[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "3"]
[White "Nyzhnyk, Illya"]
[Black "Schmakel, Sam A"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "2612"]
[BlackElo "2344"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,91,50,42,56,51,54,59,77,47,72,73,80,69,74,75,78,77,75,74,98,103,95,84,99,95,109,104,98,64,67,64,102,106,105,99,110,114,137,137,142,119,140,127,134,125,159,142,166,172,164,154,172,161,168,170,176,169,166,139,377,379,472,481,465,465,727,727,724,703,714,679,2081,1983,29996,1571]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be3 c5 7. h3 cxd4 8. Nxd4 b6 {E90: King's Indian: Classical: Early deviations and 6 h3} 9. g3 Bb7 10. Bg2 {LiveBook: 9 Games} e6 $146 {White is slightly better.} ({Predecessor:} 10... Nbd7 11. O-O Nc5 12. Qc2 Rc8 13. Rfd1 Qd7 14. a4 a5 15. Nd5 Qd8 16. Rd2 {1-0 (50) Matlakov,M (2714)-Kovalev,V (2629) Minsk 2017}) 11. O-O Qe7 12. Qd2 Na6 13. Rfe1 Nc5 {[%cal Rc5e4]} 14. Bg5 e5 15. Nd5 Qd8 16. Nb5 Bxd5 17. cxd5 Qd7 18. Nc3 Ne8 19. b4 Na6 20. Qe2 Nac7 21. h4 f5 {next ...f4 is good for Black.} 22. Bh3 Qf7 23. exf5 gxf5 24. Rad1 e4 25. Qd2 a5 26. b5 $1 a4 27. Bh6 Qf6 28. Bxg7 Nxg7 29. a3 Ra5 30. Rb1 {[%cal Bd1b1,Bb1b4,Bb4c4][%mdl 32]} Nh5 31. Rb4 Rf7 32. Qg5+ ({Don't play} 32. Nxa4 $6 Rg7 $16) 32... Qxg5 33. hxg5 Kg7 {[#]} 34. Reb1 $1 Kg6 {[#]} 35. Rc4 $1 ({Inferior is} 35. Nxa4 Nxd5 36. Rd4 Kxg5 $11) 35... Kxg5 36. Rc6 Nf6 37. Rxd6 Rf8 38. Bf1 f4 $2 (38... Raa8 $16 39. Rxb6 Nfxd5 40. Nxd5 Nxd5) 39. Rd1 $18 e3 40. fxe3 fxe3 41. Rxb6 Kf5 (41... Rd8 $142 42. Rc6 Nce8) 42. d6 {[%cal Bd5d6,Bd6d7][%mdl 32]} Ne6 43. Bh3+ Ke5 44. Bxe6 Ra7 45. d7 {White wants to mate with Bh3.} Rc7 46. Rc6 {Precision: White = 91%, Black = 49%.} (46. Bh3 $142 Rc6 47. Rxc6 Re8 48. dxe8=R+ Nxe8 49. Re6#) 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "3"]
[White "Kolev, Atanas"]
[Black "Feng, Maggie"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2572"]
[BlackElo "2298"]
[Annotator "TA"]
[PlyCount "177"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,177,12,10,10,14,32,12,25,21,31,25,36,25,32,22,40,20,25,17,20,16,21,22,27,15,15,19,16,17,27,0,8,0,0,0,2,2,2,0,0,0,74,7,8,0,12,12,14,12,14,14,49,45,73,12,37,0,43,44,54,0,1,0,4,0,4,4,21,21,21,21,21,21,21,15,21,15,15,15,15,15,15,15,29,15,15,15,29,29,29,29,29,17,29,29,29,29,29,15,15,15,15,15,15,0,15,0,15,0,15,15,15,8,8,0,0,0,0,0,36,36,36,36,36,36,36,36,36,36,36,36,36,36,36,0,36,0,36,0,0,0,29975,29976,29979,29980,29980,29979,29979,29980,29980,29981,29981,29982,29982,29983,29983,29984,29984,29985,29985,29985,29985,29986,29986,29987]} 1. d4 d5 2. Nf3 c5 3. Bf4 Nc6 4. e3 Nf6 5. Be2 e6 6. O-O {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} Bd6 7. Bxd6 Qxd6 8. c4 {LiveBook: 3 Games. The position is equal.} cxd4 9. Nxd4 O-O 10. cxd5 Nxd4 11. Qxd4 Qxd5 12. Qxd5 Nxd5 13. Bf3 Nf6 $146 14. Rc1 e5 15. Na3 e4 16. Be2 Bd7 17. Nc4 Bb5 18. Kf1 Rfd8 19. a4 Bc6 20. Na5 Bd5 21. Ke1 Rac8 22. Nc4 Kf8 23. Na3 a6 24. a5 Bb3 25. Nc4 Bxc4 26. Rxc4 Rxc4 27. Bxc4 $11 {[%mdl 4096] Endgame KRB-KRN} Ng4 (27... Rc8 $11 {keeps the balance.} 28. Ra4 Rc5) 28. Be2 (28. Rd1 $16 Rb8 29. Rd4) 28... Ne5 29. Ra4 f5 30. Rb4 Rd7 31. Rb6 Rc7 32. f3 Nc6 33. b4 Ke7 34. b5 ({White should play} 34. Bc4 $16) 34... Nxa5 35. bxa6 bxa6 36. fxe4 fxe4 37. Rxa6 (37. Rb4 $1 $14) 37... Nb3 38. Bg4 Nc5 39. Rb6 Kf7 40. Kf2 Re7 41. Kg3 Nd3 42. h4 g6 43. Rd6 Re5 44. Be2 Ke7 45. Ra6 (45. Rd4 {is more complex.} Kf6 46. Bxd3 exd3 47. e4 g5 48. h5) 45... Kf7 46. Ra3 h5 47. Bxd3 exd3 48. Rxd3 {KR-KR} g5 49. hxg5 Rxg5+ 50. Kf3 Ke6 51. Rd4 Rf5+ 52. Rf4 Rg5 53. Rf8 Rg4 54. Rh8 {And now Rh6+ would win.} Rg5 55. Rh6+ Kf7 56. e4 Kg7 57. Rd6 {Threatens to win with Rd5.} h4 58. Rd2 Kf6 59. Rd6+ (59. Kf4 $5 {[%cal Rd2d6]} Rg3 60. Ra2 $14) 59... Ke7 60. Rd2 Kf6 61. Ra2 Ke6 62. Kf4 Rg3 63. e5 Rg8 64. Ra6+ Ke7 65. Kf5 {Hoping for Ra7+.} Rxg2 66. Ra7+ Ke8 67. Rh7 Ra2 68. Kf6 Rf2+ 69. Ke6 Kf8 $1 70. Rxh4 Ra2 71. Rh8+ Kg7 72. Rd8 {Strongly threatening Ke7.} Ra5 73. Rd5 (73. Kf5 $5 {[%cal Rd8d7]} Kf7 74. Rd7+ Ke8 75. Rd6 $16) 73... Ra6+ 74. Ke7 {aiming for Rd4.} (74. Rd6 {with more complications.} Ra8 75. Kf5 Kf7 76. Rd7+ Ke8 77. Ke6) 74... Ra7+ 75. Rd7 Ra6 76. e6 (76. Rd4 $5 {[%cal Rd4g4]} Ra7+ 77. Ke8 Ra8+ 78. Rd8 $18) 76... Kg6 77. Rd6 (77. Rd2 $5 {[%cal Rd2g2]} Ra7+ 78. Rd7 $18) 77... Ra7+ $2 {[%mdl 8192] [#]} (77... Ra8 $11) 78. Ke8 $1 {White mates.} Kf6 79. e7+ $1 Kg7 80. Rd1 Ra8+ 81. Kd7 Ra7+ 82. Ke6 Ra6+ {[#]} 83. Rd6 $1 Ra8 84. Rd8 Ra6+ 85. Kd5 Ra5+ 86. Kc4 Ra4+ 87. Kb3 Re4 88. e8=Q Rxe8 89. Rxe8 {Precision: White = 52%, Black = 69%.} 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "3"]
[White "Li, Ruifeng"]
[Black "He, Anthony B"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "2571"]
[BlackElo "2295"]
[Annotator "TA"]
[PlyCount "49"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,49,51,39,32,19,36,72,59,105,126,118,110,95,91,110,90,627,624,814,791,1107,1093,1072,1072,986,934,5564,5564,29995,29996,29996,29997,29998,-530]} 1. b3 e5 2. Bb2 Nc6 3. e3 Nf6 4. Nf3 e4 5. Nd4 Nxd4 6. Bxd4 d5 {A01: Nimzowitsch-Larsen Opening} 7. c4 dxc4 (7... c6 8. Nc3 Bf5 9. Qc2 Be7 10. cxd5 cxd5 11. Be2 O-O 12. O-O Rc8 13. Qb2 {½-½ (42) Van Geet,D (2617)-Boger,R (2642) ICCF email 2009}) 8. Bxc4 Bd6 9. Nc3 Bf5 {LiveBook: 4 Games} 10. f3 O-O 11. O-O Bg6 12. fxe4 {Hoping for e5.} Nxe4 13. Nxe4 Bxe4 14. Qg4 {[%csl Gd4][%cal Rg4g7]} Bg6 $146 15. Rf5 {aiming for Raf1.} c5 {[#]} 16. Bc3 $1 $40 {[%mdl 128] White attacks with force.} Qc8 $2 {[%mdl 8192]} (16... b5 $16 17. Bxb5 Bxh2+ 18. Kh1 (18. Kxh2 Qb8+ 19. Kg1 Qxb5 $14) 18... Qc8) 17. Raf1 $18 Kh8 {Threatening ...f6.} 18. Qg5 f6 {[#]} 19. Rxf6 $1 {[%mdl 512]} Rxf6 20. Rxf6 ({Weaker is} 20. Bxf6 Qc7 $16) (20. Qxf6 Qd7 $16) 20... Qc6 21. Bd5 Qb6 {[#]} 22. Qxg6 $3 {[%mdl 512] White threatens Rf8+! and mate.} hxg6 {[#]} 23. Rf3 $1 {[%cal Rf3h3] White mates.} Bxh2+ 24. Kh1 {[%cal Rf3h3]} Bf4 25. Rh3+ {[%mdl 32768] Precision: White = 96%, Black = 21%. . Loss on Time!?} 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "3"]
[White "Gurevich, Dmitry"]
[Black "Gordievsky, Dmitry"]
[Result "0-1"]
[ECO "A30"]
[WhiteElo "2454"]
[BlackElo "2613"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,80,50,47,16,53,22,16,6,4,0,29,12,31,41,108,113,99,118,104,107,162,76,181,183,173,180,182,185,169,49,47,46,139,143,137,116,152,21,92,107,136,103,132,132,111,125,122,114,95,-123,-111,-809,-800,-995,-701,-1378,-657,-856,-856,-849,-845]} 1. Nf3 Nf6 2. c4 b6 3. g3 c5 4. Bg2 Bb7 5. O-O e6 6. Nc3 Be7 7. d4 cxd4 8. Qxd4 O-O 9. Rd1 Nc6 10. Qf4 d6 11. b3 Qb8 12. Ba3 {[%cal Ra3d6] A30: Symmetrical English: Double Fianchetto and Hedgehog} (12. Bb2 Rd8 13. e4 a6 14. Qe3 Nd7 15. Rd2 Ra7 16. h3 Ba8 17. Bf1 Nde5 18. Nh2 Rb7 19. Qe2 Na5 20. f4 Nd7 {0-1 (45) Iturrizaga Bonelli,E (2607)-Gonzalez Torres,D (2627) Bogota 2010}) 12... Ne5 13. Nb5 {[%cal Ra3d6]} Ng6 $146 ({Predecessor:} 13... Rd8 14. Bxd6 Bxd6 15. Rxd6 Rxd6 16. Nxd6 Qxd6 17. Qxe5 Rd8 18. Qxd6 Rxd6 {1-0 (62) Siegel,G (2453)-Lucchetti,P (2190) Besancon 2001}) 14. Qe3 {[%cal Ra3d6] The position is equal.} Rd8 15. Rac1 h5 16. Nbd4 Ng4 17. Qd3 $36 {[%mdl 2048] White is pushing.} e5 (17... N4e5 $14 18. Qc2 h4) 18. Nf5 $16 e4 19. Qc3 $1 {[%csl Gf5][%cal Rc3g7]} Bf6 20. N3d4 h4 (20... d5 $16) 21. Ne3 (21. Bh3 $1 $18 {[%cal Rh3g4]} N4e5 22. Qe3) 21... Qc8 (21... Nxe3 $16 22. Qxe3 d5) 22. Bh3 $18 Nxe3 23. Bxc8 Nxd1 24. Rxd1 Raxc8 25. Qe3 (25. Qc2 $18) 25... d5 $14 26. Nf5 d4 ({Black should try} 26... dxc4 $14 27. Nd6 hxg3) 27. Nxd4 $16 Rd7 28. Bb2 {[%cal Ba3b2,Bb2c3,Bc3f6][%mdl 32]} Rcd8 29. Kg2 ({Better is} 29. Bc3 $16) 29... Bc8 (29... hxg3 $11 {remains equal.} 30. fxg3 (30. hxg3 Ne5 $11) 30... Ne5) 30. h3 Bb7 31. Bc3 Ne7 32. g4 $1 Ng6 {With the idea ...Be5.} 33. Nf5 $1 Rxd1 34. Bxf6 R8d2 ({Not} 34... gxf6 $2 35. Qh6 $18) 35. Bg5 $2 {[#]} ({But not} 35. Bxg7 $2 Rxe2 $1 {[%mdl 512]} 36. Bf6 Rxe3 $19) (35. Kh2 $1 $16 {is necessary to keep the advantage.} Rc2 36. Bxh4 (36. Bxg7 Rcc1 $14)) 35... Re1 $1 $17 36. Nd4 $2 {[%mdl 8192]} (36. Kh2 $17 Rdd1 37. Nxh4) 36... Rdd1 $19 {( -> ...Rg1+). Black is clearly winning.} 37. f4 {[#]} Rxd4 $1 {[%mdl 512]} 38. Kf2 (38. Qxd4 e3+) 38... Rd3 39. Qxd3 exd3 40. Kxe1 f6 {Precision: White = 31%, Black = 43%.} 0-1

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "3"]
[White "Torres Rosas, Luis Carlos"]
[Black "Lin, Andy"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2360"]
[BlackElo "2147"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,87,56,88,83,98,60,116,116,123,120,127,129,137,108,104,104,116,0,0,0,0,0,0,0,0,8,20,0,58,60,142,141,133,64,306,297,302,236,313,306,710,706,740,722,716,344,316,39,40,43,37,-33,-33,-35,131,125,126,120,225,222,707,706,705,706,805,805,1577,1577,29987,1208,29992,0]} 1. d4 d5 2. c4 e6 3. Nf3 c6 4. Qc2 dxc4 5. Qxc4 Nf6 6. Qc2 {D23: Queen's Gambit Accepted: 3 Nf3 Nf6 sidelines} (6. Bg5 b5 7. Qc2 Bb7 8. g3 Nbd7 9. Bg2 c5 10. dxc5 Bxc5 11. O-O Rc8 12. Qb3 a6 13. a4 b4 14. Nbd2 {1-0 (32) Lalith,B (2587)-Zhigalko,S (2671) Doha 2016}) 6... b5 7. e4 Bb7 8. Bd3 h6 9. O-O Nbd7 {LiveBook: 3 Games} 10. Nc3 Rc8 11. a3 $146 ({Predecessor:} 11. Qe2 Be7 12. e5 Nh7 13. Bxh7 Rxh7 14. Qe4 g6 15. h4 Qb6 16. h5 {0-1 (43) Sazonov,A-Vasiliev,D RCCA corr 2002}) 11... Be7 (11... c5 $14) 12. Qe2 $16 a6 13. b4 Qc7 14. Bb2 O-O 15. e5 Nd5 16. Qe4 {[%csl Gd3][%cal Re4h7]} g6 17. Nh4 (17. Qg4 $16) 17... Nxc3 $1 $11 18. Bxc3 {Nxg6! is the strong threat.} c5 19. Qg4 $1 $40 {[%mdl 128] Black must now prevent Nxg6! White mounts an attack.} Bxh4 20. Qxh4 c4 21. Bc2 Kg7 $1 22. f4 {[%cal Bf2f4,Bf4f5,Bf5f6][%mdl 32]} Qd8 (22... Rg8 $11) 23. Qg3 $14 Nb6 (23... Kh7 $14) 24. f5 $16 {aiming for f6+.} Qg5 {[%cal Rg6f5]} 25. f6+ $1 Kh7 $2 (25... Kh8 $1 $14) 26. Qf2 $1 $18 Rfd8 27. Bd2 Qg4 {Hoping for ...Bxg2!} 28. h3 $1 {[%cal Rh3g4]} Qh5 $2 ({Of course not} 28... Qxd4 29. Be3 $18) (28... Qxg2+ 29. Qxg2 Bxg2) 29. Bd1 Qf5 30. Qh4 g5 31. Rxf5 (31. Qh5 $142 Qg6 32. Bc2 $1 {[%mdl 512]} Rxd4 33. Bxg6+ fxg6 34. Qe2) 31... gxh4 32. Rf4 $2 (32. Rh5 $18 Rxd4 33. Rxh6+ Kg8 34. Be3) 32... Rg8 33. Bc2+ $1 Kh8 34. g4 ({White should try} 34. Rf2 $14) 34... c3 $15 35. Bc1 Nd5 $2 (35... Nc4 $15 {stays ahead.}) 36. Rf2 $16 h5 37. g5 Rgd8 (37... Nb6 $16 {might work better.}) 38. Kh2 $18 Rc4 $2 (38... Rg8 39. g6 Rxg6) 39. g6 fxg6 40. Bxg6 Rxd4 41. Bh6 Nxf6 42. exf6 Rf4 43. Kg1 (43. Bxf4 $142 Bg2 44. f7 Kg7 45. Rxg2 e5 {[#]} 46. Rd1 $1 {[%mdl 512]} Rb8 47. Bxe5+ Kf8 48. Bf6 Rc8 49. Bxh5 Rc7 50. Rg8#) 43... Rfd4 44. Kh2 $2 {[%mdl 32768] Precision: White = 55%, Black = 29%. . Sensor Board Error (Ke4/e5)?} (44. f7 {mates} Rf8 45. Bxf8 Bf3 46. Bd6 Rd1+ 47. Rxd1 Kg7 48. Rxf3 Kh6 49. f8=Q+ Kxg6 50. Qf7+ Kh6 51. Bf4#) 1-0

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "3"]
[White "Ginsburg, Mark"]
[Black "Kiewra, Keaton F"]
[Result "0-1"]
[ECO "E91"]
[WhiteElo "2341"]
[BlackElo "2429"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,96,20,-10,17,11,5,-6,10,-18,39,19,54,27,41,-52,67,9,35,23,22,21,33,15,6,6,16,8,33,28,54,9,12,12,21,0,8,8,6,6,8,-59,-64,-54,0,-80,-58,-190,-132,-136,-137,-276,-166,-160,-156,-162,-132,-157,-145,-149,-22,-21,-20,-102,-97,-164,-57,-134,-150,-179,-168,-456,-434,-635,-621,-577,-561,-1408,-1390]} 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. Nf3 O-O 6. Be2 c6 7. O-O e5 8. Re1 exd4 9. Nxd4 Re8 10. Bf1 Nbd7 11. Nc2 Qc7 {E95: King's Indian: Classical: 7...Nbd7 8 Re1} (11... Qe7 12. Be3 Ne5 13. Qd2 Be6 14. Na3 a6 15. f3 b5 16. cxb5 axb5 17. Nc2 Reb8 18. b3 b4 19. Na4 {½-½ (57) Swayams,M (2470)-Kovalev,V (2560) Moscow 2016}) 12. Bf4 Ne5 13. Qd2 Be6 {The position is equal.} 14. b3 Rad8 (14... Nh5 $11 15. Bg5 Qa5) 15. Bg5 $146 ({Predecessor:} 15. f3 Qa5 16. Nd4 Bc8 17. Rad1 Nfd7 18. Kh1 Nc5 19. Bg5 {½-½ (71) Trajkovic,P (2280)-Lazic,D (2286) Kragujevac 2000}) 15... a6 16. Rad1 b5 17. Qf4 (17. cxb5 $14 axb5 18. Nd4) 17... Qe7 (17... Neg4 $1 $15) 18. c5 (18. cxb5 $14 axb5 19. h3) 18... Bg4 19. f3 Bc8 20. cxd6 Rxd6 21. Rxd6 Qxd6 22. Rd1 Qc5+ 23. Qe3 Qxe3+ 24. Bxe3 Bf8 25. a4 Be6 {[#] White must now prevent ...b4.} 26. Nd4 Bc5 27. Kf2 Bxd4 (27... Nfg4+ $5 28. fxg4 Nxg4+ 29. Ke2 b4 $11) 28. Bxd4 Bxb3 29. Rb1 bxa4 30. Bxa6 (30. Ra1 $11) 30... Nfd7 $15 31. Be2 c5 (31... f5 $15) 32. Be3 (32. Bxe5 $1 $11 {keeps the balance.} Nxe5 33. f4) 32... c4 $17 33. Bd4 (33. Nb5 $15) 33... a3 (33... Nc6 $19 34. Be3 a3) 34. Nd5 a2 35. Rc1 (35. Ra1 $17 {is a better defense.}) 35... f5 {...Nd3+ is the strong threat.} 36. Ke3 Kf7 37. h4 Ra8 38. Ba1 Ra3 39. Kd2 h5 ({Black should play} 39... fxe4 $17 40. fxe4 Ke6 41. Nc7+ Ke7) 40. exf5 $1 $11 gxf5 41. Nf4 (41. Ne3 $1 $11) 41... Ra6 $17 42. Nxh5 (42. g3 $17) 42... Rh6 (42... Rd6+ $19 43. Ke3 Nd3) 43. g4 ({Better is} 43. Ng3 $15) 43... Rd6+ 44. Ke3 Nd3 $36 {[%mdl 2048] Black has strong initiative.} 45. Rc3 $2 {[#]} (45. Rg1) 45... Nb6 $1 $19 {Black is clearly winning.} 46. Bxd3 (46. gxf5 $142 Nd5+ 47. Kd2 Nxc3 48. Kxc3) 46... Nd5+ ({Worse is} 46... cxd3 47. Rxd3 Re6+ 48. Kd2 $11) 47. Kf2 Nxc3 48. Bxf5 Nb5 {Precision: White = 26%, Black = 34%.} 0-1

[Event "Las Vegas Festival 2017"]
[Site "Las Vegas"]
[Date "2017.06.17"]
[Round "3"]
[White "Atoufi, Pedram"]
[Black "Raptis, Nick"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "2281"]
[BlackElo "2296"]
[Annotator "TA"]
[PlyCount "188"]
[EventDate "2017.??.??"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,188,16,-11,11,0,0,3,8,0,-1,4,8,-8,24,17,21,17,40,-38,-38,-37,-34,-42,-45,-42,-35,-63,-47,-56,-32,-33,-15,-68,-68,-68,-69,-89,-89,-89,-89,-89,-89,-89,-89,-89,-89,-90,-56,-90,-76,-90,-90,-122,-122,-122,-78,-122,-122,-122,-122,-122,-122,-122,-122,-122,-122,-122,-122,-122,-122,-122,-25,-122,-122,-122,-122,-122,-8,-8,-8,-122,-122,-122,-122,-122,-8,-56,-8,-122,-7,-122,-122,-122,-122,-122,0,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,0,-8,0,0,0,-8,-8,-8,0,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,0,0,0,0,0,0,0,-8,-8,-8,-8,-12,-8,-122,-122,-122,-8,-16,0,-122,-122,-5285,-479,-1675,-1434,-29981,-29981,-29981,-29982,-29983,-29983,-29988,-29989,-29989,-29990,-29990,-29991,-29991,-29992,-29992,-29992]} 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nc6 5. Bb5 Bd6 6. c4 dxc4 7. d5 {[%cal Bd4d5,Bd5c6][%mdl 32]} a6 8. Ba4 b5 9. dxc6 bxa4 10. O-O Ne7 11. Qxa4 Be6 {C01: French: Exchange Variation} (11... O-O 12. Nc3 Rb8 13. Qxc4 Rb4 14. Qe2 Nxc6 15. h3 Re8 16. Be3 Rf4 17. Rad1 Rf5 18. Nd4 Nxd4 19. Rxd4 Bb7 20. Rfd1 {½-½ (55) Bukavshin,I (2616)-Ponkratov,P (2617) St Petersburg 2014}) 12. Ng5 Bd5 13. Nc3 Bxc6 {The position is equal.} 14. Qxc4 O-O 15. Nge4 Qd7 16. Bg5 $146 ({Predecessor:} 16. Nxd6 cxd6 17. Bg5 Rfc8 18. Qe2 Ng6 19. Rad1 {0-1 (40) Tomilova,E (2315)-Milanovic,S (2375) Moscow 2015}) 16... Nd5 (16... Bb5 {is more complex.} 17. Nxb5 axb5 18. Qb3 c6 19. Nxd6 Qxd6 20. Bxe7 Qxe7 21. Rfe1 Qf6) 17. Nxd6 Nxc3 18. Qxc3 {aiming for Nc4.} Qxd6 19. Rfc1 (19. Bf4 $14 Qxf4 20. Qxc6) 19... Bxg2 $1 $15 20. Qxc7 Qg6 21. Kxg2 Qxg5+ 22. Qg3 Qb5 23. Qb3 Qe5 24. Qc3 Qe4+ 25. Qf3 Qb4 26. Qb3 (26. b3 $11) 26... Qxb3 27. axb3 {[%mdl 4096] Endgame KRR-KRR} Rfb8 28. Rc6 Rxb3 29. Raxa6 Rab8 30. Rc2 g6 {[%cal Bg7g6,Bg6g5][%mdl 32]} 31. Ra2 R8b5 32. f3 Kg7 33. Kg3 g5 34. Kg2 h5 {[%cal Bh7h5,Bh5h4][%mdl 32]} 35. h3 Kg6 36. Ra6+ f6 $1 37. Ra2 Kf5 38. Kg3 h4+ 39. Kg2 R5b4 40. Rf2 Kf4 41. Ra6 f5 ({But not} 41... Rxb2 42. Rxf6+ Ke5 43. Rf8 $15) 42. Ra2 Rd3 43. Ra1 Rbd4 44. Rc1 Rd2 45. Rc2 Rd1 (45... Rxc2 $1 $17 46. Rxc2 Rd3) 46. Rfe2 (46. Rc3 $11) 46... R1d3 $17 47. Rf2 Re3 48. Rc5 Re1 (48... Rb3 $17 49. Rfc2 Rdb4 50. R5c4+ Rxc4 51. Rxc4+ Ke3) 49. Rfc2 $11 Red1 50. Re2 (50. R5c4 $11) 50... R1d2 $17 51. Rc2 Rxe2+ 52. Rxe2 {KR-KR} Rc4 ({Black should try} 52... Rd3 $17 53. Rc2 Ke3) 53. Kf2 (53. b3 $5 {[%cal Rb3c4]} Rb4 54. Rb2 $17) 53... Rc1 54. Kg2 (54. Rd2 $1 $11 {was the only way to keep the balance.}) 54... Rb1 (54... Rd1 $1 $17 55. Rc2 Rd3 56. Rc4+ Ke3) 55. Kf2 (55. Rc2 $11 {keeps the balance.}) 55... Rh1 56. Kg2 Rd1 57. Rc2 Ke3 (57... Rd3 $17 58. Rc4+ Ke3) 58. Rc3+ Kd4 {And now ...Rd2+ would win.} 59. Rc2 Rb1 60. Kf2 f4 61. Rd2+ Kc4 62. Rc2+ Kd3 63. Rc3+ Kd2 (63... Kd4 {looks sharper.} 64. Rb3 Rh1 65. Kg2 Ra1 66. Kf2 Ra5) 64. Rb3 Kc2 65. Rc3+ $1 Kd2 66. Rb3 $1 Rh1 {Hoping for ...Rh2+.} 67. Kg2 Re1 68. Rb5 Re2+ 69. Kg1 Ke3 70. Rb3+ Kd4 71. Rb5 Kd3 72. Rb3+ Kc4 73. Rb8 $1 Re1+ 74. Kf2 Rh1 75. Kg2 Rb1 76. Kf2 Kd3 77. Rb5 Rc1 78. Rb3+ Kc4 79. Rb8 $1 {[%cal Rb8c8] Black must now prevent Rc8+.} Rc2+ 80. Kg1 {Rc8+ is the strong threat.} Kd3 {Strongly threatening ...Ke2.} (80... Kd4 {is more complex.} 81. Rb3 Rc5 82. Kf2 Re5 83. Rb8 Kd3) 81. Rb3+ (81. Re8 $1 $11) 81... Ke2 82. Kg2 Kd2 ({Black should play} 82... Rd2 $17 {Threatens to win with ...Ke1+.} 83. Rc3 Rxb2) 83. Kg1 Ke2 ({Better is} 83... Ke1 $11) 84. Kg2 Rd2 85. Kg1 $2 {[%mdl 8192] [#]} (85. Ra3 $17) 85... Rd1+ $1 $19 86. Kg2 {[#]} (86. Kh2 $142 Rf1 87. Rb5) 86... Rf1 $1 87. Rb5 Rf2+ {Black mates.} 88. Kg1 Rxf3 89. Kh2 Re3 90. Ra5 f3 {[%cal Bf4f3,Bf3f2][%mdl 32]} 91. b4 f2 92. Ra2+ Kf3 93. Ra1 Re1 94. Ra3+ Kf4 {Precision: White = 46%, Black = 58%.} 0-1

