ra8) 63... Ke6 64. Kd3 $2 {[%mdl 8192]} (64. Kf3 $11) 64... Rh4 65. Ra5 $2 {[%mdl 8192]} (65. Rb6 $11) 65... Be5 66. Ra8 $2 {[%mdl 8192]} (66. Ra6+ $11 Ke7 67. Ra2) 66... Kd5 67. Rd8+ $2 {[%mdl 8192]} (67. Ra5+ $11 Ke6 68. Ra2) 67... Bd6 68. Ke3 $2 {[%mdl 8192]} (68. Kc2 $11) 68... Rh3+ 69. Kf2 $2 {[%mdl 8192]} (69. Kd2 $11) 69... Ke5 70. Rd7 $2 {[%mdl 8192]} (70. Re8+ $11 Kf4 71. Ke2) 70... Rd3 {( -> ...Bc5+)} 71. Ke2 Ra3 72. Rh7 $2 {[%mdl 8192]} (72. Rd8 $11) 72... Ke4 73. Rh8 $2 {[%mdl 8192]} (73. Rh4+ $11 Bf4 74. Rh8) 73... Ra2+ 74. Kd1 Bf4 75. Rd8 $2 {[%mdl 8192]} (75. Re8+ $11 Be5 76. Ke1) 75... Kf3 76. Rd7 $2 {[%mdl 8192]} (76. Rd3+ $11 Be3 77. Rb3) 76... Bg5 77. Rd6 $2 {[%mdl 8192]} (77. Rd3+ $11 Be3 78. Rb3) 77... Be3 78. Rd8 $2 {[%mdl 8192]} (78. Rd3 $11) 78... Ke4 79. Ke1 Bb6 80. Kd1 $2 {[%mdl 8192]} (80. Rd7 $11) 80... Bxd8 {Never resign too early! Accuracy: White = 53%, Black = 79%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "2.2"]
[White "Edouard, Romain"]
[Black "Keymer, Vincent"]
[Result "1-0"]
[ECO "D43"]
[WhiteElo "2614"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,105,21,26,10,16,20,28,12,17,25,18,28,25,0,0,-8,0,0,0,-13,-12,-13,-13,-13,-13,-13,-11,-18,-18,-23,8,4,11,4,12,8,14,-9,-6,-12,0,0,8,8,30,30,38,32,40,40,41,32,47,32,46,22,46,0,46,22,47,32,32,32,32,32,50,63,82,91,89,106,93,116,78,86,99,120,926,830,683,413,1022,1002,2009,2255,29999,1831,29985,1554,1367,1254,926,700]} 1. c4 c6 2. d4 d5 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bxf6 Qxf6 7. e3 g6 8. Be2 {D43: Semi-Slav: 5 Bg5 h6.} Bg7 9. O-O O-O 10. e4 {[%cal Rc4d5] White has an edge. 10.Ne5 gains popularity. Played by Alireza Firouzja in May 2020.} dxe4 11. Nxe4 Qf4 12. Qc2 c5 {[#]} 13. Nxc5 $146 ({Predecessor:} 13. dxc5 Bd7 14. b4 Bxa1 15. Rxa1 Bc6 16. Nd6 Nd7 17. Qc1 Qf6 18. Rb1 g5 19. Qe3 {1-0 (48) Gelfand,B (2738)-Kasimdzhanov,R (2684) London 2012}) 13... Nc6 14. d5 Nd4 15. Nxd4 Qxd4 16. Nb3 Qxb2 17. Qxb2 Bxb2 18. Rab1 Ba3 19. Bf3 exd5 20. Bxd5 Bf5 21. Rbd1 Rac8 22. Nd4 Bd7 23. Nc2 Be7 24. Bxb7 Rc7 25. Ba6 (25. Bd5 {looks sharper.} Rb8 26. Rb1 Rb6 27. Nd4 Bc5 28. Nb3) 25... Ba4 26. Rd2 Bxc2 27. Rxc2 Rd8 28. Bb5 $36 {[%mdl 2048] White fights for an advantage.} Bc5 29. g3 Re7 30. Bc6 Rd6 31. Bd5 Kg7 32. Kg2 h5 33. f4 Re3 34. Rf3 Re1 35. Rf1 Re3 36. Rff2 Rd7 37. Rfe2 Rde7 38. Rxe3 Rxe3 $14 {[%mdl 4096] Endgame KRB-KRB} 39. Rb2 Bb6 40. a4 Kf6 41. Rb5 Re2+ 42. Kf1 Rf2+ 43. Ke1 {Black must now prevent Rxb6+!} Rxh2 44. c5 Bd8 {[#]} 45. Rb7 $1 {[%csl Gd5][%cal Rb7f7][%mdl 512]} Be7 $2 {[%mdl 8192] This move loses the game for Black.} (45... Kf5 $16) 46. c6 $18 Rc2 47. Rxa7 Rc5 (47... Bb4+ $142 48. Kf1 Kf5) 48. Rd7 Rc3 49. c7 Bb4 50. Kf1 (50. Rxf7# $142) 50... g5 51. Bb7 (51. Rxf7+ $142 Kg6 52. f5+ Kh6 53. Rf6+ Kg7 54. Rc6 Rxc6 55. Bxc6 Kf6 56. c8=Q) 51... Rc1+ 52. Ke2 Rc2+ 53. Kd1 {Accuracy: White = 83%, Black = 66%.} 1-0

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "2.3"]
[White "Anton Guijarro, David"]
[Black "Wojtaszek, Radoslaw"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2590"]
[BlackElo "2690"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,65,4,13,8,12,4,7,0,0,0,15,-31,-41,-32,-32,-20,0,-4,6,13,16,0,9,3,13,16,45,-28,-13,-62,-56,-45,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 d5 2. b3 Bg4 3. Bb2 Nd7 4. e3 e6 5. h3 Bh5 6. d3 {A06: Réti Opening: 1 Nf3 d5.} h6 7. Nbd2 Ngf6 8. e4 dxe4 9. dxe4 {[#]} Bb4 $146 {With the idea ...Nxe4.} ({Predecessor:} 9... Be7 10. Qe2 c6 11. O-O-O Bg6 12. g4 Qc7 13. Nd4 Bc5 14. f3 b5 15. h4 a5 {½-½ (32) Kaczmarek,R (2012)-Tsuprik,A (2028) ICCF email 2019}) 10. a3 (10. g4 {seems wilder.} Bg6 11. a3 Bc5 12. Bd3 O-O 13. Qe2) 10... Bxf3 11. gxf3 Bd6 $1 12. Qe2 {[#] And now e5 would win.} Be5 13. O-O-O Bxb2+ 14. Kxb2 Qe7 15. f4 O-O-O 16. Bg2 Nc5 17. Nc4 Kb8 18. e5 (18. Rhe1 $14) 18... Nd5 $11 19. Bxd5 (19. f5 {keeps more tension.} c6 20. Bxd5 exd5 21. Nd2 g6 22. f6) 19... exd5 20. Ne3 Ne6 (20... Qe6 {feels hotter.} 21. Qg4 d4 22. Qxe6 fxe6 23. Ng2 Rhf8) 21. Nxd5 {The position is equal.} Rxd5 {[%mdl 64] [#] Remove Defender} 22. Rxd5 {Black must now prevent Qd2.} Nxf4 {[%mdl 64] Double Attack} 23. Qe4 Nxd5 24. Qxd5 {[%mdl 4096] Endgame KQR-KQR} Rd8 25. Qe4 g5 26. f4 gxf4 27. Qxf4 a6 28. Rf1 Rd5 29. Qxf7 Qxe5+ 30. Kb1 Rd6 31. Qf8+ Ka7 32. Qf2+ Qd4 33. Qxd4+ {Accuracy: White = 83%, Black = 96%.} 1/2-1/2

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "2.4"]
[White "Naiditsch, Arkadji"]
[Black "Adams, Michael"]
[Result "0-1"]
[ECO "C68"]
[WhiteElo "2581"]
[BlackElo "2709"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,68,27,24,16,28,-10,-8,-6,-8,-55,-39,-52,-47,-128,-128,-114,-100,-81,-97,-103,-16,-197,-197,-194,-189,-367,-266,-273,-158,-342,-329,-314,-213,-350,-323,-516,-526,-527,-517,-550,-535,-579,-491,-497,-477,-554,-351,-606,-535,-526,-515,-679,-672,-676,-670,-670,-650,-668,-664,-624,-601]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bd6 6. Na3 {C68: Ruy Lopez: Exchange Variation, sidelines.} c5 7. c3 Ne7 8. Nc4 {[#] The position is equal.} Nc6 $146 ({Predecessor:} 8... Ng6 9. d4 Qe7 10. dxe5 Nxe5 11. Nfxe5 Bxe5 12. Qh5 Bd6 13. e5 Qe6 14. exd6 Qxc4 15. Re1+ Kf8 16. dxc7 Be6 17. Be3 b6 18. Rad1 Ke7 19. Qg5+ {1-0 (19) Rozentalis,E (2592)-Milligan,H (1979) Queenstown 2012}) 9. b4 cxb4 10. d4 {[%cal Rd4e5]} bxc3 11. dxe5 ({White should try} 11. d5 $15 Ne7 12. Nfxe5) 11... Bc5 $17 12. Qc2 Nd4 13. Nxd4 Qxd4 14. Ne3 {[#] Threatens to win with Rd1.} Be6 ({Much weaker is} 14... Qxe5 $6 15. Nd5 $11) (14... c6 $17 15. Rd1 Qxe5) 15. Nd5 $2 (15. Rd1 $11 {and White stays safe.} Qxe5 16. Nd5) 15... Bxd5 $19 16. exd5 Qxd5 ({And not} 16... Qxe5 {[#]} 17. Ba3 $1 $11 {[%mdl 512]}) 17. Qa4+ $2 (17. Qxc3 {keeps fighting.} Bd4 {[%mdl 64] Double Attack, Skewer} 18. Qd2) 17... Qd7 18. Qc4 Qc6 (18... Bd4 $19 {White must now prevent ...c2.} 19. Be3 c5) 19. Qg4 $2 {White does not recover from this.} (19. Be3 $17 {was the only chance.} Ba3 20. Qb3) 19... O-O 20. Bg5 Qg6 21. Qh4 (21. Rac1 $142) 21... h6 22. Be7 (22. Qc4 $142 Qb6 23. Bh4) 22... Bxe7 23. Qxe7 Qc6 24. Rac1 Rad8 25. Rfe1 Rfe8 26. Qb4 Rd3 27. h4 b5 28. h5 $2 (28. Re3 Rxe3 29. fxe3) 28... c2 {Black is clearly winning.} 29. Qg4 Rd2 30. f4 Red8 31. Kh2 Qc4 32. e6 fxe6 33. Rxe6 Rf8 34. Re7 {[%csl Ge7][%cal Rg4g7]} Qxf4+ {Accuracy: White = 30%, Black = 59%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "3.1"]
[White "Studer, Noel"]
[Black "Naiditsch, Arkadji"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "2422"]
[BlackElo "2581"]
[Annotator "ChessBase"]
[PlyCount "61"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "180+2"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 3. Nf3 {[%emt 0:00:00]} Bb4+ {[%emt 0:00:02]} 4. Nbd2 {[%emt 0:00:01]} c5 {[%emt 0:00:02]} 5. a3 {[%emt 0:00:07]} Bxd2+ {[%emt 0:00:02]} 6. Bxd2 {[%emt 0:00:15]} cxd4 {[%emt 0:00:02]} 7. Nxd4 {[%emt 0:00:01]} d5 {[%emt 0:00:01]} 8. cxd5 {[%emt 0:00:09]} Qxd5 {[%emt 0:00:02]} 9. e3 {[%emt 0:00:01]} O-O {[%emt 0:00:02]} 10. Nb5 {[%emt 0:00:21]} Na6 {[%emt 0:00:06]} 11. Bc3 {[%emt 0:00:04]} Qg5 {[%emt 0:00:03]} 12. h4 {[%emt 0:00:11]} Qg6 {[%emt 0:00:13]} 13. Qd3 {[%emt 0:00:20]} Ne4 {[%emt 0:00:15]} 14. h5 {[%emt 0:00:34]} Qf5 {[%emt 0:00:02]} 15. f3 {[%emt 0:00:00]} Nxc3 {[%emt 0:00:26]} 16. Qxf5 {[%emt 0:00:01]} exf5 {[%emt 0:00:01]} 17. Nxc3 {[%emt 0:00:01]} Be6 {[%emt 0:00:24]} 18. Rh4 {[%emt 0:00:13]} Nc5 {[%emt 0:00:02]} 19. b4 {[%emt 0:00:07]} Nb3 {[%emt 0:00:03]} 20. Rd1 {[%emt 0:00:02]} Rfc8 {[%emt 0:00:13]} 21. Nd5 {[%emt 0:00:10]} Rc2 {[%emt 0:00:11]} 22. Bc4 {[%emt 0:00:03]} Nc1 {[%emt 0:00:20]} 23. h6 {[%emt 0:00:19]} g5 {[%emt 0:00:23]} 24. Rhd4 {[%emt 0:00:03]} Kf8 {[%emt 0:00:06]} 25. R1d2 {[%emt 0:00:05]} Rxd2 {[%emt 0:00:14]} 26. Kxd2 {[%emt 0:00:01]} Rc8 {[%emt 0:00:02]} 27. b5 {[%emt 0:00:17]} a6 {[%emt 0:00:02]} 28. a4 {[%emt 0:00:01]} axb5 {[%emt 0:00:02]} 29. axb5 {[%emt 0:00:00]} f4 {[%emt 0:00:15]} 30. e4 {[%emt 0:00:01]} Bd7 {[%emt 0:00:12]} 31. Nb6 {[%emt 0:00:05]} 1-0

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "3.2"]
[White "Anton Guijarro, David"]
[Black "Adams, Michael"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "2590"]
[BlackElo "2709"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,102,4,19,8,10,23,15,15,16,15,25,22,22,16,37,15,15,19,6,9,14,-11,25,14,18,16,13,11,16,14,36,33,35,12,20,20,21,-12,-6,-48,0,-146,-146,-140,-141,-147,-147,-150,-144,-151,-154,-144,-134,-154,-128,-133,-123,-195,-185,-169,-174,-245,-191,-170,-116,-164,-164,-162,-148,-220,-214,-312,-279,-362,-362,-433,-426,-391,-362,-594,-544,-1183,-1157,-1191,-1161,-1117,-1026,-5485,-1360,-29990,-29991,-29994,-29995,-29995,-29996]} 1. Nf3 d5 2. b3 Bg4 3. Bb2 Nd7 4. e3 e6 5. h3 Bh5 6. d3 {A06: Réti Opening: 1 Nf3 d5.} Ngf6 7. g4 Bg6 8. Nh4 {The position is equal.} c6 9. Nd2 Qc7 10. Bg2 O-O-O 11. Qe2 {[#]} Bd6 $146 ({Predecessor:} 11... e5 12. a3 Nc5 13. O-O Ne6 14. Rfd1 Be7 15. b4 Ne8 16. Nf5 Bxf5 17. gxf5 Nf8 {0-1 (30) Hobuss,U (2402)-Bjarnason,O (2163) Basel 2001}) 12. f4 h6 13. Nxg6 fxg6 14. O-O-O e5 15. f5 g5 16. Kb1 Kb8 17. h4 gxh4 18. Rxh4 Rhe8 19. e4 d4 20. Nf3 Nh7 21. g5 Nxg5 22. Nxg5 hxg5 23. Rh5 Be7 24. Bc1 a5 {[%cal Ba7a5,Ba5a4][%mdl 32]} (24... g4 {keeps more tension.} 25. Rdh1 Rg8 26. Qe1 Rdf8 27. Qg3 g6) 25. Rxg5 (25. Bf3 $11 {keeps the balance.}) 25... Bxg5 $17 26. Bxg5 Rc8 27. Bf3 Rh8 28. Rg1 a4 29. Bc1 Rh7 30. Qe1 Qb6 31. Qg3 Rch8 32. Bg2 Qc5 33. Bb2 (33. Qe1 $17) 33... Ka7 34. Bc1 Nf6 35. Qe1 (35. Bd2 $142) 35... Rh4 36. Bf3 R8h7 (36... Rh2 $19 37. Bd1 axb3 38. axb3 R8h7) 37. Bd1 Rh2 38. Bd2 Qb6 39. Ba5 (39. Kb2 $17) 39... Qb5 $19 40. Bd2 (40. Kc1 $142) 40... Nd7 41. Bb4 Nc5 42. Ba3 axb3 43. axb3 Na6 44. Qg3 $2 {[#]} (44. Bf3 c5 45. Rg5) 44... Nb4 45. Bxb4 Qxb4 46. Qxe5 Rh1 47. Qg3 Qd2 48. Kb2 R7h2 (48... Rxg1 $142 49. Qxg1 c5) 49. Qd6 Qc3+ {Black mates.} 50. Kb1 Rxg1 51. Qa3+ {[#]} Kb6 $1 {Accuracy: White = 59%, Black = 81%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "3.3"]
[White "Edouard, Romain"]
[Black "Wojtaszek, Radoslaw"]
[Result "0-1"]
[ECO "A29"]
[WhiteElo "2614"]
[BlackElo "2690"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,64,2,2,-32,-24,-56,25,25,23,25,27,18,29,0,0,0,8,8,7,0,13,0,0,0,0,-26,-20,-37,0,-6,0,-85,-35,-46,0,-170,-164,-157,-62,-224,-220,-216,-209,-201,-187,-664,-656,-1304,-1268,-29993,-29994,-29994,-29995]} 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Bb4 5. Nd5 Bc5 6. Bg2 d6 7. O-O O-O 8. d4 {A29: English Opening: Four Knights Variation with 4 g3.} Nxd4 9. Bg5 {[#]} Ne6 $146 (9... Nxf3+ $15 10. Bxf3 c6 11. Nxf6+ gxf6) ({Predecessor:} 9... c6 10. Nxd4 cxd5 11. Nb3 dxc4 12. Nxc5 dxc5 13. Qc2 Be6 14. Bxb7 Rb8 15. Bg2 h6 {½-½ (34) Dubov,D (2661)-Khairullin,I (2653) Kaliningrad 2015}) 10. Bxf6 $11 {White has an edge.} gxf6 11. b4 Bb6 12. Nh4 Ng7 13. Qc2 Bd4 $36 {[%mdl 2048] Black has the initiative.} 14. Rad1 c6 15. e3 cxd5 16. exd4 dxc4 $1 17. Qxc4 Qe7 18. Rfe1 Bg4 19. f3 Be6 20. Qd3 Rac8 21. f4 Qc7 22. f5 (22. Qe3 $11) 22... Bc4 23. Qe3 Rfe8 24. Qh6 $2 (24. dxe5 $11 {and White is okay.} dxe5 25. Qxa7) 24... exd4 $19 (24... Bxa2 25. Re4 $14) 25. Qxf6 d3 (25... Bxa2 26. Rxe8+ Rxe8 27. Qxd4 $11) (25... Qb6 $17 26. Rxe8+ Rxe8) 26. Qh6 $2 {This move loses the game for White.} ({White should play} 26. Qd4 $15) 26... Qb6+ ({But not} 26... Bxa2 $2 27. f6 $18) 27. Kh1 {[#] White wants to mate with f6.} Rxe1+ $1 ({And not} 27... Qxb4 28. Rf1 $11) ({Avoid the trap} 27... Bxa2 $2 28. f6 $18) 28. Rxe1 {[#] f6 would kill now.} Qf2 $1 29. Rf1 $2 {[#]} (29. Nf3 Nxf5 30. Qg5+ Ng7 31. a4) 29... d2 $1 {[%mdl 512]} 30. f6 {[%csl Gf6][%cal Rh6g7] [#]} Ne6 $1 {[%mdl 512]} 31. Qh5 Bxf1 32. Qg4+ Kf8 {Accuracy: White = 37%, Black = 69%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "3.4"]
[White "Harikrishna, Pentala"]
[Black "Keymer, Vincent"]
[Result "1/2-1/2"]
[ECO "D10"]
[WhiteElo "2663"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,50,15,18,25,24,18,18,16,24,10,18,0,0,0,11,0,0,-2,0,0,0,0,0,0,27,20,14,-50,0,0,0,0,0,0,0]} 1. c4 c6 2. d4 d5 3. Nc3 Nf6 4. cxd5 cxd5 5. Bf4 Nc6 6. e3 a6 7. Bd3 Bg4 8. Nge2 e6 9. O-O Bd6 10. f3 {D10: Slav Defence: 3 cxd5 (without early Nf3) and 3 Nc3.} Bh5 11. Bxd6 Qxd6 12. Nf4 Bg6 13. Qd2 O-O {[#]} 14. Nxg6 $146 ({Predecessor:} 14. Rfc1 Rfe8 15. Bxg6 hxg6 16. Nd3 e5 17. dxe5 Nxe5 18. Nxe5 Rxe5 19. Re1 Rae8 20. Qd4 {0-1 (60) Yilmaz,M (2521)-Kobalia,M (2673) Moscow 2012}) 14... hxg6 15. f4 Rfc8 16. Rfc1 b5 17. Ne2 Nb4 18. Rxc8+ Rxc8 19. Rc1 Rxc1+ 20. Nxc1 Ne4 21. Bxe4 dxe4 22. Kf2 ({White should try} 22. a3 $11 Nd5 23. Nb3) 22... Qc6 23. Qxb4 {The position is equal.} Qxc1 24. Qc3 Qd1 25. h3 Kh7 {A rather calm draw. Accuracy: White = 88%, Black = 79%.} 1/2-1/2

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "4.1"]
[White "Naiditsch, Arkadji"]
[Black "Studer, Noel"]
[Result "1-0"]
[ECO "A22"]
[WhiteElo "2581"]
[BlackElo "2422"]
[Annotator "TA"]
[PlyCount "113"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,113,0,0,0,8,12,14,15,13,12,10,0,9,4,14,5,24,6,14,-16,-15,-18,-29,-28,-33,-27,10,-46,164,173,247,246,247,235,247,233,413,407,407,407,407,409,385,131,106,98,115,129,252,247,314,177,251,240,240,200,188,111,85,37,624,638,827,823,808,801,800,729,726,701,897,847,801,0,0,0,781,763,847,772,1050,1108,29978,29979,29980,29981,29987,29988,29990,29991,29993,29985,29983,2560,29975,29976,29975,29976,29939,9403,29987,29988,29987,29988,29990,29991]} 1. a3 e5 2. c4 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 {[#] A22: English Opening: 1...e5 2 Nc3 Nf6.} c5 $146 ({Predecessor:} 6... Bc5 7. Nf3 Nc6 8. Bc4 O-O 9. O-O Qf6 10. Rb1 h6 11. Bd5 Rd8 12. Qe2 Ne7 13. Nxe5 Qxe5 {½-½ (21) Krecak,Z (2314)-Marek,S (2442) ICCF email 2012}) 7. Nf3 Bd6 8. Bc4 {The position is equal.} O-O 9. O-O Nc6 10. Rb1 Rb8 11. h3 Na5 12. Bd5 c4 13. a4 Qe7 14. Qe2 Be6 15. d4 cxd3 16. Qxd3 Bxd5 17. Qxd5 b6 18. Be3 ({White should try} 18. Rd1 $11 Bc7 19. Bg5) 18... Rfd8 $2 (18... Qc7 $15) 19. Bg5 $36 {[%mdl 2112] Skewer. White is really pushing.} Qe6 (19... Qb7 $142) 20. Qxe6 fxe6 21. Bxd8 Rxd8 22. Rfd1 Nc6 $2 (22... Nb7 23. a5 Nxa5 24. Nxe5 Kf8) 23. Ng5 Be7 24. Nxe6 Rc8 {Black hopes to continue with ...Kf7.} 25. Rd7 Kf7 26. Nc7 $2 (26. Rc7 $18 {and the rest is easy.} Rxc7 27. Nxc7) 26... Nb8 $16 27. Rbd1 Nxd7 28. Rxd7 {[%mdl 4096] Endgame And now Nd5 would win. KRB-KRN} Kf8 (28... Rd8 $16 29. Rxd8 Bxd8) 29. Nd5 Bc5 30. g4 (30. Rxa7 $142 Kg8 31. Kf1) 30... a5 (30... Kg8 $142 31. Kg2 (31. Rxa7 Rf8 $16) 31... Rf8) 31. Kg2 $18 Rc6 32. h4 Ba3 33. Nc7 ({White should play} 33. Rd8+ $18 Kf7 34. Rd7+ Kf8 35. Rb7) 33... Bb2 $16 34. f4 Bxc3 $2 {[%mdl 8192]} (34... exf4 $14 35. Kf3 Rxc3+ 36. Kxf4 Rc4) 35. f5 $18 Bb4 36. Ne6+ {[%mdl 64] Double Attack} Ke8 37. Rxg7 Rc2+ 38. Kf3 Rc3+ 39. Ke2 Rc4 40. f6 {White threatens f7+ and mate.} Rc2+ 41. Kd3 Rc3+ 42. Ke2 Rc2+ {[#] White stays focused until the end.} 43. Kd1 $1 {White wants to mate with f7+.} Rd2+ 44. Kc1 {Intending f7+ and mate.} Rf2 45. g5 Ba3+ 46. Kd1 Bb4 47. Rxh7 b5 48. axb5 {[%cal Ba4b5,Bb5b6][%mdl 32]} a4 49. b6 a3 50. Ra7 a2 51. h5 (51. b7 $142 a1=Q+ 52. Rxa1 Bd6 53. Ra7 Rf1+ 54. Ke2 Bb8 55. Kxf1 Bxa7 56. g6) 51... a1=Q+ 52. Rxa1 Rf1+ 53. Kc2 Rxa1 54. g6 Rh1 55. f7+ {White mates.} Kd7 56. g7 Kxe6 57. g8=Q {Accuracy: White = 72%, Black = 51%.} 1-0

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "4.2"]
[White "Adams, Michael"]
[Black "Anton Guijarro, David"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2709"]
[BlackElo "2590"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,114,10,10,12,8,14,16,16,15,16,8,18,14,17,18,12,-10,-8,-11,4,6,29,21,29,9,39,43,35,16,33,30,67,41,52,47,64,68,114,112,112,116,111,117,108,115,110,118,222,220,223,216,229,234,297,296,292,281,589,591,581,578,529,444,529,523,621,628,628,625,614,600,585,582,548,493,497,487,777,772,1077,957,1011,990,916,852,12833,12831,12835,12835,12837,12835,12836,12836,12837,12837,12840,12839,12841,12842,12850,29976,12851,29980,12851]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. O-O d6 6. c3 O-O 7. Re1 a5 {is the new trend. C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 8. Nbd2 Be6 9. Bb5 Qb8 {The position is equal.} 10. Nf1 Qa7 11. Be3 Bxe3 12. Nxe3 Qb6 13. a4 Ng4 {[#]} 14. Qd2 $146 ({Predecessor:} 14. Ng5 Nxe3 15. Rxe3 Nd8 16. d4 c6 17. Bf1 h6 18. Nf3 Bg4 19. Bc4 Ne6 20. dxe5 dxe5 {½-½ (36) McShane,L (2667)-Anton Guijarro,D (2649) Germany 2019}) 14... Nxe3 15. Rxe3 Ne7 16. d4 Ng6 17. Ng5 c6 18. Bf1 Rad8 19. Nxe6 fxe6 20. Rd1 exd4 21. cxd4 d5 22. Qc2 Rf7 23. g3 Rdf8 24. Rd2 Ne7 {Black is on the road to losing.} 25. Bh3 Rf6 26. exd5 cxd5 27. Qc5 Qxc5 28. dxc5 Kf7 29. Rde2 Nf5 (29... Rd8 $16 30. Bxe6+ Kf8) 30. Bxf5 $1 $18 Rxf5 31. Rxe6 {[%mdl 4096] Endgame KRR-KRR} Rc8 32. Re7+ Kg6 33. Rxb7 Rxc5 34. Ree7 d4 $2 {[#]} (34... Kf6 {is more resistant.} 35. Rxg7 Rc1+ 36. Kg2 Rc2) 35. Rxg7+ Kf6 36. Rgf7+ Kg6 37. Rfd7 Rc1+ 38. Kg2 Rc2 39. Rg7+ Kf6 40. Rgf7+ Kg6 41. Rxf5 Kxf5 {KR-KR} 42. Kf3 d3 43. Rb5+ Ke6 44. h4 d2 (44... Re2 $142 45. Rb3 (45. Rxa5 Re1 $11) 45... Rc2 46. Rxd3 Rxb2) 45. Ke2 d1=Q+ 46. Kxd1 Rxf2 47. b3 Rg2 48. Rxa5 Rxg3 49. Rb5 Rg2 50. h5 Kd6 51. a5 Kc6 52. Rb6+ Kc5 53. h6 Kd4 54. Rc6 Rb2 55. Rc7 Rxb3 56. Rxh7 Rh3 57. a6 Kd5 {Accuracy: White = 97%, Black = 61%.} 1-0

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "4.3"]
[White "Wojtaszek, Radoslaw"]
[Black "Edouard, Romain"]
[Result "1-0"]
[ECO "A79"]
[WhiteElo "2690"]
[BlackElo "2614"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,63,34,31,39,37,52,31,43,45,66,66,49,59,67,60,53,37,32,22,30,0,0,0,35,-63,-36,-35,62,36,27,37,60,58,266,261,267,250,245,143,521,512,508,501,1175,1089]} 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 d6 5. Nc3 exd5 6. cxd5 g6 7. Nd2 Bg7 8. e4 O-O 9. Be2 Re8 10. O-O Na6 11. f3 Nd7 {A79: Modern Benoni: Classical: 9...Re8 10 Nd2 Na6 11 f3.} 12. Kh1 {[#]} Rb8 $146 ({Predecessor:} 12... Nc7 13. a4 Qe7 14. Nc4 Ne5 15. Ne3 f5 16. f4 Nf7 17. exf5 Bxf5 18. Nxf5 gxf5 19. Bh5 Rf8 20. Ra3 Kh8 21. Re1 Qd7 22. g4 {1-0 (51) Kudr,R (2343)-Anikin,V (2313) ICCF email 2018}) 13. Nc4 Ne5 {White is slightly better.} 14. Ne3 f5 15. f4 Nf7 16. exf5 gxf5 17. Bd3 Qf6 18. Qh5 {[%cal Re3f5]} Qg6 19. Qh3 {[%cal Re3f5]} (19. Qh4 {looks sharper.} Nh6 20. Bb5 Rf8 21. h3 Bf6 22. Qf2) 19... Nh6 $1 20. Bd2 Bd7 21. Rae1 b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 22. Rf3 (22. a4 $14) 22... c4 23. Rg3 Qf6 (23... Ng4 $15 24. Nxg4 Rxe1+ 25. Bxe1 fxg4 26. Bxg6 gxh3) 24. Bb1 {[#] And now Nxb5! would win.} (24. Ncd1 $5 {[%cal Rd2c3]} b4 25. Nxc4 $16 (25. Bxc4 Nc5 $11)) 24... b4 25. Ncd1 Rbc8 26. Rf1 Rf8 $2 ({Black should try} 26... c3 $14 27. bxc3 bxc3 28. Bxc3 Rxc3 29. Nxc3 Qxc3) 27. a3 $18 c3 28. bxc3 {[%mdl 64] [#] Overworked Piece} bxc3 29. Nxc3 ({White should play} 29. Bxc3 $18 Rxc3 30. Nxc3) 29... Rxc3 $4 {[%mdl 8192]} (29... Kh8 $16) 30. Bxc3 {White is clearly winning.} Qxc3 31. Qxh6 $1 Re8 (31... Qf6 $142 32. Qh5 Qf7) 32. Qxd6 {[%mdl 64] Double Attack. Accuracy: White = 71%, Black = 56%.} 1-0

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "4.4"]
[White "Keymer, Vincent"]
[Black "Harikrishna, Pentala"]
[Result "0-1"]
[ECO "A17"]
[WhiteElo "2476"]
[BlackElo "2663"]
[Annotator "TA RC"]
[PlyCount "70"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,70,6,8,8,18,19,19,14,21,13,16,15,6,15,10,16,20,6,47,47,51,49,42,34,41,33,43,30,45,-108,-100,-192,-172,-183,-187,-249,-241,-247,-246,-243,-260,-245,-251,-364,-362,-716,-686,-697,-700,-698,-698,-715,-718,-717,-706,-691,-682,-978,-944,-1193,-1178,-1138,-1126]} 1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. Nc3 Bd6 5. b3 b6 6. Bb2 {A17: English Opening: 1...Nf6 with ...Bb4.} a6 7. cxd5 exd5 8. g3 {The position is equal.} O-O 9. Bg2 Bb7 10. O-O Re8 11. Rc1 Nbd7 {[#]} 12. Re1 $146 ({Predecessor:} 12. Ne2 a5 13. Ned4 Nc5 14. Qc2 Bf8 15. Rfd1 Nfe4 16. d3 Nd6 17. a3 Qd7 18. h4 {½-½ (52) Tomashevsky,E (2712)-Ganguly,S (2644) Germany 2020}) 12... c5 13. d4 Bf8 14. Ne2 a5 15. a4 Ne4 16. Nf4 Ndf6 17. Ne5 cxd4 18. exd4 Bb4 19. Re3 $2 (19. Re2 $1 $14) 19... Bd2 $17 {Black keeps a firm grip on the game.} 20. Re2 (20. Rxe4 $17 {is a better defense.} Nxe4 21. Bxe4 Rxe5 22. Bxh7+ Kxh7 23. Qxd2) 20... Bxc1 $19 21. Qxc1 Rc8 22. Qe3 {[#]} (22. Rc2 $142) 22... Ba6 $1 23. Nfd3 Nd7 24. Bh3 Nxe5 25. dxe5 Rc7 26. Qd4 (26. Re1 $142) 26... Nc5 27. Nxc5 $2 (27. Bf5) 27... bxc5 {Black is clearly winning.} 28. Qd2 Bxe2 29. Qxe2 c4 30. bxc4 dxc4 31. Bc3 Qd3 32. Qb2 Qd1+ {[%mdl 64] [#] Double Attack} 33. Kg2 Qd5+ 34. Kg1 Rb7 35. Qc1 Qd3 {Accuracy: White = 57%, Black = 96%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "5.1"]
[White "Keymer, Vincent"]
[Black "Studer, Noel"]
[Result "0-1"]
[ECO "D38"]
[WhiteElo "2476"]
[BlackElo "2422"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,92,7,7,8,6,1,0,0,0,0,0,0,-12,0,-15,22,0,0,0,0,0,7,0,9,-14,0,0,8,0,4,0,0,0,17,0,14,-80,-92,-82,-80,-97,-96,-175,-65,-76,-79,-153,-153,-137,-132,-191,0,-135,0,-90,-90,-94,-25,-143,-112,-924,-860,-740,-1069,-595,-595,-595,-562,-5122,-5097,-29971,-29972]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 h6 6. Bxf6 Qxf6 7. e3 O-O 8. Qb3 c5 9. cxd5 exd5 10. dxc5 Bxc3+ 11. Qxc3 Qxc3+ 12. bxc3 Nd7 {[#] D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} 13. Nd4 $146 ({Predecessor:} 13. Rd1 Nf6 14. Nd4 Bd7 15. f3 Rfc8 16. Nb3 Ba4 17. Rd4 Bxb3 18. axb3 Rxc5 19. Kd2 Ra5 20. Bd3 {1-0 (43) Carlsen,M (2863)-Ding,L (2791) chess24.com INT 2020}) 13... Nxc5 14. f3 Bd7 {The position is equal.} 15. Kd2 Rfc8 16. Be2 Rc7 17. Rhc1 Rac8 18. Rab1 a6 19. c4 dxc4 20. Bxc4 Na4 21. Bb3 Nc3 22. Ra1 b5 23. Ne2 b4 24. Nxc3 bxc3+ 25. Kc2 a5 26. Rab1 Kf8 27. Rd1 Rb8 28. e4 f5 29. e5 (29. Rd3 $11) 29... f4 $1 $17 {Hoping for ...Bf5+.} 30. e6 Be8 {Strongly threatening ...Bg6+.} 31. Bd5 Rd8 32. Rb6 (32. Rd3 $17 {is a better defense.}) 32... Ke7 (32... Rc5 $1 $19 33. Bb3 Rxd1 34. Kxd1 a4) 33. Kc1 $15 Rc5 34. Be4 (34. Rb7+ $142 Kf6 35. Be4 Rxd1+ 36. Kxd1) 34... Rxd1+ $17 35. Kxd1 {[%mdl 4096] Endgame KRB-KRB} Ba4+ 36. Kc1 (36. Bc2 $17 {keeps fighting.} Rd5+ 37. Kc1 Bxc2 38. Kxc2) 36... c2 $2 (36... Rg5 $19 37. Bc2 Be8 38. Rb7+ Kxe6 39. Bb3+ Kd6) 37. Bd3 (37. Rb7+ $11 Kxe6 38. Rxg7) 37... Rc3 ({Black should try} 37... Rg5 $1 $17 {[%cal Rg5g2]} 38. Bxc2 Bxc2 39. Kxc2 Rxg2+ 40. Kd3 Rxh2) 38. Bf5 {[#]} (38. Bb5 $11 Ra3 39. Bxa4 Rxa4 40. Rb7+ Kxe6 41. Rxg7) 38... Kf6 $1 {[%cal Rf6f5]} 39. Be4 {[#]} Rc5 (39... Re3 $1 $17 {[%cal Re3e1] ( -> ...Re1+)} 40. Bxc2 Bxc2 41. Kxc2 Re2+ {[%mdl 64] Double Attack} 42. Kd3 Rxg2) 40. Rb2 (40. Rd6 $11 {remains equal.}) 40... Kxe6 41. Bxc2 $2 {[%mdl 8192] This costs White the game.} (41. Rb6+ $17 Ke5 42. Rb7) 41... Kd5 $19 42. Kd2 Rxc2+ 43. Rxc2 Bxc2 44. Kxc2 Kc4 45. Kd2 Kd4 46. h4 h5 {Accuracy: White = 50%, Black = 81%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "5.2"]
[White "Wojtaszek, Radoslaw"]
[Black "Harikrishna, Pentala"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2690"]
[BlackElo "2663"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,71,20,17,23,24,36,16,17,24,21,16,23,24,29,33,23,38,31,10,14,13,32,23,25,29,25,5,11,9,14,8,60,60,61,58,116,116,108,110,372,50,50,52,316,291,272,32,24,0,620,620,589,589,1156,1141,4167,2004,1654,1293,29994,29995]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 b6 {6...b6 is setting a new trend. Played by Alexander Grischuk in June 2020.} 7. Be2 dxc4 {D37: Queen's Gambit Declined: 5 Bf4.} 8. Bxc4 Ba6 9. Qe2 Bxc4 {The position is equal.} 10. Qxc4 c5 11. dxc5 bxc5 12. O-O {[#]} Nbd7 $146 ({Predecessor:} 12... Nc6 13. Rac1 Rc8 14. Ne5 Qb6 15. Nxc6 Rxc6 16. b3 h6 17. Rfd1 Qb7 18. h3 Rfc8 {1-0 (97) Carlsen,M (2842)-Nakamura,H (2777) Saint Louis 2018}) 13. Rfd1 Qb6 14. Rd2 Qb7 15. Rad1 Nb6 16. Qe2 h6 17. h3 Nfd5 18. Be5 Rfd8 19. e4 (19. b3 {is interesting.} Rac8 20. Nxd5 exd5 21. Qd3 c4 22. Qf5) 19... Nxc3 20. Bxc3 Rxd2 21. Rxd2 Rd8 (21... c4 $11) 22. Rxd8+ $14 Bxd8 23. Qb5 {Black must now prevent Qe8+.} Be7 (23... Qe7 $14) 24. Qe8+ $16 Bf8 25. Ne5 a6 $2 {[%mdl 8192]} (25... Qe7 $16 {was called for.} 26. Qb8 Kh7) 26. a4 $2 ({Better is} 26. Ba5 $18) 26... Qe7 $14 27. Qc6 $36 {[%mdl 2048] White has some pressure.} Qd8 $2 {[%mdl 8192]} ({Black should play} 27... Qd6 $1 $14) 28. Qb7 Be7 29. Nc6 $2 ({Not} 29. Qxa6 Qd1+ 30. Kh2 Nxa4 $16) (29. a5 $18 Na4 30. g3 (30. Qxa6 Nxc3 31. bxc3 Bf6 $11)) 29... Qd1+ 30. Kh2 Bg5 $2 {[%mdl 8192]} (30... Bd6+ $11 31. e5 Qc1) 31. Qxb6 $18 Bf4+ 32. g3 Bxg3+ 33. Kxg3 {Intending Qb8+ and mate.} Qg1+ {[#]} 34. Kf3 $1 Qd1+ {[#]} 35. Ke3 $1 Qe1+ 36. Bxe1 {Accuracy: White = 69%, Black = 58%.} 1-0

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "5.3"]
[White "Adams, Michael"]
[Black "Edouard, Romain"]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "2709"]
[BlackElo "2614"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,53,10,40,46,31,47,48,42,285,202,208,226,796,563,554,582,826,652,795,759,799,716,29991,29992,29992,2085,1909,1764,29993,3573,2954,848,2024,1270,1269,1238,1734,1037,29989,956,947,941,6619,6610,29989,29990]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. Ba4 Ngf6 5. O-O Nxe4 6. Re1 $1 {[%cal Re1e4] B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} Nef6 7. d4 cxd4 8. Nxd4 {[#] White is slightly better.} (8. Qxd4 e5 $15) 8... d5 $146 ({Black should play} 8... e6 $14) ({Predecessor:} 8... e6 9. Nb5 a6 10. Nxd6+ Bxd6 11. Qxd6 Qe7 12. Qxe7+ Kxe7 13. c4 b6 14. Nc3 Bb7 {0-1 (47) Antipov,M (2589)-Sakaev,K (2584) St Petersburg 2018}) 9. Bf4 a6 10. Nc3 $40 {[%cal Bb1c3,Bc3d5,Bd5f6][%mdl 160] Nf5 is the strong threat. White attacks with force.} e6 $2 (10... b5) 11. Rxe6+ fxe6 12. Nxe6 Qb6 13. Nc7+ Kf7 14. N3xd5 ({Less strong is} 14. Nxa8 Qxb2 15. Bd2 (15. Nxd5 Nc5 $16) 15... Nc5 $14) 14... Qa5 15. Bb3 {White wants to mate with Nxf6+.} ({Not} 15. Qe2 $2 Qxa4 16. c4 (16. Qe6+ $2 Kg6 $19) 16... Nc5 $17) 15... Ra7 16. Nxf6+ Kxf6 {[#]} 17. Ne8+ (17. Qg4 $142 $1 {[%mdl 512]} Qe5 18. Bxe5+ Nxe5 19. Ne8+ Ke7 20. Qxc8 g6 21. Rd1 Nf3+ 22. gxf3 Bh6 23. Qe6+ Kf8 24. Qf7#) 17... Ke7 $18 18. Nd6 Qb4 19. Nxc8+ (19. Qe2+ $142 Ne5 20. Qxe5+ Kd7 21. Qe8+ Kc7 {[#]} 22. Nb5+ $1 {[%mdl 576] Double Attack, Discovered Attack (Double check)} Kb6 23. Bc7+ Kc5 24. Qe5+ Kc6 25. Qd5#) 19... Kd8 20. Bd2 (20. Be6 $142 Bd6 21. Bxd6) 20... Qd4 21. Nxa7 {White threatens Ba5+ and mate.} Qxa7 22. Be6 {Intending Bg5+ and mate.} b5 23. Be3 Qc7 24. Qd5 (24. Bb6 $142 Ke7 25. Bxc7 Kxe6 26. Qg4+ Kf7 27. Qxd7+ Be7 28. Re1 Re8 29. Bd6) 24... Bd6 25. Rd1 Ke7 26. Bxd7 Qxd7 27. Bg5+ {Black got outplayed after the opening. Accuracy: White = 44%, Black = 26%.} 1-0

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "5.4"]
[White "Naiditsch, Arkadji"]
[Black "Anton Guijarro, David"]
[Result "0-1"]
[ECO "C68"]
[WhiteElo "2581"]
[BlackElo "2590"]
[Annotator "TA"]
[PlyCount "118"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,118,-16,0,-9,-12,-12,-20,-10,75,71,61,75,69,69,112,47,60,52,43,41,38,16,192,198,276,135,225,16,277,0,150,0,55,-41,-41,-64,-29,-28,-36,-36,-35,-31,0,0,0,-98,0,-5,-6,-142,0,-203,-201,-216,-210,-263,-209,-214,-204,-189,-148,-1399,-1387,-1221,-357,-699,-686,-1488,-1379,-1429,-952,-864,-755,-1186,-1079,-1113,-989,-1022,-1004,-2054,-1493,-1753,-1661,-1409,-4778,-2033,-2554,-1835,-1616,-6207,-1291,-29972,-29975,-29977,-29978,-29979,-29980,-29984,-29979,-29978,-29977,-29984,-29974,-29983,-29984]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bg4 6. h3 h5 7. d3 Qf6 8. Nbd2 g5 9. b4 {[#] C68: Ruy Lopez: Exchange Variation, sidelines.} Be6 $5 $146 {[%mdl 8] New and interesting.} ({Predecessor:} 9... Qg7 10. Nc4 f6 11. hxg4 hxg4 12. Nxg5 Qh6 13. Nh3 Qg6 14. Ne3 gxh3 15. g3 Bxb4 16. Rb1 Bc5 17. Rxb7 {1-0 (38) Guseinov,G (2593)-Sanal,V (2563) Tallinn 2019}) 10. Bb2 Bd6 11. d4 {[%cal Rd4e5] The position is equal.} Qg7 (11... g4 $1 $11 {keeps the balance.} 12. dxe5 Qg7 13. exd6 {[%mdl 64] Discovered Attack} Qxb2) 12. Nxe5 $16 Bxe5 13. dxe5 Ne7 14. Nb3 $36 {[%mdl 2048] White has good play.} Rd8 15. Qe1 (15. Qc1 $16) 15... Bc4 $14 16. Nc5 Bxf1 17. Qxf1 b6 18. Nxa6 Rc8 $2 (18... O-O $1 $11) 19. Rd1 $1 $18 g4 {[#]} (19... Qg6 {was called for.}) 20. h4 (20. Rd7 $1 $18 {[%mdl 512]}) 20... Ng6 {[#]} (20... Qg6 $16) 21. b5 $2 (21. Rd7 $1 $18 {[%mdl 512]}) 21... c5 $2 {[%mdl 8192] [#]} (21... Nxe5 $11 22. bxc6 Nf3+ {[%mdl 64] Discovered Attack} 23. gxf3 Qxb2) 22. Rd5 $2 (22. Rd7 $1 $18 {[%mdl 512]}) 22... O-O ({Black should play} 22... Nf4 $1 $11) 23. c4 (23. Qc1 $16 {aiming for e6!} Rfe8 24. e6 $1 {[%mdl 512]}) 23... Nxh4 (23... Nf4 $1 $11) 24. Qe2 {[#]} (24. Qc1 $1 $14 Rfe8 25. e6 $1 {[%mdl 512]}) 24... Nf3+ $1 $15 {[%mdl 512]} 25. Kf1 {[#]} (25. gxf3 gxf3+) 25... Nd4 $1 {[%mdl 512]} 26. Bxd4 cxd4 27. Nb4 Rfe8 28. Nc6 Ra8 29. Qd2 Re6 30. Qxd4 (30. g3 $11) 30... h4 ({Better is} 30... Qg5 $17 31. Qb2 h4) 31. Rd8+ $1 $11 Re8 32. Ne7+ {[#]} (32. Rxe8+ $11 {was the only way to keep the balance.} Rxe8 33. Qd7) 32... Kh7 ({Black should try} 32... Kf8 $1 $17 33. Rxa8 Rxa8) 33. Rxa8 $2 (33. Rxe8 $1 $11 {and White has nothing to worry.} Rxe8 34. Qd7) 33... Rxa8 {[%mdl 4096] Endgame KQR-KQN} 34. Nf5 Qg5 {[%mdl 1024] ( -> ...Qc1+). Black has strong compensation.} 35. Qb2 Rd8 36. Ne3 h3 {And now ...h2 would win.} 37. g3 Rd3 {...Rxe3 is the strong threat.} 38. Ke2 $2 {[%mdl 8192]} (38. Qe2 $17 Rd4 39. e6) 38... Rxe3+ $19 39. fxe3 {KQ-KQ} Qg6 $2 (39... Qh5 {Threatens to win with ...h2.} 40. Qa1 h2) 40. Qb1 $2 (40. Kd3 Qg5 41. Ke2) 40... Qe6 41. Qc1 Qxe5 42. Qf1 Qb2+ 43. Kd3 Qa3+ 44. Kd4 Qd6+ 45. Kc3 Qe5+ 46. Kd3 Kg6 47. a4 h2 48. Qg2 Qh5 49. Qh1 Qh3 50. e5 Kg7 51. e6 fxe6 52. c5 Qh7+ (52... Qh5 $142 53. e4 Qh3) 53. Kc3 Qh5 {Black mates.} 54. cxb6 cxb6 55. a5 Qc5+ 56. Kd2 Qb4+ 57. Kc2 Qc4+ 58. Kd2 Qa2+ 59. Kd3 Qd5+ {What a bad dream for White. Accuracy: White = 43%, Black = 49%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "6.1"]
[White "Studer, Noel"]
[Black "Keymer, Vincent"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "2422"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,77,22,14,7,6,28,13,5,12,8,3,1,9,13,-34,5,0,5,-6,-3,-17,-14,-54,-47,-48,-44,-101,-102,-115,-37,-67,-48,-45,0,0,0,0,0,-135,-122,-143,-143,-239,-245,-297,-277,-285,-274,-280,-195,-385,-384,-354,-358,-414,-320,-439,-429,-424,-428,-5497,-626,-1679,-797,-5581,-5306,-29988]} 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Bf4 Nc6 5. e3 Nf6 6. Nc3 a6 7. Be2 Bf5 {D10: Slav Defence: 3 cxd5 (without early Nf3) and 3 Nc3.} 8. Nf3 Nh5 9. Be5 {Threatens to win with Nh4.} e6 {The position is equal.} 10. h3 Nf6 11. Qb3 Na5 12. Qa4+ Nc6 {[#]} 13. Bh2 $146 ({Predecessor:} 13. O-O Be7 14. Rfc1 O-O 15. Bg3 Rc8 16. a3 Na5 17. b4 Nc4 18. Ne5 Nd6 19. Bf4 {½-½ (36) Malchev,E (2437)-Yurov,A (2453) ICCF email 2018}) 13... b5 (13... Qb6 $5 {[%cal Rb6b2]} 14. Qb3 Qxb3 15. axb3 Rc8 $11) 14. Qd1 Bd6 15. Ne5 Bxe5 16. dxe5 Nd7 17. g4 Bg6 $1 18. O-O h5 {aiming for ...hxg4.} (18... Ncxe5 $6 19. f4 $16) 19. Bg3 (19. Rc1 $15 Rc8 20. f4) 19... hxg4 $17 20. hxg4 {[#]} Ndxe5 ({Resist} 20... Ncxe5 21. f4 $15) (20... Qb6 $1 $17 21. Qd2 Rd8) 21. f4 $1 $15 {[%cal Rf4e5]} Nc4 $36 {[%mdl 2048] Black is pushing.} 22. Bxc4 $1 dxc4 23. Qf3 Ne7 {[#]} 24. f5 $1 {[%cal Rf5g6][%mdl 512]} exf5 25. Rad1 (25. gxf5 $11 {was the only way to keep the balance.} Nxf5 26. Qc6+ Kf8 27. Rxf5 {[%mdl 64] Decoy} Bxf5 28. Qc5+ Kg8 29. Qxf5) 25... Qc8 $17 26. Nd5 {[#]} Nxd5 $1 ({Much worse is} 26... fxg4 $6 27. Nc7+ Qxc7 28. Qxa8+ Qc8 29. Qxc8+ Nxc8 30. Rf4 $11) 27. Rxd5 (27. Qxd5 $17 fxg4 28. Bd6) 27... fxg4 $19 28. Re5+ Kf8 29. Qd5 Kg8 30. Rg5 {Strongly threatening Rxg6.} Rh3 31. Rxg6 $2 (31. Be5 Qd8 32. Qxd8+ Rxd8 33. Bd4) 31... Rxg3+ {[%mdl 64] Double Attack} 32. Kh2 Rh3+ 33. Kg2 {[#]} Rf3 $1 34. Rg5 (34. Rxf3 gxf3+) 34... Rxf1 {Black is clearly winning.} 35. Kxf1 Qd8 36. Qc5 (36. Qxd8+ $142 Rxd8 37. Ke2) 36... Qf6+ 37. Ke1 Rd8 38. Rd5 Qh4+ 39. Ke2 {Accuracy: White = 47%, Black = 67%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.28"]
[Round "6.2"]
[White "Harikrishna, Pentala"]
[Black "Wojtaszek, Radoslaw"]
[Result "1/2-1/2"]
[ECO "A28"]
[WhiteElo "2663"]
[BlackElo "2690"]
[Annotator "TA"]
[PlyCount "117"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]

{[%evp 10,117,10,-18,0,0,0,-3,0,-6,0,0,0,0,0,-8,6,3,4,10,11,22,39,11,41,0,0,0,0,-110,-95,-118,-110,-113,-110,-109,-106,-112,-50,-52,-60,-44,-46,-76,-77,-93,-51,-116,-112,-120,-105,-166,-165,-132,-133,-188,-186,-204,-155,-174,-172,-174,-139,-187,0,-62,0,0,0,0,0,0,0,-9,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-24,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 Nf6 2. Nc3 e5 3. d3 Nc6 4. Nf3 d5 5. cxd5 Nxd5 6. e3 Nxc3 {A28: English Opening: Four Knights Variation.} 7. bxc3 Bd6 8. Be2 O-O 9. O-O Qe7 10. Nd2 b6 {[#]} 11. Bf3 $146 ({Predecessor:} 11. Nc4 Bb7 12. a4 Nd8 13. d4 Re8 14. a5 Rb8 15. Re1 f6 16. Nxd6 Qxd6 17. Qb3+ {½-½ (57) Alekseev,E (2616)-Golubovic,B (2424) Neum 2004}) 11... Bb7 12. Nc4 Nd8 {[%cal Bc6d8,Bd8e6,Be6g5,Bg5e4,Be4c3,Bc3e2][%mdl 32]} 13. a4 Bxf3 14. Qxf3 Ne6 15. d4 Ng5 16. Qd5 exd4 17. exd4 Ne4 18. Nxd6 cxd6 19. Ba3 (19. Bb2 $11) 19... Nxc3 $17 20. Qf3 Ne2+ 21. Kh1 Nxd4 22. Qd3 Ne6 23. Bxd6 Rfd8 ({Black should play} 23... Qd7 $17 24. Rfd1 Rfd8) 24. Qxh7+ $1 $15 Kxh7 25. Bxe7 Rd2 26. h3 Rc8 $36 {[%mdl 2048] Black is in control.} 27. Bh4 Rcc2 28. Rfd1 ({White should try} 28. Rfb1 $15) 28... Rxd1+ $17 29. Rxd1 {[%mdl 4096] Endgame KRB-KRN} Rc4 30. Bg3 (30. g4 $17) 30... Rxa4 $19 31. Rd7 Kg6 32. Bb8 (32. Rb7 $17) 32... a5 33. Rb7 Rb4 34. Bd6 Rb1+ 35. Kh2 b5 36. g4 f5 $2 ({Better is} 36... Rd1 $19 37. Rb6 b4) 37. Rb6 (37. f4 $11) 37... fxg4 (37... Kf7 $15 38. Rb7+ Kg8) 38. hxg4 $11 Kf7 39. Rb7+ Kg6 40. Rb6 Kf7 {With the idea ...g5.} 41. Rb7+ Kg6 42. f4 Nd4 43. Bf8 Rb2+ 44. Kh3 Rb3+ 45. Kg2 Rb2+ 46. Kg3 Rb3+ 47. Kg2 Rb2+ 48. Kf1 Nf3 {[#] Hoping for ...Nh2+.} 49. Rxg7+ Kf6 50. Rd7 Ke6 51. Ra7 {The position is equal.} Nh2+ 52. Ke1 Nxg4 {White must now prevent ...a4.} 53. Rxa5 Kf5 54. Bg7 Rb3 55. Kd2 Kxf4 56. Kc2 Rg3 57. Rxb5 Ne3+ {[%mdl 64] [#] Discovered Attack} 58. Kb3 Rxg7 59. Rh5 {Whites escaped into a draw. Accuracy: White = 76%, Black = 86%.} 1/2-1/2

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "6.3"]
[White "Edouard, Romain"]
[Black "Adams, Michael"]
[Result "0-1"]
[ECO "A26"]
[WhiteElo "2614"]
[BlackElo "2709"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,97,-26,-20,-30,-28,-42,-16,-54,0,-33,-13,-40,-20,-50,-37,-70,-54,-60,-32,-47,-9,-45,-39,-38,0,-37,-23,-65,-61,-64,-59,-77,-43,-43,-12,-25,-8,-107,-97,-94,-93,-134,-141,-118,-133,-133,-135,-143,-102,-91,-63,-62,-60,-92,-45,-132,-27,-162,-166,-301,0,0,0,-81,-75,-748,-8,-5289,0,-14]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d3 g6 5. Bg5 Bg7 6. g3 d6 7. Bg2 h6 8. Bxf6 Bxf6 9. O-O O-O 10. Rb1 a5 11. a3 Bg7 12. b4 axb4 13. axb4 Ne7 14. b5 Be6 15. Nd2 c6 16. bxc6 {A26: English Opening vs King's Indian with ...Nc6 and d3.} bxc6 17. Rb7 {[#]} Bc8 $146 (17... e4 $5 18. d4 (18. Ncxe4 $2 f5 $19) 18... Bxd4 19. Ncxe4 Bg7 $11) ({Predecessor:} 17... e4 18. Ncxe4 f5 19. Nxd6 Qxd6 20. Qb3 Rfb8 21. Rb1 Rxb7 22. Qxb7 Ra2 23. Qb8+ Qxb8 24. Rxb8+ Kf7 25. Nb3 Rxe2 26. Rb7 Re1+ {0-1 (26) Rizvi,N-Hatchett,P ICCF email 2017}) 18. Rb3 Be6 (18... d5 $15) 19. Qc2 d5 20. Rfb1 Nf5 21. e3 d4 22. Nd1 dxe3 23. fxe3 Ra6 24. Ne4 Qa5 25. Qf2 h5 26. h3 Raa8 27. Ng5 Bd7 28. Rb7 Qd8 {Hoping for ...Bc8.} 29. Ne4 Bc8 30. R7b3 Qe7 31. g4 hxg4 32. hxg4 Nd6 33. Ndc3 (33. Nxd6 $11 Qxd6 34. Qg3) 33... Bxg4 34. Nxd6 Qxd6 35. Ne4 Qd8 36. Qg3 Bf5 37. Ng5 {[#]} Bh6 $1 {[%cal Rh6g5]} 38. Ne4 Re8 39. c5 Bxe4 40. Bxe4 Rc8 41. Kf2 Kg7 42. Rb6 (42. Ke2 $1 $15) 42... Qe7 (42... Re6 $17 43. Ke2 Ra8) 43. Rb7 {[#]} (43. Bxc6 $11 {and White stays safe.} Qxc5 44. Bxe8 Qc2+ 45. Kg1 Rxe8 46. R6b3) 43... Rc7 $1 $19 {[%cal Rc7b7]} 44. Bxc6 (44. Rxc7 $142 Qxc7 45. Rf1) 44... Rec8 $2 ({Black should play} 44... Qf6+ $19 45. Bf3 Rxb7 46. Rxb7 e4 47. dxe4 Rxe4) 45. Bd5 $11 Bg5 {Threatens to win with ...Bh4.} 46. Qf3 (46. R1b4 $1 $11 {keeps the balance.}) 46... Qxc5 $17 {aiming for ...Rxb7.} 47. Bxf7 $2 {[%mdl 8192]} (47. Bc4 $17) 47... Bxe3+ $2 (47... Qc2+ $2 48. Kg1 $17) ({Better is} 47... Rf8 $19 48. Rxc7 Qxc7) 48. Kg2 $2 {[%mdl 8192]} (48. Qxe3 $11 Rxf7+ 49. Rxf7+ Kxf7 50. Rb6) 48... Bf4 $2 (48... Qc2+ $19 49. Kg3 Bf4+ 50. Kg4 Kxf7) 49. Be6 {[%mdl 32768] Accuracy: White = 44%, Black = 57%. . Loss on time!?} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "6.4"]
[White "Anton Guijarro, David"]
[Black "Naiditsch, Arkadji"]
[Result "1/2-1/2"]
[ECO "D03"]
[WhiteElo "2590"]
[BlackElo "2581"]
[Annotator "RC"]
[PlyCount "112"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "180+2"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:01]} g6 {[%emt 0:00:00]} 3. Bg5 {[%emt 0:00:08]} Bg7 {[%emt 0:00:01]} 4. Nbd2 {[%emt 0:00:04]} d5 {[%emt 0:00:03]} 5. e3 {[%emt 0:00:02]} O-O {[%emt 0:00:02]} 6. Bd3 {[%emt 0:00:03]} c5 {[%emt 0:00:01]} 7. c3 {[%emt 0:00:02]} Nc6 {[%emt 0:00:02]} 8. O-O {[%emt 0:00:14]} Qb6 {[%emt 0:00:02]} 9. Rb1 {[%emt 0:00:08]} Bg4 {[%emt 0:00:11]} 10. h3 {[%emt 0:00:06]} Bxf3 {[%emt 0:00:02]} 11. Nxf3 {[%emt 0:00:03]} Rfe8 {[%emt 0:00:07]} 12. b4 {[%emt 0:00:10]} cxd4 {[%emt 0:00:18]} 13. cxd4 {[%emt 0:00:03]} Ne4 {[%emt 0:00:07]} 14. Bxe4 {[%emt 0:00:19]} dxe4 {[%emt 0:00:02]} 15. Nd2 {[%emt 0:00:01]} Nxb4 {[%emt 0:00:20]} 16. Qa4 {[%emt 0:00:30]} a5 {[%emt 0:00:14]} 17. a3 {[%emt 0:00:02]} Qc6 {[%emt 0:00:01]} 18. Qxc6 {[%emt 0:00:02]} Nxc6 {[%emt 0:00:01]} 19. Nxe4 {[%emt 0:00:11]} h6 {[%emt 0:00:18]} 20. Bf4 {[%emt 0:00:16]} e5 {[%emt 0:00:08]} 21. dxe5 {[%emt 0:00:05]} g5 {[%emt 0:00:02]} 22. Nd6 {[%emt 0:00:10]} gxf4 {[%emt 0:00:17]} 23. Nxe8 {[%emt 0:00:02]} Rxe8 {[%emt 0:00:17]} 24. exf4 {[%emt 0:00:02]} Nd4 {[%emt 0:00:02]} 25. Rxb7 {[%emt 0:00:15]} Ne2+ {[%emt 0:00:02]} 26. Kh2 {[%emt 0:00:01]} Nxf4 {[%emt 0:00:01]} 27. g3 {[%emt 0:00:03]} Nd3 {[%emt 0:00:07]} 28. f4 {[%emt 0:00:03]} Rc8 {[%emt 0:00:02]} 29. Kg2 {[%emt 0:00:16]} Bf8 {[%emt 0:00:05]} 30. Rb3 {[%emt 0:00:12]} Rc2+ {[%emt 0:00:11]} 31. Kf3 {[%emt 0:00:01]} Nc5 {[%emt 0:00:02]} 32. Re3 {[%emt 0:00:01]} a4 {[%emt 0:00:05]} 33. f5 {[%emt 0:00:02]} Nb3 {[%emt 0:00:08]} 34. Kg4 {[%emt 0:00:10]} Bxa3 {[%emt 0:00:07]} 35. e6 {[%emt 0:00:04]} Rc7 {[%emt 0:00:22]} 36. Rd1 {[%emt 0:00:07]} fxe6 {[%emt 0:00:10]} 37. fxe6 {[%emt 0:00:02]} Rg7+ {[%emt 0:00:02]} 38. Kf5 {[%emt 0:00:07]} Be7 {[%emt 0:00:03]} 39. Rd7 {[%emt 0:00:05]} Nc5 {[%emt 0:00:02]} 40. Ra7 {[%emt 0:00:02]} h5 {[%emt 0:00:09]} 41. h4 {[%emt 0:00:02]} Kh7 {[%emt 0:00:01]} 42. Re5 {[%emt 0:00:03]} Kh6 {[%emt 0:00:01]} 43. Rxe7 {[%emt 0:00:02]} Rxe7 {[%emt 0:00:02]} 44. Rxc5 {[%emt 0:00:01]} Ra7 {[%emt 0:00:00]} 45. Kf6 {[%emt 0:00:03]} a3 {[%emt 0:00:01]} 46. Rc1 {[%emt 0:00:01]} a2 {[%emt 0:00:01]} 47. e7 {[%emt 0:00:02]} a1=Q+ {[%emt 0:00:07]} 48. Rxa1 {[%emt 0:00:01]} Rxa1 {[%emt 0:00:02]} 49. e8=Q {[%emt 0:00:02]} Rf1+ {[%emt 0:00:01]} 50. Ke7 {[%emt 0:00:02]} Re1+ {[%emt 0:00:01]} 51. Kd7 {[%emt 0:00:01]} Rxe8 {[%emt 0:00:02]} 52. Kxe8 {[%emt 0:00:01]} Kg6 {[%emt 0:00:02]} 53. Kf8 {[%emt 0:00:02]} Kf6 {[%emt 0:00:02]} 54. Ke8 {[%emt 0:00:05]} Ke6 {[%emt 0:00:01]} 55. Kf8 {[%emt 0:00:02]} Kf6 {[%emt 0:00:01]} 56. Ke8 {[%emt 0:00:01]} Ke6 {[%emt 0:00:02]} 1/2-1/2

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "7.1"]
[White "Studer, Noel"]
[Black "Naiditsch, Arkadji"]
[Result "0-1"]
[ECO "A88"]
[WhiteElo "2422"]
[BlackElo "2581"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,96,25,32,23,30,31,61,44,29,27,24,12,10,-14,-19,-4,-14,-8,-2,-22,0,-59,3,-81,4,-142,-144,-277,-273,-274,-248,-433,-410,-668,-542,-576,-575,-560,-429,-633,-489,-497,-497,-472,-480,-541,-515,-530,-502,-501,-485,-531,-542,-532,-516,-494,-488,-548,-543,-553,-553,-545,-532,-795,-783,-849,-647,-672,-668,-1746,-1746,-1556,-1501,-1262,-971,-933,-931,-29972,-1384,-1145,-1003,-29974,-29976]} 1. d4 f5 2. c4 Nf6 3. Nf3 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O d6 7. Nc3 c6 $1 {[%mdl 4] outshines the older 7...Qe8. Played by Hikaru Nakamura in June 2020.} 8. Re1 Na6 9. a3 {[#] A88: Dutch Defence: Leningrad System: 5 Nf3 0-0 6 0-0 d6 7 Nc3 c6.} Rb8 $146 ({Predecessor:} 9... Qe8 10. Qc2 e5 11. e4 fxe4 12. Nxe4 Nxe4 13. Qxe4 Bf5 14. Qh4 e4 15. Ng5 h6 16. Nxe4 d5 17. cxd5 {0-1 (37) Studer,N (2580)-Sipila,V (2402) chess.com INT 2020}) 10. Qd3 Kh8 11. Bf4 {White is slightly better.} Nc7 12. Rad1 b5 13. cxb5 Nxb5 14. Na2 Nd5 15. Bg5 Nbc7 16. Qc2 Bd7 17. Bd2 Qc8 18. Ba5 (18. e3 $11) 18... Ne8 (18... Qb7 $15) 19. b4 (19. e3 $11) 19... Nef6 (19... f4 $1 $17) 20. Nc1 {[#]} (20. e3 $11 {keeps the balance.}) 20... f4 $1 $17 {White is on the road to losing.} 21. e4 (21. Nd3 $17) 21... fxe3 $1 $19 22. fxe3 Bh6 23. Rd3 $2 (23. Qd3 {only move.}) 23... Bf5 {[%mdl 64] Skewer} 24. Nh4 (24. Qd2 $142) 24... Bxd3 25. Qxd3 Ng4 26. e4 Nde3 27. Bh3 (27. Nf3 $142) 27... Nf2 28. Bxc8 Nxd3 29. Nxd3 Rbxc8 ({Weaker is} 29... Rfxc8 30. Rc1 $19) 30. Nf2 Nc4 31. Ng4 Bg7 32. e5 dxe5 33. Nxe5 Bxe5 34. dxe5 Nxa5 35. bxa5 {[%mdl 4096] Endgame KRR-KRN} c5 36. Ng2 c4 37. Ne3 c3 38. Rc1 Rfd8 39. Kf2 Rd2+ 40. Kf3 Rxh2 41. Ke4 Rd2 42. e6 c2 43. a6 Kg7 44. Ke5 Rd3 45. Ke4 Rxa3 46. Nd5 Rxa6 (46... Rc4+ $142 47. Ke5 Ra5 48. Rxc2 Rxc2 49. Ke4 Rxa6 50. Ne3 Rxe6+ 51. Kd3 {[#]} Rxe3+ $1 {[%mdl 512]} 52. Kxe3 Rc3+ 53. Kd2 Rxg3 54. Ke2 h5 55. Kf1 h4 56. Kf2 Kf6 57. Ke2 Kf5 58. Kd2 Ke4 59. Kc2 h3 60. Kd2 h2 61. Kc2 h1=Q 62. Kd2 Qh2+ 63. Ke1 Rg1#) 47. Ke5 Ra5 {...Rc4 is the strong threat.} 48. Kd4 Rd8 {Accuracy: White = 44%, Black = 69%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "7.2"]
[White "Edouard, Romain"]
[Black "Anton Guijarro, David"]
[Result "0-1"]
[ECO "E94"]
[WhiteElo "2614"]
[BlackElo "2590"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,67,25,64,0,0,0,0,0,12,0,0,0,0,-2,-2,-2,-2,-1,-3,-4,-5,-19,-20,-52,-43,-57,-53,-61,7,-30,-3,-27,-32,-56,-38,-99,-96,-101,-78,-77,-72,-116,-91,-96,-81,-196,-193,-252,-241,-245,-242,-246,-240,-230]} 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Nf3 O-O 6. Be2 Na6 7. O-O e5 8. Be3 {The main line 8.Be3 scores better than 8.Re1.} Qe7 9. c5 {E94: King's Indian: Classical: 6 Be2 e5 7 0-0: Various Black 7th moves.} ({White should play} 9. d5 $14) 9... exd4 $11 10. cxd6 ({Of course not} 10. Bxd4 Nxc5 11. Nd5 Nxd5 $15) 10... cxd6 11. Bxd4 {The position is equal.} Nc5 12. Re1 Ncxe4 13. Nxe4 Qxe4 14. Bc4 {[#]} Qf5 $146 ({Predecessor:} 14... Qf4 15. Qb3 d5 16. Bd3 Qd6 17. Qc3 Re8 18. Rxe8+ Nxe8 19. Re1 Be6 20. h4 Bxd4 21. Qxd4 {0-1 (65) Sipila,V (2447)-Sepp,O (2434) Finland 2016}) 15. Qb3 d5 16. Bd3 Ne4 17. Bxg7 Kxg7 18. Rac1 b6 19. Rc7 Be6 20. Bxe4 dxe4 21. Qc3+ Qf6 (21... Kg8 $15 22. Nd4 Qf6) 22. Nd4 (22. Ng5 $5 {[%cal Rg5e6]} Qxc3 23. Nxe6+ Kg8 24. bxc3 (24. Rxc3 fxe6 25. Rce3 Rad8 $11) 24... fxe6 25. Rxe4 $11) 22... Bd5 23. Re3 {[#] Intending Nf5+! and mate.} Kg8 24. Nb5 Qe6 25. Rxa7 (25. Nd4 $15 Qg4 26. h3 Qd1+ 27. Kh2) 25... Rxa7 $17 26. Nxa7 Ra8 $36 {[%mdl 2048] Keeping White busy.} 27. Nb5 {Strongly threatening Nc7.} Rxa2 {White must now prevent ...Qc6.} 28. h3 Qd7 29. Nd4 h5 30. Ne2 (30. Re1 $17) 30... Ra1+ $19 31. Kh2 {[#]} (31. Nc1 $142) 31... Qd6+ $1 32. g3 {Black is clearly better.} Bb7 {And now ...Qd1 would win.} 33. Qd4 Qxd4 34. Nxd4 {Accuracy: White = 66%, Black = 88%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "7.3"]
[White "Harikrishna, Pentala"]
[Black "Adams, Michael"]
[Result "0-1"]
[ECO "C78"]
[WhiteElo "2663"]
[BlackElo "2709"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,85,25,19,30,25,25,25,22,27,25,32,27,35,28,32,31,35,34,75,67,135,136,184,185,200,154,150,142,144,131,191,87,123,91,168,102,119,128,157,160,194,188,204,79,78,77,95,59,68,0,0,0,0,0,0,0,38,25,24,25,24,31,25,-651,-643,-640,-631,-1205]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bb7 7. d3 Bc5 8. a4 O-O 9. Nc3 Na5 10. axb5 Nxb3 11. cxb3 {C78: Ruy Lopez: Archangelsk and Möller Defences.} axb5 12. Rxa8 Bxa8 13. Nxe5 {White has an edge.} Re8 {With the idea ...b4. is the legacy move (13...b4).} 14. Nf3 d5 {[%cal Rd5e4]} 15. e5 d4 $1 {[%cal Rd4c3]} 16. Nxb5 Nd7 17. Bf4 {[#]} Nf8 $146 ({Predecessor:} 17... Bxf3 18. Qxf3 Nxe5 19. Bxe5 Rxe5 20. Na3 g6 21. Nc4 Re6 22. Qb7 Qe7 23. g3 Bb4 {½-½ (33) Peczkowski,M (2299)-Hinz,H (2319) ICCF email 2014}) 18. b4 Bb6 19. Na3 Ne6 (19... Ng6 $14 20. Bg3 Bxf3 21. Qxf3 Nxe5 22. Bxe5 Rxe5) 20. Bd2 $16 h6 21. Nc4 Bd5 22. b3 c6 23. Ne1 Bc7 24. f4 f5 {[#]} (24... Qh4 $16 25. Qe2 Ra8) 25. Nf3 (25. Qh5 $1 $18) 25... Kh7 26. Qe1 Qe7 (26... Qd7 $16 {was worth a try.} 27. Qa1 Rb8) 27. Qh4 (27. Qf2 $18) 27... Qxh4 28. Nxh4 g6 {[#]} 29. Ra1 $1 Bd8 30. Nf3 g5 31. fxg5 (31. Nd6 $18 Rg8 32. Nxf5) 31... hxg5 32. Ra8 {Black must now prevent Nxg5+!} Rg8 33. Nd6 g4 34. Ra7+ ({White should try} 34. Ne1 $1 $14) 34... Kg6 $1 $11 35. Ne1 f4 36. b5 cxb5 37. Nxb5 f3 {...Rf8 is the strong threat.} 38. Ra6 {aiming for Rd6.} Rf8 {Hoping for ...f2+.} 39. gxf3 gxf3 40. Nxf3 Rxf3 41. Rd6 $2 {[%mdl 8192]} (41. Nxd4 $11 Rxd3 42. Nxe6 Rxd2 43. Nxd8+ Kf5 44. e6) 41... Rxd3 $19 {[%mdl 64] Double Attack} 42. Be1 Bxb3 43. Na7 {Quite a comeback for Black. Accuracy: White = 57%, Black = 67%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "7.4"]
[White "Keymer, Vincent"]
[Black "Wojtaszek, Radoslaw"]
[Result "1/2-1/2"]
[ECO "A17"]
[WhiteElo "2476"]
[BlackElo "2690"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,66,0,16,10,17,7,20,6,4,-19,17,16,16,16,9,12,14,16,24,22,46,30,35,30,30,21,32,12,49,-147,-124,-137,0,0,0,0,0,0,335,329,308,327,312,241,231,231,340,341,339,-27,18,19,19,19,19,19,22,16,26]} 1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. Nc3 Nbd7 5. b3 b6 6. Bb2 {A17: English Opening: 1...Nf6 with ...Bb4.} Bb7 7. Rc1 a6 8. cxd5 exd5 {[#]} 9. Ne2 $146 ({Predecessor:} 9. d4 Bd6 10. g3 O-O 11. Bg2 Re8 12. O-O Qe7 13. Ne2 Rad8 14. Nf4 Ne4 15. Qc2 {1-0 (38) Nihal,S (2612)-Nepomniachtchi,I (2767) Moscow 2019}) 9... g6 10. g3 Bd6 11. Bg2 O-O 12. O-O Qe7 13. Nf4 Rac8 14. h4 Ba3 15. Qc2 Bxb2 16. Qxb2 c5 17. h5 b5 18. h6 $36 {[%mdl 2048] White has good play.} Rfe8 19. g4 $2 (19. Nh2 $1 $14 {stays ahead.}) 19... d4 $1 $17 20. g5 Ne4 (20... Bxf3 $17 21. gxf6 Qe4) 21. exd4 Nxg5 22. dxc5 $1 {[%csl Gh6][%cal Rb2g7] [#]} (22. d5 $2 Nxf3+ 23. Bxf3 Ne5 $19) 22... Nxf3+ 23. Bxf3 {[%csl Gh6][%cal Rb2g7]} Qg5+ $2 {[%mdl 8192]} (23... Ne5 $11 24. Bxb7 Qxb7) 24. Ng2 $18 {[%csl Gh6][%cal Rb2g7]} Qxh6 25. Bxb7 Rxc5 {intending ...Rh5.} 26. Rxc5 ({But not} 26. Bxa6 $2 Rh5 $19) 26... Nxc5 27. Bf3 Nd3 (27... Qg5 {was called for.} 28. d4 Qf6) 28. Qf6 Ne5 {[#] White must now prevent ...Qg5.} 29. Re1 $2 ({White should play} 29. d4 $18 Nxf3+ 30. Qxf3) 29... Nxf3+ (29... Qg5 $5 {[%cal Rg5f6]} 30. Rxe5 Qxf6 31. Rxe8+ Kg7 $15) 30. Qxf3 {The position is equal.} Rxe1+ 31. Nxe1 {aiming for d4.} Qxd2 32. Nd3 Qxa2 33. Qd5 Qa1+ {Accuracy: White = 75%, Black = 71%.} 1/2-1/2

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "8.1"]
[White "Anton Guijarro, David"]
[Black "Studer, Noel"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2590"]
[BlackElo "2422"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,57,0,9,3,0,0,0,0,-25,-14,-8,-6,-25,-8,-52,90,116,168,151,119,21,69,70,71,18,32,0,5,4,4,0,14,25,25,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 d5 3. g3 c5 4. Bg2 cxd4 5. O-O e6 6. Nxd4 e5 7. Nb3 Be6 8. Nc3 Be7 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} 9. f4 exf4 10. gxf4 g6 11. Nd4 Nc6 12. Nxe6 fxe6 13. e4 {[%cal Re4d5] [#]} d4 $146 ({Predecessor:} 13... dxe4 14. Nxe4 Nxe4 15. Bxe4 Qxd1 16. Rxd1 Bc5+ 17. Kg2 Ke7 18. c3 Rhf8 19. b4 Bd6 {1-0 (52) Ponkratov,P (2630)-Shuvalova,P (2441) Khanty-Mansiysk 2018}) 14. Ne2 e5 (14... Qb6 $15 {stays ahead.} 15. Kh1 Rd8) 15. fxe5 $16 Ng4 {[#]} (15... Nxe5 $16 16. Nxd4 O-O) 16. Nf4 $1 $18 Ncxe5 17. Nd3 (17. Nd5 $16) 17... Qc7 18. Bf4 {aiming for Bh3.} Bd6 $1 19. Bh3 ({White should try} 19. Nxe5 $16 Nxe5 20. Bxe5 Bxe5 21. Qg4) 19... h5 {[#] ...Nxd3 is the strong threat.} 20. Bxg4 Nxg4 21. e5 Be7 22. Qe2 g5 23. Bd2 O-O-O 24. Rf7 {And now Bb4 would win.} Nh6 {The position is equal.} 25. Rf2 Ng4 26. Rf7 Nh6 $1 {[%cal Rh6f7]} 27. Rf2 Ng4 28. Rf7 Nh6 29. Rf2 {Accuracy: White = 72%, Black = 81%.} 1/2-1/2

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "8.2"]
[White "Naiditsch, Arkadji"]
[Black "Edouard, Romain"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2581"]
[BlackElo "2614"]
[Annotator "TA"]
[PlyCount "41"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,41,0,12,-13,0,-11,0,-19,-16,-37,-25,-16,-26,-25,84,75,95,67,188,188,177,189,532,522,728,689,625,281,280,288,632,632,633,604]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. Bxc6 bxc6 5. b3 f6 6. e5 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6.} Nh6 7. O-O Nf7 {[#]} 8. exf6 $146 {The position is equal.} ({Predecessor:} 8. Bb2 Be7 9. Na3 O-O 10. Nc4 Ba6 11. d3 Bxc4 12. dxc4 fxe5 13. Nxe5 Nxe5 14. Bxe5 d6 {1-0 (67) Vasquez Schroder,R (2542)-Moiseenko,A (2711) Khanty-Mansiysk 2013}) 8... Qxf6 9. Nc3 d5 10. Re1 Bd6 {Hoping for ...0-0.} 11. Ba3 e5 (11... h6 $11) 12. d4 $1 $16 {[%cal Rd4e5]} e4 13. dxc5 Be7 {[#]} ({Black should play} 13... Bc7 $14 14. Nxd5 cxd5 15. Qxd5 {[%mdl 64] Double Attack} O-O 16. Qxa8 exf3 17. Qxf3 Qxf3 18. gxf3 Ne5) 14. Nxd5 $1 $18 {[%mdl 512]} cxd5 15. Qxd5 {[%mdl 64] Double Attack} Rb8 $2 (15... exf3 {is tougher.} 16. Qxa8 O-O) 16. Qxe4 Bf5 17. Qa4+ Kf8 {[#]} 18. c6 (18. Rxe7 $142 $1 {[%mdl 512]} Qxa1+ (18... Qxe7 19. c6) 19. Re1 Qxe1+ 20. Nxe1) 18... Bxa3 19. Qxa3+ Qd6 $2 (19... Kg8 20. Qxa7 Rf8) 20. Qxa7 {Threatens to win with Rad1.} Rc8 21. Rad1 {Black got outplayed after the opening. Accuracy: White = 79%, Black = 32%.} 1-0

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "8.3"]
[White "Adams, Michael"]
[Black "Harikrishna, Pentala"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2709"]
[BlackElo "2663"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,91,52,40,62,34,32,33,24,25,35,26,38,0,0,0,0,13,11,6,0,0,-6,0,-8,-39,20,-25,-22,-13,0,0,0,0,0,0,31,31,31,31,36,9,13,0,5,-16,95,0,0,-20,6,19,23,-19,0,0,0,0,14,24,33,12,52,2,8,9,14,17,32,0,14,15,21,4,7,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bd7 5. Re1 g6 6. c3 Bg7 {6...a6 is the modern continuation.} 7. d4 a6 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} 8. Bf1 cxd4 9. cxd4 Bg4 {White is slightly better.} 10. d5 Nd4 11. Nbd2 Rc8 12. Bd3 (12. Nc4 {is more complex.} b5 13. Be3 Bxf3 14. gxf3 Nxf3+ 15. Qxf3 bxc4 16. Rac1) 12... Nxf3+ 13. Nxf3 Nf6 14. h3 Bxf3 15. Qxf3 {[#]} O-O $146 ({Predecessor:} 15... Nd7 16. Qe2 O-O 17. Bg5 Bf6 18. Bf4 Qb6 19. Rab1 Be5 20. Bh6 Bg7 21. Bg5 Bf6 {1-0 (56) Malakhov,V (2515)-Naumann,A (2365) Menorca 1996}) 16. Be3 Nd7 17. Qe2 Qa5 18. a3 Rc7 (18... Ne5 $15) 19. f4 Qa4 20. Rad1 Nc5 21. Bc2 Qb5 22. Qxb5 axb5 23. Bd4 e5 24. fxe5 Nd7 25. Bd3 b4 26. axb4 Bxe5 27. Be3 Bxb2 28. Bb5 (28. Rb1 $5 {[%cal Rb1b2]} Be5 29. Rec1 $11) 28... Ne5 {[#]} (28... Rfc8 $11) 29. Re2 ({White should try} 29. Rb1 $1 $16 {[%cal Rb1b2]} Rc2 30. Ba4) 29... Ba3 $1 $11 30. Bb6 Rcc8 31. Rb1 Bc1 32. Ra2 Bf4 33. Rf1 Bg5 34. Bd4 Be7 35. Ra7 Rb8 36. Rc1 Bf6 {[#] ...Nf3+! is the strong threat.} 37. Bb6 Bg5 38. Rc2 Bd8 39. Bd4 Bf6 {Strongly threatening ...Nf3+!} 40. Bb6 Bd8 {The position is equal.} 41. Be3 h5 42. Kh2 {Black should prevent Bh6.} Kg7 43. Bd4 Bf6 44. Bb6 Bd8 45. Bd4 Bf6 46. Bb6 {Accuracy: White = 74%, Black = 83%.} 1/2-1/2

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "8.4"]
[White "Wojtaszek, Radoslaw"]
[Black "Keymer, Vincent"]
[Result "1/2-1/2"]
[ECO "D45"]
[WhiteElo "2690"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "116"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,116,10,6,0,0,-4,2,-169,-163,-173,-152,-166,-60,-60,-61,-55,-33,-87,-73,-95,-25,-163,-43,-145,-96,-139,-148,-155,-140,-178,-177,-174,-183,-195,-187,-178,-180,-260,-235,-227,-217,-304,-290,-310,-227,-236,-234,-216,-231,-226,-189,-144,-54,-42,-39,-74,-81,-243,-258,-301,-230,-273,-110,-102,-108,-110,-84,-172,-186,-197,-175,-169,-31,-22,0,0,0,-124,-118,-424,-8,-56,0,-8,-9,-9,0,0,0,0,0,0,0,0,0,0,0,-31,0,0,0,-18,0]} 1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. Nc3 e6 5. Qc2 Bd6 6. d4 Nbd7 7. b3 O-O 8. Bb2 e5 9. Be2 {D45: Semi-Slav: 5 e3.} e4 10. Nd2 Nb8 {[#]} 11. g4 $146 (11. h3 $11) ({Predecessor:} 11. h3 Na6 12. a3 Be6 13. O-O Nd7 14. Ndxe4 dxe4 15. Qxe4 Nc7 16. Qc2 f5 17. Bd3 {½-½ (34) Krasenkow,M (2671)-Bok,B (2607) Wijk aan Zee 2018}) 11... Bxg4 $19 12. Bxg4 Nxg4 13. cxd5 cxd5 (13... Qh4 $19 14. Nf1 Bb4 15. dxc6 Nxc6) 14. Nxd5 $15 f5 $1 15. h3 Qh4 (15... Nxf2 16. Kxf2 Qh4+ 17. Ke2 $14) 16. Rf1 (16. Nc4 $15 Nxf2 17. Nxd6 (17. Qxf2 $2 Bg3 $19) 17... Nxh1+ 18. Kd2 Qf2+ 19. Kc3) 16... Nh2 $17 17. Rg1 {Threatens to win with Nc7.} Nc6 (17... Nd7 $17 18. Qc4 Rf7) 18. O-O-O (18. Qc4 $11 {and White stays safe.} Kh8 19. Qb5) 18... Qxf2 (18... b5 $19 19. Kb1 (19. Qxc6 $2 Rac8 $19) 19... Rac8) 19. Nc4 (19. Qc4 $15 Kh8 20. Kb1) 19... Qxc2+ 20. Kxc2 Rad8 21. Rg2 Nf3 22. a3 Bb8 23. Nc3 a6 24. Nd2 Nxd2 25. Rdxd2 Ne7 26. d5 (26. b4 $142) 26... Be5 27. d6 Nc6 (27... Bxd6 $2 28. Nxe4 $1 {[%mdl 512]} Bxa3 29. Bxa3 $18) 28. d7 (28. Rd1 $142) 28... Rf7 $19 29. Nd5 {If only White now had time for Nb6....} Bxb2 (29... Rfxd7 30. Bxe5 Rxd5 31. Rxd5 $15) 30. Kxb2 Ne5 31. Nb6 {[#]} Nd3+ $1 (31... Nxd7 32. Rd5 $11) 32. Ka2 Rf6 33. Rc2 (33. Nd5 Re6 $19) 33... g6 ({Stronger than} 33... Rxb6 {[#]} 34. Rc8 $1 $16 {[%mdl 512]}) (33... Rd6 $17 {aiming for ...Kf7.} 34. Rc7 f4 35. exf4 Nxf4) 34. Rc8 $15 Rff8 35. Rgc2 Kf7 36. Rxd8 $2 (36. h4 $17) 36... Rxd8 $17 {[%mdl 4096] Endgame KRN-KRN} 37. Rc7 Ke6 38. Kb1 Kd6 (38... g5 $19 {is more deadly.} 39. Kc2 h5) 39. Rc8 Ke7 40. Kc2 Ne5 41. Rc7 (41. Kd1 $17) 41... Nxd7 $19 42. Rxb7 Ke6 43. Nc4 g5 ({Black should try} 43... Ne5 $19 44. Rb6+ Kd5) 44. Ra7 $15 f4 45. Rxa6+ Ke7 46. Rh6 (46. Ra5 $11 {remains equal.}) 46... f3 $17 {Strongly threatening ...f2.} 47. Nd2 $2 {[%mdl 8192]} (47. Rxh7+ $17 {was the crucial defense.} Ke6 48. Nd2) 47... Nc5 $2 (47... Nf6 $19 48. a4 Kf7) 48. Nf1 Ne6 (48... Nd3 $15 49. Rxh7+ Ke6 50. Rh6+ Kf7) 49. Ng3 Rc8+ 50. Kd2 {Hoping for Nf5+.} Rd8+ 51. Kc2 Rc8+ 52. Kd2 {Nf5+ is the strong threat.} Rd8+ 53. Kc2 Rd3 54. Rxh7+ Kf8 55. Rh6 Kf7 56. Rh7+ ({But not} 56. Nxe4 $2 Rxe3 57. Nd6+ Kg8 $19) (56. Rf6+ $5 Ke7 57. Rxf3 Nd4+ 58. exd4 Rxf3 59. Nxe4 $11) 56... Kf8 {[%mdl 1024] Black has compensation.} (56... Ng7 $5 {[%cal Rf7g6]} 57. Nxe4 Rxe3 58. Nd6+ Kf6 59. Rh6+ Ke7 $11) 57. Rh6 Kf7 58. Rh7+ (58. Nxe4 Rxe3 59. Rf6+ Ke7 $19) 58... Kf8 {Accuracy: White = 52%, Black = 58%.} 1/2-1/2

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "9.1"]
[White "Wojtaszek, Radoslaw"]
[Black "Studer, Noel"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "2690"]
[BlackElo "2422"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,85,0,0,0,0,0,15,24,26,4,54,8,17,0,0,0,0,0,0,0,0,-5,0,-6,-5,-60,0,0,0,0,34,0,167,114,197,208,205,200,270,262,308,234,243,192,247,238,308,255,293,295,341,339,328,318,365,361,417,408,725,700,637,634,767,763,687,681,514,272]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d3 d5 5. cxd5 Nxd5 6. Bd2 Be7 7. g3 O-O 8. Bg2 Be6 9. O-O h6 10. a3 Qd7 11. b4 {[%cal Bb2b4,Bb4b5][%mdl 32] A29: English Opening: Four Knights Variation with 4 g3.} a6 {[%cal Ba7a6,Ba6a5][%mdl 32]} 12. Rc1 Nxc3 13. Bxc3 {[#] The position is equal.} Bf6 $146 ({Predecessor:} 13... f6 14. Re1 Rad8 15. Qc2 Bd5 16. Red1 Qe6 17. Qb2 e4 18. Ne1 exd3 19. Nxd3 Bxg2 20. Kxg2 {1-0 (50) Lehtinen,H (2338)-Sisatto,O (2227) Tampere 2002}) 14. Re1 a5 15. b5 Nd4 16. a4 Bb3 $36 {[%mdl 2048] White is under pressure.} 17. Qd2 {Threatens to win with Nxd4.} Bxa4 18. Nxd4 exd4 19. Bxa5 c6 20. bxc6 Bxc6 21. Bxc6 bxc6 22. Rc4 (22. Bb6 $11) 22... Rfe8 (22... Bg5 $1 $15 23. f4 Bf6) 23. Bb6 $11 h5 24. Qf4 {[%cal Rb6d4]} Ra2 25. Bxd4 Bd8 $2 {[#] Black is now going downhill.} (25... Rexe2 $11 {and Black has nothing to worry.} 26. Rxe2 Rxe2) 26. Qf3 (26. e3 $1 $18) 26... h4 (26... Ba5 $16 {was worth a try.} 27. Ra1 Rxa1+ 28. Bxa1 Qd5) 27. Qxc6 $18 Qxc6 28. Rxc6 h3 29. Rc8 Ra6 30. f3 f5 31. Kf2 Kf7 (31... f4 $142 32. Rb8 Rae6) 32. Rb8 Kg6 33. Rc1 Rae6 34. Rc2 f4 35. Rb7 fxg3+ 36. Kxg3 Bf6 37. Bxf6 gxf6 {[%mdl 4096] Endgame KRR-KRR} 38. e4 Re5 (38... f5 $142 39. Rcc7 Ra6 40. Rg7+ Kf6 41. Kxh3 Ra1 42. Rbf7+ Ke5 43. Rxf5+ Kd4 44. Rd5+ Ke3) 39. Rcc7 {[#] Intending Rg7+ and mate.White is clearly winning.} Rg5+ 40. Kf4 {Threatening mate with Rg7+.} Rg8 41. Rh7 Rh5 42. Rxh5 Kxh5 43. Rh7+ {Accuracy: White = 76%, Black = 42%.} 1-0

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "9.2"]
[White "Adams, Michael"]
[Black "Keymer, Vincent"]
[Result "1-0"]
[ECO "B10"]
[WhiteElo "2709"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "155"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,155,10,43,0,9,14,25,15,14,10,13,20,21,16,17,22,10,18,19,17,17,18,21,22,16,15,15,12,48,24,45,31,71,70,74,31,42,30,131,143,433,418,490,452,426,444,438,372,437,434,510,353,639,548,823,534,785,636,589,497,1916,497,497,490,483,483,439,397,4810,585,912,402,988,645,2204,1195,928,345,552,323,323,305,323,323,300,276,337,323,571,571,916,942,887,715,511,48,48,48,422,316,297,8,948,948,1145,1138,1098,1073,1058,1051,1051,1029,973,876,876,876,817,758,733,675,29953,29950,29956,29960,29964,500,29972,29973,29973,29970,29976,29968,29972,29972,29972,29973,29973,29974,29973,29975,29982,29983,29981,29977,29995,29996,29996,29992]} 1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. Ne5 Nf6 5. d4 a6 6. c4 {B10: Caro-Kann: 2 d3 and 2 c4.} g6 7. Nc3 Bg7 8. cxd5 {White has an edge.} O-O {[#]} 9. Bc4 $146 ({Predecessor:} 9. Qb3 Nbd7 10. Be2 Ne8 11. Bf4 Nd6 12. O-O Nf5 13. Rad1 Nxd4 14. Rxd4 Nxe5 15. Re4 Nd7 {1-0 (26) Gronde,I (2223)-Andre,W (2208) Germany 2009}) 9... b5 10. Bb3 Bb7 {[%cal Rf6d5]} 11. O-O Nxd5 12. Qf3 {[%cal Rb3d5]} e6 13. Nxd5 Bxd5 14. Bxd5 Qxd5 15. Qxd5 exd5 16. Be3 Bxe5 17. dxe5 Nc6 18. f4 Rfe8 19. Rfd1 f6 20. Rac1 Na5 21. b3 {Bb6 is the strong threat.} fxe5 22. Bb6 Nb7 23. Rc7 $36 {[%mdl 2048] White fights for an advantage.} Nd6 (23... Nd8 $1 $11) 24. Rxd5 $16 Re6 $2 {[%mdl 8192]} (24... Nf5 $16 {might work better.}) 25. Rc6 $18 exf4 26. Rcxd6 Re2 27. Rd2 Rae8 28. Rd8 Kf7 29. R8d7+ Kf6 30. Kf1 Re1+ (30... Rxd2 $142 31. Rxd2 Re6) 31. Kf2 Rh1 32. Kf3 g5 33. R2d6+ Kf5 34. Rd5+ Kg6 (34... Re5 $142 35. Rxe5+ Kxe5 36. Bd4+ Kf5 37. Rd5+ Kg6 38. Rd6+ Kf7 39. Rf6+ Ke8 40. Rxa6 Rxh2) 35. R7d6+ (35. Bd4 $142 Rhe1 36. Rg7+ Kh6 37. Rgxg5) 35... Kh5 {[#] ( -> ...Rf1+)} 36. g4+ fxg3 37. hxg3 Rf1+ 38. Kg2 Ree1 $2 (38... Rfe1 39. Bf2 R1e6) 39. Rd2 (39. Bf2 $142 {White wants to mate with Rd4.} Rxf2+ 40. Kxf2) 39... Ra1 40. Bd4 (40. Bf2 $142 {Threatening mate with R2d4.} Kg4 41. R6d4+ Kf5 42. g4+ Kf6 43. Rd7 Rxf2+ 44. Rxf2+ Ke5 45. Rxh7) 40... Rab1 (40... Rad1 $142 41. Be3 Rxd2+ 42. Bxd2 Ra1) 41. Re6 Kg4 42. Re4+ Kf5 43. Ree2 $2 (43. Rde2 Rbd1 44. Re7) 43... h5 (43... Rbe1 $142 44. Rf2+ Rxf2+ 45. Bxf2 Re5) 44. Rf2+ Rxf2+ 45. Kxf2 {[%mdl 4096] Endgame KRB-KR} ({Much less strong is} 45. Rxf2+ Kg4 $18) 45... h4 46. gxh4 gxh4 47. Kg2 Ke4 48. Bf6 a5 $2 (48... h3+ 49. Kxh3 Rh1+ 50. Kg4 Rg1+ 51. Kh5 Kf5 52. Rf2+ Ke4) 49. Bxh4 a4 50. bxa4 bxa4 51. Be7 Ke3 52. Rc2 $2 (52. Bg5+ $18 Ke4 53. Rf2) 52... Kd3 $14 53. Rf2 {And now Kf3 would win.} Rb7 $2 {[%mdl 8192]} (53... Re1 $1 $14) 54. Bc5 Rc7 {[#]} 55. Bb4 $2 (55. Rf3+ $1 $18 Ke4 56. Bf2) 55... Rb7 $2 {[%mdl 8192]} (55... Rc2 $11) 56. a3 $18 Kc4 57. Rf5 Rb5 58. Rf4+ Kb3 59. Kf3 Re5 60. Rd4 Re6 61. Rd3+ Kc4 62. Rc3+ Kb5 63. Rc5+ Kb6 64. Ra5 Rf6+ 65. Ke4 Rf7 66. Rxa4 Rd7 67. Ra8 (67. Ra5 $142 Rh7 68. Re5 Rh4+ 69. Kd3 Kc6 70. Be7 Rf4 71. Kc3 Ra4 72. Bb4) 67... Kb7 (67... Kb5 $18 68. Rb8+ Ka4) 68. Rh8 {White mates.} Kb6 69. Rh5 Rd1 70. Bc3 Rd7 71. Bd4+ Ka6 72. Kd3 Rc7 73. Bc5 Rd7+ 74. Kc4 Rg7 75. Rh6+ Kb7 76. Kb5 Rg1 77. Rh7+ Kc8 78. Kc6 {Accuracy: White = 53%, Black = 37%.} 1-0

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "9.3"]
[White "Naiditsch, Arkadji"]
[Black "Harikrishna, Pentala"]
[Result "1-0"]
[ECO "C68"]
[WhiteElo "2581"]
[BlackElo "2663"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,69,34,29,20,23,21,31,12,17,0,67,68,78,70,84,98,145,134,389,404,702,695,682,677,1091,518,525,520,520,517,525,518,504,477,797,783,656,739,745,637,940,892,2807,2730,2242,2121,29979,29980,29979,29980,29981,29979]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bg4 6. h3 Bxf3 7. Qxf3 Qd7 8. d3 h5 9. Nd2 O-O-O 10. Nc4 f6 11. a4 {C68: Ruy Lopez: Exchange Variation, sidelines.} g5 12. Qe3 {Qa7 is the strong threat.} Kb8 13. b4 {White is slightly better.} g4 14. h4 Bh6 {[#]} (14... Bxb4 $11 15. Rb1 Qe7) 15. Qe1 $146 ({Predecessor:} 15. Qg3 Bxc1 16. Rfxc1 Ne7 17. Re1 Qd4 18. Qe3 b6 19. g3 Rhf8 20. a5 b5 21. Qxd4 Rxd4 {0-1 (40) Nataf,I (2559)-Mamedyarov,S (2646) Warsaw 2005}) 15... Bxc1 16. Qxc1 Ne7 {[#]} 17. b5 $1 $36 {[%mdl 2560] White is in control.} cxb5 (17... axb5 18. axb5) 18. axb5 Qxb5 $2 {[%mdl 8192]} (18... Nc8 $16 {keeps fighting.}) 19. Qa3 $18 Nc8 (19... Qd7 $142 20. Rfb1 Qe6) 20. Rfb1 Qc6 {[#] intending ...Nb6.} 21. Na5 $1 {[%mdl 576] Double Attack} Qd6 22. Nxb7 (22. Rxb7+ $142 Ka8 23. Rb4) 22... Qxa3 23. Nxd8+ Nb6 24. Rxa3 Rxd8 25. Rxa6 {[%mdl 4096] Endgame KRR-KRN} Kb7 26. Ra5 Rg8 (26... Kc6 $142 27. g3 Rg8) 27. c4 Kc6 28. c5 Nc8 29. Rb8 Kd7 30. Raa8 c6 31. Rb7+ Kd8 32. Kf1 g3 33. f3 {White mates.} Rf8 34. Ke2 f5 35. exf5 {White took control after the opening. Accuracy: White = 90%, Black = 39%.} 1-0

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "9.4"]
[White "Anton Guijarro, David"]
[Black "Edouard, Romain"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2590"]
[BlackElo "2614"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,86,24,18,7,42,40,50,31,79,50,93,72,93,96,111,60,68,51,38,33,41,35,37,24,30,33,34,20,14,0,32,30,24,-4,0,-31,-31,-47,-37,-34,-42,-42,-2,-41,-31,-56,-56,-58,-56,-64,-35,-35,-15,-35,-15,-35,-15,-35,-35,-35,-30,-35,-12,-16,-16,-43,0,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3,-3]} 1. Nf3 d5 2. b3 c5 3. e3 Nf6 4. Bb2 g6 5. c4 Bg7 6. cxd5 {A06: Réti Opening: 1 Nf3 d5.} O-O (6... Qxd5 {looks sharper.} 7. Nc3 Qf5 8. Ne2 O-O 9. Ng3 Qd7) 7. Bxf6 Bxf6 8. Nc3 {[#] White is slightly better.} a6 $146 ({Predecessor:} 8... Qa5 9. Rc1 Bxc3 10. Rxc3 Qxa2 11. Rxc5 Na6 12. Qc2 Qxc2 13. Rxc2 Nb4 14. Rc5 b6 {1-0 (22) Mollison,J (1929)-Izod,C (1943) Newcastle 2019}) 9. Be2 Bg7 10. O-O b5 11. Rc1 Nd7 12. d4 ({White should play} 12. a4 $16) 12... Bb7 $1 $14 13. dxc5 Nxc5 14. Nxb5 axb5 15. Rxc5 Rxa2 16. Bxb5 Qb6 17. b4 Rb2 $1 {[%cal Rb2b4]} 18. Bc6 {[#] And now Rb5 would win.} Rxb4 19. Rc2 Ba6 20. Re1 Rd8 21. Nd4 Bc4 22. Qc1 Bd3 23. Rd2 Rb1 24. Rxd3 Rxc1 25. Rxc1 e6 26. dxe6 fxe6 {[%cal Rg7d4]} 27. Rdc3 Bxd4 28. exd4 Qxd4 {[#] ( -> ...Qd1+!)} 29. Bf3 h5 30. Re3 Kf7 31. h3 Kf6 32. Rce1 Rd6 33. Re4 Qb6 34. R4e3 Qb5 35. Re4 Qe8 36. Rf4+ Kg7 37. Rfe4 g5 38. Re5 {The position is equal.} Qg6 39. g3 h4 40. gxh4 gxh4+ 41. Bg4 Qf6 42. Rxe6 Rxe6 43. Rxe6 Qf4 {Accuracy: White = 82%, Black = 76%.} 1/2-1/2

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "10.1"]
[White "Studer, Noel"]
[Black "Wojtaszek, Radoslaw"]
[Result "0-1"]
[ECO "E15"]
[WhiteElo "2422"]
[BlackElo "2690"]
[Annotator "TA"]
[PlyCount "156"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,156,7,22,19,18,23,22,28,20,21,27,5,5,1,8,6,4,-8,0,0,0,0,0,0,0,0,0,0,29,0,4,0,0,6,21,35,13,4,6,-5,0,-15,0,-37,-37,-151,-143,-146,-36,-61,-4,-95,-77,-61,-60,-69,-81,-76,-70,-60,-75,-46,-50,-38,-8,-27,-7,-6,-7,-99,-110,-181,-177,-314,-312,-294,-281,-310,-311,-402,-292,-490,-488,-424,-60,-52,-55,-56,-26,-26,-27,-66,-31,-120,-123,-220,0,-181,-109,-301,-294,-342,-303,-396,-386,-387,-385,-530,-520,-469,-495,-477,-464,-466,-431,-509,-515,-491,-483,-648,-642,-767,-758,-29986,-728,-707,-689,-726,-692,-659,-546,-29976,-29978,-29978,-29979,-29979,-29980,-29980,-29981,-29985,-29986,-29986,-29987,-29988,-29989,-29993,-29980,-29987,-29988]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. Nbd2 Bb4 6. Qa4 {E15: Queen's Indian: 4 g3 sidelines, 4 g3 Ba6 and 4 g3 Bb7 early deviations.} Qe7 7. a3 Bxd2+ $1 8. Bxd2 {The position is equal.} Bb7 9. Bg2 O-O 10. O-O d6 11. Rac1 Nbd7 12. Rfd1 a5 {[#]} 13. Qc2 $146 ({Predecessor:} 13. Bg5 Rfc8 14. Ne1 Bxg2 15. Nxg2 c6 16. Ne3 h6 17. Bxf6 Qxf6 18. Qc2 a4 19. Qe4 {0-1 (44) Mueller,R (2346)-Dann,M (2493) Karlsruhe 2017}) 13... a4 14. Ne1 Bxg2 15. Nxg2 e5 16. Bc3 Rfe8 17. Ne3 exd4 18. Bxd4 Qe4 19. Qc3 (19. f3 $5 {[%cal Rf3e4]} Qxc2 20. Rxc2 $11) 19... Rac8 20. Rc2 h5 21. f3 Qe6 22. Ng2 Ne5 23. e4 Nfd7 24. Rf1 Nc5 25. Re1 f5 26. Nf4 Qf7 27. Bxc5 (27. Bxe5 $15 dxe5 28. Nd3) 27... bxc5 $17 28. Kg2 Nc6 (28... Rb8 $1 $17 {[%cal Rb8b3] White must now prevent ...Rb3.} 29. exf5 Qxf5) 29. Rf2 Nd4 (29... fxe4 $15 30. fxe4 Rb8) 30. Qa5 (30. Ne2 $11) 30... fxe4 31. fxe4 Qxc4 32. Nxh5 Re5 33. Nf4 Nb3 (33... Nc6 {keeps more tension.} 34. Qc3 Qxc3 35. bxc3 Rb8 36. Nd5 Rb7) 34. Qc3 Qxc3 $1 35. bxc3 Rce8 36. Rfe2 $1 Na5 37. Nd5 Nc4 $36 {[%mdl 2048] Black is pushing.} 38. Nxc7 Rb8 39. Rd1 (39. Ra1 $11 {keeps the balance.}) 39... Rb3 40. Nd5 (40. Kg1 $17 {was necessary.}) 40... Rxa3 $19 41. Rb1 (41. Kf3 $142) 41... Rb3 42. Ra1 a3 {[%cal Ba4a3,Ba3a2][%mdl 32]} 43. Kf3 Re8 44. h4 Rb2 45. Ree1 $2 (45. Nf4 {keeps fighting.}) 45... a2 46. Re2 Rxe2 $2 (46... Nd2+ $1 $19 47. Kg4 Rxe4+ 48. Rxe4 Nxe4) 47. Kxe2 {[%mdl 4096] Endgame KRN-KRN} Ra8 48. Kd3 Ne5+ 49. Kc2 Kf7 50. Ne3 Ke6 51. Kb2 (51. Kb3 $15) 51... Nd3+ $17 52. Kc2 (52. Kb3 $17) 52... Ne5 $2 (52... Nf2 $19 53. g4 Nxe4) 53. Ng2 $2 {[#]} (53. Kb2 $11 {and White is okay.}) 53... Nc4 ({Better is} 53... Ng4 $1 $19 54. Kb3 Nf2) 54. Kb3 $2 {This move loses the game for White.} (54. Nf4+ $17 {might work better.} Ke5 55. Kd3) 54... Nd2+ $19 55. Kc2 Nxe4 56. Nf4+ Kf5 57. Ne2 Kg4 58. Kb2 Nxg3 59. Nc1 Kxh4 60. Nxa2 g5 61. Rd1 Ra6 62. c4 Ne4 {And now ...Rxa2+! would win.} 63. Re1 Nd2 64. Rc1 g4 65. Rc2 Ne4 66. Re2 {[#]} Ng5 (66... Rxa2+ $142 $1 67. Kxa2 Nc3+ {[%mdl 64] Double Attack} 68. Ka3 Nxe2 69. Ka4 g3 70. Kb5 Nd4+ 71. Kb6 g2 72. Kc7 g1=Q 73. Kxd6 Qg5 74. Kc7 Qe7+ 75. Kb6 Qd6+ 76. Ka7 Qc6 77. Kb8 Ne6 78. Ka7 Nd8 79. Kb8 Qb7#) 67. Nc3 g3 68. Nd1 Ra8 69. Ne3 Kh3 70. Ng2 Rf8 {Black mates.} 71. Kc3 Rf2 72. Rxf2 gxf2 {KN-KN} 73. Ne3 Kg3 74. Kd3 Kf3 75. Nf1 Ne4 76. Nh2+ Kg2 77. Ng4 Ng3 78. Ne3+ Kf3 {Accuracy: White = 51%, Black = 76%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "10.2"]
[White "Keymer, Vincent"]
[Black "Adams, Michael"]
[Result "0-1"]
[ECO "A17"]
[WhiteElo "2476"]
[BlackElo "2709"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,78,1,9,12,37,25,28,31,29,35,28,39,64,-18,-8,-38,-35,-24,0,-19,0,0,0,0,20,18,20,16,16,10,22,0,15,11,14,-63,17,13,104,99,72,26,45,14,14,12,22,8,9,15,39,6,34,38,54,34,52,65,55,58,131,132,162,-327,-164,-449,-448,-866,-814,-29998,-29999]} 1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. Nc3 Bd6 5. b3 b6 6. Bb2 {A17: English Opening: 1...Nf6 with ...Bb4.} Bb7 7. cxd5 exd5 8. Nb5 {White has an edge.} Be7 9. Be5 Na6 10. Rc1 {[%cal Re5c7] [#]} c6 $146 ({Predecessor:} 10... c5 11. Be2 O-O 12. a3 Ne4 13. d4 Bf6 14. Bf4 g5 15. Be5 Bxe5 16. Nxe5 f6 {½-½ (62) Jusic,Z (2330)-Dizdar,G (2510) Zadar 1995}) 11. Nc3 ({Better is} 11. Nbd4 $14) 11... Nc5 12. d3 O-O 13. Be2 Re8 14. O-O Bf8 15. h3 a5 16. Bh2 Ne6 17. d4 Rc8 18. Bd3 g6 19. Re1 Bg7 20. Qd2 Re7 21. a3 c5 22. Be5 (22. Nb5 $11) 22... Rd7 (22... Ne4 $15 23. Qb2 f6) 23. Qb2 $11 Ne4 {[#]} (23... Re7 $11 {keeps the balance.}) 24. Bxg7 $1 $16 Nxg7 25. dxc5 Nxc5 26. Bb5 Rdc7 27. b4 axb4 28. axb4 Nce6 $1 {Strongly threatening ...Qf6.} 29. Ne2 $36 {[%mdl 2048] White has good play.} Nf5 30. Bd3 {Hoping for Rxc7.} Nd6 31. Rxc7 Rxc7 32. Ne5 Nc4 33. Bxc4 dxc4 34. Ng4 c3 (34... Kf8 $14) 35. Nxc3 {aiming for Rd1.} h5 36. Ne5 $4 {[%mdl 8192] [#]} (36. Rd1 $18 Qh4 37. g3 Qxh3 38. Nf6+ Kf8 39. e4) 36... Bxg2 (36... Qg5 $142 $1 {[%csl Gb7][%cal Rg5g2][%mdl 512]} 37. f4 Qg3) 37. f4 $2 (37. Nb5 Bxh3 38. f4) 37... Bb7 $19 38. Nb5 {[#]} (38. Nd1 $142 Be4 39. Nc3) 38... Qd5 $1 {[%mdl 512] ( -> ...Qh1+)} 39. Nxc7 Qh1+ {[%mdl 64] Double Attack. Accuracy: White = 58%, Black = 64%.} ({Weaker is} 39... Nxc7 40. Kh2 $16) 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "10.3"]
[White "Harikrishna, Pentala"]
[Black "Naiditsch, Arkadji"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "2663"]
[BlackElo "2581"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,80,7,2,0,-2,0,2,-17,-9,-33,-37,-43,-36,-49,-22,-58,-20,-33,-27,-33,-34,-22,-22,-37,-45,-29,-52,-29,60,45,52,62,65,31,58,62,41,0,0,0,18,0,0,-17,-22,-14,0,-343,-343,-343,-343,-343,-343,-343,-341,-343,-343,-343,-343,-498,-485,-665,-625,-618,-618,-618,-618,-618,-618,-618,-618,-5824,-5832]} 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. h3 d6 6. Bh2 {A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems.} b6 7. Nbd2 Bb7 8. c3 {The position is equal.} Nbd7 9. Bd3 {[#]} e5 $1 {[%mdl 512] [#] aiming for ...e4.} 10. Be2 $146 (10. dxe5 dxe5) ({Predecessor:} 10. dxe5 dxe5 11. Bc2 Qe7 12. O-O Rfd8 13. e4 Ne8 14. Nb3 a5 15. a4 Nd6 16. Re1 {0-1 (46) Arencibia Monduy,A (2148)-Demchenko,A (2641) Lichess.org INT 2020}) 10... e4 11. Ng1 Re8 12. h4 h5 13. Nh3 Nf8 14. Ng5 Ne6 15. Nxe6 Rxe6 16. g4 hxg4 17. Bxg4 Nxg4 18. Qxg4 Qf6 ({Black should try} 18... c5 $11) 19. Bf4 $14 Qf5 20. Qxf5 gxf5 21. h5 Bh6 22. Bxh6 Rxh6 23. O-O-O Kh7 24. Rdg1 Ba6 25. Rg5 Rf6 26. Rhg1 Be2 27. d5 Re8 {And now ...Bg4 would win.} 28. Nb3 $2 {[%mdl 8192]} (28. R5g2 $11 {and White stays safe.}) 28... Bg4 $1 $19 29. Kd2 Kh6 $1 {[%csl LRg5,LRh5][%mdl 64] [#] Double Attack} 30. R5xg4 fxg4 {[%mdl 4096] Endgame KRR-KRN} 31. Ke1 Kxh5 32. Rh1+ Kg5 33. Nd4 Rh6 34. Rg1 (34. Rxh6 {is the only way for White.} Kxh6 35. Nb5) 34... Reh8 {Black is clearly winning.} 35. f4+ exf3 36. Nxf3+ Kf5 37. Nd4+ Ke4 38. Rxg4+ Kd3 39. Nf3 Kxe3 40. Ng1 Rg6 {Accuracy: White = 71%, Black = 81%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "10.4"]
[White "Edouard, Romain"]
[Black "Anton Guijarro, David"]
[Result "0-1"]
[ECO "A27"]
[WhiteElo "2614"]
[BlackElo "2590"]
[Annotator "TA RC"]
[PlyCount "46"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,46,23,18,-11,-12,-52,8,-4,0,0,0,-20,0,-16,0,-5,-6,-27,0,-10,0,-5,0,-122,-126,-202,-204,-416,-388,-495,-495,-495,-487,-29990,-1546,-2053,-1966,-29997,-29998]} 1. c4 e5 2. Nc3 Nc6 3. Nf3 g6 4. d4 exd4 5. Nxd4 Bg7 6. Nf3 {A27: English Opening: Three Knights Variation.} d6 7. h3 {[#]} Nge7 $146 (7... Bxc3+ $15 8. bxc3 Qe7) ({Predecessor:} 7... Nf6 8. Bg5 O-O 9. e3 Be6 10. Bd3 Ne5 11. O-O Nxc4 12. Qe2 Ne5 13. Nxe5 dxe5 {½-½ (51) Nordquelle,P (1599)-Davidsson,J Reykjavik 2015}) 8. e4 {The position is equal.} O-O 9. Be2 f5 10. exf5 Nxf5 11. O-O Nfd4 12. Nxd4 Nxd4 13. Bg4 c6 14. Bxc8 Rxc8 15. Be3 Nf5 $36 {[%mdl 2048] Black fights for an advantage.} 16. Bxa7 (16. Qd3 $11) 16... b6 $1 $17 {Strongly threatening ...Ra8.} 17. Na4 {[#]} (17. Qb3 $17 Nd4 18. Qxb6) 17... Bd4 $1 $19 {[%mdl 1024] Black has strong compensation.} 18. Qb3 $2 {[#]} (18. a3) 18... Qg5 $1 {White must now prevent ...Nh4.} 19. Qd1 h5 {Hoping for ...Nh4.} ({Weaker is} 19... Nh4 20. Qg4 $17) 20. Kh1 {[#]} Nh4 $1 {[%csl Gh4][%cal Rg5g2][%mdl 512]} 21. g3 (21. Rg1 $19 Bxf2 22. Bxb6 Bxg1 23. Qxg1) 21... Bxf2 (21... Qf5 $142 22. gxh4 Qxh3+ {[%mdl 64] Double Attack} 23. Kg1 Rf4 24. Qxd4 Rxd4 25. f4 Rd2 26. Rf2 Qg3+ {[%mdl 64] Double Attack} 27. Kh1 Rxf2 28. Nxb6 Qh2#) 22. gxh4 Qg3 {[%cal Rg3h3]} 23. Rxf2 Rxf2 {Accuracy: White = 36%, Black = 79%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "11.1"]
[White "Studer, Noel"]
[Black "Edouard, Romain"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "2422"]
[BlackElo "2614"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,80,23,35,27,55,41,72,72,65,64,73,73,74,79,66,76,77,73,82,63,83,75,64,24,19,13,23,0,0,0,0,0,18,13,27,2,24,36,27,-99,0,-181,-194,-185,-144,-151,-151,-143,-125,-134,-142,-159,-160,-200,-214,-179,-199,-500,-329,-370,-362,-360,-353,-676,-304,-767,-768,-5385,-2347,-1875,-1185,-5137,-5126]} 1. d4 e6 2. c4 Bb4+ 3. Nd2 b6 4. a3 Bxd2+ 5. Qxd2 Bb7 6. f3 {A40: Unusual replies to 1 d4.} f5 7. e3 Nf6 8. Bd3 {White is better.} O-O 9. Ne2 a5 10. b3 {[%cal Bb2b3,Bb3b4][%mdl 32]} d6 11. Bb2 Nbd7 12. O-O Qe7 13. b4 {[#]} Nh5 $146 ({Predecessor:} 13... axb4 14. axb4 Nh5 15. e4 fxe4 16. fxe4 e5 17. d5 Rxa1 18. Rxa1 Ndf6 19. Qg5 Bc8 {1-0 (42) Zhukova,N (2499)-Vasilevich,I (2324) Moscow 2010}) 14. Nf4 Nhf6 15. Bc2 e5 16. Ne2 e4 17. d5 exf3 18. Rxf3 Ne5 19. Bxe5 $1 Qxe5 20. Raf1 Ng4 {[%csl Gg4][%cal Re5h2]} 21. Ng3 $1 {[%cal Rc2f5]} axb4 22. axb4 {[%cal Rc2f5]} g6 23. h3 Nf6 24. Rf4 (24. Nxf5 $11 gxf5 25. Rxf5) 24... Ra2 ({Black should play} 24... Ra1 $17 25. Rxa1 Qxa1+ 26. Kh2 b5 $1 {[%mdl 512]}) 25. R1f2 $2 {[#]} (25. e4 $11) 25... b5 $1 $19 {[%mdl 512]} 26. Qd4 (26. cxb5 Bxd5) 26... Qxd4 27. Rxd4 bxc4 28. Rxc4 Nxd5 {Hoping for ...Ra1+.} 29. Bb3 Ra1+ 30. Kh2 {Rxc7 is the strong threat.} Kg7 31. e4 fxe4 32. Rxf8 Kxf8 33. Nxe4 $2 (33. Rxe4 Rb1 34. Bxd5 Bxd5 35. Rd4) 33... Rb1 34. Nd2 Rb2 35. Rd4 Ne3 36. Rf4+ $2 (36. Kg1 Nxg2 37. Kf2) 36... Ke7 (36... Ke8 $142 37. Rf2 {[#]} Rxd2 $1 {[%mdl 576] Remove Defender, Deflection, Decoy} 38. Rxd2 Nf1+ {[%mdl 64] Double Attack} 39. Kg1 Nxd2) 37. Rf2 $2 {[#]} (37. Rf7+ Kd8 38. Rf8+ Kd7 39. Rf7+ Kd8 40. Rf8+ Kd7 41. Rf7+ Kc6 42. Nc4 Nxc4 43. Bxc4) 37... Rxd2 $1 {[%mdl 512] Black is clearly winning.} 38. Rf7+ (38. Rxd2 Nf1+) 38... Kd8 39. Rf8+ Kd7 40. Rf7+ Ke8 {Accuracy: White = 59%, Black = 69%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "11.2"]
[White "Harikrishna, Pentala"]
[Black "Anton Guijarro, David"]
[Result "0-1"]
[ECO "A80"]
[WhiteElo "2663"]
[BlackElo "2590"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,101,20,27,33,36,36,29,16,6,0,17,0,0,-6,13,0,54,52,64,37,47,37,41,45,115,104,104,97,93,7,8,0,6,-37,-30,-36,0,0,0,0,0,0,56,-29,-25,-26,-29,-44,-58,-285,-265,-311,-319,-355,-366,-333,-359,-385,-356,-356,-367,-654,-656,-611,-602,-582,-553,-734,-684,-636,-401,-793,-757,-750,-737,-742,-744,-743,-737,-29981,-29982,-29981,-29982,-29987,-29980,-29983,-29984,-29984,-29982,-29986,-29987,-29987,-29988,-29988]} 1. d4 f5 2. Bg5 g6 3. e3 Bg7 4. Nd2 d6 5. Bc4 h6 6. Bh4 {A80: Dutch Defence: Unusual White second moves.} Nf6 {[#]} 7. Bxf6 $146 ({Predecessor:} 7. c3 e6 8. Ne2 Qe7 9. Nf4 Qf7 10. Bxf6 Qxf6 11. Qb3 d5 12. Be2 Nd7 13. Nd3 {0-1 (49) Van Ketel,R (2287)-Nikolic,P (2623) Leiden 2009}) 7... Bxf6 8. Ne2 {Threatens to win with Nf4.White has an edge.} e5 9. dxe5 dxe5 10. e4 f4 11. g3 Nc6 12. gxf4 Qe7 (12... Bg4 $11) 13. f5 $1 $14 gxf5 14. Ng3 h5 $1 15. c3 Bg5 16. Nf3 f4 ({Black should play} 16... fxe4 $14 17. Nxg5 (17. Nxe4 Bf4 $11) 17... Qxg5) 17. Nf5 $16 Bxf5 18. exf5 Bf6 19. Qd5 (19. Be6 $16) 19... e4 $132 {[%mdl 2048] Hoping for ...Rd8. Black is not holding back} 20. Nd2 e3 21. Ne4 {Strongly threatening Rg1.} Rd8 22. Qe6 $1 Qxe6 23. Bxe6 Bh4 24. Ke2 $1 Bxf2 {aiming for ...Ne5.} 25. Rad1 Ke7 ({Black should try} 25... Ne5 $11 26. Nf6+ (26. Nxf2 exf2 27. Rxd8+ Kxd8 $11) 26... Ke7 27. Nd5+ Rxd5 $1 {[%mdl 512]} 28. Bxd5 Kf6) 26. Nxf2 (26. Bb3 $1 $14) 26... exf2 27. Kxf2 Ne5 28. Rd4 c5 29. Rxd8 $2 {Now White is beyond hope.} (29. Rdd1 $1 $15) 29... Rxd8 $15 {[%mdl 4096] Endgame KRB-KRN} 30. Ke2 Kf6 31. Rg1 f3+ 32. Ke3 Rd3+ 33. Ke4 {intending Rg6+.} f2 34. Rf1 {[#]} Rd2 $1 35. b4 $2 (35. Ke3 Rxb2 36. h3) 35... cxb4 $19 36. cxb4 Ng4 37. Bc4 Nxh2 38. Rh1 Rc2 39. Bd3 Rb2 40. Kd4 (40. a3 $142) 40... Rxb4+ 41. Kc3 Rh4 {...Rh3 is the strong threat.} 42. Kc2 Kg5 43. a4 Ng4 44. Rxh4 Kxh4 {KB-KN. Black mates.} 45. Kd2 Kg3 46. Be2 Nf6 47. Ke3 h4 48. Bf1 b6 49. Kd4 h3 50. Ke5 Ng4+ 51. Kd4 {Accuracy: White = 59%, Black = 80%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "11.3"]
[White "Keymer, Vincent"]
[Black "Naiditsch, Arkadji"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "2476"]
[BlackElo "2581"]
[Annotator "RC"]
[PlyCount "71"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "180+2"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 3. Nf3 {[%emt 0:00:01]} Bb4+ {[%emt 0:00:00]} 4. Nbd2 {[%emt 0:00:01]} c5 {[%emt 0:00:01]} 5. a3 {[%emt 0:00:07]} Bxd2+ {[%emt 0:00:02]} 6. Bxd2 {[%emt 0:00:02]} cxd4 {[%emt 0:00:02]} 7. Nxd4 {[%emt 0:00:04]} d5 {[%emt 0:00:00]} 8. e3 {[%emt 0:00:07]} O-O {[%emt 0:00:03]} 9. Qc2 {[%emt 0:00:31]} e5 {[%emt 0:00:08]} 10. Nf3 {[%emt 0:00:03]} e4 {[%emt 0:00:26]} 11. Nd4 {[%emt 0:00:05]} Nbd7 {[%emt 0:00:03]} 12. h3 {[%emt 0:00:11]} Ne5 {[%emt 0:00:03]} 13. c5 {[%emt 0:00:05]} Bd7 {[%emt 0:00:13]} 14. b4 {[%emt 0:00:04]} a5 {[%emt 0:00:15]} 15. Bc3 {[%emt 0:00:44]} axb4 {[%emt 0:00:37]} 16. axb4 {[%emt 0:00:01]} Rxa1+ {[%emt 0:00:02]} 17. Bxa1 {[%emt 0:00:01]} Qa8 {[%emt 0:00:01]} 18. Qb2 {[%emt 0:00:10]} Qa4 {[%emt 0:00:33]} 19. Be2 {[%emt 0:00:03]} Nd3+ {[%emt 0:00:03]} 20. Bxd3 {[%emt 0:00:02]} exd3 {[%emt 0:00:02]} 21. O-O {[%emt 0:00:14]} Ra8 {[%emt 0:00:02]} 22. b5 {[%emt 0:00:21]} Qa2 {[%emt 0:00:13]} 23. c6 {[%emt 0:00:21]} Qxb2 {[%emt 0:00:11]} 24. Bxb2 {[%emt 0:00:01]} bxc6 {[%emt 0:00:02]} 25. bxc6 {[%emt 0:00:00]} Bc8 {[%emt 0:00:02]} 26. Rd1 {[%emt 0:00:06]} Ra2 {[%emt 0:00:01]} 27. Bc3 {[%emt 0:00:09]} Ba6 {[%emt 0:00:01]} 28. c7 {[%emt 0:00:09]} Ne8 {[%emt 0:00:12]} 29. Rb1 {[%emt 0:00:02]} Nd6 {[%emt 0:00:22]} 30. Rb8+ {[%emt 0:00:03]} Nc8 {[%emt 0:00:01]} 31. Nf5 {[%emt 0:00:06]} Kf8 {[%emt 0:00:02]} 32. Nd6 {[%emt 0:00:01]} Ke7 {[%emt 0:00:07]} 33. Nxc8+ {[%emt 0:00:02]} Bxc8 {[%emt 0:00:01]} 34. Rxc8 {[%emt 0:00:01]} Kd7 {[%emt 0:00:01]} 35. Rd8+ {[%emt 0:00:02]} Kxc7 {[%emt 0:00:02]} 36. Rxd5 {[%emt 0:00:01]} 1-0

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "11.4"]
[White "Wojtaszek, Radoslaw"]
[Black "Adams, Michael"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2690"]
[BlackElo "2709"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,84,30,21,25,28,29,29,25,31,18,31,31,34,30,35,32,26,27,30,35,35,18,24,4,12,-10,13,14,65,38,46,46,42,44,68,69,58,65,60,67,47,64,65,54,68,0,0,0,0,0,0,0,0,0,0,0,-4,-1,-3,-21,0,-11,-11,-11,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 a6 5. cxd5 exd5 6. Bg5 {D37: Queen's Gambit Declined: 5 Bf4.} Be6 7. e3 Nbd7 8. Bd3 {White has an edge.} Bd6 9. h3 c6 10. Bf4 Qc7 11. Qd2 O-O 12. O-O Rfe8 13. Bxd6 Qxd6 14. a3 h6 15. b4 b5 {[#]} 16. Ne2 $146 ({Predecessor:} 16. Rfc1 Nb6 17. Ne2 Nc4 18. Qc3 Ne4 19. Bxe4 dxe4 20. Ne5 a5 21. Nf4 axb4 22. axb4 {1-0 (42) Webb,L (2311)-De Verdier,M (2277) Daventry 2019}) 16... Nb6 17. Nf4 Nfd7 18. Qc3 Rec8 (18... Nc4 $11) 19. Rfe1 Nc4 20. Nxe6 Qxe6 21. e4 dxe4 22. Rxe4 Qd5 23. Rae1 a5 24. bxa5 Nf6 25. Re7 {Threatens to win with Ne5.} Nxa5 26. Ne5 $1 Rf8 27. Ng4 (27. Rc7 $14) 27... Nxg4 $11 {The position is equal.} 28. hxg4 Nc4 29. Bxc4 Qxc4 30. Qxc4 bxc4 {[%mdl 4096] Endgame KRR-KRR} 31. Rc1 Ra4 32. Rc3 Rd8 33. Re4 Kf8 34. f3 Rb8 35. Kf2 Rb3 36. Rce3 {[%csl Ge3][%cal Re4e8] [#]} Ra8 (36... g5 {with more complications.} 37. Re8+ Kg7 38. Rc8 Raxa3 39. Re2 Ra6) 37. Re5 Rbxa3 38. Rxa3 Rxa3 39. Rc5 {[%mdl 64] [#] Double Attack} Ra2+ 40. Kg3 Rd2 41. Rxc4 Ke7 42. Rxc6 Rxd4 {Accuracy: White = 94%, Black = 97%.} 1/2-1/2

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "12.1"]
[White "Edouard, Romain"]
[Black "Studer, Noel"]
[Result "0-1"]
[ECO "A29"]
[WhiteElo "2614"]
[BlackElo "2422"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,65,7,13,13,12,0,14,12,29,16,27,14,7,0,0,-4,-4,-4,0,-22,0,0,0,-14,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,102,0]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Bc5 7. O-O O-O 8. d3 h6 {8...Re8 is the modern continuation. Played by Ian Nepomniachtchi in May 2020.} 9. Nxd5 {A29: English Opening: Four Knights Variation with 4 g3.} Qxd5 10. Bd2 Re8 11. Bc3 {[#] The position is equal.} Qd8 $146 ({Predecessor:} 11... Qd6 12. Nd2 Bd4 13. Qb3 Rb8 14. a3 Be6 15. Qc2 Bd5 16. Ne4 Bxe4 17. Bxe4 Ne7 {1-0 (51) Zornow,T-Samjeske,T Germany 1995}) 12. Nxe5 Nd4 13. Bxd4 Bxd4 14. Nc4 Bg4 15. Ne3 Bxe3 16. fxe3 Rxe3 {White must now prevent ...Qd4.} 17. Qb3 (17. Qa4 $5 {[%cal Ra4g4]} Qg5 18. Bxb7 $11) 17... Qe7 18. Qxb7 Re8 19. Rac1 Rxe2 20. Rxc7 Qe3+ 21. Kh1 Be6 22. Rcxf7 Bxf7 23. Qxf7+ Kh8 24. Be4 Rxe4 25. Qf8+ Kh7 26. Qf5+ Kh8 27. Qf8+ Kh7 28. Qf5+ Kh8 29. dxe4 $40 {[%mdl 128] Black needs to defend precisely.} Qd2 30. Qf8+ Kh7 31. Qf5+ Kh8 32. Qh3 {[#] Intending Rf8+ and mate.} Qb4 (32... Kh7 $11 {keeps the balance.}) 33. Qe6 {[%mdl 32768] Accuracy: White = 95%, Black = 92%. . Loss on time!?} (33. Qc8+ $16 Kh7 34. Qf5+ Kg8 35. Qf7+ Kh7 36. Qf5+ Kg8 37. Qe6+ Kh7 38. Qf5+) 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "12.2"]
[White "Anton Guijarro, David"]
[Black "Harikrishna, Pentala"]
[Result "0-1"]
[ECO "A12"]
[WhiteElo "2590"]
[BlackElo "2663"]
[Annotator "TA"]
[PlyCount "156"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,156,30,33,29,33,22,33,28,29,31,31,33,35,35,45,23,23,20,26,25,36,30,48,29,55,11,18,20,14,29,16,0,19,0,0,0,24,10,24,0,0,0,24,16,9,0,0,0,0,-10,-11,-49,0,-2,0,-66,-68,-156,-133,-141,-122,-277,-283,-282,-257,-415,-402,-400,-400,-472,-424,-643,-656,-726,-504,-463,-470,-524,-392,-376,-382,-443,-442,-387,-438,-434,-421,-493,-470,-475,-462,-547,-447,-428,-420,-515,0,-358,-314,-828,-852,-938,-949,-838,-837,-825,-792,-679,-570,-1541,-1468,-2148,-2089,-2011,-1810,-2483,-2317,-29941,-12850,-12726,-1621,-1405,-1321,-1295,-1213,-1082,-1082,-1069,-871,-29978,-29978,-29977,-29978,-29979,-29980,-29980,-29981,-29982,-29983,-29983,-29984,-29984,-29985,-29985,-29986]} 1. Nf3 d5 2. b3 Nf6 3. Bb2 g6 4. c4 c6 5. e3 Bg7 6. Be2 O-O 7. O-O Bg4 8. d3 {A12: English Opening: 1...c6 with b3 by White.} Re8 9. Nbd2 {[#]} a5 $146 ({Predecessor:} 9... Nbd7 10. h3 Bxf3 11. Nxf3 e5 12. cxd5 Nxd5 13. Qc2 a5 14. a3 Qe7 15. Nd2 Nc5 {0-1 (54) Svenn,G (2322)-Rosberg,S (2299) Sweden 2018}) 10. h3 {White is slightly better.} Bxf3 11. Nxf3 e6 12. Qc2 Nbd7 13. Rfd1 Qe7 14. Rac1 a4 15. Bc3 axb3 16. axb3 Ra7 17. Ra1 Rea8 18. Rxa7 Rxa7 19. b4 Ne8 20. Bxg7 Kxg7 21. c5 Nef6 22. d4 Qd8 23. b5 Qa8 24. Rb1 Ra3 25. Bd3 Qa5 26. Rb3 Ra1+ 27. Rb1 Ra4 28. bxc6 bxc6 29. Qd2 Qxd2 30. Nxd2 e5 31. Nb3 exd4 32. exd4 Nf8 33. Ra1 $1 {[%cal Ra1a4]} Rb4 34. Bc2 (34. Na5 $1 $11) 34... Ne6 $15 35. Rd1 {White is now going downhill.} ({White should play} 35. Ra6 $15) 35... h5 36. g3 Ne8 37. Rd2 $2 {[#]} (37. Ra1 $17 {might work better.}) 37... N8c7 $1 $19 38. Bd1 Nb5 39. Na5 $2 (39. Kf1 {was called for.}) 39... Nbxd4 40. Kg2 Rb5 41. Ra2 Nxc5 42. h4 (42. Rd2 $142) 42... Ne4 43. Ra4 Nc3 44. Rxd4 Rxa5 {[%mdl 4096] Endgame KRB-KRN} 45. Bf3 Kf6 46. Rd3 Rc5 47. g4 hxg4 48. Bxg4 Ne4 49. Bf3 Nd6 50. h5 gxh5 51. Bxh5 Rc2 52. Rf3+ Ke7 53. Re3+ Kd7 54. Rf3 Ke7 55. Re3+ $1 Kf8 56. Bf3 $2 {[#]} (56. Ra3) 56... Nf5 57. Ra3 Nh4+ 58. Kg3 Nxf3 59. Kxf3 {KR-KR} Ke7 60. Ke3 Rc4 61. f3 f5 62. Ra8 f4+ 63. Kd3 Kd6 64. Rd8+ Kc5 65. Rf8 Ra4 66. Rf6 Kb5 (66... Ra3+ $142 67. Ke2 d4 68. Rxf4 Kc4) 67. Rf5 Rc4 68. Re5 Rb4 69. Rf5 Ra4 70. Rg5 Ra3+ 71. Ke2 Kc4 {Black mates.} 72. Rf5 Ra2+ 73. Kf1 d4 74. Rxf4 c5 75. Rf8 d3 76. Rd8 Kc3 77. f4 Ra1+ 78. Kf2 d2 {Accuracy: White = 57%, Black = 89%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "12.3"]
[White "Naiditsch, Arkadji"]
[Black "Keymer, Vincent"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2581"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,55,13,14,0,-10,-23,-7,0,-31,252,247,249,239,371,279,295,196,189,196,195,185,291,270,270,275,290,81,81,0,4,0,249,234,227,225,291,253,512,504,500,493,509,502,493,483]} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 Be6 7. Be2 Qa5 $1 {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.} ({Much weaker is} 7... dxc4 $6 8. Bxf6 exf6 9. d5 $16) 8. Bf3 {Black must now prevent Bxf6.} dxc4 9. d5 {[%mdl 64] Double Attack} O-O-O {[%cal Rf6d5] The position is equal.} 10. Bd2 Nb4 $2 {[%mdl 8192]} (10... Nxd5 $15 {keeps the upper hand.} 11. Nxd5 Rxd5) 11. dxe6 $18 Nd3+ 12. Kf1 g5 (12... fxe6 {might work better.} 13. b3 e5 14. bxc4 e6) 13. Qe2 Qf5 {[#] If only Black now had time for ...g4....} 14. exf7 $146 ({Predecessor:} 14. g4 Qxe6 15. Qxe6+ fxe6 16. Bxg5 Bg7 17. Bxf6 Bxf6 18. Nge2 Rhf8 19. Kg2 Rf7 20. Rhf1 {1-0 (63) Karaahmetoglu,E (1969)-Agdelen,H (2354) Antalya 2017}) 14... g4 15. Be4 $1 {[%cal Re4f5]} Nxe4 16. Nxe4 {And now Bc3 would win.} Bg7 (16... Rd4 $142 17. f3 gxf3 18. gxf3 e5) 17. Bc3 Bxc3 18. bxc3 h5 {[#]} 19. Qe3 $2 (19. h3 $1 $18 {and the rest is easy.}) 19... Rhf8 $16 20. Ne2 (20. Ng5 $16 {h4 is the strong threat.} Nxf2 21. Qe6+ (21. Qxf2 Qxg5 22. Ne2 Qd5 $15) 21... Qxe6 22. Nxe6 Rxf7 23. Nxd8 Kxd8 24. Ne2) 20... Rxf7 $11 21. Nd4 Qf4 $2 {[#]} (21... Qd5 $11 {and Black stays safe.}) 22. Qxf4 $1 $18 Rxf4 23. f3 gxf3 24. gxf3 e5 $2 (24... Ne5 25. Ng5 Rg8) 25. Ne6 $1 {[%csl LRd8,LRf4][%mdl 64] Double Attack. White is clearly winning.} Rxf3+ 26. Ke2 Rf4 27. Nxf4 Nxf4+ 28. Kf2 {Accuracy: White = 56%, Black = 51%.} 1-0

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "12.4"]
[White "Adams, Michael"]
[Black "Wojtaszek, Radoslaw"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2709"]
[BlackElo "2690"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,50,0,9,1,2,0,-1,0,33,0,18,8,32,15,33,-24,0,0,0,0,0,0,0,0,0,-95,-102,-122,-121,-317,-130,-124,-111,-168,-163,-29998,-29999]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a4 e5 7. Nf3 Be7 8. Bc4 O-O 9. O-O {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} Be6 10. Qe2 Qc7 11. Bb3 {The position is equal.} Nbd7 $5 {[%mdl 4] Leaves trodden paths.} 12. Rd1 Rfc8 13. Bg5 h6 14. Bxf6 Nxf6 {[#]} 15. Rd3 $146 ({White should play} 15. Nh4 $14) ({Predecessor:} 15. Nh4 Qd7 16. g3 Rc5 17. Rd3 Rac8 18. Ng2 Bd8 19. Rad1 Ba5 20. Rxd6 Qe7 21. Nh4 Bxc3 22. Rxe6 fxe6 {½-½ (39) Ponomariov,R (2764)-Bruzon Batista,L (2673) Khanty-Mansiysk 2011}) 15... Qc5 16. a5 Bd8 17. Nd2 Bg4 ({Don't go for} 17... Bxa5 $2 18. Bxe6 fxe6 19. Nb3 $18) 18. Qf1 Bxa5 19. Nd5 {[#] Threatens to win with Nxf6+.} Bd8 20. Nc4 (20. Nxf6+ $11 Bxf6 21. Nc4) 20... Nxe4 $17 21. Re1 Bf5 22. Qe2 $2 {[#]} (22. Red1 $17) 22... b5 (22... Nxf2 $1 $19 {[%mdl 512] has better winning chances.} 23. Qxf2 Bxd3 24. Nxd6 Qxd6 25. cxd3 Ba5) 23. Nce3 Bg6 24. Qg4 (24. c3 $17 {keeps fighting.}) 24... Kh7 $19 25. Nf5 $2 (25. Qe2 $19) 25... Qxf2+ {[%mdl 64] Double Attack. Accuracy: White = 49%, Black = 77%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "13.1"]
[White "Adams, Michael"]
[Black "Studer, Noel"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "2709"]
[BlackElo "2422"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,74,20,24,14,24,7,20,18,20,16,12,12,39,36,33,24,26,20,20,-27,36,30,81,17,16,24,25,19,18,18,19,0,10,0,0,0,0,7,8,0,0,0,0,0,6,0,2,0,0,-6,0,-13,-9,-17,-9,-223,-222,-202,0,0,0,-29995,-29996]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Be3 O-O 8. Qd2 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves.} Nd7 9. O-O-O Nf6 {The modern move.} 10. Bd3 {The position is equal.} c5 11. Rhe1 Be6 12. Kb1 Qa5 13. c4 Qxd2 14. Bxd2 {Strongly threatening Ng5.} h6 15. h3 Rfe8 16. Nh4 {[#]} Bf8 $146 ({Black should play} 16... Ng4 $11 17. hxg4 Bxh4) ({Predecessor:} 16... Ng4 17. hxg4 Bxh4 18. g3 Bf6 19. Be2 Bd4 20. Rf1 Bd5 21. Be3 Bg2 22. Rg1 Bc6 23. Bxd4 cxd4 {½-½ (53) Sanal,V (2490)-Bindrich,F (2606) St Petersburg 2018}) 17. Bc3 $14 Nd7 (17... d5 $11 {keeps the balance.}) 18. Bf5 (18. b3 $16) 18... Nb6 $11 19. Bxe6 fxe6 20. b3 d5 21. cxd5 exd5 22. Bb2 d4 23. c3 Rxe1 24. Rxe1 dxc3 25. Bxc3 Nd5 26. Bb2 Nf4 27. Bc1 Nd3 28. Re2 b5 29. Nf5 Rd8 30. Be3 a5 31. g4 c4 32. bxc4 bxc4 33. Kc2 Bb4 {Threatening ...Ne1+.} 34. h4 $2 {[#]} (34. Bd2 $11) 34... Ne1+ $1 $19 35. Kb2 Rd1 $2 ({Better is} 35... Rd3 $19 {( -> ...Ba3+)} 36. a3 Rb3+ 37. Ka1 Rxa3+ 38. Kb1 Rb3+ 39. Rb2 Rd3) 36. a3 $1 $11 {[%cal Ra3b4]} Nd3+ 37. Ka2 $2 {[%mdl 8192]} (37. Kc2 $11 Ra1 38. axb4 Ra2+ 39. Kd1 Ra1+ 40. Kd2 Ra2+ 41. Kd1 Ra1+ 42. Kd2 Ra2+ 43. Kd1) 37... Bc3 {Accuracy: White = 80%, Black = 84%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "13.2"]
[White "Naiditsch, Arkadji"]
[Black "Wojtaszek, Radoslaw"]
[Result "0-1"]
[ECO "B53"]
[WhiteElo "2581"]
[BlackElo "2690"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,60,0,2,-20,-17,-27,0,0,0,-21,-15,-25,-18,-12,-5,-14,-17,-14,0,-1,-11,-64,-72,-86,-79,-125,-127,-150,-151,-295,-302,-585,-166,-272,0,-250,0,-264,-273,-566,-326,-644,-638]} 1. e4 c5 2. Nf3 d6 3. Nc3 Nf6 4. d4 cxd4 5. Qxd4 Nc6 6. Bb5 Bd7 7. Bxc6 Bxc6 8. Bg5 e6 9. O-O-O Be7 10. Qd3 Qa5 11. Bd2 {B53: Sicilian: 2...d6: Lines with Qxd4.} (11. h4 {seems wilder.} h6 12. Bxf6 Bxf6 13. Nd4 Qb6 14. g4) 11... d5 12. exd5 {[#]} Bxd5 $146 ({Predecessor:} 12... Nxd5 13. Kb1 Rd8 14. Nd4 Qb6 15. Nxc6 bxc6 16. Nxd5 Rxd5 17. Qg3 Bf6 18. Bc3 Bxc3 19. Qxc3 O-O 20. Qe3 Qc7 {½-½ (20) Trofimov,V (2400)-Nizky,R (2425) ICCF email 2014}) 13. Nxd5 {The position is equal.} Qxd5 14. Qxd5 (14. Bc3 {is more complex.} Qxd3 15. Rxd3 Bc5 16. Bd4 Bxd4 17. Rxd4 Ke7 18. Rhd1) 14... Nxd5 15. Nd4 Rc8 16. Nb5 a6 17. Nc3 Nb6 18. Bf4 f6 19. Rhe1 Rc6 20. a4 (20. Ne2 $11 e5 21. Bg3) 20... Bb4 $15 21. Re3 Bxc3 22. bxc3 Nxa4 23. Red3 {[#] Hoping for Rd8+.} O-O 24. Rd7 (24. Rd6 $17 {was called for.}) 24... Nxc3 $19 25. R1d2 $2 (25. Re1 {only move.}) 25... Nd5 $2 (25... Rb6 {[%csl Gc3][%cal Rb6b1]} 26. R2d6 Rb1+ 27. Kd2 Ne4+ {[%mdl 64] Double Attack} 28. Ke3 Nxd6 29. Bxd6 Rc8) 26. Bg3 (26. Rxb7 $142 Rc4 27. Bd6) 26... Rf7 27. Rd8+ $1 Rf8 28. Rd7 b5 29. Kb2 $2 {[#]} (29. f4) 29... h5 30. h4 $2 (30. Rd6 Rxd6 31. Bxd6) 30... Nb6 {Accuracy: White = 40%, Black = 71%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "13.3"]
[White "Anton Guijarro, David"]
[Black "Keymer, Vincent"]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "2590"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,57,15,18,11,16,8,27,25,26,21,49,13,55,40,36,33,49,45,59,49,130,129,265,251,546,538,576,575,567,547,613,601,700,700,952,786,800,785,812,752,1262,878,849,839]} 1. Nf3 d5 2. b3 Bf5 3. Bb2 c6 4. g3 h6 5. d3 Nf6 6. Nbd2 e6 7. Bg2 Nbd7 8. O-O Bh7 9. Re1 {A07: Réti Opening: New York and Capablanca Systems.} Bc5 10. e4 dxe4 11. dxe4 {White has an edge.} O-O 12. Qe2 {[#]} Qe7 $146 ({Predecessor:} 12... Qc7 13. Rad1 Rfd8 14. a3 a5 15. e5 Nd5 16. Ne4 Bf8 17. c4 N5b6 18. Nd6 Nc8 {1-0 (48) Stavroyany,S (2236)-Karnaukh,A (2269) Kiev 2008}) 13. a3 a5 14. e5 Nd5 15. c4 Nc7 16. Ne4 Rfd8 17. Red1 Bb6 (17... Bxe4 $14 18. Qxe4 Nf8) 18. Nd6 $16 Ne8 (18... Nc5 $16 {was necessary.}) 19. Nxb7 $18 {Black must now prevent Nd4.} Rab8 $2 {[#]} (19... Rdb8) 20. Nxd8 {White is clearly winning.} Rxd8 21. Nd4 Bxd4 22. Bxd4 c5 23. Bc3 a4 24. bxa4 Nc7 25. Bc6 Nb8 26. Rxd8+ Qxd8 27. Rd1 Qc8 28. Be4 Bf5 29. Ba5 {Black got outplayed after the opening. Accuracy: White = 81%, Black = 31%.} 1-0

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "13.4"]
[White "Edouard, Romain"]
[Black "Harikrishna, Pentala"]
[Result "1-0"]
[ECO "D20"]
[WhiteElo "2614"]
[BlackElo "2663"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,89,40,50,22,24,33,40,24,19,6,32,28,29,28,26,27,33,34,38,47,26,52,38,21,37,28,41,0,0,0,0,0,20,15,5,0,10,0,363,356,676,607,727,728,674,565,1126,1041,1110,671,1137,1004,1018,855,1527,938,1043,1035,1209,1227,1443,1309,1687,1331,2440,2348,29982,29983,29983,29984,29985,29986,7227,2748,6391,4914,29985,29986]} 1. d4 d5 2. c4 dxc4 3. e4 Nf6 4. e5 Nd5 5. Bxc4 Nb6 6. Bd3 Nc6 7. Ne2 Bg4 8. Be3 {D20: Queen's Gambit Accepted: 3 e3 and 3 e4.} (8. f3 $5 {[%cal Rf3g4]} Bh5 9. Nbc3 $14) 8... e6 9. Nbc3 Be7 10. a3 {White is slightly better.} Qd7 {[#]} 11. b4 $146 {[%cal Bb2b4,Bb4b5][%mdl 32]} ({Predecessor:} 11. Rc1 O-O-O 12. Be4 Kb8 13. O-O f5 14. exf6 gxf6 15. Kh1 f5 16. Bxc6 Qxc6 17. f3 {1-0 (26) Laurusas,T (2501)-Rodriguez Garcia,M (2175) Riga 2019}) 11... Rd8 12. Be4 O-O 13. Qc2 Bf5 14. Bxf5 exf5 15. Rd1 a5 16. b5 Na7 17. a4 Nac8 18. d5 Nc4 19. Bd4 N8b6 20. Bxb6 Nxb6 21. O-O Rfe8 22. f4 Nc4 23. Rf3 $1 {d6! is the strong threat.} Bc5+ 24. Nd4 Nb6 25. Kh1 Nxd5 $2 {[%mdl 8192] Black is on the road to losing.} (25... Bxd4 $1 $11 26. Rxd4 g6) 26. Nb3 $18 {[%mdl 64] [#] Double Attack} ({Stronger than} 26. Nxf5 Qe6 $11) 26... Bb4 $2 (26... Nb4) 27. Nxd5 Qe6 28. Rfd3 Rc8 29. Nc5 Qh6 30. Nxb7 Bf8 31. Qc6 Qh4 32. g3 Qg4 33. Ne3 Qh5 34. Nxa5 Re6 35. Qg2 g5 36. Nd5 Kh8 37. Nc6 Ra8 38. Nd4 Rg6 39. Nxf5 gxf4 40. Nxf4 {[%mdl 64] Double Attack, Discovered Attack} Qxf5 41. Nxg6+ hxg6 42. Qxa8 Kg7 43. Qg2 Bb4 {[#]} 44. e6 $1 Qxe6 45. Qb2+ {[%mdl 64] Double Attack. Accuracy: White = 76%, Black = 53%.} 1-0

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "14.1"]
[White "Studer, Noel"]
[Black "Adams, Michael"]
[Result "0-1"]
[ECO "E08"]
[WhiteElo "2422"]
[BlackElo "2709"]
[Annotator "TA"]
[PlyCount "136"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,136,0,0,-14,0,0,8,-10,-16,-20,-21,-62,-16,-20,0,0,12,-18,30,-1,0,-12,0,0,0,-92,-34,-36,-37,-84,-47,-134,-52,-75,-38,-77,-86,-78,-72,-78,-61,-72,0,0,0,-6,267,276,543,542,538,527,461,0,687,621,630,-731,647,0,0,-224,-224,-224,-224,-224,-224,-216,-209,-209,-169,-234,-235,-304,-212,-408,-408,-393,-387,-360,-353,-523,-502,-730,-762,-730,-698,-662,-643,-637,-620,-890,-821,-753,-696,-1095,-1135,-1381,-1082,-1619,-1568,-2058,-1609,-1533,-1581,-1500,-1472,-2216,-2598,-1879,-1652,-12841,-12842,-12846,-12847]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O Nbd7 8. Qc2 c6 9. Rc1 b6 10. cxd5 cxd5 11. Bf4 Bb7 12. Bc7 Qe8 13. Qb3 {E08: Closed Catalan: Main Line: 7 Qc2.} Ne4 14. Nc3 {[#]} Nb8 $5 $146 {[%mdl 8] New and interesting.} ({Predecessor:} 14... Nxc3 15. Rxc3 Ba6 16. Qd1 Nf6 17. Ne5 Rc8 18. Rac1 Ne4 19. R3c2 Qa4 20. Bf1 f6 {0-1 (57) Dreev,A (2671)-Bosiocic,M (2598) Zagreb 2019}) 15. Nxe4 {The position is equal.} dxe4 16. Nd2 Bd5 17. Qc3 f5 (17... Na6 $5 {[%cal Ra8c8]} 18. Be5 (18. Bxe4 $2 Bxe4 19. Nxe4 Rc8 $19) 18... f6 $15) 18. f3 {[%cal Rf3e4]} exf3 19. Bxf3 Qd7 20. Bf4 Na6 21. a3 Rac8 22. Qd3 Nc7 23. Nc4 Bxf3 24. exf3 (24. Ne5 $1 $11 Qd5 25. Nxf3 (25. exf3 Nb5 $11)) 24... Nd5 (24... Nb5 $17 25. Rd1 Rfd8) 25. Bd2 Bf6 26. Re1 Rfd8 27. Kg2 ({White should play} 27. Ne5 $1 $15 Qd6 28. Rad1) 27... h6 ({Black should try} 27... Nc7 $17 28. Bc3 Nb5) 28. Rad1 b5 29. Na5 Nb6 $1 30. Nb3 Nc4 31. Bc3 Qd5 32. Qe2 Rc6 (32... Re8 $17 33. Qd3 Red8) 33. Nc5 $11 Re8 34. Nd3 $36 {[%mdl 2048] White fights for an advantage.} a5 $2 {[%mdl 8192]} (34... Rcc8 $11 {and Black is okay.}) 35. Nf4 $18 Qd7 $2 (35... Qd8 36. d5 Rd6) 36. d5 Rd6 37. Bxf6 gxf6 38. dxe6 $2 ({White has to play} 38. b3 $18 Ne5 39. dxe6) 38... Qc6 $2 {[%mdl 8192]} (38... Rxd1 $11 39. exd7 (39. Rxd1 $2 {is the wrong capture.} Qxd1 40. Qxd1 Ne3+ {[%mdl 64] Double Attack} 41. Kg1 Nxd1 $19) 39... Rxe2+ 40. Rxe2 Rxd7) 39. Rxd6 Qxd6 40. Rd1 $4 {[%mdl 8192] [#]} (40. Nh5 $18 Re7 41. a4) 40... Qe5 $4 {[%mdl 8192] [#]} (40... Qxd1 $1 $19 {[%mdl 512]} 41. Qxd1 Ne3+ {[%mdl 64] Double Attack} 42. Kh3 Nxd1) 41. Kf2 $2 (41. Qd3 $1 $18 {[%cal Rd3d7] Qd7 would kill now.} Rf8 42. Qd7) 41... Qc5+ $11 42. Ke1 $2 {Black converts the advantage convincingly.} (42. Kg2 $1 $11 Ne3+ 43. Kh3 Nxd1 44. Qxd1) 42... Qg1+ $19 43. Qf1 Qxf1+ 44. Kxf1 {[%mdl 4096] Endgame And now Ke2 would win. KRN-KRN} Ne3+ {[%mdl 64] Double Attack} 45. Ke2 Nxd1 46. Kxd1 {KR-KN} Kf8 47. Kc2 (47. Ng6+ $142 Kg7 48. Nf4) 47... Ke7 48. Kd3 Rc8 49. Kd2 $2 (49. Ne2) 49... a4 50. Kd1 Kd6 51. Kd2 Rc4 52. Kd1 (52. h3 {was called for.}) 52... b4 {Black is clearly winning.} 53. axb4 Rxb4 54. Kc2 Rb3 55. Nd3 Rb5 56. Nf4 Rb8 57. Nd3 Rc8+ 58. Kb1 Kxe6 59. Ka2 Kd5 60. Ka3 Kd4 61. Nf4 Rb8 62. Nh5 Rb6 63. Ng7 Ke3 64. f4 Ke4 65. Ne8 Kf3 66. Ng7 Rb5 67. Kxa4 Rxb2 68. Nxf5 Rxh2 {Accuracy: White = 39%, Black = 63%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "14.2"]
[White "Wojtaszek, Radoslaw"]
[Black "Naiditsch, Arkadji"]
[Result "1-0"]
[ECO "E11"]
[WhiteElo "2690"]
[BlackElo "2581"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,61,27,27,27,26,49,46,45,36,35,32,46,50,58,18,22,20,22,16,20,15,14,24,18,25,26,0,0,0,14,11,10,7,13,10,12,0,13,0,57,8,44,48,45,50,246,207,519,515,839,839,6019,5163]} 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 c5 5. Bxb4 cxb4 6. e3 O-O {E11: Bogo-Indian.} 7. a3 {7.Be2 is a critical line.} Qe7 8. Be2 b6 {[#] White is slightly better.} 9. axb4 $146 ({Predecessor:} 9. O-O Bb7 10. axb4 Qxb4 11. Nc3 d5 12. Ne5 dxc4 13. Nxc4 Nbd7 14. Ra4 Qe7 15. Bf3 {1-0 (60) Khotenashvili,B (2514)-Koneru,H (2607) Tashkent 2013}) 9... Qxb4+ {[%mdl 64] [#] Double Attack} 10. Qd2 Qxd2+ 11. Nfxd2 Bb7 12. Bf3 Bxf3 13. Nxf3 Rc8 14. Nbd2 d5 15. cxd5 Nxd5 16. Ke2 Nc6 17. Rhc1 Kf8 18. Rc4 Na5 19. Rcc1 Ke7 20. Ne5 f6 21. Nd3 Nc6 22. Rc4 Kd7 23. Rac1 a5 24. g4 g5 ({Better is} 24... Ncb4 $11) 25. e4 Nf4+ (25... Ndb4 {feels hotter.} 26. Nxb4 Nxb4 27. h4 gxh4 28. Rh1 Ke8) 26. Nxf4 gxf4 27. Nf3 $36 {[%mdl 2048] And now e5 would win. White is pushing.} a4 $2 {This costs Black the game.} ({Black should try} 27... b5 $14 28. Rc5 e5) 28. g5 a3 $2 (28... b5 {is tougher.} 29. R4c2 Na5) 29. bxa3 $18 {White is clearly winning.} Rxa3 (29... b5 $142) 30. gxf6 b5 {[#]} 31. Rxc6 $1 {[%mdl 512] Accuracy: White = 84%, Black = 59%.} 1-0

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "14.3"]
[White "Keymer, Vincent"]
[Black "Anton Guijarro, David"]
[Result "0-1"]
[ECO "A88"]
[WhiteElo "2476"]
[BlackElo "2590"]
[Annotator "TA"]
[PlyCount "117"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,117,40,32,36,40,50,44,52,13,36,27,13,31,43,-152,-110,-97,-98,-100,-54,-46,31,14,22,2,14,7,8,-14,0,-56,-43,-56,-33,-33,-35,-34,-33,-48,-11,-64,-2,-10,-14,-41,-41,-84,0,0,0,-33,-37,-30,-33,-70,-65,-70,-65,-91,0,0,32,-21,-18,-18,-16,-16,-14,-15,-15,-70,-45,-40,-41,-36,-38,-96,-83,-76,0,-126,-127,-179,-61,-61,-61,-70,-1,-1,-1,-4493,-618,-618,-29959,-29964,-618,-29968,-29970,-29970,-29972,-29968]} 1. Nf3 f5 2. d4 Nf6 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. b3 d6 7. Bb2 c6 8. c4 a5 9. Nc3 Na6 10. a3 Nc7 $5 {[%mdl 4] Leaves trodden paths. A88: Dutch Defence: Leningrad System: 5 Nf3 0-0 6 0-0 d6 7 Nc3 c6.} 11. Qc2 {[#]} Rb8 $146 ({Predecessor:} 11... Re8 12. Rad1 Bd7 13. Na4 Na6 14. c5 Nd5 15. e4 fxe4 16. Ng5 Bf5 17. Bxe4 e6 {1-0 (33) Onstad,L-Rist,K Fagernes 2013}) 12. Rfd1 b5 {White is slightly better.} 13. Ne1 Bd7 14. Nd3 bxc4 15. bxc4 Qe8 16. e4 $2 (16. e3 $14 {stays ahead.}) 16... fxe4 17. Nxe4 Nxe4 18. Bxe4 Ne6 19. d5 Ng5 (19... Nd4 $15 20. Bxd4 Bxd4) 20. Bxg7 $14 Kxg7 21. Bg2 cxd5 22. cxd5 Nf3+ 23. Kh1 (23. Bxf3 $5 Rxf3 24. Qe2 $11) 23... Qf7 24. Nf4 (24. Qc7 $11 Qf5 25. Qxa5) 24... Ne5 (24... Rfc8 $5 {[%cal Rc8c2]} 25. Qe2 Ne5 $15) 25. Re1 g5 26. Nd3 Bf5 27. Nxe5 Bxc2 28. Nxf7 Rxf7 29. Rac1 (29. Kg1 $11) 29... Rxf2 (29... Bg6 $15) 30. Rxe7+ Kh6 31. Re6+ (31. Kg1 {seems wilder.} Rd2 32. Re6+ Bg6 33. Rxd6 Rbb2 34. Bf1) 31... Bg6 32. Rf1 {[#]} Rxf1+ ({Better is} 32... Ra2 $1 $17 33. g4 (33. Rxd6 Rbb2 $17) 33... Rbb2) 33. Bxf1 $17 {[%mdl 4096] Endgame KRB-KRB} Rb6 34. Kg1 Kg7 35. Re7+ Kf6 36. Ra7 Rb1 {[#] And now ...Bd3 would win.} 37. Kf2 Rb2+ 38. Ke3 Rb3+ (38... Rxh2 $17 39. Rxa5 Rc2) 39. Kd4 $11 Rxa3 40. Ra6 (40. Rd7 $1 $14) 40... Ra4+ 41. Bc4 Ke7 42. Ra7+ Kd8 43. Kc3 Ra1 44. h4 ({White should play} 44. Kd4 $11) 44... gxh4 45. gxh4 Rc1+ 46. Kd4 Rh1 47. Rxa5 (47. Ra8+ $15 Ke7 48. Rxa5) 47... Rxh4+ $17 48. Kc3 Ke7 (48... Rf4 $17) 49. Ra2 (49. Ra7+ $11 {was the only way to keep the balance.} Kf6 50. Rd7) 49... Rh3+ 50. Kb4 (50. Kd4 $17 {was called for.}) 50... Rf3 (50... Kf6 $19 {Hoping for ...h5.} 51. Re2 Bf5) 51. Re2+ $15 Kf7 $1 52. Kb5 $1 Rf4 ({Black should try} 52... Bf5 $15 53. Kb6 h5) 53. Re6 $11 Rf6 {Threatens to win with ...Rxe6.} 54. Kc6 $2 {[%mdl 8192] This costs White the game.} (54. Re1 $11) 54... Rxe6 $19 55. dxe6+ Ke7 56. Kd5 Bf5 (56... h5 $142 57. Kd4 h4 58. Ke3 Bf5 59. Kf4 Bxe6 60. Be2 h3 61. Bf1 Kf6 62. Kg3 d5 63. Be2 Bf5 64. Bb5 d4 65. Bf1 Ke5 66. Bc4 Ke4 67. Be2 d3 68. Bd1 Ke3 69. Ba4 Kd2 70. Bb5 Kc2 71. Ba4+ Kc1 72. Be8 d2 73. Bh5 d1=Q 74. Bxd1 Kxd1 75. Kf2 Bc8 76. Kf1 Kd2 77. Kf2 Bd7 78. Kf3 Ke1 79. Kg3 Ke2 80. Kf4 h2 81. Kg5 h1=Q 82. Kg6 Qh4 83. Kg7 Qg5+ 84. Kf7 Bf5 85. Kf8 Be6 86. Ke8 Qg7 87. Kd8 Qd7#) 57. Kd4 Bxe6 58. Be2 Kf6 59. Bf3 {Accuracy: White = 45%, Black = 66%.} 0-1

[Event "53rd Biel Blitz 2020"]
[Site "Biel"]
[Date "2020.07.25"]
[Round "14.4"]
[White "Harikrishna, Pentala"]
[Black "Edouard, Romain"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "2663"]
[BlackElo "2614"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2020.07.21"]
[EventType "tourn"]
[EventCountry "SUI"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,73,0,6,6,10,15,10,3,23,18,13,13,25,-6,0,0,0,0,7,0,0,0,10,0,20,27,62,24,35,22,47,38,22,0,0,0,20,14,25,14,89,78,91,69,89,89,53,21,51,0,0,0,0,-18,-14,-118,677,64,635,597,29988,29989]} 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 g6 5. O-O Bg7 6. Bb5+ Bd7 7. Bxd7+ Nbxd7 ({Much weaker is} 7... Kxd7 $6 8. Qb3 $16) 8. Re1 {B50: Sicilian: 2...d6, Miscellaneous.} Ne5 9. d4 Nxf3+ 10. Qxf3 {The position is equal.} cxd4 11. cxd4 O-O 12. Nc3 {[#]} Qb6 $146 ({Predecessor:} 12... Nd7 13. Rd1 Re8 14. Be3 a6 15. Rac1 Nb6 16. b3 Rc8 17. e5 d5 18. h4 Rc6 {0-1 (42) Cabarkapa,N (2314)-Ardeleanu,A (2338) Subotica 2012}) 13. Qd1 e6 14. Rb1 Rac8 {White must now prevent ...Rxc3!} 15. Be3 d5 16. e5 Nd7 17. h4 f6 18. f4 f5 19. h5 Kf7 20. Qa4 Rfd8 21. Bf2 Qc6 22. Nb5 {And now Qb3 would win.} Bf8 $1 23. Qb3 Qb6 $1 24. Qd3 a6 25. Nc3 Be7 26. Qh3 {Threatens to win with hxg6+.} Rg8 {[#]} (26... Kg7 $11 {remains equal.}) 27. Nxd5 $1 $16 {[%mdl 512]} exd5 28. e6+ {[%mdl 64] Double Attack} Ke8 $1 29. exd7+ Kxd7 30. Re5 Bd6 $1 31. hxg6 (31. Re3 $14 Rg7 32. Rb3) 31... Bxe5 $11 32. gxh7 Rh8 $1 {Hoping for ...Bb8.} 33. dxe5 Qg6 34. e6+ (34. Qb3 $11 {keeps the balance.} Rc7 35. Qxd5+ Kc8 36. Kf1) 34... Kxe6 $2 {[%mdl 8192] [#]} (34... Ke8 $17 35. Qd3 Rxh7) 35. Re1+ $2 (35. Qb3 $1 $18 {[%mdl 512]} Qf7 36. Bd4 Rxh7 37. Re1+ Kd7 38. Qxb7+ {[%mdl 64] Double Attack} Rc7 39. Qxa6) 35... Kf7 $2 {[%mdl 8192]} (35... Kd7 $14) 36. Qd3 $18 Qxh7 {[%csl Gh8][%cal Rh7h1]} 37. Qxd5+ {[%mdl 64] Double Attack. Accuracy: White = 71%, Black = 63%.} 1-0

