[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.18"]
[Round "1.1"]
[White "Sevian, Samuel"]
[Black "Fridman, Daniel"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2677"]
[BlackElo "2644"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,108,17,27,14,29,18,11,0,8,2,37,49,26,8,27,28,60,38,71,41,53,47,61,55,66,64,91,83,124,124,110,115,128,127,127,127,129,122,133,127,139,134,170,168,195,177,172,118,98,109,174,93,89,110,133,0,190,174,187,187,205,203,222,203,372,378,371,359,352,342,468,458,411,302,495,493,476,478,1790,1743,1631,1595,1275,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. 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. h4 (10. Bd3 d5 11. Rhe1 Bg4 12. Bg5 Ne4 13. Bxe4 dxe4 14. Bxe7 Qxe7 15. Qf4 f5 {½-½ (78) Nepomniachtchi,I (2773)-Wei,Y (2736) Abidjan 2019}) 10... Re8 11. Bd3 Bf8 $146 ({Predecessor:} 11... d5 12. Ng5 h6 13. f3 c5 14. g4 Qa5 15. Kb1 c4 {0-1 (29) Borisek,J (2578)-Bogner,S (2619) Batumi 2018}) 12. Ng5 h6 13. f3 c5 ({Avoid the trap} 13... hxg5 $2 14. hxg5 Be7 15. g4 $18 (15. gxf6 Bxf6 16. g4 Bxg4 $18)) 14. g4 Qa5 15. Kb1 $1 b5 (15... hxg5 $2 16. hxg5 Nh5 17. Qh2 $18) 16. Ne4 Nxe4 17. Bxe4 Be6 18. c4 $36 {[%mdl 2048] Black is under pressure.} Qxd2 19. Bxd2 Rac8 20. cxb5 d5 21. Bd3 c4 22. Bf5 a6 23. bxa6 Ra8 24. Bc3 Rxa6 25. h5 Rb8 26. Rhe1 Ba3 27. b3 Bc5 28. f4 Rba8 29. a4 Rb8 30. Be5 (30. Bxe6 $18 fxe6 31. Ka2) 30... Rb7 $16 31. Ka2 Bb4 (31... Rab6 $16 {keeps fighting.}) 32. Re2 (32. Bxe6 $18 Rxe6 33. f5 cxb3+ 34. cxb3) 32... d4 33. Bxe6 ({Not} 33. Bxd4 cxb3+ 34. Kb2 bxc2 $15) 33... Rxe6 34. Rxd4 (34. f5 $1 $16 {[%cal Rf5e6]} d3 35. cxd3 cxb3+ 36. Kb1) 34... f6 $2 (34... cxb3+ $1 $11 {and Black is okay.} 35. cxb3 f6) 35. Rxc4 $18 fxe5 36. Rxe5 Rxe5 37. fxe5 {[%mdl 4096] Endgame KRB-KR} Kf7 {[#]} 38. c3 $1 {[%cal Rc3b4]} Ba5 $2 (38... Be7 39. b4 Ke6) 39. b4 Bc7 40. Kb3 Ke6 41. Rc6+ Kxe5 {[#]} 42. a5 $1 {[%mdl 512]} Kd5 (42... Bxa5 43. Rc5+) 43. Ra6 Bf4 $2 (43... Bg3 44. c4+ Kd4) 44. c4+ Kd4 {intending ...Re7.} 45. Re6 Bd2 (45... Rf7 $142 46. Re1 Ra7 47. Rd1+ Ke4) 46. Rd6+ Ke3 {[#]} 47. Rxd2 $1 {[%mdl 512]} Kxd2 {[#] KR-KP} 48. a6 $2 (48. b5 $1 $18 Ke3 49. a6) 48... Ra7 $1 $11 {[%cal Ra7a6] The position is equal.} 49. b5 Kd3 50. c5 {Black must now prevent b6.} Kd4 51. b6 Rxa6 52. b7 Kxc5 {( -> ...Rb6+)} 53. b8=Q Rb6+ 54. Qxb6+ $1 Kxb6 {Accuracy: White = 66%, Black = 55%.} 1/2-1/2

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.18"]
[Round "1.2"]
[White "Oparin, Grigoriy"]
[Black "Gabuzyan, Hovhannes"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "2644"]
[BlackElo "2619"]
[Annotator "TA"]
[PlyCount "153"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,153,8,17,0,6,0,13,-2,0,0,0,-12,-13,-20,-15,-21,0,0,0,-10,46,56,51,55,42,50,52,56,87,83,87,83,83,81,86,78,86,54,80,71,80,77,79,74,71,84,72,56,71,37,39,34,51,48,54,35,35,14,45,29,51,40,56,50,55,0,58,56,58,58,58,58,75,75,158,143,143,143,143,143,153,72,72,75,68,72,90,42,103,87,114,114,114,107,114,114,114,114,114,112,114,114,114,114,114,114,114,114,114,114,114,114,114,114,114,114,114,114,114,114,114,114,114,114,114,114,114,114,114,107,107,107,107,107,107,96,96,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 e6 3. g3 b5 4. Bg5 Bb7 (4... c5 5. d5 Qa5+ 6. Bd2 Qb6 7. dxe6 fxe6 8. a4 b4 9. a5 Qd8 10. Bg2 Nc6 11. Ne5 Nxe5 12. Bxa8 {½-½ (32) Ding,L (2813)-Carlsen,M (2835) Wijk aan Zee 2019}) 5. Nbd2 Be7 6. Bg2 {A46: 1 d4 Nf6 2 Nf3 e6: Torre, London and Colle Systems} c5 7. dxc5 Na6 8. c4 $146 ({Predecessor:} 8. e4 h6 9. Be3 O-O 10. e5 Nd5 11. Bd4 Nxc5 {½-½ (62) Kaliev,K (2222)-Walczak,T (2153) ICCF email 2016}) 8... b4 9. Nb3 Rc8 10. Rc1 Nxc5 11. O-O O-O 12. Nxc5 Rxc5 13. Be3 Ra5 14. Qb3 Ne4 {[#]} ({Black should try} 14... Bc6 $11) 15. a3 $1 $14 {[%cal Ba2a3,Ba3b4][%mdl 544]} Nc5 $1 {[%cal Rc5b3]} (15... bxa3 16. Qxb7) 16. Bxc5 Bxc5 17. axb4 Qb6 18. b5 a6 {[#]} 19. Qc3 $1 {Strongly threatening b4.} Bxf3 20. Bxf3 {And now b4 would win.} Ra4 21. e3 axb5 22. cxb5 Be7 23. Qd3 Rd8 24. Rc2 Bf6 25. b3 Ra5 {[#]} 26. Be2 $1 g6 27. Rfc1 Kg7 28. Qc4 Ra7 29. b4 h5 30. h4 Qb8 31. Qd3 Be5 32. Kg2 Ra4 33. Qb3 Ra7 34. Rc5 Bf6 35. Qd3 Be7 36. Qd4+ Bf6 37. Qd3 Be7 38. Rc8 $36 {[%mdl 2048] White has good play.} Rxc8 39. Rxc8 Qxc8 40. Qd4+ {[%mdl 64] Double Attack} Bf6 41. Qxa7 d5 (41... Qc2 $142) 42. b6 $16 {Black must now prevent b7.} Be5 43. Qe7 Qf8 44. Qc5 Bd6 45. Qd4+ (45. Qc3+ $142 Kh7 46. b7) 45... Kg8 46. g4 hxg4 47. Qxg4 Qg7 48. b7 Qe5 ({Better is} 48... f5 $14 49. Qg5 Qxb7) 49. Bf3 Kg7 50. Qg3 Bb8 51. b5 {[%cal Bb4b5,Bb5b6][%mdl 32]} Qc7 52. Qxc7 Bxc7 {[%mdl 4096] Endgame KB-KB} 53. b6 Bb8 54. Be2 Kf6 55. Bb5 Ke7 56. Kf3 Kf6 57. Ke2 Ke7 58. Kd3 Be5 59. Kc2 Bb8 60. Kb3 Bd6 61. Ka4 Bb8 62. Bd3 Kd6 63. Kb5 Kd7 64. Bc2 Kd6 65. Ba4 Kd7 66. Kc5+ Kd8 67. Kc6 Ke7 68. Bd1 Kd8 69. h5 gxh5 70. Bxh5 f5 71. Bg6 Ke7 72. Bh7 Kd8 73. Bxf5 (73. f4 $16) 73... exf5 $11 {The position is equal.} 74. Kxd5 Kd7 75. f4 Bd6 76. e4 fxe4 77. Kxe4 {Accuracy: White = 60%, Black = 59%.} 1/2-1/2

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.18"]
[Round "1.3"]
[White "Ganguly, Surya Shekhar"]
[Black "Kovalenko, Igor"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2642"]
[BlackElo "2651"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,97,24,25,25,25,25,25,25,21,28,28,26,25,23,22,36,20,27,19,37,0,0,-7,0,-6,0,0,0,-15,0,-8,-25,-16,0,15,63,0,71,33,51,49,50,28,106,88,82,91,194,206,206,206,197,137,427,407,810,810,629,606,5402,672,670,670,669,272,660,641,1006,1006,886,880,835,820,705,563]} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Bg4 7. Qb3 Qd7 8. Nd2 e6 9. Ngf3 Bd6 10. Bxd6 Qxd6 11. O-O O-O 12. Rfe1 Bxf3 13. Nxf3 Rab8 {[#] B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack} 14. Qd1 $146 ({Predecessor:} 14. a4 a6 15. Ne5 Qc7 16. Qc2 b5 17. f4 g6 18. Re3 Qb6 19. axb5 axb5 20. Rh3 Nxe5 21. fxe5 {½-½ (52) Ganguly,S (2633)-Megaranto,S (2526) Sharjah 2019}) 14... Qf4 15. Qe2 a6 {White has an edge.} 16. a3 Nd7 17. Qc2 g6 18. Re3 Rfe8 19. Rae1 b5 20. g3 Qf6 21. Qe2 Nb6 22. b4 Rbc8 23. h4 Re7 24. Nh2 Qg7 25. h5 Nd8 26. Qd2 Rec7 27. hxg6 hxg6 28. Rc1 Qh8 29. Kg2 Qg7 30. Ng4 ({Better is} 30. Ree1 $14) 30... Nd7 (30... f5 $1 $11 31. Ne5 Nf7) 31. a4 bxa4 32. Bxa6 Ra8 33. b5 Nb8 (33... Nb6 $11 {remains equal.}) 34. Ra1 (34. Qe2 {keeps more tension.} Nd7 35. Rh1 Nb6 36. Qe1 Nc4 37. Re2) 34... Nxa6 35. Rxa4 {[%mdl 64] Pin} Rca7 (35... f5 $16) 36. bxa6 Rxa6 37. Rxa6 Rxa6 38. Re1 (38. Qb2 $18) 38... g5 $2 {[%mdl 8192]} (38... f5 $16) 39. Qb2 $18 Ra8 (39... f5 $142) 40. Qb5 Qf8 41. Rh1 Qe7 {[#]} 42. Ne5 (42. Nf6+ $142 $1 {[%mdl 512]} Kg7 (42... Qxf6 43. Qe8+) 43. Ne8+ Kg6 44. Rh8) 42... Ra7 43. Qb1 {Qh7+ would kill now.} Qf6 44. Qh7+ Kf8 {If Black can now play ...Rb7 this consolidates a bit.} 45. Rh6 {White is clearly winning.} Qg7 {[#]} 46. Qh8+ $1 Qxh8 47. Rxh8+ Ke7 {[#]} 48. Rxd8 $1 {[%mdl 512]} Rc7 (48... Kxd8 49. Nc6+) 49. Rg8 {Accuracy: White = 78%, Black = 36%.} 1-0

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.19"]
[Round "2.1"]
[White "Fridman, Daniel"]
[Black "Kovalenko, Igor"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "2644"]
[BlackElo "2651"]
[Annotator "ChessBase"]
[PlyCount "61"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:01:22]} Nf6 {[%emt 0:00:28]} 2. Nf3 {[%emt 0:00:13]} d5 {[%emt 0:00:29]} 3. c4 {[%emt 0:00:07]} e6 {[%emt 0:00:03]} 4. g3 {[%emt 0:00:21]} Bb4+ {[%emt 0:00:04]} 5. Bd2 {[%emt 0:00:06]} Be7 {[%emt 0:00:04]} 6. Bg2 {[%emt 0:00:07]} O-O {[%emt 0:00:04]} 7. O-O {[%emt 0:00:15]} Nbd7 {[%emt 0:01:14]} 8. Qc2 {[%emt 0:00:26]} c6 {[%emt 0:00:04]} 9. Rd1 {[%emt 0:01:44]} b6 {[%emt 0:03:53]} 10. Bf4 {[%emt 0:01:25]} Ba6 {[%emt 0:01:16]} 11. Ne5 {[%emt 0:01:55]} Rc8 {[%emt 0:22:08]} 12. cxd5 {[%emt 0:02:31]} cxd5 {[%emt 0:00:05]} 13. Nc6 {[%emt 0:00:24]} Qe8 {[%emt 0:00:52]} 14. Nxe7+ {[%emt 0:02:04]} Qxe7 {[%emt 0:00:05]} 15. Nc3 {[%emt 0:00:07]} Bb7 {[%emt 0:01:50]} 16. Rac1 {[%emt 0:01:50]} a6 {[%emt 0:02:00]} 17. Qd3 {[%emt 0:02:04]} Rc6 {[%emt 0:01:37]} 18. Nb1 {[%emt 0:04:59]} Rfc8 {[%emt 0:00:17]} 19. Rxc6 {[%emt 0:00:12]} Rxc6 {[%emt 0:00:03]} 20. Qa3 {[%emt 0:09:03]} Qxa3 {[%emt 0:04:40]} 21. Nxa3 {[%emt 0:00:09]} a5 {[%emt 0:00:02]} 22. Rc1 {[%emt 0:01:17]} Rxc1+ {[%emt 0:00:41]} 23. Bxc1 {[%emt 0:00:07]} Ba6 {[%emt 0:00:02]} 24. Bf1 {[%emt 0:00:44]} Ne4 {[%emt 0:01:34]} 25. f3 {[%emt 0:03:03]} Nd6 {[%emt 0:00:03]} 26. Bf4 {[%emt 0:00:24]} Ne8 {[%emt 0:01:37]} 27. Bd2 {[%emt 0:01:13]} Nb8 {[%emt 0:00:38]} 28. e3 {[%emt 0:00:25]} Bxf1 {[%emt 0:00:31]} 29. Kxf1 {[%emt 0:00:06]} Nd6 {[%emt 0:00:02]} 30. Ke2 {[%emt 0:01:23]} Nc6 {[%emt 0:00:05]} 31. Nc2 {[%emt 0:00:24]} 1/2-1/2

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.19"]
[Round "2.2"]
[White "Gabuzyan, Hovhannes"]
[Black "Ganguly, Surya Shekhar"]
[Result "0-1"]
[ECO "E32"]
[WhiteElo "2619"]
[BlackElo "2642"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,108,-23,-14,0,0,0,35,8,15,-9,-9,-32,-42,-42,-39,-100,-108,-115,-25,-26,-25,-11,0,-67,-47,-43,-16,-95,-95,-107,-100,-102,-87,-97,-82,-141,-152,-138,-159,-173,-145,-142,-133,-170,-157,-136,-133,-134,-95,-94,-87,-180,-175,-177,-181,-199,-197,-211,-216,-218,-210,-231,-230,-224,-208,-280,-266,-281,-283,-259,-239,-339,-197,-370,-331,-642,-639,-622,-610,-589,-566,-948,-944,-1147,-1147,-1147,-1114,-1061,-1061,-1948,-1644,-5600,-1686,-29971,-29972,-5106,-4970]} 1. c4 Nf6 2. Nc3 e6 3. d4 Bb4 4. Qc2 O-O 5. Bg5 c5 6. dxc5 h6 7. Bh4 Na6 {[%cal Bb8a6,Ba6c5,Bc5e4][%mdl 32]} 8. e3 {E32: Nimzo-Indian: Classical (4 Qc2): 4...0-0} Nxc5 9. Nge2 Nce4 10. a3 {White is slightly better.} Qa5 11. Bxf6 $146 ({Predecessor:} 11. Rc1 Bxc3+ 12. Nxc3 Nxc3 13. Qxc3 Qxc3+ 14. Rxc3 g5 15. Bg3 Ne4 {1-0 (59) Dao,T (2583)-Yu,S (2476) Bangkok 2004}) 11... Nxf6 12. O-O-O Be7 13. Nd4 a6 14. g4 ({Better is} 14. e4 $15) 14... b5 $1 $17 15. Rg1 b4 (15... bxc4 $17 {Hoping for ...Rb8.} 16. f4 Bb7) 16. axb4 Bxb4 17. Nb3 Qe5 18. Na2 (18. h4 $11) 18... Be7 $15 ({Much worse is} 18... Qxh2 $6 19. Bd3 $14) 19. h4 Ne8 20. Nd4 (20. Nc3 $11 {keeps the balance.}) 20... Bb7 $17 21. g5 h5 22. Bd3 g6 23. Nc3 Ng7 24. Nde2 (24. Rde1 $142) 24... Rab8 $1 25. Nf4 {With the idea Bxg6.} Qa5 26. Kd2 Bf3 27. Ra1 Qb6 28. Ra2 Bd6 29. Nfe2 Be5 30. Rga1 Rfc8 31. Rxa6 Qxb2 32. Nd4 {[#]} (32. Qxb2 $17 {was called for.} Rxb2+ 33. Kc1 Bxc3 34. Nxc3 Rxf2 35. e4) 32... Nf5 $1 $19 {[%cal Rf5d4]} 33. Bxf5 gxf5 ({Don't do} 33... exf5 34. Rb1 $15) 34. R6a2 Qxc2+ 35. Rxc2 Bxd4 $1 36. exd4 Rxc4 37. Ra4 Rxa4 38. Nxa4 {[%mdl 4096] Endgame KRB-KRN} Rb4 39. Rc8+ Kg7 40. Nc5 {[#]} Bc6 $1 41. Ke3 {[#]} f4+ $1 {[%mdl 512]} 42. Kd3 (42. Kxf4 $142 Rxd4+ 43. Ke3 Rxh4 44. Rc7) 42... Rb2 (42... Bb5+ $142 43. Kc2 Rc4+ 44. Kb3 Rxd4) 43. d5 $2 (43. Rd8) 43... exd5 44. Rd8 $2 (44. f3 Rf2 45. Rd8) 44... Rxf2 45. Nxd7 {White wants to play Nf6!} Bb5+ 46. Kd4 {intending Nf6!} Rd2+ 47. Kc3 Rd3+ 48. Kc2 f3 {And now ...f2 would win.} 49. Nf6 Kg6 {White must now prevent ...f2.} 50. Rd6 Kf5 51. Nxh5 Kg4 52. g6 fxg6 53. Ng7 f2 54. Rxg6+ Kh3 {Accuracy: White = 48%, Black = 79%.} 0-1

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.19"]
[Round "2.3"]
[White "Sevian, Samuel"]
[Black "Oparin, Grigoriy"]
[Result "1/2-1/2"]
[ECO "C95"]
[WhiteElo "2677"]
[BlackElo "2644"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 30,66,25,25,20,20,24,21,18,25,24,19,19,19,26,23,24,23,23,25,25,22,54,8,13,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 10. d4 Nbd7 11. Bc2 Bb7 12. Nbd2 Re8 13. Nf1 Bf8 14. Ng3 g6 15. a4 Bg7 16. Bd3 exd4 {C95: Closed Ruy Lopez: Breyer Variation with 10 d4} 17. cxd4 c5 18. axb5 axb5 19. Rxa8 Bxa8 {[#]} 20. Bxb5 $146 {Strongly threatening dxc5.} ({Predecessor:} 20. dxc5 Nxc5 21. Bxb5 Rf8 22. e5 dxe5 23. Qxd8 Rxd8 24. Nxe5 {½-½ (39) Hou,Y (2658)-Vitiugov,N (2734) Belokurikha 2018}) 20... cxd4 21. Nxd4 Nxe4 22. Nxe4 Rxe4 23. Rxe4 Bxe4 24. Bf1 Bb7 25. b4 Nf6 26. Nb5 Nd5 {The position is equal.} 27. Bc4 Qe7 28. Bxd5 Bxd5 29. Qxd5 Qe1+ {[%mdl 64] [#] Double Attack} 30. Kh2 Qxc1 31. Nxd6 Qf4+ {[%mdl 64] Double Attack} 32. Kg1 $1 {g3 is the strong threat.} Qc1+ 33. Kh2 Qf4+ {[%mdl 64] Double Attack. Accuracy: White = 80%, Black = 86%.} 1/2-1/2

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.20"]
[Round "3.1"]
[White "Oparin, Grigoriy"]
[Black "Fridman, Daniel"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2644"]
[BlackElo "2644"]
[Annotator "TA"]
[PlyCount "165"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,164,7,25,0,41,45,50,42,51,41,58,65,52,59,62,25,39,33,60,62,61,73,66,70,62,50,42,9,22,12,22,22,22,22,22,22,22,22,102,102,102,102,102,102,102,102,102,102,102,102,102,102,102,102,102,14,14,0,102,102,103,103,103,103,102,88,103,103,121,104,121,121,121,121,121,8,8,0,121,0,8,0,103,103,121,103,121,121,121,121,121,121,121,103,103,20,150,150,150,150,164,164,164,164,164,158,635,558,11827,9961,29974,29967,29965,29968,1882,82,82,82,82,83,29972,29973,29973,29974,29974,29975,29978,29980,29981,29981,29981,29982,29982,29983,29983,29984,29984,29985,29985,29986,29989,29990,29996,29997,29997,29998,29999]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O c5 5. d4 Nc6 6. c4 dxc4 7. Qa4 Bd7 8. Qxc4 b5 9. Qd3 c4 10. Qd1 Rc8 11. Ne5 {E04: Open Catalan: 5 Nf3} Bd6 12. a4 $146 ({Predecessor:} 12. Nxd7 Qxd7 13. Nc3 a6 14. Bg5 Be7 15. e3 O-O 16. Qe2 Rfd8 17. Rfd1 Nd5 18. Bxe7 Qxe7 {½-½ (55) Fedoseev,V (2718)-Yu,Y (2751) Riadh 2017}) 12... Nxe5 13. dxe5 {White is slightly better.} Bxe5 {And now ...b4 would win.} 14. axb5 Qb6 15. Nc3 Bxc3 16. bxc3 O-O 17. Bg5 {Black must now prevent Bxf6.} Bxb5 18. Be3 Qd8 19. Rxa7 Bc6 20. Qxd8 Rfxd8 21. Bxc6 Rxc6 22. Bg5 Rb6 23. Rc7 Rb2 24. e3 h6 25. Bxf6 $1 gxf6 26. Rxc4 $11 {[%mdl 4096] Endgame KRR-KRR} Rc2 27. Ra1 f5 28. g4 Rdd2 (28... Rd5 $1 $11) 29. Rf4 $16 Rxc3 30. gxf5 exf5 31. Rxf5 Rdc2 32. Raa5 Kg7 33. h4 Rc4 34. Kg2 Rg4+ 35. Kf3 Rg6 36. Ra4 Rc7 37. Kf4 (37. Rd4 $16) 37... Rc2 $11 38. Kf3 (38. Ke4 $11) 38... Rc7 $1 $16 39. Ra3 (39. Raf4 {with more complications.} Rg1 40. Ra5 Rg6 41. h5 Rgc6 42. Rff5) 39... Rf6 40. Rxf6 Kxf6 {KR-KR} 41. e4 Rc2 42. Kg3 Kg7 43. f3 Rc1 44. Ra7 Rg1+ 45. Kf4 Rh1 46. Kg4 Rg1+ 47. Kf5 (47. Kh5 $1 $16) 47... Rh1 $11 48. Kg4 ({White should play} 48. Ra2 $11) 48... Rg1+ $1 $16 49. Kf4 (49. Kh5 $1 $16) 49... Rh1 $11 50. Kg3 (50. e5 $11) 50... Rg1+ $1 $16 51. Kh2 $1 {[%cal Rh2g1]} Re1 52. Kg2 Re2+ 53. Kg3 Re1 54. Ra2 Kf6 55. Rg2 Rh1 56. Kg4 Kg6 57. e5 (57. Kf4+ $16 Kf6 58. Kg3) 57... Kg7 (57... h5+ $11 {keeps the balance.} 58. Kf4+ Kh6) 58. f4 Rf1 59. f5 Kf8 60. Ra2 Re1 61. f6 $1 {[%cal Ra2a8]} Kg8 62. Kf5 Rf1+ $2 (62... Rh1 $16 63. Rg2+ Kf8) 63. Ke4 $18 Rh1 64. Kd5 $1 {[%cal Rd5d6]} h5 65. Kd6 Rb1 66. Ra8+ Kh7 67. e6 $2 (67. Rd8 $1 $18 {Threatens to win with Ke7.} Rb5 68. Rf8) 67... Rb6+ $16 68. Ke7 Rxe6+ 69. Kxf7 Re4 $2 {[%mdl 8192]} (69... Rb6 $16) 70. Kf8 {White mates.} Rxh4 71. f7 Re4 72. Re8 $1 Rf4 73. Ke7 Kh6 74. f8=Q+ Rxf8 75. Rxf8 {KR-KP} ({And not} 75. Kxf8 Kg5 $11) 75... Kg5 76. Ke6 Kg4 77. Ke5 h4 {[#]} 78. Ke4 $1 Kg3 79. Ke3 h3 {[#]} 80. Rg8+ $1 Kh2 81. Kf2 Kh1 82. Re8 h2 83. Re1# {Accuracy: White = 51%, Black = 55%.} 1-0

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.20"]
[Round "3.2"]
[White "Ganguly, Surya Shekhar"]
[Black "Sevian, Samuel"]
[Result "1/2-1/2"]
[ECO "A20"]
[WhiteElo "2642"]
[BlackElo "2677"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,120,0,2,29,35,22,23,35,25,25,32,26,35,51,30,27,27,37,30,31,38,31,41,32,20,20,21,31,31,32,32,32,29,35,35,57,56,60,62,58,58,62,56,57,56,62,58,68,68,68,68,73,30,39,30,34,0,28,40,54,48,49,85,58,96,89,89,272,269,274,226,351,366,335,256,256,256,203,252,202,199,208,90,222,52,49,0,8,8,8,8,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nf3 Nc6 6. O-O Nf6 {A20: English Opening: 1...e5} (6... Nb6 7. b3 Be7 8. Bb2 f6 9. d3 O-O 10. Nbd2 Be6 11. Rc1 Qd7 12. Ne4 Rad8 13. Qc2 Nd5 14. Rfd1 a5 15. a3 Kh8 16. d4 f5 17. Nc5 Bxc5 18. Qxc5 e4 19. Ne5 Nxe5 20. dxe5 b6 {½-½ (67) Le,Q (2714)-Giri,A (2783) St Petersburg 2018}) 7. d3 Bd6 $146 ({Predecessor:} 7... Bc5 8. Nc3 O-O 9. Na4 Bd6 10. Be3 h6 11. Rc1 Re8 12. Nc5 Rb8 13. Qa4 a5 14. Nd2 b5 15. Qh4 Ne7 16. Nde4 Nxe4 17. Nxe4 {1-0 (67) Zwardon,V (2399)-Kolar,S (2057) Karvina 2014}) 8. Nbd2 O-O {White has an edge.} 9. b3 Re8 10. Bb2 Bf5 11. Nc4 Qd7 12. d4 {[%cal Rd4e5]} (12. b4 $5) 12... e4 13. Nfe5 Bxe5 14. dxe5 Nd5 15. Nd6 cxd6 16. Qxd5 {[%mdl 64] Double Attack} Nxe5 17. Bxe4 Bxe4 18. Qxe4 Nc6 19. Qf3 Qe6 20. e3 d5 21. Rfd1 Rad8 22. Rd2 Qe4 23. Kg2 Qxf3+ 24. Kxf3 Rd7 25. Rad1 Red8 26. g4 f6 27. h4 Kf7 28. h5 Ke6 29. Kf4 Ne5 30. Bd4 Nc6 31. Bc5 g6 32. hxg6 hxg6 33. Rh1 g5+ 34. Kg3 b6 35. Ba3 d4 {Threatening ...dxe3.} 36. Rc2 Ne5 {Black wants to play ...dxe3.} 37. f4 Nd3 38. f5+ $1 Kd5 $2 (38... Ke5 $16) 39. Rd1 $18 Ke4 40. exd4 {Re2+ is the strong threat.} Nf4 {[#]} (40... Ke3 {might work better.} 41. Rc3 Rxd4) 41. d5 $1 {[%mdl 512]} Rxd5 42. Rc4+ Ke3 43. Bc1+ $1 Ke2 44. Rxd5 Nxd5 {[%mdl 4096] Endgame [#] KRB-KRN} 45. Rd4 $1 Rd7 {[#]} 46. a4 (46. Rd2+ $1 $18 {and the rest is easy.} Ke1 47. Kf3) 46... b5 (46... a5 $16 {is a better defense.} 47. Rd2+ Ke1) 47. axb5 $2 ({White has to play} 47. Rd2+ $18 Ke1 48. axb5) 47... Nb6 $1 $14 48. Rxd7 (48. Re4+ {looks sharper.} Kf1 49. Kf3 Rh7 50. Rd4 Rh3+ 51. Ke4) 48... Nxd7 {KB-KN. The position is equal.} 49. Bb2 {Strongly threatening Bd4.} Ke3 50. Ba3 Kd3 51. Bb2 {Threatens to win with Kf3.} Ke3 52. b4 Ke4 53. Bc3 Kd3 54. Be1 Kc4 55. Bf2 Kxb5 {aiming for ...a6.} 56. Bxa7 Kxb4 57. Bd4 Kc4 58. Bb2 Kd5 59. Kf3 Ne5+ 60. Bxe5 Kxe5 {Accuracy: White = 68%, Black = 58%.} 1/2-1/2

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.20"]
[Round "3.3"]
[White "Kovalenko, Igor"]
[Black "Gabuzyan, Hovhannes"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "2651"]
[BlackElo "2619"]
[Annotator "TA"]
[PlyCount "112"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,112,4,0,16,5,7,8,14,-7,0,4,12,11,27,30,57,27,27,22,32,22,31,24,21,25,31,24,41,27,29,26,41,7,7,0,0,0,12,0,14,-18,-8,-9,-4,-60,-60,-59,-60,-56,0,0,9,10,14,13,31,0,0,0,0,0,0,0,0,0,0,3,4,5,20,26,24,28,50,-82,-78,-78,0,-2,0,-31,0,0,79,79,93,93,83,-16,-47,-81,-79,-78,-78,-109,-70,-230,-235,-249,-234,-1189,-489,-600,-596]} 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 O-O 6. c3 Nfd7 {A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems} (6... Nbd7 7. Be2 Qe8 8. O-O e5 9. Bh2 Qe7 10. a4 Re8 11. a5 a6 12. Nbd2 e4 13. Ne1 Nf8 14. Qb3 h5 15. Nc2 N8h7 16. c4 Ng5 17. Kh1 c6 18. Qa3 {1-0 (50) Kamsky,G (2666)-Ragger,M (2701) Germany 2019}) 7. Bc4 Nc6 8. a4 e5 {The position is equal.} 9. Bh2 a5 10. O-O Qe7 11. Na3 Nb6 12. Bb3 $146 ({Predecessor:} 12. Ba2 Rd8 13. Nc4 Nxc4 14. Bxc4 {0-1 (52) Peskov,A-Karjakin,S (2460) Kramatorsk 2002}) 12... h6 13. Nb5 Na7 14. Nxa7 Rxa7 15. e4 Bd7 16. Re1 Raa8 17. Bg3 Bf6 18. Qd2 Kg7 19. Bc2 Rfe8 20. b3 c5 21. dxe5 dxe5 22. c4 Bc6 23. Qc3 Nd7 24. Rad1 Kg8 25. Re2 Bg7 26. Red2 Nf8 27. Qe3 (27. Nh2 $1 $11) 27... f6 $15 28. Nh4 Rad8 29. Rd5 Bxd5 (29... b6 $15) 30. cxd5 $11 Qf7 31. Bd3 b6 32. Bb5 Re7 33. d6 Re6 {Hoping for ...f5.} 34. Bc4 Kh7 35. f4 exf4 36. Qxf4 Qe8 $1 37. Bxe6 Qxe6 38. Qf3 Nd7 39. Qd3 c4 40. bxc4 Nc5 41. Qb1 Nxe4 42. Re1 (42. Qxb6 $14 {keeps the upper hand.} Rd7 43. Qe3) 42... f5 $17 43. Qxb6 Rd7 (43... Qf6 $17 44. Qe3 Nxg3 45. Qxg3 Rxd6) 44. Nf3 $132 {[%mdl 2048] White puts up resistance} Qxc4 45. Be5 $1 Qxa4 (45... Qd5 $5 {[%cal Rg7e5]} 46. Bxg7 Kxg7 $11) 46. Bxg7 Kxg7 {[#]} (46... Rxg7 $11 {keeps the balance.} 47. Ne5 Nf6) 47. Qb2+ $1 $16 ({Inferior is} 47. Ne5 Rxd6 48. Qb7+ (48. Qc7+ Kf6 $17) 48... Kf6 $17) 47... Nf6 48. Re6 {[%mdl 1024] White has strong compensation.} Rf7 49. Nd4 ({White should try} 49. Ne5 $16 Qe4 50. Nxf7 Qxe6 51. Ne5 Qxd6 52. Qb7+ Nd7 53. Nxd7) 49... Qb4 $11 50. Qa1 Qc5 51. Kh1 {aiming for Rxf6!} Qd5 52. Qc3 a4 {[%cal Ba5a4,Ba4a3,Ba3a2][%mdl 32]} 53. Qe3 $2 {[#]} ({Better is} 53. Qa1 $15) 53... a3 $1 $19 {[%cal Ra3a2][%mdl 512] Threatens to win with ...a2.} 54. Qc3 (54. Qxa3 Qxd4) 54... a2 {And now ...Rb7 would win.} 55. Re2 $2 (55. Qa1) 55... Ra7 (55... Ne4 $142 56. Qa1 Ng3+ {[%mdl 64] Double Attack} 57. Kg1 Nxe2+ 58. Nxe2+ Kh7) 56. Qa1 {[#]} Qxd4 $1 {[%mdl 512] Accuracy: White = 42%, Black = 60%.} 0-1

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.21"]
[Round "4.1"]
[White "Ganguly, Surya Shekhar"]
[Black "Fridman, Daniel"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2642"]
[BlackElo "2644"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,69,39,35,51,54,48,21,22,20,22,30,29,23,16,16,16,16,23,17,22,27,21,13,16,13,14,14,15,10,15,21,12,3,11,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bf5 $146 {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. Ne5 Nd7 9. Nc3 Nxe5 10. dxe5 Nxc3 11. bxc3 Qd7 12. Bxf5 Qxf5 13. Qxd5 {next Qb5+ is good for White.} O-O 14. Qxb7 Qxe5 15. Qc6 Rfe8 16. g3 {The position is equal.} Qc5 17. Qf3 Bf6 18. Bd2 Rad8 19. Rfe1 Rxe1+ 20. Rxe1 h5 21. Bf4 Bxc3 22. Re4 Bf6 23. Qe2 g6 24. Re8+ Rxe8 25. Qxe8+ Kg7 26. Qe4 Bd4 27. Kg2 c6 28. c4 Qb6 29. Be5+ Bxe5 30. Qxe5+ $11 {KQ-KQ} Kg8 31. Qd6 Qa6 32. Qb8+ Kh7 33. Qb3 c5 34. h4 Kg7 35. Qc3+ {Accuracy: White = 71%, Black = 84%.} 1/2-1/2

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.21"]
[Round "4.2"]
[White "Kovalenko, Igor"]
[Black "Oparin, Grigoriy"]
[Result "0-1"]
[ECO "A16"]
[WhiteElo "2651"]
[BlackElo "2644"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,120,53,41,30,22,21,12,17,11,26,25,14,14,0,4,0,37,11,15,13,29,0,13,15,30,14,17,19,61,45,275,-29,-20,-24,-17,-20,0,-77,-77,-77,-77,-77,-88,-142,-142,-142,-142,-158,-94,-92,0,-174,-65,-252,-20,-255,-255,-255,-255,-429,-398,-736,-718,-727,-645,-736,-725,-680,-537,-1071,-612,-588,-398,-576,-341,-29964,-29965,-29965,-29967,-29967,-29960,-29954,-29955,-6179,-2452,-29959,-29955,-29959,-29961,-12626,-12645,-7547,-6625,-1933,-1427]} 1. c4 Nf6 2. Nc3 c5 3. Nf3 e6 4. e3 d5 5. d4 Nc6 6. a3 a6 7. dxc5 Bxc5 8. b4 Ba7 9. Bb2 O-O 10. Qc2 Qe7 11. Rd1 Rd8 12. Be2 d4 13. exd4 Nxd4 14. Nxd4 Bxd4 15. O-O {D40: Queen's Gambit Declined: Semi-Tarrasch with 5 e3} e5 16. Na4 Bd7 {Threatens to win with ...Bxa4.} (16... Bg4 17. Bxd4 Rxd4 18. Rxd4 exd4 19. Bxg4 Nxg4 20. h3 Nf6 21. Nc5 a5 22. Qf5 axb4 23. axb4 Qe2 24. Qd3 Qxd3 25. Nxd3 Kf8 {½-½ (25) Markus,R (2615)-Perunovic,M (2597) Novi Sad 2018}) 17. Bxd4 {The position is equal.} Bxa4 18. Qxa4 Rxd4 19. g3 $146 ({Predecessor:} 19. Rxd4 exd4 20. Bf3 Rd8 21. Qd1 d3 22. Qd2 Ne4 {½-½ (37) Kosanovic,D (2334)-Nenezic,M (2407) Belgrade 2013}) 19... Rad8 20. c5 g6 21. Qc2 Kg7 22. Rxd4 exd4 23. Bf3 h5 24. Rd1 h4 25. gxh4 Qe5 26. Qe2 Qf4 27. Rd3 Qxh4 28. Bxb7 {Qe5 is the strong threat.} Nh5 $2 ({Better is} 28... Re8 $14 29. Qd2 Ne4 30. Bxe4 Rxe4) 29. Qd2 $2 (29. Qe5+ $18 Kg8 30. Kf1) 29... Nf4 $11 30. Rg3 d3 {And now ...Ne2+ would win.} 31. Bf3 ({But not} 31. Bxa6 $2 Qf6 $19) 31... Qf6 {White must now prevent ...Qa1+.} 32. h3 (32. Rg4 $1 $11 Rd4 33. Kh1) 32... Re8 $17 33. Kh2 Ne2 34. Qxd3 Nxg3 35. fxg3 {[%mdl 4096] Endgame KQR-KQB} ({White should play} 35. Kxg3 Re1 36. Kg2) 35... Qb2+ 36. Bg2 {[#]} Re2 $1 {[%mdl 1536] Black has strong compensation.} 37. Qf3 Rf2 (37... Qe5 $142 38. Qg4 Rc2 $1 {[%mdl 512]}) 38. Qe4 {[#]} Re2 $1 {[%mdl 512]} 39. Qf3 $19 {[#]} Rc2 (39... Qe5 $1 $19 {Strongly threatening ...Re3.} 40. Qf4 Qxf4 41. gxf4 Ra2) 40. c6 $2 (40. Qe4 $15) 40... Rc3 $2 (40... Qd4 $19 {aiming for ...Rf2.} 41. a4 Qxb4) 41. Qf4 $2 (41. Qd5 $11 {and White is okay.}) 41... Rxc6 $1 ({Stronger than} 41... Rxa3 42. c7 $11) 42. Qe4 Re6 43. Qd3 $2 {[#]} (43. Qf3) 43... Re2 $1 44. Qd5 $2 (44. Qf3) 44... Re3 45. h4 Rxa3 46. h5 {If only White now had time for hxg6....} Qc3 47. Qg5 Qe3 48. Qg4 g5 {Played: Qe3-h6} 0-1

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.21"]
[Round "4.3"]
[White "Gabuzyan, Hovhannes"]
[Black "Sevian, Samuel"]
[Result "1/2-1/2"]
[ECO "A20"]
[WhiteElo "2619"]
[BlackElo "2677"]
[Annotator "TA"]
[PlyCount "111"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,111,13,14,1,4,-7,-4,-19,-13,-15,-10,-29,-16,-20,0,-4,-4,0,4,0,6,-26,-25,-31,-23,-33,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-65,-40,-55,-55,-39,-47,-64,-35,-35,-60,-60,-46,-67,0,0,0,-35,0,-3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,35,35,41,35,42,42,42,42,35,42,42,42,42,45,45,45,45,0]} 1. c4 e5 2. a3 Nf6 3. d3 c6 (3... a5 4. Nf3 Nc6 5. b3 d5 6. cxd5 Nxd5 7. Bb2 f6 8. g3 Be6 9. Bg2 Qd7 10. Nbd2 Be7 {½-½ (50) Fedoseev,V (2719)-Jumabayev,R (2602) St Petersburg 2018}) 4. Nf3 Bd6 5. Nc3 Bc7 6. Bg5 {A20: English Opening: 1...e5} h6 7. Bxf6 $146 ({Predecessor:} 7. Bh4 d6 8. e3 Nbd7 9. d4 Qe7 10. Be2 Nf8 {½-½ (72) Motuz,K (2311)-Jurcik,M (2339) Slovakia 2007}) 7... Qxf6 8. g3 {The position is equal.} O-O 9. Bg2 d6 10. O-O Qd8 11. b4 a6 12. Qb3 Be6 13. d4 Nd7 14. d5 cxd5 15. cxd5 Bg4 16. Nd2 f5 17. a4 {[%cal Ba3a4,Ba4a5][%mdl 32]} Bb6 18. Nc4 Nf6 {[%cal Bd7f6,Bf6h7,Bh7g5][%mdl 32]} 19. Nxb6 Qxb6 20. a5 Qd8 21. f3 Bh5 22. Bh3 Nh7 23. Na4 Ng5 24. Bg2 Qe7 25. Nb6 Rae8 26. e4 ({White should play} 26. Rac1 $11) 26... fxe4 $15 27. fxe4 Be2 28. Rxf8+ $1 Rxf8 29. Qe3 Bg4 30. Rf1 Rxf1+ 31. Kxf1 Qf7+ 32. Qf2 Qg6 (32... Qc7 $1 $15 33. Qb2 Qf7+ 34. Qf2 Qe8) 33. Qe3 $11 Qf7+ 34. Qf2 $1 Qe8 35. Qc2 $1 Qf8+ 36. Qf2 $1 Qe8 {[#] ...Qb5+ is the strong threat.} 37. Qc2 $1 Kh7 38. Nc4 Qg6 39. Nd2 Qf7+ 40. Ke1 Bf3 41. Nxf3 Nxf3+ 42. Bxf3 Qxf3 {[%mdl 4096] Endgame KQ-KQ} 43. Qe2 Qc3+ 44. Kf2 Qxb4 45. Qf3 Qd2+ 46. Kg1 Qg5 (46... Kg8 {feels hotter.} 47. Qg4 Qc1+ 48. Kg2 Qd2+ 49. Kh3 Qe3) 47. h4 $1 {[%cal Rh4g5]} Qf6 (47... Qc1+ {is more complex.} 48. Kh2 Qc8 49. h5 Kg8 50. Kg2 Qd7) 48. Qxf6 {White is slightly better.} gxf6 $14 {KP-KP} 49. h5 $1 Kg7 {[#] Strongly threatening ...Kf7.} 50. Kg2 f5 51. exf5 Kf6 52. g4 Kf7 53. Kf3 Kg7 54. Kg3 Kf7 $1 55. Kh4 Kf6 56. Kg3 {Accuracy: White = 85%, Black = 73%.} (56. Kh3 $5 {[%cal Rh3h4]} Kg7 57. Kg3 $11) 1/2-1/2

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.22"]
[Round "5.1"]
[White "Fridman, Daniel"]
[Black "Gabuzyan, Hovhannes"]
[Result "1/2-1/2"]
[ECO "E62"]
[WhiteElo "2644"]
[BlackElo "2619"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,63,26,37,48,19,35,16,18,-4,38,46,50,34,41,44,52,51,46,15,42,2,2,2,2,0,52,43,44,35,31,27,31,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. c4 d6 6. Nc3 c6 7. O-O Bf5 8. b3 Ne4 9. Bb2 Nxc3 10. Bxc3 Be4 11. Rc1 Nd7 {E62: King's Indian: Fianchetto: 6...c6 and Panno Variation (6...Nc6) without ...a6} (11... e6 12. e3 d5 13. Re1 Nd7 14. Bf1 Bxf3 15. Qxf3 f5 16. b4 a6 17. Qd1 b5 18. cxd5 cxd5 19. a4 {½-½ (50) Alekseev,E (2632)-Rakhmanov,A (2667) Tallinn 2016}) 12. e3 b5 13. cxb5 $146 ({Predecessor:} 13. Qe2 bxc4 14. bxc4 c5 15. d5 Bxc3 16. Rxc3 Qa5 17. Rb3 Rab8 18. Qb2 Bxf3 19. Bxf3 Rxb3 20. axb3 {½-½ (59) Vrencian,L (2244)-Danilov,V (2389) Calimanesti Caciulata 2016}) 13... cxb5 14. Ne1 Nf6 15. Bxe4 Nxe4 16. Qd3 Nxc3 17. Rxc3 Qa5 18. Qc2 e5 19. Nf3 exd4 20. Nxd4 (20. exd4 {is interesting.} b4 21. Rc6 Qd5 22. Kg2 a5 23. Rc1) 20... Bxd4 21. exd4 Rae8 22. Rc6 Qb4 (22... Re1 $11) 23. Qd3 $14 Re7 24. Kg2 Rfe8 25. Rfc1 Kg7 26. Ra6 {[#] Strongly threatening a3.} Re2 $1 {The position is equal.} 27. Rc3 {a3 is the strong threat.} R8e3 28. Qxe3 Rxe3 29. Rxe3 {And now Rd3 would win.} Qxd4 30. Re7 Qd5+ 31. Kg1 Qd1+ 32. Kg2 {Accuracy: White = 59%, Black = 67%.} 1/2-1/2

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.22"]
[Round "5.2"]
[White "Sevian, Samuel"]
[Black "Kovalenko, Igor"]
[Result "1/2-1/2"]
[ECO "C18"]
[WhiteElo "2677"]
[BlackElo "2651"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,105,12,43,8,32,35,57,10,25,25,24,0,0,0,0,0,0,-43,0,0,7,7,2,0,49,38,58,56,53,23,22,0,0,0,0,0,8,0,0,0,0,0,0,0,0,8,40,40,40,40,55,55,55,55,55,55,55,55,55,55,55,55,55,0,55,55,55,55,55,55,55,55,55,55,55,55,55,55,55,55,55,55,55,55,55,55,58,55,76,55,55,0]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qa5 7. Bd2 Qa4 8. Qg4 g6 9. h4 {C18: French: 3 Nc3 Bb4: Main line: 7 h4 and 7 Qg4} Nc6 10. h5 Qxc2 11. Nf3 (11. hxg6 Qxg6 12. Qxg6 fxg6 13. Bd3 Kf7 14. Nf3 c4 15. Bc2 Bd7 16. Ke2 Kg7 {½-½ (54) Fressinet,L (2645)-Bauer,C (2636) Nimes 2018}) 11... c4 12. hxg6 Qxg6 13. Qf4 Bd7 14. Rh3 $146 ({Predecessor:} 14. Be2 O-O-O 15. Ng5 f6 16. exf6 h6 {1-0 (35) Ronka,E (2260)-Koykka,P (2327) Helsinki 2016}) 14... h6 15. Be2 O-O-O 16. Rg3 Qh7 17. Bd1 Rf8 18. Nh4 {[#] aiming for Ng6!} Nge7 19. Rc1 Nf5 20. Nxf5 exf5 21. Bf3 Be6 22. Qh4 Rfg8 23. Qxh6 Rxg3 24. Qxh7 Rxh7 25. fxg3 Na5 26. Be3 Nb3 27. Rd1 $1 b5 28. Kf2 a5 29. Rf1 Kd7 30. Bd1 Kc6 31. Bc2 $36 {[%mdl 2048] White is pushing.} Rh5 32. Rb1 a4 33. Rd1 Kb6 34. Bf4 Kb7 35. Kf3 Kc6 36. Ke3 Kb6 37. Ke2 Kb7 38. Kf2 Kc6 39. Be3 ({White should play} 39. Rf1 $14) 39... Kb7 (39... Kb6 $1 $11) 40. Kf3 Kc7 41. Kf4 Kd7 42. Rf1 Kc6 43. Kf3 Kb7 44. Kf2 Kc7 45. Kg1 Kc6 46. Rf4 {Hoping for Rh4.} Rg5 47. Kf2 b4 48. cxb4 Kb5 49. Rh4 Rg8 50. Rh1 Rc8 51. Rd1 Rh8 52. Bf4 Rc8 53. Be3 {Accuracy: White = 59%, Black = 80%.} (53. Bb1 $14) 1/2-1/2

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.22"]
[Round "5.3"]
[White "Oparin, Grigoriy"]
[Black "Ganguly, Surya Shekhar"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2644"]
[BlackElo "2642"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,99,22,14,23,8,11,4,6,9,4,0,0,0,27,12,23,5,9,6,19,8,14,23,15,-11,0,-1,25,3,31,33,33,33,33,33,29,37,29,21,38,24,28,27,29,24,17,0,0,0,72,65,93,93,109,61,61,61,64,62,53,21,21,20,36,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 c6 5. O-O Nf6 6. b3 O-O 7. Bb2 a5 8. c4 a4 {D78: Fianchetto Grünfeld: 6 0-0 c6} (8... Ne4 9. Nfd2 Nxd2 10. Nxd2 Be6 11. e4 dxc4 12. Nxc4 Bxc4 13. bxc4 c5 14. e5 cxd4 15. Qxd4 Nc6 16. Bxc6 bxc6 {1-0 (40) Carlsen,M (2853)-Nakamura,H (2787) chess.com INT 2016}) 9. e3 axb3 10. axb3 Rxa1 11. Bxa1 Bf5 $146 ({Predecessor:} 11... Ne4 12. Nc3 f5 13. cxd5 cxd5 14. Ne5 {½-½ (14) Herraiz Hidalgo,H (2485)-Fernandez Garcia,J (2414) Las Palmas 2012}) 12. Nc3 {[%cal Bb1c3,Bc3e2,Be2f4][%mdl 32]} Nbd7 13. h3 Ne4 14. Ne2 Qa5 15. cxd5 cxd5 16. g4 Be6 17. Nf4 Qa2 18. Ne5 Nxe5 19. Nxe6 fxe6 20. Bxe4 $1 Nc6 21. Bd3 Rc8 22. Bc3 Ne5 23. Bb1 Qa3 24. Bd2 Nf7 25. h4 e5 26. dxe5 Nxe5 27. h5 gxh5 28. g5 Ng6 29. Qxh5 {[#] Black must now prevent Kg2.} Qxb3 30. Bxg6 hxg6 31. Qxg6 {White threatens Qe6+ and mate.} d4 (31... Rc6 $1 $11 32. Qf5 e6) 32. exd4 $16 Qh3 33. Qe4 Rf8 34. Rb1 (34. Rc1 {keeps more tension.} Qf5 35. Qxf5 Rxf5 36. Be3 Rd5 37. Rc5) 34... Qf5 $1 {[%cal Rf5e4]} 35. Qxf5 Rxf5 $14 {[%mdl 4096] Endgame KRB-KRB} 36. Be3 Rd5 $1 37. Kg2 {Kf3 is the strong threat.} Bxd4 38. Rd1 e5 39. Bxd4 exd4 {KR-KR. The position is equal.} 40. f4 {Threatens to win with Kf3.} b5 {[%cal Bb7b5,Bb5b4,Bb4b3,Bb3b2][%mdl 32]} 41. Kf3 {[#] aiming for Ke4!} b4 42. Ke4 Rb5 43. Kxd4 b3 $1 44. Kc3 b2 45. Kc2 {Hoping for Kb1.} Rb4 46. f5 {Strongly threatening f6.} Rb5 47. Rd8+ Kf7 48. g6+ Kg7 49. Rd7+ Kg8 50. Rd8+ {Accuracy: White = 53%, Black = 77%.} 1/2-1/2

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.24"]
[Round "6.1"]
[White "Fridman, Daniel"]
[Black "Sevian, Samuel"]
[Result "0-1"]
[ECO "E68"]
[WhiteElo "2644"]
[BlackElo "2677"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,100,58,41,54,56,55,22,80,11,17,0,7,2,42,20,35,36,24,0,0,-29,-4,-16,0,0,0,0,7,-12,-6,-4,0,-16,-14,-12,-18,-32,-8,-17,-21,-43,-5,-216,-216,-502,-502,-498,-483,-527,-527,-518,-521,-507,-509,-509,-504,-514,-314,-311,-325,-348,-317,-352,-353,-357,-297,-289,-251,-251,-229,-229,-229,-356,-354,-296,-265,-265,-265,-420,-406,-358,-236,-229,-227]} 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. c4 d6 6. Nc3 Nbd7 7. O-O e5 8. e4 exd4 9. Nxd4 Nc5 10. f3 Nfd7 {E68: King's Indian: Fianchetto: 6...Nbd7 7 0-0 e5 8 e4} (10... a5 11. b3 Bd7 12. Be3 Re8 13. Qd2 h5 14. Rad1 Qc8 15. Ndb5 Bc6 16. Rfe1 b6 17. Qc2 Bd7 18. a3 Na6 {1-0 (30) Ju,W (2583)-Maze,S (2613) Caleta 2017}) 11. Be3 a5 12. b3 a4 $146 (12... Re8 $11 {remains equal.}) ({Predecessor:} 12... Ne5 13. Qd2 b6 14. Rad1 Bb7 15. Ndb5 Re8 16. Bxc5 bxc5 17. f4 Nc6 18. e5 dxe5 {½-½ (27) Irvin,J (2230)-Silva,F (2150) ICCF email 1997}) 13. Qc2 ({But not} 13. Nxa4 Nxa4 14. bxa4 Nc5 $15) (13. b4 $16) 13... axb3 $11 14. axb3 {[%cal Ba2b3,Bb3b4][%mdl 32]} Rxa1 15. Rxa1 Re8 16. Bf2 c6 17. b4 Na6 18. Rb1 Ne5 19. Na2 c5 20. Nb5 cxb4 21. Nxb4 Nxb4 22. Rxb4 Be6 23. Nd4 Nc6 24. Nxc6 bxc6 25. f4 c5 $36 {[%mdl 2048] Black is more active.} 26. Rb1 Qa5 27. Qb3 Rd8 28. Bf1 Ra8 29. h3 Bd7 30. Qb6 $2 {[#]} (30. Qd3 $11 {and White is okay.}) 30... Qd2 $1 $19 31. Re1 $2 (31. Qb3 {was called for.} Bd4 32. Bxd4 Qxd4+ 33. Kh1) 31... Bd4 32. Re2 Qd3 {...Qxg3+ is the strong threat.} 33. Re3 {[#]} Qd1 $1 {[%mdl 512] ( -> ...Bxh3)} 34. Qb3 {[#]} Qc1 $1 35. Rf3 Bxh3 36. Bxd4 cxd4 37. e5 dxe5 38. fxe5 Bf5 {Played: Bh3-e6} 0-1

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.24"]
[Round "6.2"]
[White "Gabuzyan, Hovhannes"]
[Black "Oparin, Grigoriy"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "2619"]
[BlackElo "2644"]
[Annotator "RC"]
[PlyCount "93"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} e5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:00]} 3. d4 {[%emt 0:00:38]} exd4 {[%emt 0:00:00]} 4. Nxd4 {[%emt 0:00:05]} Bc5 {[%emt 0:00:00]} 5. Nb3 {[%emt 0:00:35]} Bb6 {[%emt 0:00:00]} 6. Nc3 {[%emt 0:00:27]} Nf6 {[%emt 0:00:05]} 7. Qe2 {[%emt 0:02:25]} O-O {[%emt 0:00:24]} 8. Bg5 {[%emt 0:00:42]} h6 {[%emt 0:00:05]} 9. Bh4 {[%emt 0:00:25]} a5 {[%emt 0:00:14]} 10. a4 {[%emt 0:04:48]} Nd4 {[%emt 0:00:35]} 11. Qd3 {[%emt 0:03:19]} Nxb3 {[%emt 0:00:05]} 12. cxb3 {[%emt 0:00:05]} c6 {[%emt 0:00:08]} 13. O-O-O {[%emt 0:00:53]} d5 {[%emt 0:00:09]} 14. exd5 {[%emt 0:00:39]} cxd5 {[%emt 0:00:05]} 15. Qc2 {[%emt 0:00:09]} Be6 {[%emt 0:00:17]} 16. Nxd5 {[%emt 0:00:06]} Bxd5 {[%emt 0:00:09]} 17. Bxf6 {[%emt 0:00:05]} Qxf6 {[%emt 0:00:05]} 18. Rxd5 {[%emt 0:00:03]} Qxf2 {[%emt 0:00:09]} 19. Bc4 {[%emt 0:00:05]} Be3+ {[%emt 0:03:28]} 20. Kb1 {[%emt 0:00:17]} Qxc2+ {[%emt 0:00:06]} 21. Kxc2 {[%emt 0:00:04]} b6 {[%emt 0:00:04]} 22. b4 {[%emt 0:00:02]} axb4 {[%emt 0:01:53]} 23. Kb3 {[%emt 0:00:07]} Rfd8 {[%emt 0:05:52]} 24. Rhd1 {[%emt 0:02:30]} Rxd5 {[%emt 0:00:18]} 25. Rxd5 {[%emt 0:00:03]} Ra7 {[%emt 0:00:07]} 26. Kxb4 {[%emt 0:03:13]} g6 {[%emt 0:01:59]} 27. g4 {[%emt 0:03:33]} Kg7 {[%emt 0:02:52]} 28. b3 {[%emt 0:02:59]} Bf2 {[%emt 0:09:42]} 29. h3 {[%emt 0:01:13]} Kf6 {[%emt 0:02:38]} 30. Rd3 {[%emt 0:06:19]} Ke5 {[%emt 0:13:25]} 31. Kb5 {[%emt 0:02:40]} Ra5+ {[%emt 0:12:12]} 32. Kc6 {[%emt 0:00:22]} f5 {[%emt 0:00:05]} 33. Bb5 {[%emt 0:04:39]} fxg4 {[%emt 0:10:01]} 34. hxg4 {[%emt 0:00:08]} Ra8 {[%emt 0:00:10]} 35. Rd5+ {[%emt 0:10:32]} Kf4 {[%emt 0:00:35]} 36. Rd6 {[%emt 0:02:39]} Kg5 {[%emt 0:11:53]} 37. Be2 {[%emt 0:07:26]} Rf8 {[%emt 0:03:30]} 38. Rd5+ {[%emt 0:00:22]} Kf4 {[%emt 0:00:15]} 39. b4 {[%emt 0:01:10]} Re8 {[%emt 0:01:23]} 40. Bd1 {[%emt 0:00:00]} Re4 {[%emt 0:00:00]} 41. Rd2 {[%emt 0:12:08]} Be3 {[%emt 0:02:03]} 42. Rb2 {[%emt 0:01:21]} Re6+ {[%emt 0:02:48]} 43. Kb7 {[%emt 0:00:40]} Re5 {[%emt 0:02:35]} 44. b5 {[%emt 0:08:16]} h5 {[%emt 0:00:42]} 45. gxh5 {[%emt 0:00:05]} gxh5 {[%emt 0:00:04]} 46. Rh2 {[%emt 0:00:07]} Kg3 {[%emt 0:00:05]} 47. Rxh5 {[%emt 0:00:04]} 1/2-1/2

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.24"]
[Round "6.3"]
[White "Kovalenko, Igor"]
[Black "Ganguly, Surya Shekhar"]
[Result "1-0"]
[ECO "D44"]
[WhiteElo "2651"]
[BlackElo "2642"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,71,0,0,21,-8,-15,-15,-19,-24,-15,-26,-20,-27,-27,-48,-12,-11,-18,-17,0,0,0,-2,0,0,0,-10,0,-2,0,0,0,0,0,-55,98,70,81,81,96,91,89,80,195,181,179,155,146,97,117,108,496,496,489,489,489,489,486,482]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 dxc4 6. e4 b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 7. a4 b4 8. Nb1 Be7 {D44: Semi-Slav: Botvinnik System} (8... Ba6 9. e5 h6 10. Bxf6 gxf6 11. exf6 c5 12. Nbd2 c3 13. bxc3 bxc3 14. Ne4 cxd4 15. Bb5+ Bxb5 16. axb5 {1-0 (36) Dubov,D (2690)-Giri,A (2787) Moscow 2019}) 9. Bxf6 (9. e5 $5 {[%cal Re5f6]} Nd5 10. Bxe7 Qxe7 11. Bxc4 $14) 9... Bxf6 10. Bxc4 O-O $146 {The position is equal.} ({Predecessor:} 10... Bb7 11. O-O O-O 12. a5 c5 13. d5 exd5 14. a6 Nxa6 15. Bxa6 Bxa6 16. Rxa6 dxe4 17. Qxd8 Rfxd8 {½-½ (48) Farago,I (2525)-Raicevic,M (2375) Balatonbereny 1984}) 11. a5 Qc7 12. e5 Be7 13. Nbd2 c5 14. d5 exd5 15. Bxd5 Nc6 16. O-O Rb8 17. Re1 b3 18. Qb1 ({Don't play} 18. Nxb3 Rd8 $17) 18... Be6 19. Bxe6 fxe6 20. Qd3 Nxa5 21. Ra4 Rb4 22. Rxb4 cxb4 23. Ra1 {Black must now prevent Qa6.} Qb6 24. Qd7 (24. Qe4 $11) 24... Bd8 $2 (24... Bc5 $15) 25. h3 Qc6 26. Qxa7 h6 27. Qd4 $36 {[%mdl 2048] Black is under strong pressure.} Qc2 28. Ne1 Qf5 {[#]} (28... Qc6 $16) 29. Ndf3 $1 $18 Qf4 30. Qd6 Qc4 31. Rd1 Nc6 32. Qd2 Be7 $2 {[%mdl 8192] [#]} (32... Bg5 $16 {is more resistant.} 33. Nxg5 hxg5) 33. Rc1 $1 {[%cal Rc1c4] White is clearly winning.} Qe4 34. Qd7 $1 {[%csl LRc6,LRe6][%mdl 64] Double Attack} Nxe5 35. Qxe6+ ({But not} 35. Qxe7 Ng6 $18) 35... Kh7 {[%cal Re5f3]} 36. Qxe5 {Accuracy: White = 72%, Black = 52%.} ({Don't do} 36. Nxe5 Bg5 $18) 1-0

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.25"]
[Round "7.1"]
[White "Kovalenko, Igor"]
[Black "Fridman, Daniel"]
[Result "1/2-1/2"]
[ECO "D31"]
[WhiteElo "2651"]
[BlackElo "2644"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,108,0,11,0,0,0,13,11,10,0,0,-4,-19,-11,81,91,87,97,445,443,643,633,621,610,522,279,252,294,304,296,275,304,297,297,295,-5,291,293,262,95,432,49,109,36,39,8,12,-17,-22,-38,-18,-89,-61,-110,-31,-111,-79,-121,-8,-8,-8,-19,0,0,0,0,0,0,0,0,0,0,0,0,0,4,5,0,0,0,0,0,0,0,0,0,0]} 1. c4 e6 2. Nc3 d5 3. d4 Be7 4. Nf3 Nf6 5. e3 O-O 6. b3 c5 7. Bd3 cxd4 8. exd4 Nc6 9. O-O b6 10. Re1 Bb7 11. Bb2 Rc8 12. Rc1 Re8 13. a3 {E14: Queen's Indian: Classical Variation (4 e3)} (13. cxd5 Nxd5 14. Nxd5 exd5 15. Bf5 Rc7 16. Ne5 Nxe5 17. Rxc7 Qxc7 18. dxe5 Bc5 19. Qg4 a5 20. e6 d4 21. Bxh7+ Kf8 22. Bf5 Qc6 23. Qh3 fxe6 24. Bg6 Rd8 25. Bc1 {1-0 (25) Georgiev,V (2574)-Petkov,V (2517) Albena 2011}) 13... Bf8 14. cxd5 Nxd5 15. Nxd5 Qxd5 16. Be4 Qh5 17. b4 a5 $146 ({Predecessor:} 17... Ba8 18. Qa4 b5 19. Qa6 Nb8 20. Qxa7 Rxc1 21. Bxc1 Bxe4 22. Rxe4 {0-1 (40) Payen,A (2405)-Scavo,F (2255) Pardubice 1998}) 18. bxa5 Qxa5 (18... Nxa5 $11 19. Bxb7 Nxb7) 19. d5 $36 {[%mdl 2048] Keeping Black busy.} exd5 20. Bc3 $1 ({Much weaker is} 20. Qxd5 $6 Qxd5 21. Bxd5 Na5 $11) (20. Bxd5 $2 Rxe1+ 21. Nxe1 Rd8 $19) 20... Qxa3 $2 {[%mdl 8192] [#]} (20... Qb5 $16 {is more resistant.} 21. Bd3 (21. Qxd5 Qxd5 22. Bxd5 Bxa3 $15) 21... Rxe1+ 22. Nxe1 Qc5) 21. Bxh7+ $1 $18 {[%mdl 512]} Kxh7 (21... Kh8 $142) 22. Qd3+ Re4 23. Ng5+ {[%mdl 64] Double Attack, Pin} Kh6 24. Nxe4 dxe4 25. Qxe4 Rd8 26. Qf5 {aiming for g4.} Ne7 27. Qxf7 Kh7 28. Bf6 Bd5 29. Qh5+ Kg8 30. Qg5 $1 Kf7 31. Be5 $2 ({Don't play} 31. Bxe7 $6 Bxe7 32. Rc7 Be6 $18) (31. Rxe7+ $1 $18 {is the precise move to win.} Bxe7 32. Qxg7+ Ke8 33. Re1 $1 {[%mdl 512]}) 31... Rd7 $2 {[%mdl 8192]} (31... Qd3 $16) 32. Rc3 $2 (32. Qh5+ $1 $18 Kg8 33. Bxg7 $1 {[%mdl 512]} Bxg7 34. Qe8+ {[%mdl 64] Double Attack} Bf8 35. Qxd7) 32... Qb4 {[#]} (32... Qa5 $1 $14) 33. h4 (33. Rce3 $1 $16) 33... Kg8 $14 34. Rce3 {[%mdl 1024] And now Bf6 would win. White has compensation.} (34. h5 $5 {[%cal Rh5h6]} Bf7 35. h6 $14) 34... Bf7 $1 35. h5 {White wants to play Ra1.} Rd5 36. Re4 Qd2 37. Qh4 (37. Qg4 $11) 37... Nf5 38. Qh3 Qg5 (38... Nd6 $17 39. Bf4 Qa5 40. Bxd6 Rxd6) 39. g4 (39. Bf4 $1 $15 Qxh5 40. Qxh5 Bxh5 41. Bc7) 39... Nh6 {Hoping for ...Bc5.} 40. Bd4 {[#]} Bc5 (40... Qd8 $1 $17 41. Be3 Rd3 42. Bxb6 Qd7) 41. Bxc5 $11 {The position is equal.} bxc5 42. Qg3 Rd4 43. f3 {Re5 is the strong threat.} Rxe4 44. Rxe4 Bxh5 45. Re5 Qc1+ 46. Re1 Qg5 47. Qb8+ Kh7 48. Qe5 Qxe5 49. Rxe5 Bf7 50. Rxc5 Be6 51. g5 Nf7 52. Kf2 g6 53. f4 Kg7 54. Ke3 Bh3 {Accuracy: White = 46%, Black = 47%.} 1/2-1/2

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.25"]
[Round "7.2"]
[White "Ganguly, Surya Shekhar"]
[Black "Gabuzyan, Hovhannes"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2642"]
[BlackElo "2619"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,80,26,12,8,24,74,37,42,48,66,68,70,60,91,85,112,114,141,137,141,135,133,127,123,137,133,91,94,89,100,84,105,0,104,50,57,40,37,22,25,-44,-37,-50,-55,-347,-340,-328,-300,-431,-368,-427,-408,-445,-417,-482,-482,-488,-475,-528,-517,-521,-513,-484,-443]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nf3 Qc7 8. a4 Be7 9. Be2 O-O 10. O-O Nbd7 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5} (10... h6 11. a5 Be6 12. Nd5 Nxd5 13. exd5 Bf5 14. c4 Nd7 15. b4 Rac8 16. Rc1 Bh7 17. Nd2 f5 18. f3 Bg5 19. Qb3 Kh8 {½-½ (41) Anand,V (2773)-Korobov,A (2698) St Petersburg 2018}) 11. Nd2 b6 12. Bc4 Bb7 {White is slightly better.} 13. Qe2 h6 14. Rfd1 Rfc8 15. f3 Nc5 {[#]} 16. Kh1 $146 ({Predecessor:} 16. Bf2 Ne6 17. Ba2 Nf4 18. Qc4 {1-0 (49) Ponkratov,P (2598)-Kiselev,P (2179) St Petersburg 2012}) 16... Qd8 17. Ba2 Ncd7 18. Nc4 Rc6 19. Bb3 Rb8 20. Rd2 Bc8 {With the idea ...b5.} 21. Rad1 Qf8 22. Qf2 Nc5 23. Bxc5 bxc5 24. Na5 Rcb6 25. Nc4 Rc6 26. a5 (26. Qe2 $16) 26... Be6 $14 27. Ba4 Rc7 28. Qf1 ({Much weaker is} 28. Nxd6 Rxb2 29. g4 c4 $15) 28... Rb4 29. Nxd6 (29. Bb3 $11) 29... c4 $15 30. f4 Ng4 $36 {[%mdl 2048] Threatens to win with ...Ne3. White is under pressure.} 31. f5 $2 {[%mdl 8192]} ({Better is} 31. Qf3 $15 exf4 32. Nf5) 31... Ne3 $19 {[%mdl 64] Double Attack} 32. Qf3 Nxd1 33. Qxd1 {[#]} (33. Rxd1 $142 Bxd6 34. fxe6 fxe6 35. Qg4) 33... Bg5 $1 34. fxe6 Bxd2 35. Qxd2 fxe6 {[%cal Rf8f1]} 36. h3 {[#]} Rxb2 {Played: Rb4xa4} 0-1

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.25"]
[Round "7.3"]
[White "Oparin, Grigoriy"]
[Black "Sevian, Samuel"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2644"]
[BlackElo "2677"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,107,18,22,21,17,24,19,17,25,17,14,17,23,20,26,21,41,32,37,32,41,36,45,44,41,41,79,72,58,77,72,60,70,63,70,70,65,61,139,131,217,215,293,221,290,206,254,250,271,247,259,259,228,231,401,391,413,413,413,413,413,413,413,404,1554,1536,2980,1385,2376,1368,1307,1283,6115,5341,29975,29976,29975,29976,29976,29977,29977,29978,29978,29979,29979,29980,29987,29988,29988,29989,29989,29990,29990,29991]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 c5 4. O-O Nc6 5. d4 e6 6. b3 cxd4 7. Nxd4 Be7 8. Bb2 O-O 9. c4 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} Bd7 10. cxd5 Nxd5 11. Na3 {The position is equal.} Nxd4 12. Qxd4 {[%csl Gb2][%cal Rd4g7]} Bf6 13. Qd2 Bc6 14. Nc4 Bxb2 15. Qxb2 Nb6 (15... b5 16. Ne5 Bb7 17. a4 bxa4 18. Rfd1 {0-1 (77) Nakamura,H (2777)-Karjakin,S (2773) Saint Louis 2018}) 16. Bxc6 Nxc4 17. Qc3 {[#]} Nd6 $146 {White must now prevent ...Rc8.} ({Predecessor:} 17... Na5 18. Bf3 {½-½ (69) Melkumyan,H (2632)-Lenic,L (2625) Austria 2016}) 18. Bf3 Qb6 19. Rfd1 Rfd8 20. Qe5 Rac8 21. Rd3 $36 {[%mdl 2048] Keeping Black busy.} Ne8 22. Rad1 Rxd3 23. Rxd3 Qc7 24. Qb5 Nd6 25. Qb4 $1 Rd8 26. Bxb7 a5 ({Not} 26... Nxb7 $2 27. Qxb7 $1 {[%mdl 512]} Qc1+ 28. Kg2 $1 $18 {[%mdl 512]}) ({Better is} 26... Qb8 $1 $14) 27. Qf4 $16 Qb6 ({Don't go for} 27... e5 $2 28. Qxe5 Qxb7 29. Rxd6) (27... Qxb7 $16 28. Rxd6 Qe7) 28. Bf3 $18 Nb5 29. Rxd8+ Qxd8 30. Qc4 Nd6 31. Qc5 g6 32. a4 Nf5 {[#]} 33. b4 $1 axb4 34. Qxb4 Qd1+ $2 (34... Qd4 35. Qxd4 Nxd4) 35. Kg2 Nd4 {Now ...Nc2 and Black clings on.} 36. Qb8+ Kg7 37. Qe5+ Kg8 38. a5 Nc2 {intending ...Ne1+.} 39. h4 {Hoping for a6.} Ne1+ {[#]} (39... Qd4 $142 40. Qb8+ Kg7) 40. Kh2 $1 Nxf3+ 41. exf3 Qxf3 {[%mdl 4096] Endgame KQ-KQ} 42. Qb8+ Kg7 43. Qb2+ Kh6 44. a6 e5 45. a7 {White mates.} f5 46. Qa2 Qa8 47. Qa5 f4 48. gxf4 exf4 49. Qg5+ Kg7 50. Qe5+ Kh6 51. Qb8 Qf3 52. a8=Q Qxf2+ 53. Qg2 Qxh4+ 54. Qh3 {Accuracy: White = 98%, Black = 42%.} 1-0

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.26"]
[Round "8.1"]
[White "Fridman, Daniel"]
[Black "Oparin, Grigoriy"]
[Result "1/2-1/2"]
[ECO "D31"]
[WhiteElo "2644"]
[BlackElo "2644"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,60,-21,6,20,24,28,12,14,22,31,23,20,13,14,26,19,21,10,15,11,31,7,13,-2,0,0,0,0,0,0,0,-3,0,-7,0,0,0,0,0,0,0,0,0,2,2,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. g3 Nbd7 (5... O-O 6. Bg2 dxc4 7. Ne5 c5 8. dxc5 Qxd1+ 9. Nxd1 Bxc5 10. Bd2 Nc6 11. Nxc4 Bd7 12. Nc3 Nd4 13. O-O Bc6 14. Be3 Bxg2 15. Kxg2 Rfc8 16. Rad1 Nf5 17. Bxc5 Rxc5 {½-½ (31) Rapport,R (2726)-Jakovenko,D (2719) Shenzhen 2019}) 6. Bg2 {E01: Catalan: Early deviations} dxc4 7. Nd2 Nb6 8. Nxc4 O-O 9. Ne5 c5 10. dxc5 {[#] Qxd8 is the strong threat.} Qxd1+ 11. Nxd1 Bxc5 12. Nd3 Be7 13. Nc3 {[#]} Rd8 $146 ({Predecessor:} 13... Nfd5 14. Bd2 Rd8 15. Rc1 Nxc3 16. Bxc3 Nd5 17. Bd2 Bd7 18. Nf4 {½-½ (18) Pashikian,A (2608)-Martirosyan,H (2572) Yerevan 2018}) 14. O-O Nbd5 15. Bd2 b6 {The position is equal.} 16. Nf4 Bb7 17. Nfxd5 Nxd5 18. Nxd5 Bxd5 19. Bc3 f6 20. Rfd1 Bxg2 21. Kxg2 Kf7 22. f4 Rxd1 23. Rxd1 Rd8 24. Rxd8 (24. Rc1 {is more complex.} Rc8 25. Kf3 b5 26. Bd2 Rxc1 27. Bxc1 g6 28. Be3) 24... Bxd8 $11 {[%mdl 4096] Endgame KB-KB} 25. Kf3 Ke7 26. Ke4 g6 27. a4 Kd6 28. Kd4 a6 29. e4 b5 30. axb5 axb5 {Accuracy: White = 70%, Black = 75%.} 1/2-1/2

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.26"]
[Round "8.2"]
[White "Sevian, Samuel"]
[Black "Ganguly, Surya Shekhar"]
[Result "1-0"]
[ECO "C17"]
[WhiteElo "2677"]
[BlackElo "2642"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,75,-11,-12,45,-15,50,-2,11,-37,0,7,58,57,76,66,52,50,65,47,51,34,131,70,72,78,62,56,55,68,60,60,62,69,77,81,55,16,15,14,26,0,262,253,260,258,301,311,317,317,889,273,460,466,450,428,1449,414,921,1394,896,1190,945,870,29971,29972,29964,12033]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. Qg4 Ne7 6. dxc5 ({Don't play} 6. Qxg7 Rg8 $17) 6... Bxc5 {C17: French: 3 Nc3 Bb4 4 e5 c5 sidelines} (6... Nbc6 $11) 7. Bd3 (7. Qxg7 $14 Ng6 8. Nb5) 7... Qb6 $146 ({Better is} 7... Ng6 $11) ({Predecessor:} 7... Bd7 8. Nf3 Qb6 9. O-O Qb4 10. Qg3 h5 11. h3 g6 12. a3 Qb6 13. b4 Bd4 14. Nxd4 Qxd4 {1-0 (41) Grabarczyk,B (2441)-Lenhardt,M (2187) Griesheim 2007}) 8. Nh3 ({White should play} 8. Nf3 $14) 8... Nd7 $11 {The position is equal.} 9. f4 g6 (9... Bb4 $5 {[%cal Rd5d4]} 10. Ke2 (10. Qxg7 Rg8 $17) 10... g6 $11) 10. Bd2 Be3 (10... a6 $11) 11. O-O-O $14 Bxd2+ 12. Rxd2 Nc5 13. Qh4 h6 14. g4 Bd7 15. Ng5 Qb4 {[#]} (15... Qd8 $14) 16. Nxf7 ({White should try} 16. Rf1 $1 $16) 16... Nxd3+ 17. cxd3 Kxf7 18. Qf6+ Kg8 19. a3 Qd4 {Strongly threatening ...Rh7.} 20. Qxe7 Rh7 21. Qb4 $1 {[%cal Rb4d4]} Qe3 {White must now prevent ...Rc8.} 22. Nd1 Qf3 23. Rg1 {Threatens to win with f5.} Rf7 24. f5 $36 {[%mdl 2048] Black is under pressure.} exf5 25. Qd4 {Rf2 is the strong threat.} Be6 $2 {[%mdl 8192]} ({Reject} 25... fxg4 $6 26. Rf2 $16) (25... Rc8+ $11 {and Black stays safe.} 26. Kb1 f4) 26. Rf2 $18 Qh3 {[#]} 27. gxf5 $1 Bxf5 28. Ne3 Rc8+ 29. Kd2 Rcf8 $2 (29... Be6 30. Rxg6+ Kh7 31. Rxf7+ Bxf7) 30. Nxf5 $2 (30. e6 Bxe6 31. Rxg6+ Kh7 32. Rfg2 Qxg2+ 33. Rxg2) 30... Rxf5 $2 (30... Kh7 31. Qxd5 Rxf5 32. Qd7+ (32. Qxb7+ Kh8 $16) 32... R8f7 33. Qxf7+ Rxf7 34. Rxf7+ Kg8) 31. Rxg6+ Kh7 32. Rfg2 Rf4 (32... Rg5 $142 33. R6xg5 hxg5 34. Qxd5 Qf5 35. Qxb7+ Rf7) 33. Rg7+ Kh8 {[#]} 34. Qxf4 $1 {[%cal Rf4f8][%mdl 512]} Qxg2+ (34... Rxf4 35. Rg8+) 35. Rxg2 {[%cal Rf4h6]} Rxf4 36. Ke3 Rh4 37. e6 d4+ 38. Kd2 {Accuracy: White = 63%, Black = 47%.} 1-0

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.26"]
[Round "8.3"]
[White "Gabuzyan, Hovhannes"]
[Black "Kovalenko, Igor"]
[Result "0-1"]
[ECO "A20"]
[WhiteElo "2619"]
[BlackElo "2651"]
[Annotator "RC"]
[PlyCount "158"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. c4 {[%emt 0:00:00]} e5 {[%emt 0:00:22]} 2. a3 {[%emt 0:00:56]} c6 {[%emt 0:06:17]} 3. Nf3 {[%emt 0:00:14]} e4 {[%emt 0:01:29]} 4. Nd4 {[%emt 0:00:04]} Bc5 {[%emt 0:00:47]} 5. Nb3 {[%emt 0:00:04]} Bb6 {[%emt 0:00:02]} 6. c5 {[%emt 0:00:06]} Bc7 {[%emt 0:00:02]} 7. Nc3 {[%emt 0:00:04]} Nf6 {[%emt 0:00:02]} 8. Qc2 {[%emt 0:00:05]} Qe7 {[%emt 0:01:53]} 9. g4 {[%emt 0:00:04]} h6 {[%emt 0:04:17]} 10. Bg2 {[%emt 0:01:51]} O-O {[%emt 0:00:26]} 11. h4 {[%emt 0:05:15]} Nxg4 {[%emt 0:02:18]} 12. Qxe4 {[%emt 0:01:47]} Qxe4 {[%emt 0:30:27]} 13. Nxe4 {[%emt 0:00:28]} b6 {[%emt 0:00:03]} 14. d4 {[%emt 0:02:19]} bxc5 {[%emt 0:00:57]} 15. Nbxc5 {[%emt 0:03:26]} d5 {[%emt 0:02:06]} 16. Nc3 {[%emt 0:02:38]} Nd7 {[%emt 0:00:22]} 17. Nxd7 {[%emt 0:00:59]} Bxd7 {[%emt 0:00:03]} 18. Na4 {[%emt 0:01:10]} Nf6 {[%emt 0:00:44]} 19. Bd2 {[%emt 0:07:16]} Rfe8 {[%emt 0:01:50]} 20. Rc1 Bb6 21. Nxb6 {[%emt 0:03:44]} axb6 {[%emt 0:11:15]} 22. f3 {[%emt 0:00:18]} Ra4 {[%emt 0:00:15]} 23. Bb4 {[%emt 0:00:46]} Nh5 {[%emt 0:02:02]} 24. Kf2 {[%emt 0:00:05]} f5 {[%emt 0:00:58]} 25. e3 {[%emt 0:03:39]} Re6 {[%emt 0:06:33]} 26. Bh3 {[%emt 0:06:47]} g6 {[%emt 0:00:09]} 27. Rc3 {[%emt 0:00:31]} Kf7 {[%emt 0:00:09]} 28. Rb3 {[%emt 0:00:12]} Ra6 {[%emt 0:06:23]} 29. Ra1 {[%emt 0:03:57]} Ra4 {[%emt 0:01:04]} 30. Bc3 {[%emt 0:03:08]} b5 {[%emt 0:01:48]} 31. Bb4 {[%emt 0:00:05]} Nf6 {[%emt 0:01:08]} 32. Rc3 {[%emt 0:00:34]} Ra8 {[%emt 0:01:33]} 33. Bc5 {[%emt 0:02:53]} Ree8 {[%emt 0:06:08]} 34. b3 {[%emt 0:12:09]} g5 {[%emt 0:00:04]} 35. a4 {[%emt 0:00:43]} g4 {[%emt 0:00:11]} 36. Bg2 {[%emt 0:00:10]} Kg6 {[%emt 0:10:12]} 37. a5 {[%emt 0:03:14]} Re6 {[%emt 0:00:49]} 38. Bb6 {[%emt 0:02:09]} Kh5 {[%emt 0:00:39]} 39. Bc7 {[%emt 0:01:22]} b4 {[%emt 0:03:00]} 40. Rcc1 {[%emt 0:00:00]} gxf3 {[%emt 0:00:00]} 41. Bxf3+ {[%emt 0:03:05]} Ng4+ {[%emt 0:00:08]} 42. Bxg4+ {[%emt 0:00:10]} fxg4 {[%emt 0:00:06]} 43. a6 {[%emt 0:00:24]} Rf6+ {[%emt 0:02:15]} 44. Ke2 {[%emt 0:11:06]} Rg6 {[%emt 0:05:41]} 45. Bg3 {[%emt 0:07:32]} Ra7 {[%emt 0:02:38]} 46. Bb8 {[%emt 0:02:45]} Ra8 {[%emt 0:00:03]} 47. a7 {[%emt 0:05:34]} g3 {[%emt 0:00:47]} 48. e4 {[%emt 0:02:34]} Kxh4 {[%emt 0:05:42]} 49. exd5 {[%emt 0:06:00]} cxd5 {[%emt 0:00:11]} 50. Rc5 {[%emt 0:01:35]} Bg4+ {[%emt 0:01:17]} 51. Ke3 {[%emt 0:00:23]} g2 {[%emt 0:05:42]} 52. Rg1 {[%emt 0:04:19]} Kh3 {[%emt 0:01:38]} 53. Rxd5 {[%emt 0:03:59]} Rf6 {[%emt 0:00:37]} 54. Rc5 {[%emt 0:02:06]} Rf3+ {[%emt 0:00:38]} 55. Kd2 {[%emt 0:03:00]} Rf8 {[%emt 0:00:26]} 56. Rcc1 {[%emt 0:04:47]} Rfxb8 {[%emt 0:00:11]} 57. axb8=Q {[%emt 0:00:07]} Rxb8 {[%emt 0:00:02]} 58. Rh1+ {[%emt 0:00:05]} gxh1=Q {[%emt 0:01:28]} 59. Rxh1+ {[%emt 0:00:04]} Kg3 {[%emt 0:00:06]} 60. Rxh6 {[%emt 0:00:01]} Bf5 {[%emt 0:00:50]} 61. Rh5 {[%emt 0:02:59]} Kf4 {[%emt 0:01:03]} 62. Rh4+ {[%emt 0:00:02]} Kg5 {[%emt 0:00:20]} 63. Rh1 {[%emt 0:00:24]} Rc8 {[%emt 0:01:15]} 64. Rg1+ {[%emt 0:01:10]} Kf4 {[%emt 0:00:16]} 65. Rf1+ {[%emt 0:00:03]} Ke4 {[%emt 0:00:10]} 66. d5 {[%emt 0:00:02]} Rd8 {[%emt 0:00:13]} 67. Kc2 {[%emt 0:00:07]} Rxd5 {[%emt 0:00:10]} 68. Re1+ {[%emt 0:00:10]} Kd4+ {[%emt 0:00:48]} 69. Kb2 {[%emt 0:00:06]} Re5 {[%emt 0:00:08]} 70. Rf1 {[%emt 0:02:39]} Re2+ {[%emt 0:00:05]} 71. Ka1 {[%emt 0:00:04]} Bc2 {[%emt 0:00:31]} 72. Rf3 {[%emt 0:00:05]} Re3 {[%emt 0:00:31]} 73. Rf8 {[%emt 0:02:25]} Bxb3 {[%emt 0:00:07]} 74. Kb2 {[%emt 0:00:14]} Bd5 {[%emt 0:00:21]} 75. Rf4+ {[%emt 0:00:05]} Re4 {[%emt 0:00:03]} 76. Rf2 {[%emt 0:00:05]} Bc4 {[%emt 0:00:02]} 77. Rd2+ {[%emt 0:00:04]} Kc5 {[%emt 0:00:02]} 78. Rd8 {[%emt 0:00:05]} Re2+ {[%emt 0:00:03]} 79. Ka1 {[%emt 0:00:06]} b3 {[%emt 0:00:09]} 0-1

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.27"]
[Round "9.1"]
[White "Gabuzyan, Hovhannes"]
[Black "Fridman, Daniel"]
[Result "0-1"]
[ECO "D45"]
[WhiteElo "2619"]
[BlackElo "2644"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,100,-11,-5,-29,-29,-26,-26,-26,-28,-104,-83,-63,-75,-152,148,162,159,154,142,147,146,122,123,106,97,89,87,78,72,0,105,102,157,106,99,85,84,0,0,-390,-387,-381,-370,-381,-378,-368,-381,-369,-324,-317,-347,-349,-372,-349,-347,-515,-467,-441,-463,-686,-686,-674,-35,-72,0,-674,-674,-640,-618,-5601,-5502,-1636,-491,-2797,-1996,-1873,-1836,-29988,-29989,-29989,-29990,-29990,-29991]} 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. Nf3 c6 5. e3 a6 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 c5 9. a4 b4 10. Ne4 Nbd7 11. b3 {D48: Semi-Slav: Meran System: 7...b5 8 Bd3 a6} (11. O-O Bb7 12. Nxf6+ Nxf6 13. Qe2 cxd4 14. Rd1 Bd6 15. exd4 O-O 16. Bg5 Be7 17. Rac1 Qa5 18. Ne5 h6 19. Bxf6 Bxf6 20. Nd7 Qd5 21. Nxf6+ gxf6 {½-½ (30) Kunin,V (2557)-Van Foreest,J (2624) Netherlands 2018}) 11... cxd4 12. Nxd4 Bb7 13. Nxf6+ $1 {[#] Black has an edge.} Qxf6 $146 ({Predecessor:} 13... Nxf6 14. O-O {½-½ (14) Molner,M (2459)-Sevillano,E (2514) Los Angeles 2013}) 14. Bb2 (14. O-O $1 $11 {keeps the balance.}) 14... Bxg2 15. Rg1 Bb7 16. Qe2 {[#]} (16. Rc1 $142) 16... Nc5 $2 {[#]} (16... e5 $1 $17 {[%cal Re5d4]} 17. Nf5 g6) 17. Bb5+ $1 $16 {[%mdl 512]} axb5 18. Qxb5+ {[%mdl 64] Double Attack} Nd7 19. Qxb7 Rb8 20. Qc7 {Threatens to win with Nc6!} Qd8 21. Qc6 Rc8 22. Qb5 {aiming for a5.} Rc5 23. Qb7 Rc7 24. Qb5 Rc5 25. Qa6 Ra5 {[#]} (25... Nb8 $142 26. Qb7 Qc7) 26. Qe2 (26. Qd3 $142 $1 {Black must now prevent Nc6.} Rd5 27. e4) 26... Rc5 27. Rd1 Qc8 28. Nb5 (28. f3 $16) 28... Rc2 $36 {[%mdl 2048] Black is more active.} 29. Rd2 $2 {[%mdl 8192] [#]} (29. Qh5 $11 {and White stays safe.} g6 30. Rxg6 hxg6 31. Qxh8) 29... Rxb2 $1 $19 {[%mdl 576] Remove Defender} 30. Rxb2 {And now Rc2 would win.} Qc1+ 31. Qd1 Qxb2 32. Rg4 {intending Rd4.} Bc5 33. Rc4 Qe5 34. Nd6+ Bxd6 ({Less strong is} 34... Qxd6 35. Qxd6 Bxd6 36. Rc8+ Ke7 37. Rxh8 $17) 35. Rc8+ Ke7 36. Rxh8 Qxh2 37. Qg4 (37. Qf3 $142) 37... Qh1+ 38. Ke2 Qd5 39. Qxg7 (39. Rc8 $142 Qxb3 40. Qg5+ Nf6 41. Qxg7 Qa2+ 42. Kf1) 39... Qh5+ 40. Ke1 Qh1+ $2 (40... Be5 $19 41. Rxh7 Qf5) 41. Ke2 $15 Qh5+ $2 {[%mdl 8192]} (41... Qd5 $17 42. Rc8 (42. Qg8 Bc7 $19) 42... e5) 42. Ke1 $19 Be5 {[%mdl 64] Skewer} 43. Rxh7 Qf5 ({Inferior is} 43... Bxg7 44. Rxh5 Kd6 45. Kd1 $11) 44. Qh6 Qd3 {[%cal Re5c3]} 45. Qh4+ Ke8 (45... Bf6 $142 46. Qxb4+ Ke8) 46. f4 (46. Rh8+ $142 Bxh8 47. Qxh8+ Nf8 48. Qb2) 46... Qxe3+ {[%mdl 64] Double Attack} 47. Kf1 Qf3+ 48. Kg1 Bd4+ {Black mates.} 49. Kh2 Qe2+ 50. Kh3 Qf1+ {Accuracy: White = 40%, Black = 63%.} 0-1

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.27"]
[Round "9.2"]
[White "Kovalenko, Igor"]
[Black "Sevian, Samuel"]
[Result "1-0"]
[ECO "D38"]
[WhiteElo "2651"]
[BlackElo "2677"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,119,29,22,36,34,31,0,9,20,38,6,38,10,11,8,10,4,19,15,48,48,68,52,54,49,83,86,121,77,83,82,84,77,74,74,73,72,74,76,78,72,68,70,64,64,83,102,113,103,118,88,93,90,191,175,166,160,146,123,146,139,146,140,139,143,173,178,185,184,184,184,274,309,1062,1029,1053,969,29978,29979,29979,29980,29980,29981,29981,29982,29982,29983,29984,29983,29983,29984,29984,29985,29985,29986,29986,29987,29987,29983,29985,29984,29984,29985,29986,29983,29983,29984,29985,471]} 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Nc3 Bb4 5. cxd5 exd5 6. Bg5 O-O 7. e3 Bf5 $146 {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4)} (7... Nbd7 8. Be2 Re8 9. O-O c6 10. Qc2 Nf8 11. Ne5 Ng6 12. f4 h6 13. Nxg6 fxg6 14. Qxg6 Rxe3 15. Bxh6 {0-1 (40) Gozzoli,Y (2630)-Sarana,A (2630) chess.com INT 2019}) 8. Be2 Nbd7 9. O-O (9. Qb3 $5 {[%cal Rb3b4]} Bxc3+ 10. bxc3 $11) 9... c6 {The position is equal.} 10. Qb3 Qa5 11. Nd2 c5 {With the idea ...c4.} 12. a3 Bxc3 $1 13. bxc3 Rac8 14. Ra2 Be6 15. Rd1 $36 {[%mdl 2048] Black is under pressure.} b6 16. a4 h6 17. Bf4 Rfd8 18. f3 cxd4 19. cxd4 Qc3 20. Ba6 Qxb3 21. Nxb3 Rc3 22. Nc1 $1 Bf5 23. Ne2 Rb3 24. g4 Bb1 {[#]} 25. Ra1 $1 Bh7 26. h4 Nf8 27. Nc1 Rc3 28. Kf2 Ne6 29. Bg3 h5 30. g5 Ne8 31. Ne2 Rc2 32. Rdc1 Nd6 (32... Rb2 $16 {was necessary.}) 33. Rxc2 $18 Bxc2 34. Nc3 Nf5 35. Ra3 Nxg3 36. Kxg3 Nc7 37. Bb7 a5 38. Ne2 Ne6 39. Bc6 Kf8 40. Nf4 Nxf4 41. Kxf4 {[%mdl 4096] Endgame KRB-KRB} Ke7 (41... Rd6 {is a better defense.}) 42. Rc3 Rc8 $2 (42... Bg6 43. Bb5 Rd6 44. Rc7+ Kd8) 43. Rxc2 {KRB-KR} Kd6 44. e4 Rxc6 {KR-KR} 45. e5+ {White mates.} Kd7 {[#]} 46. Rxc6 $1 Kxc6 {[#] KP-KP} 47. g6 $1 {[%mdl 512]} fxg6 48. Kg5 Kd7 49. Kxg6 Ke7 50. Kxg7 b5 51. axb5 a4 52. b6 a3 53. b7 a2 54. b8=Q a1=Q 55. Qd6+ Ke8 56. Qe6+ Kd8 57. Qxd5+ Ke7 58. e6 {[%csl Ge6][%cal Rd5d7]} Qg1+ 59. Kh6 Kf6 60. Qe5+ {Accuracy: White = 85%, Black = 41%.} (60. Qg5+ $142 Qxg5+ 61. hxg5+ Kxe6 62. Kxh5 Kf5 63. g6 Kf6 64. d5 Kg7 65. Kg5) 1-0

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.27"]
[Round "9.3"]
[White "Ganguly, Surya Shekhar"]
[Black "Oparin, Grigoriy"]
[Result "1/2-1/2"]
[ECO "C55"]
[WhiteElo "2642"]
[BlackElo "2644"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,104,21,30,26,33,39,38,28,28,10,14,9,12,12,12,5,18,0,0,6,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-21,-15,-29,-17,-95,-76,-60,-69,-57,0,0,0,-53,-52,-185,-91,-95,-32,-98,64,0,0,8,107,96,147,149,142,128,130,28,30,32,28,28,28,23,25,19,35,28,28,28,28,28,28,28,35,10,27,8,8,1,1,1,1]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. a4 d6 7. a5 a6 8. Re1 Be6 9. Nbd2 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack} Nd7 (9... Qd7 10. c3 h6 11. Qb3 Rab8 12. h3 Kh8 13. Nf1 Nh5 14. d4 Bxc4 15. Qxc4 f5 16. dxe5 Nxe5 17. Qe2 Ng6 18. exf5 Rxf5 {½-½ (44) Heberla,B (2558)-Wang,H (2706) Czech Republic 2018}) 10. c3 Bg5 11. Bxe6 {White is slightly better.} fxe6 12. Nc4 $146 ({Predecessor:} 12. Qb3 Nc5 13. Qc4 Bxd2 14. Bxd2 Qe7 15. Bg5 Qf7 16. Be3 {1-0 (33) Domont,A (2418)-Glauser,H (2242) Zuerich 2004}) 12... Bf4 13. d4 Qf6 14. Bxf4 Qxf4 15. Qe2 Rae8 16. Rad1 exd4 17. Nxd4 Nce5 {Black wants to play ...Nxc4.} 18. f3 g5 19. Rf1 Qf6 20. Kh1 Re7 21. Ne3 Qg6 22. b4 Ref7 23. Qa2 Rf6 24. Kg1 Kh8 25. h3 h5 26. Qf2 R8f7 27. Qg3 (27. Qd2 $11) 27... Qh6 $1 $17 28. c4 Ng6 29. c5 $1 Nde5 (29... dxc5 $15 30. bxc5 Nxc5) 30. cxd6 $11 cxd6 31. Rc1 (31. Nxe6 $11 Rxe6 32. Nf5 Rxf5 {[%mdl 64] Remove Defender} 33. exf5) 31... Nf4 $15 32. Kh1 {[#]} (32. Rc8+ $15 Rf8 33. Rxf8+ Rxf8 34. Qe1) 32... g4 $1 {[%mdl 512]} 33. fxg4 $17 hxg4 34. Ndf5 (34. Nxg4 $2 Nh5 $1 $19 {[%mdl 512]}) (34. Kh2 $1 $15) 34... exf5 $2 ({Black should play} 34... Nh5 $1 $17 {[%cal Rh5g3]} 35. Qxe5 exf5) 35. Rxf4 (35. Rc8+ $1 $14 Kg7 36. Rxf4 {[%mdl 64] Double Attack} fxe4 37. Rxg4+ (37. Rxe4 Rf4 $14) 37... Nxg4 38. Qxg4+ {[%mdl 64] Double Attack} Qg6 39. Nf5+ $1 {[%mdl 512]} Rxf5 40. Rg8+ $1 {[%mdl 576] Deflection} Kxg8 41. Qxg6+ Kf8 42. Qh6+ (42. Qxd6+ Re7 $11) 42... Ke7 43. Qh4+ {[%mdl 64] Double Attack} Kd7 44. Qxe4) 35... fxe4 $11 36. Rc8+ Kh7 (36... Rf8 $11 37. Rxf8+ Rxf8 38. Rxf8+ Qxf8) 37. Rxe4 $16 Rf1+ {[#]} (37... Rf4 $142 38. Rxf4 {[%mdl 64] Overworked Piece} Qxf4 39. Qh4+ Kg6 40. hxg4 Qh6 41. Rg8+ Kh7 42. Qxh6+ (42. Rh8+ Kxh8 43. Qxh6+ Rh7 $16) 42... Kxh6) 38. Kh2 $1 ({Much worse is} 38. Nxf1 $6 Rxf1+ 39. Kh2 Nf3+ 40. gxf3 Qd2+ 41. Qg2 Rf2 $11) 38... R1f4 {[#]} 39. Rxf4 $1 Qxf4 40. Qxf4 (40. Nxg4 $16 Qxg3+ 41. Kxg3) 40... Rxf4 {[%mdl 4096] Endgame KRN-KRN} 41. Rc7+ Kg6 42. Rxb7 {Hoping for Nxg4.} gxh3 $1 43. Kxh3 {Nd5 is the strong threat.} Rd4 44. g3 {Threatens to win with Rb6.} Nc6 45. b5 axb5 $1 46. Rxb5 {Black must now prevent a6.} Ra4 47. Rb6 Nxa5 48. Rxd6+ Kf7 49. Nf5 {aiming for Ra6.} Nb7 50. Rd5 Ra5 {The position is equal.} 51. Rd7+ Ke6 52. Rxb7 Kxf5 {Accuracy: White = 47%, Black = 60%.} 1/2-1/2

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.28"]
[Round "10.1"]
[White "Fridman, Daniel"]
[Black "Ganguly, Surya Shekhar"]
[Result "1/2-1/2"]
[ECO "E06"]
[WhiteElo "2644"]
[BlackElo "2642"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,99,0,0,0,0,0,0,13,-1,0,0,0,8,0,0,0,0,0,0,0,0,-5,-6,-2,-6,-12,-5,2,-14,0,-20,-19,-42,0,-15,-15,-31,-32,-35,-31,-31,-15,-15,-15,-15,-15,-15,-15,-12,-15,-10,-3,-5,-5,-6,0,0,0,0,0,0,0,0,0,0,0,-8,0,0,0,0,0,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. g3 Be7 5. Bg2 O-O 6. Nc3 dxc4 7. Ne5 Qd6 {E06: Closed Catalan: Early deviations} (7... c5 8. dxc5 Qxd1+ 9. Nxd1 Bxc5 10. O-O Nd5 11. Ne3 Nc6 12. N3xc4 Nxe5 13. Nxe5 Bd4 14. Nd3 {½-½ (14) Nakamura,H (2761)-Radjabov,T (2759) Moscow 2019}) 8. Nxc4 Qa6 $1 {[%cal Ra6c4]} 9. Qb3 Nc6 10. e3 Rb8 11. Qb5 Qxb5 12. Nxb5 a6 13. Nc3 ({Reject} 13. Nxc7 b5 $15) 13... b5 $146 ({Predecessor:} 13... Bd7 14. Bd2 Rfd8 15. Ne4 Nxe4 16. Bxe4 {1-0 (56) Gordon,S (2544)-Roberson,P (2396) Harrow 2018}) 14. Nd2 Bb7 {Black wants to play ...Nxd4!} 15. O-O Nb4 16. Nb3 Bxg2 17. Kxg2 {[#]} c5 $1 {[%mdl 512]} 18. Nxc5 Bxc5 19. dxc5 Nd3 20. Rb1 Nxc5 21. Rd1 Rfd8 {...b4 is the strong threat.} 22. Bd2 Rd7 23. Be1 Nd3 24. Ne2 e5 25. Kf1 Rc8 26. Nc1 Nxb2 27. Rxd7 {The position is equal.} Nxd7 28. Rxb2 {aiming for Rd2.} Rxc1 $15 {[%mdl 4096] Endgame KRB-KRN} 29. Rd2 Rc7 30. Rd6 Ra7 31. Ba5 f5 32. Bb6 Rb7 33. Ba5 Nb8 34. a3 Kf7 35. Ke2 e4 36. h3 h5 37. f3 exf3+ 38. Kxf3 Re7 39. Kf4 g6 40. Kg5 $1 Rxe3 {[%mdl 64] [#] Double Attack} 41. Rf6+ Ke8 42. Bb4 Nd7 43. Rxg6 a5 44. Bd6 Kf7 45. Rh6 Rf3 46. Bf4 b4 47. axb4 axb4 48. Rh7+ Ke6 49. Rh6+ Kf7 50. Rh7+ {Accuracy: White = 77%, Black = 74%.} 1/2-1/2

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.28"]
[Round "10.2"]
[White "Oparin, Grigoriy"]
[Black "Kovalenko, Igor"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2644"]
[BlackElo "2651"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,89,14,14,17,9,3,16,27,4,3,7,10,0,16,4,4,0,12,0,25,20,19,0,0,-19,13,20,17,16,30,30,20,14,10,21,14,0,4,0,0,0,23,0,0,0,0,-10,19,-19,31,-20,0,-49,0,0,0,0,0,-26,-30,-28,0,0,0,0,0,0,0,0,0,0,2,0,0,-5,0,0,0,0,0,0]} 1. Nf3 d5 2. g3 c6 3. Bg2 Bg4 4. O-O Nd7 5. d3 e6 6. c4 Bc5 {A11: English Opening: 1...c6} (6... Ngf6 7. cxd5 exd5 8. h3 Bxf3 9. Bxf3 Bc5 10. Bg2 O-O 11. Nc3 Re8 12. e4 dxe4 13. dxe4 Ne5 14. Bg5 h6 15. Bxf6 Qxf6 16. Kh2 Qe6 17. Qc2 Rad8 18. b3 {½-½ (68) Adly,A (2626)-Kryakvin,D (2588) St Petersburg 2018}) 7. cxd5 cxd5 8. Nc3 Ne7 9. Qa4 Bxf3 $146 ({Predecessor:} 9... Bh5 10. e4 dxe4 11. Ne5 Bd6 12. Nc4 Bc7 13. dxe4 a6 {1-0 (38) Yarmysty,M (2278)-Zinchenko,Y (2334) Lvov 2004}) 10. Bxf3 Nc6 11. Bd2 O-O 12. Bg2 a6 13. Rfc1 Qe7 14. Rab1 Rfc8 15. Qd1 Nde5 16. Be1 Ba7 17. b4 h5 18. b5 axb5 $1 19. Nxb5 h4 20. d4 Nd7 21. e3 hxg3 22. hxg3 Bb6 23. a4 Ba5 24. Nc3 Nf6 25. Qb3 b6 26. Qd1 Qd8 27. Bf1 Ne7 28. Bd3 g6 29. Kg2 Kg7 30. Bd2 ({Better is} 30. g4 $14) 30... Nf5 $11 31. Ne2 (31. Ra1 {with more complications.} Qe7 32. Nb5 Rxc1 33. Bxc1 Bb4 34. Rb1) 31... Bxd2 32. Rxc8 Qxc8 33. Qxd2 Ng4 34. Bxf5 exf5 35. f3 Qc2 {[%mdl 64] [#] Decoy} (35... Qe6 {keeps more tension.} 36. Nf4 Qxe3 37. Qe2 Qxe2+ 38. Nxe2 Nf6) 36. Qxc2 {The position is equal.} Nxe3+ {[%mdl 64] Double Attack} 37. Kf2 Nxc2 {[%mdl 4096] Endgame KRN-KRN} 38. Rb2 Na3 39. Nc3 Rh8 {[#] White must now prevent ...Rh2+.} 40. Rb3 Nc2 41. Nxd5 Nxd4 42. Rd3 Ne6 43. Nxb6 Rh2+ 44. Ke3 Ra2 45. Rc3 {Accuracy: White = 42%, Black = 67%.} 1/2-1/2

[Event "Summer Chess Classic-B 2019"]
[Site "Saint Louis"]
[Date "2019.06.28"]
[Round "10.3"]
[White "Sevian, Samuel"]
[Black "Gabuzyan, Hovhannes"]
[Result "0-1"]
[ECO "B96"]
[WhiteElo "2677"]
[BlackElo "2619"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2019.06.18"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,99,46,46,43,58,51,40,51,84,76,86,83,86,83,90,85,97,90,90,91,114,93,120,120,140,132,129,125,166,148,160,126,174,156,160,77,84,89,95,31,18,-50,-50,-50,-50,-52,-64,-111,-95,-91,-76,-85,-60,-78,-68,-78,-68,-68,-72,-98,-58,-200,-191,-249,-248,-668,-545,-754,-739,-764,-764,-734,-708,-625,-720,-706,-709,-653,-606,-29970,-29963,-29966,-6552,-29998,-29999,-29999]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qc7 8. Bxf6 gxf6 9. Qf3 {B96: Sicilian Najdorf: 6 Bg5 e6 7 f4, lines other than 7...Qb6 and 7...Be7} (9. Qd3 Nc6 10. Be2 Nxd4 11. Qxd4 Qc5 12. Qd2 Bd7 13. O-O-O O-O-O 14. Kb1 Bc6 15. Bg4 h5 16. Bh3 Bh6 {0-1 (59) Durarbayli,V (2628)-Gabuzyan,H (2620) New York 2019}) 9... Nc6 10. O-O-O Nxd4 11. Rxd4 {White is slightly better.} b5 12. Be2 Bb7 13. f5 $146 {And now fxe6 would win.} ({Predecessor:} 13. Qh3 f5 14. exf5 Bg7 15. Rd3 b4 16. Nd1 e5 17. fxe5 dxe5 {1-0 (28) Llorente Alvarez,J (2086)-Hassan,W (1823) IECC email 2012}) 13... Qc5 14. Rhd1 e5 15. R4d3 Rc8 16. a3 $1 h5 17. Kb1 h4 18. Bf1 Be7 19. Qe2 Kd7 20. Rh3 Bd8 21. Nd5 Qa7 22. Qd2 Ke8 23. Qe1 Rc5 24. Nc3 ({Don't do} 24. Rxh4 $6 Rxh4 25. Qxh4 Bxd5 $16) 24... Ke7 25. Rxh4 (25. Qd2 $142 Qb8 26. g4) 25... Rxh4 $16 26. Qxh4 Ba5 {[#]} 27. Na2 (27. Nd5+ $1 $16 Bxd5 28. exd5) 27... Rc8 $14 {[%cal Bc5c8,Bc8g8,Bg8g4][%mdl 32]} 28. c3 (28. Bd3 $11) 28... Qe3 $15 {[%mdl 1024] Black has compensation.} 29. Bd3 Rg8 30. g3 Qf3 $1 {[%cal Rf3d1]} 31. Bc2 {Rxd6! is the strong threat.} Rg4 {[%mdl 64] Double Attack} 32. Qh6 {Black must now prevent Qd2.} Rxe4 33. Nc1 Rc4 34. Nb3 Bb6 $36 {[%mdl 2048] Black has good play.} 35. Qd2 d5 36. Re1 Qg4 37. Qh6 {aiming for Rxe5+!} Bf2 38. Rf1 (38. Bd1 $1 $15 Qxf5+ 39. Bc2) 38... Qe2 $19 39. Qh3 {[#]} (39. Qc1 $142) 39... d4 $1 {[%cal Rd4c3]} 40. Na5 $2 (40. Nc1 Qe3 41. Nd3) 40... Bd5 (40... d3 41. Bd1 $16) 41. g4 Be3 42. Bd1 {[#]} Qd2 $1 {[%mdl 512]} 43. Nb3 Be4+ 44. Ka2 Qd3 {[%csl Ge4][%cal Rd3b1]} 45. Bf3 {[#]} Rxc3 $1 {[%mdl 512]} 46. Bxe4 (46. bxc3 Qc2+) 46... Qxe4 47. g5 {[#]} Qc2 $1 48. gxf6+ Kd7 49. Na1 {[#]} Rxa3+ $1 {[%mdl 512]} 50. Kxa3 Qa4# {Accuracy: White = 50%, Black = 72%.} 0-1

