[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.03"]
[Round "3"]
[White "Stukopin, Andrey"]
[Black "Bruzon Batista, Lazaro"]
[Result "1/2-1/2"]
[ECO "B53"]
[WhiteElo "2565"]
[BlackElo "2664"]
[Annotator "TA"]
[PlyCount "161"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,161,-16,-8,-18,-17,-27,-6,-12,-6,-12,-19,-121,-126,-113,-72,-114,-125,-125,-122,-123,-125,-124,-120,-145,-155,-134,-119,-158,-139,-134,-126,-120,-125,-109,-108,-118,-116,-237,-237,-239,-241,-230,-231,-235,-155,-154,-154,-154,-154,-155,-155,-155,-155,-155,-154,-196,-155,-278,-272,-260,-278,-250,-188,-327,-327,-327,-327,-366,-326,-318,-307,-300,-287,-307,-304,-290,-290,-297,-290,-327,-290,-646,-622,-1295,-1270,-5327,-5057,-5327,-54,-54,-54,-54,-54,-54,-54,-54,-54,-54,-54,-54,-54,-54,-54,-54,-54,-54,-54,-54,-9,-9,-9,-9,-9,-9,-9,-9,-9,-54,-54,-54,-54,-54,-9,-9,-9,-9,-9,-9,-9,-10,-10,-10,-10,-10,-10,-10,-10,-10,-10,-10,-10,-10]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Qd3 Nf6 7. c4 {B53: Sicilian: 2...d6: Lines with Qxd4} g6 8. Nc3 Bg7 9. h3 Nb4 10. Qe2 a6 11. Bxd7+ Nxd7 {LiveBook: 3 Games} 12. O-O Bxc3 13. bxc3 Nc6 14. Rb1 Qc7 {[#]} 15. Bh6 $146 Rc8 16. Ng5 (16. Bg7 $11 {remains equal.} Rg8 17. Bd4) 16... Nd8 $1 $17 17. Rb4 a5 $36 {[%mdl 2048] Black is really pushing.} 18. Rb5 f6 19. Nf3 Qxc4 20. Qxc4 Rxc4 21. Rxa5 Rxe4 22. Nd2 {[#]} Re5 $1 {[%cal Re5a5]} 23. Ra8 Nb6 24. Ra7 Kf7 25. Be3 Nd5 26. Nc4 Re4 27. Bd4 Ke6 28. Nd2 Re2 29. Rd1 (29. Nb3 $17 {might work better.}) 29... Nc6 $19 30. Rxb7 Nxd4 31. cxd4 Ra8 32. Kf1 Nc3 33. Nb1 {[#]} Nxb1 $1 {[%mdl 512]} 34. Rbxb1 Raxa2 35. Re1 Rxe1+ 36. Rxe1+ $17 {[%mdl 4096] Endgame KR-KR} Kf7 37. Rd1 g5 38. d5 h5 39. g3 (39. Rd4 $17) 39... Ra4 $19 40. Rd3 f5 41. Rd2 Kf6 42. f3 (42. Rb2 {was called for.}) 42... f4 43. gxf4 Rxf4 44. Kg2 Kf7 45. Rd3 Ke8 46. Kg3 Kd7 47. Rd2 Rf5 48. Rd4 Kc7 49. h4 Kb6 50. Re4 gxh4+ ({Weaker is} 50... Rxd5 51. Rxe7 gxh4+ 52. Kxh4 $15) 51. Kxh4 $2 (51. Kf2) 51... Rxf3 52. Kxh5 Kc5 53. Rxe7 Kxd5 54. Kg4 Rf8 $2 (54... Rf1 $19 55. Kg3 Kd4) 55. Re1 $1 $15 Rf6 56. Rd1+ Kc6 57. Rc1+ Kd7 58. Rd1 Rf8 59. Kg3 Kc6 60. Rc1+ Kb5 61. Rb1+ Kc4 $1 62. Rc1+ Kb3 {...d5 is the strong threat.} 63. Rd1 Rf6 64. Kg4 Kc2 65. Kg5 Re6 66. Rd5 Kc3 {( -> ...Re5+)} 67. Kf5 Rh6 68. Rd1 Kc4 69. Kg5 Re6 70. Kf5 Re5+ 71. Kf4 Rd5 72. Rc1+ {The position is equal.} Kb5 73. Ke3 Rc5 74. Rb1+ $1 Kc4 75. Rc1+ Kd5 76. Rh1 Rc3+ 77. Kd2 Rg3 78. Rh5+ Kc4 79. Rh4+ Kc5 80. Kc2 d5 81. Kd2 $1 {Accuracy: White = 52%, Black = 75%.} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.03"]
[Round "4"]
[White "Bruzon Batista, Lazaro"]
[Black "Chandra, Akshat"]
[Result "1-0"]
[ECO "D78"]
[WhiteElo "2664"]
[BlackElo "2492"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,69,0,0,0,0,0,11,0,0,4,16,0,49,56,45,58,55,57,69,65,86,88,186,193,211,231,371,328,372,358,371,370,353,364,341,365,337,333,418,419,398,399,570,567,566,550]} 1. Nf3 {Metz Alekhine/Primel,D} d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. O-O O-O 6. c4 c6 7. Qb3 Qb6 8. Nc3 Rd8 9. Rd1 {D78: Fianchetto Grünfeld: 6 0-0 c6} (9. Bd2 Be6 10. Na4 Qxb3 11. axb3 Nbd7 12. Rfc1 Ne4 13. Bb4 Nd6 14. e3 dxc4 15. bxc4 Nxc4 16. Bxe7 Re8 {½-½ (102) Rapport,R (2725)-Jones,G (2677) Douglas 2018}) 9... Bf5 10. Ne1 Be6 11. c5 Qxb3 12. axb3 Nbd7 13. b4 a6 {LiveBook: 4 Games} 14. h3 Ne8 15. Bf4 {[%cal Bc1f4,Bf4g3,Bg3c7][%mdl 32] [#]} h6 $146 ({Predecessor:} 15... f5 16. f3 Bf7 {½-½ (49) Maiorov,N (2552)-Libiszewski,F (2523) Metz 2012 EXT 2013 [Metz Alekhine/Primel,D]}) 16. g4 Nf8 17. e3 g5 18. Bg3 h5 19. gxh5 Nf6 20. Na4 N8d7 21. Nd3 Nxh5 22. Bc7 Rf8 {[#]} 23. Nb6 $1 $36 {[%mdl 2048] White is in control.} Rae8 {[#]} (23... Nxb6 $16 24. cxb6 Nf6) 24. b5 $1 $18 {[%cal Rb5a6]} axb5 25. Ra7 Nb8 (25... f5 {keeps fighting.} 26. Rxb7 f4) 26. Rxb7 Na6 27. Bh2 Bf5 28. Nd7 Bxd7 29. Rxd7 Nf6 30. Ra7 Ra8 31. Rxe7 Rfd8 32. Rb7 Nd7 33. Ra1 Naxc5 (33... Bf8 {was worth a try.} 34. Ra3 Bg7) 34. Rxa8 Nxb7 35. Ra7 {Precision: White = 93%, Black = 60%.} 1-0

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.03"]
[Round "4"]
[White "Swiercz, Dariusz"]
[Black "Cordova, Emilio"]
[Result "1/2-1/2"]
[ECO "E15"]
[WhiteElo "2649"]
[BlackElo "2597"]
[Annotator "TA"]
[PlyCount "47"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,47,8,33,8,14,9,8,8,28,31,36,33,29,7,15,9,7,5,8,5,7,0,0,-6,0,0,6,6,6,6,11,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb7 6. Bg2 Bb4+ 7. Bd2 a5 8. O-O O-O 9. Nc3 Re8 {LiveBook: 20 Games} 10. Rc1 {E15: Queen's Indian: 4 g3 sidelines, 4 g3 Ba6 and 4 g3 Bb7 early deviations} h6 11. Qc2 d6 $146 ({Predecessor:} 11... Bxc3 12. Bxc3 Be4 13. Qd2 d5 14. Qf4 Nbd7 15. Rfd1 c6 16. Bb2 a4 17. cxd5 Bxd5 {0-1 (37) Kortschnoj,V (2585)-Anand,V (2670) Roquebrune 1992}) 12. Rfe1 Bxc3 13. Bxc3 Be4 14. Qb2 c6 15. Bf1 b5 {The position is equal.} 16. c5 Bxf3 (16... b4 $5 17. Bd2 $8 dxc5 $11) 17. exf3 Nd5 18. Bd2 a4 19. b4 a3 20. Qb1 Ra4 21. Be2 dxc5 22. dxc5 Na6 {[%cal Rd5b4]} 23. Bd1 Ndxb4 24. Bc3 {Accuracy: White = 54%, Black = 56%.} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.03"]
[Round "4"]
[White "Quesada Perez, Yuniesky"]
[Black "Hilby, Craig"]
[Result "1-0"]
[ECO "C95"]
[WhiteElo "2642"]
[BlackElo "2445"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,61,0,0,-8,29,35,29,11,29,18,19,14,83,65,126,52,225,232,332,332,308,224,1019,352,330,337,329,324,597,597,1041,1025,2157,1707]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 {[%cal Bf1b5,Bb5a4,Ba4b3][%mdl 32]} 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. Nbd2 c5 12. Nf1 {C95: Closed Ruy Lopez: Breyer Variation with 10 d4} Re8 13. Ng3 Bf8 14. Bc2 cxd4 15. cxd4 exd4 {LiveBook: 9 Games} 16. Bf4 {[#]} d3 $146 ({Predecessor:} 16... Bb7 17. Nxd4 g6 18. Qd2 Nc5 19. Bg5 Bg7 {½-½ (37) Karjakin,S (2760)-Kovalev,V (2664) Batumi 2018}) 17. Qxd3 Nc5 18. Qd2 Bb7 {[%cal Rc5e4]} 19. Bg5 $1 h6 20. Bh4 Ne6 (20... Ncd7 $11 {keeps the balance.}) 21. Nf5 {[%cal Bg3f5,Bf5h6,Bh6g4][%mdl 32]} g5 {[#]} (21... Rc8 $14) 22. Bg3 (22. Nxg5 $1 $16 {Strongly threatening Nf3.} hxg5 23. Bxg5) 22... Nc5 $2 {[#]} (22... d5 $1 $14) 23. Nxg5 $1 $18 {[%mdl 512]} hxg5 (23... Nh5 $142) 24. Qxg5+ Kh8 25. Nh6 Qe7 $2 {[#]} (25... Bxh6 26. Qxh6+ Kg8) 26. e5 $2 (26. Bxd6 $1 {[%mdl 512]} Ne6 (26... Qxd6 27. Nxf7+) 27. Qh4 Bxh6 28. Qxh6+ Nh7 29. Bxe7 Rxe7 30. e5) 26... Ne6 27. Qh4 {Ng4+ would kill now.} ({Weaker is} 27. exf6 Nxg5 28. Rxe7 (28. fxe7 Bxh6 29. Bxd6 Bg7 $11) 28... Rxe7 $14) 27... Nh7 {Black wants to play ...Qxh4.} 28. Qh5 ({Not} 28. Qxe7 Rxe7 29. exd6 Rd7 $18) 28... Neg5 $2 (28... Bxh6 29. Qxh6 Neg5) 29. Ng4 {White is clearly winning.} dxe5 30. Rxe5 Qc7 31. Bxh7 {Accuracy: White = 64%, Black = 18%.} 1-0

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.03"]
[Round "4"]
[White "Prohaszka, Peter"]
[Black "Yoo, Christopher Woojin"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "2613"]
[BlackElo "2388"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,100,38,31,0,0,-10,0,0,0,-28,-24,-24,-28,-31,-29,-19,-18,-30,-29,-69,-34,-32,-28,-54,-22,-91,-88,-89,-89,-251,-248,-240,-164,-135,-128,-131,-113,-127,0,0,0,-28,-29,-30,-37,-41,-11,-20,-19,-143,-149,-189,-198,-206,-200,-170,0,0,0,-162,-131,-274,-294,-331,-322,-318,-307,-323,-318,-500,-481,-472,-243,-608,-588,-622,-560,-698,-682,-754,-729,-1043,-1033,-1098,-976,-1323,-1093]} 1. Nf3 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 O-O 5. Bg2 d5 6. c4 Nc6 {A05: Réti Opening: 1 Nf3 Nf6} (6... c6 7. O-O Bg4 8. d3 e6 9. Nbd2 Bxf3 10. Nxf3 Nbd7 11. Qc2 Ne8 12. d4 Nd6 13. e3 Ne4 14. Ne1 f5 15. Nd3 Rf7 16. Rae1 {1-0 (75) Dubov,D (2703)-Rakhmanov,A (2634) Sochi 2018}) 7. cxd5 Nxd5 8. Bxg7 Kxg7 {LiveBook: 7 Games. White is slightly better.} 9. O-O e5 10. d4 $146 ({Predecessor:} 10. d3 Be6 11. Qd2 f6 12. Qb2 Nb6 13. Nbd2 Bd5 14. Rac1 {1-0 (63) Sedlacek,P (2234)-Koutny,P (2177) Slovakia 2017}) 10... exd4 11. Nxd4 Qf6 12. Nxc6 (12. Nc2 $5 {[%cal Rd1d5]} Nde7 13. Nd2 $11) 12... Qxa1 13. Qxd5 bxc6 14. Qxc6 {[%mdl 64] Double Attack} Bf5 $36 {[%mdl 2048] Black fights for an advantage.} 15. Nc3 {[%cal Bb1c3,Bc3d5,Bd5f4][%mdl 32]} Qb2 16. h3 (16. Qxc7 $2 Rac8 $19) 16... h5 17. Nd5 ({But not} 17. Qxc7 $2 Rac8 $19) 17... Rae8 18. Nf4 Qe5 19. Rc1 Re7 (19... h4 $5) 20. e3 (20. Rc5 $11 {keeps the balance.} Qd6 21. Qb5) 20... Rd8 $17 21. Rc5 Qb2 $1 {White must now prevent ...Rd1+.} 22. Kh2 $2 (22. Nd5 $17 {is a better defense.} Red7 23. e4) 22... Rd6 $19 (22... Qxa2 23. Rxf5 $1 {[%mdl 512]} Rd6 24. Qc3+ f6 25. Rg5 $18) 23. Qa8 {intending Nxh5+.} Qxf2 24. Rxf5 gxf5 25. Nxh5+ Kg6 26. Qh8 f6 (26... Re4 $1 $17 27. Nf4+ Rxf4 $1 {[%mdl 512]} 28. exf4 Qxa2) 27. Nf4+ $11 Kf7 28. Qh5+ Kg8 29. Qg6+ Kf8 30. Qxf5 Ke8 31. Qg6+ Kd8 {[#]} 32. e4 (32. Nd5 $1 $11 {[%mdl 512] was the only way to keep the balance.}) 32... c6 $17 ({Resist} 32... Qxa2 33. Nd5 $15) 33. h4 Qxa2 34. Qg8+ Kc7 35. Qc4 Kd8 $2 ({Better is} 35... Rd2 $19 {aiming for ...Rc2.} 36. e5 Rc2) 36. Qb4 Kc7 $2 (36... Rd2 $11) 37. Qc4 $1 $19 Kc8 38. Qb4 (38. Nd5 $17 Red7 39. Qc5) 38... Qd2 39. Qc5 Qd4 40. Qf5+ Kb7 41. Ng6 Rg7 42. h5 (42. e5 $142 fxe5 43. Nxe5) 42... Qe3 43. b4 Qg5 (43... Rd3 $142 44. Qf4 Qe2) 44. Qh3 $2 (44. Qxg5 fxg5 45. Kh3) 44... Rh7 {Black is clearly winning.} 45. Nf4 Rd1 46. Bf3 Rd2+ 47. Bg2 Rb2 48. Kg1 Rxb4 49. Bf3 Rb2 {( -> ...Qc5+)} 50. Kh1 Qc5 {Accuracy: White = 36%, Black = 77%.} 0-1

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.03"]
[Round "4"]
[White "Bai, Jinshi"]
[Black "Negi, Parimarjan"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2572"]
[BlackElo "2656"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,73,50,45,54,45,65,87,97,124,109,113,126,149,149,147,108,173,174,172,173,173,175,168,167,166,166,199,197,213,217,187,174,222,211,201,222,271,271,269,261,269,266,261,263,348,348,421,421,421,377]} 1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. b3 O-O 7. Bb2 c5 8. d4 cxd4 9. Qxd4 Nc6 {A30: Symmetrical English: Double Fianchetto and Hedgehog} 10. Qf4 Rc8 (10... d5 11. Rd1 Qb8 12. Ne5 Bd6 13. Nxc6 Bxc6 14. Qh4 Be7 15. Nc3 Qb7 16. cxd5 Nxd5 17. Qc4 b5 18. Qd3 Rfd8 19. Nxd5 Bxd5 20. Bxd5 Rxd5 {½-½ (33) Melkumyan,H (2640)-Inarkiev,E (2730) Izmir 2016}) 11. Rd1 $146 ({Predecessor:} 11. Nc3 a6 12. e4 d6 13. Rfd1 Qc7 14. Rac1 Qb8 15. Qe3 Ba8 16. Qe2 Rfd8 17. Nd4 Nxd4 18. Rxd4 {½-½ (25) Tonsingh,O (2200)-Skalli,K Dubai 1986}) 11... Qc7 12. Nc3 a6 13. Qxc7 Rxc7 {LiveBook: 5 Games} 14. Nd5 exd5 15. cxd5 Rcc8 {aiming for ...Nb4.} 16. dxc6 dxc6 17. Ne5 Rc7 {[#]} 18. Nc4 $1 b5 19. Be5 Rcc8 20. Bd6 bxc4 (20... Rce8 $16 {was necessary.}) 21. Bxe7 $18 Rfe8 22. Bxf6 $1 gxf6 23. Rd7 Rb8 24. bxc4 Bc8 25. Rd6 c5 26. e3 ({Don't play} 26. Rxf6 $6 Be6 $16) 26... Kg7 27. Bd5 Rb2 28. h4 Be6 29. Rxa6 Bxd5 30. cxd5 {[%cal Bc4d5,Bd5d6][%mdl 4128] Endgame KRR-KRR} Reb8 31. Rc1 Rd2 32. Rc4 ({Weaker is} 32. Rxc5 Rbb2 $14) 32... f5 33. d6 (33. Rxc5 Rb1+ 34. Kg2 Rbb2 $14) 33... Rbb2 34. Rf4 ({Not} 34. Rxc5 Rxf2 35. Rac6 Rg2+ 36. Kf1 Rh2 $11) 34... Rd5 35. a4 Rb4 36. Rxb4 cxb4 37. Rb6 {Accuracy: White = 98%, Black = 53%.} 1-0

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.03"]
[Round "4"]
[White "Ramirez, Alejandro"]
[Black "Xiong, Jeffery"]
[Result "1/2-1/2"]
[ECO "D79"]
[WhiteElo "2567"]
[BlackElo "2672"]
[Annotator "TA"]
[PlyCount "43"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,43,20,27,13,18,0,33,31,27,35,26,14,26,0,39,0,18,0,143,-60]} 1. d4 Nf6 2. c4 g6 3. g3 c6 4. Bg2 d5 5. cxd5 cxd5 6. Nf3 Bg7 7. O-O O-O 8. Nc3 b6 9. Bf4 Bb7 10. Rc1 Nc6 11. Ne5 Rc8 {D79: Fianchetto Grünfeld: Symmetrical Variation (6 0-0 c6 7 cxd5 cxd5)} 12. Qa4 (12. Nxc6 Bxc6 13. Be5 Qd7 14. e3 Rfd8 {½-½ (14) Bruzon Batista,L (2677)-Yu,Y (2715) Havana 2015}) 12... a6 13. Nxc6 Rxc6 {LiveBook: 5 Games. The position is equal.} 14. Qb3 e6 15. Na4 {[#]} Nd7 $146 ({Predecessor:} 15... b5 16. Nc5 Ba8 17. a4 bxa4 18. Qxa4 Qc8 19. Be5 {½-½ (67) Danielian,E (2488)-Ju,W (2557) Chengdu 2015}) 16. Rxc6 Bxc6 17. Rc1 Bb5 18. Nc3 Bc6 19. Na4 Bb5 20. Nc3 Bc6 $1 21. Na4 Bb7 (21... Bb5 $11 {remains equal.}) 22. Nc3 $2 ({Better is} 22. Rc7 $16 e5 23. Bxe5 (23. Rxb7 exf4 24. Qxd5 Nf6 $16) 23... Nxe5 24. Rxb7) 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.03"]
[Round "4"]
[White "Stukopin, Andrey"]
[Black "Sevian, Samuel"]
[Result "1/2-1/2"]
[ECO "C49"]
[WhiteElo "2565"]
[BlackElo "2647"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,63,15,4,62,71,62,41,35,33,45,0,6,19,18,0,0,0,17,5,23,22,25,23,28,18,38,16,16,17,102,16,15,20,16,17,10,24,27,15,37,0,0,-27]} 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 7. Ne2 Ne7 8. c3 Ba5 9. Ng3 c6 10. Ba4 Ng6 11. d4 Re8 12. Bc2 {LiveBook: 33 Games. C49: Four Knights: 4 Bb5 Bb4} d5 ({Black should play} 12... Bb6 $11) (12... h6 13. h3 Bc7 14. Re1 d5 15. Nxe5 Nxe5 16. dxe5 Nxe4 17. Nxe4 dxe4 18. Qxd8 Rxd8 19. Bxe4 Bxe5 {½-½ (31) Adhiban,B (2668)-Aronian,L (2780) Douglas 2018}) 13. Bg5 $14 exd4 {[#]} 14. Qxd4 $146 {White is slightly better.} ({Predecessor:} 14. cxd4 dxe4 15. Nxe4 Bf5 16. Nc5 Bc8 17. Qd3 Qd6 18. Bxf6 Qxf6 19. Ne5 Bb6 {1-0 (36) Ter Sahakyan,S (2577)-Davtyan,A (2303) Yerevan 2017}) 14... Bb6 15. Bxf6 Qd6 16. Qd3 {[#] Bd4 is the strong threat.} Qxf6 17. exd5 Bg4 18. Nd4 cxd5 19. Rae1 Bd7 20. Ngf5 Rxe1 21. Rxe1 {And now Ne7+! would win.} Re8 22. Rxe8+ Bxe8 23. Ne3 Bc6 24. g3 Nf8 25. b4 a6 (25... Bxd4 $11 {keeps the balance.} 26. cxd4 a6) 26. a4 (26. Nxc6 $16 Bxe3 27. Qxe3 Qxc6 28. Qd3) 26... Bxd4 $1 $11 27. cxd4 Qd6 28. b5 axb5 29. axb5 Bd7 30. Bb3 Be6 31. f4 g6 32. Qc3 {Accuracy: White = 48%, Black = 61%.} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.03"]
[Round "4"]
[White "Ali Marandi, Cemil Can"]
[Black "Naroditsky, Daniel"]
[Result "1/2-1/2"]
[WhiteElo "2530"]
[BlackElo "2616"]
[Annotator "TA"]
[PlyCount "14"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,14,-6,-12,5]} 1. Nf3 d5 2. d4 Nf6 3. Bf4 e6 4. e3 Bd6 5. Bg3 O-O 6. Nbd2 b6 7. c3 {LiveBook: 30 Games. D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} a5 $146 ({Predecessor:} 7... Ba6 8. Bxa6 Nxa6 9. Ne5 Nb8 10. f4 c5 11. Bh4 Be7 12. O-O Nfd7 13. Bxe7 Qxe7 14. Rf3 Nxe5 15. fxe5 {1-0 (29) Aronian,L (2767)-Giri,A (2782) chess.com INT 2018}) 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.03"]
[Round "4"]
[White "Ringoir, Tanguy"]
[Black "Gabuzyan, Hovhannes"]
[Result "0-1"]
[ECO "E70"]
[WhiteElo "2516"]
[BlackElo "2605"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,78,18,26,45,52,68,56,54,47,51,48,53,36,39,0,37,35,33,43,54,31,37,29,37,41,18,8,8,-12,-10,-11,-17,-20,-13,-13,-18,-32,-29,-28,-35,-78,-63,-83,-73,-84,-80,-67,-61,-127,-127,-112,-120,-223,-218,-224,-213,-220,-218,-205,-212,-497,-444,-596,-578,-541,-573]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bd3 O-O 6. Nge2 Nbd7 7. Ng3 e5 8. d5 {LiveBook: 7 Games} h5 $146 {E70: King's Indian: Miscellaneous lines with 4 e4, including 5 Nge2 and 5 Bd3 0-0 6 Nge2} ({Predecessor:} 8... Nc5 9. Bc2 a5 10. Rb1 Bd7 11. b3 Qe8 12. h3 b6 13. O-O Kh8 14. Be3 Ng8 15. Qd2 Qe7 16. a3 {½-½ (61) Pinter,J (2546)-Kostic,V (2424) Austria 2012}) 9. Bg5 a5 10. O-O c6 {White is slightly better.} 11. a3 Nc5 12. Bc2 cxd5 13. cxd5 Bd7 14. Kh1 Qb6 15. Rb1 a4 16. f3 Rfc8 17. Be3 Qa5 18. Nge2 Be8 19. Nc1 Nfd7 {[%cal Bf6d7,Bd7b6,Bb6c4,Bc4d2][%mdl 32]} 20. Nd3 Nxd3 21. Qxd3 Nb6 22. Bd2 Nc4 23. Be1 Qb6 24. Qe2 Qe3 {Strongly threatening ...Qxe2.} 25. Bd3 Qxe2 26. Nxe2 Bh6 27. Bb4 Nd2 28. Bxd6 f6 29. Bb4 Nxb1 30. Rxb1 Bf8 31. Bxf8 (31. Bc3 $15) 31... Kxf8 $17 32. Kg1 b5 33. Nc1 {[#]} (33. b4 $17 {keeps fighting.}) 33... b4 $1 $19 {[%mdl 512]} 34. axb4 {[#]} Rab8 $1 35. Na2 Bb5 36. Bxb5 Rxb5 37. Kf2 $2 (37. Rf1) 37... Rc2+ {Black is clearly winning.} 38. Ke3 Rxg2 39. Kd3 Rb8 {Accuracy: White = 40%, Black = 67%.} 0-1

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.03"]
[Round "4"]
[White "Macieja, Bartlomiej"]
[Black "Dragun, Kamil"]
[Result "0-1"]
[ECO "E90"]
[WhiteElo "2509"]
[BlackElo "2578"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,62,72,79,66,31,67,75,76,68,81,73,81,67,79,66,77,70,104,14,12,-29,-35,-46,-36,-51,15,-2,-16,-9,0,-39,82,-116,-118,-242,-233,-254,-231,-1644,-1611,-1986,-1853,-1719,-1602,-1462,-1496,-2168,-1934]} 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. h3 Na6 7. Bg5 Qe8 8. g4 c5 {E90: King's Indian: Classical: Early deviations and 6 h3} 9. Qd2 {LiveBook: 12 Games} Nb4 (9... b6 10. Rd1 cxd4 11. Nxd4 Bb7 12. f3 Nc5 13. Bh6 a6 14. Be2 Rd8 15. h4 e5 16. Nf5 Bxh6 17. Qxh6 Ne6 18. Nd5 Nxd5 19. cxd5 gxf5 20. gxf5 Kh8 21. Qf6+ Ng7 22. Rg1 Rg8 23. h5 {1-0 (23) Nepomniachtchi,I (2717)-Ponomariov,R (2756) Riga 2013}) 10. Be2 cxd4 {White is slightly better.} 11. Nxd4 Nc6 {Strongly threatening ...Nxe4!} 12. Be3 $146 Nxd4 13. Bxd4 Be6 14. g5 Nd7 $1 15. Bxg7 Kxg7 16. h4 f6 {[#]} 17. gxf6+ (17. f4 $1 $16) 17... Nxf6 $11 18. h5 Nxh5 19. Bxh5 gxh5 20. Qd4+ Rf6 (20... Kg8 $1 $15) 21. e5 dxe5 22. Qxe5 Bg4 23. Nd5 Qf7 (23... Qg6 $15 {stays ahead.}) 24. Kd2 $2 (24. O-O $16 {and life is bright.}) 24... Qe6 $17 25. Qd4 (25. Qxe6 $17 {might work better.} Rxe6 26. Nf4) 25... Qe2+ $19 {[%mdl 64] Double Attack} 26. Kc3 e5 $40 {[%mdl 128] Black wants a kill.} ({Worse is} 26... Qxf2 27. Nxf6 Qxd4+ 28. Kxd4 $11) 27. Qc5 $2 (27. Qd3 Rf3 28. Ne3 Rxf2 29. Qxe2 Bxe2 30. Rag1+ Kf7 31. Rg5) 27... Rxf2 {Black is clearly winning.} 28. Rab1 Rc8 {[%cal Ba8c8,Bc8c5,Bc5d5][%mdl 32]} 29. Qb5 b6 {( -> ...Rf3+)} 30. Kb4 Rc5 31. Qa6 {[#]} Rxd5 $1 {Accuracy: White = 34%, Black = 49%.} 0-1

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.03"]
[Round "4"]
[White "Shetty, Atulya"]
[Black "Brown, Michael William"]
[Result "1/2-1/2"]
[ECO "A20"]
[WhiteElo "2401"]
[BlackElo "2524"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,69,0,17,12,35,45,43,38,35,27,26,29,50,50,45,35,47,39,79,27,28,29,44,46,57,58,71,62,57,23,75,15,101,93,91,95,95,100,100,75,96,96,102,59,82,0,104,0,79,57,74,0]} 1. c4 e5 2. g3 Nf6 3. Bg2 c6 4. d4 exd4 5. Qxd4 Na6 6. Nf3 {A20: English Opening: 1...e5} Bc5 7. Qe5+ Be7 8. O-O O-O 9. Nc3 Re8 (9... Nc7 10. Rd1 Re8 11. Qa5 d5 12. e4 b6 13. Qa4 {0-1 (63) Fedoseev,V (2707)-Inarkiev,E (2690) Satka 2018}) 10. Qd4 Bc5 {LiveBook: 5 Games} 11. Qd3 d5 (11... Bb4 {feels hotter.} 12. Nd4 Nc5 13. Qc2 d6 14. a3 Bxc3 15. Qxc3 Nce4) 12. cxd5 Nxd5 $146 ({Predecessor:} 12... cxd5 13. Rd1 {0-1 (32) Dreux,V (1907)-Naudion,G (2051) Avoine 2011}) 13. Nxd5 Qxd5 14. Qxd5 cxd5 15. e3 $1 Bf5 16. Bd2 Rac8 17. Bc3 Be4 18. Rfd1 Nb4 19. Rd2 (19. Nd2 $16) 19... Nc2 20. Rad1 Nxe3 21. fxe3 Bxe3+ {[%mdl 64] [#] Double Attack} 22. Kf1 {Black must now prevent Re2.} Bxd2 23. Rxd2 f6 24. Nd4 {[%mdl 1024] White has compensation.} Rcd8 (24... Bxg2+ $11 25. Kxg2 b6) 25. Kf2 (25. Bh3 $16) 25... Rd7 (25... Bxg2 $11 26. Kxg2 Kf7) 26. Bh3 $16 f5 27. Bf1 a6 28. Nf3 h6 29. h4 g6 30. Ne5 Rd6 31. Nc4 Rd7 32. Ne5 Rd6 $1 33. Nc4 Rd7 $1 34. Ne3 Kf7 35. Nc4 {Accuracy: White = 54%, Black = 28%.} (35. Bc4 $16) 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.03"]
[Round "4"]
[White "Li, Zhaozhi"]
[Black "Karthik Venkataraman"]
[Result "0-1"]
[ECO "D83"]
[WhiteElo "2395"]
[BlackElo "2515"]
[Annotator "TA"]
[PlyCount "128"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,128,20,22,0,16,0,42,0,25,12,8,14,14,8,8,11,17,0,38,21,32,-9,30,24,27,-75,-79,-195,-178,-529,-529,-465,-496,-791,-766,-694,-374,-362,-342,-394,-377,-385,-380,-410,-407,-545,-247,-280,-138,-124,-131,-136,-146,-123,-57,-57,-58,-59,-60,-60,-40,-39,-47,-64,-52,-139,0,-9,-9,-8,-8,-9,0,-157,-160,-143,-151,-267,-268,-321,-316,-315,-314,-316,-316,-6203,-5306,-29975,-29976,-29976,-29977,-29977,0,0,0,0,0,0,0,-29976,-29977,-29977,0,-346,0,0,0,-29977,-29978,-29985,-29986,-29986,-29987]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Rc1 Be6 {D83: Grünfeld: 4 Bf4 Bg7 5 e3 0-0} 7. cxd5 Nxd5 8. Nxd5 Bxd5 9. Bxc7 Qd7 {LiveBook: 5 Games} 10. Bg3 Nc6 11. Ne2 Bxa2 $146 ({Predecessor:} 11... e5 12. dxe5 Nxe5 13. Nc3 Rac8 14. e4 {½-½ (44) Sjugirov,S (2678)-Navara,D (2735) Jerusalem 2015}) 12. Qa4 Bd5 13. Nf4 e5 14. dxe5 Bxe5 15. Rd1 Bxf4 $1 16. Qxf4 {White wants to play e4.} Qe6 17. Bh4 a5 18. Bf6 {Hoping for Rxd5!} Nb4 19. f3 Bb3 20. Rd6 Nd5 21. Rxd5 (21. Rxe6 $11 Nxf4 22. Rb6) 21... Bxd5 $17 22. e4 (22. Bb5 $17) 22... Rfc8 $1 $19 23. Bb5 $2 (23. h4) 23... Qb6 24. exd5 Qxb5 25. Kf2 (25. Qd2 $142 Qc5 26. Bd4 Qxd5 27. O-O) 25... Rc2+ 26. Kg3 Qxd5 27. Bc3 Qc5 28. Bd4 Qc7 29. Be5 Qb6 30. Bd4 Qe6 31. Bc3 Rc8 (31... Qe2 $142 32. Kh4 Qxg2) 32. Re1 Re2 (32... Qb6 $19 {has better winning chances. Threatens to win with ...Qf2+.} 33. Bd4 Qc7) 33. Rxe2 $17 Qxe2 34. Qf6 {[%csl Gc3][%cal Rf6h8] [#]} Rxc3 $1 35. Qxc3 {[%mdl 4096] Endgame KQ-KQ} (35. bxc3 Qe1+) 35... b5 (35... h5 $17 36. Qc8+ Kg7 37. Qc3+ Kh7) 36. Qc8+ $15 Kg7 37. Qc3+ Kh6 38. h4 Qe7 39. Kh3 b4 40. Qh8 a4 {And now ...a3 would win.} 41. g4 ({White should play} 41. Qg8 $15) 41... f6 (41... g5 $1 $17 42. hxg5+ Kxg5 43. Qxh7 Qf6) 42. Qa8 $1 $11 a3 43. bxa3 bxa3 44. Qg8 $1 f5 {White should prevent ...fxg4+.} 45. gxf5 $2 ({White should try} 45. Qb3 $11) 45... gxf5 $17 46. Qd5 Kg6 47. h5+ (47. Qc4 $17) 47... Kg5 $19 ({But not} 47... Kxh5 48. Qxf5+ Kh6 49. Qf4+ Kg6 50. Qg4+ Qg5 51. Qe6+ Qf6 52. Qg8+ Kh6 53. Qd5 $19) 48. Qd2+ Kxh5 {( -> ...Qh4+)} 49. Qf4 Kg6 {Strongly threatening ...a2.} 50. Qg3+ Kf7 {White must now prevent ...a2.} 51. Qf4 $2 (51. f4) 51... a2 52. Qxf5+ Qf6 53. Qd7+ Kg6 54. Qe8+ Kh6 $2 (54... Qf7 $1 55. Qc6+ Kg7 56. Qa8 Qe6+ 57. Kg2 Qe2+ 58. Kh3 Qf1+ 59. Kh2 a1=Q 60. Qb7+ Kf6 61. Qc6+ Ke5 62. Qe4+ Kd6 63. Qb4+ Ke6 64. Qg4+ Kd6 65. Qb4+ Kc6 66. Qe4+ Kc5 67. Qe7+ Kc4 68. Qc7+ Kb3 69. Qb7+ Kc4 70. Qc7+ Kd4 71. Qd8+ Ke3 72. Qg5+ Kxf3 73. Qf5+ Ke2 74. Qe6+ Kd2 75. Qd6+ Qd3 76. Qf4+ Qe3 77. Qb4+ Qac3 78. Qxc3+ Qxc3 79. Kh1 Ke2 80. Kg2 Qg7+ 81. Kh2 Kf3 82. Kh3 Qh6#) 55. Qe3+ $11 Kh5 56. Qe8+ Kh6 (56... Qg6 $5 57. Qe5+ $8 Qg5 58. Qe8+ Qg6 59. Qe5+ Qg5 60. Qe8+ Kh6 61. Qe6+ Qg6 62. Qxa2 Qf6 $11) 57. Qe3+ Kg6 $2 {[%mdl 8192]} (57... Kg7 $11 58. Qa7+ Kh6 59. Qxa2 Qxf3+ 60. Kh2 Qf4+ 61. Kg1 Qc1+ 62. Kg2 Qc6+ 63. Kg1 Qc1+ 64. Kg2 Qc6+ 65. Kg1 Qc1+) 58. Qe8+ $1 Qf7 $1 59. Qc6+ Kg5 $2 {[#]} (59... Kg7 $1 {mates} 60. Qa8 Qe6+ 61. Kg2 Qe2+ 62. Kh3 Qf1+ 63. Kh2 a1=Q 64. Qb7+ Kf6 65. Qc6+ Ke5 66. Qe4+ Kd6 67. Qb4+ Kc6 68. Qe4+ Kc5 69. Qe7+ Kc4 70. Qe6+ Kc3 71. Qe5+ Kd2 72. Qf4+ Ke2 73. Qc4+ Ke3 74. Qe4+ Kf2 75. Qh4+ Kxf3 76. Qh5+ Ke3 77. Qc5+ Qd4 78. Qe7+ Kd2 79. Qg5+ Qff4+ 80. Qxf4+ Qxf4+ 81. Kh3 Ke2 82. Kg2 Qg4+ 83. Kh1 Kf3 84. Kh2 Qg2#) 60. Qc1+ $2 {[%mdl 8192]} (60. f4+ $1 $11 {[%mdl 512]} Kxf4 (60... Qxf4 61. Qg2+) 61. Qc1+ Ke4 62. Qc2+ Ke3 63. Qc3+ Ke4 64. Qc2+ Ke3 65. Qc3+ Ke4 66. Qc2+) 60... Kf5 $2 (60... Qf4 $19 61. Qa3 Qh4+ 62. Kg2 Qc4 63. Qe7+ Kg6 64. Qe8+ Kf5 65. Qh5+ Kf6 66. Qh6+ Ke5 67. Qg5+ Kd6 68. Qf6+ Kc5 69. Qe5+ Kc6 70. Qf6+ Kb5 71. Qe5+ Kc6 72. Qf6+ Kb5 73. Qb2+ Ka4) 61. Qc5+ Kg6 $2 {[%mdl 8192]} (61... Kf6 $11 62. Qd4+ Kg6 63. Qg1+ Kf6 64. Qd4+ Kg6 65. Qg1+ Kf6 66. Qd4+) 62. Qc6+ {[#]} Kg7 $1 {Black mates.} 63. Qc3+ Qf6 64. Qc7+ Kg6 {Precision: White = 46%, Black = 52%.} 0-1

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.04"]
[Round "5"]
[White "Xiong, Jeffery"]
[Black "Hevia Alejano, Carlos Antonio"]
[Result "1-0"]
[ECO "C18"]
[WhiteElo "2672"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,81,54,38,46,33,31,39,-21,-6,-23,-30,-63,19,32,14,-154,-145,-153,-143,-151,-151,-259,-116,-121,-129,-120,-131,-132,0,0,11,0,0,0,0,2,21,22,30,10,21,22,27,27,212,214,193,208,251,245,283,279,466,466,555,545,545,545,737,733]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 Qc7 8. Bd3 cxd4 9. Ne2 dxc3 10. Qxg7 Rg8 11. Qxh7 Nd7 {C18: French: 3 Nc3 Bb4: Main line: 7 h4 and 7 Qg4} (11... Qxe5 12. Bf4 Qf6 13. h4 Rxg2 14. Kf1 Rg8 15. Rg1 Rh8 16. Bg5 Rxh7 17. Bxf6 Rh6 18. Bg5 Rh8 19. Bf6 Rh6 20. Bg5 Rh8 21. Bf6 {½-½ (21) Leko,P (2728)-Shirov,A (2713) Saratov 2011}) 12. Bf4 Nc5 {LiveBook: 3 Games} 13. O-O Bd7 {White is slightly better.} 14. Bg3 Nxd3 15. cxd3 (15. Qxd3 $14 Nf5 16. Rab1) 15... c2 $146 ({Predecessor:} 15... Rc8 16. Rfc1 c2 17. Bf4 Ba4 18. h3 Rg6 19. h4 {1-0 (38) Diaz,J (2410)-Sjodahl,P (2325) Andorra 1990}) 16. Rac1 Ba4 17. Nf4 {aiming for Nxd5!} Qxe5 (17... Rf8 $15) 18. Nxe6 $1 Rxg3 $1 19. Rfe1 $2 (19. fxg3 fxe6 20. Rce1 Qb2 $17) (19. Qh4 $1 $11 d4 20. Rce1 (20. hxg3 fxe6 21. Rfe1 Qg7 $11) 20... Rxg2+ 21. Kxg2 Qd5+ 22. f3 fxe6 23. Qh8+ Kd7 24. Qxa8) 19... Qf6 $17 20. Nc7+ Kd8 21. Nxa8 Rg8 22. Qh3 (22. Rxe7 $2 Qg5 $19) (22. Qh5 $17) 22... Qf5 (22... Nc6 $1 $19 {and Black stays clearly on top.} 23. Qh5 Kc8 24. Qxd5 Kb8) 23. Qh4 Qg5 24. Qxg5 Rxg5 25. f4 Rg8 (25... Rg6 $1 $17 26. Nc7 Rc6 27. Rxe7 Kxe7 28. Nxd5+ Ke6) 26. Nc7 $1 $11 Kd7 {White should prevent ...Rc8.} 27. Rxe7+ Kxe7 28. Nxd5+ {[%mdl 4096] Endgame KRB-KRN} Kd6 29. Ne3 Rc8 30. Kf2 Rc3 31. Ke2 {Strongly threatening Kd2.} b5 32. h4 {[%cal Bh2h4,Bh4h5,Bh5h6][%mdl 32]} Rxa3 33. h5 Rc3 $2 (33... Ke7 $1 $11) 34. Kd2 $1 $18 {[%cal Rd2c3]} Rc8 {[#]} 35. g4 $1 (35. Nxc2 $6 Bxc2 36. Rxc2 Rh8 $16) 35... Rh8 {[#]} 36. h6 $1 ({Not} 36. Nxc2 f5 $14) 36... b4 37. Ra1 ({Inferior is} 37. Nxc2 Rxh6 38. Nxb4 Rh2+ 39. Kc3 a5 $11) 37... Bd7 $2 (37... Bb5 {keeps fighting.} 38. Kxc2 Kc5) 38. Kxc2 {White is clearly winning.} f6 39. Ra6+ Kc5 40. Rxa7 Be6 41. Ra6 {Precision: White = 55%, Black = 27%.} 1-0

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.04"]
[Round "5"]
[White "Sevian, Samuel"]
[Black "Boros, Denes"]
[Result "1/2-1/2"]
[ECO "B03"]
[WhiteElo "2647"]
[BlackElo "2442"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 31,92,39,40,42,47,39,44,35,36,39,54,48,53,53,53,53,60,55,47,44,42,40,48,33,54,60,45,49,47,62,70,30,27,20,24,24,32,20,20,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 Bf5 6. Nc3 e6 7. Nf3 Be7 8. Be2 dxe5 9. fxe5 O-O 10. O-O Nc6 11. Be3 f6 12. exf6 Bxf6 13. Qd2 Qe7 14. Rad1 Rad8 15. Qc1 e5 {B03: Alekhine's Defence: Four Pawns Attack} 16. d5 Nd4 $1 {LiveBook: 4 Games} 17. Bxd4 exd4 {White is slightly better.} 18. Nxd4 Bg5 19. Qa1 $1 (19. Nxf5 Qc5+ 20. Kh1 Bxc1 21. Rxc1 Rde8 22. b3 Nc8 23. h3 {0-1 (39) Ladron de Guevara Pinto,P (2424)-Del Rio de Angelis,S (2525) Linares 2018}) 19... Be3+ $146 ({Predecessor:} 19... Bd7 20. Kh1 Bf4 21. g3 Be5 22. Qb1 c5 23. Ne6 Bxe6 24. dxe6 Bxc3 25. Rxf8+ Rxf8 26. bxc3 Qxe6 {½-½ (33) Conil,P-Cattoni,M France 1988}) 20. Kh1 Bxd4 21. Rxd4 Na4 22. Nxa4 Qxe2 23. Nc3 Qe3 24. Rdd1 $1 Bd3 25. Rfe1 Qd4 26. b3 Rf2 27. Ne4 Qxa1 28. Rxa1 Bxe4 $1 29. Rxe4 $14 {[%mdl 4096] Endgame KRR-KRR} c6 30. Kg1 Rc2 31. dxc6 bxc6 32. Rg4 Rdd2 33. a4 Rb2 34. Rg3 h5 {The position is equal.} 35. Re1 h4 36. Rg4 h3 37. gxh3 Rxb3 38. Rg2 Rxg2+ 39. Kxg2 $11 {KR-KR} Rb4 40. Re8+ Kh7 41. c5 Rc4 42. Re5 a5 43. h4 Rxa4 44. Re6 Rg4+ 45. Kh3 Rg6 46. Re7 Rf6 {Accuracy: White = 92%, Black = 83%.} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.04"]
[Round "5"]
[White "Naroditsky, Daniel"]
[Black "Hong, Andrew"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2616"]
[BlackElo "2390"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,101,-2,-10,0,-23,6,0,0,6,7,0,4,-14,-17,-59,-58,-58,-40,-71,-71,-71,-34,-81,-78,-89,-74,-77,-57,-78,-61,-60,-48,-66,-29,-37,0,0,0,0,0,0,0,0,0,-13,-3,-10,-8,-15,-15,-13,14,-65,-25,-22,-25,-47,0,0,0,0,156,145,158,72,100,72,67,72,159,154,169,162,366,429,458,441,29976,29977,29986,29987,29988,29989,29989,29990,29990,29991,29996,29997,29997,29998,29998,29999]} 1. d4 d5 2. Nc3 Nf6 3. Bf4 e6 4. Nb5 Bb4+ (4... Na6 5. e3 Be7 6. Nf3 O-O 7. Be2 c6 8. Nc3 c5 9. h3 Bd7 10. O-O Rc8 11. a4 Nb4 {0-1 (24) Alekseenko,K (2639)-Oparin,G (2624) Sochi 2018}) 5. c3 Ba5 6. e3 {LiveBook: 4 Games. D00: 1 d4 d5: Unusual lines} O-O 7. Bd3 c6 (7... a6 $5 {[%cal Ra6b5]} 8. Na3 Bb6 $11) 8. Nd6 $146 {The position is equal.} ({Predecessor:} 8. Na3 Nbd7 9. Nf3 Bc7 10. Qe2 Re8 11. O-O-O a5 {½-½ (55) Pasiev,R (2384)-Shandrygin,N (2169) Sochi 2015}) 8... Bc7 9. Nxc8 Qxc8 10. Bg5 {Bxf6 is the strong threat.} Nbd7 {[%cal Bb8d7,Bd7f6,Bf6e4][%mdl 32]} 11. Qf3 Re8 12. g4 e5 $36 {[%mdl 2048] White must now prevent ...e4. Black fights for an advantage.} 13. Bxf6 Nxf6 14. Bf5 Qd8 15. dxe5 Bxe5 16. Ne2 Ne4 17. Ng3 Nd6 18. Bd3 b5 19. Rd1 Nc4 20. Bxc4 bxc4 21. O-O Rb8 22. e4 Qf6 (22... dxe4 {seems wilder.} 23. Qxe4 Qf6 24. Qxc4 Rxb2 25. Rd7 a6) 23. Qxf6 Bxf6 24. exd5 cxd5 25. Rd2 g6 26. Rfd1 Re6 27. f4 {[%cal Bf2f4,Bf4f5][%mdl 32]} Be7 28. f5 Reb6 29. Rxd5 Rxb2 30. Ne4 Rxa2 31. Rd7 (31. f6 $1 $11 Bf8 32. Rd8) 31... Bf8 32. Rd8 $1 {[%cal Rd8b8]} Rab2 33. R1d4 Rxd8 34. Rxd8 $15 {[%mdl 4096] Endgame KRB-KRN} Rb5 35. h4 Kg7 $2 (35... gxf5 $11 36. Nf6+ Kg7 37. Nh5+ Kg8 38. Nf6+ Kg7 39. Nh5+ Kg8 40. Nf6+) 36. f6+ $16 {[%mdl 1024] White has strong compensation.} Kg8 {[#]} 37. Kg2 (37. Kf2 $142 $1) 37... a5 38. Ra8 h6 39. Kf3 Rd5 (39... g5 $142) 40. Kf4 Rb5 {[#]} 41. Nd2 $1 Rb6 $2 (41... g5+ 42. hxg5 hxg5+ 43. Ke3 Re5+ 44. Kd4 {[%mdl 64] Double Attack} Re2 45. Nxc4 Re6) 42. g5 $18 ({And not} 42. Nxc4 Rxf6+ 43. Ke4 Rf2 $11) 42... hxg5+ 43. hxg5 Rc6 (43... a4 $18 44. Nxc4 (44. Rxa4 Bd6+ 45. Ke4 Rb8 $16) 44... Rb7) 44. Nf3 {White mates.} a4 45. Ne5 Rd6 46. Ng4 a3 47. Nh6+ Kh7 48. Rxf8 a2 49. Nxf7 {[%csl Gf7][%cal Rf8h8]} Rxf6+ 50. gxf6 {[%csl Gf7][%cal Rf8h8]} g5+ 51. Kxg5 {Accuracy: White = 56%, Black = 30%.} 1-0

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.04"]
[Round "5"]
[White "Gabuzyan, Hovhannes"]
[Black "Bai, Jinshi"]
[Result "1/2-1/2"]
[ECO "A49"]
[WhiteElo "2605"]
[BlackElo "2572"]
[Annotator "TA"]
[PlyCount "117"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,117,9,23,53,41,41,37,39,35,43,50,61,51,51,51,52,51,58,17,50,0,0,0,0,0,43,-45,-2,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,8,8,8,8,8,8,8,8,8,8,8,8,8]} 1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. g3 c5 5. Bg2 d6 6. d4 cxd4 7. Nxd4 d5 8. O-O O-O 9. c4 dxc4 10. bxc4 Nc6 {A49: 1 d4 Nf6 2 Nf3 g6 3 g3: Anti-King's Indian systems} 11. Nxc6 bxc6 12. Nd2 {[%cal Bb1d2,Bd2b3,Bb3d4][%mdl 32] LiveBook: 4 Games} Qa5 $146 {White has an edge.} ({Predecessor:} 12... Bg4 13. Bxc6 Rc8 14. Bf3 Bxf3 15. exf3 Qd3 16. Rc1 Rfd8 17. Bc3 Bh6 18. f4 {½-½ (28) Shankland,S (2722)-Svidler,P (2756) Hoogeveen 2018}) 13. Nb3 Qh5 {With the idea ...Ng4.} 14. Bxf6 Bxf6 15. Bxc6 Rb8 16. Rc1 Qe5 17. e3 Bf5 18. Nd4 Bh3 19. Re1 Qc5 20. Bd5 Rb2 21. Qf3 h5 22. Nb3 Qb4 23. c5 Bg4 24. Qg2 (24. Qe4 $14 Qxe4 25. Bxe4) 24... Rxa2 (24... e6 $5 {[%cal Re6d5]} 25. h3 Bf5 $15) 25. h3 {[#] Threatens to win with Nd4.The position is equal.} Be6 26. c6 Bxd5 $1 27. Qxd5 {c7 is the strong threat.} e6 28. Qc4 Qxc4 29. Rxc4 Rc8 30. Rd1 Ra6 31. Rd7 ({But not} 31. c7 Kf8 $14) 31... Raxc6 32. Rxc6 Rxc6 33. Rxa7 $11 {[%mdl 4096] Endgame KRB-KRN} Rc2 34. Rd7 Be5 35. Kg2 Kg7 36. Nd2 Rc7 37. Rd3 g5 38. g4 hxg4 39. hxg4 Bf6 40. Ne4 Kg6 41. Ra3 Be7 42. Ra6 Rb7 43. Kf3 Rb2 44. Ra7 Bb4 45. Rb7 Bc3 46. Rc7 Be1 47. Rc6 Ra2 48. Rb6 Rc2 49. Kg2 Rc4 50. Kf3 $1 Rc2 51. Rd6 Ra2 52. Rd1 f5 (52... Bb4 {keeps more tension.} 53. Rd4 Rb2 54. Rc4 Be7 55. Rc7 Bf6) 53. gxf5+ exf5 54. Rxe1 {[#] Hoping for Nc5.} fxe4+ {KR-KR} 55. Kg3 Kf5 56. Rb1 Ra5 57. Rb8 Ra1 58. Rf8+ Kg6 59. Kg2 {Accuracy: White = 78%, Black = 72%.} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.04"]
[Round "5"]
[White "Cordova, Emilio"]
[Black "Bruzon Batista, Lazaro"]
[Result "1/2-1/2"]
[ECO "E08"]
[WhiteElo "2597"]
[BlackElo "2664"]
[Annotator "TA"]
[PlyCount "29"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 28,29,8,0]} 1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O Nbd7 8. Qc2 c6 9. Rd1 b6 10. Bf4 Bb7 11. Ne5 Nh5 $146 ({Predecessor:} 11... Rc8 12. Nc3 Nh5 13. Bc1 Nhf6 14. e4 Bb4 15. Bg5 Qc7 16. Nxd7 Nxd7 17. a3 Bxc3 18. Qxc3 dxc4 19. Bf4 Qd8 20. Bd6 {0-1 (76) Dominguez Perez,L (2739)-Caruana,F (2822) Saint Louis 2018}) 12. Bd2 Nhf6 13. Bf4 Nh5 14. Bd2 Nhf6 15. Bf4 {LiveBook: 301 Games} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.04"]
[Round "5"]
[White "Dragun, Kamil"]
[Black "Swiercz, Dariusz"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2578"]
[BlackElo "2649"]
[Annotator "TA"]
[PlyCount "165"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,165,-6,-7,0,1,6,4,-2,-14,-16,-47,29,26,31,28,30,32,33,31,25,25,29,31,32,20,29,31,48,48,49,49,49,49,49,48,74,67,85,60,85,85,85,65,85,85,85,85,93,93,93,93,93,93,135,135,135,135,135,135,135,93,135,135,135,93,135,93,93,93,93,93,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,131,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,0,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,135,136,136,135,93,93,93,167,93]} 1. d4 Nf6 2. Bg5 d5 3. Bxf6 exf6 4. e3 c6 5. g3 (5. Bd3 Bd6 6. Nd2 O-O 7. Qf3 a5 8. Ne2 Na6 9. c3 Nc7 10. h4 Re8 11. g4 Ne6 12. O-O-O b5 13. Rdg1 g6 14. h5 Ng5 {½-½ (43) Mamedyarov,S (2809)-Kramnik,V (2800) Moscow 2018}) 5... Bd6 6. Bg2 {D00: 1 d4 d5: Unusual lines} O-O 7. Ne2 f5 8. O-O Be6 9. b3 Nd7 {[%cal Bb8d7,Bd7f6,Bf6e4][%mdl 32]} 10. Qd3 {LiveBook: 4 Games} h5 $146 ({Predecessor:} 10... Nf6 11. c4 Qd7 12. Nbc3 Rac8 {1-0 (47) Georgiev,K (2680)-Horvath,A (2495) Fuegen 2006}) 11. h4 Nf6 12. c4 Ne4 13. c5 Bc7 14. Nd2 g5 (14... f6 $15) 15. hxg5 $11 Qxg5 16. Nf4 Kh8 17. Qe2 Nxd2 18. Qxd2 h4 19. Bf3 Kg7 20. Kg2 Rh8 21. Rh1 hxg3 22. fxg3 Rxh1 23. Rxh1 Rh8 24. Rxh8 Kxh8 25. b4 a6 26. a4 {[%cal Ba2a4,Ba4b5,Bb5b6][%mdl 32]} Qd8 27. Qb2 Kg7 28. b5 axb5 29. axb5 Qa8 30. b6 Bd8 31. Be2 Bg5 32. Qb1 Qa3 33. Kf2 Qa8 34. Qh1 Bxf4 35. gxf4 Qh8 36. Qg1+ Kf8 37. Ke1 Ke7 38. Kd2 Qa8 39. Qg5+ Kd7 40. Ke1 Qh8 41. Bf3 Qh3 42. Kf2 Qh2+ 43. Bg2 Qh8 44. Kg3 Qh7 45. Qh4 Qg8+ 46. Kf2 Qg7 47. Qh1 Kd8 48. Qa1 Bc8 49. Qa8 f6 50. Qb8 Qd7 51. Bf3 Ke7 52. Ke2 Kf8 53. Kd2 Ke7 54. Bh5 Qe6 55. Ke2 Qd7 56. Kf2 Kf8 57. Qd6+ Kg7 58. Ke1 Qe6 59. Kd2 Qd7 60. Qb8 Kf8 61. Be2 Ke7 62. Bd3 Qe6 63. Qa8 Kf8 64. Qa1 Qg8 65. Kc3 {[#] Hoping for Bxf5!} Kf7 66. Qa8 {Black must now prevent Bxf5!} Qe8 67. Kd2 Qd7 68. Qa1 Qe8 69. Qb1 Qg8 70. Qa1 ({White should play} 70. Qh1 $16) 70... Qe8 (70... Kf8 $11 {keeps the balance.}) 71. Qh1 $16 Qg8 72. Be2 Ke7 73. Qa1 Kf7 74. Qa7 Qd8 75. Bh5+ Ke7 76. Qb8 Qd7 77. Ke1 Kf8 78. Kf2 Ke7 79. Kg3 Kf8 80. Qd6+ Kg7 81. Kh4 Qe6 82. Qc7+ Qd7 (82... Kh6 $16) 83. Qxd7+ {Accuracy: White = 81%, Black = 67%.} (83. Be8 $18 Qxc7 84. bxc7) 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.04"]
[Round "5"]
[White "Karthik Venkataraman"]
[Black "Ynojosa Aponte, Felix Jose"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "2515"]
[BlackElo "2368"]
[Annotator "TA"]
[PlyCount "132"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,132,44,33,51,37,44,88,93,104,102,120,100,106,53,56,46,79,43,31,18,52,0,14,6,37,0,0,25,11,0,29,44,39,50,38,-18,74,45,20,31,32,21,150,135,154,-247,-246,-232,-217,-283,-295,-273,-274,-323,-329,-341,-321,-382,-375,-375,-370,-311,-319,-362,-380,-489,-488,-548,-541,-665,-665,-665,-657,-642,-647,-798,-756,-868,-859,-1464,-1370,-1603,-2317,-2527,-2475,-1905,-1902,-29970,-29971,-29971,-29972,-29971,-29971,-29972,-29973,-29970,-29975,-29976,-29969,-29968,-29968,-29972,-29970,-29969,-29970,-29968,-29954,-29978,-29979,-29981,-29978,-29978,-29979,-29978,-29978,-29977,-29975]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. d4 cxd4 6. Nxd4 Nxd4 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6} 7. Qxd4 a6 8. Be2 Nc6 9. Qc3 b5 {LiveBook: 10 Games} 10. a4 b4 11. Qg3 Bb7 12. Bg5 Qb8 $146 ({Predecessor:} 12... Be7 13. Bxe7 Qxe7 14. Qxg7 {1-0 (44) Areshchenko,A (2664)-Krasenkow,M (2636) Baku 2014}) 13. Bf4 $1 {[%cal Rf4b8]} d6 14. Nd2 Ne5 15. Be3 (15. Rfd1 $16) 15... h5 $14 16. f4 h4 17. Qh3 Nd7 18. Bd4 Be7 19. Bd3 (19. Rad1 $14) 19... Bf6 20. Bxf6 Qa7+ 21. Kh1 gxf6 22. Nc4 {[%cal Bd2c4,Bc4e3,Be3f5][%mdl 32]} Ke7 {[%cal Be8e7,Be7f8,Bf8f7][%mdl 32]} 23. Rad1 d5 24. exd5 Bxd5 25. Ne3 $36 {[%mdl 2048] White has the initiative.} Bc6 26. Rfe1 (26. f5 $14 e5 27. Bc4) 26... Qc7 (26... Nc5 $1 $11 {keeps the balance.}) 27. Nf5+ Kf8 28. Nxh4 {aiming for Ng6+!} Rh6 $1 29. Qg4 $1 a5 {[#]} (29... Nc5 $11) 30. Re3 $1 $16 {Rde1 is the strong threat.} Rh8 31. Rxe6 $2 ({Don't take} 31. Rg3 $6 Ke7 $16) (31. Bb5 $16 {stays on course.}) 31... fxe6 $19 {[%cal Bf7e6,Be6f5][%mdl 32]} 32. Ng6+ Kf7 33. Nxh8+ Rxh8 34. Bg6+ {[#]} Ke7 $1 35. Bf5 exf5 36. Qg7+ Ke6 37. Re1+ Be4 {[%mdl 64] Discovered Attack} 38. Qxh8 Qxc2 {[%csl Ge4][%cal Rc2g2][%mdl 64] Double Attack} 39. Qg8+ Kd6 40. b3 Bd5 41. Qg7 Kc6 42. h4 {intending h5.} Qxb3 43. h5 Qh3+ 44. Kg1 Qxh5 45. Qe7 {Black must now prevent Rc1+.} Qf7 46. Rc1+ Kb7 47. Qd6 Nb6 48. Rc5 b3 {[%cal Bb4b3,Bb3b2][%mdl 32]} 49. Rb5 Bc6 50. Rc5 Qe8 51. Qd2 Nxa4 52. Rxa5 b2 {Black mates.} 53. Qb4+ Kc8 54. Rxa4 Bxa4 55. Qxb2 Qe3+ 56. Kh1 Bc6 57. Qa2 Qxf4 58. Qe6+ Kb7 59. Qf7+ Kb6 60. Qb3+ Kc5 61. Qc3+ Qc4 62. Qe3+ Kd6 63. Kh2 Qh4+ 64. Kg1 Qe4 {[%csl Gc6][%cal Re4g2]} 65. Qa3+ Kd7 {[%csl Gc6][%cal Re4g2]} 66. Qa7+ Bb7 {Accuracy: White = 40%, Black = 71%.} 0-1

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.04"]
[Round "5"]
[White "Escalante Ramirez, Brian Sebasti"]
[Black "Quesada Perez, Yuniesky"]
[Result "1/2-1/2"]
[ECO "B30"]
[WhiteElo "2446"]
[BlackElo "2642"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,85,0,0,26,0,18,19,14,14,17,-13,-15,-17,-11,-13,-12,-16,-3,-15,-3,-15,0,0,0,-23,-15,-16,-16,-15,-6,-12,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Bc4 a6 5. a4 e6 6. Nge2 Nf6 7. O-O Nxe4 8. Nxe4 d5 9. Nxd4 cxd4 10. Bd3 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6} dxe4 11. Bxe4 {LiveBook: 7 Games} Be7 (11... Bd6 12. d3 f5 13. Bf3 O-O 14. Bd2 Qc7 15. h3 Bd7 16. Re1 Kh8 17. c4 a5 {0-1 (57) Tissir,M (2381)-Jumabayev,R (2612) Riadh 2017}) 12. c4 $146 {White has an edge.} ({Predecessor:} 12. d3 O-O 13. c3 dxc3 14. bxc3 Qc7 15. Qb3 Rb8 16. c4 Bf6 17. Rb1 Bd7 {½-½ (41) Simonian,H (2469)-Szabo,B (2317) Budapest 2012}) 12... Qc7 13. d3 O-O 14. g3 Bd7 15. f4 Bc6 16. Bf3 a5 17. b3 Rfe8 18. Ra2 Bb4 19. g4 Rad8 20. Rg2 e5 21. fxe5 Qxe5 22. Bxc6 bxc6 23. Qf3 {The position is equal.} Qe6 24. h4 {[%cal Bh2h4,Bh4h5][%mdl 32]} Rd7 25. h5 Rde7 26. g5 Qd7 27. h6 Re1 {[#] ...Rxf1+ is the strong threat.} 28. Rgf2 {[%cal Rf3f7]} Rxf1+ 29. Rxf1 gxh6 30. gxh6 {Threatening mate with Qg3+.} Re6 31. Rf2 Rg6+ 32. Rg2 Qe6 33. Bf4 Qf5 {[#] aiming for ...Bd6!} 34. Kf2 Qe6 {[%csl Gb4][%cal Re6e1]} 35. Qe4 Qxe4 36. dxe4 $11 {[%mdl 4096] Endgame KRB-KRB} f6 37. Rg3 Kf7 38. Ke2 c5 39. Rxg6 Kxg6 40. Kd3 Kh5 41. Ke2 Kg6 42. Kd3 Kh5 43. Ke2 {Accuracy: White = 77%, Black = 61%.} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.04"]
[Round "5"]
[White "Katz, Alexander"]
[Black "Le, Quang Liem"]
[Result "1/2-1/2"]
[ECO "B59"]
[WhiteElo "2433"]
[BlackElo "2714"]
[Annotator "TA"]
[PlyCount "122"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,122,0,0,-17,-8,-17,-18,2,0,37,-17,-26,-35,-13,-69,-65,-62,-60,-68,-60,-114,-48,-33,-31,-43,-38,-57,-66,-72,-61,-70,-63,-59,-14,-87,-4,-6,-22,-13,24,0,47,0,0,0,0,0,0,0,0,-55,-39,-50,-20,-39,-12,-74,33,-61,-50,-78,-22,-20,-6,-44,11,11,11,-41,-6,-15,-15,-21,-20,-23,0,0,0,0,0,-15,-14,-19,-11,-15,-11,-28,-22,-22,0,-25,-6,-6,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5 7. Nb3 Be7 8. Be3 Be6 9. Qd2 O-O 10. O-O a5 {[%cal Ba7a5,Ba5a4,Ba4a3][%mdl 32]} 11. Rad1 a4 {B59: Classical Sicilian: 6 Be2 e5 7 Nb3} 12. Nc1 a3 13. b3 Rc8 14. Bf3 $146 ({Predecessor:} 14. f4 exf4 15. Bxf4 Ne5 16. Nb5 Ng6 17. Nxd6 Bxd6 18. Qxd6 Nxf4 19. Qxf4 {0-1 (35) Kimelman,M (2273)-Samsonkin,A (2479) Toronto 2008}) 14... Nb4 15. Nd5 (15. Nd3 $14 Nxd3 16. Qxd3) 15... Bxd5 $11 16. Qxb4 Bc6 17. Ne2 (17. Bb6 $11 Qe8 18. Nd3) 17... Qe8 18. Ng3 d5 $1 19. Qa5 {[%cal Re4d5]} Ra8 ({But not} 19... dxe4 20. Be2 $11) ({Much worse is} 19... Nxe4 $6 20. Bxe4 dxe4 21. Qxe5 $11) 20. Qc7 (20. Qe1 $15 dxe4 21. Be2) 20... dxe4 ({Black should play} 20... d4 $17 21. Bd2 Bc5) 21. Be2 $1 $15 Bd8 22. Qd6 Qe7 23. Bc5 Qxd6 24. Bxd6 Re8 25. c4 g6 26. b4 {[%cal Bb3b4,Bb4b5][%mdl 32]} b6 27. Rc1 (27. Rfe1 $11) 27... Nd7 ({Black should try} 27... Re6 $17 28. c5 b5) 28. Rfd1 f5 29. Rc3 Nf8 {[%cal Bd7f8,Bf8e6,Be6c5][%mdl 32]} 30. Nf1 Be7 31. b5 (31. c5 $5 {[%cal Re2c4]} b5 32. Ne3 $14) 31... Bd7 32. Bxe5 Bb4 $36 {[%mdl 2048] Black fights for an advantage.} 33. Rb3 Bc5 34. Bd6 {[#] Hoping for Bxf8.} Ne6 35. Bxc5 ({Better is} 35. Be5 $11 Nf8 36. Bd6) 35... Nxc5 36. Rc3 Be6 37. Ne3 Kf7 38. Rd6 (38. g3 $11 {keeps the balance.}) 38... Reb8 (38... Rad8 $17 39. Rxd8 (39. Rxb6 Rd2 $17) 39... Rxd8) 39. Nc2 (39. Nd5 $14) 39... Ke7 40. Rd1 Ra4 (40... Rd8 $17 {...Rxd1+ is the strong threat.} 41. Nd4 Kf6) 41. f3 Kf6 42. Bf1 Nb7 (42... exf3 $15 43. gxf3 f4) 43. fxe4 $11 fxe4 44. Rxa3 (44. Kf2 $11) 44... Rba8 45. Rxa4 Rxa4 46. a3 Ke5 47. Kf2 Nc5 48. Rd8 Bxc4 49. Bxc4 Rxc4 {[%mdl 4096] Endgame KRN-KRN} 50. Nb4 Rc3 51. Nc6+ Kf4 {[#] White must now prevent ...Nd3+.} 52. Rf8+ Kg5 53. Ra8 Rc2+ 54. Kg3 Ne6 55. Ra4 Rc3+ 56. Kf2 {The position is equal.} Nf4 57. Rxe4 Rxa3 58. Nd4 {Strongly threatening h4+!} Nd3+ 59. Ke2 Nc1+ 60. Kf2 Nd3+ 61. Ke2 Nf4+ {Accuracy: White = 41%, Black = 37%.} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.04"]
[Round "5"]
[White "Balakrishnan, Praveen"]
[Black "Stukopin, Andrey"]
[Result "1/2-1/2"]
[ECO "B48"]
[WhiteElo "2418"]
[BlackElo "2565"]
[Annotator "TA"]
[PlyCount "165"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,165,35,25,69,67,75,72,66,28,41,0,0,-24,0,-60,-50,-42,0,-56,-45,-26,-19,-115,-115,-170,-166,-154,-88,-97,0,0,58,65,81,68,69,-29,-30,-27,-28,-27,-26,-91,-34,-222,-15,-14,-7,-33,-31,-29,-28,-101,-47,-163,-102,-185,-173,-285,-236,-235,-222,-335,-306,-451,-413,-504,-506,-556,-247,-247,-186,-187,-199,-196,-195,-222,-196,-188,-193,-241,-235,-333,-304,-294,-167,-157,-103,-103,-103,-103,-66,-66,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qd2 Nf6 8. O-O-O Bb4 9. f3 Ne7 {B48: Sicilian: Taimanov: 5 Nc3 Qc7 6 Be3 a6 without Be2} (9... O-O 10. g4 b5 11. g5 Nh5 12. Kb1 Rb8 13. Nxc6 dxc6 14. f4 c5 15. Be2 g6 16. Bxh5 gxh5 17. f5 {1-0 (27) Saric,I (2657)-Bosiocic,M (2611) Batumi 2018}) 10. Nde2 b5 11. Kb1 Ba5 12. Bf4 e5 13. Bg5 {LiveBook: 12 Games} b4 14. Na4 b3 15. Nec3 bxa2+ 16. Kxa2 $146 ({Predecessor:} 16. Ka1 Bb4 17. Bxf6 gxf6 {0-1 (36) Green,A (1951)-Beck,F (2292) Sibenik 2007}) 16... Bb4 $1 17. Kb1 Rb8 $1 18. Bxf6 gxf6 19. Nd5 (19. f4 $11) 19... Nxd5 $15 20. Qxd5 Bb7 21. Qa2 (21. Qc4 $11 Qa5 22. b3) 21... Bc6 22. Bc4 O-O {White must now prevent ...Bxa4.} 23. Bb3 (23. Bd5 $11) 23... Rb5 $1 $17 24. g4 (24. Rd5 $17 {is a better defense.}) 24... Ra5 $19 25. g5 Kh8 (25... fxg5 $142 26. Rdg1 Rb8 27. Rxg5+ Kh8) 26. gxf6 Rg8 (26... d6 $17 27. c3 Bxc3 $1 {[%mdl 512]} 28. bxc3 Rb8) 27. Rhg1 $11 Rxg1 (27... Rf8 $11) 28. Rxg1 $14 Qa7 $1 {[%cal Ra7g1]} 29. Rd1 Qb8 $1 30. Kc1 ({White should play} 30. c3 $1 $14 Bxc3 31. bxc3 Bxa4 32. Kc2 Bxb3+ 33. Qxb3 Qxb3+ 34. Kxb3 Rb5+ 35. Kc4) 30... Qd8 $40 {[%mdl 128] White needs to defend precisely.} 31. c3 Bf8 32. Bc2 Qxf6 33. Qc4 (33. Kb1 $1 $11 {keeps the balance.}) 33... Qxf3 (33... Bb5 $17 34. Qc8 Qh6+ {[%mdl 64] Double Attack} 35. Kb1 Rxa4) 34. Rf1 $2 (34. Kb1 $15) 34... Bb5 $2 (34... Qe3+ $1 $19 35. Kb1 Bxa4) 35. Rxf3 {Intending Qc8 and mate.} Bxc4 36. b3 Bh6+ 37. Kd1 Be6 {Threatens to win with ...Bg4.} 38. Rd3 {[#]} (38. Ke1 $11) 38... Rb5 ({Black should try} 38... Bf8 $1 $17 39. Rg3 Rb5) 39. Rd6 (39. c4 $1 $15 Rb8 40. Nc5) 39... a5 (39... Rb8 $19 40. b4 Rg8) 40. c4 (40. Rb6 $17 {was worth a try.} Rxb6 41. Nxb6) 40... Rb8 $19 41. Bd3 (41. Rd3 $142) 41... Rg8 ({Much less strong is} 41... Rxb3 42. Nc5 $19) 42. Bf1 Be3 43. Nc3 (43. Rd3 $142 Bd4 44. Kd2) 43... Rg1 44. Ke2 (44. Ke1 {keeps fighting.}) 44... Bd4 45. Nb5 Bc5 46. Rd3 {[#]} Rg4 (46... a4 $142 $1 {[%mdl 512] ...axb3 is the strong threat.} 47. Rg3 (47. bxa4 Bxc4) 47... a3 48. Nxa3 Rxg3 49. hxg3 Bxa3) 47. Nc3 Rf4 48. Bh3 Bd4 49. Bxe6 fxe6 ({Don't play} 49... dxe6 50. Rh3 $17) 50. Rh3 Bxc3 51. Rxc3 Rxe4+ {[%mdl 4096] Endgame KR-KR} 52. Kf2 Rf4+ 53. Kg2 (53. Ke1 $142) 53... Kg7 54. c5 Rf8 (54... e4 $142 55. c6 dxc6 56. Rxc6 Kf6) 55. Rd3 Rd8 ({Better is} 55... Rf7 56. Rg3+ Kf8) 56. Kf3 $17 Kf6 57. Ke4 Ke7 58. Rh3 Rc8 (58... d5+ $1 $15 59. Kxe5 Kd7) 59. Rxh7+ $11 {The position is equal.} Kf6 60. Rxd7 Rxc5 61. Rd3 Rb5 62. Rf3+ Ke7 63. Rd3 Kf7 64. Rf3+ Ke7 65. Rd3 Rc5 66. h4 Rb5 67. Rh3 Kd6 {( -> ...Rb4+)} 68. Rd3+ Ke7 69. Rh3 Kf6 {And now ...Rb4+ would win.} 70. Rf3+ Kg6 71. Rg3+ Kh5 72. Rg5+ Kxh4 73. Rxe5 Rb4+ 74. Kd3 Rxb3+ 75. Kd2 $1 Rb2+ 76. Kd3 Rb3+ 77. Kd2 Rb6 {aiming for ...Ra6.} 78. Rxa5 Kg4 79. Ke3 Rb1 80. Re5 Rf1 81. Ke2 Rf6 82. Ke3 Rf3+ 83. Ke4 {Accuracy: White = 42%, Black = 57%.} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.04"]
[Round "5"]
[White "Jacobson, Brandon"]
[Black "Ali Marandi, Cemil Can"]
[Result "1/2-1/2"]
[ECO "D12"]
[WhiteElo "2404"]
[BlackElo "2530"]
[Annotator "TA"]
[PlyCount "197"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,197,9,34,31,16,10,83,72,87,-14,-4,-46,-43,-38,-38,-45,-12,-7,0,0,41,34,40,44,87,44,44,73,68,45,42,45,124,126,133,127,166,166,165,108,121,106,146,29,19,26,20,18,18,18,18,18,87,18,52,19,89,81,83,77,77,82,272,228,340,241,865,891,1532,1527,1236,1157,931,0,0,0,0,0,29973,29974,29974,29975,29972,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,7,7,8,0,16,8,8,8,8,8,15,16,16,16,28,0,0,62,99,0,0,0,0,0,0,0]} 1. Nf3 d5 2. d4 Nf6 3. c4 c6 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. g3 (10. O-O-O dxc4 11. Bxc4 a6 12. Be2 Nbd7 13. Nxg6 hxg6 14. Kb1 c5 15. d5 exd5 16. Nxd5 Nxd5 17. Qxd5 {0-1 (31) Karjakin,S (2773)-Caruana,F (2822) Saint Louis 2018}) 10... O-O {LiveBook: 33 Games} 11. g4 {White is slightly better.} dxc4 12. Bxc4 c5 $146 (12... a5 $11) ({Predecessor:} 12... Nd5 13. Nxg6 hxg6 14. O-O-O Nxc3 15. Bxc3 Nd7 16. Qc2 Nb6 {½-½ (34) Laghetti,G (2469)-Voiculescu,C (2458) ICCF email 2016}) 13. Nxg6 hxg6 14. d5 (14. g5 $1 $16 {[%cal Rg5f6]} Nfd7 15. d5) 14... exd5 15. Nxd5 Nxd5 16. Bxd5 Bh4+ 17. Kf1 Nc6 18. Kg2 Ne7 19. Bc4 b5 20. Qxb5 (20. Bxb5 Rab8 $15) 20... Rab8 21. Qa5 $1 $36 {[%cal Ra5c7][%mdl 2048] White has some pressure.} Qd6 22. Bc3 {And now Rhd1 would win.} Nd5 23. Bxd5 $1 Qxd5 24. Qa6 (24. Rhd1 $5 {[%cal Rd1d5]} Qg5 25. Rd3 $16 (25. Qxa7 Qxe3 26. Rd2 Bf6 $11)) 24... Rfe8 25. Qe2 (25. Qxa7 Ra8 $15) 25... Qg5 (25... Bf6 $14) 26. e4 $16 f5 27. Rad1 Qe7 {[%cal Rf5e4]} 28. Qc4+ Kh7 {[%cal Rf5e4]} 29. Rhf1 ({Better is} 29. e5 $18) 29... fxg4 30. fxg4 Rf8 31. Rxf8 (31. e5 $16) 31... Rxf8 $11 32. Rf1 Rxf1 33. Kxf1 Qf8+ 34. Ke2 Qf2+ 35. Kd1 {Black should prevent Qe2.} Qxh2 (35... Qg1+ $11 36. Kc2 Qxh2+ 37. Kb3 Qb8+ 38. Ka3 Qb7) 36. e5 (36. Qf7 $6 Qh1+ 37. Kc2 Qxe4+ 38. Kb3 Bf6 $11) (36. Qe2 $1 $16 {[%cal Re2h2]} Qd6+ 37. Kc2) 36... Qg2 37. e6 Be7 (37... Qg1+ $11 {remains equal.} 38. Kc2 Qg2+ 39. Kb3 Qb7+ 40. Ka4 Qc6+ 41. Ka3 Be7) 38. Qe2 $16 Qd5+ 39. Kc2 c4 {[#]} 40. a3 $1 {[%cal Ba2a3,Ba3b4][%mdl 32]} Kg8 $2 (40... Qc6 $16) 41. Bb4 $18 Bxb4 (41... Bf6 $142 42. Kb1 (42. e7 Qd3+ 43. Qxd3 cxd3+ 44. Kxd3 Kf7 $16) 42... Qb5) 42. axb4 {[%mdl 4096] Endgame KQ-KQ} Qb5 $2 (42... Kf8 43. Qf2+ Kg8) 43. Kc3 a5 44. Qxc4 Qe5+ 45. Kb3 axb4 46. e7+ $2 (46. Qc8+ $18 Kh7 47. Qd7 (47. Kxb4 Qxb2+ 48. Ka5 Qd4 $14) 47... Qg3+ 48. Ka4 (48. Kxb4 Qxg4+ 49. Kc5 Qf5+ 50. Qd5 Qc2+ 51. Kd6 Qxb2 $16) 48... Qxg4 49. Qd6) 46... Kh7 $11 47. Qf7 Qe3+ 48. Kc4 ({Don't take} 48. Kxb4 $6 Qb6+ 49. Kc4 Qc6+ 50. Kd4 Qb6+ 51. Kc4 Qc6+ 52. Kd3 Qb5+ 53. Ke3 Qc5+ 54. Kf3 Qc6+ 55. Kf4 (55. Kg3 Qd6+ 56. Kg2 Qc6+ 57. Kf2 Qb6+ 58. Kf3 Qc6+ 59. Kf4 Qc7+ 60. Ke4 Qc2+ 61. Ke3 Qc5+ 62. Kd3 Qb5+ 63. Ke3 Qb6+ 64. Ke4 Qb7+ 65. Ke3 Qb6+ 66. Kf3 Qc6+ $16) 55... Qc7+ 56. Ke4 Qc2+ 57. Ke3 Qc5+ 58. Kd3 Qb5+ 59. Ke3 Qc5+ $16) 48... Qe4+ $2 {[%mdl 8192] [#]} (48... Qe2+ $11 49. Kc5 (49. Kxb4 Qxb2+ 50. Kc5 Qe5+ 51. Kc6 Qe4+ 52. Kc7 Qe5+ 53. Kc6 Qe4+ 54. Kd6 Qb4+ 55. Kc7 Qa5+ 56. Kd6 Qa6+ 57. Kc7 Qa5+ 58. Kc8 Qa8+ 59. Kc7 Qa5+ $11) 49... Qe5+ 50. Kc6 Qe4+ 51. Kd6 Qd4+ 52. Qd5 Qb6+ 53. Qc6 Qd4+ 54. Kc7 Qa7+ 55. Qb7 Qc5+ 56. Kd7 Qd4+ 57. Kc8 Qc4+ 58. Kd8 Qd4+ 59. Kc8 Qxg4+ 60. Qd7 Qf3) 49. Kc5 $1 Qe5+ 50. Kc6 Qe4+ 51. Kb6 $2 (51. Kd6 {mates} Qd4+ 52. Qd5 Qb6+ 53. Kd7 Qa7+ 54. Ke6 Qa6+ 55. Kf7 Qf1+ 56. Ke8) 51... Qd4+ $1 52. Ka6 Qd6+ 53. Kb5 Qd7+ 54. Kc4 ({Don't do} 54. Kxb4 $6 Qd6+ 55. Kc4 Qc6+ 56. Kd4 Qb6+ 57. Kc4 Qa6+ 58. Kd4 Qb6+ 59. Ke4 Qb7+ 60. Kd3 Qb5+ 61. Qc4 Qd7+ 62. Kc2 Qxe7 $16) 54... Qxg4+ 55. Kb5 Qd7+ $1 56. Ka5 Qa7+ 57. Kxb4 Qd4+ 58. Kb3 Qd3+ 59. Kb4 Qd2+ 60. Kc5 Qe3+ 61. Kb5 Qe2+ 62. Ka5 Qe5+ 63. Ka4 Qe4+ 64. b4 Qc2+ 65. Ka5 Qc7+ 66. Kb5 Qe5+ 67. Kc6 Qe4+ 68. Kc7 Qe5+ 69. Kb6 Qd6+ 70. Ka5 Qc7+ 71. Ka4 Qc2+ 72. Qb3 Qc6+ 73. b5 Qa8+ 74. Kb4 {White wants to mate with Qh3+.} Qe4+ 75. Ka5 {Intending Qh3+ and mate.} Qxe7 76. b6 Qb7 77. Qh3+ Kg8 78. Qe6+ Kh7 79. Qh3+ Kg8 80. Qb3+ Kh7 81. Qc2 Qd5+ 82. Ka6 Qa8+ 83. Kb5 Qe8+ 84. Qc6 Qe2+ 85. Qc4 Qe8+ 86. Qc6 Qe2+ 87. Kc5 {Strongly threatening Qh1+.} Qf2+ 88. Kd6 {Hoping for Qh1+.} Qf4+ 89. Kd7 Qf7+ 90. Kd8 Qf8+ $1 91. Kc7 Qe7+ 92. Kc8 Qf8+ 93. Kb7 {Qh1+ is the strong threat.} Qe7+ 94. Qc7 Qe4+ 95. Kc8 {Black must now prevent Qh2+.} Qa8+ 96. Qb8 (96. Kd7 $16) 96... Qc6+ {The position is equal.} 97. Kd8 Qf6+ 98. Kc8 {Threatens to win with Qh2+.} Qe6+ 99. Kc7 {Accuracy: White = 42%, Black = 59%.} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.04"]
[Round "5"]
[White "Yoo, Christopher Woojin"]
[Black "Ramirez, Alejandro"]
[Result "1/2-1/2"]
[ECO "C66"]
[WhiteElo "2388"]
[BlackElo "2567"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,54,0,6,0,-68,-56,-56,-56,-45,-37,-61,-59,-38,-66,-67,-30,-46,-26,-29,-24,-20,-19,-18,-22,-13,-7,-21,0,0,0,0,0,-3,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. c3 g6 6. O-O Bg7 7. Re1 O-O {C66: Ruy Lopez: Steinitz Defence} 8. h3 Re8 9. Nbd2 a6 10. Ba4 b5 11. Bb3 Na5 12. Bc2 {LiveBook: 3 Games} c5 13. d4 $146 ({White should play} 13. a3 $11) ({Predecessor:} 13. a4 Bb7 14. Nh2 d5 15. Ng4 Nh5 16. axb5 axb5 17. exd5 Qxd5 {0-1 (44) Handke,F (2525)-Howell,D (2698) Germany 2018}) 13... exd4 $15 14. cxd4 cxd4 15. Nxd4 Qb6 16. N4b3 Bb7 17. Nxa5 Qxa5 18. a4 Rac8 19. Bd3 $1 Qb4 {[%cal Rf6e4]} (19... Qb6 {with more complications.} 20. axb5 axb5 21. Bf1 Qc6 22. Qb3 Nxe4 23. Nxe4 Rxe4 24. Rxe4 Qxe4 25. Be3 Bc6) 20. axb5 axb5 {[%cal Rf6e4]} 21. Qb3 Qxb3 {The position is equal.} 22. Nxb3 Nxe4 {And now ...Nc5 would win.} 23. Bxb5 Re5 24. Be2 Nc5 25. Nxc5 Rexc5 26. Be3 Rc2 27. Rad1 Rxb2 {Accuracy: White = 86%, Black = 60%.} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "6"]
[White "Le, Quang Liem"]
[Black "Liou, Yian"]
[Result "1-0"]
[ECO "C95"]
[WhiteElo "2714"]
[BlackElo "2412"]
[Annotator "TA"]
[PlyCount "147"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 30,147,38,9,3,8,46,47,58,31,50,44,52,43,70,55,50,68,71,52,105,82,147,160,149,119,189,196,175,166,192,178,216,205,241,240,281,243,261,260,278,281,273,255,275,250,252,248,252,269,318,324,332,325,325,263,249,223,220,210,240,228,235,236,237,234,224,228,224,217,229,226,219,231,242,185,210,182,166,177,135,64,263,260,260,260,260,261,262,262,263,263,263,263,263,248,263,263,263,263,263,263,263,263,263,262,263,263,499,262,290,388,364,367,1064,1009,5498,5422,5289,708]} 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. Nbd2 Bb7 12. Bc2 Re8 13. a4 Bf8 14. Bd3 c6 15. Qc2 {C95: Closed Ruy Lopez: Breyer Variation with 10 d4} g6 16. b4 {LiveBook: 5 Games} Nb6 17. axb5 {[#] The position is equal.} axb5 $146 ({Predecessor:} 17... cxb5 18. d5 Rc8 19. Nb3 Nbxd5 20. exd5 Nxd5 21. Be4 Nxb4 22. Qd2 d5 23. Bxg6 hxg6 24. cxb4 {½-½ (35) Naroditsky,D (2634)-Amin,B (2654) Helsingor 2016}) 18. Rxa8 Bxa8 19. Nb3 Nbd7 20. Bg5 h6 21. Be3 Qc7 22. dxe5 dxe5 23. Ra1 Bb7 24. c4 bxc4 ({Better is} 24... Bxb4 $14 25. cxb5 Rc8) 25. Bxc4 c5 (25... Nb6 $142) 26. Nfd2 $16 Rc8 27. Ra7 Ra8 (27... Qb8 $16 28. Qa2 Kg7) 28. Rxa8 $18 Bxa8 29. bxc5 Bc6 30. Bd3 Qa7 31. Qc3 Qa4 32. Na5 Ne8 33. Nxc6 Qxc6 34. Nb3 Qc7 35. Bb5 Ndf6 36. Qc4 Qd8 37. Nd2 Nc7 38. Bc6 Qc8 39. Bd5 Qd7 40. c6 Qe8 41. Bb6 Bd6 42. Qd3 {[#] Hoping for Bxf7+!} Qe7 43. Bb3 Kg7 44. Qc2 Nce8 45. g3 Bc7 46. Bc5 Bd6 47. Be3 Bc7 48. Kg2 Nd6 49. Qc5 Nc8 50. Qb5 Nd6 51. Qa4 Qe8 52. Bd5 Nc8 53. Nc4 Ne7 54. Qb5 Qd8 {[%cal Rf6d5]} 55. Nb6 (55. Bb6 $16) 55... Nc8 $2 (55... Qb8 $1 $14) 56. Nxc8 Qxc8 57. Qc4 Qe8 58. Qc1 Ng8 59. Kh2 h5 60. Qb2 Nf6 61. Bg5 Qb8 62. Qb7 Qd8 63. Kg2 Qd6 64. Qb3 Qf8 65. Qe3 {Bh6+ is the strong threat.} Qd6 66. Qf3 Bd8 67. Bc1 Bb6 68. Ba3 Bc5 $2 (68... Qd8 {was worth a try.} 69. Qb3 h4) 69. Bb2 (69. Qc3 $142 Nxd5 70. Bxc5 Nxc3 71. Bxd6) 69... Bb6 70. g4 hxg4 71. hxg4 {[%cal Bh3g4,Bg4g5][%mdl 32]} Qe7 $2 (71... Bc7 72. Ba3 Qd8) 72. g5 {And now Ba3 would win.White is clearly winning.} Nh7 {[#]} 73. Bxe5+ $1 {[%mdl 512]} Kg8 (73... Qxe5 74. Qxf7+) 74. Qf4 {Accuracy: White = 71%, Black = 38%.} (74. Bb2 $142 Qxg5+ 75. Kf1) 1-0

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "6"]
[White "Bruzon Batista, Lazaro"]
[Black "Dragun, Kamil"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2664"]
[BlackElo "2578"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,103,13,13,0,18,14,4,15,15,9,10,12,12,8,16,14,23,4,48,50,35,34,41,17,41,33,45,33,95,97,135,130,133,102,118,82,166,153,158,158,156,156,181,179,185,183,147,69,100,114,105,116,233,24,32,24,24,22,22,22,22,0,13,0,22,22,22,22,22,22,22,0,0,0,0,0,22,22,22,22,22,22,22,0]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2 Qe7 6. d3 Nf6 7. Bg5 Qxe2+ 8. Bxe2 Be7 9. Nc3 c6 10. h3 Na6 {[%cal Bb8a6,Ba6c7,Bc7e6][%mdl 32]} 11. O-O-O Nc7 {LiveBook: 20 Games. C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves} 12. Rde1 (12. Rhe1) 12... Bd7 13. Bd1 Ne6 14. Bd2 O-O-O {[#]} 15. Ng5 $146 ({Predecessor:} 15. g4 Rde8 16. g5 Ng8 17. h4 h6 18. Ne4 hxg5 19. hxg5 Rxh1 20. Rxh1 {1-0 (49) Gabrielian,A (2503)-Lintchevski,D (2519) Kazan 2018}) 15... Rhf8 16. f4 Rde8 17. Nf3 Nc7 18. Ne2 Bd8 19. g4 c5 20. Ng3 Rxe1 21. Rxe1 g6 22. c3 Bc6 23. f5 Nd7 24. Ne4 Bxe4 (24... Ne8 $14) 25. dxe4 $16 Bf6 26. Bb3 $36 {[%mdl 2048] White is in control.} Bg7 27. Bf4 Ne8 28. g5 Ne5 (28... Be5 $16 29. Be3 (29. Nxe5 dxe5 30. Bg3 Nd6 $14) 29... Ng7) 29. Bxe5 Bxe5 30. Nxe5 dxe5 $18 {[%mdl 4096] Endgame KRB-KRN} 31. Rd1 $1 b5 32. Rd5 $1 c4 {[#]} 33. Bc2 $1 Nc7 34. Rd6 (34. Rxe5 $16 Kd7 35. f6) 34... Rd8 {[#]} 35. Rf6 $1 {[%cal Rf6f7]} Rd7 36. a4 a6 (36... Ne8 $16) 37. h4 $2 (37. Rb6 $18) 37... Kb7 $11 {And now ...Ne8 would win.} 38. a5 Ne8 $1 {[%cal Re8f6]} 39. Rb6+ Ka7 {The position is equal.} 40. Rc6 Rc7 $1 {[%cal Rc7c6]} 41. Rb6 Rb7 42. Rc6 {With the idea Rc8.} Rc7 $1 {[%cal Rc7c6]} 43. Rxc7+ Nxc7 {KB-KN} 44. h5 Ne8 45. h6 Nd6 46. Kd2 Kb7 47. Ke3 Kc6 48. b4 Kd7 49. Bd1 Kd8 50. Bg4 Ke7 51. Bh3 Kf8 52. Bg4 {Accuracy: White = 57%, Black = 48%.} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "6"]
[White "Swiercz, Dariusz"]
[Black "Yoo, Christopher Woojin"]
[Result "1-0"]
[ECO "C24"]
[WhiteElo "2649"]
[BlackElo "2388"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,81,42,35,44,20,72,66,72,77,83,71,68,54,112,135,191,177,152,133,150,150,197,170,268,246,210,204,304,279,297,274,267,263,410,423,529,525,605,631,488,477,447,458,465,464,568,556,910,914,913,899,841,843,783,729,1085,1091,1124,1111,1043,968,966,959,957,942]} 1. e4 e5 2. Bc4 Nf6 3. d3 c6 4. Nf3 d5 5. Bb3 Bb4+ 6. Bd2 Bxd2+ 7. Nbxd2 Nbd7 {C24: Bishop's Opening: 2...Nf6} (7... a5 8. a3 Nbd7 9. O-O a4 10. Ba2 O-O 11. Re1 Re8 12. d4 exd4 13. exd5 Rxe1+ 14. Qxe1 cxd5 15. Rb1 {0-1 (64) Aronian,L (2764)-Caruana,F (2816) Paris 2018}) 8. O-O O-O 9. Re1 d4 10. c3 {LiveBook: 3 Games} c5 $1 11. Nf1 $146 ({Predecessor:} 11. Nc4 Qe7 12. cxd4 cxd4 13. Rc1 b6 14. Ba4 Bb7 15. b4 {½-½ (35) Bancod,R (2285)-Puranik,A (2476) Subic Bay 2016}) 11... Rb8 (11... Re8 $11 {remains equal.}) 12. Ng3 $16 b5 13. cxd4 cxd4 14. Rc1 g6 15. Qd2 Ne8 ({Better is} 15... a5 $14) 16. h4 {[%cal Bh2h4,Bh4h5,Bh5h6][%mdl 32]} Bb7 (16... a5 $16) 17. h5 $18 Kg7 18. Kh2 Nd6 19. Rh1 Rh8 20. h6+ Kg8 (20... Kf8 $142 21. Rc2 Qb6) 21. Qb4 Qb6 22. Ng5 {[#] Black must now prevent Nxf7!} Rf8 (22... Re8 $142 23. Bd5 Nf6) 23. Rhf1 a5 24. Qd2 a4 25. Bd5 Nf6 (25... Bxd5 $142 26. exd5 Qd8) 26. f4 Bxd5 {White is clearly winning.} 27. exd5 Nxd5 28. fxe5 Nf5 29. N5e4 Nfe3 30. Kg1 Nxf1 31. Rxf1 Qd8 32. Qf2 f5 33. exf6 {f7+ would kill now.} Rf7 34. Qxd4 Qb6 35. Qxb6 Nxb6 36. Ng5 Kf8 37. N3e4 Rd7 38. Ne6+ Ke8 {[#]} 39. f7+ $1 {[%mdl 576] Deflection, Decoy} Rxf7 40. Nd6+ {[%mdl 64] Double Attack} Ke7 41. Nxf7 {Accuracy: White = 93%, Black = 43%.} 1-0

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "6"]
[White "Quesada Perez, Yuniesky"]
[Black "Balakrishnan, Praveen"]
[Result "1/2-1/2"]
[ECO "C24"]
[WhiteElo "2642"]
[BlackElo "2418"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,119,12,14,19,-2,28,22,21,27,26,27,30,24,24,17,32,27,22,18,29,25,35,36,47,36,40,26,33,31,41,49,29,31,53,50,43,27,20,31,79,83,70,57,86,90,80,13,18,0,0,-29,-31,-33,-19,-42,-32,-25,-30,-29,-16,-31,-8,-22,-6,-8,-4,-6,-6,-6,-7,-4,-3,-6,-4,-14,0,-4,0,0,0,0,0,0,0,-3,0,0,1,0,0,0,0,0,0,0,0,-4,-4,-4,-4,-4,-4,-4,0,0,0,0,0,0]} 1. e4 e5 2. Bc4 Nf6 3. d3 c6 4. Nf3 Be7 5. O-O d6 6. Nbd2 O-O 7. Re1 {LiveBook: 66 Games. C24: Bishop's Opening: 2...Nf6} a5 {...b5 is the strong threat.} (7... Nbd7 8. a3 Nc5 9. Ba2 Be6 10. Nc4 b5 11. Ne3 Bxa2 12. Rxa2 g6 13. Bd2 Re8 14. b4 Na4 {½-½ (48) Grischuk,A (2792)-Aronian,L (2815) Flor & Fjaere 2014}) 8. c3 Na6 (8... b5 $5 9. Bb3 $8 a4 $11) 9. Bb3 {White has an edge.} Nc5 $146 ({Predecessor:} 9... Bg4 10. h3 Bh5 11. Nf1 Nc5 12. Bc2 Qc7 13. Ng3 Bg6 14. Nh4 Rfe8 15. Nhf5 {½-½ (30) Ahvenjarvi,J (2237)-Satonen,A (2122) Finland 2013}) 10. Bc2 Qc7 11. Nf1 Re8 12. Ng3 g6 13. d4 Ne6 14. h3 Bf8 15. Be3 b6 16. a3 Bb7 17. Qd2 Bg7 18. Rad1 Rad8 19. Qc1 exd4 20. cxd4 d5 21. e5 Nd7 22. Bh6 c5 23. Bxg7 Kxg7 24. Bb1 cxd4 25. Qd2 Ndc5 26. Nxd4 Nxd4 27. Qxd4 Ne6 {[#]} 28. Qg4 $1 ({Much weaker is} 28. Qh4 $6 Qe7 $11) 28... Kh8 {[#]} 29. h4 (29. f4 $1 $16) 29... Qc4 $11 30. Qxc4 dxc4 31. Rd6 Rxd6 32. exd6 Rd8 33. Be4 Nc5 34. Bxb7 Nxb7 $15 {[%mdl 4096] Endgame KRN-KRN} 35. Ne4 $1 Kg7 36. Kf1 h6 37. g4 {The position is equal.} f5 38. gxf5 gxf5 39. Ng3 {Strongly threatening Re7+.} Nxd6 40. Re6 Kf7 41. Rxh6 b5 42. Rh7+ Kf6 43. Ra7 Rh8 44. a4 f4 45. Ne2 $1 Rxh4 46. Kg2 bxa4 47. Rxa5 Rh7 48. Rd5 Nf5 49. Kf3 Ne7 50. Ra5 Ng6 51. Nc3 Rb7 52. Nxa4 Rb4 53. Nc3 Rxb2 {aiming for ...Rb3.} 54. Nd5+ Ke6 55. Nxf4+ Nxf4 56. Kxf4 Rxf2+ 57. Ke3 Rf5 58. Rxf5 Kxf5 59. Kd4 Kg6 60. Kxc4 {Accuracy: White = 61%, Black = 69%.} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "6"]
[White "Cordova, Emilio"]
[Black "Xiong, Jeffery"]
[Result "1-0"]
[ECO "A09"]
[WhiteElo "2597"]
[BlackElo "2672"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,99,14,23,6,21,-34,-26,-47,-48,-63,-52,-54,-51,-59,-64,-62,-48,-53,-16,-13,-23,-19,-5,-70,-64,-95,-15,-7,-27,-20,-11,0,-9,-31,-29,-22,-33,-24,-21,-21,-18,-5,-8,-23,-20,-42,0,0,29,14,202,190,281,274,237,7,22,15,20,12,25,-11,-15,-18,-16,-74,715,715,701,690,768,383,342,0,606,575,570,541,575,575,575,575,29974,29975,29975,29976,29976,29977,29976,29977,29958,29956]} 1. Nf3 d5 2. c4 d4 3. b4 g5 4. h3 h6 5. Bb2 Bg7 $1 6. e3 $146 {[%cal Rf3d4] A09: Réti Opening: 1 Nf3 d5 2 c4} ({Predecessor:} 6. e4 e5 7. c5 Ne7 8. Na3 Ng6 9. h4 gxh4 10. Qa4+ Bd7 {½-½ (29) Bartel,M (2649)-Sengupta,D (2551) Warsaw 2016}) 6... e5 $1 7. c5 ({White should try} 7. Qa4+ $11 Bd7 8. Qa3) 7... Ne7 $15 8. Bc4 {Black has an edge.} O-O 9. e4 Nbc6 10. a3 b6 11. cxb6 cxb6 12. d3 Bd7 13. Nbd2 b5 14. Bxb5 Nxb4 $1 15. Bc4 Nbc6 16. h4 ({White should play} 16. a4 $11) 16... g4 $1 17. Nh2 Rb8 (17... Na5 $17 18. Nxg4 Qb6) 18. Bc1 $1 $11 h5 19. f3 $1 {[%cal Rf3g4]} Ng6 (19... g3 $5 20. Nhf1 $8 Ng6 $11) 20. g3 {[%cal Rf3g4] [#]} Nxh4 $1 {[%mdl 512]} 21. O-O {[%cal Rf3g4]} (21. gxh4 g3) 21... Ng6 $1 {White must now prevent ...h4.} 22. fxg4 h4 $1 {[%cal Rh4g3]} 23. gxh4 Qxh4 24. Ndf3 Qe7 25. Bg5 $132 {[%mdl 2048] White has counterplay} Qd6 26. Nh4 Nxh4 27. Bxh4 Na5 28. Bd5 Bc6 29. Bxc6 Qxc6 $2 (29... Nxc6 $11 30. g5 Ne7) 30. g5 $1 $18 Rb2 (30... Qg6 {keeps fighting.}) 31. Ng4 Qe6 {And now ...Nb3 would win.} 32. Qf3 $2 (32. Rf5 $1 $18 {Threatens to win with Nf6+.} Rfb8 33. Nh6+ $1 {[%mdl 512]} Bxh6 34. gxh6) 32... Rc8 33. Rab1 Rxb1 34. Rxb1 Nb3 {Strongly threatening ...Nd2.} 35. Nf6+ Bxf6 36. gxf6 {aiming for Be1.} Kf8 37. Qd1 (37. Qh5 $11 Ke8 38. Bg3) 37... Qh3 $2 {[%mdl 8192]} (37... Nc5 $17 38. Rc1 Ke8) 38. Qh5 {[%cal Rh5h8]} Ke8 39. Qxe5+ Kd7 40. Qd5+ (40. Rxb3 {is a self mate.} Rc1+ 41. Be1 Rxe1+ 42. Kf2 Rf1+ 43. Ke2 Qg2#) (40. Bg3 $142 {Threatening mate with Qd6+.} Qe6 {[#]} 41. Rxb3 $1 {[%mdl 512]} Qxe5 42. Bxe5) 40... Ke8 {...Qg4+ is the strong threat.} 41. Qe5+ $2 (41. Qxb3 Qg4+ 42. Kf1 Qh3+ 43. Ke2 Qg4+ 44. Kf1 Qh3+ 45. Ke2 Qg4+ 46. Kf1 $11) (41. Qd6 $18 {[%csl Gf6,Gh4][%cal Rd6e7]} Qe3+ 42. Bf2 Qg5+ 43. Kf1 Nd2+ 44. Ke1 (44. Ke2 Qh5+ 45. Kxd2 Qh6+ 46. Ke2 Qh5+ 47. Kf1 Qh1+ 48. Bg1 Qh3+ 49. Ke1 Qh4+ 50. Bf2 Qh1+ 51. Kd2 Qh6+ 52. Ke2 Qh5+ 53. Kf1 Qh1+ 54. Bg1 Qh3+ 55. Ke1 Qh4+ 56. Kf1 Qh3+ $11) 44... Nf3+ 45. Ke2) 41... Kf8 $2 {[%mdl 8192]} (41... Kd7 $11) 42. Qg5 {Hoping for Qg7+.} Qe6 43. Bg3 Rc3 {If only Black now had time for ...a6....} 44. Be1 Rc6 45. Ba5 {Qg7+ would kill now.} Rc3 46. Bb4+ {White mates.} Ke8 47. Bxc3 dxc3 48. Qb5+ {[%mdl 64] Double Attack} Kd8 49. Qb8+ {[%mdl 64] Double Attack} Kd7 50. Rxb3 {Accuracy: White = 61%, Black = 52%.} ({Weaker is} 50. Qxa7+ Kc8 $11) 1-0

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "6"]
[White "Bai, Jinshi"]
[Black "Naroditsky, Daniel"]
[Result "1/2-1/2"]
[ECO "E97"]
[WhiteElo "2572"]
[BlackElo "2616"]
[Annotator "TA"]
[PlyCount "37"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 30,37,27,26,33,26,35,32,31,31]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. dxe5 dxe5 8. O-O Nc6 9. Bg5 Qxd1 10. Rfxd1 Bg4 11. h3 Bxf3 {E97: King's Indian: Classical Main Line (6...e5 7 0-0 Nc6): 8 Be3 and 8 d5 Ne7, not 9 Ne1} 12. Bxf3 Nd4 13. Nd5 Nxd5 14. cxd5 c6 15. dxc6 (15. Rac1 cxd5 16. exd5 e4 17. Be3 exf3 18. Bxd4 Bxd4 19. Rxd4 {1-0 (77) Ragger,M (2695)-Saric,I (2678) Germany 2016 CBM 172 [Besenthal,K]}) 15... bxc6 16. Rac1 {LiveBook: 6 Games} a5 17. Rd2 Rfb8 18. Bd1 $146 ({Predecessor:} 18. Be3 Ra6 19. Rc5 {1-0 (37) Horvath,D (2329)-Guthrie,D (2181) Caleta 2018}) 18... Bf8 19. Be3 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "6"]
[White "Ramirez, Alejandro"]
[Black "Jacobson, Brandon"]
[Result "1-0"]
[ECO "B67"]
[WhiteElo "2567"]
[BlackElo "2404"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,77,17,14,0,5,0,-55,-29,-64,-29,-55,0,0,0,0,44,8,88,83,90,72,87,88,88,40,45,10,65,19,33,17,128,19,60,0,287,275,275,283,542,539,536,536,533,531,527,496,493,487,451,420,535,529,949,903,807,797]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. Nb3 b5 10. Bxf6 gxf6 11. f4 Qb6 12. Kb1 b4 {B67: Sicilian: Richter-Rauzer: 7...a6 8 0-0-0 Bd7, lines without 9 f4 Be7} 13. Ne2 (13. Na4 Qc7 14. Qf2 Rb8 15. f5 Ne5 16. fxe6 Bxa4 17. Qxf6 Rg8 18. Bxa6 Rxg2 19. exf7+ Qxf7 20. Qh4 {0-1 (37) Matta,V (2317)-Gupta,A (2570) Mumbai 2009}) 13... a5 {[%cal Ba6a5,Ba5a4][%mdl 32]} 14. Ned4 $146 ({White should play} 14. f5 $11) ({Predecessor:} 14. Nbd4 h5 15. g3 a4 16. Bg2 Rc8 17. Nxc6 Qxc6 18. Nd4 Qc5 19. Rhe1 Bg7 20. Re2 {0-1 (45) Pavel,S (2013)-Baltag,I (2396) Arad 2012}) 14... a4 $15 {Black is slightly better.} 15. Nc1 Na5 16. Be2 Qc5 (16... Bg7 $15) 17. Rhf1 $11 Rc8 18. Rf3 h5 19. c3 b3 (19... Rb8 $1 $11) 20. axb3 $16 axb3 21. Ndxb3 Nxb3 22. Nxb3 Qb6 23. Nc1 Bc6 24. Re3 (24. Qe3 $5 {[%cal Re3b6]} Qb7 25. Bd3 $11) 24... Be7 (24... Bh6 $11 25. Rf1 h4) 25. Bf3 Ra8 26. c4 Ra4 {[#]} (26... h4 $11) 27. Qc3 (27. e5 $1 $16 {Rb3 is the strong threat.} Bxf3 28. Rxf3) 27... O-O 28. e5 (28. Bxh5 $14 Rfa8 29. Kc2) 28... Rfa8 $2 {[%mdl 8192]} (28... dxe5 $1 $11 29. fxe5 f5) 29. exd6 $18 Ra1+ 30. Kc2 Bxd6 $2 (30... Bxf3 31. Rxf3 Bxd6 32. Qxf6 Qb4) 31. Rxd6 Ba4+ 32. b3 {[%mdl 64] Discovered Attack} Qxd6 33. Bxa8 Bxb3+ 34. Qxb3 Rxa8 35. Rg3+ Kf8 36. Nd3 Rb8 37. Qa4 {White is clearly winning.} e5 38. fxe5 fxe5 {[#]} 39. Nxe5 $1 {Accuracy: White = 43%, Black = 29%.} 1-0

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "6"]
[White "Ali Marandi, Cemil Can"]
[Black "Escalante Ramirez, Brian Sebasti"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2530"]
[BlackElo "2446"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,81,0,0,-4,6,0,6,0,10,18,0,24,37,-25,-11,-23,-10,-10,-10,-10,-10,-12,0,0,0,-10,0,-9,0,0,6,16,35,35,41,35,41,42,43,43,42,42,42,19,19,19,36,19,19,19,19,19,19,19,19,19,19,19,19,0,0,0,0,0,0,0,0,0,0,0,0,1,27,0]} 1. d4 Nf6 2. Bf4 g6 3. Nc3 d5 4. e3 Bg7 5. h4 h5 {LiveBook: 53 Games} 6. Qd2 {A45: Trompowsky Attack} c6 7. Nf3 O-O $146 ({Predecessor:} 7... Nbd7 8. Ne5 Nxe5 9. Bxe5 O-O 10. O-O-O Bh6 11. f3 {1-0 (42) Kryvoruchko,Y (2703)-Iniyan,P (2466) Sharjah 2018}) 8. Ne5 {The position is equal.} Nfd7 9. O-O-O Nxe5 10. Bxe5 f6 11. Bxb8 ({White should try} 11. Bh2 $14) 11... Rxb8 $11 12. Bd3 f5 13. Ne2 e5 14. dxe5 Bxe5 15. Nf4 Qf6 16. c4 Bxf4 17. exf4 Be6 18. Qc2 dxc4 19. Bxc4 {[#] Hoping for Rd6.} Bxc4 (19... Rbd8 {with more complications.} 20. Rhe1 Bxc4 21. Qxc4+ Kg7 22. Qc5 Rf7) 20. Qxc4+ Qf7 21. Qxf7+ Rxf7 $14 {[%mdl 4096] Endgame KRR-KRR} 22. Rhe1 Kg7 23. Kc2 Rbf8 24. Kc3 Rc7 25. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} Rff7 26. a5 Rfd7 27. Rxd7+ Rxd7 $11 {KR-KR} 28. Re8 Kf7 29. Ra8 a6 30. Rb8 Kg7 31. b4 Kf7 32. g3 Kg7 33. Kc4 Kf7 34. f3 Kg7 35. Re8 Kf7 $1 {[%cal Rf7e8]} 36. Re5 {[#] And now Kc5 would win.} Rd1 37. Kc5 Rb1 $1 38. Re3 Rc1+ 39. Kb6 Rb1 $1 40. Kxb7 c5 $1 41. Kb6 {Precision: White = 68%, Black = 67%.} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "6"]
[White "Macieja, Bartlomiej"]
[Black "Negi, Parimarjan"]
[Result "1-0"]
[ECO "A10"]
[WhiteElo "2509"]
[BlackElo "2656"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,93,29,30,29,43,36,43,36,39,35,43,31,47,10,3,4,22,0,0,0,12,0,0,0,0,0,56,52,99,105,191,186,198,8,15,8,16,0,0,0,0,0,0,0,33,45,42,58,353,-121,23,35,191,183,308,315,309,308,299,289,1093,586,536,385,550,425,491,362,519,530,5414,5414,5414,5414,5102,1209,5406,5189,5189,4132,4678,1764]} 1. c4 g6 2. e4 e5 (2... Bg7 3. d4 d6 4. Nc3 Nf6 5. Nf3 O-O 6. h3 e5 7. d5 a5 8. g4 Na6 9. Be3 Nc5 10. Nd2 c6 11. Be2 a4 12. h4 Qa5 13. f3 a3 14. Qc2 axb2 15. Qxb2 h5 16. g5 Nfd7 17. O-O f6 18. Kg2 Qd8 19. Nb3 fxg5 20. hxg5 {½-½ (67) Nepomniachtchi,I (2757)-Grischuk,A (2766) chess.com INT 2018}) 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bg7 6. Be3 {A10: English Opening: Unusual Replies for Black} Nge7 7. Nc3 O-O {LiveBook: 12 Games} 8. h4 {White has an edge.} f5 9. h5 $146 {Threatens to win with hxg6.} ({Predecessor:} 9. exf5 Bxd4 10. Bxd4 Nxf5 11. Be3 Nxe3 12. fxe3 {0-1 (46) Strikovic,A (2523)-Alvarez Pedraza,A (2460) Pamplona 2009}) 9... f4 10. Nxc6 Nxc6 11. hxg6 hxg6 12. Bd2 $1 d6 13. Qa4 Be6 14. O-O-O {[%cal Ba1d1,Bd1d2,Bd2c2,Bc2c4][%mdl 32]} a6 {Threatening ...b5!} 15. Nd5 $36 {[%mdl 2048] Black is under pressure.} b5 16. Qa3 Rb8 17. Nxf4 Rxf4 18. Bxf4 bxc4 19. Rd2 g5 (19... Qe8 $11) 20. Be3 $14 {aiming for Rh5.} Bf7 21. Rc2 Nb4 (21... Qe8 $16 {might work better.}) 22. Rxc4 $18 c5 23. Rh3 $2 (23. Bd2 $1 $18) 23... g4 $1 $11 {[%cal Rg4h3]} 24. Rg3 Qh4 25. e5 Be6 {White must now prevent ...Qh1.} 26. Be2 {[%cal Rc4g4]} Qh1+ 27. Kd2 dxe5 28. Rxb4 $1 (28. Bg5 $2 Bh6 $17) 28... Rd8+ (28... Rxb4 $5 29. b3 $8 Qa1 30. Qxa6 Bf5 $11) 29. Bd3 cxb4 30. Qxa6 Bf5 $2 {[%mdl 8192]} (30... Kf7 $1 $14) 31. Bb6 $2 ({White must play} 31. Qc4+ $18 Kh7 32. Rh3+ $1 {[%mdl 512]} gxh3 33. Qh4+ {[%mdl 64] Double Attack} Kg6 34. Qxd8 Bxd3 35. Qxd3+ Kf7 36. Qf5+ Kg8 37. Qxh3) 31... Bh6+ (31... Rd6 $17 32. Qc4+ Kh8) 32. Ke2 Rd6 $2 {[#]} ({Black should play} 32... Rxd3 $14 33. Qc4+ (33. Rxd3 Bxd3+ 34. Qxd3 Qxg2 $16) 33... Kg7 34. Rxd3 Bxd3+ 35. Qxd3 Qxg2) 33. Qc4+ $1 $18 Be6 (33... Kh8 $142) 34. Qxb4 ({Don't go for} 34. Bc5 $2 Bxc4 35. Bxc4+ Kg7 $19) 34... Qc1 {...Rxb6! is the strong threat.} 35. Be3 Bxe3 36. Rxe3 Rd4 $2 (36... Rd5 37. Qb7 (37. Qb8+ Kg7 $16) 37... Rxd3 38. Rxd3 Bc4) 37. Qb8+ Kf7 38. Rxe5 Rd7 (38... Qf4 $142 39. Qh8 Qf6 40. Qh5+ Kf8) 39. Qb6 Re7 40. Qd4 g3 (40... Rb7 {was necessary.} 41. b3 Rd7) 41. Re3 {White is clearly winning.} Bg4+ 42. Qxg4 Qxb2+ 43. Kd1 {White wants to mate with Qg6+.} Qa1+ {[#]} 44. Kd2 $1 Qxa2+ 45. Bc2 {Rf3+ would kill now.} Qa5+ 46. Kd1 {Threatening mate with Qg6+.} Qa1+ 47. Ke2 $1 {Accuracy: White = 59%, Black = 40%.} 1-0

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "6"]
[White "Hilby, Craig"]
[Black "Sevian, Samuel"]
[Result "0-1"]
[ECO "D43"]
[WhiteElo "2445"]
[BlackElo "2647"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,64,11,4,11,15,-84,-85,-99,-92,-97,-91,-93,-65,-67,-25,-20,-27,-38,-31,-46,-30,-39,-56,-58,-50,-76,-44,-171,-171,-185,-172,-178,-150,-320,-312,-403,-394,-468,-466,-481,-441,-441,-425,-584,-572,-553,-551,-873,-844,-822,-809]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 h6 6. Bxf6 Qxf6 7. Qb3 a5 8. a3 {D43: Semi-Slav: 5 Bg5 h6} (8. e3 a4 9. Nxa4 dxc4 10. Bxc4 Nd7 11. Nc3 g6 12. O-O Bg7 13. e4 O-O 14. e5 Qe7 15. Rfe1 Rd8 16. Rad1 {0-1 (40) Navara,D (2734)-Ding,L (2766) Huaian 2016}) 8... a4 {LiveBook: 11 Games} 9. Qc2 dxc4 10. e4 $146 (10. Ne4 $11 Qf5 11. g4 Qa5+ 12. Qd2) ({Predecessor:} 10. Ne4 Qd8 11. Qxc4 Nd7 12. e3 Qa5+ 13. Qc3 Qxc3+ 14. Nxc3 Bd6 15. Be2 e5 {1-0 (44) Turov,M (2575)-Kanep,M (2441) Finland 2018}) 10... b5 $17 11. Be2 Bb7 12. Rd1 Nd7 13. O-O g6 14. d5 e5 15. dxc6 Bxc6 (15... Qxc6 {[#]} 16. Nxb5 $1 {[%mdl 512]} Nb6 17. Nc3 $14) 16. Nd5 Qd8 17. Rd2 h5 18. Qc3 Bh6 19. Rdd1 Bg7 20. Nb4 Bb7 (20... Bxe4 $6 21. Qe3 $11) 21. Rd6 ({White should play} 21. Nd5 $15) 21... Qc7 $19 (21... Bxe4 22. Qe3 $14) 22. Rfd1 Nc5 23. Ng5 O-O $36 {[%mdl 2048] Keeping White busy.} ({Worse is} 23... Nxe4 24. Nxe4 Bxe4 25. Qe3 $14) 24. Qh3 $2 (24. Qe3 $17) 24... Rad8 ({Weaker is} 24... Nxe4 25. Rd7 $17) 25. Rxd8 Rxd8 26. Nd5 Bxd5 {Black is clearly winning.} 27. Rxd5 Rxd5 28. exd5 Qd8 29. d6 Bf6 30. Qe3 Qxd6 ({Stronger than} 30... Bxg5 31. Qxc5 Bf6 32. Qxb5 $11) 31. Ne4 Nxe4 {[%mdl 64] [#] Overworked Piece} 32. Qxe4 Qd2 {Accuracy: White = 31%, Black = 90%.} 0-1

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "6"]
[White "Boros, Denes"]
[Black "Stukopin, Andrey"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2442"]
[BlackElo "2565"]
[Annotator "ChessBase"]
[PlyCount "90"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:03:14]} Nf6 {[%emt 0:01:50]} 2. c4 {[%emt 0:00:40]} e6 {[%emt 0:01:13]} 3. Nf3 {[%emt 0:01:01]} d5 {[%emt 0:00:05]} 4. g3 {[%emt 0:00:10]} Bb4+ {[%emt 0:00:23]} 5. Bd2 {[%emt 0:00:09]} Be7 {[%emt 0:00:07]} 6. Bg2 {[%emt 0:00:09]} c6 {[%emt 0:00:06]} 7. Qc2 {[%emt 0:00:29]} Nbd7 {[%emt 0:00:05]} 8. a4 {[%emt 0:00:49]} a5 {[%emt 0:09:08]} 9. O-O {[%emt 0:00:33]} O-O {[%emt 0:04:13]} 10. Rc1 {[%emt 0:02:37]} Ne4 {[%emt 0:11:45]} 11. Be1 {[%emt 0:02:39]} f5 {[%emt 0:00:14]} 12. e3 {[%emt 0:02:22]} Kh8 {[%emt 0:03:17]} 13. Nbd2 {[%emt 0:01:00]} Bd6 {[%emt 0:01:35]} 14. Qd1 {[%emt 0:04:28]} Qe7 {[%emt 0:13:31]} 15. Nb3 {[%emt 0:05:42]} Bc7 {[%emt 0:03:35]} 16. Nfd2 {[%emt 0:06:03]} Ndf6 {[%emt 0:00:41]} 17. Nf3 {[%emt 0:02:42]} g5 {[%emt 0:04:22]} 18. Ne5 {[%emt 0:02:31]} g4 {[%emt 0:00:06]} 19. Nd2 {[%emt 0:00:35]} Ng5 {[%emt 0:04:41]} 20. Rab1 {[%emt 0:08:06]} Bd7 {[%emt 0:04:37]} 21. Qb3 {[%emt 0:06:52]} Rfb8 {[%emt 0:06:31]} 22. Qc2 {[%emt 0:07:46]} Nf7 {[%emt 0:01:39]} 23. f4 {[%emt 0:10:34]} gxf3 {[%emt 0:02:01]} 24. Ndxf3 {[%emt 0:00:16]} Ng4 {[%emt 0:01:18]} 25. Nxd7 {[%emt 0:05:37]} Qxd7 {[%emt 0:00:06]} 26. Qe2 {[%emt 0:00:42]} Bd6 {[%emt 0:02:11]} 27. Bc3 {[%emt 0:00:22]} Qe7 {[%emt 0:02:22]} 28. Bh3 {[%emt 0:03:00]} Rg8 {[%emt 0:01:29]} 29. Bxg4 {[%emt 0:00:30]} Rxg4 {[%emt 0:01:49]} 30. Kh1 {[%emt 0:00:41]} Ng5 {[%emt 0:01:06]} 31. cxd5 {[%emt 0:01:03]} exd5 {[%emt 0:09:27]} 32. Ne5 {[%emt 0:01:30]} Bxe5 {[%emt 0:00:05]} 33. dxe5 {[%emt 0:00:03]} Ne4 {[%emt 0:00:04]} 34. Rf1 {[%emt 0:01:15]} Rxg3 {[%emt 0:01:40]} 35. Rxf5 {[%emt 0:04:18]} Rag8 {[%emt 0:00:19]} 36. e6+ {[%emt 0:01:39]} Nxc3 {[%emt 0:00:12]} 37. bxc3 {[%emt 0:00:12]} Qxe6 {[%emt 0:00:33]} 38. Qd3 {[%emt 0:01:59]} R3g7 {[%emt 0:05:36]} 39. Rf4 {[%emt 0:02:04]} Qh3 {[%emt 0:01:10]} 40. Qd2 {[%emt 0:00:02]} c5 {[%emt 0:00:57]} 41. Qxd5 {[%emt 0:32:28]} Qxe3 {[%emt 0:30:08]} 42. Rff1 {[%emt 0:00:12]} Rg5 {[%emt 0:00:00]} 43. Rbe1 {[%emt 0:00:00]} Qxc3 {[%emt 0:00:00]} 44. Qxb7 {[%emt 0:00:00]} Qd2 {[%emt 0:00:00]} 45. Qf3 {[%emt 0:00:00]} Rf5 {[%emt 0:00:00]} 0-1

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "6"]
[White "Ynojosa Aponte, Felix Jose"]
[Black "Gabuzyan, Hovhannes"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2368"]
[BlackElo "2605"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,80,42,77,56,62,62,57,34,69,28,28,28,27,5,32,-4,-6,-2,-6,0,0,-16,-16,-16,0,-22,-11,-16,-16,-35,-28,-31,-39,-43,-44,-54,-8,-60,-12,-93,-102,-112,-136,-169,-179,-188,-181,-183,-181,-179,-196,-187,-184,-225,-237,-289,-273,-295,-279,-287,-283,-282,-247,-627,-639,-577,-596,-737,-762,-1310,-1309,-5497,-805]} 1. e4 g6 2. d4 Bg7 3. c3 d6 {[%cal Bd7d6,Bd6d5][%mdl 32]} 4. f4 d5 5. e5 h5 {LiveBook: 3 Games} 6. Nd2 $146 {B06: Modern Defence} ({Predecessor:} 6. Na3 Nh6 7. Nf3 a6 8. Nc2 Nc6 9. Ne3 Ng4 10. Be2 Nxe3 11. Bxe3 Bg4 12. O-O e6 {½-½ (76) Pastircak,M (2361)-Holemar,D (2280) Czech Republic 2017}) 6... Nh6 7. Ndf3 Bf5 8. Bd3 {White is slightly better.} Nd7 9. Ne2 e6 10. Be3 Bf8 11. h3 c5 12. O-O (12. dxc5 {feels hotter.} Bxc5 13. Ned4 Rc8 14. Be2 Be4 15. O-O) 12... c4 13. Bxf5 Nxf5 14. Bf2 h4 15. Nh2 Be7 16. Ng4 b5 17. Kh1 Rb8 18. Ng1 b4 19. cxb4 Rxb4 20. b3 $1 cxb3 21. axb3 Qb6 22. Nf3 Nb8 23. Rb1 (23. Rc1 $11) 23... Nc6 24. Ne3 (24. Nf6+ $11 Bxf6 25. exf6) 24... Ng3+ $17 25. Bxg3 hxg3 26. Ng4 Nxd4 27. Nxd4 Qxd4 ({Don't take} 27... Rxd4 28. Qf3 $17) 28. Qf3 Bh4 29. Rbd1 Qb6 30. Rd3 Kf8 31. Qd1 Kg7 32. Ne3 Re4 33. Nc2 Rc8 34. Nd4 a5 35. Ne2 Re3 36. Rf3 $2 (36. Nd4 Rc3 37. Rxc3 Rxc3 38. Qg4 Qxd4 39. Qxh4) 36... Rxf3 $19 {Black is clearly winning.} 37. Rxf3 {[#]} a4 $1 {[%mdl 512]} 38. bxa4 Qb2 39. Rf1 Rc2 40. Nxg3 Bxg3 {Accuracy: White = 29%, Black = 69%.} (40... Rxg2 $142 41. Nh5+ gxh5) 0-1

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.06"]
[Round "7"]
[White "Xiong, Jeffrey"]
[Black "Macieja, Bartlomiej"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2672"]
[BlackElo "2509"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,120,24,33,25,35,33,53,0,11,0,0,0,11,0,0,0,8,4,20,20,16,17,14,10,14,0,0,0,0,-16,-16,-27,-33,-66,-72,-65,-72,-66,-65,-86,-41,-24,-69,-41,-18,-19,-27,-34,-34,-54,-53,-76,-87,-121,0,-96,0,-29,-16,-16,-16,-18,0,-8,0,0,0,-29,-30,-30,-34,-36,-41,-69,0,0,0,-8,-8,-8,-8,-8,-8,-16,0,-497,-458,-562,-429,-1020,-1018,-1037,-981,-925,-860,-846,-756,-1147,-1153,-1139,-975,-5754,-4836,-4802,-4627,-4618,-1122]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Ne7 6. c3 h6 7. O-O Nd7 8. a4 {B12: Caro-Kann: Advance Variation} (8. Nbd2 c5 9. dxc5 Nxc5 10. Nd4 Nd7 11. Nxf5 Nxf5 12. Bd3 Ne7 13. Nf3 Nc6 14. Re1 Qc7 15. Qe2 g5 {0-1 (50) Karjakin,S (2773)-Mamedyarov,S (2801) Saint Louis 2018}) 8... c5 {LiveBook: 3 Games} 9. dxc5 Nxc5 10. Nd4 {White is slightly better.} Bh7 $146 ({Predecessor:} 10... Bg6 11. a5 a6 12. Be3 Nf5 13. Nxf5 Bxf5 14. Nd2 Be7 15. Nb3 Rc8 16. Nxc5 Bxc5 {½-½ (46) Fressinet,L (2676)-Melkumyan,H (2653) Germany 2017}) 11. Bb5+ Nd7 12. a5 a6 13. Ba4 Qc7 14. Qh5 Bg6 15. Qg4 O-O-O 16. Bxd7+ Rxd7 17. Re1 h5 18. Qf4 Nc6 19. Nxc6 Qxc6 20. Be3 Bxb1 21. Raxb1 Bc5 22. b4 Bxe3 23. Qxe3 Kb8 24. b5 axb5 25. Rb3 Rc8 26. Reb1 Qc5 27. Qg5 d4 28. cxd4 $1 ({Don't go for} 28. Rxb5 $2 Qxb5 $3 {[%mdl 512]} 29. Rxb5 dxc3 $19) 28... Qxd4 {( -> ...Qd1+!)} 29. h3 Rc2 30. Qg3 $1 h4 31. Qf3 Rc5 32. Rxb5 Rxb5 33. Rxb5 Qd1+ 34. Qxd1 Rxd1+ $17 {[%mdl 4096] Endgame KR-KR} 35. Kh2 Ka7 ({Black should play} 35... Rd5 $1 $17 {[%cal Rd5b5]} 36. Rxd5 exd5) 36. g4 g5 37. Kg2 Rd7 38. Rc5 Ka6 39. Kf3 Rd3+ 40. Kg2 Rd7 41. f4 Rd2+ 42. Kf3 Rd3+ 43. Ke4 Rxh3 44. fxg5 Rg3 ({Better is} 44... Rh1 $1 $15 45. Rc2 Kxa5 46. Ra2+ Kb5 47. Rb2+ Ka6 48. Ra2+ Kb5 49. Rb2+ Ka6 50. Ra2+ Kb5) 45. Kf4 $11 Rg2 {aiming for ...h3.} 46. Rc3 Rf2+ ({Don't do} 46... Kxa5 47. Ra3+ Kb5 48. Rh3 $17) 47. Ke4 Re2+ 48. Kf3 Rxe5 49. Rc7 Re1 {...Rg1 is the strong threat.} 50. Kg2 $2 {[%mdl 8192] [#]} (50. Kf2 $1 $11 Re5 51. Rxf7) 50... Re3 $1 $19 {[%cal Re3g3] Black is clearly winning.} 51. Rxf7 Rg3+ {[%mdl 64] Double Attack} 52. Kh2 (52. Kf2 $142 Rxg4 53. Rg7) 52... Rxg4 53. Rg7 Rg3 54. g6 {[#]} e5 $1 {[%cal Re5e4]} 55. Re7 Rxg6 56. Rxe5 Rg3 57. Rh5 Ra3 58. Rxh4 Kxa5 59. Kg2 Re3 60. Kf2 Re5 {Accuracy: White = 53%, Black = 72%.} 0-1

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "7"]
[White "Sevian, Samuel"]
[Black "Cordova, Emilio"]
[Result "0-1"]
[ECO "A62"]
[WhiteElo "2647"]
[BlackElo "2597"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,98,0,0,-7,-7,-8,0,-7,-12,-20,0,0,0,0,21,0,0,0,0,-8,0,11,17,0,10,19,24,0,8,0,0,-13,-9,-27,0,0,0,0,0,0,0,0,-5,-19,-12,-347,-363,-441,-401,-700,-439,-415,-428,-432,-431,-427,-417,-430,-392,-408,-410,-398,-416,-409,-373,-1709,-1655,-1725,-1658,-29988,-29989,-29995,-229]} 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 g6 6. Nc3 Bg7 7. Bg2 O-O 8. Nf3 d6 9. O-O Re8 10. Re1 Na6 {A62: Modern Benoni: Fianchetto Variation without early ...Nbd7} (10... Ne4 11. Nxe4 Rxe4 12. Qc2 Re8 13. e4 Bg4 14. Nd2 Na6 15. a3 b5 16. Rb1 c4 17. b4 cxb3 18. Nxb3 {1-0 (41) Grischuk,A (2767)-Svidler,P (2760) Moscow 2018}) 11. Nd2 Nc7 12. a4 b6 13. h3 Ba6 14. Rb1 Qe7 {LiveBook: 3 Games} 15. Qc2 Bb7 $146 {[%cal Rc7d5]} ({Predecessor:} 15... c4 16. Rd1 Rac8 17. e4 Nd7 18. Na2 Ne5 19. Nb4 Bb7 20. f4 Nd3 21. Nxd3 cxd3 22. Qxd3 {0-1 (30) Hulak,K (2475)-Ionescu,C (2450) Kastela 1988}) 16. Qd3 Nd7 17. Nc4 Ba6 {Hoping for ...Ne5.} 18. Bf4 Bxc4 19. Qxc4 a6 20. Qd3 Ne5 21. Qc2 b5 22. b3 Rab8 23. Red1 Rec8 24. Ne4 Ne8 25. h4 c4 26. axb5 axb5 27. Bh3 Rc7 28. Bg5 Qf8 29. b4 f5 30. Nc3 Nf6 {[%cal Be8f6,Bf6g4,Bg4f2][%mdl 32]} 31. Ra1 Nf7 32. Ra5 Qe8 33. Bd2 Re7 34. Bg2 Ng4 35. Bf3 Nfe5 {[%cal Bf7e5,Be5g4,Bg4e3][%mdl 32]} 36. Bg2 $2 {[%mdl 8192] [#]} (36. Kg2 $1 $11 {and White has nothing to worry.}) 36... Nxf2 $1 $19 {[%mdl 512]} 37. Kxf2 Ng4+ 38. Ke1 (38. Kg1 $142 Rxe2 39. Nxe2 Qxe2 40. Rf1) 38... Bxc3 {[%mdl 64] Overworked Piece} 39. Bxc3 Ne3 {[%mdl 64] Double Attack} 40. Qd2 {Bf3 is the strong threat.} Nxg2+ 41. Kf2 {White wants to play e4.} Ne3 {aiming for ...f4.} 42. Rda1 Ng4+ 43. Kf1 Re3 {And now ...Qe4 would win.} 44. Qd4 {[%csl Gc3][%cal Rd4g7] [#]} Rxc3 $1 {[%mdl 576] Deflection} 45. Qxc3 Qe4 {[%cal Re4h1]} 46. Kg1 $2 (46. Ke1 Re8 47. R5a2) 46... Ne3 {[%csl Ge3][%cal Re4g2]} ({Worse is} 46... Qxe2 47. R5a2 $11) 47. Kf2 Re8 {( -> ...Qg2+)} 48. Ra7 {[#]} Nd1+ $1 {[%mdl 576] Discovered Attack, Decoy} 49. Rxd1 Qxe2+ {[%mdl 64] Double Attack. Accuracy: White = 50%, Black = 74%.} 0-1

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "7"]
[White "Naroditsky, Daniel"]
[Black "Bruzon Batista, Lazaro"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2616"]
[BlackElo "2664"]
[Annotator "TA"]
[PlyCount "32"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,21,-13,-12,-7,-12]} 1. d4 Nf6 2. Bf4 e6 3. e3 d5 4. Nf3 Bd6 5. Bg3 O-O 6. Nbd2 c5 7. c3 Qc7 8. Bd3 Nbd7 9. O-O {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} (9. Qc2 e5 10. dxe5 Nxe5 11. Nxe5 Bxe5 12. Nf3 Bxg3 13. hxg3 h6 14. c4 Be6 15. O-O Rfd8 16. Rac1 Rac8 17. cxd5 Nxd5 {½-½ (36) Vachier Lagrave,M (2779)-Dominguez Perez,L (2739) chess.com INT 2018}) 9... Bxg3 10. hxg3 {LiveBook: 7 Games} b6 11. Rc1 {Predecessor:} Bb7 $146 12. c4 dxc4 13. Bxc4 Rfc8 14. Nb3 h6 15. Bd3 Rab8 16. Qe2 e5 {½-½ (32) Scheiba,M (2298)-Mulligan,B (2225) GER email 2014} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "7"]
[White "Gabuzyan, Hovhannes"]
[Black "Swiercz, Dariusz"]
[Result "1/2-1/2"]
[WhiteElo "2605"]
[BlackElo "2649"]
[Annotator "NA RC"]
[PlyCount "13"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. Nf3 {[%emt 0:01:05]} d5 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:09]} Nf6 {[%emt 0:00:00]} 3. Bf4 {[%emt 0:00:08]} e6 {[%emt 0:00:23]} 4. e3 {[%emt 0:00:06]} Bd6 {[%emt 0:00:05]} 5. Bg3 {[%emt 0:00:06]} O-O {[%emt 0:00:21]} 6. Nbd2 {[%emt 0:00:07]} b6 {[%emt 0:00:11]} 7. Bd3 {[%emt 0:00:31]} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.06"]
[Round "7"]
[White "Dragun, Kamil"]
[Black "Ramirez, Alejandro"]
[Result "1/2-1/2"]
[ECO "D13"]
[WhiteElo "2578"]
[BlackElo "2567"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,71,31,7,14,8,15,18,28,29,29,27,41,2,12,2,9,9,26,29,29,24,33,28,39,32,37,21,34,10,12,9,12,3,16,0,10,8,8,-79,-72,-95,-61,-181,-183,-213,-204,-352,0,-758]} 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Bf4 Nc6 5. e3 e6 6. Nc3 Bd6 7. Bxd6 Qxd6 8. Nf3 Nf6 9. Bd3 O-O 10. O-O Bd7 11. a3 Rac8 12. Rc1 Rfd8 13. b4 {[#] LiveBook: 3 Games. D13: Slav Defence: Exchange variation without ...Bf5} a6 $146 ({Predecessor:} 13... Be8 14. Qb3 Ne7 15. Ne5 Rc7 16. Na4 Rdc8 17. Rxc7 Qxc7 18. b5 Qa5 19. Qb4 Qxb4 20. axb4 b6 {0-1 (51) Paravyan,D (2629)-Dreev,A (2649) Moscow 2018}) 14. h3 Be8 15. Qb3 Rc7 16. Rc2 Rdc8 17. Rfc1 Ne7 18. Ne2 Rxc2 19. Rxc2 Rxc2 20. Qxc2 Qc6 21. Qc5 Kf8 22. Ne5 Qxc5 23. bxc5 Nd7 24. Nxd7+ (24. Bxh7 $2 Nxe5 25. dxe5 g6 $19) 24... Bxd7 $14 {[%mdl 4096] Endgame KBN-KBN} 25. Nc3 ({Not} 25. Bxh7 g6 $17) 25... h6 26. f3 Ke8 27. Kf2 Kd8 28. e4 Kc7 29. g4 g5 30. e5 b6 31. Bxa6 (31. cxb6+ $1 $11 Kxb6 32. Bf1) 31... bxc5 $17 32. dxc5 Ng6 33. a4 (33. Be2 $15) 33... Nxe5 $19 34. Ke3 Kc6 35. Kf2 (35. f4 $142 gxf4+ 36. Kxf4 Ng6+ 37. Kg3 Kxc5 38. Bb5) 35... Kc7 $2 {[#]} ({Better is} 35... Kxc5 $19 {Hoping for ...d4.} 36. Bb5 Bxb5 37. Nxb5 Kb4) 36. Bd3 $2 {[%mdl 40960] Precision: White = 27%, Black = 44%. . An unexpected result.} (36. Ke3 $11) 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "7"]
[White "Stukopin, Andrey"]
[Black "Bai, Jinshi"]
[Result "1/2-1/2"]
[ECO "C24"]
[WhiteElo "2565"]
[BlackElo "2572"]
[Annotator "RC"]
[PlyCount "64"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} e5 {[%emt 0:01:14]} 2. Bc4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:09]} 3. d3 {[%emt 0:00:00]} c6 {[%emt 0:00:07]} 4. Nf3 {[%emt 0:00:00]} d5 {[%emt 0:00:07]} 5. Bb3 {[%emt 0:00:04]} Bb4+ {[%emt 0:00:07]} 6. Bd2 {[%emt 0:00:42]} Bxd2+ {[%emt 0:00:08]} 7. Qxd2 {[%emt 0:00:08]} O-O {[%emt 0:00:25]} 8. Nxe5 {[%emt 0:01:35]} Qe7 {[%emt 0:00:16]} 9. f4 {[%emt 0:00:40]} dxe4 {[%emt 0:00:10]} 10. d4 {[%emt 0:01:06]} Be6 {[%emt 0:00:10]} 11. O-O {[%emt 0:03:34]} Bxb3 {[%emt 0:00:41]} 12. axb3 {[%emt 0:00:07]} c5 {[%emt 0:00:08]} 13. d5 {[%emt 0:08:24]} Rd8 {[%emt 0:00:30]} 14. c4 {[%emt 0:01:30]} Nc6 {[%emt 0:00:11]} 15. Nc3 {[%emt 0:12:01]} Nxe5 {[%emt 0:01:22]} 16. fxe5 {[%emt 0:00:05]} Qxe5 {[%emt 0:00:06]} 17. Qf4 {[%emt 0:00:16]} Qd4+ {[%emt 0:15:42]} 18. Kh1 {[%emt 0:00:07]} e3 {[%emt 0:00:06]} 19. Rad1 {[%emt 0:10:25]} Qxf4 {[%emt 0:07:48]} 20. Rxf4 {[%emt 0:00:03]} Rd6 {[%emt 0:00:06]} 21. Ne4 {[%emt 0:22:16]} Rb6 {[%emt 0:03:20]} 22. Nxf6+ {[%emt 0:00:26]} gxf6 {[%emt 0:00:39]} 23. Rd3 {[%emt 0:00:09]} Re8 {[%emt 0:20:08]} 24. Rf1 {[%emt 0:00:05]} a5 {[%emt 0:08:28]} 25. Re1 {[%emt 0:01:04]} e2 {[%emt 0:11:40]} 26. Kg1 {[%emt 0:00:59]} a4 {[%emt 0:02:35]} 27. Kf2 {[%emt 0:11:40]} axb3 {[%emt 0:00:24]} 28. Rxe2 {[%emt 0:00:04]} Rd8 {[%emt 0:00:12]} 29. Rg3+ {[%emt 0:17:20]} Kf8 {[%emt 0:01:11]} 30. Rh3 {[%emt 0:01:27]} Rb4 {[%emt 0:08:57]} 31. Rxh7 {[%emt 0:00:04]} Kg8 {[%emt 0:00:03]} 32. Rh3 {[%emt 0:01:21]} Rxc4 {[%emt 0:07:20]} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "7"]
[White "Karthik Venkataraman"]
[Black "Yoo, Christopher Woojin"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2515"]
[BlackElo "2388"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,99,3,-1,34,34,47,34,30,13,56,-20,14,-6,57,47,43,34,49,0,0,0,0,-7,57,22,5,16,39,33,33,0,71,67,71,64,79,0,0,0,0,0,0,0,0,0,0,0,0,-20,0,0,0,-1,0,0,42,52,111,109,179,177,176,185,335,239,495,469,528,529,1012,997,5598,5598,4918,4910,29984,29985,29985,29986,29986,29987,29978,6095,5583,4627,4627,4627,2088,1922]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. h4 O-O 6. h5 {D90: Grünfeld: 4 Nf3 Bg7 sidelines} Nxh5 7. cxd5 {LiveBook: 5 Games} e6 $146 ({Predecessor:} 7... c6 8. dxc6 Nxc6 9. e3 Bg4 10. Be2 Rc8 11. Ng5 Bxe2 12. Qxe2 Nf6 {0-1 (36) Mamedyarov,S (2757)-Nepomniachtchi,I (2721) Beijing 2013}) 8. dxe6 {White is slightly better.} Bxe6 9. e4 Bg4 10. Be3 c5 11. d5 (11. dxc5 $14 Nc6 12. Qb3) 11... Re8 $11 12. Qc2 Na6 (12... Nd7 $11) 13. Bb5 Bd7 {White must now prevent ...Bxc3+.} 14. Be2 b5 15. Nd2 c4 16. a3 Nf6 17. O-O Qb8 ({Better is} 17... h5 $11) 18. a4 Nb4 19. Qd1 bxa4 20. Nxa4 h5 21. Nc5 Bg4 (21... Bb5 $1 $11 {keeps the balance.}) 22. Nxc4 $16 {Hoping for f3.} Bxe2 23. Qxe2 Nxe4 24. Na6 ({White should play} 24. Nxe4 $16 Rxe4 25. d6) 24... Nxa6 $11 25. Rxa6 Qb5 26. Ra5 Qb4 27. Rfa1 (27. Rxa7 $2 Rxa7 28. Bxa7 Nd6 $19) 27... Rad8 28. R1a4 Qb3 29. Ra3 Qb4 30. Ra1 ({Much worse is} 30. Bxa7 {[#]} Nxf2 $1 {[%mdl 512]} 31. Re3 Rxe3 $17) 30... Qb3 31. Rc1 ({Don't blunder} 31. Bxa7 $2 Nc3 $19) 31... Rc8 {Threatens to win with ...Nd6!} 32. Ra3 Qb4 {...Nd6 is the strong threat.} 33. Qd3 ({Avoid the trap} 33. Rxa7 $2 Nd6 $19) 33... Nd6 {[%cal Rc8c4]} 34. b3 Qb5 (34... Nb5 $14 35. Ra4 Qe7) 35. Rxa7 $16 Rb8 (35... Bf8 $16 {might work better.} 36. Rd1 Qb4) 36. Ra5 $18 Qd7 37. Bf4 $36 {[%mdl 2048] White is in control.} Bf8 (37... Nb7 $142) 38. Ne5 Qb7 $2 {[#]} (38... Qd8 {was called for.}) 39. Nxg6 $1 {[%mdl 512]} Qb4 (39... fxg6 40. Bxd6) 40. Ra4 Qb5 41. Qg3 {Ne7+ would kill now.} fxg6 42. Qxg6+ Bg7 43. Bxd6 {White wants to mate with Rc7.} Qxb3 44. Ra7 {[%csl Ga7][%cal Rg6g7]} Qb2 45. Qf7+ Kh8 46. Qxh5+ Kg8 47. Qf7+ (47. Rcc7 $142 Rbd8 48. Qg6 Re7 49. Bxe7 Rb8 50. Qe6+ Kh7 51. Qf5+ Kg8 52. Rc8+ Rxc8 53. Qxc8+ Kh7 54. Qf5+ Kh8 55. Ra8+ Qb8 56. Rxb8+ Bf8 57. Bxf8 Kg8 58. Bh6#) 47... Kh8 {White is clearly winning.} 48. Qxg7+ Qxg7 49. Rxg7 Kxg7 50. Bxb8 {Accuracy: White = 63%, Black = 40%.} 1-0

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "7"]
[White "Escalante Ramirez, Brian Sebasti"]
[Black "Ynojosa Aponte, Felix Jose"]
[Result "1/2-1/2"]
[ECO "B30"]
[WhiteElo "2446"]
[BlackElo "2368"]
[Annotator "RC"]
[PlyCount "118"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:02:39]} 2. Nf3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:08]} 3. Bb5 {[%emt 0:00:00]} e6 {[%emt 0:00:03]} 4. Bxc6 {[%emt 0:00:00]} bxc6 {[%emt 0:00:02]} 5. d3 {[%emt 0:00:00]} Ne7 {[%emt 0:00:03]} 6. Qe2 {[%emt 0:00:15]} d5 {[%emt 0:01:33]} 7. O-O {[%emt 0:07:10]} Ng6 {[%emt 0:00:11]} 8. Nc3 {[%emt 0:02:22]} Bd6 {[%emt 0:06:38]} 9. Re1 {[%emt 0:08:23]} O-O {[%emt 0:00:41]} 10. b3 {[%emt 0:08:15]} d4 {[%emt 0:10:18]} 11. Na4 {[%emt 0:00:38]} e5 {[%emt 0:00:02]} 12. Nd2 {[%emt 0:08:43]} Nf4 {[%emt 0:01:20]} 13. Qf1 {[%emt 0:00:17]} Be6 {[%emt 0:01:59]} 14. Ba3 {[%emt 0:05:53]} Qg5 {[%emt 0:08:40]} 15. Nf3 {[%emt 0:04:01]} Qh5 {[%emt 0:02:03]} 16. Bc1 {[%emt 0:00:36]} g5 {[%emt 0:00:46]} 17. Kh1 {[%emt 0:11:57]} Bh3 {[%emt 0:09:02]} 18. Bxf4 {[%emt 0:00:31]} gxf4 {[%emt 0:00:12]} 19. gxh3 {[%emt 0:08:58]} Qxf3+ {[%emt 0:00:53]} 20. Qg2+ {[%emt 0:00:01]} Qxg2+ {[%emt 0:00:04]} 21. Kxg2 {[%emt 0:00:07]} f5 {[%emt 0:00:39]} 22. Kf3 {[%emt 0:14:29]} fxe4+ {[%emt 0:00:09]} 23. Rxe4 {[%emt 0:00:30]} Rf6 {[%emt 0:02:09]} 24. Rg1+ {[%emt 0:01:17]} Kf7 {[%emt 0:00:01]} 25. Rg4 {[%emt 0:01:12]} Rh6 {[%emt 0:00:04]} 26. Kg2 {[%emt 0:01:24]} Rf8 {[%emt 0:05:26]} 27. Nb2 {[%emt 0:01:48]} Ke6 {[%emt 0:02:49]} 28. Nc4 {[%emt 0:02:00]} Rf5 {[%emt 0:00:14]} 29. Nd2 {[%emt 0:02:36]} Kd5 {[%emt 0:03:09]} 30. Nf3 {[%emt 0:02:27]} c4 {[%emt 0:01:25]} 31. dxc4+ {[%emt 0:06:27]} Kc5 {[%emt 0:00:10]} 32. a3 {[%emt 0:01:32]} Kb6 {[%emt 0:01:55]} 33. h4 {[%emt 0:00:36]} Bxa3 {[%emt 0:02:38]} 34. Rxe5 {[%emt 0:00:31]} Rxe5 {[%emt 0:06:16]} 35. Nxe5 {[%emt 0:00:03]} Re6 {[%emt 0:00:02]} 36. c5+ {[%emt 0:01:51]} Kb5 {[%emt 0:02:46]} 37. Nd3 {[%emt 0:00:41]} Re2 {[%emt 0:00:12]} 38. Rxf4 {[%emt 0:00:07]} Rxc2 {[%emt 0:00:02]} 39. Rxd4 {[%emt 0:00:21]} a5 {[%emt 0:02:56]} 40. Rd7 {[%emt 0:01:18]} Rc3 {[%emt 0:04:58]} 41. f4 {[%emt 0:30:39]} Rxb3 {[%emt 0:30:31]} 42. f5 {[%emt 0:00:00]} a4 {[%emt 0:00:00]} 43. f6 {[%emt 0:00:00]} Rxd3 {[%emt 0:00:00]} 44. Rxd3 {[%emt 0:00:00]} Bxc5 {[%emt 0:00:00]} 45. f7 {[%emt 0:00:00]} a3 {[%emt 0:00:51]} 46. Rd8 {[%emt 0:00:00]} Kc4 {[%emt 0:00:00]} 47. f8=Q {[%emt 0:00:00]} Bxf8 {[%emt 0:00:00]} 48. Rxf8 {[%emt 0:00:00]} a2 {[%emt 0:00:00]} 49. Ra8 {[%emt 0:00:00]} Kb3 {[%emt 0:00:00]} 50. Kf3 {[%emt 0:00:00]} Kb2 {[%emt 0:00:00]} 51. Rb8+ {[%emt 0:02:04]} Kc2 {[%emt 0:00:00]} 52. Ra8 {[%emt 0:00:05]} Kb2 {[%emt 0:00:00]} 53. h5 {[%emt 0:01:37]} a1=Q {[%emt 0:00:07]} 54. Rxa1 {[%emt 0:00:04]} Kxa1 {[%emt 0:00:00]} 55. Ke4 {[%emt 0:00:17]} Kb2 {[%emt 0:00:00]} 56. Kd4 {[%emt 0:00:21]} Kc2 {[%emt 0:00:00]} 57. h6 {[%emt 0:00:38]} Kd2 {[%emt 0:00:00]} 58. Kc5 {[%emt 0:00:05]} Ke3 {[%emt 0:00:00]} 59. Kxc6 {[%emt 0:00:05]} Kf4 {[%emt 0:00:00]} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "7"]
[White "Wang, Justin"]
[Black "Le, Quang Liem"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "2419"]
[BlackElo "2714"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 38,108,29,27,61,24,28,16,27,28,18,23,24,18,22,12,14,0,0,0,0,-31,-35,-199,-189,-187,-157,-166,-126,-228,-205,-222,-215,-314,-294,-641,-652,-642,-619,-633,-626,-697,-687,-802,-802,-802,-796,-783,-781,-1746,-1570,-1570,-1570,-1732,-1726,-1725,-1724,-1716,-1688,-967,-956,-29991,-29979,-29992,-29993,-29993,-29994,-29994,-29995,-29995,-29995,-29998,-29999]} 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. Bxf6 gxf6 10. Nd5 f5 11. Bd3 Be6 12. c3 Bg7 13. Qh5 O-O 14. exf5 Bxd5 15. f6 e4 16. fxg7 Re8 17. Be2 Re5 18. Qh6 b4 {B33: Sicilian: Pelikan and Sveshnikov Variations} (18... Qg5 19. Qxg5 Rxg5 20. Nc2 Be6 21. O-O Rd5 22. Rfd1 Rxd1+ 23. Rxd1 Rd8 24. Nd4 Nxd4 25. Rxd4 Bxa2 26. Rxe4 {1-0 (47) Oleksienko,M (2615)-Skliarov,V (2429) Warsaw 2016}) 19. Nc2 bxc3 20. bxc3 {LiveBook: 7 Games} Qa5 {White has an edge.} 21. Qd2 Be6 22. O-O Rd5 $146 ({Predecessor:} 22... Rc5 23. Nb4 d5 24. a3 Rd8 25. Bxa6 d4 26. cxd4 Nxd4 {0-1 (58) Drygalski,W-Lew,H Poland 1991}) 23. Qe3 Rc5 24. Nb4 ({Wrong is} 24. Qxe4 $2 Bf5 $19) 24... Nxb4 25. cxb4 Qxb4 26. Rab1 Qa4 27. Rb6 Rd5 28. Rfb1 Rc8 29. h4 ({Much worse is} 29. Rxa6 Qc2 $17) 29... Qd4 $1 30. Qf4 $2 {[#]} (30. Bxa6 $15 Qxe3 31. fxe3) 30... Qd2 $1 $19 {[%cal Rd2f4]} 31. Qe3 ({Of course not} 31. Qxe4 Re5 $19) 31... Qxe3 32. fxe3 a5 {[%cal Ba6a5,Ba5a4][%mdl 32]} 33. R1b2 (33. a4 $17) 33... Kxg7 34. Kf2 Rc3 35. g4 (35. a4 $142) 35... a4 36. R2b5 $2 {[#]} (36. a3) 36... Rxb5 37. Bxb5 {[%mdl 4096] Endgame KRB-KRB} Rc2+ 38. Kg3 Rb2 39. Kf4 a3 40. Rxd6 {and the idea Bd7 leaves White hopeful.} Rxb5 {KRB-KR} 41. Ra6 Rb2 42. Rxa3 Rh2 43. h5 Rxa2 44. Rc3 Rg2 45. Kxe4 Rxg4+ 46. Kf3 Rg5 47. Kf4 Rxh5 48. Rc1 Rh4+ 49. Kg5 Rg4+ {Black mates.} 50. Kh5 f5 {[%cal Re6f7]} 51. Rc7+ Bf7+ 52. Rxf7+ Kxf7 53. e4 Kf6 54. exf5 Rf4 {Accuracy: White = 31%, Black = 88%.} 0-1

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "7"]
[White "Balakrishnan, Praveen"]
[Black "Ali Marandi, Cemil Can"]
[Result "1-0"]
[ECO "C07"]
[WhiteElo "2418"]
[BlackElo "2530"]
[Annotator "ChessBase"]
[PlyCount "69"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:02:35]} e6 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:09]} d5 {[%emt 0:00:00]} 3. Nd2 {[%emt 0:00:05]} c5 {[%emt 0:00:00]} 4. exd5 {[%emt 0:00:07]} Qxd5 {[%emt 0:00:00]} 5. Ngf3 {[%emt 0:00:21]} cxd4 {[%emt 0:00:00]} 6. Bc4 {[%emt 0:00:14]} Qd7 {[%emt 0:00:05]} 7. O-O {[%emt 0:00:34]} Nc6 {[%emt 0:00:25]} 8. Nb3 {[%emt 0:00:24]} a6 {[%emt 0:00:16]} 9. Nbxd4 {[%emt 0:00:41]} Nxd4 {[%emt 0:00:03]} 10. Nxd4 {[%emt 0:00:12]} Qc7 {[%emt 0:00:05]} 11. Qe2 {[%emt 0:03:01]} Bd6 {[%emt 0:00:10]} 12. Nf3 {[%emt 0:17:24]} Ne7 {[%emt 0:01:32]} 13. Bd3 {[%emt 0:18:49]} Bd7 {[%emt 0:01:14]} 14. c4 {[%emt 0:04:03]} Ng6 {[%emt 0:01:48]} 15. g3 {[%emt 0:05:56]} O-O-O {[%emt 0:05:59]} 16. Bd2 {[%emt 0:14:58]} Rhe8 {[%emt 0:04:21]} 17. c5 {[%emt 0:06:31]} Bf8 {[%emt 0:00:17]} 18. Qe1 {[%emt 0:01:34]} Bc6 {[%emt 0:18:15]} 19. Ba5 {[%emt 0:02:51]} Qd7 {[%emt 0:03:54]} 20. Bxg6 {[%emt 0:10:11]} Bxf3 {[%emt 0:01:31]} 21. Be4 {[%emt 0:02:31]} Bxe4 {[%emt 0:00:15]} 22. Qxe4 {[%emt 0:00:05]} Qd5 {[%emt 0:01:43]} 23. Qf4 {[%emt 0:05:45]} e5 {[%emt 0:02:42]} 24. Qg4+ {[%emt 0:02:00]} Rd7 {[%emt 0:00:10]} 25. c6 {[%emt 0:00:31]} bxc6 {[%emt 0:00:11]} 26. Rad1 {[%emt 0:00:42]} Qe6 {[%emt 0:06:02]} 27. Qe2 {[%emt 0:00:06]} Bc5 {[%emt 0:01:38]} 28. Qxa6+ {[%emt 0:00:47]} Kb8 {[%emt 0:01:36]} 29. Rxd7 {[%emt 0:00:20]} Qxd7 {[%emt 0:00:02]} 30. Rc1 {[%emt 0:00:49]} Qd4 {[%emt 0:02:19]} 31. Be1 {[%emt 0:00:11]} Re6 {[%emt 0:03:39]} 32. Rc3 {[%emt 0:00:31]} Qe4 {[%emt 0:00:58]} 33. Rb3+ {[%emt 0:00:27]} Kc7 {[%emt 0:00:04]} 34. Qa5+ {[%emt 0:00:06]} Kd7 {[%emt 0:00:35]} 35. Rb7+ {[%emt 0:00:12]} 1-0

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "7"]
[White "Santarius, Erik"]
[Black "Quesada Perez, Yuniesky"]
[Result "0-1"]
[ECO "E07"]
[WhiteElo "2393"]
[BlackElo "2642"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,94,0,0,-14,-19,-46,-52,-58,-41,-64,-40,-42,-50,-52,-29,-64,-27,-104,-50,-117,-106,-162,-121,-145,0,0,0,-46,-67,-116,-155,-143,-124,-116,-129,-191,-166,-180,-210,-189,-166,-360,-91,-101,-108,-93,-113,-111,-147,-132,0,-59,-41,-327,-152,-327,-327,-306,-302,-265,-298,-307,-305,-550,-508,-506,-536,-675,-670,-668,-633,-1038,-995,-928,-928]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O c6 7. Nc3 Nbd7 8. Qd3 b6 9. cxd5 cxd5 10. Bf4 a6 11. a4 Bb7 12. Nd2 $146 {E07: Closed Catalan: Main Line (5 Nf3 0-0 6 0-0 Nbd7)} ({Predecessor:} 12. Rfc1 Rc8 13. Rc2 Bb4 14. Rac1 Qe7 15. Na2 Bd6 16. Ne5 Rxc2 17. Rxc2 Nh5 18. e3 Nxf4 19. gxf4 Rc8 20. Rxc8+ Bxc8 {1-0 (36) Hernandez Carmenates,H (2582)-Al Sayed,M (2470) Barcelona 2008}) 12... Nh5 13. Qf3 Nxf4 14. gxf4 {Black is slightly better.} g6 15. Nc4 Rc8 {[%cal Ba8c8,Bc8c4,Bc4b4][%mdl 32]} 16. Ne5 Nxe5 17. fxe5 Rc4 18. Qd3 Qc7 19. Nd1 (19. e3 $11) 19... Rc8 (19... Rc2 $17 20. Rb1 Qc4) 20. Ne3 (20. Nc3 $1 $15) 20... Rb4 $17 21. Qd2 (21. Rfb1 $17) 21... Qd7 22. Ng4 Qd8 (22... Rxa4 23. Nf6+ Bxf6 24. exf6 $14) ({Black should try} 22... Rcc4 $17 23. e3 a5) 23. Nf6+ $1 $11 (23. Nh6+ Kg7 $17) 23... Kh8 {White must now prevent ...a5.} 24. Ra3 a5 25. Nxh7 Kxh7 26. Rh3+ Kg8 27. Qh6 {[%csl Gh3][%cal Rh6h8] [#]} Bf6 $1 {[%cal Rf6g7][%mdl 512]} 28. Qh7+ (28. exf6 Qxf6) 28... Kf8 {And now ...Bg7 would win.} 29. Rf3 Bg7 30. Qxg6 {[%csl Gf3][%cal Rg6f7]} Rc7 $1 31. Bh3 $2 (31. Rd1) 31... Bc8 $2 (31... Rxb2 $2 32. Bxe6 Qe8 33. Kh1 $18) (31... Rxd4 $19 {is more deadly.} 32. Bxe6 Qe8 {[%mdl 64] Double Attack}) 32. Kh1 $17 {Strongly threatening Rg1.} Qh4 $1 (32... Rxb2 $2 33. Rg1 $18) 33. Rg1 Qh6 34. Qd3 Rc1 35. Bf1 Ke7 (35... Rxa4 $17 {...Raa1 is the strong threat.} 36. e3 Raa1) 36. e3 (36. Rh3 $1 $11 Qf4 {[%mdl 64] Double Attack} 37. Rf3) 36... Qh5 $15 37. Be2 $2 {[%mdl 8192]} (37. Rfg3 $1 $15 Bxe5 38. Be2 Rxg1+ 39. Kxg1) 37... Rxg1+ $19 38. Kxg1 {[#]} Qg6+ $1 ({Resist} 38... Rxb2 39. Qa3+ Rb4 40. Qd3 $19) ({Not} 38... Rxa4 39. Rg3 $11) 39. Qxg6 fxg6 40. Bd3 {[#]} Bd7 $1 {[%cal Rd7a4]} ({Inferior is} 40... Rxb2 41. Bxg6 Kd8 42. Rf7 $11) 41. Bxg6 Be8 42. Bh7 $2 (42. Bxe8 Kxe8 43. h4) 42... Rxb2 {Black is clearly winning.} 43. Rg3 Bf8 44. h4 Bxa4 45. h5 Be8 46. Bg6 a4 47. e4 Rb3 {Accuracy: White = 37%, Black = 54%.} 0-1

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.05"]
[Round "7"]
[White "Taghizadeh, Rayan"]
[Black "Prohaszka, Peter"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "2298"]
[BlackElo "2613"]
[Annotator "TA"]
[PlyCount "248"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,248,13,13,8,31,32,37,21,22,10,27,0,0,-9,-11,-10,-8,-17,0,0,0,-11,0,0,22,-31,-29,-75,-75,-77,-73,-78,-71,-75,-65,-75,-62,-62,-62,-69,-62,-72,-66,-98,-105,-159,-102,-256,-235,-255,-206,-225,-202,-227,-229,-212,-227,-213,-108,-172,-149,-197,-148,-206,-164,-324,-233,-259,-255,-309,-175,-304,-194,-351,-154,-164,-164,-317,-306,-262,-199,-199,-176,-247,-203,-231,-233,-223,-165,-160,-102,-212,-52,-204,-214,-202,-165,-202,-97,-83,-40,-46,-42,-52,-42,-42,-42,-42,-29,-42,-28,-28,-28,-28,-28,-47,-28,-28,-28,-45,-28,-28,-28,-28,-28,-28,-28,-28,-28,-45,-28,-28,-28,-28,-22,-15,0,-27,-27,-35,-8,-15,-8,-4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-40,-47,-40,-33,-40,-54,-304,-283,-311,-54,-298,-135,-135,-135,-135,-135,-135,-135,-216,-135,-135,-135,-135,-135,-116,-135,-197,-135,-256,-135,-224,-135,-135,-135,-135,0,-135,-135,-244,-135,-135,-135,-239,-233,-367,-230,-211,-157,-268,-264,-274,-273,-298,-283,-556,-564,-527,-520,-856,-801,-1391,-1343,-1742,-1701,-29969,-29967,-12799,-1562,-29980,-29978,-6187,-6007]} 1. d4 d5 2. Bf4 c5 3. e3 cxd4 4. exd4 Nc6 5. c3 Bf5 (5... Nf6 6. Bd3 Bg4 7. Qb3 Qc8 8. Nd2 e6 9. Ngf3 Bh5 10. O-O Be7 11. Rae1 a6 12. Qc2 Bg6 13. Ne5 Nxd4 14. Qa4+ Nc6 15. Nxg6 hxg6 16. Nf3 b5 17. Qd1 Qd7 18. a4 bxa4 19. Qxa4 {1-0 (84) Nakamura,H (2780)-Topalov,V (2749) Saint Louis 2017}) 6. Nd2 {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack} e6 7. Ngf3 Bd6 8. Bxd6 Qxd6 9. Nh4 Bg6 10. Nxg6 hxg6 {LiveBook: 4 Games} 11. Nf3 Nge7 12. g3 Nf5 $146 ({Predecessor:} 12... f6 13. Bg2 {1-0 (61) Lilov,V (2323)-Bets,A (2348) Peterhof 2007}) 13. Bg2 b5 14. a3 a5 15. O-O O-O 16. Ne1 {[%cal Bf3e1,Be1d3,Bd3c5][%mdl 32]} b4 17. axb4 axb4 18. Nd3 bxc3 19. bxc3 Qc7 20. Nc5 Nd6 21. Qe2 Rae8 22. f4 (22. Ra4 $11) 22... Nb8 $15 23. h4 Nd7 24. Nxd7 Qxd7 25. h5 gxh5 26. Qxh5 g6 27. Qh6 Nf5 28. Qh3 Kg7 29. g4 Rh8 30. Qd3 Nd6 $36 {[%mdl 2048] Black is pushing.} 31. Rae1 Qd8 {Strongly threatening ...Qh4.} 32. Qe2 (32. Qg3 $142) 32... Nc4 (32... Rh4 $142 $1 33. Qe5+ Kg8) 33. g5 $2 (33. Qf2 $17) 33... Qc7 34. Rb1 Ra8 35. Qf2 Ra3 36. Rbc1 Nd6 37. Qe1 Nf5 $1 38. Rf3 Rc8 (38... Rh4 $1 $19 39. Qe5+ Qxe5 40. fxe5 Rg4) 39. Qd2 (39. Bf1 $17) 39... Rb3 $19 40. Rh3 Qb8 {Hoping for ...Rb2.} 41. Rc2 (41. Rf1 $17) 41... Rb1+ 42. Kh2 $2 (42. Bf1) 42... Rc4 43. Ra2 Rc6 44. Rf3 Rcb6 (44... Rc8 $142 45. Qf2 Rh8+ 46. Rh3 Rxh3+ 47. Bxh3 Qh8) 45. Rc2 (45. Qe2 {keeps fighting.}) 45... Nd6 46. Rh3 $2 (46. Qf2) 46... Rc6 (46... Ne4 $1 $19 {[%cal Re4d2]} 47. Bxe4 dxe4) 47. Qf2 {White wants to play Qh4.} Nf5 48. Rf3 $2 (48. Bf1) 48... Rc8 49. Rh3 Ra1 50. Rb2 Qc7 51. Qd2 (51. Bf1 $142) 51... Ra3 52. Rc2 Ra4 53. Rb2 Rc4 {[%cal Rc4c3]} 54. Rb3 Rc6 (54... Ra8 $142 55. Bf1 Rca4) 55. Ra3 (55. Bf1 $17) 55... Rb8 $2 (55... Rb6 $19 56. Bf1 Rbb8) 56. Ra1 $2 (56. Bf1 $1 $15) 56... Rcb6 57. Ra2 Rc8 58. Rc2 Rc6 (58... Rb1 $19 {is more deadly. Threatens to win with ...f6.} 59. Qf2 Qb8) 59. Bf1 $17 Qb8 60. Rb2 Qd6 61. Rc2 Qc7 62. Bb5 Rb6 {[%cal Bc6b6,Bb6b8,Bb8h8][%mdl 32]} 63. Bd3 Ne7 64. Qf2 {Black must now prevent Qh4.} Rbb8 65. Kg2 Rh8 66. Rxh8 Rxh8 67. Rc1 Qa5 68. Qd2 Nc6 {...Nxd4! is the strong threat.} 69. Be2 Qa3 (69... Rb8 {is interesting.} 70. Kg3 Rb3 71. Kg2 Qa3 72. Bf1 Ne7) 70. Rh1 Rxh1 71. Kxh1 Ne7 72. Bd3 Nc8 73. Kg2 Nd6 74. Qe1 Kf8 75. Qd2 Ke7 76. Qc2 Kd7 77. Kf2 Qa1 78. Kg2 Ke7 79. Qd2 Qa4 80. Kf2 Qb3 81. Ke2 Qb8 82. Qa2 Qc7 83. Qa3 Kf8 84. Ke3 Kg7 85. Qc5 Qb8 86. Qb4 Qd8 87. Qc5 Nf5+ 88. Bxf5 gxf5 $11 {[%mdl 4096] Endgame KQ-KQ} 89. c4 dxc4 90. Qxc4 Qa5 91. Qc1 Qd5 92. Qb1 $2 ({Only move:} 92. Qd2 $1 $15) 92... Kg6 $1 $19 93. Qc2 Qb7 $2 ({Black should play} 93... Kh5 $1 $19 {[%cal Rh5g4]} 94. Qe2+ Kh4 95. Qh2+ Kg4 96. Qe2+ Kg3 97. Qf2+ Kh3) 94. Qd2 $2 (94. Kf2 $1 $15) 94... Qh1 (94... Qb3+ $19 {and Black stays clearly on top.} 95. Kf2 Kh5 96. Qe2+ Kh4) 95. Qf2 $17 Kh5 96. Qg3 Qe4+ 97. Kd2 {Qh3+ would kill now.} Qxd4+ 98. Kc2 (98. Ke2 $17 Kg6 99. Qh4 Qc4+ 100. Kd2) 98... Qe4+ 99. Kc3 {White wants to mate with Qh3+.} Qc6+ 100. Kb4 {Intending Qh3+ and mate.} Qd6+ 101. Kc4 {Threatening mate with Qh3+.} Kg6 102. Qh4 {[#]} (102. Qh2 $17 {was called for.} Kg7 103. Qh6+ Kg8 104. g6 Qd5+ 105. Kb4 fxg6 {[%mdl 64] Overworked Piece} 106. Qxg6+ Kf8 107. Qg3) 102... Qf8 ({Better is} 102... Qd5+ $1 $19 103. Kc3 Qc5+ 104. Kd3 Kg7 105. Qh6+ Kg8) 103. Kd4 {[#]} (103. Qh1 $17) 103... Qb4+ (103... e5+ $1 $19 {[%mdl 512]} 104. Kc4 (104. Kxe5 Qc5#) 104... exf4 105. Qxf4 Qd8) 104. Kd3 (104. Ke3 $17 Kg7 105. Kf2) 104... Qb3+ 105. Kd2 {[%csl Gg5][%cal Rh4h6]} Qb2+ 106. Kd3 {[%csl Gg5][%cal Rh4h6]} Qb3+ 107. Kd2 $1 {[%csl Gg5][%cal Rh4h6]} Qd5+ 108. Kc1 (108. Ke1 $17 Kg7 109. Qh6+ Kg8 110. g6 Qe4+ 111. Kf2 Qd4+ 112. Kf3) 108... Qc4+ (108... Kg7 $19 109. Qh2 Qb3) 109. Kd2 {[%csl Gg5][%cal Rh4h6]} Qd4+ 110. Kc2 (110. Ke2 $17 Kg7 111. Qh6+ Kg8 112. g6) 110... Kg7 $19 111. Kb3 (111. Qh6+ {was necessary.} Kg8 112. Qh2) 111... Kg8 112. Qh2 Kf8 113. Ka3 (113. Kc2 $17 {might work better.}) 113... Ke7 114. Kb3 Kd6 115. Ka2 Kc5 116. Qg3 $2 (116. Qh5 Qxf4 117. Qxf7) 116... Qd2+ 117. Kb3 Kd4 118. g6 (118. Qh4 $142 Ke4 119. Qh7 Kxf4 120. Qxf7 Qd5+ 121. Kc3 Kxg5 122. Qg8+ Kh4 123. Qh7+ Kg3 124. Qg7+ Kf3 125. Qh7) 118... fxg6 {[%mdl 64] Overworked Piece} 119. Qxg6 Qxf4 120. Qg7+ e5 {[%cal Be6e5,Be5e4][%mdl 32]} 121. Qd7+ Ke3 122. Qd1 Qf3 (122... Kf2 $142 123. Qc2+ Kg3) 123. Qg1+ Ke2+ 124. Kb2 e4 {Accuracy: White = 37%, Black = 55%.} 0-1

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.06"]
[Round "8"]
[White "Le, Quang Liem"]
[Black "Dragun, Kamil"]
[Result "1-0"]
[ECO "E26"]
[WhiteElo "2714"]
[BlackElo "2578"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,81,28,44,7,22,22,32,-8,26,26,23,18,40,36,41,41,39,38,48,37,50,43,41,46,61,45,46,34,64,39,62,37,45,34,42,58,56,61,62,67,81,77,83,71,83,93,162,145,151,146,160,158,198,192,284,256,256,256,256,250,248,247,434,436,430,403,653,636]} 1. c4 e6 2. Nc3 d5 3. d4 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 Nf6 7. cxd5 Qxd5 {E26: Nimzo-Indian: Sämisch: 5...c5 6 e3} (7... exd5 8. Bd3 O-O 9. Ne2 b6 10. O-O Ba6 11. f3 Re8 12. Ng3 Bxd3 13. Qxd3 Nc6 14. Bb2 h5 15. Rae1 h4 16. Nf5 h3 17. gxh3 Ne7 18. dxc5 bxc5 19. c4 dxc4 20. Nxe7+ Qxe7 21. Qxc4 Rab8 22. Rf2 {0-1 (40) Navara,D (2740)-Alekseev,E (2616) Katowice 2017}) 8. Nf3 O-O {LiveBook: 6 Games} 9. Be2 Nc6 {The position is equal.} 10. O-O b6 11. Bd3 $146 ({Predecessor:} 11. Bb2 cxd4 12. cxd4 Bb7 13. Rc1 Rac8 14. Bc4 Qd6 15. Qe2 {½-½ (50) Alonso Rosell,A (2485)-Lovik,L (2298) Porto Carras 2010}) 11... Bb7 12. e4 Qh5 ({Much worse is} 12... Nxe4 $6 13. c4 $16) 13. h3 Na5 14. Re1 Rac8 15. Rb1 h6 16. Qe2 Nd7 17. Bf4 Rfe8 18. Bb5 Bc6 19. Ba6 Rcd8 20. Bc7 Ra8 21. Bg3 Rad8 22. Bd3 Rc8 23. Qe3 f6 24. Nd2 Qf7 25. Rbc1 $36 {[%mdl 2048] White has some pressure.} Qe7 26. Nc4 Nxc4 27. Bxc4 b5 28. Be2 a6 29. a4 c4 30. axb5 Bxb5 (30... axb5 $16 31. Bh5 Red8) 31. Bh5 $18 Red8 32. Ra1 Nf8 33. f4 Nd7 34. Bh4 Nb6 (34... Kh8 $142 35. Rf1 Rf8) 35. Qg3 Qf8 36. e5 f5 37. Bxd8 Qxd8 38. Qg6 Qd7 $2 (38... Qe7) 39. g4 Qd5 {[#] White must now prevent ...Be8.} 40. gxf5 {And now f6 would win.} exf5 (40... Be8 $142) 41. Re3 {Accuracy: White = 69%, Black = 52%.} 1-0

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.06"]
[Round "8"]
[White "Bruzon Batista, Lazaro"]
[Black "Balakrishnan, Praveen"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2664"]
[BlackElo "2418"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,61,16,13,19,12,56,54,108,95,151,131,137,154,126,130,120,127,143,106,111,79,122,126,120,94,97,45,95,51,51,43,117,108,120,105,110,95,103,71,89,89,183,157,438,431,543,571,552,539]} 1. d4 Nf6 2. Nf3 d5 {[%cal Bd7d5,Bd5d4][%mdl 32]} 3. c4 e6 4. Nc3 Be7 5. Qc2 c5 6. dxc5 d4 {D37: Queen's Gambit Declined: 5 Bf4} 7. Nb5 Bxc5 (7... e5 8. Nxe5 a6 9. Na3 Bxc5 10. Nd3 O-O 11. Nxc5 Qa5+ 12. Bd2 Qxc5 13. e3 Nc6 14. Bd3 {1-0 (50) Le,Q (2737)-Sargissian,G (2672) Riadh 2017}) 8. Bf4 {LiveBook: 3 Games. Threatens to win with Nc7+.} O-O {The position is equal.} 9. O-O-O $1 a6 $146 ({Predecessor:} 9... Qa5 10. a3 Nc6 11. b4 Bxb4 12. axb4 Nxb4 13. Bd2 e5 14. Nxe5 Nfd5 15. cxd5 {1-0 (25) Eingorn,V (2560)-Vaganian,R (2625) Moscow 1988}) 10. Nbxd4 Bxd4 (10... Nbd7 $14) 11. Nxd4 Qe7 (11... Qa5 $142) 12. Nf3 $16 {Hoping for Bd6.} Rd8 13. Rxd8+ Qxd8 14. e4 {[%cal Be2e4,Be4e5][%mdl 32]} Nc6 15. e5 Nd7 16. a3 Qc7 17. Kb1 h6 18. Be2 b6 19. Rd1 Bb7 20. Qc3 ({Better is} 20. Rd6 $16) 20... Rc8 21. Qe3 Na5 22. Rc1 $36 {[%mdl 2048] White has some pressure.} Nc6 (22... g5 $14) 23. h4 Ne7 24. Nd4 Ng6 {[#]} 25. Bg3 $1 Ngxe5 26. Nf3 (26. Bf4 {is interesting.} a5 27. Qg3 Kh8 28. Rd1 Ba6 29. b3) 26... Bxf3 27. gxf3 {[%cal Bg2f3,Bf3f4][%mdl 32]} Qc5 (27... Re8 $16) 28. Rd1 $18 f6 $2 (28... Rc7 $16 29. b4 Qxe3 30. fxe3 f6) 29. f4 {White is clearly winning.} Nxc4 30. Qxe6+ {[%mdl 64] [#] Double Attack} Kh8 31. Qxc4 {Accuracy: White = 67%, Black = 36%.} ({Weaker is} 31. Qxd7 Nxa3+ 32. Ka2 Nc2 $16) 1-0

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.06"]
[Round "8"]
[White "Negi, Parimarjan"]
[Black "Katz, Alexander"]
[Result "1-0"]
[ECO "B74"]
[WhiteElo "2656"]
[BlackElo "2433"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,108,21,50,-47,0,0,37,40,34,32,32,25,25,25,25,18,32,33,38,25,27,34,24,23,14,5,26,23,61,61,68,68,88,88,88,68,88,88,88,88,88,88,88,88,88,72,72,50,57,40,40,15,108,108,100,91,111,81,251,260,265,255,178,170,346,360,370,366,335,358,349,327,479,426,489,485,577,560,534,519,597,587,803,800,696]} 1. e4 c5 2. Nf3 Nc6 3. Nc3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Be3 Nf6 7. Nb3 O-O 8. Be2 d6 9. f4 Be6 10. O-O a5 11. a4 Rc8 12. Kh1 {B74: Sicilian Dragon: Classical System with 9 Nb3} Nb4 (12... Bxb3 13. cxb3 Nd7 14. Bc4 Nb4 15. Qe2 Nb6 16. Nd5 N4xd5 17. exd5 Nd7 18. Rae1 Nc5 19. f5 Nd7 {1-0 (72) Tiviakov,S (2674)-Colovic,A (2441) Benidorm 2009}) 13. Nd4 Bc4 {LiveBook: 6 Games} 14. Bd3 (14. Bxc4 $14 Rxc4 15. Qe2) 14... Bxd3 $146 ({Predecessor:} 14... e5 15. Ndb5 Bxd3 16. cxd3 Nh5 17. f5 d5 18. fxg6 hxg6 19. Bf2 d4 {0-1 (35) Tantau,A (2250)-Gheng,J (2350) Miercurea Ciuc 1998}) 15. cxd3 {[%cal Bc2d3,Bd3d4][%mdl 32]} Nd7 16. Ndb5 d5 17. e5 Nc5 18. Bxc5 Rxc5 19. d4 Rc6 20. Qe2 Qd7 21. Rae1 Qf5 22. g4 Qc2 $1 23. Qxc2 Nxc2 24. Re2 $36 {[%mdl 2048] White is pushing.} Nb4 25. f5 Bh6 26. h4 {[%cal Bh2h4,Bh4h5][%mdl 32] Black must now prevent g5.} g5 27. h5 Bg7 28. Ref2 h6 29. Kg2 Rd8 30. Kf3 Rc4 31. b3 Rc6 32. Ke2 Rdc8 33. Kd2 Ra8 34. Rc1 Bf8 35. Rff1 Rd8 36. Ne2 (36. Rg1 {keeps more tension.} Bg7 37. Rgd1 Ra8 38. Ke2 Bf8 39. Rg1) 36... Rdc8 37. Rxc6 (37. Nbc3 {seems wilder.} Bg7 38. Ke3 Bf8 39. Rfd1 Ra8 40. Re1) 37... bxc6 38. Rc1 Rb8 (38... Ra8 $1 $11 {remains equal.}) 39. Na7 $16 Rb6 40. f6 exf6 41. exf6 Rb7 $2 {[#]} (41... Kh7 $16) 42. Nxc6 $18 Nxc6 43. Rxc6 Rxb3 {[%mdl 4096] Endgame KRB-KRN} 44. Rc8 {aiming for Nc3.} Rf3 $2 (44... Rh3 {was worth a try.} 45. Nc3 Rh2+ 46. Kd1 Rh1+ 47. Kc2 Rh2+ 48. Kb3 Rh3) 45. Nc3 Rf2+ 46. Ke3 Rxf6 47. Nxd5 Re6+ 48. Kd3 f6 (48... f5 {was necessary.} 49. gxf5 Ra6) 49. Ra8 {White is clearly winning.} Re1 50. Rxa5 Kf7 51. Ra7+ Ke6 52. Ne3 Ba3 53. a5 Bc1 54. Nf5 {[#] Threatening mate with Re7+.} Kd5 {Accuracy: White = 73%, Black = 50%.} 1-0

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.06"]
[Round "8"]
[White "Swiercz, Dariusz"]
[Black "Macieja, Bartlomiej"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2649"]
[BlackElo "2509"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,59,42,20,60,27,33,19,17,26,41,41,39,29,41,19,14,25,28,0,23,29,24,25,17,18,15,6,27,27,27,21,29,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Ne7 6. c3 h6 7. O-O Nd7 8. Nbd2 {B12: Caro-Kann: Advance Variation} Qc7 (8... c5 9. dxc5 Nxc5 10. Nd4 Nd7 11. Nxf5 Nxf5 12. Bd3 Ne7 13. Nf3 Nc6 14. Re1 Qc7 15. Qe2 g5 {0-1 (50) Karjakin,S (2773)-Mamedyarov,S (2801) Saint Louis 2018}) 9. Re1 {LiveBook: 10 Games} Bh7 10. b4 $146 {White is slightly better.} ({Predecessor:} 10. Nb3 a5 11. a4 Nf5 12. Bd2 Be7 13. c4 O-O 14. cxd5 cxd5 15. Rc1 Qb6 {½-½ (61) Costa Trillo,V (2067)-Scheiba,M (2242) ICCF email 2012}) 10... a5 11. a4 Ng6 12. bxa5 Rxa5 13. Nb3 Ra8 14. h4 Ne7 15. h5 Nc8 16. a5 Be7 17. c4 dxc4 18. Bxc4 b6 {[%cal Rb6a5]} 19. a6 b5 20. Bd3 Bxd3 21. Qxd3 Ncb6 22. Re4 O-O 23. Rg4 Kh8 $1 24. Bxh6 gxh6 {The position is equal.} 25. Qe3 {[%cal Re3h6] [#]} Kh7 26. Qe4+ Kh8 {And now ...Nd5 would win.} 27. Qf4 {[%cal Rf4h6]} Kh7 {aiming for ...Nd5.} 28. Qe4+ $1 Kh8 {[#] Hoping for ...Nd5.} 29. Qe3 {[%cal Re3h6]} Kh7 30. Qe4+ {Precision: White = 61%, Black = 77%.} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.06"]
[Round "8"]
[White "Quesada Perez, Yuniesky"]
[Black "Stukopin, Andrey"]
[Result "0-1"]
[ECO "B49"]
[WhiteElo "2642"]
[BlackElo "2565"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,120,19,17,31,29,45,38,66,56,91,93,137,143,149,147,146,135,143,134,132,114,117,117,114,115,134,137,143,123,139,134,114,81,131,89,124,133,121,81,144,154,148,69,68,59,66,0,0,0,0,0,0,0,0,0,0,-183,-134,-111,0,-135,-141,-207,-213,-214,-214,-141,-141,-158,-141,-145,-170,-162,-91,-91,-28,-91,-91,-349,-163,-220,-210,-198,-133,-135,-83,-166,-166,-936,-11,-11,0,-1110,-1082,-1187,-1074,-867,-867,-3172,-2209,-2842,-2344,-1981,-1640]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. a3 b5 8. Nxc6 Qxc6 9. Be2 Bb7 {B49: Sicilian: Taimanov: 5 Nc3 Qc7 6 Be3 a6 7 Be2} 10. O-O {LiveBook: 27 Games} Ne7 {[%cal Bg8e7,Be7f5,Bf5d4][%mdl 32]} (10... Rc8 11. Bd4 Qc7 12. Qd3 Nf6 13. f4 Be7 14. Bf3 O-O 15. e5 Ne8 16. f5 Bxf3 17. Rxf3 Qc4 18. Qd2 f6 19. exf6 Nxf6 20. Kh1 a5 21. Bxf6 Bxf6 22. Qxd7 exf5 23. Rxf5 Bxc3 {½-½ (23) Kobalia,M (2599)-Najer,E (2683) Batumi 2018}) 11. Qd2 Nf5 {White has an edge.} 12. Bf4 Bc5 13. Rad1 $146 ({Predecessor:} 13. Rfd1 Nd4 14. Bg4 d6 15. Be3 e5 16. Nd5 Kf8 17. Bh6 f6 18. Nxf6 {1-0 (18) Osipov,A (1708)-Crapulli,G (1611) LSS email 2012}) 13... Nd4 14. Bg4 O-O-O 15. Bh3 {Threatens to win with Be5.} f6 16. Be3 e5 17. Nd5 (17. Bxd4 $6 exd4 18. Nd5 Rhe8 $14) 17... Kb8 18. b4 (18. Bxd4 $6 Bxd4 19. c3 Bc5 $14) 18... Ba7 19. c3 (19. Bxd4 $6 Bxd4 20. c3 Ba7 $14) 19... Ne6 20. Bxa7+ Kxa7 21. Rfe1 {[%cal Bf1e1,Be1e3,Be3d3,Bd3d4][%mdl 32]} Kb8 22. Re3 Nf4 23. Nxf4 exf4 24. Rd3 Qxe4 25. Re1 (25. Rxd7 $6 Rxd7 26. Qxd7 Re8 $15) 25... Qc4 26. Rd4 (26. Rxd7 $6 Rxd7 27. Bxd7 Qc7 $11) 26... Qc7 27. Bxd7 ({Much worse is} 27. Rxf4 $6 Rhe8 $11) 27... f3 28. g3 h5 ({Black should play} 28... g5) 29. Re7 $1 $16 h4 30. g4 ({Don't blunder} 30. Rxh4 $2 Rxh4 31. gxh4 Bc6 $19) ({Of course not} 30. gxh4 $6 g5 $11) (30. Qe3 $16) 30... h3 $1 $14 31. Qe3 $1 g5 32. Bxb5 ({Better is} 32. a4 $1 $14) 32... Rxd4 $11 33. cxd4 Qc8 34. Bd7 Qc2 35. Bf5 Qd1+ 36. Qe1 Qxd4 37. Be4 $2 (37. Rd7 $11 {and White is okay.} Qc4 38. Rd3) 37... Bd5 38. Bf5 Rd8 (38... Bc6 $1 $17) 39. b5 (39. Rd7 $11 Rc8 40. Rxd5 Qxd5 41. Bxc8 Kxc8 42. Qe8+ Kc7 43. Qe7+ Qd7 44. Qxd7+ Kxd7 45. Kf1) 39... axb5 $17 40. Qa5 (40. Re3 $17) 40... Qd1+ $1 $40 {[%mdl 128] Black wants a kill.} 41. Re1 Bb7 42. Kf1 Qd6 43. Re6 Qc7 44. Qxc7+ Kxc7 $17 {[%mdl 4096] Endgame KRB-KRB} 45. Ke1 Bd5 ({Black should try} 45... Rd4 $1 $19 46. Rxf6 Bd5) 46. Re3 Ra8 (46... Bc6 $17) 47. Kd2 (47. Bc2 $1 $11 {remains equal.}) 47... Ra4 48. Be6 $2 {[%mdl 8192]} (48. Rd3 $17 {was necessary.} Kc6 49. Rc3+ Kd6 50. Rd3) 48... Be4 (48... Bxe6 $142 49. Rxe6 Rxg4 50. Rxf6 Rg2 51. Rf7+ Kd6) 49. Rb3 (49. Kc1 {keeps fighting.}) 49... Kd6 $19 50. Bc8 Bc6 (50... Rc4 $1 $19 {[%cal Rc4c8]} 51. Rc3 Rd4+ 52. Ke3 Ra4) 51. Bf5 Ke5 52. Re3+ (52. Ke3 $17 {is a better defense.}) 52... Kf4 53. Rb3 $2 {[#]} (53. Bc2 Rd4+ 54. Rd3) 53... Rd4+ $2 (53... Be4 $1 $19 {[%cal Re4f5]} 54. Bxe4 Rxe4) 54. Rd3 $1 $11 {[%cal Rd3d4]} Ra4 $2 {[%mdl 8192]} (54... Ke5 $11) 55. Rb3 $1 $19 {[#]} Be4 $1 {[%cal Re4f5] Black is clearly winning.} 56. Be6 Ra6 57. Bf7 Rd6+ 58. Kc1 Rc6+ 59. Kd2 Rc2+ 60. Ke1 Rc1+ {Accuracy: White = 51%, Black = 55%.} 0-1

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.06"]
[Round "8"]
[White "Prohaszka, Peter"]
[Black "Karthik Venkataraman"]
[Result "0-1"]
[ECO "E68"]
[WhiteElo "2613"]
[BlackElo "2515"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,90,32,58,59,61,60,108,95,135,72,84,21,31,40,36,27,33,27,35,21,30,-61,-39,-40,-45,-48,-65,-166,-184,-197,-195,-187,-197,-195,-188,-189,-182,-241,-230,-332,-322,-427,-409,-419,-415,-410,-408,-657,-661,-847,-824,-720,-587,-523,-500,-514,-491,-1406,-444,-992,-987,-834,-582]} 1. d4 {Dautov,R} Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 Re8 10. h3 Nc5 11. Re1 Bd7 12. Rb1 h6 13. Kh2 a6 {E68: King's Indian: Fianchetto: 6...Nbd7 7 0-0 e5 8 e4} 14. b4 Ne6 15. Be3 Ng5 {[%cal Rg5e4] LiveBook: 3 Games. White is slightly better.} 16. f3 $1 Qc8 {[%cal Rd7h3]} 17. h4 Ngh7 $146 ({Predecessor:} 17... Ne6 18. Nd5 b5 19. Nxe6 Bxe6 20. Bxh6 Qd8 21. Bxg7 Kxg7 {½-½ (40) Kengis,E (2580)-Antonio,R (2490) Moscow 1994 CBM 045 [Dautov,R]}) 18. Qd2 g5 19. g4 (19. Rh1 $142) 19... Qd8 20. Nf5 ({White should play} 20. Rec1 $16) 20... Bxf5 $1 $11 21. exf5 {[%cal Rh4g5]} Nd7 22. hxg5 hxg5 23. Rbc1 Ne5 24. Ne4 {[%cal Re4g5]} b5 25. cxb5 ({White has to play} 25. Bxg5 $11 Nxg5 26. Nxg5) 25... axb5 26. Bxg5 (26. Nxg5 $2 Nc4 $19) 26... Nxg5 27. Qxg5 Rxa2 {aiming for ...Nxf3+.} 28. Qxd8 (28. Kg3 $15 Qxg5 29. Nxg5) 28... Rxd8 $19 29. Rf1 {[#]} Nd3 $1 30. Rcd1 Be5+ ({Don't take} 30... Nxb4 31. f6 $15) 31. Kh1 Nf4 ({Much less strong is} 31... Nxb4 32. f4 $17) 32. Rf2 {[#]} Ra4 $1 33. Rc2 (33. Rb1 {was necessary.}) 33... Kg7 ({Not} 33... Rxb4 34. Rxc7 d5 35. Rb7 $17) 34. Ng3 (34. Bf1 $142) 34... Rh8+ 35. Nh5+ Nxh5 36. gxh5 Rxh5+ 37. Kg1 Rxb4 38. Rxc7 (38. Kf1 $142) 38... Rb2 {Black is clearly winning.} 39. Kf1 Rh2 40. f4 Rhxg2 41. fxe5 Rbf2+ 42. Ke1 dxe5 43. Rd5 (43. Re7 $142) 43... Rxf5 (43... Rh2 $142 44. Rc3 Ra2 45. f6+ Kh6) 44. Rxb5 (44. Rb7 $142) 44... Ra2 {( -> ...Rh5)} 45. Rbb7 Kg6 {Precision: White = 36%, Black = 67%.} 0-1

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.06"]
[Round "8"]
[White "Cordova, Emilio"]
[Black "Gabuzyan, Hovhannes"]
[Result "1/2-1/2"]
[ECO "E62"]
[WhiteElo "2597"]
[BlackElo "2605"]
[Annotator "TA"]
[PlyCount "244"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,244,37,60,42,40,34,57,0,-4,-8,1,0,18,13,17,17,30,29,35,22,37,4,10,-3,-3,-3,-3,-3,-3,-10,-10,-12,-3,-10,-10,-10,-10,-8,-10,-16,-3,-16,-7,-31,-23,-23,-23,-23,-23,-23,-23,-23,-23,-36,-32,-64,-56,-60,-57,-65,-60,-65,-65,-65,-26,-65,-65,-65,-65,-65,-65,-65,-64,-65,0,-46,0,-46,-46,-46,-46,-46,-22,-22,-26,-26,-26,-23,-25,-27,-38,-43,-47,-43,-43,-43,0,0,0,0,60,55,97,-98,-46,-46,-46,-46,-46,-46,-46,-46,-46,-83,-47,-47,-47,-83,-83,-83,-47,-47,-47,-152,-49,-83,-83,-64,-64,-64,-64,-82,-47,-82,-47,-48,-47,-54,0,-47,0,-82,-82,-95,-95,-95,-47,-47,-47,-95,-79,-96,-55,-47,-47,-47,-47,-47,0,-47,-47,-47,-47,-38,-38,-38,-38,-38,-38,-38,-25,-25,0,-25,0,-38,0,-38,-38,-47,-55,-62,-18,-63,-18,-18,-18,-18,-18,-56,0,-16,-16,-16,-16,-24,-24,-24,0,-24,-24,-24,-8,-8,-8,-8,-15,-15,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,0,-18,0,-12,0,0,0]} 1. Nf3 Nf6 2. c4 c6 3. d4 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O d6 7. Nc3 Qa5 8. e4 Bg4 9. h3 Bxf3 10. Bxf3 Nbd7 11. Be3 c5 {LiveBook: 13 Games} 12. Rc1 {E62: King's Indian: Fianchetto: 6...c6 and Panno Variation (6...Nc6) without ...a6} (12. Rb1 cxd4 13. Bxd4 Rfc8 14. b4 Qc7 15. Be2 Ne8 16. Nb5 Qb8 17. Bg4 Rd8 18. Bxg7 Nxg7 19. Bxd7 Rxd7 {0-1 (32) Grunberg,M (2391)-Manolache,M (2527) Eforie Nord 2010}) 12... cxd4 $146 ({Predecessor:} 12... a6 13. b3 Rac8 14. a4 cxd4 15. Bxd4 Ne5 16. Bg2 Nc6 17. Be3 Nd7 18. Nd5 e6 19. Bd2 Qd8 {½-½ (33) Lomineishvili,M (2397)-Kosintseva,N (2417) Istanbul 2003}) 13. Bxd4 Bh6 14. Bxf6 (14. Rc2 $14) 14... Nxf6 $11 15. Rc2 Rac8 16. b3 Rfe8 17. Qe2 Nd7 18. e5 Nxe5 19. Bxb7 Rc7 20. Bg2 Nc6 {[%cal Be5c6,Bc6b4,Bb4c2][%mdl 32]} 21. Rd1 {Hoping for Nb5.} Nb4 22. Nd5 Nxc2 23. Nxc7 Qxc7 24. Qxc2 Rb8 25. Qe4 Bg7 26. h4 Bf6 27. Bf3 h5 28. Kg2 Kg7 29. Rd5 e6 30. Rd2 Rb6 31. Rc2 Qc5 (31... Rb4 {with more complications.} 32. Qd3 a5 33. Rd2 Rb6 34. Kh2 Qc5) 32. Qe3 (32. Qa8 {feels hotter.} Rb4 33. Rd2 Qc7 34. Qc6 Qxc6 35. Bxc6 Rb6 36. Rxd6 Be5 37. c5) 32... a5 33. Qxc5 dxc5 {[%mdl 4096] Endgame KRB-KRB} 34. Rd2 Bd4 35. Bd1 e5 36. Re2 f5 37. f3 Bc3 38. a4 Rd6 39. Bc2 Kf6 40. Kh3 Bd2 41. Kg2 Rd4 42. Kh3 g5 43. hxg5+ Bxg5 44. Kg2 Bc1 45. Kh3 Bh6 46. Rf2 Bg5 47. Re2 Bh6 48. Rf2 Bg5 49. Re2 $1 Rd7 50. Rf2 Rd8 51. Re2 h4 52. g4 fxg4+ 53. Kxg4 Rh8 54. Kh3 $1 Bf4 55. Rg2 Bg3 56. Rd2 Kg5 57. Rd7 Kf4 58. Be4 Rg8 59. b4 cxb4 {aiming for ...Bf2.} 60. c5 Bf2 (60... Kg5 $11) 61. c6 $1 $14 b3 {[#]} 62. c7 $2 {[#]} (62. Rb7 $1 $16 {stays on course.}) 62... Bb6 (62... Rc8 $1 $17 63. Rf7+ Ke3) 63. Rf7+ Ke3 {...Rc8 is the strong threat.} 64. c8=Q Rxc8 65. Rb7 Bd4 {And now ...b2 would win.} 66. Rxb3+ Kf4 67. Rb7 Rc4 68. Rf7+ Ke3 69. Kxh4 Rxa4 70. Kg4 Ra1 71. Kf5 a4 72. Bd5 ({White should play} 72. Rf6 $15) 72... a3 ({Black should try} 72... Rc1 $17 {White must now prevent ...Rc5.} 73. Rf8 Rc5) 73. Rb7 Bb2 74. Ra7 Rd1 75. Ke6 Rd4 76. Ra8 Rf4 77. Ra7 Kd2 78. Ra8 Kc1 79. Ra7 Kd2 80. Ra8 Ke3 81. Ra7 Rb4 82. Ra8 Rb6+ 83. Kf5 Rd6 84. Be4 Rh6 85. Bd5 Rh5+ 86. Kg4 Rh2 87. Kf5 Re2 88. Ra4 Rd2 89. Ke6 Rd4 90. Ra8 Kd2 91. Ra7 Kc1 92. Ra8 Kb1 93. Ra7 Ka1 94. Ra8 Rd3 95. Ra7 Bd4 96. Ra8 Bb2 97. Ra7 Rd4 98. Ra8 Kb1 99. Ra7 Rb4 100. Ra8 Kc2 101. Kf5 Kd3 102. Ra7 Rb8 {next ...Kd4 is good for Black.} (102... Kd4 $5 {[%cal Rd4d5]} 103. Ba2 Kd3 $17) 103. Ra4 Rf8+ 104. Ke6 Ke3 105. Re4+ Kd3 106. Ra4 $1 Rf4 107. Ra8 Kd4 108. Be4 Kc5 109. Rc8+ Kd4 110. Ra8 Rh4 111. Rd8+ Ke3 112. Ra8 {The position is equal.} Rh6+ 113. Kf5 Rd6 114. Ra7 Rd8 {Black wants to play ...Kd4.} 115. Ra6 Rf8+ 116. Ke6 Kf4 117. Ra7 Re8+ 118. Kf7 Rb8 {Threatening ...Rb6.} 119. Ra4 Rb6 120. Bd5+ Ke3 121. Ke7 Rh6 122. Re4+ Kd3 {Accuracy: White = 66%, Black = 58%.} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.06"]
[Round "8"]
[White "Bai, Jinshi"]
[Black "Brown, Michael William"]
[Result "1/2-1/2"]
[ECO "A07"]
[WhiteElo "2572"]
[BlackElo "2524"]
[Annotator "TA"]
[PlyCount "43"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,43,19,24,55,49,49,44,47,47,53,50,43,42,39,34,43,41,38,36,27,26,29,10,20,15,25,11,22,0,0,0,24,0,15,0]} 1. Nf3 d5 2. g3 Bg4 3. Bg2 Nd7 {[%cal Bb8d7,Bd7c5,Bc5e4][%mdl 32]} 4. c4 e6 5. Qb3 Nc5 6. Qe3 {LiveBook: 9 Games. A07: Réti Opening: New York and Capablanca Systems} (6. Qc2 Nf6 7. O-O c6 8. d4 Ncd7 9. Nc3 Be7 10. Ne5 Bf5 11. Qb3 Qb6 12. Nxd7 Nxd7 {½-½ (37) Almasi,Z (2682)-Movsesian,S (2647) Riadh 2017}) 6... Bxf3 7. Qxf3 c6 8. d4 {White is slightly better.} Ne4 $146 ({Predecessor:} 8... Nd7 9. O-O Ngf6 10. Qd3 g6 11. cxd5 exd5 12. Qb3 Qb6 {0-1 (36) Charochkina,D (2395)-Guseva,M (2439) Khanty-Mansiysk 2015}) 9. O-O Nd6 10. Qb3 {[%cal Rc4d5]} Nf6 11. cxd5 cxd5 12. Nc3 Be7 13. f3 O-O 14. e4 Nc4 15. Rd1 Na5 16. Qb5 Rc8 {[#] Hoping for ...Rc4.} 17. e5 Nd7 18. Qd3 Qb6 19. Na4 Qc7 20. Nc3 Qb6 {White should prevent ...Nxe5.} 21. Na4 Qc7 22. Nc3 {Accuracy: White = 70%, Black = 86%.} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.06"]
[Round "8"]
[White "Ramirez, Alejandro"]
[Black "Naroditsky, Daniel"]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "2567"]
[BlackElo "2616"]
[Annotator "TA"]
[PlyCount "35"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,20,17,21]} 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 Nf5 {LiveBook: 296 Games. C67: Ruy Lopez: Berlin Defence: 4 0-0 Nxe4} {Predecessor:} 11. d5 $146 Re8 12. Rxe8+ Qxe8 13. Qd3 d6 14. Nd2 Bg5 15. Nf3 Bxc1 16. Rxc1 Bd7 17. Re1 Qd8 18. Qc4 {1-0 (31) Carlsen,M (2843)-Aronian,L (2764) Stavanger 2018} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.06"]
[Round "8"]
[White "Jacobson, Brandon"]
[Black "Sevian, Samuel"]
[Result "0-1"]
[ECO "A89"]
[WhiteElo "2404"]
[BlackElo "2647"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,82,47,51,56,61,47,57,7,22,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-297,-87,-343,-307,-433,-416,-848,-848,-848,-839,-830,-837,-812,-811,-781,-781,-734,-484,-478,-479,-472,-475,-469,-466,-460,-458,-573,-569,-580,-563,-528,-507,-586,-585]} 1. Nf3 d6 2. d4 g6 3. c4 f5 4. Nc3 Nf6 5. g3 Bg7 6. Bg2 O-O 7. O-O Nc6 8. d5 Ne5 9. Nxe5 dxe5 10. c5 h6 11. Qb3 Kh8 12. Rd1 g5 13. Bd2 a6 14. Rac1 {A89: Dutch Defence: Leningrad System: 5 Nf3 0-0 6 0-0 d6 7 Nc3 Nc6} (14. Na4 Qe8 15. Ba5 Bd7 16. Nc3 Qc8 17. Rac1 f4 18. d6 Bc6 19. dxe7 Re8 20. Nd5 Nxd5 21. Bxd5 Bxd5 22. Qxd5 Rxe7 {1-0 (31) Buhmann,R (2589)-Lagarde,M (2591) Berlin 2018}) 14... e4 {LiveBook: 6 Games} 15. f3 Qe8 16. Be3 $146 {White is slightly better.} ({Predecessor:} 16. Rf1 e5 17. fxe4 f4 18. Nd1 Qh5 19. Nf2 Qxe2 20. Qd1 Qb5 21. Bc3 Qe8 22. gxf4 gxf4 {1-0 (67) Ivanov,J (2330)-Filev,G (2399) Albena 2016}) 16... e5 17. dxe6 {[%cal Rf3e4]} Rb8 18. fxe4 Bxe6 19. Qb4 f4 20. gxf4 Ng4 21. Bd4 {Hoping for h3.} gxf4 {White must now prevent ...Qh5.} 22. Bxg7+ Kxg7 23. Nd5 $1 {[%cal Rd5c7]} Qh5 $36 {[%mdl 2048] White is under pressure.} 24. Qc3+ Kh7 25. Qh3 $2 {[%mdl 8192]} (25. h3 $1 $11 Ne3 26. Nxe3 fxe3 27. Qxe3) 25... Qe5 $2 (25... Qg5 $1 $19 {has better winning chances.} 26. Qf3 (26. Nxc7 f3 $19) 26... c6) 26. Qc3 $2 {[%mdl 8192] [#]} (26. Qf3 $17 {was the only chance.}) 26... Qg5 $1 $19 {And now ...Ne3 would win.} 27. Rf1 (27. Nxc7 {was called for.} Ne3 28. Qxe3 fxe3 29. Nxe6) 27... c6 28. h3 {[#]} (28. Kh1 $142 cxd5 29. exd5) 28... Ne3 $1 {Black is clearly winning.} ({Stronger than} 28... cxd5 29. hxg4 Bxg4 30. exd5 $15) 29. Nxe3 fxe3 30. h4 Qg3 {( -> ...Rg8)} 31. Qe1 Rxf1+ 32. Qxf1 Rg8 33. Qf3 Qxf3 34. exf3 {[%mdl 4096] Endgame KRB-KRB} Bh3 $1 35. Kh2 Bxg2 {KRB-KR} 36. Re1 Bxf3 37. Rxe3 Bh5 38. e5 Bg4 39. e6 Kg6 40. e7 Kf7 41. Rb3 Bc8 {Accuracy: White = 37%, Black = 74%.} 0-1

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.06"]
[Round "8"]
[White "Li, Zhaozhi"]
[Black "Escalante Ramirez, Brian Sebasti"]
[Result "0-1"]
[ECO "A89"]
[WhiteElo "2395"]
[BlackElo "2446"]
[Annotator "TA"]
[PlyCount "134"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,134,43,32,15,12,54,57,107,95,98,96,90,10,18,16,3,0,25,0,0,0,3,0,0,0,0,-143,-70,-283,0,0,0,0,0,0,0,0,0,0,-6,-8,-6,-8,-6,-59,-56,-56,-45,-64,-41,-43,-52,-62,-30,-52,-48,-57,-64,-76,-76,-76,-76,-82,-76,-76,-92,-69,-63,-63,-63,-77,-76,-104,-104,-199,-79,-65,0,-199,-199,-205,-107,-199,-111,-199,-199,-767,-205,-983,-690,-5708,-144,-279,0,-4602,-3182,-7926,-10658,-6095,-4133,-4618,-2625,-2176,-1295,-29980,-29980,-29985,-29986,-29986,-29987]} 1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nc3 O-O 6. Nf3 d6 7. O-O Nc6 8. d5 Ne5 9. Nxe5 dxe5 10. Qb3 h6 11. Rd1 g5 12. c5 Kh8 13. Bd2 e4 14. Rac1 {LiveBook: 7 Games. A89: Dutch Defence: Leningrad System: 5 Nf3 0-0 6 0-0 d6 7 Nc3 Nc6} Qe8 (14... a6 15. Be1 Qe8 16. d6 c6 17. dxe7 Qxe7 18. Rd6 Ne8 19. Rcd1 Nxd6 20. cxd6 Qf7 21. Qxf7 Rxf7 {0-1 (34) Demuth,A (2535)-Rapport,R (2721) Gibraltar 2016}) 15. Be3 $146 ({Predecessor:} 15. c6 b6 16. Nb5 Qd8 17. Bb4 Re8 18. Bc3 a6 19. Na3 b5 20. Rd2 Qd6 21. Bb4 Qe5 {1-0 (67) Gerbich,V (2477)-Saunders,S (2468) ICCF email 2006}) 15... f4 16. gxf4 {White is slightly better.} Qh5 {Hoping for ...Ng4.} 17. Nxe4 Nxe4 18. Bxe4 gxf4 19. Bd4 (19. Bd2 $1 $16) 19... Bxd4 $11 20. Rxd4 f3 $1 $132 {[%mdl 2048] Threatens to win with ...Rg8+. Black puts up resistance} 21. Kh1 {[%cal Re4f3]} fxe2 22. Qe3 Bg4 23. Rd3 Qh4 24. Qg3 Qg5 25. Re1 $1 Rf4 $1 {[%cal Rf4e4]} 26. Bg2 (26. f3 $11) 26... Qf5 ({Black should try} 26... Rg8 $17 {...Qf6 is the strong threat.} 27. h3 Qf6 28. hxg4 Rgxg4) 27. f3 $2 (27. d6 $15 Rxf2 28. h3 Rxg2 {[%mdl 64] Deflection} 29. Qxg2 (29. Kxg2 Rf8 $17) 29... Qxd3 {[%mdl 64] Double Attack} 30. hxg4 exd6 31. cxd6) 27... Rf8 $2 (27... Rg8 $1 $19 {And now ...Bh5 would win.} 28. Rc3 Bxf3 29. Qxf3 Rxf3 30. Rxf3 Qxd5) 28. Re3 (28. fxg4 {is a self mate.} Rf1+ 29. Bxf1 exf1=Q+ 30. Rxf1 Qxf1+ 31. Qg1 Qxd3 32. Qd4+ Qxd4 33. b3 Qxg4 34. h4 Qh3+ 35. Kg1 Rf1#) 28... Qxd5 {[%mdl 64] Double Attack} 29. R3xe2 {aiming for Re5.} ({Avoid the trap} 29. Rxe7 $2 Rxf3 30. Qe5+ (30. Qxg4 $2 {leads to mate.} Rf1+ 31. Rxf1 exf1=Q#) 30... Qxe5 $19) 29... Bxf3 30. Bxf3 Rxf3 {[%csl Gf8][%cal Rf3f1]} 31. Qe5+ Qxe5 32. Rxe5 Rf1+ 33. Rxf1 Rxf1+ {[%mdl 4096] Endgame KR-KR} 34. Kg2 Rf7 35. Rd5 (35. Re6 $11) 35... Kg7 $15 36. Rd8 c6 37. b4 e6 38. Re8 Kf6 39. Rh8 Kg6 40. Re8 Kf5 41. Rh8 Kg5 42. Re8 Rf4 43. a3 {[#]} a5 $1 {[%mdl 512]} 44. bxa5 Ra4 45. Rxe6 Rxa3 46. Re7 Rxa5 47. Rxb7 Rxc5 48. Kf3 Kh4 49. Kg2 Rc2+ 50. Kg1 {[#]} (50. Kf1 $17 {was necessary.}) 50... Rc1+ (50... c5 $1 $19 {is more deadly.} 51. Rf7 h5 52. Rf4+ Kh3 53. Rf3+ Kg4 54. Rg3+ Kf4) 51. Kg2 $17 Rc2+ (51... Rc4 $15) 52. Kg1 $19 {[#]} c5 $1 {[%cal Bc6c5,Bc5c4][%mdl 32]} 53. Rg7 Rc4 (53... c4 $19 54. Re7 h5 55. Re4+ Kh3) 54. Ra7 (54. Kf2 $17) 54... Rc1+ (54... h5 $19 55. Kg2 Rc2+ 56. Kf3 Kh3) 55. Kg2 (55. Kf2 $17 {is a better defense.}) 55... Rc2+ 56. Kg1 $2 (56. Kf3) 56... h5 $2 (56... Kg4 57. Rg7+ Kf5) 57. Ra4+ $2 (57. Rg7) 57... c4 58. Ra5 Rc1+ $2 (58... Kg4 $19 59. h3+ {[%mdl 64] Decoy} Kxh3 60. Rxh5+ Kg4) 59. Kg2 (59. Kf2 $17 {only move.}) 59... Rc2+ $2 (59... Kg4 60. h3+ Kf4 61. Rxh5 Rc2+ 62. Kf1 Ke3) 60. Kg1 $1 Kg4 61. Rc5 h4 {[%cal Bh5h4,Bh4h3][%mdl 32]} 62. Re5 Rc1+ 63. Kg2 h3+ 64. Kf2 Rc2+ 65. Kg1 Rg2+ {Black mates.} 66. Kh1 Rd2 67. Kg1 c3 {Accuracy: White = 29%, Black = 53%.} 0-1

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.06"]
[Round "8"]
[White "Ynojosa Aponte, Felix Jose"]
[Black "Chandra, Akshat"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "2368"]
[BlackElo "2492"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,63,2,0,0,0,0,0,0,0,0,0,35,35,35,21,16,0,12,13,25,4,16,0,0,0,16,14,24,0,37,37,44,9,17,9,262,262,518,515]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 5. d3 a6 6. Bg5 h6 7. Bxf6 Qxf6 8. Nd5 Qd8 9. c3 {[%cal Bc2c3,Bc3d4][%mdl 32]} d6 10. d4 exd4 11. cxd4 Ba7 12. h3 O-O {C50: Hungarian Defence and Giuoco Pianissimo} 13. O-O b5 14. Bb3 {[%cal Bc4b3,Bb3c2,Bc2b1][%mdl 32] LiveBook: 8 Games} Bb7 {The position is equal.} (14... Na5 15. Bc2 c6 16. Nf4 c5 17. dxc5 dxc5 18. Qe2 Bb7 19. e5 Qc7 20. Rad1 {0-1 (39) Nevednichy,V (2572)-Navara,D (2708) Rijeka 2010}) 15. Rc1 Rc8 16. Re1 $146 ({Predecessor:} 16. Ne3 Ne7 17. d5 Bxe3 18. fxe3 c5 19. dxc6 Rxc6 20. Rxc6 Nxc6 21. Nd4 Ne5 22. Rf4 Ng6 23. Rg4 Ne5 24. Rf4 Ng6 25. Rg4 Ne5 26. Rf4 {½-½ (26) Beckemeier,W (2373)-Schlingensiepen,C (2340) Germany 1999}) 16... Na5 17. Bc2 c5 18. Qd3 {Strongly threatening e5.} c4 19. Qd2 Nc6 20. Bb1 Ne7 21. Nf4 Ng6 22. Nxg6 fxg6 23. b3 Bb6 24. Qe2 {[%cal Rb3c4]} cxb3 25. axb3 Rxc1 26. Rxc1 Qe7 27. Qd3 Rf4 {[%cal Rf4e4]} 28. Re1 Qf7 29. e5 {[#] Threatens to win with e6.} Bxf3 30. e6 Qf5 $2 {[%mdl 8192]} (30... Qf6 $11 31. Qxg6 Qxg6 32. Bxg6 Bd8) 31. Qxf3 $18 Qf8 $2 {[#]} (31... Rxf3 {was worth a try.} 32. Bxf5 Rxf5) 32. Qxf4 $1 {[%mdl 576] Promotion. Accuracy: White = 47%, Black = 23%.} 1-0

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.07"]
[Round "9"]
[White "Xiong, Jeffery"]
[Black "Ringoir, Tanguy"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2672"]
[BlackElo "2516"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]

{[%evp 14,104,0,20,19,0,-9,-20,0,-60,22,16,22,16,31,35,46,17,17,-26,14,7,20,0,15,14,14,15,31,15,21,33,86,100,137,132,140,142,141,150,151,136,133,149,141,143,133,0,140,0,142,134,133,140,174,181,146,153,249,141,169,169,396,288,303,308,312,311,268,287,310,299,543,535,535,535,575,573,622,550,550,550,550,545,639,633,638,604,711,711,704,695,957]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. a4 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} (6. Nbd2 a6 7. Bb3 h6 8. Nf1 d5 9. exd5 Nxd5 10. Ng3 O-O 11. O-O Re8 12. Re1 Nf6 13. h3 Be6 14. Bc2 Bd5 15. Nh4 {½-½ (43) Duda,J (2739)-Mamedyarov,S (2820) Batumi 2018}) 6... a5 7. Bg5 h6 8. Bh4 {LiveBook: 9 Games. The position is equal.} Be6 9. Qb3 $146 ({Predecessor:} 9. Nbd2 O-O 10. h3 g5 11. Bg3 Nh5 12. Bh2 Qf6 13. Qe2 Nf4 14. Bxf4 Qxf4 {0-1 (61) Sethuraman,S (2646)-Anton Guijarro,D (2666) Riadh 2017}) 9... Bxc4 10. Qxc4 Qe7 11. Nbd2 ({Better is} 11. O-O $11) 11... Qe6 (11... g5 $15 12. Bg3 O-O) 12. Bxf6 $11 Qxf6 13. Qb5 Ra7 14. O-O O-O 15. Nc4 Qe7 16. Rfe1 Nd8 (16... Nb4 $5 17. Ncxe5 (17. cxb4 c6 $15) 17... dxe5 18. cxb4 axb4 $11) 17. d4 exd4 (17... c6 $5 18. Qb3 $8 exd4 $11) 18. cxd4 c6 19. Qb3 Bb4 20. Re3 Ne6 21. Rd1 Raa8 22. d5 {[%cal Bd4d5,Bd5d6,Bd6d7][%mdl 32]} Nf4 (22... Nc5 $14 23. Qc2 cxd5 24. exd5 (24. Rxd5 Ne6 $11) 24... Qf6) 23. g3 $16 Ng6 24. e5 $1 {[%cal Re5d6]} dxe5 25. d6 Qf6 26. Ncxe5 Nxe5 27. Nxe5 Rad8 28. d7 Bd6 29. Ng4 Qg6 30. Ne5 ({Much less strong is} 30. Qxb7 $6 Bf4 $16) 30... Qf6 31. Ng4 Qg6 32. Red3 Bc5 33. Ne3 $36 {[%cal Bg4e3,Be3c4,Bc4e5][%mdl 2080] Keeping Black busy.} b6 34. Nc4 Qe6 35. Qc3 ({Of course not} 35. Nxb6 $6 Qxb3 36. Rxb3 Rb8 $11) 35... h5 {[#]} (35... f5 $16) 36. b3 (36. Nxa5 $1 $18 {[%mdl 512] Hoping for Nb7.} Bxf2+ (36... bxa5 37. Qxc5) 37. Kxf2 bxa5 38. Qxa5) 36... h4 37. Qe5 $1 h3 $2 (37... Qg4 38. Nxa5 f6) 38. Qxe6 fxe6 39. Ne5 $1 Bxf2+ 40. Kh1 c5 {[#] And now ...Bd4 would win.} 41. Rd6 $1 Bd4 42. Nc6 {[%mdl 64] Double Attack} e5 $2 (42... g6 43. Nxd8 (43. Nxd4 cxd4 44. R6xd4 Rf3 $11) 43... Rxd8 44. Rxe6 Rxd7 45. Rxg6+ Kh7 46. Rxb6 Ra7) 43. Nxd8 $18 {White is clearly winning.} Rxd8 {[%mdl 4096] Endgame [#] KRR-KRB} 44. Rf1 $1 {[%cal Rf1f5]} g5 45. Rf5 e4 {If Black can now play ...e3 this consolidates a bit.} 46. Rxg5+ Kf7 47. Rg4 Be5 48. Rh6 e3 {intending ...e2.} 49. Kg1 Bd4 {( -> ...e2+)} 50. Kf1 Ke7 51. Rh7+ Kd6 52. Ke2 Kd5 {Accuracy: White = 79%, Black = 44%.} 1-0

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.07"]
[Round "9"]
[White "Sevian, Samuel"]
[Black "Bai, Jinshi"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2647"]
[BlackElo "2572"]
[Annotator "TA"]
[PlyCount "144"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,144,19,19,22,6,7,0,0,0,0,-15,-9,-21,-4,-27,-20,-27,-29,-20,-16,-12,-23,-20,-23,-31,-12,-18,-23,-14,-16,-55,-45,-56,-26,-19,-33,-73,-73,-77,-77,-74,-74,-74,-74,-74,-74,-74,-74,-74,-74,-74,-35,-67,-28,-35,-30,-28,-18,-32,-28,-28,-20,-17,-16,-16,0,-16,-22,-35,-35,-35,-35,-35,-35,-35,-35,-35,-35,-81,-81,-83,-74,-70,-74,-70,-70,-164,-164,-184,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-108,-117,-128,-132,-141,-146,-166,-166,-167,-167,-167,-169,-169,-180,-194,-202,-209,-216,-216,-209,-249,0,-282,0]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bf5 7. O-O Be7 8. c4 dxc4 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves} 9. Bxc4 O-O 10. Re1 {LiveBook: 9 Games} Bb4 {The position is equal.} 11. Nbd2 Nd6 12. Bb3 $146 ({Predecessor:} 12. Bf1 Nc6 13. Qa4 Be6 14. a3 Bxd2 15. Bxd2 Bd5 16. Ne5 {1-0 (46) Svidler,P (2760)-Smeets,J (2598) Baden-Baden 2018}) 12... Nc6 13. a3 Ba5 14. Ba4 b5 15. Bc2 Qf6 16. Bxf5 Qxf5 17. b4 Bb6 18. Nf1 Nc4 19. Ne3 Nxe3 20. Bxe3 Qd5 21. Rc1 f6 22. Qc2 Ne7 23. Bf4 Nf5 24. Qe4 Qxe4 25. Rxe4 Rfe8 (25... h5 {with more complications.} 26. h3 Rfe8 27. Rxe8+ Rxe8 28. Bxc7 Nxd4 29. Nxd4 Bxd4 30. Bg3 Bb2) 26. Rxe8+ $1 Rxe8 27. Bxc7 Nxd4 28. Nxd4 Bxd4 $11 {[%mdl 4096] Endgame KRB-KRB} 29. Kf1 Bb2 30. Rb1 Bxa3 31. Bf4 {[#]} Rc8 $1 32. Be3 Rc4 33. Ra1 Bxb4 34. Rxa7 Bd6 35. Ke2 b4 {[#] Threatens to win with ...b3.} 36. Rb7 h5 37. g3 Kh7 38. Kd3 Rc3+ 39. Ke4 Kg6 40. Rb6 Be7 41. Rb7 Bd6 42. Rb6 Bf8 43. h4 Rc7 44. Rb5 Be7 45. Bd2 Rc2 46. Be3 Rc4+ 47. Kd5 Rc8 48. Kd4 Bd6 49. Bd2 Rc2 50. Kd3 Rb2 51. Be3 Be5 52. Rb7 (52. Bc5 $15) 52... b3 $19 53. Bd4 Rb1 $2 (53... Bxd4 $19 54. Kxd4 Rxf2 55. Rxb3 Kf5) 54. Bxe5 $11 fxe5 {KR-KR} 55. Ke4 $1 b2 56. Rb6+ Kh7 {And now ...Re1+ would win.} 57. Kf3 Kg8 58. Rb7 Kf8 59. Kg2 Ke8 {White must now prevent ...Kd8.} 60. Kh2 Kd8 {Strongly threatening ...Kc8.} 61. Kg2 (61. Rb6 $11 {remains equal.} e4 62. Kg2) 61... Kc8 $17 62. Rb4 Kc7 {Hoping for ...e4!} 63. Kh2 Kc6 {aiming for ...e4!} 64. Kg2 Kc5 65. Rb8 Kc4 66. Rb7 Kd3 67. Rb8 e4 68. Rb7 Kd2 69. Rb8 Kc2 70. Rc8+ Kd3 71. Rb8 Kc2 72. Rc8+ $1 Kd3 $2 {Accuracy: White = 69%, Black = 69%.} ({Black should play} 72... Kb3 $19 73. Rb8+ Kc3 74. Rc8+ Kd3) 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.07"]
[Round "9"]
[White "Naroditsky, Daniel"]
[Black "Ynojosa Aponte, Felix Jose"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "2616"]
[BlackElo "2368"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,58,39,33,6,6,6,6,6,6,1,26,0,15,5,4,-85,-78,-110,-111,-278,-301,-253,-69,-421,-284,-272,-267,-256,-264,-277,-273,-263,-276,-506,-500,-505,-503,-481,-482,-440,-307,-295,-296,-295,-270]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. d4 cxd4 6. Nxd4 Qb6 7. Nxc6 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6} bxc6 8. Be2 (8. Bd3 Ng6 9. c4 Bc5 10. Nc3 Qc7 11. Kh1 e5 12. Na4 Bd4 13. c5 d6 14. Be3 dxc5 15. Nxc5 Bxb2 {0-1 (56) Adams,M (2712)-Adhiban,B (2668) Douglas 2018}) 8... Ng6 {LiveBook: 9 Games} 9. Nc3 {White is slightly better.} Be7 10. Na4 Qc7 11. c4 $146 ({Predecessor:} 11. Be3 O-O 12. c4 c5 13. Nc3 Bb7 14. Qd2 Rad8 {½-½ (27) Calugaru,V (2347)-Campian,C (2338) ICCF email 2008}) 11... c5 12. f4 O-O 13. Be3 Bb7 14. Nc3 f5 15. exf5 (15. e5 $11 {keeps the balance.}) 15... Nh4 $17 {[%mdl 64] Double Attack} 16. fxe6 {Nd5 is the strong threat.} Nxg2 17. Nb5 $2 {[#]} (17. Bd2 $17) 17... Qb6 $1 $19 18. Bc1 dxe6 $2 (18... Nh4 $19 {Threatens to win with ...Rad8.} 19. Qxd7 Bf6) 19. Bf3 $2 {[%mdl 8192]} (19. Qd7 $15 Bf6 20. Nd6 Bd4+ 21. Kh1 Nxf4+ {[%mdl 64] Discovered Attack} 22. Nxb7 Nxe2 {[%mdl 64] Discovered Attack} 23. Bg5) 19... Rad8 20. Qe2 {aiming for Bxb7.} Bxf3 ({Inferior is} 20... Nxf4 21. Bxf4 Rxf4 22. Bxb7 $15) 21. Rxf3 Nh4 22. Rh3 {[#]} e5 $1 {[%mdl 512]} 23. Nc3 (23. Qxe5 Qc6) 23... exf4 24. Nd5 $2 {[#]} (24. Bxf4 {only move.} Rxf4 25. Qxe7) 24... Rxd5 $1 {[%mdl 512]} 25. cxd5 Qg6+ 26. Kf1 {Qe6+ would now be nice for White.} Bf6 27. Bxf4 Bd4 {[%csl Gd4][%cal Rg6g1]} 28. Qe6+ Qxe6 29. dxe6 Rxf4+ {Accuracy: White = 32%, Black = 72%.} 0-1

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.07"]
[Round "9"]
[White "Gabuzyan, Hovhannes"]
[Black "Le, Quang Liem"]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "2605"]
[BlackElo "2714"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,94,0,2,-42,-27,-28,15,-27,20,-67,-54,-64,-65,-64,-50,-61,-56,-65,-52,-64,-55,-59,-53,-123,-114,-103,-106,-159,-162,-151,-140,-234,-142,-267,-200,-203,-196,-195,-16,-34,-31,-53,-44,-43,-35,-27,-50,-64,0,-577,-582,-564,-573,-858,-880,-745,-255,-254,-229,-241,-198,-240,-220,-248,-129,-529,-525,-793,-733,-781,-687,-775,-769,-795,-787,-710,-700,-659,-571,-1795,-1713,-29967,-29968,-29979,-29980,-29984,-29985]} 1. Nf3 c5 2. b3 d6 3. c4 e5 (3... g6 4. Bb2 e5 5. g3 Nc6 6. Bg2 Bg7 7. O-O Nge7 8. Nc3 O-O 9. d3 h6 10. Nd2 Be6 11. a3 {½-½ (56) Kramnik,V (2800)-Gelfand,B (2695) Moscow 2018}) 4. Nc3 g6 5. e3 Bg7 6. h4 $146 {A04: Unusual lines after 1 Nf3 and King's Indian Attack} ({Predecessor:} 6. Bb2 Nc6 7. d3 Nge7 8. Be2 O-O 9. h4 h6 10. h5 g5 11. e4 f5 12. Nd2 Nd4 13. Nf1 f4 14. Nh2 Be6 15. Bg4 Bxg4 16. Nxg4 {½-½ (53) Ryan,J (2298)-Garrido Fernandez,D (2287) Barcelona 2013}) 6... Nc6 7. Bb2 f5 8. Be2 {The position is equal.} (8. d4 $5) 8... h6 9. Nd5 ({White should play} 9. d4 $11) 9... Nf6 $15 10. Nxf6+ Qxf6 11. d3 Be6 12. a3 O-O 13. Nd2 d5 14. cxd5 Bxd5 15. Qc2 Bxg2 16. Rg1 (16. Qc4+ $1 $15 Qf7 17. Rg1) 16... Bd5 $17 {[%cal Bg2d5,Bd5f7,Bf7e8][%mdl 32]} 17. Qxc5 Bf7 18. Nc4 ({White should try} 18. Qb5) 18... Rac8 (18... Qxh4 19. Nd6 $15) 19. Qb5 Qe7 ({But not} 19... Qxh4 $6 20. Qxb7 f4 21. Rc1 $15) 20. Bf3 (20. Rc1 $17) 20... Rfd8 21. Rd1 (21. O-O-O $17 {was called for.}) 21... Be8 22. Bxc6 Rxc6 ({Don't do} 22... Bxc6 23. Qb4 $17) 23. Qb4 Qxh4 $2 (23... Rc5 $19 {...b6 is the strong threat.} 24. e4 fxe4 25. dxe4 Rxd1+ 26. Kxd1 b6) 24. Qxb7 $11 Re6 25. Qxa7 Qh2 26. Rf1 g5 27. Qc7 Rd7 28. Qc8 Qg2 (28... f4 $15) 29. d4 $2 {[%mdl 8192]} (29. b4 $11 {and White has nothing to worry.}) 29... exd4 $19 30. Bxd4 Ree7 {[#] And now ...Bxd4 would win.} ({Inferior is} 30... Bxd4 {[#]} 31. Rxd4 $1 {[%mdl 512]} Qb7 32. Qxb7 $14) 31. Kd2 Bxd4 32. exd4 Rxd4+ $2 (32... Qf3 33. Ne3 f4 34. Qc4+ Bf7) 33. Kc3 Rxd1 34. Rxd1 Qxf2 35. a4 g4 {[%cal Bg5g4,Bg4g3][%mdl 32]} 36. Qd8 Re6 (36... Qe2 $19 {Strongly threatening ...f4.} 37. Rd2 Qe4) 37. Rd6 $2 {[%mdl 8192]} (37. Qd3 $17 {was the crucial defense.}) 37... Qe1+ 38. Kb2 g3 39. Rd1 Qe4 40. Ka3 f4 41. Nd6 Qc6 {( -> ...Qc5+)} 42. Nxe8 Qxe8 {KQR-KQR} 43. Qd5 Qe7+ 44. b4 {intending Re1.} Qf7 45. Qa8+ Kh7 {Black mates.} 46. Rd3 Re2 {[%csl Ge2][%cal Rf7a2]} 47. b5 g2 {Accuracy: White = 33%, Black = 58%.} 0-1

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.07"]
[Round "9"]
[White "Dragun, Kamil"]
[Black "Ostrovskiy, Aleksandr"]
[Result "1/2-1/2"]
[ECO "A07"]
[WhiteElo "2578"]
[BlackElo "2439"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,69,17,23,16,12,0,-4,-23,13,0,25,40,56,0,0,0,0,0,0,0,0,0,0,0,14,0,0,7,53,52,65,0,33,33,27,0,13,0,0,0,0,0,0,0,0,-10,0,0,0,0,0,0]} 1. Nf3 d5 2. c4 d4 3. g3 Nc6 4. Bg2 e5 5. O-O Nf6 6. e3 {A07: Réti Opening: New York and Capablanca Systems} Be7 7. d3 O-O 8. exd4 exd4 9. Na3 h6 10. Nc2 a5 {LiveBook: 5 Games} 11. b3 Bg4 12. Re1 Nd7 $146 ({Predecessor:} 12... Qd7 13. Bb2 {0-1 (32) Wenner,T (2226)-Kunin,V (2538) Bad Wiessee 2010}) 13. Rb1 Nc5 14. Ba3 Re8 15. Qd2 Qd6 16. h3 (16. Bxc5 $1 $14 Qxc5 17. Qf4 Bxf3 18. Bxf3) 16... Bf5 $11 17. Bxc5 Qxc5 18. a3 Bf6 19. b4 $36 {[%mdl 2048] White is pushing.} axb4 20. axb4 Qd6 21. b5 Ne7 22. Nh2 c6 23. Ng4 h5 24. Nxf6+ Qxf6 25. Nb4 (25. bxc6 $14 bxc6 26. Rb6) 25... Rab8 26. bxc6 bxc6 27. c5 Bd7 {The position is equal.} 28. Nc2 Rxb1 29. Rxb1 h4 30. Qf4 Qxf4 31. gxf4 Ng6 32. f5 Nf4 33. Nxd4 Nxd3 34. Bxc6 Bxc6 35. Nxc6 {Accuracy: White = 48%, Black = 61%.} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.07"]
[Round "9"]
[White "Stukopin, Andrey"]
[Black "Cordova, Emilio"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2565"]
[BlackElo "2597"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,75,12,23,12,18,12,22,15,15,20,19,20,57,46,47,50,46,50,50,41,91,70,103,103,70,90,118,85,235,228,320,325,489,503,494,474,473,465,551,559,545,560,550,526,796,793,787,787,786,783,786,784]} 1. e4 c5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 g6 5. O-O Bg7 6. Re1 O-O 7. e5 Ng4 8. Bxc6 dxc6 9. d3 Nh6 {[%cal Bg4h6,Bh6f5,Bf5d4][%mdl 32]} 10. h3 Nf5 11. Ne4 b6 12. Bf4 Nd4 13. a4 a5 {LiveBook: 4 Games. B31: Sicilian: 2...Nc6 3 Bb5 g6} 14. Ned2 (14. Nfd2 Ra7 15. Nc4 Bf5 16. Bg3 Ne6 17. Bh2 b5 18. Ncd2 c4 19. dxc4 Rd7 20. Qe2 Bh6 21. Nf3 {½-½ (30) Kryvoruchko,Y (2711)-Wang,H (2707) Al Ain 2015}) 14... h6 $146 ({Predecessor:} 14... Ra7 15. Nxd4 Qxd4 16. Re4 Qd5 17. Nc4 Rb7 18. Qc1 Rd8 19. Bh6 Bf5 20. Re1 Bh8 21. g4 {½-½ (51) Genova,L (2277)-Videnova,I (2258) Dupnitsa 2010}) 15. Nc4 Ra7 {The position is equal.} 16. Nxd4 cxd4 17. Qf3 b5 18. Nd2 {[%cal Bc4d2,Bd2f3,Bf3d4][%mdl 32]} Be6 19. Qxc6 g5 20. Bg3 Rc7 21. Qxb5 Rxc2 22. Nf3 Qa8 23. Nxd4 Rb8 $1 {[%cal Rb8b5]} 24. Nxc2 {[#] Qc5 is the strong threat.} Rxb5 25. axb5 {[%cal Ba4b5,Bb5b6][%mdl 32]} Qd8 26. Ra3 a4 (26... Qb6 $16) 27. Rxa4 $18 Bb3 (27... Qb6 $142 28. Nd4 Bd5) 28. Rb4 Qxd3 ({But not} 28... Bxc2 $2 29. b6 $18) (28... Bd5 $142 29. Ra1 Bb7) 29. b6 {White is clearly winning.} Bd5 {[#] aiming for ...Bb7.} 30. Ne3 Bb7 {And now ...Qd2 would win.} 31. Rd1 Qe2 32. Kh2 h5 33. h4 gxh4 34. Rxh4 Bh6 35. Rd8+ Kh7 36. Nd5 Bxd5 37. Rxd5 Qxb2 38. e6 {Precision: White = 91%, Black = 53%.} 1-0

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.07"]
[Round "9"]
[White "Karthik Venkataraman"]
[Black "Swiercz, Dariusz"]
[Result "1/2-1/2"]
[ECO "A17"]
[WhiteElo "2515"]
[BlackElo "2649"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,79,42,25,38,30,16,16,16,12,45,45,63,48,73,47,47,24,27,34,35,40,41,29,58,44,64,44,56,24,26,25,63,11,4,0,0,-43,41,41,41,31,48,37,55,34,42,55,50,42,51,51,100,55,137,62,56,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 e6 2. c4 d5 3. e3 Nf6 4. Nc3 a6 (4... dxc4 5. Bxc4 a6 6. O-O b5 7. Bb3 Bb7 8. d4 Nbd7 9. Qe2 c5 10. Rd1 Qb8 11. e4 cxd4 12. Nxd4 Bd6 13. g3 O-O 14. f3 Rc8 15. Be3 Nf8 16. Rac1 h5 17. Qd2 Rd8 18. Nce2 h4 19. Bg5 hxg3 20. Bxf6 gxf6 21. Qh6 {1-0 (31) Svidler,P (2756)-Shankland,S (2722) Hoogeveen 2018}) 5. b3 c5 6. cxd5 {A17: English Opening: 1...Nf6 with ...Bb4} exd5 7. d4 cxd4 8. Nxd4 {LiveBook: 4 Games. White is slightly better.} Bd6 9. Be2 O-O 10. Bb2 Re8 11. Rc1 Bc7 12. O-O Qd6 {[%csl Gc7][%cal Rd6h2]} 13. g3 Nc6 14. Bf3 {aiming for Nxd5!} Bh3 15. Re1 {[%cal Bf1e1,Be1e2,Be2c2][%mdl 32]} Ne5 $146 ({Predecessor:} 15... Rad8 16. Nxc6 bxc6 17. Qd4 Qd7 18. Qd3 Be5 19. Na4 Bxb2 20. Nxb2 {½-½ (54) Froewis,G (2439)-Schwabeneder,F (2382) Graz 2017}) 16. Bg2 Bxg2 17. Kxg2 {Black must now prevent Ndb5!} Ba5 18. Re2 h5 19. Rec2 Rad8 20. h3 g6 21. Nf3 Nc6 22. a3 Ne4 23. Ne2 ({Better is} 23. Nd4 $1 $14) 23... Bb6 $11 24. Ned4 Nxd4 25. Nxd4 {[#]} Ba7 (25... Nxg3 $1 $15 {[%mdl 512]} 26. fxg3 Rxe3) 26. h4 $14 Bb8 {Threatens to win with ...Nxf2!} 27. Qf3 Qd7 28. Ne2 Rc8 29. Nf4 Rxc2 30. Rxc2 Qf5 {Threatening ...Ng5.} 31. Qd1 Bxf4 $1 32. exf4 {And now Qd4 would win.} Nd6 33. Rd2 Qe4+ {[#]} (33... Ne4 $1 $14) 34. Qf3 (34. Kh2 $1 $16) 34... Nf5 35. Rxd5 ({White should play} 35. Be5 $14) 35... Ne3+ $1 $11 {The position is equal.} 36. fxe3 {Intending Qxe4 and mate.} Qc2+ {[%mdl 64] Double Attack} 37. Qf2 Qe4+ {[%mdl 64] Double Attack} 38. Qf3 {Threatening mate with Qxe4.} Qc2+ {[%mdl 64] Double Attack} 39. Qf2 Qe4+ {[%mdl 64] Double Attack} 40. Qf3 {Accuracy: White = 65%, Black = 46%.} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.07"]
[Round "9"]
[White "Macieja, Bartlomiej"]
[Black "Bruzon Batista, Lazaro"]
[Result "1/2-1/2"]
[ECO "A38"]
[WhiteElo "2509"]
[BlackElo "2664"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,50,29,22,0,3,0,26,26,35,12,33,36,81,19,43,23,34,8,31,24,72,70,79,75,80]} 1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 6. d4 cxd4 7. Nxd4 O-O 8. O-O Qa5 9. Nc2 d6 10. Bd2 Qh5 11. e4 {A38: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3 Nf6} Ng4 12. h3 Nge5 13. Qxh5 gxh5 14. b3 Bxh3 {[#] LiveBook: 3 Games} 15. Rad1 $146 ({Predecessor:} 15. f4 Bxg2 16. Kxg2 Ng4 17. Rh1 a6 18. Rxh5 Nf6 {0-1 (40) Popov,V (2528)-Lomasov,S (2559) Sochi 2018}) 15... Bd7 16. Nd5 h4 17. gxh4 Kh8 18. f3 Rg8 19. h5 h6 20. Bc3 ({Better is} 20. Be1 $16) 20... Raf8 21. Ba1 Kh7 22. Nce3 Bh8 23. Kf2 Bc8 24. Rh1 Rd8 25. Bf1 e6 {Accuracy: White = 45%, Black =  5%.} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.07"]
[Round "9"]
[White "Escalante Ramirez, Brian Sebasti"]
[Black "Negi, Parimarjan"]
[Result "1/2-1/2"]
[WhiteElo "2446"]
[BlackElo "2656"]
[Annotator "NA RC"]
[PlyCount "13"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 13,13,10]} 1. e4 {[%emt 0:00:00]} e5 {[%emt 0:07:16]} 2. Nf3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:41]} 3. Nxe5 {[%emt 0:00:00]} d6 {[%emt 0:00:38]} 4. Nf3 {[%emt 0:00:02]} Nxe4 {[%emt 0:00:08]} 5. Qe2 {[%emt 0:00:17]} Qe7 {[%emt 0:00:29]} 6. d3 {[%emt 0:00:06]} Nf6 {[%emt 0:00:16]} 7. Bg5 $11 {[%emt 0:00:22] LiveBook: 1446 Games} 1/2-1/2

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.07"]
[Round "9"]
[White "Balakrishnan, Praveen"]
[Black "Ramirez, Alejandro"]
[Result "0-1"]
[ECO "C66"]
[WhiteElo "2418"]
[BlackElo "2567"]
[Annotator "TA"]
[PlyCount "46"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,46,31,19,22,18,4,0,12,1,3,2,0,0,-59,-55,-64,-65,-109,-113,-125,-111,-322,-293,-470,-472,-469,-465,-466,-427,-631,-580,-1401,-1389,-29993,-29994,-29996,-29997]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. O-O a6 (5... Be7 6. c3 O-O 7. Re1 a6 8. Ba4 Re8 9. Nbd2 Bf8 10. Nf1 h6 11. Ng3 b5 12. Bb3 Be6 13. Bxe6 Rxe6 14. a4 b4 15. d4 d5 16. dxe5 Nxe4 17. c4 Nxe5 18. cxd5 Nxf2 19. Kxf2 Ng4+ 20. Kf1 Rxe1+ 21. Qxe1 Qxd5 22. Qe4 Qd1+ 23. Qe1 Qd5 24. Qe4 Qd1+ 25. Qe1 {½-½ (25) Vachier Lagrave,M (2780)-Naiditsch,A (2721) Douglas 2018}) 6. Bxc6+ {C66: Ruy Lopez: Steinitz Defence} bxc6 {LiveBook: 35 Games} 7. Nbd2 g6 $146 ({Predecessor:} 7... Be7 8. c3 c5 9. b3 O-O 10. Bb2 Bb7 11. Qc2 Re8 12. d4 cxd4 13. cxd4 exd4 14. Nxd4 {½-½ (61) Voitsekhovsky,S (2476)-Krasenkow,M (2573) Barlinek 2001}) 8. b4 {The position is equal.} Bg7 9. Nc4 O-O 10. Na5 Qe8 11. Re1 Nh5 {[%cal Bf6h5,Bh5f4,Bf4h3][%mdl 32]} 12. Bb2 (12. h3 $11) 12... f5 $15 13. Nd2 Nf4 14. d4 fxe4 ({Much worse is} 14... exd4 $6 15. exf5 Qd7 16. fxg6 $11) 15. Nxe4 d5 $1 {[%cal Rd5e4]} 16. Ng3 $2 {[#]} (16. Nc5 $17 {was forced.} Qe7 17. Re3) 16... Bh3 $1 $19 {[%mdl 512]} 17. gxh3 $2 (17. dxe5 Nxg2 18. Qd3) 17... Nxh3+ 18. Kg2 Rxf2+ 19. Kh1 {[%cal Rd4e5] [#]} Qe6 $1 {Threatens to win with ...Nf4.} 20. Re2 (20. Re3 $142 Nf4 21. Nf1) 20... Raf8 21. Qd3 Qg4 22. Rg1 Rxe2 23. Qxe2 Nf2+ {Precision: White = 28%, Black = 100%.} 0-1

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.07"]
[Round "9"]
[White "Santarius, Erik"]
[Black "Prohaszka, Peter"]
[Result "0-1"]
[ECO "D20"]
[WhiteElo "2393"]
[BlackElo "2613"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,90,0,0,0,15,29,35,25,21,15,32,-26,128,127,129,128,357,-143,-164,-209,-80,-227,-56,-39,14,2,15,27,23,-193,-37,-31,-23,-188,-185,-220,-90,-36,296,303,287,275,257,0,0,0,0,0,210,0,0,0,0,0,0,0,0,0,0,0,0,-166,-178,-289,-278,-259,-227,-367,-360,-363,-344,-6102,-5815,-5389,-5389,-29981,-29972,-29974,-12574]} 1. d4 d5 2. c4 dxc4 3. e4 e5 4. Nf3 exd4 5. Bxc4 Nc6 6. O-O Bc5 {D20: Queen's Gambit Accepted: 3 e3 and 3 e4} 7. Nbd2 Bb6 {LiveBook: 3 Games} 8. b4 Nge7 {The position is equal.} 9. a4 $146 ({Predecessor:} 9. Ng5 O-O 10. Qh5 h6 11. Nxf7 Rxf7 12. Bxf7+ Kh8 13. Nf3 Qf8 14. b5 {1-0 (59) Le,Q (2737)-Inarkiev,E (2689) Riadh 2017}) 9... a6 $1 10. Ng5 {[%mdl 1024] White has compensation.} Ne5 $1 11. Ba2 (11. f4 $5 {[%cal Rf4e5]} d3+ 12. Kh1 Nxc4 13. Nxc4 $15) 11... O-O {[#]} 12. f4 ({Don't play} 12. Qh5 h6 $15) ({White should try} 12. Nxh7 $1 $14 {[%mdl 512]} Bg4 (12... Kxh7 13. Qh5+) 13. f3 Kxh7 14. fxg4) 12... Ng4 $2 (12... Bg4 $11 13. Bxf7+ Nxf7 14. Qxg4 Nxg5 15. Qxg5 Nc6) 13. f5 $16 d3+ 14. Kh1 {[#]} Bxf5 $1 {[%mdl 512]} 15. Bb2 $2 (15. exf5 $18 Qd4 {[%mdl 64] Double Attack} 16. Nde4 Qxa1 17. Qxg4 Qxa2 18. Nxh7 $1 {[%mdl 512]}) 15... Qd6 $1 $17 {[%csl Gg4,LRb4,LRh2][%cal Rd6h2][%mdl 64] Double Attack} 16. g3 Qh6 (16... Ne3 $1 $19 {[%cal Re3d1]} 17. Qb3 Qg6 18. Qxf7+ Rxf7 19. Bxf7+ Qxf7 $1 {[%mdl 512]} 20. Nxf7 Nxf1 21. Rxf1 Bh3) 17. Ndf3 (17. h4 $17 Ne3 18. Qb3 Nxf1 19. Rxf1) 17... Ne3 $2 (17... Bg6 $19 {Strongly threatening ...Nxh2!} 18. Qxd3 Nc6) 18. Qxd3 $15 Nxf1 (18... Bg6 $15 19. Rfe1 Ng4) 19. Rxf1 $11 Bg6 $1 {Threatens to win with ...Nc6.} 20. a5 $36 {[%mdl 2048] White has some pressure.} Ba7 {Hoping for ...Nc6.} 21. h4 $2 (21. Bc1 $1 $11 Rad8 22. Qc2) 21... Rad8 $2 ({Black should play} 21... Nc6 $1 $19 {[%cal Rc6b4]} 22. Qc3 Kh8) 22. Qc3 $15 Nc6 23. Bd5 $2 (23. Kh2 $11) 23... Bh5 $1 $19 24. Kg2 Kh8 (24... Qg6 $1 $19 {And now ...h6 would win.} 25. Bxc6 Bxf3+ 26. Nxf3 bxc6) 25. Kh3 $17 Bxf3 $4 {[%mdl 8192]} (25... f6 $15 {stays ahead.} 26. Ne6 Qg6 27. Nxf8 Rxf8) 26. Qxf3 $18 f6 ({Not} 26... Nxb4 $2 27. Qxf7 $1 {[%mdl 512]} Qf6 28. Bxf6 $18) 27. Bxc6 bxc6 {[#]} 28. Ne6 $2 (28. e5 $1 $18) 28... Qd2 $1 $11 {[%cal Rd2b2]} 29. Bc3 Qd7 30. Qg4 Rfe8 $2 (30... Kg8 $1 $11 {and Black stays safe.}) 31. Rd1 $2 ({White must play} 31. Nxd8 $18 Qxd8 32. Rd1) 31... Qe7 32. Nxd8 Rxd8 33. Rxd8+ Qxd8 34. Qe6 h5 {White must now prevent ...Qd1.} 35. e5 {[%cal Re5f6]} Qd1 {[%cal Rd1h1]} 36. Qxc6 {[%mdl 64] Double Attack} fxe5 37. Qa8+ $2 (37. Bxe5 $11 {and White is okay.} Qg4+ 38. Kh2) 37... Kh7 $19 38. Qe4+ (38. Qb7 {might work better.}) 38... g6 39. Be1 Bd4 40. b5 (40. Kh2 {was worth a try.}) 40... axb5 41. a6 {[#]} b4 $1 {[%cal Bb5b4,Bb4b3][%mdl 32]} 42. Kg2 $2 (42. a7 Bxa7 43. Qxb4 Qd7+ 44. Kh2) (42. Bxb4 Qf1+) 42... b3 43. a7 Bxa7 44. Qxe5 Qc2+ 45. Kh1 Qc5 {Accuracy: White = 37%, Black = 36%.} 0-1

[Event "Bay Area Open 2019"]
[Site "Burlingame"]
[Date "2019.01.07"]
[Round "9"]
[White "Kiewra, Keaton"]
[Black "Quesada Perez, Yuniesky"]
[Result "0-1"]
[ECO "E08"]
[WhiteElo "2362"]
[BlackElo "2642"]
[Annotator "TA"]
[PlyCount "138"]
[EventDate "2019.01.01"]
[EventType "swiss"]
[EventCountry "USA"]

{[%evp 21,138,0,12,-14,36,12,26,16,6,-8,12,-7,46,16,58,57,55,57,53,39,78,83,83,75,117,73,190,201,260,232,225,215,364,370,495,475,485,352,344,345,328,336,345,328,341,346,333,310,404,81,116,13,23,10,29,-13,-13,-13,-13,-13,-13,-13,-13,-13,-13,-46,-33,-48,-27,-47,-21,-25,0,0,0,-28,-30,-101,-85,-162,-169,-150,0,-139,-137,-285,-79,-181,-161,-457,-448,-1054,-644,-585,-321,-360,-369,-352,-285,-282,0,-312,-236,-653,-452,-521,0,-444,0,-503,-497,-1746,-1182,-5393,-5389,-2537,-3886,-5273,-5185]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O Nbd7 7. Qc2 c6 8. Rd1 b6 9. b3 a5 {E08: Closed Catalan: Main Line: 7 Qc2} (9... Ba6 10. a4 c5 11. a5 Qc8 12. Ba3 Re8 13. Nc3 bxa5 14. Na4 dxc4 15. bxc4 Bb7 16. Qd2 Nb6 17. Bxc5 Ne4 18. Qxa5 Nxa4 19. Rxa4 Nxc5 20. dxc5 Bxc5 {½-½ (27) Jakovenko,D (2710)-Grandelius,N (2653) Germany 2018}) 10. Nc3 Ba6 11. Nd2 b5 {LiveBook: 3 Games. The position is equal.} 12. e4 {[%cal Re4d5]} Nb6 {[%cal Rb5c4]} 13. c5 b4 $146 ({Predecessor:} 13... Nbd7 14. e5 Ne8 15. Re1 Nc7 16. f4 f6 17. Nf3 fxe5 18. fxe5 {½-½ (30) Minero Pineda,S (2400)-Murillo Tsijli,A (2365) Costa Rica 1997}) 14. Ncb1 Nbd7 15. e5 Ne8 16. Re1 Nc7 (16... f6 $11) 17. f4 Qb8 18. Nf3 Qb5 19. Bf1 $36 {[%mdl 2048] White is more active.} Qb7 20. Bh3 Bb5 21. a4 bxa3 22. Nc3 g6 23. g4 {[%cal Bg3g4,Bg4f5][%mdl 32]} Kh8 (23... Ba6 $16) 24. f5 $18 (24. Rxa3 $6 Na6 $16) (24. Bxa3 $6 f5 $16) 24... gxf5 25. gxf5 Rg8+ 26. Kh1 Na6 (26... exf5 $142 27. Qxf5 (27. Rxa3 Nf8 $16) 27... Nf8 28. Nxb5 (28. Qxf7 Ng6 $16) (28. Bxa3 Ba6 $16) (28. Rxa3 Nfe6 $16) 28... Nxb5) 27. Bxa3 Nf8 28. Rg1 exf5 29. Qxf5 Ng6 30. Ng5 Bxg5 31. Rxg5 Nc7 32. Bc1 (32. Qxf7 Rgf8 $11) 32... Ba6 33. Rh5 (33. Rxa5 Qb4 $11) (33. Qxf7 Raf8 $11) 33... Rg7 34. Bh6 (34. Rxa5 Qb4 $11) 34... Ne8 35. Na4 $2 (35. Qf3 $18 {is more deadly.}) 35... Qxb3 $16 36. Nb6 (36. Bxg7+ $2 Nxg7 37. Qf6 Be2 $19) (36. Qf2 $1 $16) 36... Bd3 $1 $11 {[%cal Rd3f5]} 37. Qf2 $1 ({Much worse is} 37. Bxg7+ Nxg7 38. Qf2 (38. Qf6 $2 Be4+ 39. Bg2 Bxg2+ 40. Kxg2 Qb2+ 41. Kh3 Qxa1 $19) 38... Nxh5 $15) 37... Nf4 38. Bf5 ({But not} 38. Qxf4 $2 Be4+ 39. Qxe4 (39. Bg2 $2 Rxg2 40. Qxe4 dxe4 $19) 39... dxe4 $19) (38. Re1 {is more complex.} Nxh5 39. Bxg7+ Nexg7 40. Nxa8 h6 41. Nb6) 38... Nxh5 39. Bxd3 $1 Qxd3 40. Bxg7+ Nexg7 41. Nxa8 Qe4+ 42. Qg2 $1 {[%cal Rg2e4] Threatens to win with Qxe4.} Qxd4 {[%mdl 64] Double Attack} 43. Rb1 {Rb8+ would kill now.} Qxe5 44. Nb6 Qf5 45. Rg1 h6 46. Qg4 Qe5 47. Nd7 Qe7 48. Nb6 Kh7 49. Qd4 (49. Qf3 $11 {keeps the balance.}) 49... Qe6 $17 50. Qg4 (50. Qh4 $17 {might work better.}) 50... f5 $1 $19 {[%cal Rf5g4]} 51. Qg2 f4 (51... Qe4 $17 {White must now prevent ...Ne6.} 52. Nd7 Ne6) 52. Qf3 (52. Nd7 $1 $11 Kh8 53. Nf8) 52... Kh8 $17 53. Kg2 {[#]} (53. Rf1 $17) 53... Qe7 $2 (53... Nf5 $1 $19 {[%cal Rf5h4] has better winning chances.} 54. Kh1 Ne3) 54. Rc1 (54. Nc8 $17 Qxc5 55. Re1) 54... Qe5 55. Rg1 $2 (55. Kh1 {was the only defense.}) 55... Nf5 $19 56. Kh3 (56. Kh1 $142 Nh4 57. Qd3) 56... Nd4 57. Qg4 {[%csl Gg1][%cal Rg4g8]} Qe3+ 58. Kg2 Nf6 59. Qc8+ Ne8 {[%csl Gd4][%cal Re3f3]} 60. Qg4 Nf6 61. Qc8+ Kh7 {[%csl Gd4][%cal Re3f3]} 62. Kh1 $2 (62. Qb7+ Kg6 63. Kh1+ Kf5 64. Nc8) 62... Qe4+ 63. Rg2 {White threatens Qc7+ and mate.} Qe1+ 64. Rg1 Qe4+ 65. Rg2 {[#] White wants to mate with Qc7+.} Qe7 $1 {Strongly threatening ...f3.Black is clearly winning.} 66. Qa6 (66. Qh3 $142 f3 67. Rf2) 66... f3 67. Rg3 Ne4 {( -> ...Nf2+)} 68. Qd3 Qf6 69. Nd7 Qf5 {Accuracy: White = 31%, Black = 51%.} 0-1

