[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "1.1"]
[White "Wang, Hao"]
[Black "Fedoseev, Vladimir"]
[Result "1/2-1/2"]
[ECO "E06"]
[WhiteElo "2735"]
[BlackElo "2683"]
[Annotator "TA"]
[PlyCount "151"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,151,14,27,-9,-10,0,0,-14,-9,-6,-8,-25,0,0,8,5,10,9,8,13,25,20,27,17,15,13,25,0,18,0,0,0,0,0,0,-78,0,-104,-62,-60,-62,-158,-158,-158,-158,-158,-158,-158,-89,-98,-99,-154,-158,-302,-206,-218,-185,-177,-185,-184,-184,-184,-184,-192,-131,-159,-141,-176,-173,-204,-204,-354,-348,-395,-391,-795,-822,-29989,-97,-277,0,-334,-328,-330,-183,-509,-497,-1458,-1168,-551,-532,-1483,-160,-258,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 e6 2. Nf3 Nf6 3. g3 d5 4. d4 Be7 5. Bg2 O-O 6. O-O c6 7. Qc2 b6 8. cxd5 {E06: Closed Catalan: Early deviations} cxd5 9. Bf4 Bb7 10. Rc1 Nc6 11. Nc3 Rc8 12. Qd1 Ne4 13. h4 $146 ({Predecessor:} 13. Ne5 Nxe5 14. Bxe5 Nxc3 15. Rxc3 Rxc3 16. bxc3 {0-1 (79) Makhnev,D (2476)-Andreikin,D (2725) Astana 2019}) 13... Bd6 (13... f6 {is interesting.} 14. Bh3 Qd7 15. e3 Nb4 16. Qa4 Bc6) 14. Bxd6 Nxd6 15. e3 Rc7 16. Bf1 Qc8 17. a4 Qb8 18. Nb5 Rcc8 19. Bd3 h6 20. Kg2 Ne4 21. Bxe4 dxe4 22. Ne5 $1 {[%cal Re5d7]} Nxe5 23. dxe5 Qxe5 24. Qd7 (24. Rxc8 $11 {keeps the balance.} Bxc8 25. Nxa7) 24... Rb8 ({Avoid the trap} 24... Qxb2 $2 25. Rab1 $18) (24... Rxc1 $17 25. Rxc1 Qxb2) 25. Rc7 (25. Nxa7 $11 {remains equal.} Qf5 26. Kg1) 25... Rbd8 26. Qe7 Qxb2 27. Rf1 (27. Qa3 $1 $15 Qxa3 28. Rxa3) 27... Ba6 $17 28. Rxa7 Bxb5 29. axb5 Qxb5 30. Qb7 Qb4 (30... Qf5 $142 31. Qxb6 Qf3+ 32. Kg1 Rd1) 31. Rc1 Qb2 32. Rf1 ({Better is} 32. Qc6) 32... Rd5 33. Raa1 (33. Ra4 $17) 33... b5 34. Rad1 Rfd8 35. Rxd5 Rxd5 $19 {[%mdl 4096] Endgame KQR-KQR} ({Much less strong is} 35... exd5 36. Rd1 $17) 36. Qb8+ Kh7 37. Qf4 f5 38. Qc7 Qe5 (38... b4 $19 39. Qe7 b3 40. Qxe6 Qe5 41. Qxe5 Rxe5) 39. Qe7 Qd6 40. Qe8 Qd7 41. Qb8 Rc5 42. Ra1 (42. Qf8 $142 Rc2 43. Kg1) 42... Rc8 43. Qe5 Rc2 44. Rb1 $2 {[#]} (44. g4) 44... Qd2 $1 45. Qf4 {[#]} Rb2 $2 (45... g5 $1 {mates} 46. Qc7+ (46. hxg5 hxg5) 46... Rxc7 47. hxg5 hxg5 48. Rh1+ Kg6 49. g4 {[#]} Qe2 $1 {[%mdl 512]} 50. gxf5+ Kxf5 51. Rb1 Qf3+ 52. Kg1 Kg4 53. Rxb5 Rc1+ 54. Kh2 Qxf2#) 46. Rf1 $2 (46. Rxb2 $17 Qxb2 47. Qc7) 46... Rc2 $2 (46... Qc3 $19 {Strongly threatening ...b4.} 47. g4 Qf6) 47. g4 $2 {[%mdl 8192]} (47. Rb1 $1 $11) 47... Rc5 48. g5 Qe2 (48... Qd8 $142 49. Ra1 hxg5 50. hxg5 Kg6) 49. Ra1 $2 (49. gxh6 {was the crucial defense.} gxh6 50. Ra1) 49... hxg5 50. Qxg5 (50. hxg5 $142 b4 51. g6+ Kxg6 52. Ra7) 50... Qf3+ 51. Kg1 b4 52. Rb1 {If only White now had time for h5....} b3 $2 (52... Rd5 $19 {and Black stays clearly on top.} 53. h5 Rd1+ 54. Rxd1 Qxd1+ 55. Kh2 Qg4) 53. h5 $17 {intending Qg6+.} Qg4+ $2 ({Stronger than} 53... Rc2 54. Qg6+ Kh8 55. Qe8+ Kh7 56. Qg6+ Kh8 57. Qe8+ Kh7 58. Qg6+ $11) ({Black should try} 53... Rc8 $19 54. Qg6+ Kh8 55. Qxe6 Qg4+ 56. Kf1 Qh3+ 57. Kg1 Rb8) 54. Qxg4 $11 {The position is equal.} fxg4 55. Rxb3 Rxh5 {KR-KR} 56. Rb4 Re5 57. Kg2 Kg6 58. Kg3 Kg5 59. Rb7 $1 g6 60. Rb4 Kf5 61. Rb8 Kg5 62. Rb4 Kf5 63. Rb8 g5 64. Rf8+ Kg6 65. Kxg4 Kg7 66. Ra8 (66. Rb8 {with more complications.} Kf6 67. Kg3 Rc5 68. Kg2 Rc4 69. Rb5) 66... Rf5 67. Kg3 Kf6 68. Rg8 Ra5 69. Kg2 Kf5 70. Rf8+ Kg6 71. Rb8 Ra1 72. Rb5 Kf6 73. Rb4 Kf5 74. Rb5+ Kf6 75. Rb4 Kf5 76. Rb5+ {Accuracy: White = 48%, Black = 51%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "1.2"]
[White "Le, Quang Liem"]
[Black "Yu, Yangyi"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2704"]
[BlackElo "2739"]
[Annotator "TA"]
[PlyCount "179"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,179,6,14,12,0,0,0,0,0,1,-20,-20,-20,-29,-36,-8,-21,33,0,71,25,32,50,100,92,152,125,137,152,134,83,90,86,73,67,37,0,0,0,0,0,58,53,60,59,59,61,51,50,56,55,59,58,48,34,34,40,66,55,83,45,44,36,92,92,165,170,226,219,212,81,81,81,81,81,81,51,52,52,53,18,18,18,16,18,14,14,203,212,203,203,255,316,260,187,495,452,448,395,473,26,26,26,26,0,0,0,20,20,20,20,20,20,20,20,20,20,20,0,20,20,24,22,22,0,20,20,20,20,20,20,20,20,20,20,20,20,2298,1620,812,340,5089,5089,637,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. b3 Be7 5. Bb2 O-O 6. Nc3 dxc4 {A13: English Opening: 1...e6} 7. bxc4 c5 (7... b6 8. d4 Bb7 9. Bd3 c5 10. d5 exd5 11. cxd5 b5 12. Bxb5 Nxd5 13. O-O Nf6 14. Qc2 {1-0 (102) Giri,A (2797)-Yu,Y (2751) Shenzhen 2019}) 8. Qc2 b6 9. Be2 Bb7 10. Rg1 Nc6 11. a3 Na5 12. d3 Ne8 13. g4 {[#]} a6 $146 (13... Nd6 $11) ({Predecessor:} 13... Nd6 14. g5 {1-0 (149) Malakhov,V (2666)-Movsesian,S (2645) Biograd 2018}) 14. g5 $14 b5 (14... f5 $11) 15. Rd1 Rb8 16. Ne4 Ba8 17. h4 bxc4 ({Black should play} 17... Bxe4 18. dxe4 Qc7) 18. dxc4 Qb6 19. Be5 Qb3 20. Nf6+ (20. Qc1 $142) 20... Bxf6 $16 21. Qxb3 Rxb3 22. gxf6 g6 23. Ng5 Nc6 24. Ba1 Rxa3 25. h5 Nb4 (25... e5 $11) 26. Kf1 Rxa1 27. Rxa1 Nxf6 28. Ra5 Rc8 29. hxg6 hxg6 30. Bf3 Bxf3 31. Nxf3 Ne4 32. Rg4 {[%mdl 1024] White has compensation.} Nd6 33. Ke2 Nb7 34. Ra1 a5 35. Nd2 Kg7 36. Rh4 Ra8 ({Black should try} 36... Kf6 $14) 37. Ne4 Ra7 (37... Nc6 $16) 38. Rd1 $1 $18 a4 (38... Ra8 $142 39. f4 Nc6) 39. Rd7 Nc6 40. Rc7 (40. Rf4 $18 {has better winning chances.} Ne5 41. Rc7) 40... a3 41. Rh1 Nba5 42. Rxa7 Nxa7 $16 {[%mdl 4096] Endgame KRN-KNN} 43. Kd3 N7c6 44. Kc3 Ne5 45. Nd2 Ng4 $1 46. Rf1 f5 47. Nb3 Nxb3 48. Kxb3 $11 {KR-KN} e5 $2 (48... Kf6 $11 {and Black has nothing to worry.}) 49. Kxa3 $18 e4 50. Ka4 $1 {[%cal Ra4b5]} Ne5 51. Kb5 Nd3 52. f4 $1 exf3 $2 (52... Kh6 {is a better chance.} 53. Rh1+ Kg7) 53. Rxf3 Kf6 54. e4 $1 Ne1 {[#]} 55. Rf1 $2 ({Only move:} 55. Re3 $1 $18 {[%cal Re3e1]} Ng2 56. Rg3) 55... Nd3 $11 56. exf5 gxf5 57. Rd1 (57. Rf3 $5 {[%cal Rf3d3]} Ne5 58. Rb3 $16) 57... Nf2 $1 {[%cal Rf2d1]} 58. Rd6+ Kg5 59. Re6 Ne4 60. Kc6 Kf4 61. Kd5 Ke3 62. Re5 Kf4 63. Re7 Ke3 64. Rf7 Kf4 65. Rf8 Kg4 66. Ke6 Nd2 67. Kd5 Ne4 $1 68. Ra8 Kf4 69. Ra1 {Hoping for Rf1+.} Ke3 70. Ra3+ Kf4 71. Rb3 Kg4 72. Rd3 Kf4 73. Ra3 {Threatens to win with Ra1.} Kg4 $2 {[%mdl 8192] [#]} (73... Nf6+ $11 74. Ke6 (74. Kxc5 Ke4 $16) 74... Ne4) 74. Ra1 $1 $18 {[%cal Ra1g1]} Nd2 75. Rd1 Ne4 $2 (75... Nb3 76. Rd3 Nc1) 76. Ke5 Ng3 77. Kd5 $2 (77. Rd8 $18 f4 78. Rg8+ Kf3 79. Ra8) 77... f4 $11 {The position is equal.} 78. Kxc5 f3 79. Kd5 {And now c5 would win.} f2 80. c5 {c6 is the strong threat.} f1=Q 81. Rxf1 Nxf1 {KN-KP} 82. c6 Ne3+ $1 83. Kd6 Nf5+ $1 84. Kd7 Ne3 $1 85. Kd6 {Black must now prevent c7.} Nf5+ $1 86. Kd7 {Strongly threatening c7.} Ne3 $1 87. c7 Nd5 88. c8=Q {Threatening mate with Kd6+.} Nb6+ {[%mdl 64] Double Attack} 89. Kc7+ Nxc8 90. Kxc8 {Accuracy: White = 71%, Black = 56%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "1.3"]
[White "Andreikin, Dmitry"]
[Black "Leko, Peter"]
[Result "1/2-1/2"]
[ECO "D38"]
[WhiteElo "2722"]
[BlackElo "2674"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,86,24,23,29,14,28,28,32,22,18,22,22,22,22,7,7,12,19,12,12,11,11,14,20,8,8,9,16,11,18,-10,-16,-16,-11,-24,-24,-20,-20,-12,-18,-17,-14,-17,-16,-12,0,-20,-23,-31,-8,-8,-8,-8,-8,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 h6 6. Qa4+ $146 ({Predecessor:} 6. Bxf6 Qxf6 7. Qa4+ {½-½ (24) Ragger,M (2668)-Boruchovsky,A (2517) Zalakaros 2015}) 6... Nc6 7. Bxf6 Qxf6 8. e3 O-O {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4)} 9. Be2 Bd7 {[#] And now ...Nxd4 would win.} 10. Qb3 dxc4 {White has an edge.} 11. Qxc4 Qe7 12. O-O Na5 13. Qxc7 Rac8 14. Qe5 Bxc3 15. bxc3 Qa3 16. Rac1 Rxc3 17. Rxc3 Qxc3 18. Qd6 Qc2 19. Bd1 Qc6 20. Qe7 {[#] Hoping for Ne5.} Re8 21. Qa3 Qa6 22. Ne5 Bb5 23. Re1 Nc4 24. Nxc4 Bxc4 25. Qxa6 Bxa6 $11 {[%mdl 4096] Endgame KRB-KRB} 26. Bb3 Rc8 27. f4 Rc3 28. d5 exd5 29. Bxd5 Bc4 30. Bxc4 (30. Bxb7 {keeps more tension.} Bxa2 31. Ra1 Rc2 32. Rd1 Kf8 33. Be4) 30... Rxc4 {KR-KR} 31. Rd1 g6 32. Rd7 {The position is equal.} Ra4 33. Rxb7 Rxa2 34. h4 h5 35. Kh2 Ra3 36. Kg1 Rxe3 37. Rxa7 Kg7 38. Kf2 Rb3 39. Ra6 Rb2+ 40. Kf3 Rb3+ 41. Kf2 Rb2+ 42. Kf3 Rb3+ 43. Kf2 Rb2+ {Accuracy: White = 82%, Black = 69%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "1.4"]
[White "Ponomariov, Ruslan"]
[Black "Korobov, Anton"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2675"]
[BlackElo "2687"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,81,29,0,36,49,36,18,24,37,33,31,27,33,35,42,30,14,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 Nc6 7. Be3 Nxd4 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5} (7... e6 8. g4 Qc7 9. Bg2 Nd7 10. Qe2 Na5 11. O-O-O Nc4 12. Bf4 Nde5 13. Bg3 g5 14. h4 gxh4 15. Rxh4 {1-0 (36) Leko,P (2731)-Grischuk,A (2795) Sochi 2014}) 8. Qxd4 e5 9. Qb6 Qxb6 10. Bxb6 Be6 11. O-O-O Rc8 12. Ba5 $146 ({Predecessor:} 12. g4 h6 13. Bg2 Be7 14. Be3 Nd7 15. Kb1 {1-0 (25) Karaklajic,N-Bogdanovic,R Vrnjacka Banja 1962}) 12... Be7 13. Bb4 Rd8 14. Be2 d5 {The position is equal.} 15. exd5 Nxd5 16. Ba5 Nxc3 17. Rxd8+ Bxd8 18. Bxc3 f6 19. Rd1 Bc7 20. Bf3 b6 21. Bb4 Kf7 22. Bd6 Bd8 23. b3 Be7 24. c4 Rd8 25. Bxe7 Rxd1+ 26. Kxd1 Kxe7 $11 {[%mdl 4096] Endgame KB-KB} 27. Kd2 a5 28. Kc3 Kd6 29. a3 g5 30. b4 axb4+ 31. axb4 h6 32. Be2 Bf7 33. g4 Be6 34. Bd3 Bd7 35. Be4 Be6 36. Kd3 Bf7 37. Bf3 Bg6+ 38. Be4 Bf7 39. Bf3 Bg6+ 40. Be4 Bf7 41. Bf3 {Accuracy: White = 74%, Black = 89%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "1.5"]
[White "Dominguez Perez, Leinier"]
[Black "Mamedov, Rauf"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2750"]
[BlackElo "2650"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,99,18,12,0,0,0,18,0,0,0,5,-26,-28,-26,-29,-27,-34,-31,-25,-30,-25,-28,-24,-41,-18,-64,-68,-79,-20,-46,-44,-37,-34,-45,-33,-48,-33,-39,-20,-60,-67,-101,-22,-122,0,-80,-17,-26,-21,-50,0,-27,-21,-13,0,0,0,-138,-83,-73,0,0,9,0,292,283,370,310,409,334,656,580]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 Rb8 12. Nc2 Bg5 13. Be2 O-O 14. O-O a5 15. Qd3 Ne7 16. Nce3 {B33: Sicilian: Pelikan and Sveshnikov Variations} Be6 (16... Nxd5 17. Nxd5 Be6 18. Rad1 f5 19. Bf3 Kh8 20. exf5 Bxf5 21. Be4 Be6 22. a3 Qd7 23. Kh1 g6 {½-½ (60) Canovas Pardomingo,M (2576)-Busemann,S (2633) ICCF email 2009}) 17. Rfd1 b4 $146 ({Predecessor:} 17... Nxd5 18. Nxd5 Qd7 19. Qg3 Qd8 20. b4 f5 21. exf5 Bxf5 22. bxa5 Be6 23. Nc7 Bd7 24. Rxd6 Bf4 25. Qd3 Bxh2+ 26. Kxh2 Qh4+ {½-½ (26) Eiben,P (2480)-Standke,W (2489) ICCF email 2016}) 18. Nxe7+ {The position is equal.} Qxe7 19. c4 Qa7 20. Nd5 f5 21. exf5 Bxf5 22. Qg3 Bh6 23. Ne3 Bf4 24. Qf3 Bg6 {Hoping for ...Bxh2+!} 25. Qh3 e4 26. b3 Kh8 27. Rab1 a4 28. Bg4 Ra8 (28... axb3 $17 29. axb3 Qa2) 29. Be6 axb3 30. axb3 Be5 {And now ...Qa2 would win.} 31. Bd5 Rae8 32. Rd2 Bc3 33. Re2 Bd4 34. Rd1 Re5 35. Rde1 Bc3 (35... Rh5 $1 $17 {[%cal Rh5h3]} 36. Qg4 Rh6) 36. Rb1 (36. Rc1 $11) 36... Bd4 37. Rbe1 Bh5 ({Better is} 37... Rh5 $1 $17 {[%cal Rh5h3]} 38. Qg4 Bc3) 38. Rc2 $11 Bc3 39. Rb1 Bd4 40. Qg3 Qe7 41. Ra2 Rg5 42. Qh3 $40 {[%mdl 128] White mounts an attack.} Bf3 43. g3 {[#]} (43. Kh1 $11 {remains equal.} Bh5 44. Re1) 43... Rh5 ({Black should play} 43... Bxe3 $1 44. fxe3 Qe5) 44. Qe6 $17 {[#]} Qxe6 (44... Qc7 $1 $17) 45. Bxe6 $11 g5 46. Bg4 Bxg4 $4 {[%mdl 8192]} (46... Rh6 $1 $11 {and Black has nothing to worry.}) 47. Nxg4 $18 Rf3 48. Kg2 Bc3 49. Re2 Rf8 $2 (49... d5 50. cxd5 Rd3 51. Rxe4 Rxd5) 50. Rxe4 {Accuracy: White = 48%, Black = 37%.} 1-0

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "1.6"]
[White "Vidit, Santosh Gujrathi"]
[Black "Rapport, Richard"]
[Result "1-0"]
[ECO "A41"]
[WhiteElo "2707"]
[BlackElo "2736"]
[Annotator "TA"]
[PlyCount "165"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,165,31,45,23,51,45,58,43,47,42,48,47,70,46,49,45,71,70,79,60,97,35,39,39,47,42,76,69,84,93,92,91,93,84,92,77,81,43,79,26,17,40,36,12,65,65,84,65,327,133,102,76,60,65,114,114,111,118,92,104,89,111,146,135,141,139,169,160,233,197,228,230,367,346,396,384,381,395,368,374,360,359,286,286,875,689,833,512,952,992,939,39,66,45,919,0,939,883,956,930,947,916,893,813,616,602,5267,4903,3889,3399,2533,2461,2313,2177,1538,1830,29939,29936,12810,29945,29936,29943,7268,11097,10655,10236,7950,6551,8060,6556,5725,2946,2346,1893,6487,5522,29964,29963,29963,29963,29957,29967,29961,29956,29956,5618,29975,29975,29953,29958,29976,11697,6466,6391,29977,29978,29984,29981]} 1. d4 d6 2. Nf3 Nf6 3. g3 g6 4. Bg2 Bg7 5. c4 c5 6. Nc3 {E60: King's Indian: Unusual lines and Fianchetto Variation without Nc3} cxd4 7. Nxd4 h5 $146 ({Predecessor:} 7... a6 8. O-O Nbd7 9. b3 O-O 10. Bb2 Ne5 11. Qd2 Rb8 12. h3 Bd7 13. Kh2 Nc6 14. Nc2 b5 15. Ne3 Qa5 16. Rfd1 bxc4 17. Nxc4 Qh5 18. Ne3 Bh6 {1-0 (31) Dzagnidze,N (2513)-Badelka,O (2385) St Petersburg 2018}) 8. h3 {White is slightly better.} O-O 9. Be3 Qc7 10. Rc1 Nc6 11. O-O Bd7 12. b3 Rfc8 13. Qd2 Qd8 14. Rfd1 a6 15. Kh2 (15. Nf3 $16) 15... Nxd4 $14 16. Bxd4 Bc6 17. a4 Kh7 18. e4 Qh8 19. a5 Nd7 20. Bxg7 Qxg7 21. Qe3 Rab8 22. Nd5 Re8 23. h4 Qh6 24. Qxh6+ (24. Qe1 $16) 24... Kxh6 $11 25. b4 {[%cal Bb3b4,Bb4b5][%mdl 32]} Kg7 26. Bh3 Nf6 ({Better is} 26... Ne5 $11) 27. f3 $14 Rbd8 28. Nb6 Bd7 $2 {[%mdl 8192] [#]} (28... Nd7 $1 $14) 29. Bf1 (29. e5 $1 $18 {[%cal Re5f6][%mdl 512]} Bc6 (29... dxe5 30. Bxd7) 30. exf6+ exf6 31. Rd2) 29... Be6 $16 30. b5 Nd7 31. Nxd7 Rxd7 32. c5 $1 dxc5 {aiming for ...Rxd1.} 33. Rxd7 Bxd7 34. bxa6 bxa6 35. Rxc5 {[%mdl 4096] Endgame KRB-KRB} Ra8 36. Kg2 Ra7 37. Kf2 f6 38. f4 e6 (38... Kf7 $16 39. e5 f5 40. Bc4+ Kf8) 39. Ke3 Kf7 40. e5 f5 (40... Be8 $142 41. exf6 Kxf6) 41. Rc1 $18 Ke7 42. Rb1 Rc7 43. Bxa6 Rc3+ 44. Bd3 $1 Bc6 {White must now prevent ...Rxd3+!} 45. Rb4 $1 {[%cal Rb4c4]} Ra3 46. a6 $1 Be4 $2 (46... Kd7 47. Kd4 Kc7) 47. Rxe4 fxe4 48. Kxe4 {KR-KB} Ra4+ (48... Kd8 $142 49. Kd4 Kd7 50. Bxg6 Rxa6) 49. Ke3 Kf7 50. Kd2 $2 ({White should play} 50. Bb5 $18 Ra5 51. Bd3) 50... Ra3 $14 51. Ke2 Ra2+ $2 {[%mdl 8192]} (51... Ke7 $14) 52. Ke3 Ra4 $1 53. Bb5 Ra5 54. Bc4 Ke7 55. Kd4 Kd7 56. Bd3 $1 {[%cal Rd3g6]} Ra3 57. Bxg6 Rxa6 58. Ke3 $1 ({Weaker is} 58. Bxh5 Ra3 $11) 58... Ra3+ {[#]} 59. Kf2 $1 Ra2+ 60. Kf3 Ra3+ {[#]} 61. Kg2 $1 Kc6 62. Bxh5 Kd7 63. Bg6 Ke7 64. Kh3 (64. h5 $18 Kf8 65. h6) 64... Kf8 65. h5 Kg7 66. Kh4 Rf3 67. Be8 Kf8 68. Bd7 Kf7 69. Bc6 Rc3 70. Be4 Kg7 71. Bg2 Rc1 72. g4 Rc2 73. Kg3 Kh6 74. Bf3 Rc3 75. g5+ Kg7 76. Kg4 Rc4 77. Be2 Rc3 78. Bb5 Rc1 79. h6+ Kf7 80. Bd3 (80. f5 $142 Rb1 81. fxe6+ Kxe6 82. h7 Rb4+ 83. Kg3 Rb3+ 84. Kg4 Rb4+ 85. Kh5 Rxb5 86. h8=Q Rxe5 87. Kg4) 80... Rg1+ $18 81. Kf3 Rh1 82. Kg2 Rd1 83. Bh7 {Accuracy: White = 71%, Black = 32%.} 1-0

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "1.7"]
[White "Bu, Xiangzhi"]
[Black "Cheparinov, Ivan"]
[Result "1/2-1/2"]
[ECO "D30"]
[WhiteElo "2729"]
[BlackElo "2667"]
[Annotator "TA"]
[PlyCount "168"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,168,19,19,18,6,17,14,6,18,16,5,10,3,5,0,5,0,0,-9,0,0,0,0,0,0,0,0,3,2,57,58,57,47,63,61,63,40,96,94,85,88,94,87,92,86,91,77,64,34,41,38,43,42,48,35,31,34,41,29,41,0,8,0,21,0,13,11,20,20,113,31,140,0,7,7,7,7,7,0,0,0,0,0,0,0,0,0,8,7,7,0,8,7,8,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,8,0,8,0,8,8,8,0,8,0,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8]} 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Bg5 h6 5. Bxf6 Qxf6 6. Nc3 Bb4 7. Qa4+ Nc6 8. e3 O-O {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4)} 9. Be2 dxc4 10. O-O (10. Bxc4 e5 11. O-O exd4 12. Nd5 Qd6 13. Nxb4 Qxb4 14. Qxb4 Nxb4 15. Nxd4 Bd7 16. a3 {1-0 (49) Duda,J (2738)-Vidit,S (2695) chess.com INT 2019}) 10... Bd7 11. Bxc4 Bxc3 12. bxc3 Rfd8 {next ...Nxd4 is good for Black.} 13. Qa3 b6 14. Rad1 $146 ({Predecessor:} 14. Ba6 Qe7 15. Qxe7 Nxe7 16. a4 Bc8 17. Bxc8 Raxc8 18. a5 c5 19. axb6 {½-½ (19) Nilsen,J (2415)-Teplyi,I (2431) Copenhagen 2016}) 14... Qe7 15. Qxe7 Nxe7 16. e4 c5 17. dxc5 bxc5 18. Ne5 $36 {[%mdl 2048] White is more active.} Ba4 19. Rxd8+ Rxd8 20. f3 Nc6 21. Nd3 Bc2 (21... Na5 $11 22. Ba6 c4) 22. Nxc5 $14 Ne5 23. Ba6 Rd2 24. Bb5 g5 25. Rc1 Bd3 (25... Bd1 $14) 26. Nxd3 $16 Nxd3 27. Bxd3 Rxd3 {[%mdl 4096] Endgame KR-KR} 28. Rc2 Kf8 29. Kf2 Ke7 30. Ke2 Rd6 31. Rd2 Ra6 $1 32. Ke3 Ra4 33. Kd3 e5 34. h3 h5 35. g3 h4 36. gxh4 gxh4 37. Ke3 Ra3 38. Kd3 Ra4 39. Ke3 Ra3 40. Rc2 Ke6 41. f4 f6 (41... Kd6 $11) 42. Kf3 ({White should play} 42. f5+ $16 Kd6 43. Kf3) 42... Ra4 (42... exf4 $14 43. Kxf4 a5) 43. Ke3 ({White should try} 43. f5+ $16 Kd6 44. Rd2+ Kc5 45. Rd5+ Kc6 46. Rd8) 43... f5 {The position is equal.} 44. exf5+ Kxf5 45. fxe5 Kxe5 46. Rg2 Re4+ 47. Kd3 Rf4 48. Ke3 Re4+ 49. Kd3 Rf4 50. Rg5+ Kd6 51. Ke3 Rc4 52. Kd3 Rf4 53. Rg6+ Kc5 54. Re6 Rf3+ 55. Re3 Rf2 56. Re2 Rf3+ 57. Re3 Rf2 58. a4 a5 59. Re5+ Kb6 60. Re6+ Kc5 61. Re5+ Kb6 62. Kd4 {[#] Re6+ is the strong threat.} Rd2+ 63. Kc4 {aiming for Rh5.} Rh2 64. Re3 Kc6 65. Rf3 Rh1 66. Re3 Rh2 67. Rf3 Rh1 68. Rf6+ Kc7 69. Rf7+ Kc6 70. Rf6+ Kc7 71. Kc5 Rxh3 72. Rf7+ Kd8 73. c4 Rh1 74. Kb5 h3 75. Rh7 h2 {[#] And now ...Rb1+ would win.} 76. Kxa5 Kc8 77. c5 Rc1 78. Rxh2 {Strongly threatening Kb6.} Rxc5+ 79. Kb6 (79. Kb4 {looks sharper.} Rc1 80. Kb3 Kb8 81. Ka2 Kb7 82. Rh7+) 79... Rc1 80. Rh8+ Kd7 81. a5 {Hoping for a6.} Rb1+ 82. Kc5 {Black must now prevent a6.} Rc1+ 83. Kb6 Rb1+ 84. Kc5 {Threatens to win with a6.} Rc1+ {Accuracy: White = 47%, Black = 72%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "1.8"]
[White "Jones, Gawain C B"]
[Black "Gelfand, Boris"]
[Result "0-1"]
[ECO "C43"]
[WhiteElo "2702"]
[BlackElo "2676"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,96,0,0,0,0,10,0,8,9,13,0,0,0,14,0,4,0,0,0,0,0,25,22,16,-22,8,8,9,0,0,-3,0,0,0,0,0,0,0,0,0,0,0,-40,-37,-24,-41,-179,-172,-320,-308,-327,-340,-348,-338,-334,-310,-434,-425,-369,-260,-6260,-6219,-6219,-5193,-4928,-4750,-4593,-4409,-3351,-2475,-29971,-29975,-29975,-29975,-29980,-29981,-29981,-29982,-29982,-29983,-29983,-29984,-29984,-29985,-29985,-29985]} 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 6. O-O Nxe5 7. dxe5 Nc5 {C43: Petroff Defence: 3 d4} 8. Be3 Nxd3 9. Qxd3 c6 {The position is equal.} 10. Nd2 Be7 11. f4 g6 12. c3 c5 $146 ({Predecessor:} 12... Bf5 13. Qe2 Qd7 14. Nb3 b6 15. h3 {1-0 (63) Jones,G (2682)-Huzman,A (2580) St Petersburg 2018}) 13. Rad1 Bf5 14. Qb5+ Qd7 15. Qxd7+ Kxd7 16. Nb3 b6 17. Rxd5+ Kc6 18. Rfd1 Rhd8 19. Rxd8 Rxd8 20. Rxd8 (20. Rc1 {seems wilder.} f6 21. exf6 Bxf6 22. Nd2 a5 23. Re1) 20... Bxd8 $11 {[%mdl 4096] Endgame KBB-KBN} 21. Kf2 f6 22. exf6 Bxf6 23. Nd2 Kd5 24. Kf3 Bc2 25. g4 Bd1+ 26. Kg3 a5 27. f5 gxf5 $1 28. gxf5 a4 29. a3 (29. Kf4 $15) 29... b5 $1 $19 {[%cal Bb6b5,Bb5b4][%mdl 32]} 30. h4 {[#]} (30. Kf4 {keeps fighting.}) 30... b4 $1 {[%mdl 512]} 31. Bg5 {[#]} (31. axb4 cxb4) 31... Be5+ $1 ({Less strong is} 31... bxc3 32. Bxf6 c2 33. Nb3 $17) 32. Kf2 bxc3 33. bxc3 Bxc3 34. Ke3 Bc2 35. f6 {Threatens to win with f7.} Ke6 36. Ne4 $2 (36. Ke2) 36... Bd4+ 37. Kf4 Be5+ 38. Ke3 Bxe4 39. Kxe4 {KB-KB} Bb2 40. Bd2 Bxa3 41. Bc3 Bc1 {Black mates.} 42. f7 Kxf7 43. Kd5 a3 44. Kxc5 Bb2 45. Kb4 Kg6 46. Kb3 Bxc3 47. Kxa3 Kh5 48. Kb3 Kxh4 {Accuracy: White = 40%, Black = 84%.} 0-1

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "2.1"]
[White "Gelfand, Boris"]
[Black "Dominguez Perez, Leinier"]
[Result "0-1"]
[ECO "D40"]
[WhiteElo "2676"]
[BlackElo "2750"]
[Annotator "TA"]
[PlyCount "106"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,112,-5,0,-10,25,22,24,0,14,-1,-9,-15,0,-38,-43,-39,-38,-87,-82,-74,-72,-56,-56,-53,-55,-64,-29,-31,0,-38,-29,-30,-19,-41,-4,-4,0,0,0,0,0,-7,0,-9,-8,-10,0,-13,-12,-27,-21,-108,-73,-89,-85,-103,-86,-86,-75,-272,-110,-127,-110,-137,-129,-159,-150,-261,-240,-260,-189,-183,-168,-194,-198,-474,-231,-225,-210,-310,-277,-255,-232,-261,-268,-310,-223,-221,-212,-554,-545,-550,-549,-533,-531,-550,-556]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. e3 cxd4 6. exd4 Bb4 7. cxd5 Nxd5 8. Qc2 Nc6 9. a3 Ba5 10. Bd3 {B14: Caro-Kann: Panov-Botvinnik Attack with 5...e6 and 5...g6} h6 11. O-O O-O 12. Rd1 {White has an edge.} Bd7 13. Ne4 Bb6 {[#]} 14. Bc4 $146 ({Predecessor:} 14. Be3 Qe7 15. Nc3 Rac8 16. Qe2 Na5 17. Bd2 Bc6 18. Nxd5 Bxd5 {½-½ (55) Grischuk,A (2733)-Fridman,D (2665) Villarrobledo 2009}) 14... Rc8 15. Nd6 {[%mdl 64] Double Attack} Rc7 16. Nb5 {[#]} Ncb4 $1 {[%mdl 512]} 17. Qb3 (17. axb4 Bxb5) 17... Bxb5 18. Bxb5 Nc2 19. Rb1 Qf6 {[%cal Rc2d4]} 20. Qd3 Rfc8 21. Be3 $1 Nf4 22. Qe4 Nd5 23. Bd3 Ncxe3 24. fxe3 g6 25. Kh1 Kg7 26. g4 Qe7 27. Rg1 Qd6 28. g5 {Hoping for gxh6+.} h5 29. Rbf1 {White wants to play Ne5.} Ne7 30. Ne5 $132 {[%mdl 2048] White puts up resistance} Nf5 31. Qf3 Qe7 32. Be4 a5 33. Qf4 Ba7 34. Nd3 (34. Re1 $11 {remains equal.}) 34... Bb8 {...Rc2 is the strong threat.} 35. Qf3 ({Don't go for} 35. Bxf5 $2 exf5 36. Qf3 Rc2 $19) 35... Rc2 {[%csl Gb8][%cal Rc2h2]} 36. Rf2 Rxf2 37. Qxf2 b6 {[%cal Bb7b6,Bb6b5][%mdl 32]} 38. d5 $2 (38. Ne1 $17) 38... Nd6 (38... Rc4 $19 {and Black stays clearly on top.} 39. Qf3 Nh4 40. Qf6+ Qxf6 41. gxf6+ Kxf6) 39. Bf3 $17 e5 40. e4 b5 {Threatens to win with ...Ba7.} 41. Qd2 Ba7 42. Rc1 (42. Re1 $17) 42... Rc4 $19 43. Rxc4 Nxc4 44. Qg2 a4 45. h4 Bd4 46. Qh2 $2 {[#]} (46. Be2 {was called for.}) 46... Qc7 (46... Bxb2 $142 $1 {[%mdl 512]} 47. Be2 (47. Nxb2 Qxa3) 47... Qxa3) 47. Qe2 Nd6 48. Qd2 (48. Qd1 {was worth a try.}) 48... Qc8 {( -> ...Qh3+!)} 49. Kh2 Qc4 50. Kg2 Qb3 51. Qd1 Qa2 52. Qc1 {[#]} Nc4 $1 {[%cal Rd4b2]} 53. Kh1 $2 (53. Be2 {nothing else works.}) 53... Bxb2 {Played: Qa2-b3} 0-1

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "2.2"]
[White "Yu, Yangyi"]
[Black "Vidit, Santosh Gujrathi"]
[Result "1/2-1/2"]
[ECO "A33"]
[WhiteElo "2739"]
[BlackElo "2707"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,101,0,0,0,10,4,12,12,12,0,0,0,0,0,0,0,2,0,11,-4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-21,-17,-44,-44,-44,0,-20,-20,-38,-38,-44,-32,-44,-34,-63,-76,-62,-44,-55,-18,-43,-20,-44,-25,-32,-12,-12,-12,-15,-4,-3,-4,-8,0,0,0,-10,0,0,0,0,18,18,18,2,13,13,39,13,13,13,13,13,13,13,13,13]} 1. Nf3 Nf6 2. c4 c5 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 e6 6. Bf4 d5 7. e3 {A33: Symmetrical English: 2 Nf3 Nf6 3 d4 cxd4 4 Nxd4 e6 5 Nc3 Nc6} Bb4 8. Be2 dxc4 (8... Bd7 9. Ndb5 e5 10. Bg5 a6 11. a3 axb5 12. axb4 Rxa1 13. Qxa1 dxc4 14. O-O O-O 15. Rd1 Qe7 16. Nd5 Qe6 17. Nc7 Qe7 18. Nd5 Qe6 19. Nc7 Qe7 {½-½ (19) Nepomniachtchi,I (2729)-Vachier Lagrave,M (2789) London 2017}) 9. Nxc6 {[%csl Gc6][%cal Rd1d8] [#]} Qxd1+ 10. Rxd1 {[%csl Gc6][%cal Rd1d8]} bxc6 11. Bxc4 Nd5 12. O-O Nxf4 13. exf4 Ke7 14. Ne4 {[#]} Ba5 $146 ({Predecessor:} 14... Rb8) 15. Rd3 Rd8 16. Rfd1 Rxd3 17. Rxd3 Bc7 18. g3 h6 19. h4 Rb8 20. b3 a5 21. a4 Bd7 22. Nc5 Rd8 23. h5 Bc8 24. Kg2 Bd6 25. Ne4 Bc7 26. Rxd8 Bxd8 $11 {[%mdl 4096] Endgame KBB-KBN} 27. Nc5 Bb6 28. Nd3 f6 29. Kf3 Kd6 30. Ke4 Bd7 31. Kf3 Bd4 32. g4 c5 33. Kg3 Bc6 34. f3 Be8 35. Ne1 g6 36. hxg6 Bxg6 37. Nd3 h5 38. Kh4 hxg4 39. fxg4 Ke7 40. Kg3 Be4 41. Nf2 Bc2 42. Kf3 Kd6 43. Ne4+ Bxe4+ (43... Kd7 {keeps more tension.} 44. g5 fxg5 45. fxg5 Bd1+ 46. Kf4 Bc2) 44. Kxe4 {KB-KB} Bc3 45. g5 fxg5 46. fxg5 Ke7 47. Be2 Bd2 {The position is equal.} 48. g6 Kf6 49. Bg4 Kxg6 50. Bxe6 Kf6 51. Bc4 {Accuracy: White = 69%, Black = 56%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "2.3"]
[White "Leko, Peter"]
[Black "Wang, Hao"]
[Result "1/2-1/2"]
[ECO "C65"]
[WhiteElo "2674"]
[BlackElo "2735"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,87,20,20,23,29,16,23,0,0,0,0,0,0,0,18,19,28,-12,43,24,118,122,119,106,199,205,209,195,217,209,191,103,101,101,101,101,102,102,102,103,114,118,135,68,51,17,18,9,3,0,59,49,88,37,18,0,0,0,0,0,0,0,0,-15,-10,-26,-26,-26,0,-26,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bxc6 dxc6 6. O-O $146 {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5} ({Predecessor:} 6. Nbd2 Be6 7. O-O {1-0 (45) Nakamura,H (2787)-Aronian,L (2792) Zuerich 2016}) 6... Bd6 7. Nbd2 Be6 8. d4 {White has an edge.} Nd7 $1 9. dxe5 Nxe5 10. Nxe5 Bxe5 11. f4 Qd4+ 12. Kh1 {Black must now prevent c3.} Bd6 13. Qe2 O-O-O ({Black should try} 13... f6 $11) 14. c3 $14 Qc5 (14... Qa4 $11 {keeps the balance.}) 15. f5 $1 $16 {[%cal Rf5e6]} Bd7 16. Nc4 $36 {[%mdl 2048] White is in control.} Rhe8 (16... Bf8 $16 {is a better defense.}) 17. b4 $18 Qb5 18. a4 Qa6 19. Bg5 f6 20. Rfb1 ({White should play} 20. Bh4 $1 $18) 20... fxg5 {[#]} 21. b5 $1 {[%mdl 512]} cxb5 22. axb5 Bxb5 23. Rxa6 Bxa6 24. Nxd6+ Rxd6 {[#]} 25. Qg4 $1 {And now f6+ would win.} Rd7 {[#]} 26. Re1 (26. h4 $1 $16) 26... Re5 $1 $14 27. Qxg5 Rxe4 $1 {[%cal Re4e1]} 28. Qc1 Bd3 29. g4 Be2 (29... b5 $11 30. Rxe4 Bxe4+ 31. Kg1 Bd5) 30. h3 {[%mdl 1024] White has compensation.} a5 31. Kg2 (31. Kh2 $16) 31... a4 32. Kf2 Rde7 $1 33. Qd2 Bc4 (33... b5 {feels hotter.} 34. Qd5 R4e5 35. Qa8+ Kd7 36. c4 Bf3) 34. Rxe4 Rxe4 $11 {[%mdl 4096] Endgame KQ-KRB} 35. Qc1 b5 36. Qa3 Kb7 37. Kg3 Re3+ 38. Kh4 Bf1 39. Kg5 Rxh3 ({Don't blunder} 39... Bxh3 $2 40. Qc5 $18) 40. Qe7 {The position is equal.} Bc4 41. Qe4+ Kb8 42. Qe8+ Kb7 {Strongly threatening ...a3.} 43. Qe4+ Kb8 {Threatens to win with ...a3.} 44. Qe8+ {Accuracy: White = 56%, Black = 37%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "2.4"]
[White "Cheparinov, Ivan"]
[Black "Andreikin, Dmitry"]
[Result "1/2-1/2"]
[ECO "E18"]
[WhiteElo "2667"]
[BlackElo "2722"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,52,21,33,14,49,14,10,8,24,0,0,0,18,0,0,0,0,0,0,0,21,13,17,12,13,0,12,0,21,0,0,0,3]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Bd2 d6 9. Qc2 Nxd2 10. Nxd2 Bxg2 11. Kxg2 Nd7 12. Rad1 {E18: Queen's Indian: Old Main Line (4 g3 Bb7 5 Bg2 Be7 6 0-0 0-0 7 Nc3)} g6 $146 ({Predecessor:} 12... a6 13. b4 c6 14. e4 b5 15. c5 a5 16. a3 axb4 17. axb4 dxc5 18. dxc5 Bf6 19. Ndb1 Qc7 {½-½ (30) Cheparinov,I (2698)-Tran,M (2406) Ho Chi Minh City 2017}) 13. b4 Bf6 14. Nf3 Bg7 15. b5 a6 {The position is equal.} 16. a4 Qc8 17. Qe4 axb5 18. axb5 Ra3 19. Rc1 Re8 20. e3 f5 21. Qc2 Qa8 {[#] White must now prevent ...g5.} 22. Qe2 Qa5 23. Qc2 Qa8 {...g5 is the strong threat.} 24. Qe2 Qa5 25. Qc2 Qa8 {[#] And now ...g5 would win.} 26. Qe2 Qa5 {Accuracy: White = 42%, Black = 68%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "2.5"]
[White "Korobov, Anton"]
[Black "Le, Quang Liem"]
[Result "1/2-1/2"]
[ECO "E12"]
[WhiteElo "2687"]
[BlackElo "2704"]
[Annotator "TA"]
[PlyCount "44"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,44,0,-7,0,2,35,35,32,32,31,10,4,6,18,-13,-17,-33,-38,-21,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 7. Bd2 Be7 8. Qc2 c5 {E12: Queen's Indian: Unusual White 4th moves, 4 a3, 4 Nc3 Bb7 5 a3 and 4 Nc3 Bb7} 9. dxc5 O-O 10. cxb6 $146 ({Predecessor:} 10. Rd1 bxc5 11. e4 Nxc3 12. Bxc3 Qb6 13. Ne5 Rd8 14. Rxd8+ Qxd8 15. Bb5 a6 {0-1 (56) Adhiban,B (2653)-Eljanov,P (2755) Wijk aan Zee 2017}) 10... Qxb6 {White is slightly better.} 11. e3 Nd7 12. Be2 Rfc8 13. O-O Nc5 14. Nxd5 Bxd5 15. Rac1 Qb7 {[%mdl 1024] Black has compensation.} 16. Qb1 Bf6 {The position is equal.} 17. b4 Be4 18. Qa2 Bd5 19. Qb1 $1 Be4 20. Qa2 Bd5 21. Qb1 $1 Be4 22. Qa2 Bd5 {Accuracy: White = 69%, Black = 73%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "2.6"]
[White "Fedoseev, Vladimir"]
[Black "Bu, Xiangzhi"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2683"]
[BlackElo "2729"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,75,20,-11,0,-7,0,-15,0,0,122,122,122,122,127,125,137,134,112,111,209,204,183,157,161,81,129,131,133,126,119,77,106,83,220,204,229,161,308,222,211,198,237,198,200,175,450,389,391,388,376,370,369,352,29980,29980,29996,29997,29997,29998]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qb3 dxc4 5. Qxc4 Bf5 6. g3 e6 7. Bg2 Nbd7 8. O-O Be7 9. Nc3 O-O 10. Bf4 Rc8 {D23: Queen's Gambit Accepted: 3 Nf3 Nf6 sidelines} 11. a3 $146 ({Predecessor:} 11. Qb3 Qb6 12. Rfe1 Bg6 13. e4 Rfd8 14. d5 Bc5 15. Qxb6 axb6 16. dxe6 fxe6 17. Bh3 Nf8 18. Ng5 {0-1 (40) Carron,J (2421)-Pelletier,Y (2625) Switzerland 2008}) 11... h6 12. Rfd1 Qb6 {The position is equal.} 13. b4 Nd5 {[#]} (13... a5 $11) 14. e4 $1 $16 {[%cal Re4f5]} Nxc3 15. exf5 Nxd1 16. fxe6 Nb2 17. Qb3 fxe6 18. Qxe6+ {[%mdl 64] Double Attack} Kh8 (18... Rf7 $16) 19. Qxe7 Qd8 20. Qe2 $36 {[%mdl 2048] White is on the roll.} Na4 21. Qc2 (21. Nh4 $18) 21... Rxf4 22. gxf4 Nab6 23. Re1 Qf6 24. f5 Nf8 25. Qc5 Nd5 (25... Nfd7 $16 {was necessary.} 26. Qc2 Rf8) 26. Ne5 $18 Nf4 27. Be4 Nh7 (27... Qh4 {was called for.}) 28. Qc3 Ng5 29. Bc2 Rd8 30. Kf1 Nd5 31. Qg3 Ne7 $2 (31... Kg8 {was worth a try.} 32. b5 Nf7) 32. Ng4 Qf7 {[#]} 33. Nxh6 $1 {[%mdl 512]} gxh6 34. Qe5+ Kg8 35. Qxe7 Rxd4 $2 {[#]} (35... Qxe7 $18 36. Rxe7 b5) 36. Bb3 $1 {[%mdl 576] Deflection, Back Rank. White mates.} Qxb3 37. Qe8+ Kg7 38. Qg6+ {Accuracy: White = 65%, Black = 23%.} 1-0

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "2.7"]
[White "Rapport, Richard"]
[Black "Ponomariov, Ruslan"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2736"]
[BlackElo "2675"]
[Annotator "TA"]
[PlyCount "118"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,118,30,42,25,35,33,35,25,47,39,48,27,42,43,35,23,48,15,15,23,36,34,37,34,50,24,26,0,0,0,7,0,5,7,48,50,62,57,55,56,53,59,49,27,39,32,51,-123,-46,-44,-44,-39,36,33,28,11,0,0,0,0,3,0,0,0,6,0,0,0,0,0,155,159,154,144,153,150,137,0,0,0,0,-4,0,0,0,0,0,-20,13,8,9,8,41,0,8,8,8,8,8,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c6 2. d4 d5 3. e5 c5 4. Nf3 Nc6 5. dxc5 e6 6. a3 {B12: Caro-Kann: Advance Variation} Bxc5 7. b4 Bb6 8. Bd3 {White is slightly better.} (8. b5 Nb8 9. Bb2 a6 10. a4 Nh6 11. Be2 axb5 12. axb5 Rxa1 13. Bxa1 {1-0 (40) Grischuk,A (2771)-Navara,D (2739) Shamkir 2019}) 8... f6 9. Bb2 fxe5 10. Nxe5 Nf6 11. O-O O-O 12. Nd2 a5 $146 ({Predecessor:} 12... Bd7) 13. b5 Nxe5 14. Bxe5 Bd7 15. a4 Be8 16. c4 Rc8 17. h3 Qe7 18. Qc2 Kh8 19. Rae1 Bh5 20. Kh1 Bc5 21. Qb2 b6 22. cxd5 Nxd5 23. Ne4 Bb4 24. Rc1 Ba3 25. Bxg7+ $1 Qxg7 26. Qxa3 Nf4 $1 {[%csl Gf4][%cal Rg7g2]} ({Much worse is} 26... Rxc1 $6 27. Rxc1 Bg6 28. Ng5 $16) 27. Ng3 Bf3 $1 {[%cal Rf3g2]} 28. Kh2 $2 {[#]} (28. gxf3 $14 Qh6 29. Qb2+ Kg8 30. Nh5 Rxc1 31. Rxc1 Nxh5 32. Rg1+ Ng7 33. Kg2 (33. Rg3 Qf6 $16)) 28... Bxg2 (28... Rcd8 $1 $17 {[%cal Rd8d3]} 29. Bb1 Bxg2) 29. Rxc8 $1 $15 Rxc8 30. Rc1 $1 {[%cal Rc1c8]} Rf8 {[#]} (30... Rd8 $15 31. Rc4 Nxd3 32. Kxg2 Qf6) 31. Rc7 $1 $14 {[%mdl 512]} Qf6 (31... Qxc7 32. Qxf8#) 32. Be4 Bxe4 33. Nxe4 Qf5 $1 34. Qc3+ e5 $132 {[%mdl 2048] Black puts up resistance} 35. Nd6 Qf6 36. Ne4 Qf5 $1 37. Nd6 Qf6 38. Ne4 Qf5 $1 39. Qf3 {With the idea Rc6.} Ng6 $2 ({Black should play} 39... Nd5 $1 $11 40. Qxf5 Rxf5 41. Rc8+ Kg7) 40. Qxf5 $16 Rxf5 {[%mdl 4096] Endgame KRN-KRN} 41. Kg3 Rf4 42. f3 Nh4 43. Ng5 ({White should try} 43. Rc6 $16) 43... Nf5+ $11 44. Kf2 Rxa4 45. Rxh7+ Kg8 {Hoping for ...Ra2+.} 46. Rb7 Ra2+ 47. Ke1 Nd4 48. Rxb6 Rb2 {...a4 is the strong threat.} 49. Ra6 Rxb5 50. h4 Rc5 51. h5 {Threatens to win with Rg6+.} e4 {The position is equal.} 52. Nxe4 Nxf3+ 53. Kf2 Rf5 54. Rg6+ Kh8 55. Rh6+ Kg7 56. Rg6+ Kh8 57. Rh6+ Kg7 58. Rg6+ Kh8 {And now ...Ne5+ would win.} 59. Rh6+ Kg7 {Accuracy: White = 59%, Black = 69%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "2.8"]
[White "Mamedov, Rauf"]
[Black "Jones, Gawain C B"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "2650"]
[BlackElo "2702"]
[Annotator "RC"]
[PlyCount "114"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "900+10"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} d6 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 4. e5 {[%emt 0:00:00]} dxe5 {[%emt 0:00:01]} 5. Nxe5 {[%emt 0:00:00]} a6 {[%emt 0:00:19]} 6. g3 {[%emt 0:00:10]} Nbd7 {[%emt 0:00:38]} 7. Nc4 {[%emt 0:00:32]} b5 {[%emt 0:00:16]} 8. Bg2 {[%emt 0:00:02]} Rb8 {[%emt 0:00:02]} 9. Ne3 {[%emt 0:00:03]} e6 {[%emt 0:00:11]} 10. O-O {[%emt 0:00:07]} Bd6 {[%emt 0:00:58]} 11. a4 {[%emt 0:00:02]} O-O {[%emt 0:00:26]} 12. axb5 {[%emt 0:00:09]} axb5 {[%emt 0:00:01]} 13. b3 {[%emt 0:01:58]} Be5 {[%emt 0:00:44]} 14. Bb2 {[%emt 0:00:03]} Bd4 {[%emt 0:00:17]} 15. Qe2 {[%emt 0:04:44]} Qb6 {[%emt 0:00:29]} 16. Ra2 {[%emt 0:00:25]} Bb7 {[%emt 0:00:50]} 17. Rfa1 {[%emt 0:00:02]} Bxg2 {[%emt 0:01:46]} 18. Nxg2 {[%emt 0:00:03]} Ne5 {[%emt 0:00:44]} 19. Ne4 {[%emt 0:01:21]} Bxb2 {[%emt 0:00:09]} 20. Nxf6+ {[%emt 0:00:12]} gxf6 {[%emt 0:00:02]} 21. Rxb2 {[%emt 0:00:01]} Rfd8 {[%emt 0:01:56]} 22. d3 {[%emt 0:01:09]} Qc6 {[%emt 0:00:20]} 23. Ne1 {[%emt 0:00:06]} b4 {[%emt 0:01:55]} 24. Rba2 {[%emt 0:00:08]} Qd5 {[%emt 0:00:05]} 25. Qe3 {[%emt 0:00:46]} Nc6 {[%emt 0:00:45]} 26. Nf3 {[%emt 0:00:03]} Kg7 {[%emt 0:00:05]} 27. Qf4 h5 {[%emt 0:00:57]} 28. Ra6 {[%emt 0:01:37]} Rbc8 {[%emt 0:00:04]} 29. R1a2 {[%emt 0:01:19]} Rd7 {[%emt 0:00:14]} 30. Rb6 {[%emt 0:00:28]} Rcc7 {[%emt 0:01:06]} 31. Raa6 {[%emt 0:01:26]} Nd4 {[%emt 0:00:11]} 32. Nxd4 {[%emt 0:00:05]} cxd4 {[%emt 0:00:02]} 33. Rb8 {[%emt 0:00:05]} Ra7 {[%emt 0:00:55]} 34. Rxa7 {[%emt 0:00:25]} Rxa7 {[%emt 0:00:02]} 35. Qe4 {[%emt 0:00:01]} Qc5 {[%emt 0:01:15]} 36. Kg2 {[%emt 0:01:23]} Ra2 {[%emt 0:00:23]} 37. Rd8 {[%emt 0:00:02]} e5 {[%emt 0:01:03]} 38. Qf3 {[%emt 0:00:31]} Qc7 {[%emt 0:00:51]} 39. Rd5 {[%emt 0:00:11]} Qc6 {[%emt 0:00:20]} 40. g4 {[%emt 0:00:04]} hxg4 {[%emt 0:00:24]} 41. Qxg4+ {[%emt 0:00:02]} Kf8 {[%emt 0:00:01]} 42. Qf3 {[%emt 0:00:30]} Rxc2 {[%emt 0:00:02]} 43. h4 {[%emt 0:00:01]} Ke7 {[%emt 0:00:10]} 44. h5 {[%emt 0:00:01]} Ke6 {[%emt 0:00:26]} 45. Rd8 {[%emt 0:00:01]} Qxf3+ {[%emt 0:00:04]} 46. Kxf3 {[%emt 0:00:01]} Kf5 {[%emt 0:00:02]} 47. Rg8 {[%emt 0:00:06]} Rc3 {[%emt 0:00:41]} 48. Kg2 {[%emt 0:00:20]} e4 {[%emt 0:00:01]} 49. h6 {[%emt 0:01:22]} exd3 {[%emt 0:00:07]} 50. h7 {[%emt 0:00:01]} d2 {[%emt 0:00:01]} 51. h8=Q {[%emt 0:00:01]} d1=Q {[%emt 0:00:03]} 52. Qh7+ {[%emt 0:00:02]} Kf4 {[%emt 0:00:26]} 53. Qh4+ {[%emt 0:00:53]} Kf5 {[%emt 0:00:01]} 54. Qh7+ {[%emt 0:00:22]} Kf4 {[%emt 0:00:07]} 55. Qh4+ {[%emt 0:00:04]} Kf5 {[%emt 0:00:11]} 56. Qh7+ {[%emt 0:00:04]} Kf4 {[%emt 0:00:40]} 57. Qh4+ {[%emt 0:00:17]} Kf5 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "3.1"]
[White "Dominguez Perez, Leinier"]
[Black "Fedoseev, Vladimir"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2750"]
[BlackElo "2683"]
[Annotator "RC"]
[PlyCount "149"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "900+10"]

1. e4 {[%emt 0:00:00]} e5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:00]} 3. Bc4 {[%emt 0:00:00]} Bc5 {[%emt 0:00:03]} 4. c3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:03]} 5. d3 {[%emt 0:00:00]} d6 {[%emt 0:00:32]} 6. Nbd2 {[%emt 0:00:03]} a5 {[%emt 0:00:18]} 7. O-O {[%emt 0:00:11]} O-O {[%emt 0:00:05]} 8. h3 {[%emt 0:00:03]} Be6 {[%emt 0:00:54]} 9. Bb5 {[%emt 0:00:03]} Ba7 {[%emt 0:00:24]} 10. Re1 {[%emt 0:00:14]} Ne7 {[%emt 0:01:26]} 11. Nf1 {[%emt 0:00:30]} c6 {[%emt 0:00:37]} 12. Ba4 {[%emt 0:00:02]} h6 {[%emt 0:01:24]} 13. Ng3 {[%emt 0:00:05]} b5 {[%emt 0:00:29]} 14. Bc2 {[%emt 0:00:03]} c5 {[%emt 0:00:31]} 15. d4 {[%emt 0:00:56]} Qc7 {[%emt 0:00:32]} 16. Be3 {[%emt 0:00:26]} Rac8 {[%emt 0:00:41]} 17. d5 {[%emt 0:02:44]} Bd7 {[%emt 0:00:02]} 18. a4 {[%emt 0:00:25]} c4 {[%emt 0:00:27]} 19. Nxe5 {[%emt 0:04:05]} Bxe3 {[%emt 0:00:01]} 20. Rxe3 {[%emt 0:00:02]} dxe5 {[%emt 0:00:11]} 21. d6 {[%emt 0:00:01]} Qb6 {[%emt 0:00:15]} 22. dxe7 {[%emt 0:00:03]} Rfe8 {[%emt 0:00:01]} 23. axb5 {[%emt 0:00:55]} Rxe7 {[%emt 0:00:30]} 24. Re2 {[%emt 0:00:59]} Bxb5 {[%emt 0:00:33]} 25. Rd2 {[%emt 0:00:15]} Rd7 {[%emt 0:00:14]} 26. Nf5 {[%emt 0:01:33]} Rcd8 {[%emt 0:00:31]} 27. Ne7+ {[%emt 0:00:18]} Kf8 {[%emt 0:01:09]} 28. Nd5 {[%emt 0:00:03]} Nxd5 {[%emt 0:00:11]} 29. exd5 {[%emt 0:00:02]} Bc6 {[%emt 0:00:19]} 30. Be4 {[%emt 0:01:07]} Bxd5 {[%emt 0:00:59]} 31. Bxd5 {[%emt 0:03:22]} Qc5 {[%emt 0:01:00]} 32. b4 {[%emt 0:00:54]} axb4 {[%emt 0:00:02]} 33. cxb4 {[%emt 0:00:02]} Qxb4 {[%emt 0:00:05]} 34. Ra4 {[%emt 0:00:38]} Qb3 {[%emt 0:01:05]} 35. Rxc4 {[%emt 0:00:34]} Qxd1+ {[%emt 0:00:04]} 36. Rxd1 {[%emt 0:00:01]} Rxd5 {[%emt 0:00:01]} 37. Rxd5 {[%emt 0:00:01]} Rxd5 {[%emt 0:00:01]} 38. h4 {[%emt 0:00:17]} f5 {[%emt 0:00:29]} 39. g3 {[%emt 0:00:14]} Kf7 {[%emt 0:00:19]} 40. Rc7+ {[%emt 0:00:02]} Kg6 {[%emt 0:00:05]} 41. Rb7 {[%emt 0:00:02]} e4 {[%emt 0:00:06]} 42. Kf1 {[%emt 0:00:15]} Rd3 {[%emt 0:00:12]} 43. Ra7 {[%emt 0:00:08]} f4 {[%emt 0:01:05]} 44. gxf4 {[%emt 0:00:02]} Rf3 {[%emt 0:00:12]} 45. h5+ {[%emt 0:00:22]} Kf6 {[%emt 0:00:29]} 46. Ra6+ {[%emt 0:00:08]} Kf5 {[%emt 0:00:01]} 47. Rg6 {[%emt 0:00:26]} e3 {[%emt 0:00:20]} 48. Ke2 {[%emt 0:00:01]} Kxf4 {[%emt 0:00:15]} 49. fxe3+ {[%emt 0:00:16]} Rxe3+ 50. Kf2 {[%emt 0:00:01]} Re7 {[%emt 0:00:02]} 51. Kg2 {[%emt 0:00:22]} Rd7 {[%emt 0:00:08]} 52. Kf2 {[%emt 0:00:07]} Ra7 {[%emt 0:00:16]} 53. Kg2 {[%emt 0:00:15]} Rb7 {[%emt 0:00:23]} 54. Kf2 {[%emt 0:00:04]} Ke4 {[%emt 0:00:56]} 55. Kg2 {[%emt 0:00:10]} Ke3 {[%emt 0:00:17]} 56. Kg3 {[%emt 0:00:11]} Ke2 {[%emt 0:00:03]} 57. Kg2 {[%emt 0:00:06]} Re7 {[%emt 0:00:01]} 58. Rg4 {[%emt 0:00:11]} Rf7 {[%emt 0:00:13]} 59. Re4+ {[%emt 0:00:06]} Kd3 {[%emt 0:00:01]} 60. Rg4 {[%emt 0:00:01]} Ke3 {[%emt 0:00:02]} 61. Rg3+ {[%emt 0:00:08]} Ke2 {[%emt 0:00:01]} 62. Rg6 {[%emt 0:00:04]} Rf2+ {[%emt 0:00:06]} 63. Kg1 {[%emt 0:00:08]} Rf7 {[%emt 0:00:01]} 64. Kg2 {[%emt 0:00:01]} Re7 {[%emt 0:00:37]} 65. Rg4 {[%emt 0:00:04]} Ke3 {[%emt 0:00:19]} 66. Rg3+ {[%emt 0:00:08]} Kf4 {[%emt 0:00:02]} 67. Rg6 {[%emt 0:00:02]} Re2+ {[%emt 0:00:06]} 68. Kf1 {[%emt 0:00:06]} Re7 {[%emt 0:00:05]} 69. Kf2 {[%emt 0:00:05]} Ra7 {[%emt 0:00:04]} 70. Kg2 {[%emt 0:00:03]} Ra2+ {[%emt 0:00:01]} 71. Kh3 {[%emt 0:00:01]} Ra5 {[%emt 0:00:02]} 72. Rxg7 {[%emt 0:00:02]} Rxh5+ {[%emt 0:00:01]} 73. Kg2 {[%emt 0:00:00]} Rg5+ {[%emt 0:00:02]} 74. Rxg5 {[%emt 0:00:01]} hxg5 {[%emt 0:00:02]} 75. Kf2 {[%emt 0:00:01]} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "3.2"]
[White "Vidit, Santosh Gujrathi"]
[Black "Korobov, Anton"]
[Result "1/2-1/2"]
[ECO "D12"]
[WhiteElo "2707"]
[BlackElo "2687"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,90,14,22,20,30,18,12,19,35,25,32,25,29,37,56,34,39,49,52,34,43,43,56,8,11,10,10,14,10,-20,-18,-17,-13,-27,0,6,12,13,17,16,15,13,35,0,42,8,8,8,8,8,8,5,11,8,7,7,8,7,7,7,7,7,7,7,7,7,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. Nc3 e6 6. Nh4 Be4 7. f3 Bg6 8. Qb3 Qc7 9. Bd2 {D12: Slav Defence: 3 Nf3 Nf6 4 e3 Bf5} Be7 10. Nxg6 (10. cxd5 Nxd5 11. Nxg6 hxg6 12. O-O-O Nd7 13. Nxd5 cxd5+ 14. Kb1 a6 15. Rc1 Qb8 16. Bb4 a5 {½-½ (51) Eljanov,P (2680)-Postny,E (2623) chess.com INT 2019}) 10... hxg6 11. O-O-O Nbd7 12. Kb1 dxc4 13. Bxc4 b5 14. Be2 a6 15. Ne4 c5 16. Nxc5 Nxc5 17. dxc5 Qxc5 $146 ({Predecessor:} 17... Bxc5) 18. Rc1 Qb6 19. h4 O-O 20. g4 Rfd8 21. Rc2 Rac8 22. h5 Rxc2 23. Qxc2 gxh5 24. gxh5 Qc5 25. e4 Qxc2+ (25... Rd7 {with more complications.} 26. Qxc5 Bxc5 27. Bf4 Bd6 28. Be3 Be5) 26. Kxc2 Nd7 27. Rd1 Rc8+ 28. Kb1 Ne5 29. Bc3 Nc6 30. h6 gxh6 {The position is equal.} 31. Rg1+ Kf8 32. Bg7+ Ke8 33. Bxh6 Bf6 34. Rg8+ Kd7 35. Rxc8 Kxc8 $11 {[%mdl 4096] Endgame KBB-KBN} 36. f4 Bd4 37. a4 bxa4 38. Bxa6+ Kc7 39. f5 exf5 40. exf5 Kb6 41. Bd3 f6 42. Bc2 Kb5 43. Bd3+ Kb6 44. Bc2 Kb5 45. Bd3+ Kb6 {Accuracy: White = 68%, Black = 60%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "3.3"]
[White "Wang, Hao"]
[Black "Cheparinov, Ivan"]
[Result "0-1"]
[ECO "C65"]
[WhiteElo "2735"]
[BlackElo "2667"]
[Annotator "TA"]
[PlyCount "118"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,118,9,13,7,12,0,10,9,0,0,0,0,0,0,0,0,0,0,-12,0,-17,50,50,63,68,95,91,90,-100,-85,-79,-64,-78,-85,-65,-53,-118,-36,-289,-291,-289,-290,-284,-243,-287,-275,-447,-450,-568,-275,-468,-468,-468,-460,-502,-386,-364,-235,-310,-283,-404,-395,-403,-74,-74,-74,-74,0,0,0,-27,-29,-22,-12,-18,0,0,0,0,0,0,0,-81,-85,-104,-78,-115,-100,-108,-62,-85,-79,-133,-133,-135,-132,-175,-170,-197,-96,-96,-100,-102,-114,-115,0,-1908,-1782]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. c3 O-O $146 ({Predecessor:} 5... d6 6. O-O {0-1 (24) Sjugirov,S (2664)-Sethuraman,S (2640) Baku 2015}) 6. O-O d6 7. Nbd2 Ne7 {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5} 8. d4 exd4 9. cxd4 Bb6 {The position is equal.} 10. Re1 Bg4 11. h3 Bh5 12. Qb3 d5 13. e5 Nd7 14. a4 $36 {[%mdl 2048] White is more active.} a5 15. Qe3 Re8 16. Nb3 Nc6 (16... c6 $11 17. Be2 Nf8) 17. Bxc6 $14 bxc6 18. Bd2 f6 19. e6 Re7 20. Nxa5 $2 (20. Bxa5 $16 {stays on course.} Nf8 21. Bb4 Rxe6 22. Qc3) 20... Rxa5 $17 (20... Bxa5 21. Bxa5 Nf8 22. Bb4 $16) 21. Bb4 c5 22. dxc5 $1 Bxc5 23. Bxc5 Nxc5 (23... Rxc5 $6 24. Qa3 $14) 24. Nd4 $1 {[%cal Rd4c6]} Ra6 ({But not} 24... Rxa4 $6 25. Rxa4 Nxa4 26. Nc6 $11) (24... Qa8 $1 $17 25. b4 Rxa4 26. Rxa4 Nxa4) 25. Rac1 $2 {[%mdl 8192]} (25. Nf5 $15 Bg6 26. Nxe7+ Qxe7 27. b4) 25... Nxe6 $19 ({Less strong is} 25... Nxa4 26. Rc6 $17) 26. Nc6 {[#]} Rxc6 $1 27. Rxc6 Bf7 28. Qa3 Re8 29. b4 $2 (29. Rcc1 {keeps fighting.}) 29... d4 {aiming for ...d3.} 30. b5 Qd5 (30... d3 $142 31. Qb4 Nd4) 31. Qf3 $2 (31. Rc2) 31... Qxf3 32. gxf3 d3 33. Kf1 Rd8 34. Rd1 h5 35. Rc3 Rd4 36. Ra3 (36. a5 $142 Ra4 37. b6 cxb6 38. axb6) 36... Nc5 37. a5 Bc4 $2 (37... d2 $19 {Threatens to win with ...Bc4+.} 38. Ke2 Bc4+ 39. Ke3 Nb3 40. Rxb3 {[%mdl 64] Remove Defender} Bxb3 41. Rxd2 Rxd2 42. Kxd2 Bc4) 38. a6 $17 d2+ 39. Kg2 Bxb5 (39... Bb3 $17 40. a7 Bxd1 41. a8=Q+ Kh7) 40. a7 $11 Bc6 41. a8=Q+ (41. Rc3 {keeps more tension.} Rd5 42. h4 Kf7 43. Rc2 Rf5 44. Rc3) 41... Bxa8 42. Rxa8+ {[%mdl 4096] Endgame KRR-KRN} Kf7 43. Ra7 Rd7 44. Kf1 Nb3 45. Rb7 Na5 46. Rb5 Nc4 47. Rb4 (47. Ke2 $11) 47... Rd4 $1 $17 48. Ke2 Ke6 49. Ra1 Kd7 50. Rb5 Ne5 51. Rd1 Kc6 52. Ra5 ({White should try} 52. Rb3) 52... Kb6 53. Ra8 {[#]} Nc4 $1 54. Rg8 Rd7 55. Rh8 {[#]} Re7+ (55... Kc5 $1 $19 {has better winning chances.} 56. Rxh5+ Kb4) 56. Kf1 Kc5 {Strongly threatening ...Kd4.} 57. Rd8 Kb4 {Hoping for ...Kc3.} 58. Rd3 Nb2 (58... Re5 $17 59. Rb1+ Kc5) 59. Rb1 $2 {[%mdl 8192] [#]} (59. Rd4+ $11 Nc4 60. R1xd2) 59... Re1+ $1 {[%mdl 576] Double Attack. Accuracy: White = 46%, Black = 58%.} 0-1

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "3.4"]
[White "Ponomariov, Ruslan"]
[Black "Yu, Yangyi"]
[Result "1/2-1/2"]
[ECO "C15"]
[WhiteElo "2675"]
[BlackElo "2739"]
[Annotator "TA"]
[PlyCount "48"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,48,19,16,75,57,76,37,39,36,50,56,51,41,61,54,48,51,37,44,95,41,74,37,31,15,27,0,0,0,0,0,7,0,0,0,22,0,0,0,27]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. exd5 exd5 5. Bd3 Ne7 6. Qh5 Qd7 {C01: French: Exchange Variation} (6... g6 $11 {remains equal.} 7. Qh6 Bf5) (6... Nd7 7. Bg5 c5 8. Nf3 c4 9. Be2 Nf8 10. O-O Bxc3 11. bxc3 h6 12. Bxe7 Kxe7 13. Ne5 g6 14. Qh4+ {1-0 (31) Popov,I (2592)-Savchenko,B (2562) St Petersburg 2018}) 7. h3 $16 Nbc6 8. a3 $146 ({Predecessor:} 8. Nge2 Nf5 9. O-O O-O 10. Nf4 Bd6 11. Ncxd5 Bxf4 12. Nxf4 Nb4 13. c3 Nxd3 14. Nxd3 Qb5 15. Nf4 Re8 16. g4 g6 17. Qg5 Nxd4 18. Nd5 Nf3+ {0-1 (18) Meinsohn,P (2261)-Lux,G (2041) Marcy Etoile 2007}) 8... Bxc3+ {White is slightly better.} 9. bxc3 Qe6+ 10. Ne2 Bd7 11. O-O O-O-O 12. Rb1 f6 13. Bf4 Be8 14. Qf3 Bg6 (14... g5 $14) 15. Rfe1 (15. Bh2 $16) 15... Rhe8 16. Ng3 (16. Bh2 $5 {[%cal Re2f4]}) 16... Qd7 17. Nh5 Nf5 18. Qg4 Bxh5 {The position is equal.} 19. Qxh5 g6 20. Qf3 Nh4 $132 {[%mdl 2048] Black has counterplay} 21. Qg3 Nf5 22. Qf3 Nh4 23. Qg3 Nf5 24. Qf3 Nh4 {Accuracy: White = 64%, Black = 63%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "3.5"]
[White "Andreikin, Dmitry"]
[Black "Gelfand, Boris"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2722"]
[BlackElo "2676"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,65,18,29,12,14,16,16,0,0,0,25,19,20,0,0,0,0,0,0,0,0,0,0,0,39,25,42,45,58,-658,-654,-647,-635,-1147,-1147,-1132,-1102,-29972,787,-29973,712,0,0,0,0,0,0,0,0,0,0,0,0,0]} 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 10. Kb1 (10. Bd3 c5 11. Rhe1 Be6 12. Bg5 d5 13. Qf4 Re8 14. Re5 Qc7 15. Qh4 h6 16. Bxh6 {½-½ (100) Navara,D (2739)-Gelfand,B (2655) Prague 2019}) 10... c5 11. Bd3 Bd7 12. Bg5 Re8 13. h4 h6 14. Bc4 $146 ({Predecessor:} 14. Qf4 d5 15. Ne5 Be6 16. Bb5 Rf8 17. Bxh6 gxh6 18. Qxh6 Ne4 19. Bd3 Qb6 20. Nc4 Qc6 21. Ne5 Qb6 22. Nc4 {½-½ (22) Adams,M (2283)-Canibal,J (2330) ICCF email 2016}) 14... b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 15. Bxf6 $1 Bxf6 16. Bd5 Rb8 $1 $36 {[%mdl 2048] Black fights for an advantage.} 17. Qf4 b4 18. c4 $1 Be6 19. g4 {Bc6 is the strong threat.} Qa5 20. Bxe6 Rxe6 21. Ng5 $2 {[%mdl 8192]} (21. Rhe1 $14 Be5 22. Qf5 (22. Nxe5 dxe5 23. Qe3 Ra6 $11)) 21... b3 $19 (21... hxg5 $2 22. hxg5 b3 23. axb3 $19) 22. axb3 hxg5 23. hxg5 {[#]} Bxb2 $1 {[%mdl 512]} 24. Kxb2 {[#]} Rxb3+ $3 {[%mdl 512]} 25. Kxb3 Qb4+ 26. Ka2 {[#]} Re2 $4 {[%mdl 8192] [#]} (26... d5 $1 {[%mdl 512] and life is good for Black.} 27. Qb8+ (27. cxd5 Ra6#) 27... Qxb8 28. Rh3 dxc4 29. Ra3 Re2 $1 {[%mdl 512]} 30. Rc1 Qb4 31. g6 fxg6 32. f3 c3 33. Rb3 Qf4 $1 {[%mdl 576] Double Attack} 34. Rxc3 Qxc1 35. Kb3 Qb1+ 36. Kc4 Rd2 37. Rd3 Qxc2+ {[%mdl 64] Double Attack} 38. Rc3 Rd4+ 39. Kxc5 Qxc3+ {[%mdl 64] Double Attack} 40. Kb5 Qc4+ 41. Ka5 Rd5#) 27. Qf5 $2 (27. Qc1 $1 $18) 27... Qa4+ $11 {The position is equal.} 28. Kb2 Qb4+ 29. Kc1 Qa3+ 30. Kb1 {Qc8+ would kill now.} Qb4+ {[%mdl 64] Double Attack} 31. Kc1 {White threatens Qc8+ and mate.} Qa3+ 32. Kb1 {Threatening mate with Qc8+.} Qb4+ {[%mdl 64] Double Attack} 33. Kc1 {Accuracy: White = 45%, Black = 78%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "3.6"]
[White "Le, Quang Liem"]
[Black "Leko, Peter"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "2704"]
[BlackElo "2674"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,107,0,9,12,14,6,8,8,0,0,3,-2,10,2,13,0,7,3,0,0,0,0,0,0,0,0,0,0,10,0,28,27,45,50,51,46,64,64,75,63,75,75,114,64,80,25,26,0,0,0,6,6,148,150,150,150,141,159,224,223,345,322,365,360,341,331,389,388,383,341,337,285,528,527,512,474,828,832,795,503,469,333,309,269,257,171,167,159,798,741,2059,1146,29976,29977,29972,29978,5165,1760]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. O-O Nd4 6. Nxd4 Bxd4 7. c3 {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5} Bb6 8. Na3 c6 9. Ba4 {The position is equal.} d6 10. Nc4 Bc7 {[#] And now ...b5 would win.} 11. Bb3 a5 12. a4 Be6 $146 ({Predecessor:} 12... O-O 13. Bg5 h6 14. Bh4 Be6 {0-1 (55) Karjakin,S (2753)-Nakamura,H (2746) Kolkata 2018}) 13. f4 exf4 14. Bxf4 d5 15. Bxc7 Qxc7 16. exd5 Nxd5 17. d4 O-O {next ...b5 is good for Black.} 18. Qf3 Rad8 19. Nd2 c5 20. c4 Ne7 21. d5 $1 {[%cal Rd5e6]} Bf5 22. Rae1 Bg6 23. Qc3 Nc8 24. Bc2 Bxc2 25. Qxc2 Rde8 26. Ne4 {Strongly threatening Ng5.} Nd6 27. b3 b6 28. Ng5 $40 {[%mdl 128] White mounts an attack.} (28. g3 $16) 28... g6 $11 29. Qf2 h6 30. Nf3 Rxe1 31. Rxe1 Re8 (31... Qd8 $11 {keeps the balance.}) 32. Rxe8+ $16 Nxe8 33. Qe3 Nd6 34. Qxh6 Qe7 {[#]} (34... Ne4 $16 {keeps fighting.} 35. g4 Qd6) 35. Qg5 $1 $18 {[%cal Rg5e7]} Qc7 (35... Qxg5 $142 36. Nxg5 f6) 36. Qe5 Qd7 37. h3 Qd8 38. h4 f6 39. Qe6+ Kg7 40. Kf2 Nf7 41. g3 Nd6 $2 (41... Qc7 42. Nd2 Qd8) 42. g4 Nf7 43. g5 fxg5 (43... Nd6 $142 44. h5 gxh5) 44. hxg5 Nd6 45. Qe5+ ({Stronger than} 45. Ne5 Qxg5 46. Nf3 (46. Qxd6 Qd2+ 47. Kg1 Qe1+ 48. Kg2 Qd2+ 49. Kh3 Qe3+ 50. Kg4 Qe4+ 51. Kg3 Qe1+ 52. Kh3 Qe3+ 53. Kh2 Qd2+ 54. Kh1 Qe1+ 55. Kg2 Qd2+ 56. Kh3 Qe3+ $11) 46... Qf6 $11) 45... Kh7 46. Qh2+ Kg8 47. Qh6 Qe8 48. Nh4 Ne4+ 49. Kg2 Nd2 $2 (49... Qf7 $16 50. Qxg6+ Qxg6 51. Nxg6 Nxg5) 50. Qxg6+ Qxg6 51. Nxg6 Nxb3 52. d6 Nd4 53. d7 Ne6 54. Kg3 {Accuracy: White = 70%, Black = 40%.} (54. Ne5 $142 Nd8 55. Kf3) 1-0

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "3.7"]
[White "Jones, Gawain C B"]
[Black "Rapport, Richard"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "2702"]
[BlackElo "2736"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,108,-18,-12,-18,-32,-27,-35,-34,-23,-37,-33,-22,-16,-47,-13,0,-4,-85,-86,-118,-120,-114,-67,-75,-3,-24,-26,-27,-28,-68,16,-33,62,-30,-45,-109,-98,-84,-58,-45,-57,-74,0,-66,-69,-134,-143,-128,-122,-253,-247,-306,-188,-416,-335,-308,-272,-327,-321,-261,-283,-413,-385,-423,-418,-474,-474,-474,-469,-459,-421,-372,-330,-327,-304,-743,-724,-735,-702,-680,-642,-596,-462,-1048,-952,-604,-603,-29971,-601,-965,-972,-29975,-29976,-29977,-29978,-29978,-29979,-29979,-29979,-29984,-29985]} 1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. g4 (5. Bc4 Be7 6. a4 O-O 7. O-O c6 8. Re1 a5 9. h3 Nb6 10. Ba2 Nfd7 11. Be3 exd4 12. Bxd4 Nc5 13. Bxc5 dxc5 14. Qe2 Qd6 15. Rad1 Qg6 16. Ne5 Qg5 17. Nf3 Qg6 18. Ne5 Qg5 19. Nf3 Qg6 20. Ne5 Qg5 {½-½ (20) Fressinet,L (2650)-Ponomariov,R (2663) Germany 2019}) 5... Nxg4 6. Rg1 {C41: Philidor Defence} Ngf6 7. Be3 c6 8. Qd2 {Black is slightly better.} b5 $146 {[%cal Bb7b5,Bb5b4][%mdl 32]} ({Predecessor:} 8... Qa5 9. O-O-O {½-½ (29) Sukovic,A (1926)-Tomic,A (2277) Pljevlja 2015}) 9. O-O-O Qa5 $1 {Strongly threatening ...b4.} 10. dxe5 dxe5 11. Bh3 b4 12. Nb1 Qc7 13. Bxd7+ (13. Qe2 $11 {remains equal.}) 13... Nxd7 $17 14. Nh4 g6 15. f4 Nb6 {...Nc4 is the strong threat.} 16. b3 $1 Be7 (16... c5 $17 {With the idea ...Bb7.} 17. fxe5 Be6) 17. Nf3 $11 c5 18. Nxe5 Bb7 19. Qe2 {White wants to play Qb5+.} c4 (19... Bxe4 $15 20. Qb5+ Kf8) 20. Bxb6 ({Much worse is} 20. bxc4 f6 $17) 20... Qxb6 ({Black should try} 20... axb6 $15 21. Rd7 (21. bxc4 f6 $19) 21... Qc5) 21. Qxc4 (21. Nxc4 $14 Qf6 22. Rgf1) 21... O-O $1 $36 {[%mdl 2048] Black has the initiative.} 22. Rg3 ({White should play} 22. Nd2 $15) 22... Rac8 23. Qe2 Rfd8 24. Rxd8+ Rxd8 25. Rd3 Kg7 (25... Rxd3 $17 26. Qxd3 Qg1+ 27. Kb2 Bc5) 26. Rxd8 (26. Nd2 $11) 26... Bxd8 $15 27. Qd3 (27. Nc4 $15 Qg1+ 28. Kb2) 27... Qg1+ $1 $17 {[%mdl 1024] Black has strong compensation.} 28. Kb2 {[#]} Bb6 $1 {[%cal Rb6d4]} 29. a3 (29. Nf3 $17 Qg4 30. Nbd2) 29... Qd4+ $19 (29... Qxh2 30. Nxf7 Qxf4 31. Nd6 $17) 30. c3 Qf2+ (30... Qxe4 31. Qxe4 Bxe4 32. Nd2 $17) 31. Qd2 $2 (31. Nd2 {only move.}) 31... Qxd2+ 32. Nxd2 {[%mdl 4096] Endgame KBB-KNN} Be3 33. Nec4 bxc3+ ({Less strong is} 33... Bxf4 34. axb4 Bxh2 35. Kc2 $19) 34. Kxc3 Bxf4 35. h4 (35. h3 {was called for.}) 35... h5 36. Kd4 g5 37. hxg5 {[#] If only White now had time for Nf3....} h4 $1 {[%cal Rh4h3]} 38. Nf3 h3 39. a4 Bc8 {And now ...Bg4 would win.} 40. Ne3 h2 41. Nxh2 Bxh2 42. Nd1 $2 (42. Nf5+ Bxf5 43. exf5) 42... Bg1+ 43. Ke5 Kg6 44. Nc3 Kxg5 45. b4 Be6 46. a5 (46. Nd5 $142 Bg4 47. Kd6) 46... Bc4 47. Nd5 Bf2 48. Kd6 Bd3 (48... Bxd5 $142 49. exd5 Be1 50. Kc5 f5 51. d6 Kf6 52. d7 Ke7 53. Kc4 Kxd7 54. b5 Bxa5 55. Kc5 Kc7 56. Kc4 Kb6 57. Kd4 Kxb5 58. Ke5 Bc7+ 59. Kxf5 a5 60. Ke6 Kc6 61. Kf5 a4 62. Ke6 a3 63. Kf5 a2 64. Ke4 a1=Q 65. Ke3 Qe1+ 66. Kf3 Qe5 67. Kf2 Qe4 68. Kf1 Qf3+ 69. Kg1 Qe2 70. Kh1 Qh2#) 49. e5 Bg3 50. Ke7 Bxe5 {Black mates.} 51. Kxf7 {[#]} Bc4 $1 52. Ke6 Bg3 53. b5 Kg4 54. b6 a6 {Accuracy: White = 26%, Black = 63%.} 0-1

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "3.8"]
[White "Bu, Xiangzhi"]
[Black "Mamedov, Rauf"]
[Result "0-1"]
[ECO "D37"]
[WhiteElo "2729"]
[BlackElo "2650"]
[Annotator "TA"]
[PlyCount "106"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,108,20,20,22,18,13,19,20,16,24,17,8,20,15,0,0,0,10,-13,-15,-12,-8,-27,-22,-19,0,0,-7,-10,0,-41,-36,-41,-10,-8,-10,-17,-14,-17,-21,-49,-47,-55,-50,-59,-72,-58,-58,-100,-93,-90,-90,-67,-70,-93,-59,-52,-26,-29,-34,-48,-48,-45,-37,-88,-72,-98,-97,-156,-37,-150,-150,-136,-95,-87,-87,-92,-92,-99,-53,-49,-35,-143,-56,-222,-217,-224,-215,-239,-243,-631,-621,-5323,-1070,-29996,-29997,-29998,-29999]} 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Nbd7 5. cxd5 exd5 6. Bg5 c6 7. e3 h6 {D35: Queen's Gambit Declined: Exchange Variation} (7... Be7 8. Bd3 O-O 9. Qc2 Re8 10. O-O Nf8 11. h3 g6 12. Bf4 Ne6 13. Bh2 Ng7 14. Qb3 Qb6 15. Nd2 Bf5 16. Be2 h5 17. Rfc1 Ne6 18. a3 h4 19. Na4 Qxb3 20. Nxb3 a5 21. Nd2 {½-½ (36) Wang,H (2722)-Naiditsch,A (2721) Douglas 2018}) 8. Bh4 g5 9. Bg3 Nh5 {The position is equal.} 10. Bd3 Nxg3 11. hxg3 Bg7 12. Qc2 Qe7 $146 ({Predecessor:} 12... Nb6 13. O-O-O Be6 14. Nd2 {0-1 (46) Chatalbashev,B (2547)-Petkov,V (2474) Pleven 2016}) 13. O-O-O Nb6 14. Kb1 Be6 15. Nd2 O-O-O 16. Nb3 Kb8 17. Rc1 h5 18. Nc5 h4 19. gxh4 gxh4 20. Ne2 {[%cal Bc3e2,Be2g3,Bg3f5,Bf5e3][%mdl 32]} Bc8 21. g3 Qf6 22. Rcf1 Bf8 (22... h3 {is more complex.} 23. Rh2 Bf8 24. Rfh1 Bd6 25. a4 Bg4) 23. gxh4 Rxh4 24. Rxh4 Qxh4 25. Ng3 Qf6 26. Nb3 Bd6 27. Nf5 Bc7 28. a3 Rh8 29. Rg1 Nc4 30. e4 dxe4 31. Bxe4 Nb6 32. Ne3 Re8 33. Rd1 Qf4 34. Nc5 Nd7 {Strongly threatening ...Nxc5.} 35. Nxd7+ Bxd7 36. Bf5 Rxe3 37. Bxd7 Rf3 38. Rd2 (38. Re1 $15 Rxf2 39. Re8+ Bd8 40. Qc3 (40. Rxd8+ $2 Kc7 $19)) 38... a6 $17 39. Ka2 Ba5 40. Re2 (40. Rd1 $142) 40... Qd6 (40... Qxd4 $17 41. Re8+ Kc7) 41. Be8 (41. Re8+ $15 Ka7 42. Qc5+ Qxc5 43. dxc5) 41... Qd5+ 42. Kb1 Rh3 {White must now prevent ...Rh1+.} 43. Qc5 Rh1+ 44. Kc2 {With the idea Qxd5.} Qf3 45. Qe5+ Bc7 46. Qe4 Qh5 47. Bd7 ({Better is} 47. Rd2 $1 $15) 47... Rg1 (47... Rh4 $1 $17 {[%cal Rh4e4]} 48. Qe8+ Ka7) 48. Qd3 $2 {[#]} (48. Rd2 $15) 48... Qd5 $1 $19 49. Bf5 {[#]} Bf4 $1 {[%csl Gf4][%cal Rg1c1]} ({Don't play} 49... Qa2 50. Rd2) 50. b3 Qa5 $40 {[%mdl 128] Black goes for the king.} 51. a4 $2 (51. b4 Qd5 52. Kb2 Bc1+ 53. Kc3 Bxa3 54. Be4 Rc1+ 55. Kd2 Qa2+ 56. Ke3) 51... Qb4 52. Qf3 Rc1+ (52... Qxd4 $142 53. Qxf4+ Qxf4) 53. Kb2 Qxd4+ 0-1

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "4.1"]
[White "Cheparinov, Ivan"]
[Black "Dominguez Perez, Leinier"]
[Result "1/2-1/2"]
[ECO "E06"]
[WhiteElo "2667"]
[BlackElo "2750"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,103,7,14,19,13,7,13,3,0,13,7,5,10,15,10,10,10,9,9,9,14,12,6,15,0,9,14,14,0,0,0,0,0,0,0,0,-11,8,8,6,5,9,0,10,9,18,19,22,17,39,18,46,41,48,47,75,77,62,31,37,33,60,60,82,77,183,50,100,59,60,60,115,60,60,60,60,60,52,0,106,45,45,8,8,0,48,8,8,0]} 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 c5 9. dxc5 Bxc5 {E05: Open Catalan: 5 Nf3 Be7} 10. Qxc4 b6 11. Ne5 Ra7 $1 12. Nd3 Be7 13. Bf4 Bb7 14. Bxb7 Rxb7 {[#]} 15. Nd2 $146 ({Predecessor:} 15. Rc1 Nd5 16. Bxb8 b5 17. axb5 axb5 {½-½ (39) Aronian,L (2794)-Hou,Y (2654) Karlsruhe/Baden-Baden 2018}) 15... Nd5 16. Bxb8 b5 17. axb5 axb5 18. Qb3 Qxb8 19. Rfc1 Rc8 20. Ne4 h6 21. Rxc8+ Qxc8 22. Rc1 Rc7 23. Rxc7 Nxc7 24. Qc3 Qb7 25. Nd2 Nd5 26. Qc2 Qc7 (26... Nb4 {is interesting.} 27. Nxb4 Bxb4 28. Qd3 Be7 29. Nf3 Bf6) 27. Qxc7 Nxc7 $11 {[%mdl 4096] Endgame KBN-KNN} 28. f4 Kf8 29. Kf2 Ke8 30. e4 Bd6 31. Nb3 Kd7 32. Nd4 Kc8 33. Kf3 Kb7 34. e5 Bf8 35. g4 Kb6 36. f5 {Black must now prevent fxe6.} Bc5 37. Ne2 Kc6 38. Ke4 Ba7 39. h4 Nd5 40. Nef4 Nc7 (40... exf5+ $16 41. gxf5 Nxf4 42. Nxf4 Bc5) 41. Nh5 (41. f6 $1 $18 {[%cal Rf6g7]} Ne8 42. Nxe6 $1 {[%mdl 512]} gxf6 43. Nd8+ {[%mdl 64] Double Attack} Kd7 44. Nxf7) 41... Ne8 42. f6 g6 $1 {[%cal Rg6h5]} 43. Nhf4 {aiming for Nxg6!} Kd7 $1 44. h5 (44. Nxg6 $1 $16 fxg6 45. Nf4) 44... gxh5 $14 45. gxh5 Nc7 46. Nh3 Nd5 {[#]} 47. Nhf2 (47. Ng5 $1 $14 {[%mdl 512]} Ke8 (47... hxg5 48. h6) 48. Nf3) 47... Be3 {[#]} (47... Ne3 $1 $11 {remains equal.}) 48. Ng4 (48. Kf3 $1 $16) 48... Bg5 49. Nc5+ Kc6 50. Nd3 Kd7 $1 51. Kd4 Kc6 52. Ke4 {Accuracy: White = 50%, Black = 50%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "4.2"]
[White "Fedoseev, Vladimir"]
[Black "Vidit, Santosh Gujrathi"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "2683"]
[BlackElo "2707"]
[Annotator "ChessBase"]
[PlyCount "125"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "900+10"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} g6 {[%emt 0:00:27]} 3. b3 {[%emt 0:00:41]} Bg7 {[%emt 0:00:22]} 4. Bb2 {[%emt 0:00:01]} d5 {[%emt 0:00:52]} 5. e3 {[%emt 0:00:15]} O-O {[%emt 0:00:30]} 6. Be2 {[%emt 0:01:04]} c5 {[%emt 0:00:42]} 7. dxc5 {[%emt 0:00:15]} Qa5+ {[%emt 0:00:03]} 8. Nbd2 {[%emt 0:00:02]} Ne4 {[%emt 0:00:16]} 9. Bxg7 {[%emt 0:02:09]} Kxg7 {[%emt 0:00:01]} 10. Qc1 {[%emt 0:01:26]} Nc6 {[%emt 0:07:17]} 11. a3 {[%emt 0:03:44]} Qxc5 {[%emt 0:00:42]} 12. Nxe4 {[%emt 0:00:22]} dxe4 {[%emt 0:00:01]} 13. Qb2+ {[%emt 0:00:01]} f6 {[%emt 0:00:07]} 14. Nd2 {[%emt 0:00:08]} Qg5 {[%emt 0:00:09]} 15. g4 {[%emt 0:01:46]} Qe5 {[%emt 0:03:01]} 16. O-O-O {[%emt 0:01:39]} Qxb2+ {[%emt 0:00:17]} 17. Kxb2 {[%emt 0:00:01]} f5 {[%emt 0:00:01]} 18. gxf5 {[%emt 0:01:13]} Bxf5 {[%emt 0:00:11]} 19. h4 {[%emt 0:00:35]} Rad8 {[%emt 0:00:12]} 20. h5 {[%emt 0:00:19]} g5 {[%emt 0:00:04]} 21. h6+ {[%emt 0:00:01]} Kf6 {[%emt 0:00:19]} 22. Nf1 {[%emt 0:00:08]} Rxd1 {[%emt 0:00:07]} 23. Bxd1 {[%emt 0:00:01]} Bg6 {[%emt 0:00:44]} 24. Ng3 {[%emt 0:00:06]} Ne5 {[%emt 0:00:14]} 25. Kc3 {[%emt 0:00:24]} g4 {[%emt 0:00:08]} 26. Ne2 {[%emt 0:00:35]} Rc8+ {[%emt 0:00:44]} 27. Kb2 {[%emt 0:00:09]} Nf3 {[%emt 0:00:09]} 28. Nf4 {[%emt 0:00:18]} e5 {[%emt 0:00:08]} 29. Nd5+ {[%emt 0:00:04]} Kg5 {[%emt 0:00:03]} 30. c4 {[%emt 0:00:07]} Rf8 {[%emt 0:00:10]} 31. Kc3 {[%emt 0:01:32]} Nh4 {[%emt 0:00:15]} 32. Rh2 {[%emt 0:00:17]} Nf5 {[%emt 0:00:04]} 33. Bc2 {[%emt 0:00:10]} Nxh6 {[%emt 0:00:04]} 34. Ne7 {[%emt 0:00:01]} Nf5 {[%emt 0:01:43]} 35. Nxg6 {[%emt 0:00:05]} Kxg6 {[%emt 0:00:05]} 36. Bxe4 {[%emt 0:00:14]} b6 {[%emt 0:00:01]} 37. b4 {[%emt 0:00:42]} h5 {[%emt 0:00:08]} 38. c5 {[%emt 0:00:02]} bxc5 {[%emt 0:00:01]} 39. bxc5 {[%emt 0:00:01]} Kg5 {[%emt 0:00:06]} 40. Bxf5 {[%emt 0:00:36]} Rxf5 {[%emt 0:00:51]} 41. Kc4 {[%emt 0:00:01]} h4 {[%emt 0:00:04]} 42. c6 {[%emt 0:00:01]} Rf8 {[%emt 0:00:25]} 43. Kd5 {[%emt 0:00:04]} g3 {[%emt 0:00:10]} 44. fxg3 {[%emt 0:00:13]} hxg3 {[%emt 0:00:00]} 45. Rh1 {[%emt 0:00:07]} Kg4 {[%emt 0:00:06]} 46. c7 {[%emt 0:00:28]} g2 {[%emt 0:00:05]} 47. Rc1 {[%emt 0:00:23]} Kf3 {[%emt 0:00:05]} 48. Kxe5 {[%emt 0:00:14]} Kxe3 {[%emt 0:00:23]} 49. Kd6 {[%emt 0:00:05]} Kf2 {[%emt 0:00:18]} 50. Kd7 {[%emt 0:00:01]} Rf7+ {[%emt 0:00:13]} 51. Kc6 {[%emt 0:00:04]} Rf8 {[%emt 0:00:08]} 52. Kb7 {[%emt 0:00:01]} a5 {[%emt 0:00:13]} 53. c8=Q {[%emt 0:00:10]} Rxc8 {[%emt 0:00:01]} 54. Kxc8 {[%emt 0:00:01]} g1=Q {[%emt 0:00:18]} 55. Rxg1 {[%emt 0:00:00]} Kxg1 {[%emt 0:00:01]} 56. Kb7 {[%emt 0:00:01]} Kf2 {[%emt 0:00:02]} 57. Kb6 {[%emt 0:00:03]} a4 {[%emt 0:00:14]} 58. Kb5 {[%emt 0:00:02]} Ke3 {[%emt 0:00:02]} 59. Kxa4 {[%emt 0:00:01]} Kd4 {[%emt 0:00:02]} 60. Kb5 {[%emt 0:00:00]} Kd5 {[%emt 0:00:04]} 61. a4 {[%emt 0:00:01]} Kd6 {[%emt 0:00:01]} 62. Kb6 {[%emt 0:00:01]} Kd7 {[%emt 0:00:01]} 63. Kb7 {[%emt 0:00:01]} 1-0

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "4.3"]
[White "Gelfand, Boris"]
[Black "Le, Quang Liem"]
[Result "1/2-1/2"]
[ECO "A29"]
[WhiteElo "2676"]
[BlackElo "2704"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,94,16,14,13,20,23,24,17,18,23,27,12,23,23,11,0,-4,-19,-14,-17,-18,-27,-9,-8,-8,-10,-3,-8,-13,-10,-15,-18,-17,-32,-37,-28,-30,-20,-18,-19,-22,-39,-32,-47,0,0,0,0,0,-25,0,0,0,-16,0,-54,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nb6 7. O-O Be7 8. a3 O-O 9. b4 Re8 10. d3 Bf8 11. Bg5 {A29: English Opening: Four Knights Variation with 4 g3} f6 12. Be3 Be6 13. Ne4 {White has an edge.} Nd5 $146 ({Predecessor:} 13... Kh8 14. Bc5 Bd5 15. Bxf8 Rxf8 16. Nc5 Rb8 17. Rc1 Qe7 18. e4 Bf7 {1-0 (39) Dubov,D (2703)-Kevlishvili,R (2451) St Petersburg 2018}) 14. Bc5 Bd6 15. Qc2 Rc8 16. Rfc1 Qd7 17. Ned2 b6 18. Bxd6 cxd6 19. Qb2 b5 20. Rc2 Nb6 21. Rac1 Ne7 {[%cal Bc6e7,Be7d5,Bd5c3][%mdl 32]} 22. d4 Na4 23. Qb1 Nd5 24. Rxc8 Rxc8 25. Rxc8+ Qxc8 26. e4 Ndc3 27. Qe1 a6 28. Bf1 Kf8 29. d5 Bd7 30. Nb3 f5 31. Nfd2 Nxe4 32. Nxe4 fxe4 33. Qxe4 Kg8 34. Qh4 {Strongly threatening Qe7.} Nb6 35. Bd3 g6 36. Be4 Nc4 37. Na5 (37. Qg5 $11) 37... Nxa5 (37... Nd2 $1 $15 38. Nc6 Qf8) 38. bxa5 $11 {The position is equal.} Bh3 {[%cal Rc8c1]} 39. Bc2 Qxc2 {[%cal Rc2d1]} 40. Qxh3 {[%mdl 4096] Endgame KQ-KQ} Qd1+ {[%mdl 64] [#] Double Attack} 41. Kg2 {Hoping for Qc8+.} Qxd5+ 42. Kg1 Qc5 {Black wants to play ...Qc1+.} 43. Qe6+ Kg7 44. Qe7+ Kg8 45. Qe8+ Kg7 46. Qe7+ Kg8 47. Qe8+ Kg7 {Accuracy: White = 71%, Black = 61%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "4.4"]
[White "Yu, Yangyi"]
[Black "Korobov, Anton"]
[Result "0-1"]
[ECO "D43"]
[WhiteElo "2739"]
[BlackElo "2687"]
[Annotator "TA"]
[PlyCount "130"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,130,30,29,18,4,27,20,33,27,30,30,32,33,21,21,53,14,17,13,12,5,10,-10,15,-17,12,-50,-55,-59,-48,-76,-39,-30,-10,-17,-14,-19,8,8,53,52,52,52,53,53,53,53,52,50,51,50,33,48,40,50,193,191,305,271,242,163,418,440,435,434,409,395,417,416,431,426,401,306,306,306,306,306,306,306,306,306,270,168,171,8,8,8,8,8,8,-935,-914,-600,-29962,-29962,-29965,-29965,-29964,-29961,-29965,-29962,-29966,-29975,-29976,-29974,-29977,-29977,-29978,-29978,-29979,-29978,-29980,-29980,-29980,-29980,-29981,-29982,-29981]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bxf6 Qxf6 7. e3 Nd7 8. Be2 g6 {D43: Semi-Slav: 5 Bg5 h6} (8... dxc4 9. O-O Bd6 10. Bxc4 Qe7 11. Rc1 O-O 12. Ne4 Bc7 13. Bb3 Kh8 14. Nc5 Nxc5 15. Rxc5 Rd8 16. Qc2 Bd7 17. Qe4 Bd6 18. Rc3 Rac8 19. Rfc1 Be8 20. h3 Rc7 21. a3 Rdc8 22. Bc2 g6 23. Nd2 c5 24. Bb3 {½-½ (24) Mamedyarov,S (2817)-Dubov,D (2703) St Petersburg 2018}) 9. O-O Bg7 10. cxd5 exd5 {The position is equal.} 11. b4 {[%cal Bb2b4,Bb4b5][%mdl 32]} a6 12. a4 O-O 13. b5 a5 14. Rc1 $146 ({Predecessor:} 14. bxc6 bxc6 15. Rb1 Rd8 16. Qc2 Nb8 17. Rb6 Qe7 18. Rc1 Be6 {0-1 (18) Schmalz,P (2191)-Elias,H (2125) ICCF email 2017}) 14... Re8 15. Qb3 Qd6 16. Rfd1 Nf8 17. Nb1 Bd7 18. Qa3 Qb4 {[%cal Rc6b5]} 19. Ne1 (19. Qa2 {is interesting.} Qd6 20. Nc3 Rac8 21. h3 Rb8 22. Qd2) 19... Ne6 {[%cal Re6d4] Hoping for ...Nxd4!} 20. Nc2 (20. Qa2 $11) 20... Qxa3 $15 21. Nbxa3 Bf8 22. Rb1 c5 23. Bf3 cxd4 24. Bxd5 dxe3 {aiming for ...e2.} 25. Bxb7 exf2+ 26. Kf1 Rad8 {[#]} 27. Rxd7 $1 {[%mdl 576] Remove Defender} Rxd7 28. Bc6 Red8 29. Bxd7 Rxd7 30. b6 Nd8 31. Nc4 ({But not} 31. Kxf2 Rd2+ 32. Ke3 Rxg2 $15) 31... Nb7 $1 32. Kxf2 Rd3 33. Ke2 Rc3 34. N2e3 Bb4 {[#]} (34... f5 $14) 35. Rd1 $1 $18 Rb3 (35... Bf8 {was called for.} 36. Rd7 Nc5) 36. Rd7 Nc5 37. Rc7 {Nd5 is the strong threat.} Ne6 $2 (37... Nxa4 {was necessary.} 38. b7 Bf8 39. Nxa5 Rb2+ 40. Rc2 Rxc2+ 41. Nxc2 Bd6) 38. Rc8+ Bf8 39. Nd5 Kg7 40. Nxa5 Rb2+ 41. Kd3 Nc5+ 42. Rxc5 Bxc5 {[%mdl 4096] Endgame KRB-KNN} 43. b7 Bd6 44. Nc4 Rxb7 45. Nxd6 Rb2 46. a5 Rxg2 47. Nc3 Rxh2 48. a6 Rh1 {[#]} 49. Ne8+ $2 (49. Kc4 $1 $18 {[%cal Rc4b5]} Ra1 50. Kb5 Rxa6 51. Kxa6) 49... Kf8 $132 {[%mdl 2048] Black has counterplay} 50. Nc7 {next a7 is good for White.} Ra1 51. N3b5 h5 $1 {[%cal Rh5h4] White must now prevent ...h4.} 52. a7 $2 {[%mdl 8192]} (52. Ke2 $11) 52... h4 $19 53. Ke2 h3 54. Kf2 {Black mates.} h2 55. a8=Q+ Rxa8 56. Kg2 Ra2+ 57. Kh1 g5 58. Nd6 g4 59. Nf5 Rf2 60. Ng3 f5 61. Nd5 f4 62. Nxf4 Rxf4 63. Kxh2 Kf7 64. Kg2 Kg6 65. Nf1 Ra4 {Accuracy: White = 57%, Black = 60%.} 0-1

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "4.5"]
[White "Rapport, Richard"]
[Black "Andreikin, Dmitry"]
[Result "0-1"]
[ECO "C23"]
[WhiteElo "2736"]
[BlackElo "2722"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,84,-7,0,-2,0,-14,-14,-23,-24,-27,21,-23,-28,-27,0,0,0,0,0,0,20,-9,-3,-24,-32,-18,-14,-102,-102,-173,-166,-167,-151,-160,-163,-159,-159,-162,-150,-159,-148,-161,-158,-150,-144,-239,-85,-297,-171,-147,-143,-306,-47,-302,-294,-648,-665,-642,-639,-1063,-375,-605,-410,-406,-383,-693,-668,-1460,-1384,-1226,-1194]} 1. e4 e5 2. Bc4 Nc6 3. d3 Nf6 4. Nc3 Bb4 5. Nge2 d5 6. exd5 Nxd5 7. O-O Be6 8. Bxd5 Bxd5 9. f4 {C28: Vienna Game: 2...Nf6 3 Bc4 Nc6} O-O (9... f6 10. fxe5 Nxe5 11. Nxd5 Qxd5 12. Nf4 Qf7 13. c3 Bd6 14. d4 O-O-O 15. Qa4 a6 16. dxe5 Bc5+ {½-½ (79) Mons,L (2554)-Ragger,M (2701) Austria 2019}) 10. f5 Bxc3 11. bxc3 {The position is equal.} f6 $1 12. Ng3 b5 13. Ba3 $146 ({Predecessor:} 13. Qg4 Kh8 14. a4 a6 15. Be3 Qd7 16. Rfb1 Rab8 17. axb5 axb5 {0-1 (44) Lim,Y (2330)-Borisek,J (2508) Turin 2006}) 13... Rf7 14. Bc5 Nb8 15. a4 Nd7 16. Be3 a6 17. Qg4 Bc6 18. axb5 axb5 19. Rfb1 Nb6 20. Bxb6 cxb6 21. Qb4 (21. Rxa8 $11 {keeps the balance.} Qxa8 22. Ne4) 21... Ra5 $17 22. Nf1 {[#]} (22. Qb2 $17 {was called for.}) 22... Bxg2 $1 $19 {[%mdl 512]} 23. Ne3 (23. Kxg2 Qa8+) 23... Bc6 24. Rxa5 bxa5 25. Qc5 Be8 26. c4 b4 27. Nd5 Rb7 $1 28. Kf2 h6 29. Ke3 Kh7 30. Kd2 (30. Qf8 $17 Rf7 31. Qc5) 30... Qd7 $2 (30... Bf7 $1 $19 {and Black stays clearly on top.} 31. Ra1 Qd7 32. Rxa5 b3 33. cxb3 Rxb3) 31. Rf1 $2 (31. Qxa5 $17 {was the only chance.} Qxf5 32. Qc5) 31... b3 (31... Bf7 $142 32. Qxa5 e4 $1 {[%mdl 512]} 33. Nxb4 (33. dxe4 $2 Qd6 $19) 33... exd3 34. Nxd3 Bxc4) 32. cxb3 Rxb3 33. Qxa5 $2 {[#]} (33. Qe7 $17 Qxe7 34. Nxe7) 33... Bf7 $2 ({Black should try} 33... e4 $1 $19 {[%mdl 512]} 34. dxe4 Qd6 $1 {[%mdl 512]}) 34. Kc2 $2 {[%mdl 8192]} (34. Qc7 $1 $15 Qxc7 35. Nxc7) 34... Rb7 {White must now prevent ...Bxd5.} 35. Kd2 $2 (35. Nc3) 35... Rb2+ 36. Kc3 Qb7 {[%csl Gb2][%cal Rb7b3]} 37. Nb4 {[#]} Rxh2 $2 (37... Qg2 $1 {[%csl Gb2][%cal Rg2d2][%mdl 512]} 38. Rd1 Qf2) 38. Rg1 $2 (38. Ra1 Qc8 39. Qa8 Qxf5 40. Qe4 Qxe4 41. dxe4) 38... Qf3 {...Qf4 is the strong threat.} 39. Qa7 Qe2 {[%csl Gh2][%cal Re2b2]} 40. Qa1 $2 (40. Rb1 Be8 41. Kb3) 40... e4 {Hoping for ...exd3.Black is clearly winning.} 41. Rg3 exd3 42. Rxd3 Rh4 {Accuracy: White = 37%, Black = 59%.} 0-1

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "4.6"]
[White "Mamedov, Rauf"]
[Black "Ponomariov, Ruslan"]
[Result "0-1"]
[ECO "C44"]
[WhiteElo "2650"]
[BlackElo "2675"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,110,0,0,0,0,0,0,0,-18,-12,-45,-23,-66,-37,-37,-39,-45,-18,-20,0,0,10,9,8,7,18,0,65,6,6,11,7,8,9,7,53,8,0,-36,-37,-72,-57,-71,-64,-68,-68,-61,-49,-186,-63,-120,-120,-120,-120,-119,-70,-68,-72,-76,-70,-75,-75,-80,-77,-78,-87,-181,-148,-150,-114,-175,-175,-265,-261,-316,-220,-452,-414,-418,-266,-372,-283,-684,-551,-1188,-1190,-1032,-971,-29981,-29982,-29982,-29983,-29983,-29984,-29978,-6786]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. Ng5 Nh6 6. Nxf7 Nxf7 7. Bxf7+ Kxf7 8. Qh5+ g6 9. Qxc5 d5 {C44: Ponziani Opening and Scotch Gambit} 10. O-O dxe4 11. c3 Bf5 {The position is equal.} (11... Be6 12. Bf4 Qd5 13. cxd4 Qxd4 14. Qc1 Bc4 15. Re1 Bd3 16. Nc3 Rhe8 17. Bxc7 {½-½ (69) Grischuk,A (2766)-Karjakin,S (2773) Saint Louis 2018}) 12. Bf4 Re8 13. Na3 {[%cal Bb1a3,Ba3c4,Bc4d2,Bd2e4,Be4g5][%mdl 32]} a6 $146 ({Predecessor:} 13... d3 14. Nb5 Rc8 15. Nxa7 Nxa7 16. Qxa7 {1-0 (16) Fuentes,R (2215)-Steger,A (2029) San Francisco 2014}) 14. Rad1 {[%cal Rc3d4]} d3 15. Nc4 Qe7 16. Qe3 Kg8 {Black wants to play ...Bg4.} 17. Qg3 Be6 18. Nd2 Bxa2 19. Rfe1 Qf7 20. Nxe4 Bd5 21. Ng5 Rxe1+ 22. Rxe1 Re8 $1 $132 {[%cal Re8e1][%mdl 2048] Black is not holding back} 23. Rxe8+ Qxe8 {[%cal Re8e1]} 24. Qxd3 Qe1+ 25. Qf1 Qxf1+ 26. Kxf1 $11 {[%mdl 4096] Endgame KBN-KBN} Na5 27. Bxc7 Nc4 28. b4 b6 $1 29. Ke2 a5 $1 {[%cal Ra5a4]} 30. bxa5 bxa5 31. Kd3 a4 {...a3 is the strong threat.} 32. Kc2 (32. Nf3 $15) 32... Bxg2 ({Black should try} 32... h6 $1 $19 {[%cal Rh6g5]} 33. Nf3 Be4+ 34. Kc1 a3) 33. f3 (33. Kb1 $1 $15) 33... h6 $17 34. Ne4 Bxf3 35. Nd2 Ne3+ 36. Kd3 Nd5 37. Bd6 Bg2 38. c4 Nf6 39. Kd4 Kf7 40. Nb1 Ke6 41. Bf8 (41. Bc7 $17) 41... h5 $19 42. Nc3 Bc6 43. Kc5 (43. Bh6 $17 {keeps fighting.}) 43... Be8 {And now ...Nd7+ would win.} 44. Kb4 (44. Kd4 $142) 44... Ng4 $1 45. h4 Ne3 46. Nd5 $2 (46. Bh6 {only move.} Nc2+ 47. Kc5) 46... Nf5 47. Nc7+ Kf7 {Played: Ke6-d7} 0-1

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "4.7"]
[White "Bu, Xiangzhi"]
[Black "Wang, Hao"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2729"]
[BlackElo "2735"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,85,0,12,8,5,5,26,14,14,16,12,15,43,27,60,0,43,0,0,-27,0,4,32,32,32,32,32,45,32,0,42,0,0,0,227,227,227,227,227,229,247,258,231,237,306,313,331,325,357,353,353,353,369,365,1145,808,1401,576,1249,1229,858,520,29991,29992]} 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 dxc4 5. e3 a6 6. a4 c5 7. Bxc4 Nc6 8. O-O cxd4 9. exd4 Be7 10. Re1 O-O 11. Bg5 Nb4 12. Qe2 Bd7 13. d5 {D27: Queen's Gambit Accepted: Classical main line: 7 e4!? and 7 a4} Nbxd5 14. Nxd5 exd5 15. Qxe7 {aiming for Bxf6.White has an edge.} dxc4 16. Bxf6 $146 ({Predecessor:} 16. Qb4 h6 17. Bh4 Be6 18. Rad1 Qc7 19. Bxf6 gxf6 20. Nd4 Rfe8 {0-1 (36) Iliushkin,E (2292)-Vulfson,V (2412) Samara 2002}) 16... gxf6 17. Qe4 Qc7 18. Qh4 {[%mdl 1024] White has compensation.} Qc6 19. Nd2 ({White should play} 19. Re4 $14) 19... Rfe8 20. Ne4 (20. Qxc4 Rxe1+ 21. Rxe1 Qxc4 $15) 20... Re6 $1 21. Re3 Rae8 {[%cal Re6e4]} 22. Rae1 f5 23. Ng5 {[%mdl 64] [#] Double Attack} Rh6 24. Rxe8+ Bxe8 25. Qf4 {Strongly threatening Qb8!} Bd7 $1 {...Qd6 is the strong threat.} 26. h4 $40 {[%mdl 128] And now Qb8+ would win. White mounts an attack.} Rd6 27. Nf3 h6 28. Ne5 Qd5 $2 (28... Qxa4 $11 29. Qg3+ Kf8) 29. Nxd7 $18 {[%mdl 64] [#] Overworked Piece} ({Stronger than} 29. Qxc4 Qxc4 30. Nxc4 Rd4 $17) (29. Nxc4 Rg6 $11) 29... Rxd7 30. Qxh6 {[%cal Re1e8][%mdl 4096] Endgame KQR-KQR} Rd8 31. Re3 {[%cal Re3g3]} f4 32. Qxf4 {Threatens to win with Qh6.} Rd6 33. Re5 Qd4 34. Re4 Qd1+ 35. Kh2 Rg6 36. Rxc4 ({But not} 36. Re8+ Kg7 $18) 36... Qd5 {[%csl Gg6][%cal Rd5g2]} 37. f3 Qe6 38. h5 Rg7 $2 (38... Rh6 39. Qg5+ Kh7) 39. Re4 Qd7 40. Rd4 (40. Qb8+ $142 Kh7 41. Re8 Qxe8 42. Qxe8) 40... Qc8 41. h6 Rg6 42. Rd6 Qc5 (42... b5 $18 43. axb5 axb5) 43. Rd8+ {Accuracy: White = 62%, Black = 23%.} 1-0

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.14"]
[Round "4.8"]
[White "Leko, Peter"]
[Black "Jones, Gawain C B"]
[Result "1/2-1/2"]
[ECO "D71"]
[WhiteElo "2674"]
[BlackElo "2702"]
[Annotator "TA"]
[PlyCount "190"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,190,0,19,13,35,31,20,14,26,15,30,18,38,29,44,16,25,0,12,16,18,15,14,22,55,48,48,48,48,47,49,47,49,49,54,52,56,54,54,52,53,52,62,62,62,62,62,62,62,64,67,63,78,78,76,76,92,66,72,70,97,88,110,88,90,82,92,92,92,88,88,88,88,88,94,88,93,88,88,88,88,65,88,88,99,99,99,99,99,99,99,99,99,99,99,0,99,99,99,0,99,0,99,88,99,88,100,88,88,88,99,100,107,61,118,63,63,63,63,63,63,63,63,63,63,63,63,39,39,39,39,39,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,87,40,40,40,40,40,40,40,40,40,40,40,40,0,40,59,85,32,42]} 1. d4 Nf6 2. c4 g6 3. g3 c6 4. Bg2 d5 5. Qa4 Bg7 6. Nf3 O-O 7. O-O Nbd7 8. cxd5 {D78: Fianchetto Grünfeld: 6 0-0 c6} cxd5 9. Bf4 Nb6 10. Qb3 {The position is equal.} Bf5 11. Nc3 Ne4 12. Rfc1 Qd7 $146 ({Predecessor:} 12... Rc8 13. Nb5 a6 14. Na3 Nd6 15. Rxc8 Ndxc8 16. Rc1 Nd6 17. Ne5 Ndc4 18. Naxc4 dxc4 19. Nxc4 Nxc4 20. Qxc4 {0-1 (47) Movsesian,S (2670)-Repka,C (2372) Velky Cetin 2018}) 13. Ne5 Bxe5 14. Bxe5 {next Nxe4 is good for White.} Rfc8 15. Nxe4 Bxe4 16. f3 Bf5 $1 17. g4 Be6 $1 18. Bf4 Rc4 19. Qd1 Rac8 20. b3 Rxc1 21. Rxc1 Rc6 22. Kf2 Nc8 23. Rxc6 Qxc6 24. Qc1 Qxc1 25. Bxc1 $14 {[%mdl 4096] Endgame KBB-KBN} f6 26. h3 Bd7 27. e4 Bc6 28. e5 Kf7 29. f4 e6 30. Bf1 Bd7 31. Ke3 Ne7 32. Ba3 Nc6 33. Bc5 a6 34. Bd3 Na5 35. Bb6 Nc6 36. a4 f5 37. Be2 Kg7 38. Bc5 Na5 39. Bd1 b5 40. Bb6 Nc6 41. axb5 axb5 42. Bf3 Kf7 43. Bc5 Na5 44. Bd1 Nc6 45. Kd3 b4 46. Ke3 Kg7 47. Bf3 Bc8 48. Be2 Bb7 49. Bb5 Kf7 50. Ba4 Kg7 51. Kf3 Ba8 52. Kg3 Bb7 53. Kh4 Ba8 54. Kg3 Bb7 55. Kf2 Kf7 56. Ke3 (56. g5 $16) 56... Ba8 (56... Kg7 $11 {remains equal.}) 57. Bb5 Bb7 58. Bd3 Kg7 59. Kf3 Kf7 60. Bb6 Nb8 61. Bb5 Nc6 62. Bc5 Kg7 63. h4 h5 (63... fxg4+ $14 64. Kxg4 h5+ 65. Kg3 Kf7) 64. gxh5 (64. g5 $16) 64... gxh5 65. Ke3 Kg6 66. Kd2 Kf7 67. Kc2 Kg7 68. Kb2 Kf7 69. Ka2 Kg7 70. Bxc6 (70. Bd3 {is more complex.} Kh6 71. Kb2 Kg6 72. Be2 Bc8 73. Kc1) 70... Bxc6 71. Bxb4 {KB-KB} Kf7 72. Ka3 Ke8 73. Ba5 {[#] Kb4 is the strong threat.} Bb5 74. Kb4 Be2 75. Kc5 Kd7 76. b4 {[%cal Bb3b4,Bb4b5][%mdl 32]} Bf1 77. b5 Be2 78. Bb6 Bf1 79. Ba7 Be2 80. Bb8 Bf1 81. Bd6 Be2 82. Kb6 Bf1 83. Bf8 Be2 84. Bh6 Bf1 85. Bg5 Be2 86. Kc5 Bf1 87. b6 Ba6 88. Bf6 Bb7 89. Kb5 Bc8 90. Be7 Bb7 $1 (90... Kxe7 $2 91. Kc6 $18) 91. Bf8 Ke8 92. Kc5 {[#] And now Kd6 would win.} Kd7 $1 (92... Kxf8 93. Kd6 $18) 93. Kb5 Ke8 94. Bd6 Kd7 95. Kc5 (95. Ba3 $16) 95... Bc8 {Accuracy: White = 75%, Black = 71%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "5.1"]
[White "Dominguez Perez, Leinier"]
[Black "Andreikin, Dmitry"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2750"]
[BlackElo "2722"]
[Annotator "TA"]
[PlyCount "47"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,47,53,59,44,71,60,65,43,36,46,83,34,33,44,33,30,33,33,40,37,28,47,27,34,48,40,36,43,19,45,54,53,61,50,888,888,881,879,29996,29997]} 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Nf3 c6 6. h3 {B01: Scandinavian Defence} (6. g3 Bf5 7. Bg2 h6 8. O-O e6 9. Na4 Nbd7 10. Bf4 Qe7 11. c4 g5 12. Be3 Bg7 13. Qb3 Rb8 {1-0 (88) Grandelius,N (2655)-Andreikin,D (2723) Porto Carras 2018}) 6... g6 7. Bc4 Be6 8. Bb3 $146 {White is slightly better.} ({Predecessor:} 8. Bxe6 Qxe6+ 9. Ne2 Bg7 10. O-O O-O 11. Re1 Qc8 12. b3 c5 13. Ba3 Na6 {1-0 (51) Breder,D (2465)-Milanovic,D (2502) Austria 2013}) 8... Bxb3 9. axb3 Qe6+ 10. Ne5 Nbd7 11. O-O {[#] Strongly threatening Nc4.} Nxe5 12. dxe5 Qxe5 13. Re1 Qf5 14. g4 {[%mdl 1024] White has compensation.} Qd7 15. Qf3 {[#] Black must now prevent Qxf6.} Bg7 16. Bg5 O-O 17. Rad1 $1 {[%cal Rd1d7]} Qe8 $1 18. Bxf6 Bxf6 19. Ne4 $1 $36 {[%cal Re4f6][%mdl 2048] Black is under pressure.} Qc8 20. Nxf6+ exf6 21. Qxf6 {Re7 is the strong threat.} h5 $2 {[%mdl 8192]} (21... Re8 $14) 22. Re7 $18 hxg4 23. Rdd7 gxh3 24. Rxf7 {Accuracy: White = 71%, Black = 38%.} 1-0

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "5.2"]
[White "Le, Quang Liem"]
[Black "Fedoseev, Vladimir"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2704"]
[BlackElo "2683"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,86,10,16,11,11,13,18,11,11,11,13,17,12,14,23,21,29,31,21,0,41,42,37,15,30,18,18,10,6,-1,22,22,29,0,0,0,3,-16,-12,-26,-12,-72,-64,-76,-31,-27,-29,-32,-28,-28,-28,-31,-34,-33,0,0,0,0,0,0,9,0,0,0,0,0,4,0,0,0,0,0,24,0,8,0,38,0,7]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nd3 Nxe4 5. Qe2 Qe7 6. Nc3 {[#] Hoping for Nd5. C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves} Nf6 7. Nf4 c6 8. d4 Qxe2+ 9. Bxe2 Bf5 (9... d5 10. O-O Bd6 11. Bd3 O-O {1-0 (57) Harikrishna,P (2723)-Yu,Y (2751) Shenzhen 2019}) 10. Bd3 Bxd3 11. Nxd3 Nbd7 12. O-O Nb6 13. Re1+ Kd7 14. a4 {[#]} a5 $146 ({Predecessor:} 14... Be7 15. f3 Nfd5 {½-½ (15) Buhmann,R (2568)-Fridman,D (2633) Skopje 2019}) 15. b3 Be7 16. Bd2 Rhe8 17. f3 Nfd5 18. Ne2 Bf6 {[#] ...Rxe2! is the strong threat.} 19. Rac1 Ne7 20. g4 h6 21. c3 Nbd5 22. Ng3 Bg5 23. f4 Bh4 $1 24. Kg2 f5 25. h3 (25. g5 $11) 25... Nf6 $17 {White must now prevent ...Bxg3.} 26. Nf2 g6 27. c4 fxg4 28. hxg4 h5 29. g5 $1 {[%cal Rg5f6]} Bxg3 30. Kxg3 Nf5+ 31. Kh3 $1 Ng4 (31... Rxe1 {keeps more tension.} 32. Rxe1 Ng4 33. Nxg4 hxg4+ 34. Kxg4 Rh8) 32. Nxg4 hxg4+ 33. Kxg4 Rxe1 34. Bxe1 $11 {[%mdl 4096] Endgame KRB-KRN} Re8 35. Bf2 Re2 36. Kf3 Rb2 37. Rc3 Rd2 38. Be3 Rh2 39. d5 Rh3+ 40. Kf2 Rh2+ 41. Kf3 Rh3+ 42. Kf2 Rh2+ 43. Kf3 Rh3+ {Accuracy: White = 60%, Black = 66%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "5.3"]
[White "Korobov, Anton"]
[Black "Cheparinov, Ivan"]
[Result "1-0"]
[ECO "E46"]
[WhiteElo "2687"]
[BlackElo "2667"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,55,-1,0,4,3,3,6,-3,-13,4,-34,24,-38,-54,-60,0,-15,85,62,72,38,210,167,133,115,260,49,133,0,225,169,188,195,413,382,401,386,381,371,807,472]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nge2 d5 6. a3 Be7 7. cxd5 exd5 8. Nf4 c6 9. Bd3 Na6 {E46: Nimzo-Indian: Rubinstein: 4 e3 0-0 5 Ne2 without early Bd3} 10. O-O Nc7 11. f3 Re8 {The position is equal.} 12. Kh1 (12. Bd2 Bf8 13. Qe1 g6 14. g4 c5 15. Qf2 b6 16. h4 Bd6 17. Nce2 {0-1 (54) Caruana,F (2816)-Karjakin,S (2782) Leuven 2018}) 12... b6 $146 ({Predecessor:} 12... c5 13. dxc5 Bxc5 14. e4 dxe4 15. Nxe4 Be7 16. Qc2 h6 17. Rd1 {½-½ (34) Chiku Ratte,O (2278)-Preotu,R (2495) Quebec 2018}) 13. g4 Ne6 (13... Bb7 $15) 14. b4 (14. Nxe6 $11 Bxe6 15. g5) 14... Nxf4 $15 15. exf4 Bb7 16. Qc2 c5 (16... Bd6 $11) 17. g5 Nh5 18. Bxh7+ Kf8 $2 (18... Kh8 $14) 19. bxc5 bxc5 20. Rb1 $36 {[%mdl 2048] Keeping Black busy.} Bc6 (20... Ba6 $16 21. Bd3 Bxd3 22. Qxd3 Kg8) 21. Bf5 $2 (21. g6 $1 $18 {[%cal Rg6f7]} Qd7 22. gxf7) 21... Bd6 $1 $14 {[#]} ({Wrong is} 21... g6 $2 22. Bxg6 $1 {[%mdl 512]} Ng7 23. Bd3 $18) 22. Ne2 ({White should play} 22. Bg4 $1 $16 Nxf4 23. dxc5) 22... Qe7 $2 (22... c4 $11 {and Black is okay.}) 23. dxc5 Bxc5 24. Bg4 Qxe2 $2 (24... Ba4 {was necessary.} 25. Qxa4 Qxe2) 25. Qxc5+ $18 {[%mdl 64] Double Attack} Kg8 26. Kg1 Rac8 {intending ...Bd7.} 27. Bxh5 Ba4 $2 (27... Bd7 28. Qf2 (28. Qxa7 Bh3 $11) 28... Bh3) 28. Qf2 {Accuracy: White = 42%, Black = 36%.} 1-0

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "5.4"]
[White "Ponomariov, Ruslan"]
[Black "Gelfand, Boris"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2675"]
[BlackElo "2676"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,66,33,34,54,12,12,17,22,22,23,21,23,11,28,4,-6,-7,31,24,18,17,35,18,22,12,14,13,10,12,27,0,45,0,0,-7,-7,-7,-10,-36,-6,-13,0,0,0,-19,0,-14,-14,-37,0,-12,0,-37,0,-16,0]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Bf5 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves} 8. Ne5 Nd7 9. Nc3 Nxc3 10. bxc3 Bxd3 11. cxd3 O-O 12. Rb1 Rb8 13. f4 $146 ({Predecessor:} 13. Ng4 Nf6 14. Ne3 g6 15. g4 c6 16. f4 h5 17. f5 hxg4 18. Nxg4 Nh7 19. Bh6 Re8 20. fxg6 fxg6 21. Qf3 {1-0 (21) Yu,Y (2759)-Wei,Y (2734) Tianjin 2018}) 13... f6 14. Ng4 f5 15. Ne5 Nxe5 16. fxe5 Qd7 17. Rb2 b5 18. Be3 a5 19. Rbf2 b4 20. cxb4 axb4 21. Qh5 {[%cal Rf2f5]} Qe8 22. Qe2 ({But not} 22. Rxf5 $2 Qxh5 23. Rxh5 Rxf1+ 24. Kxf1 g6 $19) 22... Qg6 23. g3 Ra8 24. Kg2 Ra3 25. Rc1 c6 26. Rc2 Rfa8 27. Bc1 R3a6 28. Be3 Qe6 29. Qf3 Ra3 30. Bc1 R3a6 31. Be3 Ra3 32. Bc1 R3a6 33. Be3 Ra3 {Accuracy: White = 42%, Black = 57%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "5.5"]
[White "Vidit, Santosh Gujrathi"]
[Black "Leko, Peter"]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "2707"]
[BlackElo "2674"]
[Annotator "TA"]
[PlyCount "115"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,115,11,5,2,19,2,6,8,8,11,4,0,10,10,8,0,0,0,0,0,0,0,138,140,135,127,126,126,125,127,124,124,144,137,182,189,280,273,274,264,325,319,359,358,349,225,367,371,460,460,460,418,530,473,525,512,547,547,466,390,395,387,354,0,371,352,520,422,539,508,477,442,568,472,468,460,446,446,446,442,556,552,544,431,493,335,524,334,533,508,531,522,564,409,549,445,467,410,542,436,737,737]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. Nc3 {[%cal Bb1c3,Bc3d1,Bd1e3][%mdl 32]} dxc4 7. Ne5 c5 8. dxc5 Qxd1+ 9. Nxd1 {E06: Closed Catalan: Early deviations} Bxc5 10. Ne3 c3 11. bxc3 {The position is equal.} Nbd7 12. Nd3 Rb8 13. Nc4 b6 {[#]} 14. Bf4 $146 {[%cal Rf4b8]} ({Predecessor:} 14. Nxc5 Nxc5 15. Ba3 Ba6 16. Ne5 Rfc8 {1-0 (54) Gelfand,B (2777)-Adams,M (2754) London 2013}) 14... Bb7 15. Bxb8 Bxg2 16. Bd6 $1 Bxh1 17. Bxf8 Kxf8 18. f3 $1 b5 (18... Bg2 $11 {remains equal.}) 19. Nxc5 $16 Nxc5 20. Ne3 {[#]} Nfe4 $1 {[%mdl 512]} 21. fxe4 Bxe4 {[%mdl 4096] Endgame KRN-KBN} 22. a3 Ke7 23. c4 bxc4 24. Rc1 f5 25. Nxc4 ({But not} 25. Rxc4 Kd6 $16) 25... Ba8 (25... Bd5 $142 26. Ne3 Kd6 27. Nxd5 Kxd5) 26. Ne5 $18 Kd6 27. Nf7+ Kd5 28. Rd1+ Kc4 29. Nd6+ Kb3 30. Rb1+ Ka2 (30... Ka4 $142 31. Nc8 Bd5) 31. Rc1 Nb3 32. Rc7 $1 {[%csl LRa7,LRg7]} a5 33. a4 g5 34. Rxh7 g4 35. Ra7 Bd5 {If Black can now play ...Ka3 this consolidates a bit.} 36. Nb5 Kb2 37. e3 e5 38. Re7 Nc5 39. Ra7 Nb3 $1 40. Rd7 Bc4 (40... Bg2 {keeps fighting.} 41. Rd8 Bc6) 41. Nd6 Bd5 42. Re7 Nc5 43. Nxf5 Bb3 44. Nd6 Kc3 45. Ke2 Bxa4 46. Rxe5 Kb4 47. Rd5 Bd7 48. Rd4+ Kb3 49. Kd2 a4 {intending ...a3.} 50. Kc1 a3 (50... Be6 $142 51. Kb1 a3) 51. Kb1 a2+ (51... Be6 $142 52. Ka1 Kc2) 52. Ka1 Be6 53. Ne4 Na6 54. Rd2 Ka3 55. Nc3 Nb4 56. Nb5+ Ka4 57. Nd4 Bd5 (57... Bc4 $142 58. Rf2 Nd3) 58. Nc2 {Accuracy: White = 88%, Black = 44%.} 1-0

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "5.6"]
[White "Yu, Yangyi"]
[Black "Bu, Xiangzhi"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2739"]
[BlackElo "2729"]
[Annotator "TA"]
[PlyCount "138"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,138,14,14,34,14,14,8,20,27,30,15,32,41,33,41,31,33,41,41,66,50,58,46,49,15,22,0,0,-8,-20,-14,-10,-18,-20,-21,-22,-25,-19,-18,-13,-22,-22,-14,-14,-14,-7,-12,0,0,0,0,0,-17,-18,-13,-14,-14,0,0,0,0,0,0,0,-9,-9,-111,-111,-175,-164,-179,-176,-173,-166,-181,-158,-189,-145,-191,-185,-238,-237,-238,-186,-299,-176,-566,-231,-237,-244,-243,-156,-164,-74,-74,-74,-77,-77,-83,-72,-73,-83,-80,-71,-71,0,-72,0,-71,-8,-8,-8,-57,-7,-7,-7,-7,-7,-7,-7,-7,-7,-7,-7,-7,0,0,0]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Be3 Nc6 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves} 8. Bd3 O-O (8... Bg4 9. h3 Bh5 10. Qe2 Ne5 11. Be4 Nxf3+ 12. Bxf3 Bxf3 13. Qxf3 c6 14. O-O-O O-O 15. h4 {½-½ (34) Yu,Y (2759)-Bu,X (2718) Ningbo 2018}) 9. Qe2 Be6 10. O-O-O Qd7 11. h4 Bf5 ({Don't play} 11... Bxa2 $6 12. b3 $16) 12. Rdg1 $146 ({Predecessor:} 12. Nd4 Nxd4 13. Bxd4 Rfe8 14. Qf3 Bxd3 15. Rxd3 b5 {0-1 (43) Alekseenko,K (2637)-Duda,J (2738) chess.com INT 2019}) 12... Rfe8 13. Bxf5 Qxf5 14. g4 Qe6 15. Kb1 Ne5 16. Nd4 Qc4 17. Qd1 $1 Qd5 18. b3 b5 19. f4 Nc6 20. Nf5 Qxd1+ 21. Rxd1 g6 22. Nxe7+ Rxe7 23. Bc1 Rae8 24. h5 Re2 25. f5 R8e4 26. hxg6 fxg6 27. fxg6 hxg6 28. g5 Ne5 29. Rdf1 Rg2 30. Rf6 Ree2 31. Rhf1 Kg7 32. Rf8 Rg1 33. Rxg1 Kxf8 $11 {[%mdl 4096] Endgame KRB-KRN} 34. Rf1+ Kg7 35. Rf4 Rg2 36. a4 a6 37. axb5 axb5 38. Rd4 Nf7 39. Kb2 (39. Rd5 $11 {keeps the balance.}) 39... Nxg5 $17 40. c4 (40. Rd5 $17 Ne6 41. Be3) 40... bxc4 $19 41. Rxc4 Ne6 42. b4 Kf6 43. b5 g5 44. Be3 Re2 45. Rc3 g4 46. b6 (46. Kc1 {might work better.}) 46... cxb6 47. Bxb6 Kf5 48. Rd3 (48. Kc1 {was called for.}) 48... Ke5 (48... Nc5 $142 49. Rxd6 Na4+ 50. Kb3 Nxb6 51. Rxb6 g3) 49. Kb3 $2 (49. Kc1) 49... d5 (49... Nc5+ $142 50. Bxc5 dxc5) 50. c3 Re1 {Threatens to win with ...Rb1+.} 51. Ba7 Rb1+ 52. Kc2 {[#]} Ra1 (52... Rb5 $1 $19 {is more deadly.} 53. Bf2 Ng5) 53. Bb8+ $17 Ke4 54. Rg3 Kf5 55. Rd3 Ra2+ 56. Kb1 Ra5 {Hoping for ...Rb5+.} 57. Kc2 Ng5 58. Rd4 Ne6 (58... Ne4 $17 {White must now prevent ...Rc5.} 59. Kd3 Nc5+ 60. Kc2 Ne6) 59. Rd1 (59. Rd3 $1 $11 {remains equal.}) 59... Ng5 60. Rd4 $1 Rb5 (60... Ne4 $17 {And now ...Rc5 would win.} 61. Kd3 Rc5) 61. Rf4+ $1 $11 Kg6 62. Be5 Kh5 {aiming for ...g3.} 63. Rf5 {[#] Bf4 is the strong threat.The position is equal.} d4 $1 {[%mdl 512]} 64. cxd4 g3 {Strongly threatening ...g2.} 65. Rxg5+ $1 Kxg5 66. Bxg3 Kf5 67. Kc3 Ke4 68. Be5 Rxe5 69. dxe5 Kxe5 {Accuracy: White = 64%, Black = 55%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "5.7"]
[White "Mamedov, Rauf"]
[Black "Rapport, Richard"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2650"]
[BlackElo "2736"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,80,-1,0,8,-8,0,0,1,-17,-21,-46,-8,-18,-14,-31,0,0,0,-7,10,0,0,-17,26,18,20,25,37,21,65,0,0,0,40,0,0,0,0,0,0,-48,-45,-60,-40,-137,-136,-150,-139,-213,-216,-208,-208,-210,-132,-217,-182,-174,-192,-334,-329,-300,-314,-264,-232,-429,-429,-409,-352,-29989,-29990]} 1. g3 g6 2. Bg2 Bg7 3. Nf3 e5 4. d3 Ne7 5. c4 d6 6. Nc3 Nbc6 7. Rb1 a6 {A26: English Opening vs King's Indian with ...Nc6 and d3} (7... h6 8. b4 Be6 9. b5 Nd4 10. O-O Nxf3+ 11. Bxf3 c6 12. bxc6 bxc6 13. Qa4 Qd7 {½-½ (13) Nikolov,M (2574)-Enchev,I (2456) Heraklion 2016}) 8. e4 $146 ({Predecessor:} 8. O-O O-O 9. a3 Rb8 10. b4 b5 11. Nd5 Nxd5 12. cxd5 Ne7 13. Nd2 Bb7 14. e4 c6 15. dxc6 Nxc6 {0-1 (35) Nettleton,C (2059)-Gullaksen,E (2349) London 2018}) 8... b5 9. b3 O-O {The position is equal.} 10. h4 Bg4 11. Ne2 h5 12. Nh2 Be6 13. Nf1 Qd7 14. Ne3 Rab8 15. Nd5 a5 16. O-O Nb4 17. Bd2 Nxd3 (17... Nec6 {is more complex.} 18. a3 Nxd3 19. cxb5 Rxb5 20. Nec3 Rbb8) 18. Nxe7+ Qxe7 19. cxb5 Nc5 20. a4 c6 21. Nc3 (21. Bxa5 $14 cxb5 22. axb5) 21... Rfc8 $11 22. Be3 Bd7 {[%cal Rc6b5]} 23. bxc6 Bxc6 24. Nd5 Qe6 25. Bxc5 dxc5 26. Ne3 Rb4 27. Qc2 Bf8 28. Rfd1 {[#]} (28. Rfc1 $15) 28... c4 $1 $17 {[%cal Rc4b3][%mdl 512]} 29. Nxc4 {[#]} (29. bxc4 Bxa4) 29... Bxa4 $1 {[%mdl 512]} 30. Bf1 (30. bxa4 $17 Rcxc4 31. Qe2) 30... Bb5 $19 31. Rd5 a4 {And now ...axb3 would win.} 32. Qd1 axb3 ({But not} 32... Bxc4 33. bxc4 a3 34. Kg2) 33. Rxe5 (33. Nd6 $17 Bxf1 34. Nxc8) 33... Qf6 34. Rxb5 Rxb5 35. Rxb3 (35. e5 {was necessary.} Qe6 36. Rxb3 Rxb3 37. Qxb3) 35... Rxb3 36. Qxb3 {[#]} Bc5 $1 37. Ne3 Bd4 $40 {[%mdl 128] Black is out for blood.} 38. Kg2 $2 (38. Be2) 38... Rc3 39. Qb8+ Kg7 40. Nd1 $2 (40. Qf4 $19 Bxe3 41. fxe3) 40... Qf3+ {[%mdl 64] Double Attack. Accuracy: White = 33%, Black = 60%.} 0-1

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "5.8"]
[White "Wang, Hao"]
[Black "Jones, Gawain C B"]
[Result "1/2-1/2"]
[ECO "C48"]
[WhiteElo "2735"]
[BlackElo "2702"]
[Annotator "TA"]
[PlyCount "111"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,111,2,0,0,0,-8,-14,-12,-22,-13,-22,-11,-15,-15,-28,-24,-16,-28,-15,0,0,0,0,0,0,0,0,0,0,0,-40,0,0,7,-7,36,29,51,55,47,52,52,41,64,52,60,66,59,48,114,111,130,128,187,183,195,141,171,143,145,125,201,164,215,194,194,194,209,209,208,207,207,207,200,91,84,80,83,41,41,40,118,27,27,18,50,0,0,0,0,0,0,-2,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O O-O 6. d3 Nd4 {C48: Four Knights: 4 Bb5, replies other than 4...Bb4} 7. Nxd4 (7. Bc4 c6 8. Nxd4 Bxd4 9. Bb3 d5 10. exd5 Nxd5 11. Nxd5 cxd5 12. Re1 Be6 13. c3 Bb6 14. Rxe5 Bxf2+ 15. Kh1 Bb6 16. Qf3 Bc7 {½-½ (31) Naiditsch,A (2697)-Nabaty,T (2692) Jerusalem 2018}) 7... Bxd4 8. Ne2 Bb6 9. Bg5 h6 10. Bh4 c6 11. Bc4 Re8 12. Bb3 $146 ({Predecessor:} 12. Kh1 g5 13. Bg3 d5 14. exd5 cxd5 {0-1 (33) Vontina,M (652)-Vodicka,M (1670) LSS email 2011}) 12... g5 13. Bg3 d5 14. exd5 cxd5 15. d4 e4 16. Be5 Ng4 17. Nc3 Nxe5 18. dxe5 Rxe5 19. Bxd5 Qe7 20. Kh1 g4 21. Qe2 Bf5 22. Bb3 Qh4 23. Nd5 Rae8 24. Nxb6 axb6 25. Qe3 Be6 26. Rad1 Bxb3 27. axb3 Rh5 {[%csl Gh5][%cal Rh4h2]} 28. Qf4 $1 Qg5 29. Qg3 Qe5 ({Black should play} 29... e3 $14 30. fxe3 Rxe3 31. Qb8+ (31. Qc7 Re7 $14) 31... Kg7) 30. Qxg4+ $16 Kh7 {[%csl Gh5][%cal Re5h2]} 31. g3 Rg8 (31... Rf5 $16 32. Kg1 e3) 32. Qe2 $18 Rf5 33. c4 (33. c3 $18) 33... Qe6 34. Rd4 Re8 35. Kg1 Re5 (35... Rf3 $16 36. b4 Kg7) 36. Qe3 Qh3 (36... b5 $142 37. Rfd1 Qg4) 37. Rd5 Rxd5 38. cxd5 {[%mdl 4096] Endgame KQR-KQR} Qh5 {[#]} 39. Qd4 $1 ({Don't take} 39. Qxb6 $6 Qxd5 40. Qe3 Rc8 $16) 39... Re5 40. d6 {Black must now prevent d7.} ({Much less strong is} 40. Qxb6 $6 Rxd5 41. Qxb7 Rd4) 40... Rd5 41. Qxe4+ Kg7 42. g4 (42. Re1 $18 {is more deadly.}) 42... Qg5 $16 43. h4 Qd2 44. Re1 Rxd6 {aiming for ...Re6.} 45. Qe5+ Kg8 ({Better is} 45... Rf6 $14) 46. Qe8+ (46. Kg2 $16) 46... Kg7 $11 47. Re2 Qd1+ 48. Kg2 Re6 $1 {[%mdl 64] [#] Decoy. The position is equal.} 49. Rxe6 Qxg4+ {[%mdl 64] Double Attack} 50. Kf1 Qxe6 {KQ-KQ} 51. Qa4 Qe5 52. Qg4+ Kh7 53. Qf3 Kg7 54. Qg4+ Kh7 55. Qd7 Kg7 56. Qg4+ {Accuracy: White = 52%, Black = 55%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "6.1"]
[White "Korobov, Anton"]
[Black "Dominguez Perez, Leinier"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2687"]
[BlackElo "2750"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,78,35,0,17,13,18,0,0,0,6,0,25,22,20,7,105,104,84,93,95,90,114,106,138,102,93,93,182,175,268,267,404,415,389,380,380,380,427,427,418,253,264,216,210,214,210,203,187,189,367,379,666,368,335,279,29992,29993,29993,1182,29994,29982,12849,1710,3323,1685,29996,616,585]} 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 c5 7. a3 cxd4 {D35: Queen's Gambit Declined: Exchange Variation} (7... g6 8. Nf3 Bg7 9. Be2 O-O 10. h4 Nc6 11. Be3 Qa5 12. Bd2 Qd8 13. Be3 Qa5 14. O-O Qxc3 15. Rc1 Qxa3 16. Rxc5 {1-0 (46) Le,Q (2728)-Shimanov,A (2626) Philadelphia 2018}) 8. cxd4 e5 9. d5 Bd6 {The position is equal.} 10. Nf3 O-O 11. Be2 Nd7 {[%cal Bb8d7,Bd7c5,Bc5b7,Bb7d6][%mdl 32]} 12. Be3 $146 ({Predecessor:} 12. O-O Nc5 13. Nd2 Qe7 14. f3 Bd7 15. a4 {½-½ (38) Martinovic,S (2496)-Saric,A (2523) Zagreb 2012}) 12... Nc5 13. Nd2 b5 (13... b6 $11) 14. Rc1 $16 Qe7 15. Qc2 {[%cal Re3c5]} Nb7 16. Bxb5 Bxa3 17. Rb1 a5 18. O-O Nd6 19. Bc6 $1 $36 {[%cal Rc6a8][%mdl 2048] Keeping Black busy.} Ba6 (19... Bb7 $16) 20. Bxa8 $18 Bxf1 (20... Rxa8 $142 21. Rfd1 Bb4) 21. Bc6 ({But not} 21. Kxf1 $6 Rxa8 22. Qa4 Ne8 $16) 21... Ba6 (21... Be2 $142 22. Nb3 {[%mdl 64] Discovered Attack} Ba6 23. Nxa5 f5) 22. Qa4 $1 {[%csl LRa3,LRa5][%cal Ra4a3]} Nb7 {Now ...Bb4 and Black clings on.} 23. Bxb7 Bxb7 24. Qxa5 Ra8 25. Qb6 Ba6 26. h3 {And now Qc6 would win.} Qd6 27. Qb3 h6 28. Ra1 Be2 29. f3 {Hoping for Kf2.} Ra5 30. Kh2 Qb4 $2 (30... Bb4 31. Rxa5 Bxa5) 31. Qc2 Qb5 $2 (31... Ra6 32. Rb1 Qf8) 32. Qc8+ Kh7 33. Rb1 Qd3 $2 {[#]} (33... Qa6 $18 34. Qd7 Qf6) 34. Qf5+ $1 Kg8 35. Rb3 (35. Rb7 $142 Qxd5 36. exd5 f6 37. Qe6+ Kh7 38. Qxf6 Bf8 39. Qxf8 Kg6 40. Qxg7+ {[%mdl 64] Double Attack} Kh5 41. Qxh6#) 35... Qc2 36. Rb8+ Bf8 37. d6 (37. Qd7 $142 Qa4 38. Qe7 $1 {[%mdl 576] Double Attack}) 37... Rb5 38. Re8 {Played: Rb8-c8} 1-0

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "6.2"]
[White "Fedoseev, Vladimir"]
[Black "Ponomariov, Ruslan"]
[Result "1/2-1/2"]
[ECO "C07"]
[WhiteElo "2683"]
[BlackElo "2675"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,82,0,-14,0,0,0,0,0,0,10,0,0,-7,0,-3,12,-5,0,0,0,0,0,0,0,0,0,-22,-22,-25,-25,-31,-31,-31,-31,-31,-32,-32,-31,-19,-6,-45,-20,-20,0,-11,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 cxd4 5. exd5 Qxd5 6. Bc4 Qd7 7. O-O Nc6 8. Nb3 Nf6 9. Nbxd4 a6 10. a4 Nxd4 11. Nxd4 Qc7 12. Qe2 Bc5 {C07: French Tarrasch: 3...c5, 4 Ngf3 and 4 exd5 Qxd5} (12... Bd6 13. h3 O-O 14. Bg5 Ne4 15. Bh4 Nd2 16. Qxd2 Qxc4 17. Rfd1 Re8 18. b3 Qc5 19. Ne2 Bf8 20. a5 e5 21. Bg5 Bf5 {1-0 (46) Polgar,J (2693)-Jianu,V (2574) Yerevan 2014}) 13. Nf3 (13. Rd1 {with more complications.} O-O 14. Bg5 e5 15. Bxf6 Bxd4 16. c3) 13... O-O 14. Bg5 b6 15. Bd3 $146 ({Predecessor:} 15. Bxf6 gxf6 16. Rad1 Bb7 17. Nd4 Kh8 18. Kh1 Qf4 19. Qe3 Qxe3 20. fxe3 {1-0 (66) Kyc,J (2265)-Szustakowski,A (2376) Krakow 2018}) 15... Bb7 16. Bxf6 gxf6 17. Be4 Rfd8 18. Rad1 Kg7 19. g3 a5 20. Bxb7 Qxb7 21. b3 Rac8 22. Rd3 Rxd3 23. Qxd3 Bb4 {[#] ...Rc3 is the strong threat.} 24. c4 Be7 25. Rd1 Rd8 26. Qe2 $1 Rxd1+ 27. Qxd1 Qe4 28. Ne1 Bc5 29. Nd3 Bd4 30. Nf4 f5 31. Ne2 Bf6 32. Nf4 {The position is equal.} Be5 33. Qd8 Bxf4 34. gxf4 Qxf4 35. Qxb6 $11 {[%mdl 4096] Endgame KQ-KQ} Qg4+ 36. Kf1 Qd1+ 37. Kg2 Qg4+ 38. Kf1 Qd1+ 39. Kg2 Qg4+ 40. Kf1 Qd1+ 41. Kg2 Qg4+ {Accuracy: White = 46%, Black = 58%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "6.3"]
[White "Vidit, Santosh Gujrathi"]
[Black "Le, Quang Liem"]
[Result "1/2-1/2"]
[ECO "A40"]
[WhiteElo "2707"]
[BlackElo "2704"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,120,13,0,0,-15,22,16,20,8,7,7,6,14,14,0,0,0,8,-14,-14,-17,-14,-14,-14,-20,14,12,55,53,56,56,65,65,98,97,96,93,149,93,96,78,91,101,98,45,51,10,26,3,21,8,12,8,10,10,10,10,27,15,16,21,45,45,66,62,115,89,101,73,73,73,73,73,48,18,18,15,15,15,15,15,15,15,15,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 cxd4 5. Nxd4 Qc7 6. Nc3 a6 7. Bg2 Qxc4 8. O-O ({Predecessor:} 8. Bf4 Nc6 9. Nb3 d5 10. Rc1 Qb4 {½-½ (76) Oboladze,L (2340)-Filip,L (2438) Skopje 2019}) 8... Nc6 {A32: Symmetrical English: 2 Nf3 Nf6 3 d4 cxd4 4 Nxd4 e6} 9. Nb3 d5 10. Bf4 Qb4 11. Rc1 Be7 $1 12. a3 Qb6 13. e4 dxe4 14. Nxe4 $146 (14. Be3 Qc7 15. Nc5 O-O 16. N5xe4 {1-0 (31) Svane,R (2595)-Gelfand,B (2701) Douglas 2018}) 14... O-O 15. Be3 Qc7 16. Bf4 e5 17. Nxf6+ Bxf6 18. Be3 Rd8 19. Qc2 Be6 20. Nc5 $36 {[%mdl 2048] With the idea Nxb7! White is more active.} Bd5 21. Bxd5 Rxd5 22. Qb3 Rdd8 23. Qxb7 Qc8 24. Qxc8 Rdxc8 25. Nd7 Nd4 (25... Bd8 $142) 26. Kg2 (26. Rxc8+ $142 Rxc8 27. Nxf6+ gxf6 28. Bxd4 exd4 29. Rd1) 26... Rd8 $16 27. Rc7 Nb5 28. Nxf6+ gxf6 29. Rc6 (29. Rc4 $16) 29... Kg7 $1 $14 30. g4 Nd4 31. Rc4 Ne6 32. Rfc1 a5 33. Ra4 Rab8 34. b4 axb4 35. Rxb4 Rxb4 (35... Ra8 {is more complex.} 36. a4 Kg6 37. Kf3 f5 38. gxf5+ Kxf5 39. Ra1 Ra6) 36. axb4 $11 {[%mdl 4096] Endgame KRB-KRN} Rb8 37. Rb1 Nc7 38. Kf3 Nd5 39. Bd2 $1 Kf8 (39... Nc7 $14) 40. Ke4 $16 Ke7 41. Kxd5 {KRB-KR} Rd8+ 42. Ke4 Rxd2 {KR-KR} 43. b5 Kd7 44. b6 {[#] Strongly threatening b7.} Kc8 {The position is equal.} 45. b7+ Kb8 46. Ke3 Rd4 47. f3 f5 48. gxf5 Rf4 49. Rb6 Rxf5 50. h4 Rh5 51. Ke4 f6 52. Rxf6 {[#] Hoping for Rb6.} Kxb7 53. Rf5 Rxh4+ 54. Kxe5 h5 55. f4 (55. Rf6 {keeps more tension.} Rh3 56. f4 Rh1 57. Rh6 Kc7 58. Rh7+) 55... Rh1 56. Kf6 h4 57. Rh5 h3 58. f5 h2 59. Kf7 Rf1 60. Rxh2 Rxf5+ {Accuracy: White = 61%, Black = 73%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "6.4"]
[White "Rapport, Richard"]
[Black "Gelfand, Boris"]
[Result "1/2-1/2"]
[ECO "C36"]
[WhiteElo "2736"]
[BlackElo "2676"]
[Annotator "TA"]
[PlyCount "124"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,124,-46,-64,11,9,6,16,11,0,2,8,3,0,43,17,48,37,56,35,49,47,46,38,49,7,5,10,33,-12,-11,-7,-10,-40,-9,-9,-6,-19,-2,-141,-16,-25,-20,-19,-10,-55,0,-21,0,0,14,14,6,0,17,20,16,11,27,15,23,7,7,0,0,0,0,-1,0,0,0,0,0,0,0,-5,8,8,8,0,0,0,39,8,8,8,8,8,10,8,15,15,27,8,8,8,8,8,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. f4 exf4 3. Nf3 d5 4. exd5 Nf6 5. Be2 Nxd5 6. c4 Nf6 {C36: King's Gambit Accepted: 3 Nf3 d5} (6... Nb4 $15 7. d4 Bf5) (6... Ne7 7. Nc3 Ng6 8. h4 Be7 9. h5 Nh4 10. Nd5 Nc6 11. d4 Nxg2+ 12. Kf1 Ne3+ 13. Nxe3 fxe3 14. d5 {½-½ (33) Rapport,R (2671)-Adams,M (2740) Biel 2015}) 7. d4 $1 $11 Bd6 8. c5 Be7 9. Nc3 O-O 10. Bxf4 Be6 11. O-O Nc6 $146 (11... Nd5 $5 {[%cal Rd5f4]} 12. Qd2 Nxf4 13. Qxf4 Nc6 $14) ({Predecessor:} 11... Nd5 12. Bg3 Nxc3 13. bxc3 {1-0 (25) Arilla Santos,E (1915)-Bienvenido Kleque,J (1567) Barcelona 2009}) 12. Qd2 Nd5 13. Bg3 a6 14. Kh1 Qd7 15. Rad1 Rad8 16. a3 f5 17. b4 Nxc3 18. Qxc3 Bd5 19. a4 f4 20. Bf2 Bf6 21. Bd3 Qf7 22. b5 axb5 23. axb5 Ne7 24. Qc2 {[#]} (24. Rfe1 $11 {keeps the balance.}) 24... Qh5 ({Black should try} 24... Bb3 $1 $17 {[%cal Rb3c2]} 25. Qe2 Bxd1) 25. Bc4 Bxc4 26. Qxc4+ Qd5 27. Nd2 Ra8 (27... Qxc4 $15 28. Nxc4 Nd5) 28. Rfe1 Ra2 {[#] And now ...Qxc4 would win.} 29. Qd3 Qf7 30. Ne4 {Black should prevent d5.} Nd5 31. Ra1 Rxa1 32. Rxa1 Qe6 33. Re1 Qf5 34. Qb3 Kh8 35. b6 cxb6 36. Nd6 Qh5 37. cxb6 h6 38. h3 f3 39. Qxf3 Qxf3 40. gxf3 Nxb6 41. Rb1 Nd5 42. Rxb7 Ra8 43. Ne4 Ra3 44. Nxf6 Nxf6 {[%mdl 4096] Endgame KRB-KRN} 45. Kg2 Nd5 46. Rb5 Nf4+ 47. Kg3 Ne2+ 48. Kg4 {White wants to play Re5.} Rd3 $1 49. Rd5 Kg8 50. h4 g6 51. Rd7 h5+ {The position is equal.} 52. Kg5 {Threatens to win with Re7.} Rxf3 53. Be1 Rf7 54. Rd6 Kh7 {[%csl Gg6][%cal Rf7f5]} 55. Rxg6 Rf1 56. Re6 Rxe1 {KRN-KR} 57. Re7+ Kg8 58. Kh6 Rd1 59. Rxe2 {aiming for Re4.} Rxd4 60. Kxh5 Rd7 61. Rg2+ Rg7 62. Rxg7+ Kxg7 {Accuracy: White = 50%, Black = 58%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "6.5"]
[White "Andreikin, Dmitry"]
[Black "Yu, Yangyi"]
[Result "0-1"]
[ECO "C48"]
[WhiteElo "2722"]
[BlackElo "2739"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,98,7,0,0,-1,-2,0,-7,-1,-14,0,-22,14,0,12,19,16,13,14,11,11,7,9,-3,0,-14,-12,-17,-12,-17,-10,-23,-24,-27,-22,-21,0,0,27,35,19,32,37,0,0,0,0,0,0,-5,-5,-6,-5,-6,-19,-11,-10,-11,0,0,0,-14,0,-125,-130,-147,-171,-288,-170,-467,-450,-678,-683,-774,-754,-750,-750,-1116,-1121,-860,-1077,-29976,-29974,-29980,-29981,-29981,-29971,-29966,-29971,-29960,-29950]} 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. O-O c6 {[#] White must now prevent ...Nxf3+.} 6. Bd3 {C48: Four Knights: 4 Bb5, replies other than 4...Bb4} Nxf3+ 7. Qxf3 d6 8. Be2 {The position is equal.} Be7 9. d3 O-O 10. Qg3 Be6 11. Kh1 Kh8 12. f4 exf4 13. Bxf4 {[#]} d5 $146 14. Bc7 Qd7 15. Be5 d4 16. Nb1 {[%cal Bc3b1,Bb1d2,Bd2f3][%mdl 32]} Ne8 17. h4 f6 18. Bf4 Nd6 19. Nd2 c5 20. h5 Nf7 21. Nf3 Rae8 22. Rf2 Bd6 23. h6 {[%csl Gh6][%cal Rg3g7]} g5 (23... gxh6 {is interesting.} 24. Qh2 Rg8 25. Raf1 Bg4 26. Bxd6 Qxd6 27. Qh4 h5) 24. Bxd6 Qxd6 25. Qxd6 Nxd6 26. Raf1 {Strongly threatening Nxg5!} Nf7 27. b4 b6 28. bxc5 bxc5 29. Nd2 Nxh6 30. Bh5 Re7 31. Rxf6 Rxf6 32. Rxf6 Kg7 33. Rf1 Bg4 34. Bxg4 Nxg4 $11 {[%mdl 4096] Endgame KRN-KRN} 35. Nc4 Rf7 {[%cal Rf7f1]} 36. Re1 (36. Kg1 $11 {remains equal.}) 36... Rf2 $17 37. e5 Kf7 38. Nd6+ (38. e6+ $142 Ke7 39. Na5) 38... Ke7 (38... Ke6 $142 39. Rc1 Ne3) 39. Nc8+ $2 (39. Kg1 {was necessary.}) 39... Ke6 $19 40. Nxa7 (40. Rc1 $142 Ne3 41. Nxa7) 40... Rxc2 41. a4 Nf2+ 42. Kh2 Nxd3 43. Ra1 Nb2 44. Nb5 d3 45. Nc7+ Kxe5 {Black mates.} 46. a5 d2 47. a6 d1=Q {[%mdl 64] [#] Promotion} 48. Rxd1 Nxd1 49. a7 Ra2 {Accuracy: White = 47%, Black = 68%.} 0-1

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "6.6"]
[White "Jones, Gawain C B"]
[Black "Cheparinov, Ivan"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "2702"]
[BlackElo "2667"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,96,15,13,10,11,3,15,16,18,0,0,0,8,6,29,0,0,-3,0,-19,-9,-49,0,-27,0,-16,-17,-27,-19,-45,-39,-79,-66,-81,-95,-90,-66,-90,-85,-78,-56,-62,-64,-39,-30,-45,-53,-88,-98,-94,-34,-45,-45,-52,-52,-52,-50,-63,-63,-82,-61,-55,0,0,0,-68,0,-72,-83,-100,-47,-112,-37,-38,0,-51,-27,-28,-21,-25,0,-18,0,-26,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 d6 6. a4 a5 7. c3 O-O 8. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1g3][%mdl 32] C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} (8. Bg5 h6 9. Bh4 g5 10. Bg3 Kg7 11. Nbd2 Ba7 12. Re1 Nh7 13. Nf1 h5 14. h3 h4 15. Bh2 g4 16. hxg4 Bxg4 {0-1 (76) Mamedov,R (2701)-Azarov,S (2585) Skopje 2019}) 8... h6 9. Re1 Be6 10. Qb3 {The position is equal.} Qd7 11. Nf1 Bxc4 12. Qxc4 Ba7 $146 ({Predecessor:} 12... Qe6 13. Qxe6 fxe6 14. Be3 Nd7 15. d4 exd4 16. Nxd4 Bxd4 17. Bxd4 Nxd4 18. cxd4 {½-½ (23) Hopman,P (2331)-Prusikin,M (2517) Bayerisch Eisenstein 2017}) 13. Be3 Ne7 14. Ng3 Bxe3 15. fxe3 Ng6 16. d4 Rfe8 17. Qb3 Qc6 18. Qb5 Ra6 19. Nd2 Rb6 20. Qxc6 Rxc6 21. d5 Ra6 22. Nc4 h5 23. Rf1 h4 24. Rxf6 gxf6 25. Nh5 Rb8 26. Rf1 Raa8 27. Nxf6+ Kg7 28. Na3 Rd8 29. Nh5+ Kh6 30. g4 hxg3 $1 31. Nxg3 Kg7 (31... Rd7 $17) 32. Nb5 Rd7 33. Nh5+ Kh6 34. Nf6 Re7 35. Kg2 Rh8 $1 36. Kg3 Kg7 $36 {[%mdl 2048] Black has the initiative.} 37. Rf5 Kf8 (37... Nf8 $1 $15) 38. Na3 Kg7 39. Nc4 (39. Nb5 $11) 39... Ra8 (39... b6 $15) 40. h4 {[#]} (40. Nh5+ $11 {keeps the balance.} Kh8 41. Nf6) 40... Nf8 $1 $17 41. Nh5+ Kh6 ({Black should play} 41... Kh8 $17) 42. Kh3 ({White should try} 42. Nf6 $15 Nh7 43. Ng4+ Kg7 44. Rf2) 42... Nh7 (42... Nd7 $17) 43. Ng3 Rd7 44. Rf2 ({Better is} 44. Rh5+ $11 Kg7 45. Kg2) 44... Kg7 45. Nf5+ Kh8 46. Nh6 Kg7 47. Nf5+ Kh8 48. Nh6 Kg7 {Accuracy: White = 50%, Black = 35%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "6.7"]
[White "Leko, Peter"]
[Black "Bu, Xiangzhi"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2674"]
[BlackElo "2729"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,91,15,34,17,22,11,9,8,0,0,19,14,48,22,34,29,46,39,78,59,61,60,83,57,64,56,57,45,42,56,51,10,18,10,31,17,46,25,27,41,43,51,48,0,0,0,46,0,19,10,19,6,10,6,51,6,14,6,6,6,6,6,60,10,68,68,68,68,71,71,71,71,71,71,79,53,53,0,79,0,53,0,79,0]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Bd3 Nf6 6. O-O {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves} Be7 7. Re1 O-O 8. Bf1 {The position is equal.} Re8 9. d4 Nbd7 10. c4 Nf8 11. h3 $146 {[%mdl 2048] White fights for an advantage.} ({Predecessor:} 11. Nc3 Ng6 12. h3 c6 13. d5 cxd5 14. Nxd5 Nxd5 15. Qxd5 {½-½ (59) Grischuk,A (2766)-Giri,A (2782) Leuven 2018}) 11... c6 12. Nc3 Bf5 13. d5 c5 14. Bf4 Ng6 15. Bh2 a6 16. Nd2 Bf8 17. Rxe8 Nxe8 18. a4 Be7 19. Nde4 Nf6 20. Bd3 {[#] And now Nxf6+ would win.} (20. Ng3 {seems wilder.} Bd7 21. Bd3 Qa5 22. Qc2 Re8 23. Nf1) 20... Nxe4 21. Bxe4 Bd7 22. Bd3 Bf6 23. Qc2 Qb6 24. Re1 Re8 25. Rxe8+ Bxe8 26. Bxg6 hxg6 27. Ne4 Be7 28. b3 Bd7 29. Bf4 Bf5 30. g4 (30. Qe2 {keeps more tension.} Kf8 31. Nd2 Qd8 32. Qf3 Bg5 33. Ne4) 30... Bxe4 $1 31. Qxe4 Kf8 32. Qd3 Qd8 33. Kg2 Bg5 34. Bh2 Bf6 35. Qe4 Qe7 (35... Kg8 $11) 36. Kf3 (36. Qxe7+ {with more complications.} Kxe7 37. Bf4 Bc3 38. Bc1 f6 39. f4) 36... Qxe4+ (36... Qd8 $11) 37. Kxe4 $11 {[%mdl 4096] Endgame KB-KB} Ke7 38. Bf4 a5 39. Be3 b6 40. f4 Bh4 41. Bd2 f6 42. Bc3 Kf7 43. Bd2 Ke7 $1 44. Bc3 Kf7 $1 45. Bd2 Ke7 $1 46. Bc3 {Accuracy: White = 41%, Black = 48%.} (46. g5 $16) 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "6.8"]
[White "Wang, Hao"]
[Black "Mamedov, Rauf"]
[Result "1-0"]
[ECO "D34"]
[WhiteElo "2735"]
[BlackElo "2650"]
[Annotator "TA"]
[PlyCount "113"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,117,21,22,14,11,6,20,9,42,0,22,23,13,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,67,67,74,58,88,0,0,0,58,41,36,104,44,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,364,328,456,0,0,0,0,0,0,0,0,-166,0,-87,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,29993,29994,29994,29995,29995,29996]} 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. dxc5 Bxc5 10. Na4 Be7 11. b3 {D34: Tarrasch Defence: 6 g3 Nf6 7 Bg2 Be7} (11. Be3 Re8 12. Rc1 Ne4 13. Nd4 Bd7 14. Nc3 Bf6 15. Nxd5 Bxd4 16. Bxd4 Be6 17. Bxe4 Bxd5 18. Bb6 Qxb6 19. Bxd5 Rad8 20. e4 Nb4 {½-½ (43) Le,Q (2714)-Boros,D (2442) Burlingame 2019}) 11... Ne4 12. Bb2 Be6 13. Rc1 {The position is equal.} Qa5 14. a3 Rac8 15. b4 Qa6 16. e3 b5 17. Nc3 $146 ({Predecessor:} 17. Nc5 Nxc5 18. bxc5 Na5 19. Ne5 Rfd8 {1-0 (42) Toth,D (2068)-Prokopisin,V (2361) Gyongyos 2004}) 17... Nxc3 18. Rxc3 Bf6 19. Rxc6 Rxc6 20. Bxf6 gxf6 21. Nd4 Rc4 22. Qh5 Qxa3 23. Qh6 {[#]} Rxd4 $1 24. exd4 Qxb4 25. Qxf6 Qd2 26. f4 Rc8 ({Better is} 26... Qe3+ $11 27. Kh1 Rc8) 27. f5 $1 $14 {[%cal Rf5e6]} Bd7 ({Worse is} 27... Rc2 28. Qd8+ Kg7 29. f6+ Kh6 30. Qf8+ Kh5 31. Bf3+ Bg4 32. Qxf7+ Kg5 33. Qg7+ Kf5 34. Be2+ Ke4 35. Qxg4+ Ke3 36. Qf4+ Kxe2 37. Qf3#) 28. Bxd5 Be8 {White should prevent ...Rc2.} 29. Qe5 (29. Rf2 $1 $16 {[%cal Rf2d2]} Qc1+ 30. Kg2) 29... Bd7 $1 $11 30. Qf6 (30. Rf2 $11 Qc1+ 31. Kg2) 30... Be8 $14 {Black wants to play ...Rc2.} 31. Rf2 $1 {[%cal Rf2d2]} Qc1+ ({Not} 31... Rc1+ $2 32. Kg2 $18) 32. Kg2 Rc2 33. Rxc2 (33. h4 $5 {[%cal Rf6e7]} Rxf2+ 34. Kxf2 Qd2+ 35. Kf3 Qd1+ 36. Kf4 $16) 33... Qxc2+ 34. Kh3 Qe2 35. Qg5+ Kf8 $1 36. f6 {[%csl Gf6][%cal Rg5g7]} Bd7+ 37. g4 Be6 $1 38. Bc6 {[%csl Gf6][%cal Rg5g7]} Qf1+ 39. Bg2 Qd3+ {[%mdl 64] Double Attack} 40. Kh4 {Intending Qf4 and mate.} Qxd4 41. Kh5 Bxg4+ $2 {[%mdl 8192] [#]} (41... Qd6 $11 {and Black is okay.} 42. h3 b4) 42. Kh6 $1 $18 {[%mdl 512] Threatening mate with Bc6.} Be6 43. Bc6 $2 ({Only move:} 43. Kxh7 $18 {[%csl Gh7][%cal Rg5g8]} Ke8 44. Qxb5+ Kd8 45. Qg5 (45. Qb8+ Bc8 $11)) 43... Qg4 $11 {Strongly threatening ...Qh3+.} 44. Qg7+ Qxg7+ 45. fxg7+ {[%mdl 4096] Endgame KB-KB} Kg8 46. Bxb5 Bf5 47. Kg5 $2 (47. Bc4 $11) 47... Be6 $2 (47... Bc2 $1 $19 48. Kf6 Bb3) 48. Kf6 {[#]} (48. Kh6 $1 $11) 48... a5 (48... Bb3 $1 $17 {Threatens to win with ...a5.} 49. Ba6 h6) 49. Ba4 $1 h5 50. h4 $1 Bc4 51. Bd1 Be6 52. Bc2 Bd7 {Hoping for ...a4.} 53. Bb3 $1 {[%cal Rb3f7] [#]} Be6 $1 {[%cal Re6b3][%mdl 512]} 54. Ba4 (54. Bxe6 fxe6) 54... Bg4 55. Bc2 Bd7 {White must now prevent ...a4.} 56. Bb3 $1 {[%cal Rb3f7] [#]} Be8 $2 {[%mdl 8192] [#]} (56... Be6 $1 $11 {[%mdl 512]} 57. Ba4 (57. Bxe6 fxe6)) 57. Ba2 {Played: Bb3-c4} 1-0

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "7.1"]
[White "Fedoseev, Vladimir"]
[Black "Korobov, Anton"]
[Result "0-1"]
[ECO "B96"]
[WhiteElo "2683"]
[BlackElo "2687"]
[Annotator "RC"]
[PlyCount "126"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "900+10"]

1. e4 {[%emt 0:00:10]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:01]} d6 {[%emt 0:00:00]} 3. d4 {[%emt 0:00:01]} cxd4 {[%emt 0:00:00]} 4. Nxd4 {[%emt 0:00:01]} Nf6 {[%emt 0:00:00]} 5. Nc3 {[%emt 0:00:02]} a6 {[%emt 0:00:00]} 6. Bg5 {[%emt 0:00:26]} e6 {[%emt 0:00:00]} 7. f4 {[%emt 0:00:05]} Qc7 {[%emt 0:00:02]} 8. Bxf6 {[%emt 0:00:46]} gxf6 {[%emt 0:00:01]} 9. Be2 {[%emt 0:00:07]} Nc6 {[%emt 0:00:18]} 10. Qd2 {[%emt 0:01:22]} Rg8 {[%emt 0:00:28]} 11. Bf3 {[%emt 0:00:17]} Nxd4 {[%emt 0:01:30]} 12. Qxd4 {[%emt 0:00:01]} Qc5 {[%emt 0:00:01]} 13. Qd3 {[%emt 0:00:56]} Bd7 {[%emt 0:00:22]} 14. O-O-O {[%emt 0:00:59]} O-O-O {[%emt 0:00:03]} 15. Kb1 {[%emt 0:00:24]} Kb8 {[%emt 0:00:15]} 16. g3 {[%emt 0:01:15]} h5 {[%emt 0:00:38]} 17. Rhe1 {[%emt 0:04:03]} h4 {[%emt 0:00:19]} 18. gxh4 {[%emt 0:00:50]} Bh6 {[%emt 0:00:28]} 19. Qd2 {[%emt 0:00:24]} Bc6 {[%emt 0:00:34]} 20. Rf1 {[%emt 0:01:05]} f5 {[%emt 0:01:02]} 21. exf5 {[%emt 0:01:25]} Bxf3 {[%emt 0:00:04]} 22. Rxf3 {[%emt 0:00:01]} Qxf5 {[%emt 0:00:01]} 23. Qf2 {[%emt 0:00:08]} d5 {[%emt 0:01:16]} 24. Ne2 {[%emt 0:00:03]} Bg7 {[%emt 0:00:51]} 25. Ng3 {[%emt 0:01:46]} Qg4 {[%emt 0:00:22]} 26. h5 {[%emt 0:00:03]} Rc8 {[%emt 0:00:22]} 27. Rg1 {[%emt 0:00:10]} Bd4 {[%emt 0:00:24]} 28. Qxd4 {[%emt 0:00:02]} Qxf3 {[%emt 0:00:02]} 29. c3 {[%emt 0:00:07]} Rg4 {[%emt 0:00:31]} 30. Rf1 {[%emt 0:00:46]} Qg2 {[%emt 0:00:02]} 31. Rf2 {[%emt 0:00:03]} Qg1+ {[%emt 0:00:11]} 32. Kc2 {[%emt 0:00:01]} Rh4 {[%emt 0:00:23]} 33. Qd2 {[%emt 0:00:17]} d4 {[%emt 0:00:34]} 34. Qxd4 {[%emt 0:00:49]} Rxh2 {[%emt 0:00:08]} 35. Qe5+ {[%emt 0:00:05]} Ka8 {[%emt 0:00:39]} 36. Rxh2 {[%emt 0:00:05]} Qxh2+ {[%emt 0:00:02]} 37. Ne2 {[%emt 0:00:01]} Rd8 {[%emt 0:00:28]} 38. c4 {[%emt 0:00:27]} Qh3 {[%emt 0:02:07]} 39. Nd4 {[%emt 0:00:02]} Rg8 {[%emt 0:00:24]} 40. Kd2 {[%emt 0:01:22]} Qg2+ {[%emt 0:00:54]} 41. Ne2 {[%emt 0:00:11]} Qg7 {[%emt 0:00:23]} 42. Qxg7 {[%emt 0:00:14]} Rxg7 {[%emt 0:00:01]} 43. Ke3 {[%emt 0:00:01]} Rg2 {[%emt 0:00:14]} 44. f5 {[%emt 0:00:16]} exf5 {[%emt 0:00:21]} 45. a4 {[%emt 0:00:20]} Kb8 {[%emt 0:00:33]} 46. Nf4 {[%emt 0:00:15]} Rxb2 {[%emt 0:00:13]} 47. Kd4 {[%emt 0:00:03]} f6 {[%emt 0:00:09]} 48. Kd5 {[%emt 0:00:05]} Rf2 {[%emt 0:00:04]} 49. Ng6 {[%emt 0:00:16]} f4 {[%emt 0:00:11]} 50. Ke4 {[%emt 0:00:17]} f3 {[%emt 0:00:03]} 51. Nf4 {[%emt 0:00:08]} Kc7 {[%emt 0:00:21]} 52. Nd5+ {[%emt 0:00:06]} Kc6 {[%emt 0:00:18]} 53. Nxf6 {[%emt 0:00:07]} Rf1 {[%emt 0:00:14]} 54. Ke3 {[%emt 0:00:13]} a5 {[%emt 0:00:15]} 55. Ne4 {[%emt 0:00:07]} Rh1 {[%emt 0:00:31]} 56. Ng3 {[%emt 0:00:05]} Rh4 {[%emt 0:00:05]} 57. Kxf3 {[%emt 0:00:05]} Kc5 {[%emt 0:00:14]} 58. Ne4+ {[%emt 0:00:08]} Kxc4 {[%emt 0:00:13]} 59. Nf6 {[%emt 0:00:02]} b5 {[%emt 0:00:09]} 60. axb5 {[%emt 0:00:08]} Kxb5 {[%emt 0:00:02]} 61. Kg3 {[%emt 0:00:01]} Rh1 {[%emt 0:00:18]} 62. Kg2 {[%emt 0:00:02]} Rd1 {[%emt 0:00:13]} 63. h6 {[%emt 0:00:02]} Rd8 {[%emt 0:00:01]} 0-1

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "7.2"]
[White "Dominguez Perez, Leinier"]
[Black "Vidit, Santosh Gujrathi"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2750"]
[BlackElo "2707"]
[Annotator "TA"]
[PlyCount "161"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,161,13,13,25,27,20,16,15,20,42,16,26,14,20,5,6,20,43,39,47,60,126,120,123,104,109,114,102,83,129,135,120,115,126,120,119,86,85,78,85,77,100,67,75,73,69,70,61,32,22,13,93,58,121,75,109,62,60,42,55,47,65,65,79,43,33,33,114,37,121,114,114,114,114,114,114,113,114,113,106,106,98,91,87,65,238,24,24,12,102,16,16,16,16,16,16,16,16,16,16,16,16,0,16,0,16,16,16,16,16,16,16,16,16,16,16,0,16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,5,5,5,5,8,8,8,8,8,0,5,0,8,8,8,8,8,8,12,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 O-O 6. Nbd2 d5 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} (6... a5 7. Nb3 Be7 8. a4 d5 9. exd5 Nxd5 10. O-O Bg4 11. h3 Bh5 12. Re1 Re8 13. Nbd2 Nb6 14. Bb5 {0-1 (65) Fedoseev,V (2702)-Wang,Y (2684) China 2019}) 7. exd5 Nxd5 8. Ne4 Be7 9. O-O Kh8 10. Re1 f6 11. Ng3 $146 ({Predecessor:} 11. Bb3 Na5 12. Bc2 c5 13. Ng3 Nc6 14. d4 cxd4 {½-½ (46) Urazayev,A (2322)-Sundararajan,K (2444) Pardubice 2017}) 11... Na5 12. Bb5 c5 13. d4 $36 {[%mdl 2048] White fights for an advantage.} cxd4 14. cxd4 Bb4 15. Re4 Nc7 (15... exd4 $14 16. Bd2 (16. Qxd4 a6 $14) (16. Rxd4 Be6 $14) (16. Nxd4 f5 $11) 16... Nc6) 16. Bd3 $16 Be7 17. dxe5 f5 18. Re1 Nc6 19. a3 Be6 20. Qc2 {[%cal Rg3f5]} Qd7 21. Bg5 Bxg5 22. Nxg5 Nd4 23. Qd1 Rad8 24. Qh5 {[%csl Gg5][%cal Rh5h7] [#]} g6 25. Qh4 Qe7 26. Qh6 Bb3 27. Rac1 Nce6 28. Nxe6 Nxe6 29. Bc4 Bxc4 30. Rxc4 Rd3 (30... Nc5 $11 {keeps the balance.}) 31. h4 Rfd8 (31... Qg7 $14 32. Qc1 Rd5) 32. h5 Qf8 33. Qxf8+ (33. Qc1 {seems wilder.} Qg7 34. Ne2 Qd7 35. Nf4 Rd1 36. Qxd1 Qxd1 37. Rxd1 Rxd1+ 38. Kh2) 33... Rxf8 34. hxg6 hxg6 35. Ne2 Rfd8 36. Nf4 Rd1 37. Kf1 Nxf4 38. Rxf4 Rxe1+ $1 39. Kxe1 $14 {[%mdl 4096] Endgame KR-KR} Re8 ({Black should try} 39... Rd5 $1 $14) 40. Rh4+ $16 Kg7 41. f4 g5 42. Rh5 ({Don't play} 42. fxg5 $6 Rxe5+ 43. Kd2 b6 $11) 42... gxf4 43. Rxf5 Kg6 44. Rxf4 Rxe5+ 45. Kd2 Rg5 46. Rf2 Rg3 47. Kc2 b5 $2 {[#]} (47... Kg7 $14) 48. Rd2 $2 (48. Rf8 $1 $18 {[%cal Rf8g8] aiming for Rg8+.} Rxg2+ 49. Kb3) 48... Kf6 49. Rd5 b4 (49... Rxg2+ $11 50. Kc3 a6) 50. a4 (50. axb4 $16 Rxg2+ 51. Kb3) 50... b3+ $11 {The position is equal.} 51. Kd2 Ke6 52. Rd3 (52. Rh5 {is more complex.} Kd6 53. Rh2 a5 54. Rh3 Rxg2+ 55. Kc3) 52... Rxg2+ 53. Kc3 Rg4 54. Kxb3 a5 55. Rh3 {Threatens to win with Rh5.} Rg5 56. Rd3 Rd5 57. Rh3 (57. Rg3 {with more complications.} Kd6 58. Kc3 Rc5+ 59. Kd3 Kc6 60. b3) 57... Kd6 58. Rh6+ (58. Rh1 {looks sharper.} Kc6 59. Rh7 Kb6 60. Rh8 Rg5 61. Ka2) 58... Kc7 59. Kc4 Rg5 60. b3 Kb7 61. Rd6 Rg4+ 62. Rd4 Rg3 63. Rd3 Rg4+ 64. Kc5 Rb4 65. Rd7+ Kb8 66. Rd3 Kb7 67. Kd6 Kb6 68. Rc3 Rd4+ 69. Ke5 Rb4 70. Kd5 Kb7 71. Kc5 Ka6 72. Re3 Kb7 73. Rf3 $1 Ka6 74. Kc6 Rb6+ 75. Kc7 Rb7+ 76. Kc8 Rb4 77. Re3 Ka7 78. Kc7 Rb7+ 79. Kc6 Rb6+ 80. Kc5 Rb4 81. Rd3 {Accuracy: White = 59%, Black = 57%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "7.3"]
[White "Le, Quang Liem"]
[Black "Ponomariov, Ruslan"]
[Result "1/2-1/2"]
[ECO "A28"]
[WhiteElo "2704"]
[BlackElo "2675"]
[Annotator "TA"]
[PlyCount "109"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,109,0,0,14,2,0,5,-15,-14,-8,-13,0,-7,-21,-15,-22,27,25,24,25,22,0,9,5,12,6,8,14,42,43,60,49,54,55,47,27,27,11,33,7,7,9,39,2,0,7,7,0,15,8,47,54,69,69,69,68,79,56,56,61,80,77,77,70,70,68,68,70,70,70,72,71,87,86,79,15,23,0,0,0,7,0,1,0,0,0,0,0,0,0,0,0,0,0,7,0,8,0]} 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e3 Be7 5. a3 d5 6. cxd5 Nxd5 7. Qc2 O-O 8. b4 {[%cal Bb2b4,Bb4b5][%mdl 32] A28: English Opening: Four Knights Variation} Nxc3 9. dxc3 Be6 (9... Qd6 10. Bd3 f5 11. e4 f4 12. h3 a5 13. Bb2 Bf6 14. Rd1 Qe7 15. O-O Be6 {0-1 (38) Carlsen,M (2837)-Bu,X (2730) Riadh 2017}) 10. e4 f6 11. Be3 a5 $146 {[%cal Ra5b4]} ({Predecessor:} 11... Qe8 12. Nd2 Qf7 13. Be2 Rfd8 14. O-O Rd7 15. Bb5 Rd6 {0-1 (42) Lorenzo de la Riva,L (2373)-Garcia Jimenez,F (2281) Barcelona 2017}) 12. b5 Nb8 13. c4 c6 14. c5 Qe8 15. Rb1 Nd7 16. bxc6 bxc6 17. Be2 f5 18. exf5 Bxf5 19. Bd3 Bxd3 20. Qxd3 Bxc5 (20... e4 {looks sharper.} 21. Qxe4 Bxc5 22. Qc4+ Qf7 23. Qxf7+ Rxf7 24. Bxc5 Nxc5 25. O-O Nd3) 21. Bxc5 Nxc5 22. Qc4+ {[%mdl 64] [#] Double Attack} Ne6 {[%cal Bc5e6,Be6c7,Bc7d5][%mdl 32]} 23. O-O $1 {[%mdl 1024] White has compensation.} ({Reject} 23. Nxe5 Rf4 $17) 23... Rf4 24. Qb3 a4 25. Qe3 Nc7 26. Rfc1 Nd5 27. Qxe5 Rf6 (27... Qg6 $5 {[%cal Rf4f3]} 28. Qg5 Qxg5 29. Nxg5 Rg4 $11) 28. Rb7 Qxe5 29. Nxe5 Re8 30. Nd7 Rf7 31. g3 (31. h3 {is interesting.} g6 32. Rxc6 Re1+ 33. Kh2 Re2 34. Rc5) 31... Rd8 (31... Rf3 {feels hotter.} 32. Rxc6 Rxa3 33. Rc5 Rd3 34. Ra7 a3) 32. Nc5 Rxb7 33. Nxb7 $14 {[%mdl 4096] Endgame KRN-KRN} Rb8 34. Nc5 Ra8 35. Rc4 Nb6 36. Rc2 h6 37. Kg2 Rd8 38. Ne4 Rd4 39. Rxc6 Nc4 40. Nc3 Nxa3 41. Ra6 Nc2 {With the idea ...a3.} 42. Nxa4 Ne1+ {[#]} 43. Kf1 $1 {[%cal Rf1e1]} Nf3 44. h3 (44. h4 $16) 44... Rc4 $11 45. Ke2 Ng1+ {The position is equal.} 46. Kd3 Rc1 (46... Rc8 {keeps more tension.} 47. Nc3 Nxh3 48. Ne4 Rd8+ 49. Ke3 Re8) 47. h4 Rf1 48. Ra8+ Kf7 49. Ra7+ Kg8 50. Ke3 Re1+ 51. Kd3 Rf1 52. Ke3 Re1+ 53. Kd3 Rf1 54. Ke3 {White wants to play Nc5.} Re1+ 55. Kd3 {Accuracy: White = 58%, Black = 63%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "7.4"]
[White "Gelfand, Boris"]
[Black "Yu, Yangyi"]
[Result "1/2-1/2"]
[ECO "A28"]
[WhiteElo "2676"]
[BlackElo "2739"]
[Annotator "TA"]
[PlyCount "178"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,178,2,4,8,6,12,12,0,17,11,14,18,37,12,16,7,33,11,36,19,13,31,45,23,14,4,36,0,2,0,0,-12,61,44,63,71,77,72,110,56,147,132,164,93,136,135,150,135,162,97,143,8,8,0,0,0,69,74,80,62,110,82,115,100,93,85,85,102,89,73,74,89,83,83,157,167,165,158,158,145,152,143,164,172,165,150,158,0,154,150,158,158,158,151,158,158,173,158,165,158,158,158,158,158,183,158,158,0,152,149,158,0,166,135,144,137,178,173,174,184,165,144,144,145,142,61,137,105,104,86,151,117,117,100,103,56,133,25,38,0,0,0,14,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e4 Bb4 5. d3 d6 6. a3 {A28: English Opening: Four Knights Variation} Bc5 7. b4 Bb6 8. Na4 Bg4 9. Nxb6 axb6 10. Bb2 Ne7 $146 ({Predecessor:} 10... Nd7 11. Be2 O-O 12. O-O Re8 13. Nd4 Nxd4 14. Bxg4 {½-½ (40) Pantsulaia,L (2585)-Korobov,A (2668) Kocaeli 2017}) 11. Be2 Ng6 12. g3 c5 13. Nd2 Qd7 14. Nf1 Bxe2 15. Qxe2 b5 16. Ne3 cxb4 17. O-O b3 18. cxb5 Qxb5 19. Nf5 {[%mdl 64] Double Attack} O-O $1 20. Nxd6 Qd7 (20... Qa6 $11 21. Nc4 Nd7) 21. Nc4 $14 Rad8 22. Rfd1 Rfe8 23. a4 h5 24. a5 (24. Ra3 $16) 24... h4 ({Better is} 24... Re6 $14) 25. Ra3 $1 $16 Qh3 26. Ne3 (26. Rxb3 $18 Re7 27. Qf1) 26... hxg3 27. fxg3 Qe6 28. Nc4 Qc6 {White should prevent ...Nxe4!} 29. Rf1 ({Much worse is} 29. Rxb3 $6 Nxe4 30. Rb6 (30. dxe4 Rxd1+ 31. Qxd1 Qxc4 $11) 30... Qc5+ 31. Qe3 Qd5 $14) (29. Rc1 $1 $18) 29... Qb5 {[#]} 30. Raa1 (30. Rc1 $1 $16) 30... Re6 $11 31. Rf5 Rc8 32. Raf1 Rxc4 (32... Ne7 $11) 33. dxc4 $14 Qxa5 34. R5f3 Rd6 {next ...Rd2 is good for Black.} 35. Rd3 Qb4 36. Rxd6 Qxd6 37. Qe3 Qc6 38. Qxb3 Qxe4 39. Bc1 Nf8 40. Qe3 Qxc4 41. Qxe5 b5 (41... Ng4 $142 42. Qf4 Qc5+ 43. Kh1 Ne5) 42. Bb2 $16 N8d7 43. Qc3 Qe4 44. Re1 Qd5 45. Qd4 Qb3 46. Bc3 Qc2 47. Qd2 Qb3 48. Qd4 Qc2 49. Ba1 Qf5 50. Rf1 Qe6 51. Rd1 Qa2 52. Qd2 Qa4 53. Rc1 Qa6 54. Qc3 Qe6 55. Re1 Qa6 56. Qd3 Qb6+ 57. Qd4 {Qxb6 is the strong threat.} Qc6 58. Rf1 Qe6 $1 59. Bb2 Qe2 60. Qc3 Qe4 $1 61. Rd1 Qe6 62. Qd3 Qb6+ {[#]} 63. Bd4 $1 {[%cal Rd4b6]} Qc6 64. Rb1 Ng4 65. Re1 ({Stronger than} 65. Qxb5 Qe4 $11) 65... Ngf6 66. Qc3 Qd5 67. Bxf6 ({White should play} 67. Qc8+ $16 Nf8 68. Qc5) 67... Nxf6 {[%mdl 4096] Endgame KQR-KQN} (67... gxf6 $14 68. Re8+ Kg7) 68. Rf1 Qd7 69. Qf3 Qd4+ (69... Ng4 $142) 70. Kh1 b4 71. h3 Qc4 72. Rd1 {Hoping for Rd8+.} Qe6 (72... Qc8 $1 $14) 73. g4 (73. Kg2 $16) 73... Nh7 $11 74. h4 Nf8 {The position is equal.} 75. h5 Nd7 76. Qd5 Qxg4 77. Qxd7 Qf3+ 78. Kg1 Qg3+ 79. Kf1 Qf3+ 80. Ke1 Qe3+ $1 81. Kf1 {White wants to mate with Qc8+.} Qf3+ 82. Kg1 Qg3+ 83. Kh1 (83. Kf1 $5 {[%cal Rd7c8]} Qf3+ $11) 83... Qf3+ $1 84. Kh2 {And now Qd5 would win.} Qf2+ 85. Kh3 {Black must now prevent Qd3.} Qf3+ 86. Kh4 Qf2+ 87. Kg4 {White threatens Qe8+ and mate.} Qg2+ 88. Kh4 {aiming for Qc8+.} Qf2+ 89. Kh3 {Threatens to win with Qd3.} Qf3+ {Accuracy: White = 53%, Black = 50%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "7.5"]
[White "Cheparinov, Ivan"]
[Black "Rapport, Richard"]
[Result "1/2-1/2"]
[ECO "E18"]
[WhiteElo "2667"]
[BlackElo "2736"]
[Annotator "TA"]
[PlyCount "189"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,189,34,22,28,15,28,-12,11,8,2,6,16,10,18,8,17,-21,0,-22,35,16,25,-36,8,7,12,12,18,-6,31,20,28,25,43,31,38,14,25,22,53,100,90,83,142,143,160,153,157,156,158,152,147,98,111,118,142,102,89,99,325,325,318,308,362,383,379,378,301,294,358,330,341,304,316,280,432,435,425,412,406,379,407,350,466,477,453,391,352,318,320,299,313,0,293,269,318,311,308,238,237,137,128,71,70,70,203,65,69,0,0,0,0,0,0,0,0,-2,-5,-12,-8,0,0,-47,-47,-70,-70,-69,-60,-70,-70,-71,-71,-71,-71,-71,-70,-71,-71,-71,-71,-71,-71,-71,-71,-71,-71,-71,-71,-71,-71,-71,-71,-71,-71,-72,-72,-72,-72,-72,-71,-72,-72,-72,-71,-71,-71,-71,-71,-71,-71,-71,0,0,0,0,0,0]} 1. d4 e6 2. c4 Nf6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Na6 8. Bf4 Ne4 {E18: Queen's Indian: Old Main Line (4 g3 Bb7 5 Bg2 Be7 6 0-0 0-0 7 Nc3)} 9. Rc1 d6 10. Qa4 $146 ({Predecessor:} 10. Nxe4 Bxe4 11. Qa4 Qc8 12. b4 c5 13. dxc5 dxc5 14. b5 Nc7 15. Rfd1 Bf6 16. Qb3 {1-0 (48) Korotylev,A (2620)-Gavrilov,A (2479) Moscow 2007}) 10... Qe8 (10... Nxc3 {seems wilder.} 11. bxc3 Nb8 12. Rb1 Be4 13. Ne1 Bxb1 14. Bxa8 Qe8) 11. Qxe8 Rfxe8 12. Rfd1 Nxc3 13. Rxc3 Bf6 14. Be3 h6 15. Nd2 Bxg2 16. Kxg2 c6 (16... e5 $11 17. Ne4 Bg5) 17. Ne4 Be7 18. Bf4 (18. g4 $11) 18... Red8 19. Rcc1 Rac8 20. Nc3 Nc7 21. Rc2 a6 22. Rdc1 Kf8 23. e4 c5 24. Be3 Bf6 25. e5 cxd4 26. Bxd4 Bxe5 27. Bxb6 Rd7 28. Na4 Ne8 (28... Na8 $142) 29. c5 $16 Rc6 30. cxd6 $1 Rxc2 31. Rxc2 Bxd6 32. Rc6 Be7 33. Ba5 Ra7 34. b4 Bd6 35. Nc5 Bxc5 36. bxc5 {[%mdl 4096] Endgame Hoping for Rc8. KRB-KRN} Ke7 $2 {[#]} (36... Ra8 $16 {keeps fighting.}) 37. Rc8 $1 $18 Rb7 38. Ra8 Rb5 39. Ra7+ (39. Rxa6 Nf6 $18) 39... Kf6 40. Bb6 Rb2 41. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} ({Much less strong is} 41. Rxa6 $6 e5 $18) 41... Ke5 42. a5 ({Resist} 42. Rxa6 Nf6 $18) ({Not} 42. Rxf7 Rc2 $18) 42... Nf6 43. Rxf7 Rc2 44. Rxg7 Nd5 (44... Ne4 $142 45. c6 Rxc6) 45. Rh7 Ne3+ 46. Kh3 Nf5 47. f3 Rc3 48. Kg4 Rc4+ 49. f4+ Ke4 50. Rh8 Rc2 51. Re8 Kd5 52. Rd8+ Ke4 53. Re8 Kd5 $1 54. Kh3 Nd4 55. Rd8+ Ke4 56. c6 Nf3 57. Kg4 (57. Rh8 $18 {aiming for c7.} Rxc6 58. Rxh6) 57... Nxh2+ $16 58. Kh5 ({Better is} 58. Kh3 {c7 is the strong threat.} Nf3 59. Rh8 Rxc6 60. Rxh6) 58... Rxc6 59. Kxh6 Nf1 {[#]} (59... Kf3 $14) 60. Kg5 (60. g4 $1 $18) 60... Nxg3 $14 61. Ra8 ({White should play} 61. Rd4+ $14 Kf3 62. Rd3+ Kg2 63. Re3) 61... Ne2 $11 62. Rxa6 Nxf4 63. Ra8 e5 64. Rg8 Nd5 65. Bd8 Rc8 66. Re8 Ra8 67. Rh8 Nf4 68. Bf6 Rxa5 69. Re8 Nd3 $1 70. Bg7 Kf3 {Strongly threatening ...e4+.} 71. Bxe5 Nxe5 $15 {KRN-KR} 72. Rf8+ Ke4 {( -> ...Nd7+)} 73. Rf4+ Kd5 74. Rf1 Ra2 75. Rd1+ Ke6 76. Kf4 Ra4+ 77. Ke3 Ng4+ 78. Kf3 Kf5 79. Rd8 Ra3+ 80. Ke2 Ke4 81. Re8+ Ne5 82. Kd2 Rd3+ 83. Ke2 Rd5 84. Re7 Ra5 85. Kd2 Kd4 86. Kc2 Rc5+ 87. Kd2 Rc8 88. Rh7 Nc4+ 89. Ke2 Nd6 90. Rd7 Rc6 91. Kd2 Ke5 92. Kd3 Ne4 (92... Ra6 $17) 93. Re7+ $11 {The position is equal.} Re6 94. Rxe6+ Kxe6 95. Kxe4 {Accuracy: White = 67%, Black = 54%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "7.6"]
[White "Andreikin, Dmitry"]
[Black "Wang, Hao"]
[Result "1-0"]
[ECO "C67"]
[WhiteElo "2722"]
[BlackElo "2735"]
[Annotator "TA"]
[PlyCount "111"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,123,18,18,24,20,17,18,23,10,20,12,42,42,42,36,35,37,64,61,48,43,57,57,57,60,74,74,74,74,74,74,104,74,74,75,93,56,75,67,92,78,64,0,99,50,70,71,72,64,72,72,72,72,72,72,80,0,72,72,72,58,58,66,213,72,72,72,72,72,72,60,72,72,72,72,72,55,55,55,72,72,120,72,109,72,72,72,72,72,72,0,72,64,83,-14,-14,-14,-21,-36,-46,-161,317,349,29977,29977,29974,29974]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1 Nxe5 8. Rxe5 O-O 9. d4 Bf6 10. Re1 Re8 {C67: Ruy Lopez: Berlin Defence: 4 0-0 Nxe4} 11. c3 Rxe1 12. Qxe1 Ne8 {The position is equal.} 13. a4 $146 {[%cal Ba2a4,Ba4a5,Ba5a6][%mdl 32]} ({Predecessor:} 13. d5 c6 14. Qd1 b6 15. Bf4 Bb7 16. dxc6 dxc6 17. Nd2 c5 18. Nc4 Qxd1 19. Rxd1 {½-½ (40) Anand,V (2774)-Caruana,F (2819) Karlsruhe/Baden Baden 2019}) 13... d5 14. a5 Qe7 15. Qxe7 Bxe7 16. a6 b6 17. Bb5 Be6 18. Na3 Bxa3 19. Rxa3 Kf8 20. Bf4 Ke7 21. Bc6 Rd8 22. Ra1 f6 23. h4 Kf7 24. f3 Nd6 25. Kf2 h5 26. Re1 Nf5 27. g3 Nd6 28. b3 Nf5 29. Bb7 Nd6 30. Bc6 Nf5 $1 31. Re2 Nd6 32. Ke1 Nf5 33. Kd2 Nd6 34. Kc2 Rg8 35. Rh2 Ke7 36. Kd2 Rd8 37. Re2 Kf7 38. Re1 Rg8 39. Bxd6 cxd6 $16 {[%mdl 4096] Endgame KRB-KRB} 40. f4 f5 {[#]} ({Better is} 40... Rc8 $14 41. Bb7 Rc7) 41. Kc2 (41. c4 $1 $18 {is the precise move to win. And now Rxe6! would win.} dxc4 42. d5) 41... Rc8 42. Bb5 Kf6 43. Kb2 Rc7 44. Re3 Rc8 45. Ka3 Rc7 46. Kb4 Rc8 47. Re1 Rc7 48. Re2 Rc8 49. Re3 Rc7 50. Be8 Bc8 51. Kb5 g6 52. Bc6 Be6 53. Re1 Re7 54. Re3 Rc7 $1 55. Bb7 Re7 {Strongly threatening ...Bd7+.} 56. Kb4 {Played: Re3xe6} 1-0

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "7.7"]
[White "Bu, Xiangzhi"]
[Black "Jones, Gawain C B"]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "2729"]
[BlackElo "2702"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,102,52,66,54,54,48,48,47,50,54,43,28,47,38,64,60,66,54,46,-17,-9,-4,0,0,0,0,0,0,0,-20,-16,-14,-14,-340,-275,-581,-564,-554,-564,-804,-787,-729,-729,-1139,-1127,-1422,-1427,-1427,-1426,-1394,-1322,-5593,-5593,-2717,-1042,-1447,-1410,-1320,-1295,-1240,-998,-2431,-2250,-1565,-1320,-29982,-29983,-29983,-29984,-29983,-29984,-29983,-29980,-29980,-29981]} 1. Nf3 c5 2. c4 g6 3. e4 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. Nc3 d6 7. Be2 Nxd4 8. Qxd4 Bg7 9. Be3 O-O 10. Qd2 Bd7 11. f3 Bc6 12. O-O a5 13. b3 Nd7 14. Rab1 Nc5 15. Rfd1 Qc7 16. Bf1 $146 {B38: Sicilian: Maroczy Bind with 5...Bg7 and 7...0-0} ({Predecessor:} 16. Nd5) 16... Rfc8 17. Kh1 Qb6 18. a3 {White is slightly better.} Qc7 19. Nd5 Qd8 20. Bg5 Bxd5 21. exd5 a4 22. b4 Nb3 23. Qe3 Bf6 24. Re1 (24. h4 $14) 24... Bxg5 25. Qxg5 e5 26. Qe3 Qh4 27. Rbd1 Nd4 28. Bd3 b6 29. Kg1 Ra7 {[%cal Ba8a7,Ba7e7,Be7e5,Be5g5][%mdl 32]} 30. f4 Re7 31. fxe5 $2 {[%mdl 8192]} (31. Rf1 $11 {and White stays safe.}) 31... Rxe5 $19 32. Qf2 $2 {[#]} (32. Qg3 Nf3+ {[%mdl 64] Double Attack, Pin} 33. Kf2 (33. gxf3 $2 Rg5 $19 {[%mdl 64] Pin}) 33... Qxg3+ 34. hxg3 Nxe1 35. Rxe1) 32... Nf3+ $1 {[%mdl 512]} 33. gxf3 (33. Qxf3 Rxe1+) 33... Rg5+ 34. Kf1 Qh3+ 35. Ke2 Rg2 {[%mdl 64] Double Attack} 36. Rf1 Re8+ 37. Kd2 Qxf3 38. Qxg2 Qxg2+ 39. Kc3 Qa2 40. Rb1 {[#]} Re3 $1 41. Rfd1 Qxh2 (41... Rh3 $142 42. b5 Qxa3+ 43. Kd4 Rh4+ 44. Ke3 {[#]} Qc3 $1 {[%mdl 512]} 45. Rh1 Rh3+ 46. Kf2 Qd4+ 47. Kg2 Qg4+ 48. Kf2 Rxd3 49. Rhf1 Rf3+ 50. Ke2 Qg2+ {[%mdl 64] Double Attack} 51. Rf2 Qxf2+ 52. Kd1 Rd3+ 53. Kc1 Qd2#) 42. c5 dxc5 43. bxc5 bxc5 44. Kc4 Qd6 45. Rb5 Qf4+ 46. Kxc5 Re8 {Played: Qf4-f3} 0-1

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "7.8"]
[White "Mamedov, Rauf"]
[Black "Leko, Peter"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "2650"]
[BlackElo "2674"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,53,21,39,0,-12,-8,-11,-11,53,46,29,42,204,213,216,216,231,239,252,206,722,709,685,676,886,879,859,868,870,859,829,818,1064,1026,1145,1118,1332,1110]} 1. e4 c5 2. Nf3 d6 3. Nc3 a6 4. g3 Nc6 5. Bg2 e6 6. O-O Be7 7. d4 cxd4 8. Nxd4 Bd7 9. Nb3 Nf6 10. g4 {B80: Sicilian Scheveningen: 6 g3 and 6 Be3, including English Attack} (10. f4 $14) (10. a4 Na5 11. h3 O-O 12. g4 h6 13. f4 Nxb3 14. cxb3 Nh7 15. Be3 a5 16. Qd2 Bc6 17. Rad1 e5 18. f5 Bg5 19. Bxg5 hxg5 {1-0 (58) Onischuk,V (2601)-Zvjaginsev,V (2679) Tallinn 2016}) 10... h6 $11 11. f4 b5 12. a3 {The position is equal.} g5 $146 (12... Rc8 $11) ({Predecessor:} 12... Rb8 13. Qe2 Qc7 14. Be3 h5 15. g5 Ng4 16. Bc1 f6 17. g6 Qa7+ {0-1 (51) Reina Guerra,E (1906)-Sanz Velez,A (2283) ICCF email 2008}) 13. e5 $1 $14 {[%cal Re5f6]} dxe5 14. fxg5 {[%mdl 64] Discovered Attack} Qb6+ $2 (14... hxg5 $14 15. Bxg5 Nd5) 15. Kh1 $18 hxg5 16. Bxg5 Nh5 17. gxh5 (17. Bxe7 $2 {is a self mate.} Ng3#) 17... Bxg5 {[#]} 18. Rxf7 $1 {[%mdl 576] Deflection, Decoy} Kxf7 $2 (18... O-O-O 19. Qd6 Be8 20. Qxe6+ Kb8) 19. Qxd7+ {[%mdl 64] Double Attack. White is clearly winning.} Ne7 {[#]} 20. Ne4 $1 {[%cal Re4g5]} Bf4 21. Nd6+ {[%mdl 64] Discovered Attack} Qxd6 22. Qxd6 Rad8 23. Qb6 Rb8 24. Qa7 Rbg8 25. Bf3 e4 26. Be2 e5 27. Rd1 1-0

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "8.1"]
[White "Korobov, Anton"]
[Black "Andreikin, Dmitry"]
[Result "1-0"]
[ECO "E17"]
[WhiteElo "2687"]
[BlackElo "2722"]
[Annotator "TA"]
[PlyCount "27"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,79,15,12,18,20,25,0,0,0,0,-7,-16,-12,-9,-16,87,0,139,131,124,128,120,118,95,72,91,89,168,68,233,172,358,166,167,189,181,189,168,122,205,207,193,172,151,81,93,0,168,56,56,59,233,97,398,385,579,578,29967,29968,29990,29991,29991,29992,29992,29993,29993,29994,29994,29995]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Re1 c6 {E17: Queen's Indian: 4 g3 Bb7 5 Bg2 Be7} 8. e4 d5 9. exd5 cxd5 {The position is equal.} 10. Ne5 Qc8 $146 ({Predecessor:} 10... Na6 11. Nc3 Nc7 12. Bf4 Rc8 13. Rc1 Ba8 {½-½ (94) Antipov,M (2580)-Tomashevsky,E (2710) Tbilisi 2017}) 11. Nc3 dxc4 12. d5 Rd8 {[%cal Rf6d5]} 13. Bg5 $1 exd5 (13... Na6 $11) 14. Bxf6 {Played: Ne5-g4} 1-0

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "8.2"]
[White "Le, Quang Liem"]
[Black "Dominguez Perez, Leinier"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2704"]
[BlackElo "2750"]
[Annotator "TA RC"]
[PlyCount "57"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,100,4,0,-8,-15,-19,0,-17,0,-14,-12,-18,-14,-15,-21,-42,-8,-1,5,0,0,0,37,28,28,32,50,53,51,42,47,44,67,35,45,30,45,53,43,30,102,114,119,87,93,19,25,25,18,27,18,0,93,101,93,89,114,19,33,9,12,41,249,24,223,239,214,214,264,250,381,387,388,377,352,357,1104,376,29991,29992,29992,29990,29992,29992,29997,29998,29998,29999,29999]} 1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. b3 Be7 5. Bb2 O-O 6. Nc3 c5 7. cxd5 Nxd5 8. h4 {A13: English Opening: 1...e6} (8. Be2 b6 9. Nxd5 exd5 10. d4 a5 11. dxc5 bxc5 12. O-O Be6 13. Bb5 Qb6 14. Qe2 Nc6 15. Rac1 Rac8 {0-1 (47) Nakamura,H (2746)-Caruana,F (2832) London 2018}) 8... b6 9. Qc2 Nb4 $146 ({Predecessor:} 9... Ba6 10. Ng5 g6 11. Nxd5 exd5 12. Nxh7 Kxh7 13. h5 f5 14. hxg6+ Kxg6 15. g4 Kf7 16. Qxf5+ {1-0 (38) Krysa,L (2533)-Beukema,J (2299) Dieren 2018}) 10. Qe4 {Hoping for Ng5.The position is equal.} N8c6 11. a3 f5 12. Qb1 Nd5 13. Nxd5 exd5 14. d4 Bf6 15. Bb5 Ne7 16. dxc5 bxc5 {White must now prevent ...Qa5+.} 17. O-O Qd6 18. Bxf6 Rxf6 19. Rd1 Rb8 20. Be2 Ba6 21. Bxa6 Qxa6 22. Qc2 Rc6 23. g3 Qb6 24. Rd3 a5 25. Qd1 Rd8 26. Ra2 a4 (26... h6 $11) 27. b4 $16 c4 28. Rc3 Qa6 29. Rc1 {Played: b4-b5} 1-0

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "8.3"]
[White "Ponomariov, Ruslan"]
[Black "Vidit, Santosh Gujrathi"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2675"]
[BlackElo "2707"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,88,31,28,32,36,56,20,31,22,18,21,17,14,31,0,27,-9,8,6,6,12,5,-33,-34,-30,-32,-38,-42,-54,-12,-13,-21,-10,-10,-12,-12,-13,0,0,0,0,0,-10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bf5 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves} (6... Bd6 7. O-O O-O 8. c4 c6 9. Re1 Bf5 10. Qb3 Qd7 11. Nc3 Nxc3 12. Bxf5 Qxf5 13. bxc3 b6 14. Bg5 dxc4 15. Qxc4 b5 16. Qb3 Nd7 17. Be7 Bxe7 18. Rxe7 {½-½ (30) Naiditsch,A (2695)-Wang,H (2726) China 2019}) 7. O-O Be7 8. Nc3 O-O 9. Re1 {[%cal Rc3e4]} Nxc3 $1 10. bxc3 Bxd3 11. Qxd3 Nd7 12. Bf4 Re8 13. h4 $146 ({Predecessor:} 13. Rab1 Nb6 14. Re2 Qd7 15. Rbe1 f6 16. Nd2 c5 {0-1 (44) Mudra,O (2200)-Koukal,V (2240) ICCF email 2003}) 13... h6 14. c4 dxc4 15. Qxc4 c5 16. Ne5 Nxe5 17. dxe5 {e6 is the strong threat.} Qd4 18. Qxd4 cxd4 19. Re4 Red8 20. Rd1 {The position is equal.} Bc5 21. e6 fxe6 22. Rxe6 Rac8 23. Rd3 Re8 24. Rxe8+ Rxe8 $11 {[%mdl 4096] Endgame KRB-KRB} 25. Kf1 Bb6 26. c3 Ba5 27. Bd2 dxc3 28. Bxc3 Bxc3 29. Rxc3 {KR-KR} Re4 30. Ra3 Rxh4 31. Rxa7 Rb4 32. a4 Rb2 33. a5 Kh7 34. a6 bxa6 35. Rxa6 h5 36. g3 Rb4 37. Kg2 h4 38. gxh4 Rxh4 39. Kg3 Rh6 40. Rxh6+ (40. Ra2 {with more complications.} Rg6+ 41. Kf4 Rf6+ 42. Kg4 Rg6+ 43. Kf4) 40... Kxh6 41. Kg4 Kg6 42. f4 Kf6 43. f5 g6 (43... Ke5 $5) 44. fxg6 Kxg6 {Accuracy: White = 69%, Black = 65%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "8.4"]
[White "Jones, Gawain C B"]
[Black "Fedoseev, Vladimir"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2702"]
[BlackElo "2683"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,104,14,17,18,25,46,32,43,23,67,27,21,31,29,0,0,-5,-22,-81,-91,-75,-98,-83,-21,-20,-16,-139,-26,-100,-102,-132,-87,-76,-71,-66,-71,-58,-63,-122,-122,-127,-127,-127,-127,-122,-101,-101,-101,-101,-101,-101,-101,-112,-75,-149,-153,-144,-125,-205,-145,-144,-28,-28,-28,-371,-371,-326,-250,-422,-422,-422,-197,-197,-197,-429,-429,-389,-314,-256,-80,-80,-80,-183,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 cxd4 5. Qxd4 a6 6. Bxd7+ Bxd7 7. Nc3 h6 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7} (7... e5 8. Qd3 Rc8 9. O-O h6 10. Nd2 Be6 11. Rd1 Nf6 12. Nf1 Bc4 13. Qf3 Bxf1 14. Kxf1 Be7 15. Qd3 Rc6 {½-½ (30) Ni,H (2674)-Fedoseev,V (2702) China 2019}) 8. e5 dxe5 9. Nxe5 Nf6 {White is slightly better.} 10. Bf4 Bb5 11. O-O-O (11. Qe3 $5 {[%cal Ra1d1]} e6 12. a4 $14 (12. Nxb5 axb5 13. O-O Be7 $11)) 11... Qxd4 12. Rxd4 e6 13. Rhd1 (13. a4 $5 {[%cal Ra4b5]} Bc5 14. Re4 $11) 13... Bc5 14. Nxb5 $146 ({Predecessor:} 14. R4d2) 14... axb5 15. Rd8+ (15. R4d2 $11) 15... Rxd8 $17 16. Rxd8+ Kxd8 17. Nxf7+ {[%mdl 64] Double Attack} Ke8 (17... Ke7 $1 $17 {[%cal Re7f7]} 18. Nxh8 Nd7) 18. Nxh8 $11 {[%mdl 4096] Endgame KBN-KBN} g5 19. Be5 (19. Bd2 $11 {keeps the balance.}) 19... Ng4 (19... Nd7 $1 $17 {[%cal Rd7e5]} 20. Bg3 Bd4) 20. Bg7 (20. Bc7 $11 {remains equal.}) 20... Nxh2 $17 21. f3 Nf1 22. Bxh6 Bd4 23. Ng6 Kf7 24. Nf8 Ng3 25. Kd1 (25. Kb1 $15) 25... Nf5 ({But not} 25... Bxb2 $6 26. Nd7 $11) 26. Nxe6 Kxe6 27. Bxg5 Bxb2 28. Ke2 Nd4+ 29. Kd3 Nc6 $1 30. Bd2 Kd5 31. f4 Ba3 32. g4 Bd6 33. c3 (33. g5 $142) 33... Na5 34. g5 Nc4 35. Bc1 (35. g6 $17 Bf8 36. Bc1) 35... Bc5 $19 36. f5 Ne5+ (36... Nd6 $17 37. f6 Nc4) 37. Kc2 $11 Ke4 38. f6 $2 {[%mdl 8192]} (38. g6 $11 {and White is okay.} Bf8 39. Ba3 {[%mdl 64] Promotion}) 38... Kf5 $19 39. Kb3 Nc4 40. a4 $2 (40. Kc2) 40... Na5+ 41. Ka2 {intending Ba3.} Kg6 42. axb5 b6 43. Kb2 $2 {[#]} (43. Ba3 Be3 44. Bb4) 43... Nc4+ $1 44. Kb3 Nd6 45. Bf4 Ne4 $2 ({Worse is} 45... Nxb5 46. Kc4 $11) (45... Kf5 $19 46. Bc1 Kg6) 46. Kc4 $17 Nxg5 {Hoping for ...Kf5.} 47. Be5 {[#]} (47. Kd5 $17) 47... Nf7 $2 ({Black should try} 47... Nf3 $1 $19 {[%cal Rf3e5]} 48. Bc7 Kxf6) 48. Bd4 $1 $11 {The position is equal.} Bxd4 49. Kxd4 Kxf6 {Strongly threatening ...Ke6.} 50. c4 Nd8 (50... Ke6 $5 51. c5 $8 bxc5+ 52. Kxc5 Ng5 $11) 51. Kd5 Ke7 52. c5 bxc5 {Accuracy: White = 32%, Black = 62%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "8.5"]
[White "Yu, Yangyi"]
[Black "Wang, Hao"]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "2739"]
[BlackElo "2735"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,95,0,0,0,0,10,0,0,-6,0,-29,-31,-37,-44,-29,-25,-96,-77,-118,-115,-149,-150,-200,-165,-122,-141,-161,-56,-66,-35,-30,-47,-40,0,0,0,0,18,11,53,0,0,0,0,0,0,-2,-2,-2,-2,-2,0,-12,7,8,48,40,46,0,0,0,216,213,306,304,332,329,473,473,549,549,593,592,552,552,674,654]} 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 a6 8. Qxc4 b5 9. Qc2 Bb7 10. Bd2 Be4 11. Qc1 c6 {E05: Open Catalan: 5 Nf3 Be7} 12. a4 Nbd7 13. Nc3 Bg6 {The position is equal.} 14. Nh4 Bh5 {[#]} 15. Bf3 $146 ({Predecessor:} 15. h3 Nd5 16. axb5 axb5 17. Rxa8 Qxa8 18. e4 Nb4 19. Bg5 {½-½ (85) Caruana,F (2828)-Dominguez Perez,L (2739) Saint Louis 2019}) 15... b4 16. Na2 Bxf3 17. Nxf3 c5 $36 {[%mdl 2048] Black has good play.} 18. Rd1 (18. dxc5 $11 {keeps the balance.} a5 19. Be3) 18... a5 19. dxc5 Bxc5 20. Be3 Qb6 21. Bd4 Bxd4 22. Rxd4 Nc5 {White must now prevent ...Nb3.} 23. Qd1 Rfd8 (23... Rfe8 $1 $19 {Threatens to win with ...e5.} 24. Rc1 e5) 24. e3 $1 $15 Rxd4 25. exd4 Nce4 26. Nc1 h6 27. Nd3 Rd8 28. Rc1 g5 29. h3 h5 30. Qc2 (30. Qe1 $1 $14) 30... g4 $11 31. hxg4 hxg4 32. Nfe5 Rxd4 33. Qc8+ Rd8 34. Qc7 Qxc7 35. Rxc7 Ng5 36. Kg2 Rd5 37. Rc5 Rd4 38. Rxa5 {Rb5 is the strong threat.} Nd5 $1 {Threatening ...f6.} 39. Ra8+ Kg7 {Hoping for ...f6.} 40. Ra7 Kg8 $2 (40... Kh6 $1 $11) 41. a5 $18 b3 (41... f6 $142) 42. a6 Ra4 43. Nc5 $1 {[%csl LRa4,LRb3][%cal Rc5a4]} Ra2 (43... Ra5 {was called for.} 44. Nxb3 Ra4) 44. Rb7 {White is clearly winning.} Rxb2 {[#]} 45. a7 $1 {[%cal Ra7a8]} Ra2 46. Rb8+ Kg7 47. a8=Q Ne3+ {[#]} 48. Kh1 $1 {Accuracy: White = 63%, Black = 43%.} 1-0

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "8.6"]
[White "Rapport, Richard"]
[Black "Bu, Xiangzhi"]
[Result "1/2-1/2"]
[ECO "C32"]
[WhiteElo "2736"]
[BlackElo "2729"]
[Annotator "TA"]
[PlyCount "183"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,183,11,3,0,8,-12,-2,-23,-2,-25,-23,-23,-14,-22,0,0,0,-15,-23,-24,-16,-14,-13,-14,-1,-15,-16,-15,-11,-8,-6,-15,-8,-12,-7,-27,-24,-27,-25,-29,-25,-43,-17,-12,-15,-11,-22,-19,-24,-35,-31,-70,-63,-92,-4,-29,-29,-122,-20,-97,-29,-33,-8,-8,-8,-15,-8,-15,-8,-33,-29,-30,-15,-15,-15,-16,-15,-29,-16,-16,-9,-23,-8,-8,-8,-8,-5,-5,-5,-8,-8,-8,-8,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,0,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-8,-8,0,0,0,-29,0,-29,-29,-29,0,-29,0,0,0,0,0,0,0,0,0,-32]} 1. e4 e5 2. f4 d5 3. exd5 e4 4. Nc3 Nf6 5. d3 Bb4 6. Bd2 e3 7. Bxe3 O-O {[#] ...Re8 is the strong threat.} 8. Be2 {C32: Falkbeer Counter Gambit: 3 exd5 e4 4 d3 Nf6} Nxd5 9. Bd2 Bxc3 10. bxc3 Qf6 11. c4 (11. Rb1 {is more complex.} Nxc3 12. Bxc3 Qxc3+ 13. Qd2 Qa3 14. c3) (11. Qc1 Re8 12. c4 Nc3 13. Qb2 Nxe2 14. Qxf6 gxf6 {0-1 (14) Gurkin,A (2276)-Kazhgaleyev,M (2582) Almaty 2016}) 11... Nxf4 12. Bxf4 Qxf4 13. Nf3 $146 ({Predecessor:} 13. Qd2 Qh4+ 14. g3 Qf6 15. c3 {0-1 (23) Sokol,M (2020)-Szamos,A (2170) Prievidza 1998}) 13... Nc6 14. Qd2 Qd6 15. d4 Bg4 {aiming for ...Bxf3.} 16. c5 Qd7 17. c3 Bxf3 18. Bxf3 Rae8+ 19. Kf2 b6 20. cxb6 axb6 21. Rhe1 Ne5 22. Be2 Ng4+ 23. Kg1 Nf6 24. Bf3 Rxe1+ 25. Rxe1 Re8 26. Rxe8+ Nxe8 27. c4 Nd6 28. c5 Nf5 29. cxb6 cxb6 30. d5 Qc7 31. g3 g6 32. Kg2 Qc5 33. Qf4 Nd6 ({Better is} 33... Ne3+ $17 34. Kh3 h5 35. Qb8+ Kg7 36. Qe5+ f6) 34. g4 b5 35. Qf6 (35. g5 $11) 35... Qc2+ (35... Qa3 $17 36. h4 Qxa2+ 37. Kg3 Qa3) 36. Kh3 (36. Kg3 $1 $11 Qc5 37. Qe5) 36... Qc7 (36... Qf2 $17 37. Qf4 Nc4) 37. Qf4 Qe7 38. Kg2 Kg7 39. a4 bxa4 40. Qxa4 Qe5 41. Qc2 (41. Qb4 {feels hotter.} Qf6 42. Kf2 h6 43. Kg3 Qe5+ 44. Kh3) 41... Qd4 42. Qd1 Qxd1 (42... Qc3 {keeps more tension.} 43. Qe2 h6 44. Kf2 Qf6 45. Kg2 Qd4) 43. Bxd1 $11 {[%mdl 4096] Endgame KB-KN} Kf6 44. Kf3 Ke5 45. Bb3 f6 46. Ke3 Nc8 47. h4 Ne7 48. d6 Kxd6 49. Ke4 Nc6 50. Bg8 h6 51. Bb3 Ke7 52. Ba4 Ne5 53. g5 Nf7 54. gxf6+ Kxf6 55. Kf4 Nd6 56. Kg4 Ne4 57. Bc2 Nc5 58. Kf4 Ne6+ 59. Kg4 Nd4 60. Bd3 h5+ 61. Kh3 Nf5 62. Bb5 Nd6 63. Bd3 Nf5 64. Bb5 $1 Ke5 65. Be8 Ne7 66. Kg3 Ke4 67. Bf7 $1 Kf5 68. Be8 Nd5 69. Bd7+ Ke5 70. Be8 Ne7 71. Bf7 Kf6 72. Bb3 Nf5+ 73. Kh3 Nd4 74. Bc4 Ke5 75. Bf7 Ne2 76. Be8 Kf5 77. Kh2 Nc3 78. Bd7+ Ke5 79. Be8 Kf6 80. Kh3 Ne4 81. Ba4 Kf5 82. Bd7+ Ke5 83. Be8 Kf6 84. Ba4 Nc3 85. Bc2 Nd5 86. Kg3 Ne7 87. Ba4 Ke5 88. Be8 {The position is equal.} Ke4 89. Bf7 Ke5 90. Be8 Ke4 91. Bf7 Ke5 92. Be8 {Accuracy: White = 70%, Black = 57%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "8.7"]
[White "Cheparinov, Ivan"]
[Black "Mamedov, Rauf"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2667"]
[BlackElo "2650"]
[Annotator "RC"]
[PlyCount "174"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "900+10"]

1. Nf3 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:11]} 3. c4 {[%emt 0:00:00]} e6 {[%emt 0:00:03]} 4. g3 {[%emt 0:00:01]} c5 {[%emt 0:00:01]} 5. cxd5 {[%emt 0:00:19]} exd5 {[%emt 0:00:02]} 6. Bg2 {[%emt 0:00:02]} Nc6 {[%emt 0:00:01]} 7. O-O {[%emt 0:00:08]} Be7 {[%emt 0:00:01]} 8. dxc5 {[%emt 0:00:53]} Bxc5 {[%emt 0:00:01]} 9. Bg5 {[%emt 0:00:36]} O-O {[%emt 0:01:09]} 10. Nc3 {[%emt 0:00:02]} d4 {[%emt 0:00:07]} 11. Ne4 {[%emt 0:00:04]} Be7 {[%emt 0:00:02]} 12. Nxf6+ {[%emt 0:00:02]} Bxf6 {[%emt 0:00:01]} 13. Bxf6 {[%emt 0:00:03]} Qxf6 {[%emt 0:00:01]} 14. Rc1 {[%emt 0:00:31]} Re8 {[%emt 0:00:50]} 15. Qd2 {[%emt 0:00:14]} Bg4 {[%emt 0:00:09]} 16. h3 {[%emt 0:00:52]} Be6 {[%emt 0:00:02]} 17. b4 {[%emt 0:00:17]} a6 {[%emt 0:01:56]} 18. Ne1 {[%emt 0:00:34]} Rad8 {[%emt 0:00:38]} 19. Nd3 {[%emt 0:00:28]} Bd5 {[%emt 0:00:02]} 20. Rc5 {[%emt 0:00:23]} Bxg2 {[%emt 0:00:03]} 21. Kxg2 {[%emt 0:00:02]} Ne7 {[%emt 0:01:42]} 22. Qf4 {[%emt 0:00:29]} Qe6 {[%emt 0:00:01]} 23. Qf3 {[%emt 0:00:02]} Nd5 {[%emt 0:01:59]} 24. Re1 {[%emt 0:00:14]} h6 {[%emt 0:00:21]} 25. a3 {[%emt 0:00:31]} b6 {[%emt 0:00:20]} 26. Rcc1 {[%emt 0:00:16]} Rc8 {[%emt 0:01:09]} 27. Nf4 {[%emt 0:00:54]} Nxf4+ {[%emt 0:00:06]} 28. Qxf4 {[%emt 0:00:01]} Rc3 {[%emt 0:01:23]} 29. Rcd1 {[%emt 0:01:11]} Qc6+ {[%emt 0:00:13]} 30. Kg1 {[%emt 0:00:13]} Re4 {[%emt 0:00:10]} 31. Qb8+ {[%emt 0:00:13]} Kh7 {[%emt 0:00:39]} 32. Qd8 {[%emt 0:00:01]} Qe6 {[%emt 0:02:18]} 33. Rxd4 {[%emt 0:00:53]} Rxe2 {[%emt 0:00:04]} 34. Rxe2 {[%emt 0:00:01]} Qxe2 {[%emt 0:00:01]} 35. Rd1 {[%emt 0:00:01]} Rxa3 {[%emt 0:00:07]} 36. Qd5 {[%emt 0:00:10]} Rf3 {[%emt 0:00:22]} 37. Rf1 {[%emt 0:00:04]} b5 {[%emt 0:00:24]} 38. h4 {[%emt 0:00:27]} Rf6 {[%emt 0:00:55]} 39. Qd1 {[%emt 0:00:16]} Rxf2 {[%emt 0:01:11]} 40. Qb1+ {[%emt 0:00:04]} Qc2 {[%emt 0:00:01]} 41. Qxc2+ {[%emt 0:00:02]} Rxc2 {[%emt 0:00:01]} 42. Rxf7 {[%emt 0:00:02]} Rc4 {[%emt 0:00:07]} 43. Ra7 {[%emt 0:00:04]} Rxb4 {[%emt 0:00:01]} 44. Rxa6 {[%emt 0:00:01]} Rb2 {[%emt 0:00:04]} 45. h5 {[%emt 0:00:04]} b4 {[%emt 0:02:43]} 46. Rb6 {[%emt 0:02:11]} b3 {[%emt 0:00:06]} 47. Rb7 {[%emt 0:00:09]} Kg8 {[%emt 0:00:01]} 48. Kf1 {[%emt 0:02:02]} Kf8 {[%emt 0:00:11]} 49. Ke1 {[%emt 0:00:22]} Rb1+ {[%emt 0:00:31]} 50. Kf2 {[%emt 0:00:22]} b2 {[%emt 0:00:22]} 51. Kg2 {[%emt 0:00:03]} Ke8 {[%emt 0:00:01]} 52. Kh2 {[%emt 0:01:18]} Kd8 {[%emt 0:00:01]} 53. Kg2 {[%emt 0:00:01]} Kc8 {[%emt 0:00:00]} 54. Rb3 {[%emt 0:00:02]} Kc7 {[%emt 0:00:01]} 55. Kh2 {[%emt 0:00:04]} Kc6 {[%emt 0:00:00]} 56. Kg2 {[%emt 0:00:04]} Kc5 {[%emt 0:00:01]} 57. Rb8 {[%emt 0:00:02]} Kd5 {[%emt 0:00:01]} 58. Rb7 {[%emt 0:00:06]} Ke4 {[%emt 0:00:02]} 59. Rb4+ {[%emt 0:00:27]} Kf5 {[%emt 0:00:08]} 60. Kh2 {[%emt 0:00:23]} Kf6 {[%emt 0:00:06]} 61. Rb5 {[%emt 0:00:05]} Ke6 {[%emt 0:00:01]} 62. Kg2 {[%emt 0:00:02]} Kd6 {[%emt 0:00:01]} 63. Rb8 {[%emt 0:00:07]} Kd5 {[%emt 0:00:02]} 64. Rb5+ {[%emt 0:00:17]} Kc4 {[%emt 0:00:06]} 65. Rb8 {[%emt 0:00:01]} Kd3 {[%emt 0:00:11]} 66. Rd8+ {[%emt 0:00:12]} Ke4 {[%emt 0:00:06]} 67. Rb8 {[%emt 0:00:04]} Kf5 {[%emt 0:00:02]} 68. Rb5+ {[%emt 0:00:11]} Kg4 {[%emt 0:00:04]} 69. Kh2 {[%emt 0:00:03]} Kf3 {[%emt 0:00:01]} 70. Rb3+ {[%emt 0:00:01]} Kf2 {[%emt 0:00:35]} 71. Rb5 {[%emt 0:00:07]} Ke3 {[%emt 0:00:08]} 72. Rb8 {[%emt 0:00:17]} Kf3 {[%emt 0:00:25]} 73. Rb3+ {[%emt 0:00:10]} Kf2 {[%emt 0:00:20]} 74. Rb8 {[%emt 0:00:05]} Kf1 {[%emt 0:00:20]} 75. Rb7 {[%emt 0:00:09]} Ke2 {[%emt 0:00:33]} 76. Kg2 {[%emt 0:00:05]} Kd3 {[%emt 0:00:04]} 77. Rd7+ {[%emt 0:00:06]} Kc4 {[%emt 0:00:05]} 78. Rb7 {[%emt 0:00:05]} Kd5 {[%emt 0:00:02]} 79. Rb5+ {[%emt 0:00:04]} Ke4 {[%emt 0:00:02]} 80. Rb4+ {[%emt 0:00:08]} Kd3 {[%emt 0:00:05]} 81. Rb8 {[%emt 0:00:04]} Ke4 {[%emt 0:00:12]} 82. Rb4+ {[%emt 0:00:02]} Kf5 {[%emt 0:00:02]} 83. Rb5+ {[%emt 0:00:07]} Kg4 {[%emt 0:00:01]} 84. Kh2 {[%emt 0:00:20]} Kf3 {[%emt 0:00:00]} 85. Rb3+ {[%emt 0:00:01]} Kf2 {[%emt 0:00:00]} 86. Rb5 {[%emt 0:00:03]} Kf1 {[%emt 0:00:00]} 87. Rb8 {[%emt 0:00:09]} Ke2 {[%emt 0:00:00]} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.15"]
[Round "8.8"]
[White "Leko, Peter"]
[Black "Gelfand, Boris"]
[Result "1/2-1/2"]
[ECO "B30"]
[WhiteElo "2674"]
[BlackElo "2676"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,71,13,14,33,41,30,31,16,29,16,26,28,19,39,0,0,-17,-16,-18,-18,-18,-20,-22,-35,-32,-32,-40,-29,-37,0,0,0,-6,9,8,13,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. d4 cxd4 6. Nxd4 Ng6 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6} 7. Be2 Be7 8. c4 Nxd4 {White is slightly better.} 9. Qxd4 O-O 10. Nc3 b6 11. Be3 Bb7 12. Rfd1 Bc6 13. Rac1 $146 ({Predecessor:} 13. Qd2 Qb8 14. Bf1 {½-½ (46) Balogh,C (2632)-Rogozenco,D (2516) Germany 2013}) 13... f5 14. exf5 Nh4 15. fxe6 Nxg2 16. Nd5 Nxe3 17. Nxe7+ Qxe7 18. Qxe3 {[#] And now exd7 would win.} dxe6 19. c5 bxc5 20. Rxc5 {The position is equal.} Bb7 21. Re5 Qf6 22. Rxe6 Qxb2 23. Qb3 Qxb3 24. axb3 Bf3 25. Rd7 {Ree7! is the strong threat.} Bxe2 26. Rxe2 $11 {[%mdl 4096] Endgame KRR-KRR} Rf7 27. Ree7 Rxe7 28. Rxe7 {KR-KR} Rb8 29. Rxa7 Rxb3 30. Kg2 h6 31. Rc7 Kh7 32. Ra7 Kg6 33. Rc7 Kh7 34. Ra7 Kg6 35. Rc7 Kh7 36. Ra7 {Accuracy: White = 55%, Black = 76%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "9.1"]
[White "Gelfand, Boris"]
[Black "Korobov, Anton"]
[Result "1/2-1/2"]
[ECO "D12"]
[WhiteElo "2676"]
[BlackElo "2687"]
[Annotator "TA"]
[PlyCount "118"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,118,27,28,15,27,36,37,32,21,0,19,14,17,1,16,0,8,7,4,14,15,-12,0,-23,-20,-38,-12,-27,-31,-27,-30,-16,0,-20,0,-9,0,-66,-48,-84,-80,-68,-62,-71,-81,-67,-75,-79,-63,-124,-115,-124,-118,-154,-124,-112,-116,-130,-117,-129,-121,-193,-202,-196,-95,-106,0,-187,-192,-186,-184,-176,-178,-190,-171,-158,-162,-165,-162,-151,-119,-131,-25,-24,-32,-22,-18,-18,-18,-18,-18,-18,-12,-12,-12,-12,-12,-12,-12,-12,-12,-12,-12,-18,-18,-18,-18,-18,-8]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. Nc3 e6 6. Nh4 Bg6 7. Be2 {D12: Slav Defence: 3 Nf3 Nf6 4 e3 Bf5} Nbd7 8. O-O Bd6 9. g3 {White is slightly better.} dxc4 10. Nxg6 hxg6 11. Bxc4 Qe7 12. Bd2 Rd8 13. Be2 e5 14. Bf3 e4 15. Bg2 O-O 16. f3 exf3 17. Qxf3 Bc7 18. Rad1 Bb6 19. Kh1 Rfe8 20. a3 Nf8 21. b4 Ne6 22. Ne4 {[%cal Re4f6]} Nd5 23. g4 Bc7 24. Qh3 (24. g5 $11) 24... Nf6 $15 25. Nc5 Nxc5 26. bxc5 Ne4 27. Bxe4 Qxe4+ 28. Qf3 Qe6 29. Rde1 Rd5 30. Qg2 (30. Bc3 $15 Rg5 31. e4 Rxg4 32. d5) 30... b6 $17 31. cxb6 axb6 32. Rf2 Bd6 33. Ref1 f6 34. Bc1 b5 35. h3 c5 36. dxc5 (36. Bb2 $17) 36... Bxc5 $19 37. Rc2 Re5 (37... Qe5 $19 {and Black stays clearly on top.} 38. Qh2 Qe7) 38. Bb2 $17 Rd5 (38... Rg5 $17 39. e4 Qxe4 40. Qxe4 Rxe4) 39. Bc1 $1 $19 Kh7 40. e4 Qxe4 41. Qxe4 Rxe4 42. Kg2 f5 43. gxf5 gxf5 44. Rf3 Bd6 45. Rb3 f4 46. Kf3 Re1 (46... Re6 $17 47. h4 Rh6) 47. Rd2 $1 $11 {[%cal Rd2d5]} Rxd2 48. Bxd2 {[%mdl 4096] Endgame KRB-KRB} Ra1 {The position is equal.} 49. Rxb5 Rxa3+ 50. Ke4 Rxh3 51. Rd5 Bb8 {Hoping for ...Rb3.} 52. Rb5 Bc7 53. Rb7 Bd6 54. Rd7 f3 {[#] ...f2 is the strong threat.} 55. Be3 Rh4+ 56. Kxf3 Be5 57. Re7 Bf6 58. Re4 Rxe4 59. Kxe4 g5 {Accuracy: White = 60%, Black = 64%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "9.2"]
[White "Jones, Gawain C B"]
[Black "Le, Quang Liem"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "2702"]
[BlackElo "2704"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,80,23,35,16,16,16,25,10,23,8,15,28,28,0,4,0,7,0,13,-24,0,-24,-9,-24,-24,-17,0,-79,-72,-87,-87,-83,-54,-57,-56,-115,-105,-114,-100,-133,-79,-95,-7,-15,-13,0,-15,-90,-114,-498,-485,-470,-487,-479,-487,-679,-646,-1064,-1023,-989,-586,-925,-931,-911,-904,-1160,-1123,-4817,-2622,-29989,-29990]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 e5 6. Bxc6 dxc6 7. a4 {B31: Sicilian: 2...Nc6 3 Bb5 g6} Nh6 8. d3 Qe7 9. h3 {White has an edge.} O-O 10. Be3 {And now Qd2 would win.} f6 11. c3 Nf7 12. d4 cxd4 13. cxd4 exd4 14. Bxd4 c5 15. Bc3 b6 {[%cal Bb7b6,Bb6b5][%mdl 32]} 16. Qe2 Bb7 17. Nbd2 Rfe8 $36 {[%mdl 2048] Black fights for an advantage.} 18. a5 Bc6 19. b3 {[#]} (19. Qa6 $11) 19... b5 $1 $17 20. Rac1 Rac8 {[%cal Ba8c8,Bc8d8,Bd8d3][%mdl 32]} 21. Bb2 a6 22. Qe3 Bb7 23. Qf4 (23. Nh2 $15) 23... Rcd8 24. Rc2 Rd3 25. h4 Nd8 (25... Red8 $142 26. Re2 Ne5) 26. h5 g5 (26... Ne6 $17 27. Qg4 Qf7) 27. Qf5 $11 Nf7 28. e5 $1 Rd5 {Threatens to win with ...Nh6.} 29. Rcc1 (29. Ne4 $11 {remains equal.}) 29... fxe5 {Strongly threatening ...e4.} 30. Qg4 $2 {[%mdl 8192] [#]} (30. Qc2 $17) 30... Nh6 $1 $19 {[%cal Rh6g4]} 31. Qg3 g4 32. Ne4 gxf3 33. gxf3 Rd3 34. Nxc5 Rxf3 35. Qg2 Rxf2 {Played: Rf3xb3} 0-1

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "9.3"]
[White "Fedoseev, Vladimir"]
[Black "Yu, Yangyi"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2683"]
[BlackElo "2739"]
[Annotator "TA"]
[PlyCount "126"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,126,14,18,14,2,8,16,12,0,30,31,29,23,30,18,23,17,17,17,18,39,20,0,16,0,54,52,39,17,30,11,12,18,22,16,90,79,99,0,25,-69,-65,-68,0,0,0,0,0,-75,-79,-129,-93,-94,-81,-83,-91,-89,-81,-127,-133,-114,-83,-103,-118,-119,-87,-71,-87,-95,-83,-104,-20,-16,0,0,0,0,0,-20,-8,-8,-8,-8,-8,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 4. O-O Be7 5. d4 O-O 6. c4 dxc4 7. Qc2 a6 8. a4 Bd7 9. Qxc4 Bc6 10. Bf4 Bd6 {E05: Open Catalan: 5 Nf3 Be7} 11. Qc1 Nbd7 12. Nc3 Qe7 13. a5 {[#]} Bxf3 $146 ({Predecessor:} 13... h6 14. Re1 Bxf3 15. Bxf3 Bxf4 16. Qxf4 c6 17. Red1 Rfe8 18. Qe3 {1-0 (55) Wojtaszek,R (2737)-Adams,M (2727) Heraklio 2017}) 14. Bxf3 Bxf4 15. Qxf4 c6 16. Qd2 Rad8 17. Qc2 e5 18. d5 e4 19. Nxe4 Nxd5 20. Ra3 N5f6 21. Re3 g6 (21... Nd5 $11 22. Ra3 Nc7) 22. Nxf6+ $14 Qxf6 23. Rb3 Rb8 24. Bg4 Rfd8 25. Rd1 Ne5 26. Bh3 Qe7 (26... Rxd1+ $11 {keeps the balance.} 27. Qxd1 Nc4) 27. Rxd8+ Rxd8 {[#]} 28. Kg2 ({But not} 28. f4 $6 Nd7 $11) (28. Re3 $1 $16) 28... Rd4 29. e3 (29. Re3 $11 Qf6 30. b3) 29... Rd5 $15 30. Qc3 Nd3 ({Black should try} 30... c5 $15 31. Rb6 Rd3) 31. Bg4 $1 $11 Nc5 32. Rb4 Ne4 33. Qc4 {[#]} (33. Rxe4 $1 $11 Qxe4+ {[%mdl 64] Double Attack} 34. Bf3) 33... Nd6 $1 $36 {[%cal Rd6c4][%mdl 2048] White is under strong pressure.} 34. Qf4 Rxa5 35. Rd4 Rd5 36. Rxd5 cxd5 37. Bf3 Ne4 38. h4 h5 39. Bd1 Qf6 40. Qxf6 Nxf6 {[%mdl 4096] Endgame KB-KN} 41. Kf3 Kf8 42. Kf4 Ke7 43. f3 Ke6 44. b4 b6 (44... Nd7 $17 45. Kg5 Ne5) 45. Bb3 $11 {The position is equal.} a5 46. bxa5 bxa5 47. e4 Ke7 48. e5 Nd7 49. Bxd5 a4 50. Ke4 f6 51. f4 fxe5 52. fxe5 Nc5+ 53. Kd4 Ne6+ 54. Ke4 a3 55. Ba2 Ng7 56. Kf4 Ne6+ 57. Ke4 Nc5+ 58. Kd4 Ne6+ 59. Ke4 Kd7 60. Ke3 Nc5 61. Kd4 Ne6+ 62. Ke3 Nd8 63. Kf4 {Threatens to win with Kg5.} Ne6+ {Accuracy: White = 65%, Black = 57%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "9.4"]
[White "Dominguez Perez, Leinier"]
[Black "Ponomariov, Ruslan"]
[Result "1-0"]
[ECO "C11"]
[WhiteElo "2750"]
[BlackElo "2675"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,53,14,0,7,0,0,0,0,-10,0,0,15,15,14,0,0,0,0,0,5,2,342,334,316,326,636,636,636,636,636,636,636,636,636,628,602,602,594,590]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 a6 8. Qd2 Be7 9. Be2 b5 {C11: French: Classical System: 4 e5 and 4 Bg5 dxe4} 10. a3 O-O 11. O-O Bb7 {The position is equal.} 12. Rad1 (12. Nd1 f6 13. c3 Rc8 14. Bd3 Na5 15. Qe2 fxe5 16. fxe5 cxd4 17. cxd4 {1-0 (38) Grischuk,A (2761)-Caruana,F (2808) Paris 2017}) 12... Rc8 13. dxc5 Nxc5 14. Nd4 Qc7 15. Nxc6 {[#]} Qxc6 $146 ({Predecessor:} 15... Bxc6 16. Bd4 g6 17. Qe3 {1-0 (29) Mekhitarian,K (2511)-Drozdovskij,Y (2587) Beijing 2008}) 16. Bd4 Ne4 17. Nxe4 dxe4 18. Qe3 $1 Qxc2 $2 {[%mdl 8192]} (18... a5 $11 {and Black is okay.}) 19. Rc1 $18 Qa4 {[#]} 20. b4 $1 {Hoping for Bd1.} Bd5 $2 (20... Rxc1 21. Rxc1 Rd8) 21. Rxc8 {White is clearly winning.} ({Weaker is} 21. Bd1 Rxc1 22. Bxa4 Rxf1+ 23. Kxf1 bxa4 $16) 21... Rxc8 22. Bd1 Rc2 23. Bxc2 Qxc2 24. Rc1 Qd3 25. Rc8+ Bf8 26. Qxd3 exd3 27. Bc5 {Accuracy: White = 76%, Black = 40%.} 1-0

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "9.5"]
[White "Vidit, Santosh Gujrathi"]
[Black "Bu, Xiangzhi"]
[Result "1/2-1/2"]
[ECO "D45"]
[WhiteElo "2707"]
[BlackElo "2729"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,92,20,22,20,24,-1,20,23,29,8,12,8,14,12,10,18,16,11,15,21,45,5,7,6,12,5,12,13,6,0,5,2,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-4,-4,-4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 c6 3. Nf3 $146 ({Predecessor:} 3. Nc3 Nf6 4. e3 e6 {½-½ (25) Gelfand,B (2727)-Anand,V (2791) Moscow 2012}) 3... Nf6 4. Nc3 e6 5. e3 a6 6. b3 Bb4 7. Bd2 Nbd7 8. Bd3 O-O 9. O-O {D45: Semi-Slav: 5 e3} Bd6 10. Rc1 e5 (10... b6 {is more complex.} 11. e4 dxc4 12. Bxc4 e5 13. d5 Bb7) 11. cxd5 cxd5 {aiming for ...e4.} 12. e4 (12. Nxe5 {feels hotter.} Nxe5 13. dxe5 Bxe5 14. Ne2 Qe7 15. Bc3) 12... dxe4 13. Nxe4 Nxe4 14. Bxe4 Nf6 15. dxe5 Nxe4 16. exd6 Qxd6 17. Be3 {[#] Hoping for Qxd6.} Bg4 18. Qxd6 Nxd6 {The position is equal.} 19. Ne5 Be6 20. Rfd1 Rfd8 21. Bb6 {[#] h3 is the strong threat.} Rdc8 $1 22. Nd3 Rxc1 23. Rxc1 Rc8 24. Rxc8+ Nxc8 $11 {[%mdl 4096] Endgame KBN-KBN} 25. Be3 f6 26. f3 Kf7 27. Kf2 Ne7 28. Bd2 Nd5 29. Nf4 Nxf4 30. Bxf4 {KB-KB} Ke7 31. Ke3 Kd7 32. Kd4 Kc6 33. Bd2 Bf5 34. a4 Bc2 35. Kc4 b5+ 36. axb5+ axb5+ 37. Kc3 Bd1 38. b4 Kd5 39. Kd3 Bb3 40. Bf4 Bc4+ 41. Ke3 Ke6 42. Kf2 Kf7 43. Bd6 Ke6 44. Bf8 Kf7 45. Bd6 Ke6 46. Bf8 Kf7 {Accuracy: White = 73%, Black = 80%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "9.6"]
[White "Wang, Hao"]
[Black "Rapport, Richard"]
[Result "1/2-1/2"]
[ECO "A40"]
[WhiteElo "2735"]
[BlackElo "2736"]
[Annotator "TA"]
[PlyCount "148"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,148,25,27,24,35,35,43,28,30,0,3,-4,0,-20,0,-27,-23,-57,-23,-29,-2,-39,-18,-45,0,0,0,0,4,4,7,0,0,0,0,-8,0,0,6,6,6,3,7,0,12,5,20,0,0,0,0,0,0,-5,-5,-6,-6,-6,0,0,0,0,0,0,0,0,0,-6,-6,-6,-6,-6,-6,-13,-13,-13,-13,-13,-13,-13,-13,-13,-13,-13,0,-13,-13,-13,-13,-13,-13,-13,-13,-13,-13,-13,-13,-13,-13,-13,-13,-13,-13,-29,-29,-29,-29,-29,-13,-13,-13,-13,-13,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,-29,0,-29,0]} 1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Be7 5. Bg2 O-O 6. Nf3 b6 7. O-O Bb7 8. Nc3 Na6 9. Rc1 Re8 10. Qc2 {E16: Queen's Indian: 4 g3 Bb7 5 Bg2 Bb4+} d5 11. cxd5 Nb4 12. Qb1 {Black must now prevent dxe6.White is slightly better.} (12. Qa4 {looks sharper.} exd5 13. a3 Na6 14. b4 c5 15. bxc5 bxc5 16. e3) 12... Nbxd5 13. Rfd1 Nxc3 14. Bxc3 Be4 $36 {[%mdl 2048] Black has good play.} 15. Qa1 Qd5 16. Be1 Rac8 17. Nh4 Bxg2 18. Nxg2 Qe4 19. Nf4 c5 20. dxc5 Bxc5 (20... g5 $5 {[%cal Rg5f4]} 21. Nd3 Qxe2 $15) 21. Qb1 Qb7 22. Nd3 Bd6 23. Rxc8 Rxc8 24. Rc1 h5 25. Rxc8+ Qxc8 26. Qc1 Qb7 27. Qg5 Qd5 28. Qxd5 Nxd5 $11 {[%mdl 4096] Endgame KBN-KBN} 29. e4 Ne7 30. Bc3 Nc6 31. f4 f5 32. exf5 exf5 33. Kf2 Kf7 34. Ke3 g6 35. Be5 Be7 36. b3 Ke6 37. Bc3 Bd6 38. Ne1 Kd5 39. Nf3 Be7 40. Kd3 a6 41. a4 b5 42. axb5 (42. Bd2 {seems wilder.} bxa4 43. bxa4 Bf6 44. Bc3 Be7 45. Bd2) 42... axb5 43. Nd4 Nxd4 44. Bxd4 {KB-KB} h4 45. gxh4 Bxh4 46. Be3 Bf6 47. Bf2 Be7 48. Bd4 Ba3 49. Ba7 Bb2 50. Be3 Ba3 51. Ba7 Bd6 52. Be3 Bc7 53. Bd2 Kc5 54. Ke3 Bd8 55. Kd3 Bf6 56. Ba5 Bg7 57. Bc3 Bf8 58. Ba5 Bd6 59. Ke3 Kd5 60. Bc3 Bc5+ 61. Kd3 Bg1 62. h3 Kc5 63. Ba5 Bf2 64. Bc3 Bh4 65. Ba5 Bf6 66. Bc3 Bd8 67. Bd2 Bc7 68. Ke3 Bd6 69. Kd3 Kd5 70. Ke3 Ba3 71. Kd3 Bb2 72. Ke3 Bd4+ 73. Kd3 Bb2 74. Ke3 Bd4+ {Accuracy: White = 59%, Black = 70%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "9.7"]
[White "Leko, Peter"]
[Black "Cheparinov, Ivan"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2674"]
[BlackElo "2667"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,85,16,0,18,0,15,14,20,16,16,15,19,14,26,19,28,14,29,16,51,48,60,31,36,35,57,15,14,14,8,8,14,0,0,0,0,-17,6,8,10,10,12,12,12,13,14,20,17,17,20,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. d4 cxd4 5. Qxd4 a6 6. Bxd7+ Bxd7 7. O-O e5 8. Qd3 Rc8 {Black wants to play ...Bb5. B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7} 9. Nc3 h6 10. Nd2 Qc7 11. Rd1 Nf6 12. Nf1 Be7 13. Ne3 Be6 14. Bd2 O-O 15. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} Rfd8 16. Be1 g6 17. a5 Bc4 18. Nxc4 Qxc4 19. f3 d5 20. exd5 Bc5+ {The position is equal.} 21. Kh1 Bd4 22. h3 Rd7 ({Wrong is} 22... Nxd5 $2 23. Qxc4 Rxc4 24. Nxd5 $18) 23. Ra3 Qxd3 ({Much weaker is} 23... Nxd5 $6 24. Qxc4 Rxc4 25. Nxd5 $16) 24. Rxd3 Rc5 ({But not} 24... Nxd5 25. Nxd5 Rxd5 26. c3 $16) 25. b4 (25. Ra1 {looks sharper.} Nh5 26. Bd2 Rxa5 27. Rd1 Rc5 28. Bxh6 b5 29. Kh2) 25... Bxc3 (25... Rc4 {is interesting.} 26. b5 Kg7 27. Ra2 g5 28. bxa6 bxa6 29. Bd2 Ba7) 26. Raxc3 Rxc3 27. Bxc3 Rxd5 28. Rxd5 Nxd5 $11 {[%mdl 4096] Endgame KB-KN} 29. Bd2 h5 30. Kg1 f6 31. Kf2 Kf7 32. g4 hxg4 33. hxg4 Ke6 34. c4 Nc7 35. Ke3 Ne8 36. Kd3 Nd6 37. Be3 f5 38. gxf5+ gxf5 39. Bc5 Ne8 40. Be3 Nd6 41. Bc5 Ne8 42. Be3 Nd6 43. Bc5 {Accuracy: White = 67%, Black = 73%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "9.8"]
[White "Mamedov, Rauf"]
[Black "Andreikin, Dmitry"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2650"]
[BlackElo "2722"]
[Annotator "TA"]
[PlyCount "106"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,106,3,4,12,13,9,8,3,3,0,0,0,8,12,10,7,0,0,0,0,0,-17,-11,-25,-1,-21,23,-12,-13,-6,-18,-8,0,0,0,-44,-19,-34,0,0,0,0,0,0,0,0,11,6,48,0,0,0,0,-31,-33,-20,0,-17,0,0,13,13,15,18,47,43,145,0,0,0,0,0,8,-1,-1,-1,-1,-1,-1,-1,0,0,0,0,0,0,0,0,0,-2,0,0,0,0,0,-8,-8,-8,-8]} 1. e4 c6 2. d4 d5 3. e5 c5 4. dxc5 e6 5. a3 Bxc5 6. Nf3 {B12: Caro-Kann: Advance Variation} Ne7 7. Bd3 Ng6 8. O-O Qc7 9. b4 Be7 10. Bb2 a5 11. Nc3 O-O 12. Nb5 Qd8 13. bxa5 Nc6 {[%cal Bb8c6,Bc6a5,Ba5c4][%mdl 32]} 14. Qd2 Nxa5 15. a4 Bd7 16. Rfd1 Bc6 17. Qe3 Qb8 18. Nd6 Nc4 19. Bxc4 dxc4 20. a5 Qc7 21. Bc3 Rfd8 22. Bd4 {[#] And now Bb6 would win.} Bxd6 ({Inferior is} 22... Rxa5 23. Bb6 $16) 23. Bb6 Bc5 24. Qxc5 Rxd1+ 25. Rxd1 Qe7 26. Qxe7 Nxe7 27. Nd4 Bd5 28. Nb5 Bc6 29. Nd4 (29. Nd6 {looks sharper.} g5 30. f3 c3 31. Nxb7 Bxb7 32. Rd7) 29... Be8 30. f4 h5 31. f5 exf5 32. e6 f4 33. exf7+ Kxf7 34. Nf3 Nc6 35. Rd5 Ke6 36. Rc5 Bg6 37. Rxc4 Nxa5 {[#]} (37... Ne5 $14 38. Rc7 Nxf3+ 39. gxf3 Rd8) 38. Rxf4 ({Worse is} 38. Ra4 Ra6 $11) (38. Nd4+ $1 $16 Kf6 39. Ra4) 38... Nc6 $11 {The position is equal.} 39. c3 Ra2 40. h3 Bd3 41. Nd4+ Nxd4 42. Bxd4 {[%mdl 4096] Endgame KRB-KRB} g6 43. Rf2 Rxf2 44. Kxf2 {KB-KB} Be4 45. Bb6 Bc6 46. h4 Kf5 47. g3 g5 48. hxg5 Kxg5 49. Be3+ Kg4 50. Bd4 h4 51. gxh4 Kxh4 52. c4 b5 53. cxb5 Bxb5 {Accuracy: White = 70%, Black = 46%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "10.1"]
[White "Rapport, Richard"]
[Black "Korobov, Anton"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "2736"]
[BlackElo "2687"]
[Annotator "TA"]
[PlyCount "122"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,122,-20,-11,-12,-13,-25,-20,-14,-13,-29,17,2,0,-18,-16,-104,-99,-90,-99,-114,-112,-116,-117,-135,-133,-131,-131,-136,-89,-87,-87,-87,-87,-86,-76,-75,-75,-85,-77,-80,-87,-77,-82,-82,-78,-77,-78,-80,-70,-58,-56,-54,-43,-52,-52,-52,-45,-62,-54,-91,-61,-91,-91,-123,-123,-140,-128,-128,-128,-128,-128,-128,-128,-128,-128,-126,-123,-116,-116,-149,-140,-177,-177,-187,-191,-289,-284,-287,-281,-283,-273,-282,-259,-302,-313,-495,-486,-600,-583,-566,-525,-654,-512,-701,-688,-1268,-1240,-1119,-1081,-29979,-29981,-29980,-29976,-29982,-29983]} 1. e4 c5 2. Na3 {[%cal Bb1a3,Ba3c4,Bc4e5][%mdl 32]} (2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Nd5 Nxd5 8. exd5 Ne7 9. c4 Ng6 10. Qa4 Bd7 11. Qb4 Bf5 12. h4 h5 13. Bg5 Qb8 14. Qa4 Bd7 15. Qc2 Bxb5 16. cxb5 Be7 17. Bd3 Nf8 18. b6 Nd7 19. bxa7 Qxa7 {½-½ (71) Caruana,F (2819)-Carlsen,M (2845) Karlsruhe/Baden Baden 2019}) 2... Nc6 3. Bb5 Qc7 4. d3 Nf6 5. f4 a6 6. Bxc6 $1 {B31: Sicilian: 2...Nc6 3 Bb5 g6} Qxc6 7. Nc4 $146 ({Predecessor:} 7. Nf3 b5 8. c4 d6 9. b3 e6 {1-0 (40) Leon,J (2265)-Pichot,A (2300) Buenos Aires 2012}) 7... d5 8. Ne5 {The position is equal.} Qc7 9. Ngf3 h6 10. O-O e6 11. Qe1 Be7 12. f5 (12. Bd2 $11) 12... dxe4 $17 13. dxe4 O-O ({Much weaker is} 13... exf5 14. Bf4 $11) 14. Bf4 {Ng6 is the strong threat.} Bd6 15. Rd1 exf5 16. Rxd6 Qxd6 17. Ng6 Qd8 18. Nxf8 Qxf8 19. exf5 Bxf5 20. Bxh6 Re8 21. Qh4 Bxc2 {[#]} 22. Qxf6 $1 {[%mdl 512]} gxf6 23. Bxf8 Kxf8 {[%mdl 4096] Endgame KRB-KRN} 24. Kf2 c4 25. Re1 Rd8 26. Rc1 Bd3 27. Ne1 Bg6 28. Nf3 b5 29. b3 cxb3 30. axb3 a5 31. Ra1 Rd3 32. Rxa5 Rxb3 33. Nd4 Rb2+ 34. Ke3 b4 35. Rb5 Rxg2 36. Rxb4 Rxh2 37. Ne2 Rh3+ 38. Kf2 Kg7 39. Nf4 Ra3 40. Rb6 Ra5 41. Kf3 Re5 42. Rd6 Bc2 43. Kg3 Bb3 44. Rd2 Be6 45. Rf2 Rg5+ 46. Kf3 Bg4+ 47. Ke3 (47. Kg3 $142) 47... Re5+ $19 48. Kd4 Re8 49. Nd5 f5 50. Ra2 Bf3 {Hoping for ...Rd8.} 51. Nc3 Kf6 52. Ra6+ (52. Rf2 $142 Bc6 53. Rf1) 52... Re6 53. Ra7 f4 54. Kd3 Rd6+ 55. Kc4 Bg2 56. Ra2 Bb7 57. Ra7 Rd7 58. Ra1 f3 59. Nd1 {[#]} Rxd1 $1 {[%mdl 64] Promotion. Black mates.} 60. Rxd1 Ba6+ 61. Kd4 f2 {Accuracy: White = 42%, Black = 87%.} 0-1

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "10.2"]
[White "Cheparinov, Ivan"]
[Black "Le, Quang Liem"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2667"]
[BlackElo "2704"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,87,18,26,16,19,18,19,19,19,16,18,14,20,16,35,37,32,5,27,20,33,22,38,34,55,33,26,12,19,20,20,14,30,31,33,39,42,42,42,21,20,10,10,0,0,-7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,0,7,0,7,0]} 1. d4 $146 ({Predecessor:} 1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4 Nf6 5. O-O e6 6. c4 {1-0 (85) Howell,D (2689)-Harikrishna,P (2733) Porto Carras 2018}) 1... Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 c5 6. O-O Nc6 7. dxc5 Qxd1 8. Rxd1 Bxc5 9. Nbd2 c3 10. bxc3 O-O 11. Nb3 Be7 12. c4 Bd7 13. Bb2 {E04: Open Catalan: 5 Nf3} Rfd8 14. Nfd4 Rac8 15. Nb5 b6 16. Nd6 Bxd6 17. Rxd6 Be8 18. Rd3 Nb4 19. Rxd8 Rxd8 20. Bc3 Nc6 21. Rc1 h6 22. Kf1 Ng4 23. Ke1 Rc8 24. h3 Nf6 25. Nd2 Nb8 26. Bxf6 gxf6 27. Ne4 Kf8 28. Nxf6 Bb5 29. c5 Rxc5 30. Rxc5 bxc5 $14 {[%mdl 4096] Endgame KBN-KBN} 31. Bb7 Nd7 {The position is equal.} 32. Nxd7+ Bxd7 $11 {KB-KB} 33. f4 e5 34. h4 exf4 35. gxf4 Ke7 36. e4 f6 37. Kd2 Kd6 38. Kc3 Bb5 39. Bc8 Be2 40. a3 Bb5 41. Bb7 Be2 42. Bc8 Bb5 43. Bb7 Be2 44. Bc8 {Accuracy: White = 65%, Black = 68%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "10.3"]
[White "Yu, Yangyi"]
[Black "Dominguez Perez, Leinier"]
[Result "0-1"]
[ECO "D35"]
[WhiteElo "2739"]
[BlackElo "2750"]
[Annotator "RC"]
[PlyCount "92"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "900+10"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:03:37]} 2. c4 {[%emt 0:00:00]} e6 {[%emt 0:00:01]} 3. Nc3 {[%emt 0:00:00]} d5 {[%emt 0:00:01]} 4. cxd5 {[%emt 0:00:00]} Nxd5 {[%emt 0:00:01]} 5. e4 {[%emt 0:00:00]} Nxc3 {[%emt 0:00:01]} 6. bxc3 {[%emt 0:00:00]} c5 {[%emt 0:00:01]} 7. a3 {[%emt 0:00:02]} g6 {[%emt 0:00:09]} 8. Nf3 {[%emt 0:00:42]} Bg7 {[%emt 0:00:00]} 9. Be2 {[%emt 0:00:23]} O-O {[%emt 0:00:27]} 10. O-O {[%emt 0:00:05]} cxd4 {[%emt 0:00:06]} 11. cxd4 {[%emt 0:00:04]} Nc6 {[%emt 0:00:00]} 12. Bg5 {[%emt 0:01:11]} Qd6 {[%emt 0:04:37]} 13. e5 {[%emt 0:00:39]} Qd5 {[%emt 0:00:01]} 14. Rc1 {[%emt 0:01:04]} h6 {[%emt 0:00:02]} 15. Be3 {[%emt 0:00:56]} Rd8 {[%emt 0:00:01]} 16. Bc4 {[%emt 0:02:17]} Qa5 {[%emt 0:00:34]} 17. Qb3 {[%emt 0:00:30]} Ne7 {[%emt 0:01:05]} 18. Bd2 {[%emt 0:02:10]} Qb6 {[%emt 0:00:19]} 19. Qa2 {[%emt 0:00:10]} Bd7 {[%emt 0:00:28]} 20. Bb4 {[%emt 0:00:11]} Nc6 {[%emt 0:01:24]} 21. Bc5 {[%emt 0:00:47]} Qa5 {[%emt 0:00:11]} 22. Bd6 {[%emt 0:00:36]} Rdc8 {[%emt 0:02:16]} 23. d5 {[%emt 0:00:12]} exd5 {[%emt 0:00:01]} 24. Bxd5 {[%emt 0:00:02]} Nd8 {[%emt 0:00:01]} 25. Nd4 {[%emt 0:00:14]} Rxc1 {[%emt 0:00:14]} 26. Rxc1 {[%emt 0:00:04]} Rc8 {[%emt 0:00:02]} 27. Rd1 {[%emt 0:00:35]} Ba4 {[%emt 0:00:34]} 28. Bb3 {[%emt 0:03:01]} Bxb3 {[%emt 0:00:25]} 29. Nxb3 {[%emt 0:00:48]} Qa4 {[%emt 0:00:27]} 30. h3 {[%emt 0:00:53]} Ne6 {[%emt 0:00:02]} 31. Qb1 {[%emt 0:00:01]} b6 {[%emt 0:01:21]} 32. Qb2 {[%emt 0:01:25]} Qe4 {[%emt 0:00:47]} 33. Nd2 {[%emt 0:00:38]} Qe2 {[%emt 0:00:28]} 34. Rc1 {[%emt 0:00:14]} Rxc1+ 35. Qxc1 {[%emt 0:00:01]} Bxe5 {[%emt 0:00:43]} 36. Bxe5 {[%emt 0:00:07]} Qxe5 {[%emt 0:00:01]} 37. Nf3 {[%emt 0:00:02]} Qf4 {[%emt 0:00:08]} 38. Qc6 {[%emt 0:00:01]} Kg7 {[%emt 0:00:08]} 39. g3 {[%emt 0:00:09]} Qc7 {[%emt 0:00:15]} 40. Qa4 {[%emt 0:00:25]} a5 {[%emt 0:00:13]} 41. h4 {[%emt 0:00:04]} Qc5 {[%emt 0:00:07]} 42. Qb3 {[%emt 0:00:09]} h5 {[%emt 0:00:28]} 43. Qb2+ {[%emt 0:00:05]} Kg8 {[%emt 0:00:01]} 44. a4 {[%emt 0:00:17]} Qc6 {[%emt 0:00:14]} 45. Ne5 {[%emt 0:00:09]} Qxa4 {[%emt 0:00:12]} 46. Qxb6 {[%emt 0:00:01]} Qa1+ {[%emt 0:00:02]} 0-1

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "10.4"]
[White "Vidit, Santosh Gujrathi"]
[Black "Mamedov, Rauf"]
[Result "0-1"]
[ECO "D37"]
[WhiteElo "2707"]
[BlackElo "2650"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,94,31,19,45,51,47,32,43,37,47,8,11,-8,-9,-9,-11,-5,-9,-12,-10,-10,-9,-10,-2,-147,-54,-150,-79,-94,-79,-136,-125,-139,-139,-139,-139,-132,-123,-115,-113,-132,-73,-102,-90,-127,-100,-106,-91,-462,-436,-436,-436,-413,-395,-416,-398,-467,-467,-467,-370,-1007,-794,-961,-1069,-1027,-925,-1749,-1743,-1791,-1687,-5206,-5197,-5197,-5177,-1409,-1375,-12816,-4550,-29964,-11488,-6179,-6131,-5110,-5110]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Nbd7 5. Bg5 h6 6. Bh4 c6 7. e3 g5 {D51: Queen's Gambit Declined: 4 Bg5 Nbd7 sidelines} (7... Be7 8. Qc2 O-O 9. O-O-O dxc4 10. g4 b5 11. Rg1 Nd5 12. Bxe7 Qxe7 13. g5 h5 14. g6 f5 15. Ne5 Nxc3 16. Qxc3 Nf6 17. e4 {1-0 (29) Morozevich,A (2675)-Ponomariov,R (2699) Biel 2017}) 8. Bg3 Nh5 9. Be5 Ng7 {White is slightly better.} 10. h3 Nxe5 11. dxe5 Nf5 $146 ({Predecessor:} 11... f5 12. g4 Bb4 13. Qb3 Qa5 14. Kd2 {0-1 (38) Al Yaghshi,M (2056)-Vishnu,P (2534) Sharjah 2017}) 12. e4 d4 13. exf5 dxc3 14. Qxd8+ Kxd8 15. O-O-O+ Kc7 {aiming for ...cxb2+.} 16. f6 Bc5 17. bxc3 Bxf2 18. g4 (18. Be2 $11) 18... Bd7 (18... c5 $17 19. Bd3 Bd7) 19. Bd3 ({Better is} 19. Rd3 $15) 19... Rad8 (19... c5 $142 20. Be4 Ba4) 20. Be4 $17 c5 21. Rd3 (21. Kb2 $142) 21... Ba4 22. Kd2 Bg3 23. Rxd8 Rxd8+ 24. Ke2 b5 25. Rb1 a6 26. Ke3 Rd1 ({Black should play} 26... Kb6 27. cxb5 axb5) 27. cxb5 axb5 28. Bd3 Rxb1 29. Bxb1 {[%mdl 4096] Endgame KBB-KBN} Bd1 30. Bd3 $2 {[%mdl 8192]} (30. Bg6 $17 {is tougher.}) 30... Bf4+ $1 $19 31. Kf2 Bxf3 32. Kxf3 {KB-KB} c4 33. Bg6 Bxe5 34. Bxf7 {[#]} Kd7 $1 35. Bg6 Bxf6 36. Be4 $2 (36. Bf7 Bxc3 37. Bg6) 36... Bxc3 37. Bb7 Kd6 38. Ke4 Kc5 39. Bc8 {[#]} e5 $1 40. Bd7 Bd4 41. Be8 c3 42. Kd3 {[#]} e4+ $1 43. Kc2 (43. Kxe4 c2) 43... e3 {( -> ...e2)} 44. Kd3 Kb4 45. Bc6 Ka3 46. Bxb5 e2 {[%mdl 64] Deflection, Promotion} 47. Kxe2 c2 {Accuracy: White = 24%, Black = 64%.} 0-1

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "10.5"]
[White "Fedoseev, Vladimir"]
[Black "Leko, Peter"]
[Result "1/2-1/2"]
[ECO "E06"]
[WhiteElo "2683"]
[BlackElo "2674"]
[Annotator "TA"]
[PlyCount "121"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,121,13,13,12,14,14,0,10,6,7,-4,14,6,6,0,0,0,0,7,9,7,9,9,9,6,6,12,22,22,23,18,24,22,22,21,22,22,22,12,22,20,31,6,26,21,21,0,0,0,14,-17,0,0,0,0,0,-19,0,0,0,0,0,-6,-13,-36,-36,-46,-43,-45,-41,-47,14,14,14,14,24,25,24,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0]} 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. Bf4 Bd6 {E05: Open Catalan: 5 Nf3 Be7} 11. Qc1 Nbd7 12. Nc3 Qe7 13. a5 Rfe8 14. Rd1 {[#]} Rad8 $146 ({Predecessor:} 14... Rab8 15. Bd2 e5 16. dxe5 Nxe5 17. Nd4 Bxg2 18. Kxg2 {½-½ (49) Bu,X (2681)-Onischuk,A (2665) Tsaghkadzor 2015}) 15. Bxd6 cxd6 16. Qc2 Rc8 17. Qd3 Nd5 18. Nxd5 Bxd5 19. Rdc1 Nf6 20. Nd2 Bxg2 21. Kxg2 d5 22. Rc3 Red8 23. Rac1 Qd7 24. b4 Rxc3 25. Qxc3 Ne8 26. Qc5 Nd6 27. Qb6 Qe7 28. Rc5 g6 29. Nf3 f6 30. Nd2 (30. Rc7 $5 {[%cal Rc7e7]} Rd7 31. Rxd7 Qxd7 32. Ne1 $11) 30... Kf7 31. Rc7 Rd7 32. Rc2 Rd8 33. e3 Rd7 34. f3 Rd8 35. e4 dxe4 36. fxe4 Rd7 37. Qc5 Nb5 38. Nb3 $1 Qxc5 39. Rxc5 $11 {[%mdl 4096] Endgame KRN-KRN} Ke7 40. e5 fxe5 ({Reject} 40... Nxd4 $6 41. Nxd4 Rxd4 42. Rc7+ Kd8 43. Rxh7 $16) 41. Rxe5 Nxd4 42. Nc5 Rd5 43. Re4 e5 44. Nxb7 Nc6 (44... Ne6 $15) 45. Rc4 Rb5 46. Rxc6 Rxb7 47. Rxa6 {[#] Strongly threatening Ra8.} Rxb4 {KR-KR} 48. Ra7+ Kf6 {The position is equal.} 49. Rxh7 Ra4 50. Ra7 Ra2+ 51. Kf3 {And now h4 would win.} Rxh2 52. Kg4 Ra2 53. Ra6+ Kf7 54. Kg5 e4 55. Ra7+ Ke6 56. Kf4 Ra4 57. a6 Kf6 58. Ra8 g5+ 59. Kg4 e3+ 60. Kf3 {[#] Hoping for a7.} Ra3 61. g4 {Accuracy: White = 62%, Black = 71%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "10.6"]
[White "Bu, Xiangzhi"]
[Black "Gelfand, Boris"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2729"]
[BlackElo "2676"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,73,0,0,0,0,0,0,0,-23,-21,-27,-24,-31,-31,-39,-15,-35,0,0,0,-21,0,-24,-29,-17,-16,-46,-14,-56,-3,-18,-17,-112,-91,-91,-85,-206,-57,-54,-64,-68,-66,-62,300,300,315,315,679,263,601,600,592,564,29988,29989,29989,29990,29986,29985]} 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. O-O e5 5. d3 Ne7 6. e4 O-O 7. exd5 Nxd5 8. Re1 Nc6 9. Nc3 Nxc3 {A07: Réti Opening: New York and Capablanca Systems} 10. bxc3 Rb8 11. Rb1 b6 {The position is equal.} 12. Bg5 $146 ({Predecessor:} 12. Nd2 Bb7 13. h4 Ne7 14. Bxb7 Rxb7 15. c4 Qd7 16. Qf3 Rbb8 17. Bb2 {0-1 (62) Caruana,F (2795)-So,W (2773) Saint Louis 2016}) 12... f6 13. Be3 Be6 14. c4 Qd7 15. Qc1 Rbd8 16. Qa3 {[#]} e4 $1 {[%mdl 512]} 17. dxe4 Bxc4 18. h4 Rfe8 19. Kh2 Bf7 20. Rbd1 Qe6 $36 {[%mdl 2048] Black is pushing.} 21. Rd5 Qe7 22. Qa4 Bxd5 (22... Qxe4 $15 23. Qxe4 Rxe4 24. Rxd8+ Nxd8) 23. exd5 $11 Ne5 24. Nd4 (24. Nxe5 $11 {was the only way to keep the balance.} fxe5 25. c4) 24... Qd7 25. Qb3 Ng4+ 26. Kg1 (26. Kh1 $17) 26... Nxe3 ({Black should play} 26... Bh6 $1 $19 {aiming for ...Bxe3.} 27. f4 Bf8) 27. Rxe3 $15 Rxe3 28. Qxe3 Re8 29. Ne6 c6 $2 {[%mdl 8192]} (29... Bf8 $15 {keeps the upper hand.}) 30. dxc6 $18 Qd1+ ({Don't go for} 30... Qxe6 $2 31. Qxe6+ Rxe6 32. Bd5 $18) 31. Kh2 Qxc2 $2 {[#]} (31... Bf8 32. Qb3 Kh8) 32. c7 $2 (32. Qd4 $1 {[%mdl 512] Intending Qd7! and mate.} Rxe6 {[#]} 33. Qd7 $1 {[%mdl 576] Double Attack}) 32... Bf8 $2 (32... Qxc7 33. Nxc7 Rxe3) 33. Qd4 Rxe6 34. Qd7 Re8 {With the idea ...Qe2.} 35. Bd5+ {White mates.} Kh8 36. Qxe8 {[%cal Re8f8]} Qxf2+ 37. Bg2 {Accuracy: White = 45%, Black = 31%.} 1-0

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "10.7"]
[White "Ponomariov, Ruslan"]
[Black "Wang, Hao"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2675"]
[BlackElo "2735"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,118,17,11,35,41,28,17,22,0,0,0,0,0,0,0,0,0,0,-10,-4,-10,0,-12,0,0,0,0,0,0,6,0,0,-21,-12,-21,39,-10,-12,-13,-10,-12,-19,-18,-21,-38,-9,-8,-9,-15,-17,-23,-14,-14,-21,-25,0,-129,-122,-78,-30,-32,-43,-57,0,0,0,-301,-301,-301,-299,-236,-327,-214,-21,-341,-285,-388,-406,-326,-253,-344,-332,-293,-306,-412,0,-812,-702,-1072,-1057,-993,-989,-1053,-1053,-833,-776,-735,-718,-1195,-1119,-1958,-1669,-1331,-1320,-952,-893]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e6 7. g4 h6 8. Bg2 Be7 {B81: Sicilian Scheveningen: Keres Attack} 9. Be3 Nc6 10. f4 Nd7 {The position is equal.} (10... Bd7 11. Qe2 Nxd4 12. Bxd4 Bc6 13. O-O-O Qc7 14. Kb1 e5 15. Be3 {1-0 (45) Grischuk,A (2766)-Duda,J (2737) chess.com INT 2018}) 11. O-O Nxd4 12. Qxd4 O-O 13. Qd2 Rb8 14. Ne2 b5 15. Rad1 Bb7 16. e5 $146 ({Predecessor:} 16. Ng3 Qc7 17. f5 Rbc8 18. c3 Ne5 19. Qc1 Nc4 20. Bxh6 {½-½ (20) Filipchenko,V (2414)-Evtushenko,S (2546) ICCF email 2016}) 16... Bxg2 17. Kxg2 d5 18. Nd4 {aiming for Nc6.} Rc8 19. Qe2 Bc5 20. c3 Qe7 21. Bf2 Rfe8 22. Rfe1 b4 23. Qxa6 Ra8 24. Qe2 Rec8 (24... bxc3 $11 25. bxc3 Bxd4 26. cxd4 (26. Bxd4 Nc5 $11) 26... Nb6) 25. Ra1 bxc3 26. bxc3 Bb6 27. Rec1 $1 Rc4 28. Rab1 Qa3 29. Rb2 Bxd4 30. Bxd4 Nc5 31. Rcb1 Ne4 32. Rb8+ Rxb8 33. Rxb8+ Kh7 {Black wants to play ...Rxd4!} 34. Qb2 Qe7 35. g5 (35. Rb4 $11 {keeps the balance.} Qh4 36. Bf2 Nxf2 37. Qxf2 Qxf2+ 38. Kxf2 Rxc3 39. Rb7) 35... hxg5 $17 36. Rb7 Rc7 37. Rxc7 Qxc7 38. fxg5 Qc4 (38... Nxg5 $15 39. Qc2+ Kg8) 39. Qc2 $11 Kg6 40. Be3 $2 {[%mdl 8192]} (40. h4 $11 {and White stays safe.}) 40... Qxc3 $19 41. Qxc3 Nxc3 {[%mdl 4096] Endgame KB-KN} 42. a3 Kf5 $1 43. Bd4 Ne2 $2 (43... Na4 $19 44. h4 Kg4) 44. Bb2 $2 {[%mdl 8192]} (44. Bc5 $11) 44... Nf4+ ({But not} 44... Kxg5 $2 45. Kf3 $18) 45. Kg3 Ke4 {Played: Nf4-d3} 0-1

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "10.8"]
[White "Andreikin, Dmitry"]
[Black "Jones, Gawain C B"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2722"]
[BlackElo "2702"]
[Annotator "TA"]
[PlyCount "43"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,43,-14,-13,47,47,48,-4,47,25,91,87,118,104,110,114,134,20,18,20,256,271,396,373,390,381,374,349,29994,29995]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Be2 Nc6 9. d5 Ne5 {D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3} (9... Bxc3+ $11 10. Bd2 Bxa1 11. Qxa1 Nd4 12. Nxd4 cxd4) (9... Bxc3+ 10. Bd2 Bxa1 11. Qxa1 Nd4 12. Nxd4 cxd4 13. Qxd4 f6 14. O-O Qb6 15. Qa1 Bd7 16. Bc3 Rc8 17. Bd4 Qa5 18. Qb2 b6 19. f4 O-O 20. Bd3 f5 21. d6 exd6 {1-0 (39) Dziuba,M (2556)-Ipatov,A (2494) Moscow 2009}) 10. Nxe5 $14 Bxe5 11. O-O ({White should try} 11. Qb3 $14) 11... O-O (11... Bxc3 $11 12. Rb1 O-O) 12. Bh6 Re8 (12... Bxc3 $11 {keeps the balance.} 13. Rc1 Bd4) 13. Qd2 $146 ({Predecessor:} 13. Rc1 Bg7 14. Bxg7 Kxg7 15. f4 a6 16. c4 Qa5 17. Qc2 Bd7 {1-0 (33) Yagupov,I (2439)-Shestakov,S (2340) Donskoj 2003}) 13... e6 14. f4 Bc7 15. Bg5 Qd7 16. f5 (16. a4 $16 {aiming for Bb5.} a6 17. Bc4) 16... exf5 $11 17. exf5 Qd6 $2 (17... Be5 $11 {and Black is okay.}) 18. Bf4 $18 Qe7 (18... Re5 $142 19. fxg6 hxg6) 19. d6 Bxd6 ({Stronger than} 19... Qxe2 20. Rae1 $18) 20. Bxd6 Qxe2 {[#]} 21. Rae1 $1 {[%cal Re1e2]} Qb5 $2 (21... Qxd2 $18 22. Rxe8+ Kg7 23. f6+ Kh6 24. Bf4+ {[#]} Qxf4 $1 {[%mdl 512]} 25. Rxf4 g5) 22. f6 {Accuracy: White = 63%, Black =  9%.} ({Not} 22. fxg6 hxg6 23. Rxe8+ Qxe8 $18) 1-0

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "11.1"]
[White "Korobov, Anton"]
[Black "Bu, Xiangzhi"]
[Result "1/2-1/2"]
[ECO "D10"]
[WhiteElo "2687"]
[BlackElo "2729"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,93,9,24,3,13,19,14,0,0,0,0,0,23,0,0,16,4,2,6,-12,0,-17,-12,-7,0,0,10,6,3,6,2,0,6,6,2,4,8,8,8,0,8,8,13,0,0,0,0,3,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,8,8,-8,-8,-8,8,8,8,8]} 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Bf4 Nc6 5. e3 Nf6 6. Bd3 Bg4 7. Ne2 e6 8. Nbc3 a6 9. Qb3 {D10: Slav Defence: 3 cxd5 (without early Nf3) and 3 Nc3} Na5 10. Qa4+ Nc6 11. Ng3 Bh5 $146 ({Predecessor:} 11... Be7 12. Be5 b5 13. Qb3 Nxe5 14. dxe5 Nd7 15. h3 Nxe5 16. Bb1 Bh4 17. hxg4 Bxg3 18. fxg3 Nxg4 {½-½ (77) Azmaiparashvili,Z (2674)-Gelfand,B (2701) Moscow 2001}) 12. Nxh5 Nxh5 13. Be5 Bd6 (13... Be7 {looks sharper.} 14. Qb3 f6 15. Bg3 f5 16. Be5 O-O) 14. O-O O-O {The position is equal.} 15. Bxd6 Qxd6 16. Rfc1 Nf6 17. Qd1 e5 18. dxe5 Qxe5 19. Ne2 g6 20. Qb3 Rab8 (20... Ng4 {is interesting.} 21. g3 Rab8 22. Nf4 Rfd8 23. Re1 d4) 21. Qc3 Qxc3 22. Rxc3 Rfd8 23. Rb3 d4 24. Nxd4 Nxd4 25. exd4 b5 26. Bf1 Rxd4 {[#]} 27. a4 $1 {[%mdl 512]} Ne4 (27... bxa4 28. Rxb8+) 28. axb5 axb5 29. f3 Nc5 30. Rxb5 Rxb5 31. Bxb5 $11 {[%mdl 4096] Endgame KRB-KRN} Rb4 32. Be8 Rxb2 33. Ra7 f5 34. Bf7+ Kh8 35. h4 Nd3 36. Ra2 Rb1+ 37. Kh2 Rb4 38. g3 Rb2+ 39. Rxb2 Nxb2 {KB-KN} 40. g4 Kg7 41. Bb3 fxg4 42. fxg4 Nd3 43. g5 h6 44. gxh6+ Kxh6 45. Bc2 g5 46. hxg5+ Kxg5 47. Bxd3 {Accuracy: White = 68%, Black = 75%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "11.2"]
[White "Le, Quang Liem"]
[Black "Andreikin, Dmitry"]
[Result "1/2-1/2"]
[ECO "E17"]
[WhiteElo "2704"]
[BlackElo "2722"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,80,15,16,26,27,33,27,29,7,7,1,1,5,5,0,0,0,0,0,0,0,7,8,9,4,6,16,12,9,9,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Re1 c6 {E17: Queen's Indian: 4 g3 Bb7 5 Bg2 Be7} (7... Qc8 8. Nc3 Ne4 9. Bd2 f5 10. Rc1 d6 11. d5 e5 12. Bh3 Nxd2 13. Nxd2 g5 14. f3 g4 15. fxg4 fxg4 {½-½ (26) Ivanchuk,V (2717)-Andreikin,D (2719) Sitges 2018}) 8. e4 d5 9. e5 Ne4 {White has an edge.} 10. cxd5 cxd5 {The position is equal.} 11. Nbd2 Nxd2 12. Bxd2 Ba6 13. Re3 Qd7 14. Rc1 Nc6 15. Bf1 $146 ({Predecessor:} 15. Rec3) 15... Bxf1 16. Qxf1 Rac8 17. Rec3 {With the idea Qb5.} Nb8 18. Qd3 Rc6 19. Rxc6 Nxc6 20. Kg2 Rc8 21. h4 Nb4 22. Rxc8+ Qxc8 23. Bxb4 Bxb4 24. Ng5 g6 25. Qf3 (25. Qb5 {seems wilder.} Be7 26. Nf3 Kg7 27. a4 h6 28. b3) 25... Qe8 26. Qf4 Be7 27. b3 Qf8 28. Qc1 Bxg5 29. Qxg5 $11 {[%mdl 4096] Endgame KQ-KQ} h6 30. Qf6 Qa3 31. h5 gxh5 32. Qxh6 Qxa2 33. Qg5+ Kf8 34. Qd8+ Kg7 35. Qf6+ Kg8 36. Qd8+ Kg7 $1 37. Qf6+ Kg8 38. Qd8+ Kg7 $1 39. Qf6+ Kg8 40. Qd8+ Kg7 $1 {Accuracy: White = 76%, Black = 89%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "11.3"]
[White "Dominguez Perez, Leinier"]
[Black "Rapport, Richard"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "2750"]
[BlackElo "2736"]
[Annotator "TA"]
[PlyCount "136"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,136,40,45,2,32,29,36,20,18,10,17,24,22,22,16,24,56,55,54,62,64,12,43,25,38,38,49,7,7,7,22,15,10,2,15,10,10,0,0,0,0,0,0,0,0,0,6,0,155,6,6,6,15,6,8,0,7,0,0,0,0,0,0,0,0,0,0,0,0,0,6,5,20,0,0,0,0,-7,-8,-12,-27,-50,-8,-8,-6,-8,0,-8,0,0,0,-47,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O O-O 7. a4 c6 8. Re1 ({Predecessor:} 8. h3 h6 {½-½ (10) Zwahr,P (2318)-Schmidt Schaeffer,S (2383) Germany 2017}) 8... h6 9. h3 Re8 10. dxe5 $146 {C41: Philidor Defence} (10. Be3 Qc7 11. Ba2 Nf8 12. Qd3 Ng6 13. a5 Nh5 14. Ne2 Bf8 15. d5 c5 16. Qd2 Qd8 17. Bc4 Bd7 18. Kh2 Nh4 19. Nxh4 Qxh4 {1-0 (73) Rodshtein,M (2673)-Moussard,J (2601) Skopje 2019}) 10... Nxe5 (10... dxe5 {seems wilder.} 11. Qd3 a5 12. Rd1 Bc5 13. Be3 Qb6) 11. Nxe5 dxe5 12. Qf3 {White is slightly better.} Bb4 13. Rd1 Qe7 14. Ne2 Be6 15. Bxe6 Qxe6 16. Ng3 Bc5 17. Be3 Bxe3 18. Qxe3 Qc4 19. Rd2 (19. Rd6 $14 Re6 20. b3) 19... Red8 20. b3 Qb4 21. Rad1 Rxd2 22. Qxd2 (22. Rxd2 {is interesting.} b5 23. a5 Kh7 24. Nf5 Qxe4 25. Qxe4 Nxe4 26. Re2) 22... Qxd2 23. Rxd2 $14 {[%mdl 4096] Endgame KRN-KRN} Kf8 24. f3 g6 25. Nf1 Ke7 26. Ne3 h5 27. h4 Nd7 28. Nc4 f6 29. Na5 Rb8 30. Kf2 Nc5 31. Ke3 Ne6 32. g3 Nd4 $2 {[#]} ({Black should try} 32... Nc5 $11) 33. c3 ({White has to play} 33. f4 $1 $16) 33... Ne6 $1 $11 34. b4 Nd8 35. Nc4 Nf7 36. Rd1 b6 37. Rd2 Rg8 38. Rd1 g5 39. hxg5 fxg5 40. Rh1 Rh8 $1 41. Ke2 Ke6 42. Ne3 Nd6 43. Kd3 Ne8 44. Nf5 Rh7 45. Ke2 Nf6 46. Rd1 {[#] Rd6+ is the strong threat.} Rd7 47. Rxd7 Kxd7 {KN-KN} 48. Kd3 Ne8 49. Ke2 Ke6 50. Kd3 Kf6 51. Ke2 Ke6 52. Kf2 Nf6 53. Ke2 Ne8 54. Kf2 Nf6 (54... Nd6 $5 {[%cal Rd6f5]} 55. Ne3 a5 $11) 55. Ke2 {The position is equal.} Kd7 56. Kf2 a5 57. bxa5 bxa5 58. Ne3 {Threatens to win with Nc4.} Ke6 59. Nc4 Nd7 $1 60. Nxa5 Nb6 61. Nxc6 {And now a5 would win.} Nxa4 62. c4 Nb2 63. Na5 Nd3+ 64. Kg2 Ne1+ 65. Kf2 Nd3+ 66. Kg2 Ne1+ 67. Kf2 Nd3+ 68. Kg2 Ne1+ {Accuracy: White = 53%, Black = 75%.} 1/2-1/2

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "11.4"]
[White "Cheparinov, Ivan"]
[Black "Fedoseev, Vladimir"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "2667"]
[BlackElo "2683"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,68,24,21,18,29,18,36,10,18,9,35,42,40,27,40,40,52,46,42,18,57,43,30,43,36,30,41,29,20,37,47,50,23,37,20,0,0,0,0,0,0,0,0,0,0,-30,14,-79,-81,-156,-34,-96,-91,-79,0,-718,-702]} 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 b6 (9... Nf6 10. Bd3 c5 11. Rhe1 Be6 12. Bg5 d5 13. Qf4 Re8 14. Re5 Qc7 15. Qh4 h6 16. Bxh6 {½-½ (100) Navara,D (2739)-Gelfand,B (2655) Prague 2019}) 10. Nd4 {White is slightly better.} Bb7 11. Kb1 Nc5 12. f3 Qd7 $146 ({Predecessor:} 12... Bf6 13. h4 Qd7 14. Bb5 c6 15. Bf1 h5 16. Rg1 Rfe8 17. g4 hxg4 18. Rxg4 {1-0 (31) Windhausen,G (2478)-Marquardt,G (2270) GER email 2007}) 13. Bb5 c6 14. Be2 Rad8 15. g4 Ne6 16. Nf5 c5 17. h4 Rfe8 18. Bg5 f6 $1 {[%cal Rf6g5]} 19. Be3 d5 20. g5 Nf8 21. Ng3 fxg5 22. Bxg5 Bxg5 23. hxg5 Qc7 24. f4 d4 $1 $36 {[%cal Rd4c3][%mdl 2048] aiming for ...dxc3. Black is pushing.} 25. Rhf1 dxc3 26. Qxc3 Rxd1+ $1 27. Bxd1 Ba6 28. Rf2 Ne6 29. Nh5 Nd4 30. a3 (30. f5 $11 {keeps the balance.} Rf8 31. Qe1 Nxf5 32. Nf6+ gxf6 33. Rxf5) 30... Qe7 $17 31. Kc1 {[#]} ({White should play} 31. Ng3) 31... Kf7 (31... Be2 $1 $17 {And now ...Bxd1 would win.} 32. Ng3 Bxd1 33. Kxd1 Qe6) 32. Rh2 (32. Ng3 $15) 32... Qe4 33. Qd2 Rd8 (33... Qe1 $17 34. Qxe1 Rxe1) 34. Qf2 $2 {[%mdl 8192] [#]} (34. Kb1 $11) 34... Be2 $1 {[%mdl 512] Accuracy: White = 50%, Black = 54%.} 0-1

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "11.5"]
[White "Mamedov, Rauf"]
[Black "Yu, Yangyi"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "2650"]
[BlackElo "2739"]
[Annotator "TA"]
[PlyCount "152"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,152,36,43,32,41,30,47,22,27,0,0,0,0,0,0,0,0,0,0,0,3,-25,0,0,0,0,0,0,0,0,0,0,0,-3,0,-20,-12,-17,-19,-41,-38,-30,-6,-16,-13,-9,0,-54,-51,-48,-43,-49,-29,-54,-54,-73,-38,-66,-82,-56,-56,-110,-100,-108,-74,-95,-82,-82,-84,-82,-33,-24,-18,-35,-31,-38,-43,-103,-41,-38,-26,-30,-33,-27,-31,-33,-14,-31,0,0,0,-14,0,-86,-75,-141,-137,-191,-190,-179,-176,-185,-156,-279,-159,-361,-342,-348,-358,-697,-364,-327,0,-294,-288,-452,-460,-366,-422,-422,-422,-408,-414,-455,-470,-401,-326,-398,-395,-636,-618,-650,-630,-1045,-950,-2020,-1979,-1899,-1648,-5505,-5509]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Re1 d6 7. a4 Na5 8. Ba2 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack} c5 9. Bd2 (9. c3 Nc6 10. Nbd2 h6 11. Nf1 Re8 12. h3 Bf8 13. Ne3 Be6 14. Bxe6 Rxe6 15. Nd5 Re8 16. Nxf6+ Qxf6 {½-½ (30) Jakovenko,D (2719)-Yu,Y (2751) Shenzhen 2019}) 9... Nc6 10. h3 {White is slightly better.} Be6 11. Na3 Bxa2 12. Rxa2 d5 13. exd5 $146 ({Predecessor:} 13. Ra1 Re8 14. a5 h6 15. a6 b6 16. exd5 Qxd5 {0-1 (35) Prusikin,M (2555)-Sanikidze,T (2555) Nuremberg 2013}) 13... Qxd5 14. Ra1 Rfe8 15. Nb5 Bd8 16. Be3 Ba5 17. Bd2 {And now Bxa5 would win.} Bxd2 18. Nxd2 {Strongly threatening Nc7.} Qd7 19. Ne4 Nxe4 20. dxe4 Rad8 21. c3 a6 22. Na3 Na5 23. Qc2 Qd2 24. Re2 Qxc2 25. Nxc2 Nc4 26. b3 Nd2 27. b4 cxb4 28. Nxb4 Nb3 29. Rb1 Rd2 30. Ree1 (30. Kf1 $11 Rxe2 31. Kxe2) 30... Nc5 $15 31. a5 f6 32. f3 Kf7 33. Kf1 Red8 34. Nd5 f5 35. Ne3 fxe4 36. Nc4 Ra2 37. Nxe5+ {[#]} (37. fxe4 $15 Kg8 38. Re3) 37... Kf8 $1 $17 38. Ra1 Rxa1 (38... Rc2 {looks sharper.} 39. Re2 Rxc3 40. fxe4 Re8 41. Nf3 Nb3) 39. Rxa1 exf3 40. Nxf3 {[%mdl 4096] Endgame KRN-KRN} Rd3 41. Ra3 Re3 42. Kf2 Re4 43. Nd4 Ke7 44. Ra1 Re5 45. Rb1 (45. Kf3 $15) 45... Kd7 (45... Ne4+ $17 46. Kg1 Nd6) 46. Kf3 $15 Kc7 47. Rb4 Nd3 48. Ra4 g6 49. h4 h6 50. Rc4+ Kd7 51. Nb3 Rb5 {Hoping for ...Ne5+.} 52. Rd4+ Ke6 {...Ne5+ is the strong threat.} 53. Nd2 (53. Rxd3 $11 {keeps the balance.} Rxb3 54. Re3+ Kd6 55. Kf4) 53... Ne5+ $17 54. Ke4 (54. Kf4 $142) 54... Rxa5 55. Nb3 (55. Rb4 $17 Nd7 56. g3) 55... Rb5 $19 56. Nd2 Nc6 57. Rc4 Re5+ 58. Kf4 (58. Kd3 $17) 58... Rf5+ (58... Re2 $19 59. Re4+ Rxe4+ 60. Kxe4 b5) 59. Ke4 $2 (59. Ke3 $17 {keeps fighting.}) 59... Rf2 $1 {[%csl LRd2,LRg2]} 60. Nb3 {intending Nc5+.} Kd6 ({Not} 60... Rxg2 61. Nc5+ Kf6 62. Ke3 $17) 61. g3 $2 (61. Ke3 Rxg2 62. Rf4) 61... Re2+ 62. Kf4 Rf2+ $2 (62... Ra2 $19 {aiming for ...Ra3.} 63. Ke3 Ra3) 63. Ke3 $2 {[%mdl 8192] [#]} (63. Ke4 $1 $11) 63... Rf3+ $1 {[%mdl 576] Decoy} 64. Kxf3 (64. Kd2 $142) 64... Ne5+ {[%mdl 64] Double Attack} 65. Ke4 Nxc4 {KN-KN} 66. Kd4 Ne5 67. c4 Nc6+ 68. Kc3 b6 69. Nc1 Ne5 70. Nb3 Nd7 71. Nc1 $2 (71. Kd4 Nc5 72. Nc1) 71... Ke5 {Black is clearly winning.} 72. Nd3+ Ke4 73. Nf4 g5 74. hxg5 hxg5 75. Ne6 g4 76. Nd4 Nc5 {Accuracy: White = 36%, Black = 60%.} 0-1

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "11.6"]
[White "Jones, Gawain C B"]
[Black "Vidit, Santosh Gujrathi"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "2702"]
[BlackElo "2707"]
[Annotator "TA"]
[PlyCount "140"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,140,14,5,8,10,18,8,10,12,10,7,18,8,10,0,0,0,-2,-8,0,0,0,-12,0,-6,3,-2,13,8,15,0,5,4,10,3,0,-43,-46,-47,-41,-55,-44,-40,-37,-66,-37,-47,-40,-87,-79,-83,-81,-68,-42,-68,-28,-93,-76,-171,-160,-281,-225,-231,-188,-428,-250,-278,-206,-623,-615,-624,-593,-766,-581,-696,-385,-372,-354,-390,-402,-449,-448,-466,-439,-478,-448,-451,-434,-554,-467,-467,-467,-467,-381,-466,-459,-464,-381,-467,-466,-585,-541,-779,-782,-5447,-5509,-5405,-5397,-1328,-993,-968,-566,-692,-607,-682,-685,-640,-591,-629,-616,-758,-712,-719,-706,-1003,-913]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 O-O 6. Re1 Ng4 7. Rf1 Nf6 8. Nbd2 d6 9. c3 a5 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} 10. Re1 Be6 11. Bb5 Qb8 {The position is equal.} 12. Nf1 Qa7 13. Be3 {aiming for d4.} Bxe3 14. Nxe3 Ne7 15. Ba4 Ng6 16. Bc2 {[#]} a4 $146 ({Predecessor:} 16... Qb6 17. Qd2 Qxb2 {½-½ (83) Jakovenko,D (2721)-Wen,Y (2613) China 2017}) 17. d4 h6 18. Nf5 Rfe8 19. Qd2 Kh7 20. g3 Qb6 21. Ne3 Qa5 22. d5 Bd7 23. Rad1 b5 24. h4 Qb6 25. Kg2 Rad8 26. h5 Ne7 27. Rh1 c6 28. Rh4 cxd5 29. exd5+ Kg8 30. b3 {[%cal Rb3a4]} axb3 31. axb3 Ra8 32. Qc1 Rec8 33. c4 bxc4 34. bxc4 Qc5 35. Nd2 Ra2 36. Nb3 (36. Nb1 $11 {keeps the balance.}) 36... Qa7 $17 37. Qb1 (37. Nd2 $17 {was worth a try.}) 37... Rb8 $19 38. Kg1 (38. Rd2 $17 {keeps fighting.} Nf5 39. Bxf5 Rxd2 40. Nxd2 Rxb1 41. Bxb1) 38... Ra3 39. c5 dxc5 {And now ...Ba4 would win.} 40. Nc4 $2 {[#]} (40. Qb2) 40... Ra4 (40... Nf5 $142 $1 {[%mdl 512]} 41. Bxf5 Rbxb3) 41. Qc1 Nexd5 42. Nxc5 $2 (42. Nbd2 Rab4 43. Re1) 42... Qxc5 43. Bxa4 Bxa4 44. Re1 e4 {...Rc8 is the strong threat.} 45. Nd2 Qxc1 46. Rxc1 Re8 47. Rc5 Nb6 48. Rf4 Bd1 49. Rb5 Nbd7 50. Rb4 e3 51. fxe3 Bxh5 52. Kf2 Bg6 53. Rfd4 Ne5 54. Ra4 h5 55. e4 Kh7 56. Kg2 Ned7 57. Kf3 Nc5 {Black is clearly winning.} 58. Ra5 Ncxe4 59. Nc4 Ng4 60. Kf4 Nc3 {( -> ...Ne2+)} 61. Kf3 Be4+ 62. Rxe4 Nxe4 63. Rxh5+ Nh6 64. Ne3 Nf6 65. Rg5 g6 66. Ra5 Kg7 67. g4 Nhg8 68. Nc4 {[#]} Nxg4 $1 69. Nd6 (69. Kxg4 Re4+) 69... Ne5+ 70. Ke4 Re6 {Accuracy: White = 40%, Black = 67%.} 0-1

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "11.7"]
[White "Gelfand, Boris"]
[Black "Wang, Hao"]
[Result "0-1"]
[ECO "A18"]
[WhiteElo "2676"]
[BlackElo "2735"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,86,24,19,20,22,20,25,24,16,12,-6,-4,0,-4,-77,0,-1,-11,-5,-3,-15,-5,-32,-28,-16,0,-46,-39,-57,-19,-23,-23,-23,-20,-18,-20,-23,-21,-72,-25,-45,-31,-43,-35,-63,-70,-102,-102,-196,-136,-149,-168,-333,-302,-356,-387,-514,-533,-577,-595,-842,-713,-992,-985,-1920,-1884,-1813,-1543,-29987,-29988,-29987,-29986,-29986,-29987]} 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 e5 8. Nf3 Nc6 {A18: English Opening: Flohr-Mikenas System (1 c4 Nf6 2 Nc3 e6 3 e4)} (8... exd4 9. Bg5 Qe6+ 10. Be2 Be7 11. cxd4 Bxg5 12. Nxg5 Qg6 13. f4 O-O 14. O-O h6 15. Nf3 Nc6 16. Rc1 Qd6 17. Qd2 Bg4 18. c5 Qf6 19. d5 {½-½ (49) Navara,D (2727)-Harikrishna,P (2732) Prague 2018}) 9. Be2 exd4 10. Bg5 Qg6 {White has an edge.} 11. cxd4 Bg4 12. Be3 $146 ({Predecessor:} 12. h4 Bxf3 13. Bxf3 Qe6+ 14. Be2 Bb4+ 15. Kf1 Qd7 16. d5 {1-0 (34) Janssen,R (2503)-Buckels,V (2412) Netherlands 2018}) 12... Bb4+ 13. Kf1 $1 O-O 14. h4 (14. Qb3 $11 Be7 15. h3 Bxf3 16. Bxf3) 14... Rfe8 ({Black should try} 14... Bc3 $1 $17 {[%cal Rc3a1]} 15. Rb1 Bxf3 16. gxf3 Bxd4 $1 {[%mdl 512]} 17. Rxb7 Rad8) 15. Rb1 $11 {Hoping for d5.} a5 $36 {[%cal Ba7a5,Ba5a4][%mdl 2080] [#] Black has some pressure.} 16. h5 $1 {[%mdl 512]} Qf6 (16... Bxh5 17. Bd3) 17. h6 g6 18. Kg1 b6 19. Rb3 Bf8 20. d5 a4 21. Rb1 Ne5 22. Nxe5 $1 Bxe2 23. Qxe2 {Black must now prevent Nd3.} Rxe5 24. Qc2 Rae8 25. Rh3 ({But not} 25. Qxa4 $2 Rxe3 26. fxe3 Rxe3 $19) 25... a3 26. Rf3 (26. Qc3 $11) 26... Qh4 27. Rh3 Qg4 28. Rf1 Re4 29. Rc1 Qf5 30. Qa4 Bd6 31. Rf3 {[#]} (31. Qc2 $17) 31... Qh5 $1 $19 {[%cal Rh5h2] aiming for ...Qh2+.} 32. Rh3 {[#]} Qe5 $1 33. Qc2 $2 (33. Rf1 {was worth a try.}) 33... f5 34. Rf1 Qb2 35. Qa4 Qxa2 36. Qd7 {[%csl Gh6][%cal Rd7g7]} R4e7 37. Qc6 Qb2 {Strongly threatening ...a2.} 38. Bc1 Qe2 {( -> ...Qxf1+!)} 39. Re3 Rxe3 40. Bxe3 Rxe3 41. fxe3 Qxe3+ {[%mdl 64] Double Attack. Black mates.} 42. Rf2 Qe1+ 43. Rf1 Bc5+ {Accuracy: White = 41%, Black = 74%.} 0-1

[Event "IMSA Rapid Men 2019"]
[Site "Hengshui"]
[Date "2019.05.16"]
[Round "11.8"]
[White "Leko, Peter"]
[Black "Ponomariov, Ruslan"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2674"]
[BlackElo "2675"]
[Annotator "TA"]
[PlyCount "137"]
[EventDate "2019.05.14"]
[EventType "rapid"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,137,29,23,25,43,29,29,26,23,-24,-14,1,39,13,22,21,53,45,45,52,49,34,65,45,45,50,56,60,53,56,61,45,34,32,50,59,93,68,60,62,83,73,77,84,77,81,101,24,94,110,126,117,120,106,113,118,152,139,158,134,212,80,121,127,123,41,31,0,67,33,33,33,33,33,33,33,32,32,23,22,64,32,58,33,130,125,128,124,100,100,152,152,153,152,138,41,110,19,93,93,75,80,106,0,0,0,80,47,116,23,23,0,31,27,32,0,6,0,19,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c6 2. d4 d5 3. e5 c5 4. Nf3 Nc6 5. dxc5 e6 6. Be3 {B12: Caro-Kann: Advance Variation} Nh6 7. c3 Nf5 8. Bd4 {White has an edge.} Bd7 9. Qd2 a5 10. Be2 a4 11. O-O Qa5 12. Qf4 $146 ({Predecessor:} 12. Bd3 Nfxd4 13. cxd4 Qxd2 14. Nbxd2 {1-0 (47) Socko,B (2615)-Dziuba,M (2460) Lubniewice 2005}) 12... Bxc5 13. Bxc5 Qxc5 14. Bd3 O-O 15. Na3 Qb6 16. Rab1 Nce7 17. Rfe1 f6 18. Qd2 Be8 19. Nc2 Bg6 20. a3 Nc6 21. Nb4 Nxb4 22. axb4 a3 23. bxa3 Rxa3 24. Rbc1 Ne7 25. exf6 Rxf6 26. Bf1 Nc6 27. Re3 h6 28. Qe1 (28. b5 $1 $16 {[%cal Rb5c6]} Ne7 29. Ne5) 28... Bf7 (28... Ra2 $11 {keeps the balance.}) 29. h3 $16 Ra2 30. b5 Na5 31. Ra1 Rxa1 32. Qxa1 Qc7 33. Ne5 b6 34. Bd3 Qd6 (34... Bh5 $16 {is a better defense.} 35. Qb2 Qd8) 35. g3 (35. Ng4 $18 {and White stays clearly on top.}) 35... h5 36. Qa4 Be8 37. Qh4 (37. h4 $16) 37... Nb3 $14 38. Bc2 Nc5 (38... Qa3 $1 $11 39. Bd3 Nc5) 39. Qb4 Qf8 40. Re2 Nd7 41. Qd4 $36 {[%mdl 2048] Black is under pressure.} Qc5 42. Bd3 Nxe5 43. Rxe5 Qxd4 44. cxd4 {[%mdl 4096] Endgame KRB-KRB} Kf8 45. Kg2 Ke7 46. h4 Kd6 (46... Rf8 $14) 47. Rg5 $1 $16 g6 48. Kf1 Ke7 49. Ke2 Kd6 (49... Kf7 $142) 50. Ke3 Ke7 51. f3 $1 Kd6 52. g4 (52. Kf2 $16) 52... Ke7 (52... hxg4 $14 53. fxg4 (53. Rxg4 e5 $11) 53... Ke7) 53. Be2 ({Better is} 53. gxh5 $1 $16 gxh5 54. Rg7+ Rf7 55. Rg8) 53... Bf7 (53... Rf8 $11 {remains equal.}) 54. gxh5 gxh5 55. f4 Rh6 {[#]} 56. Rg1 (56. f5 $1 $16) 56... Rg6 $11 57. Rg5 (57. Rc1 $11 Rg3+ 58. Bf3) 57... Rh6 $1 $16 58. Bd3 Rh8 {[#]} (58... Kf6 $14) 59. f5 (59. Bg6 $1 $16) 59... exf5 $1 $11 60. Rxf5 Rg8 61. Be2 Rg3+ 62. Rf3 Rg1 {The position is equal.} 63. Rf5 Rg3+ 64. Bf3 Rh3 65. Rf4 Rh2 66. Be2 Rh3+ 67. Bf3 Rh2 68. Be2 Rh3+ 69. Bf3 {Accuracy: White = 51%, Black = 55%.} 1/2-1/2

