[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.21"]
[Round "1.1"]
[White "Kiewra, Keaton"]
[Black "Proleiko, Julian"]
[Result "1/2-1/2"]
[ECO "D10"]
[WhiteElo "2372"]
[BlackElo "2170"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,67,20,0,36,13,18,0,0,0,0,0,16,8,5,0,0,0,0,0,24,0,4,-40,-13,-62,-63,-72,-70,-64,-74,-73,-72,-66,-64,-61,-63,-78,-79,-73,-72,-76,-70,-75,-74,-72,-73,-86,-72,-71,-50,-85,-79,-80,-72,-72,0,-79,-81,-85]} 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Ne5 Nd7 {D13: Slav Defence: Exchange variation without ...Bf5} (6... e6 {feels hotter.} 7. a3 Be7 8. Bf4 Nh5 9. Bd2 Nf6) (6... e6 7. Nxc6 bxc6 {½-½ (7) Kurajica,B (2555)-Predojevic,B (2652) Banja Vrucica 2009}) 7. Nxc6 bxc6 8. g3 e6 {The position is equal.} 9. Bg2 Be7 10. O-O O-O 11. Bf4 a5 $146 ({Predecessor:} 11... Ba6 12. Qa4 Bb7 13. Rac1 Nb6 14. Qb3 {1-0 (44) Sambuev,B (2522)-Niemann,H (2254) Calgary 2017}) 12. e4 Ba6 13. Re1 Nf6 14. Rc1 dxe4 15. Nxe4 Nd5 16. Bd2 Qb6 17. Qc2 Qxd4 18. Bxa5 Bd3 19. Qd2 {[#]} Rxa5 $1 {[%mdl 576] Decoy} 20. Qxa5 Bb4 {[%mdl 64] Double Attack} 21. Qa4 {Strongly threatening a3.} Qxb2 22. Red1 Be2 23. Qxc6 {[#] Black must now prevent Rc2.} Bxd1 24. Rxd1 Qxa2 25. Rc1 Qb2 26. Qc2 Qe5 27. h4 g6 28. Qc4 Rb8 29. Ng5 Be7 30. Nf3 Qb2 31. Rc2 Qb1+ 32. Rc1 Qb2 33. Rc2 $1 {[%cal Rc2b2]} Qa1+ 34. Rc1 {Accuracy: White = 57%, Black = 77%.} 1/2-1/2

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.21"]
[Round "1.2"]
[White "Torres Rosas, Luis Carlos"]
[Black "Krykun, Yuriy"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2360"]
[BlackElo "2382"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,71,20,24,-30,-27,-58,-12,-12,0,-14,-15,-16,-12,-19,104,96,100,97,110,108,119,99,117,92,97,90,96,72,108,83,100,80,101,64,114,68,71,47,47,47,130,133,374,377,372,363,583,576,592,582,586,586]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e3 a6 6. a4 c5 7. Bxc4 Nc6 8. O-O Be7 9. Qe2 cxd4 10. Rd1 e5 11. exd4 exd4 12. Ne5 {D27: Queen's Gambit Accepted: Classical main line: 7 e4!? and 7 a4} (12. Nxd4 $142 Nxd4 13. Qe5) 12... O-O $11 13. Bf4 {[#]} Na5 $146 (13... Bd7 $5 14. Nd5 Nxd5 15. Bxd5 Bf6 $15) ({Predecessor:} 13... Bd7 14. Nd5 Nxd5 15. Bxd5 Bf6 16. Nc4 Re8 17. Qh5 Be6 18. Bxc6 bxc6 19. Nd6 Re7 {1-0 (32) Jianu,V (2506)-Popov,V (2589) Dresden 2007}) 14. Ba2 {The position is equal.} Bf5 15. Nxf7 Rxf7 16. Qe5 Bd7 17. Qxd4 Bg4 {[#]} (17... Qf8 $11) 18. Qe5 $1 $16 Bxd1 19. Rxd1 ({Avoid the trap} 19. Bxf7+ $2 Kxf7 20. Rxd1 Qb6 $19) 19... Qf8 {...Nc6 is the strong threat.} 20. Qxa5 Rd8 21. Qb6 {aiming for Rxd8.} Rxd1+ 22. Nxd1 Qd8 23. Qxd8+ Bxd8 24. Ne3 g6 25. Bh6 {[%mdl 1024] White has strong compensation.} Bb6 26. Be6 Ne4 27. a5 Bd4 28. b3 Nc5 29. Bc4 Bg7 30. Bf4 Bc3 {[#]} (30... Nd3 $14 31. Bd6 (31. Bxf7+ Kxf7 32. Bg5 h6 $11) 31... Nb2) 31. Ng4 $1 {[%cal Rg4h6] Black must now prevent Nh6+.} (31. Bxf7+ Kxf7 32. Nc4 Nxb3 $17) 31... Kg7 $2 (31... Bg7 $16 {was called for.} 32. Nh6+ Bxh6 33. Bxh6 Nd7) 32. Bh6+ $18 Kg8 33. Be3 Nd7 $2 (33... Kg7 {is a better defense.} 34. Bxf7 (34. Bxc5 Rd7 $18) 34... Kxf7) 34. Nh6+ {[%mdl 64] Double Attack, Pin. White is clearly winning.} Kf8 {Strongly threatening ...Re7.} 35. Nxf7 Bxa5 36. Ng5 {Accuracy: White = 58%, Black = 25%.} 1-0

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.21"]
[Round "1.3"]
[White "Stearman, Josiah"]
[Black "Cervantes Landeiro, Thalia"]
[Result "1-0"]
[ECO "D70"]
[WhiteElo "2341"]
[BlackElo "2227"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,87,42,44,35,23,44,30,22,39,30,27,47,-6,-8,-5,112,121,137,130,114,0,79,87,79,93,86,86,86,92,103,-22,-10,-20,69,75,318,0,0,0,0,0,0,0,0,0,0,0,14,0,30,26,53,58,66,72,123,120,137,132,215,212,392,394,544,534,500,372,368,354,352,347,624,613]} 1. d4 Nf6 2. c4 g6 3. f3 d5 4. cxd5 Nxd5 5. e4 Nb6 6. Nc3 Bg7 7. Be3 O-O 8. Qd2 Nc6 9. O-O-O $1 Qd6 {D70: Grünfeld: Unusual White 3rd moves (met by ...d5)} (9... f5 10. e5 f4 11. Bf2 Nb4 12. a3 a5 13. h4 Be6 14. Nh3 Na2+ 15. Nxa2 Bxa2 16. d5 Qxd5 17. Qxd5+ Nxd5 {½-½ (36) So,W (2754)-Carlsen,M (2875) Stavanger 2019}) 10. Kb1 Rd8 {[%cal Rg7d4]} 11. Nb5 Qd7 {White should prevent ...a6.White has an edge.} 12. d5 a6 13. Nc3 Qe8 14. Qe1 ({White should try} 14. Qc1 $14 Ne5 15. Be2) 14... Na7 $11 15. h4 {[#]} e6 $146 (15... Nb5 $1 $11) ({Predecessor:} 15... Nb5 16. Nge2 Nc4 17. Bd4 Nxd4 18. Nxd4 {½-½ (40) Gelfand,B (2740)-Caruana,F (2757) Zuerich 2013}) 16. h5 $1 $16 Qe7 17. hxg6 fxg6 18. Qg3 (18. Bd3 $16) 18... exd5 (18... Bxc3 $1 $11 {keeps the balance.} 19. bxc3 Na4) 19. Bxb6 $1 cxb6 20. Nxd5 Rxd5 21. Rxd5 Be6 22. Qd6 $1 {[%cal Rd6e7]} Qf6 {[%csl Gg7][%cal Rf6b2] [#]} 23. e5 (23. Rd2 $1 $16) 23... Qf7 $11 24. Bc4 $1 Qf5+ (24... Bf8 $2 {[#]} 25. Qxe6 $1 {[%mdl 512]} Qxe6 26. Rd4 $18) ({Black should play} 24... Re8 $11 25. Bb3 Nc6) 25. Ka1 $1 $14 {And now Ne2 would win.} Rc8 $2 (25... Bxd5 $16 26. Bxd5+ (26. Qxd5+ Kh8 $11) 26... Kh8) 26. Qe7 $2 ({Not} 26. Qxb6 Rxc4 27. Rd8+ Bf8 $17) (26. Nh3 $18 Bf8 27. g4) 26... Bxd5 $11 27. Bxd5+ Kh8 {[%cal Rc8c1]} 28. Nh3 Bxe5 ({Wrong is} 28... Qxe5 $2 29. Qxe5 Bxe5 30. Ng5 $18) 29. Be4 $40 {[%mdl 128] White wants to mate with Ng5. White mounts an attack.} Qf6 30. Qxf6+ Bxf6 31. Nf4 {Nxg6+ is the strong threat.} Kg7 32. Kb1 Be5 33. Nd3 Bf6 34. Bxb7 Re8 35. Bxa6 Re2 (35... Nc6 $142) 36. Rc1 $16 Kh6 37. a4 Kg5 (37... Kg7 $16 38. Rc7+ Re7 39. Rxe7+ Bxe7) 38. f4+ $18 Kh4 $2 (38... Kf5 39. g4+ Kxg4) 39. Rh1+ Kg3 {If Black can now play ...Re7 this consolidates a bit.} 40. Bb7 Rd2 41. Kc1 Rxd3 42. Rh3+ Kxf4 {Threatens to win with ...Rxh3.} 43. Rxd3 h5 $2 (43... Ke5 44. Rd7 h6) 44. Rd6 {Accuracy: White = 68%, Black = 36%.} 1-0

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.21"]
[Round "1.4"]
[White "Polgar-Shutzman, Tom"]
[Black "Grabinsky, Aaron"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "2234"]
[BlackElo "2338"]
[Annotator "TA"]
[PlyCount "186"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,186,1,10,33,25,25,14,73,77,70,52,79,44,67,45,93,89,90,88,143,153,125,68,68,68,76,74,88,28,15,25,53,41,66,71,106,39,58,31,60,56,69,8,8,8,8,8,14,13,19,0,0,-14,-12,-18,-20,-43,-43,-46,-33,-33,-33,-44,-29,-83,-18,-18,-12,-12,-12,-12,-12,-12,-12,-12,0,-12,-12,-12,-12,-12,-12,-27,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-70,-70,-80,-81,-81,-73,-63,-63,-75,-83,-80,-83,-110,-52,-144,-153,-4618,-4614,-29971,-29974,-29974,-29975,-29979,-29980,-29980,-29981,-29981,-29982,-29983,-29984,-29984,-29985,-29985,-29986]} 1. Nf3 Nf6 2. c4 d6 3. d4 g6 4. b3 Bg7 5. Bb2 O-O 6. g3 Nbd7 7. Bg2 Rb8 {E60: King's Indian: Unusual lines and Fianchetto Variation without Nc3} (7... c6 8. O-O Re8 9. Nc3 e5 10. e4 exd4 11. Nxd4 Nc5 12. Re1 Ng4 13. h3 Ne5 14. Re3 Qb6 15. Nc2 a5 16. Bf1 Be6 17. Rb1 a4 18. b4 Ncd7 19. Na3 Qxb4 20. Bc1 {½-½ (41) Caruana,F (2816)-Grischuk,A (2766) Paris 2018}) 8. O-O a6 9. Qc2 c6 (9... c5 $11) 10. e4 $16 Qc7 $146 ({Predecessor:} 10... b5 11. e5 Ne8 12. Re1 Nb6 13. cxb5 cxb5 14. Nc3 Bb7 15. Qe2 Nc7 16. h4 {1-0 (45) Klaric,Z (2400)-Petit,E (2265) Bordeaux 1990}) 11. Nbd2 c5 12. d5 (12. e5 $5 {[%cal Re5f6]} Nh5 13. exd6 exd6 14. a4 $16) 12... b5 13. Rfe1 bxc4 14. Nxc4 Nb6 15. Nfd2 Nfd7 (15... Nxc4 $142 16. Nxc4 Nd7) 16. Bxg7 Kxg7 17. Rad1 (17. Qc3+ $16 Kg8 18. f4) 17... Nxc4 $14 18. Nxc4 Nb6 19. Qc3+ Kg8 20. Nxb6 (20. Na5 $16) 20... Qxb6 $11 21. e5 Bg4 22. Rc1 Qb4 23. Qe3 {Threatens to win with Rc4.} Bd7 24. Qh6 (24. Rc4 $16 Qa5 25. Rc2) 24... Bf5 $14 25. Re2 {Hoping for Rc4.} Qg4 26. Rd2 f6 27. Rc4 (27. exd6 $14 exd6 28. h4) 27... Qg5 $11 28. Qxg5 fxg5 29. Ra4 Rb6 30. Bf1 Bc8 31. exd6 exd6 32. Re4 Bd7 33. Re7 Rf7 $1 {[%cal Rf7e7]} 34. Rde2 a5 35. R2e4 Rb4 36. Bc4 Kf8 37. Rxf7+ Kxf7 $15 {[%mdl 4096] Endgame KRB-KRB} 38. g4 (38. f3 $11 {keeps the balance.}) 38... a4 (38... Bb5 $1 $17) 39. Kg2 $11 axb3 40. axb3 Rb8 41. h3 Kf6 42. Re2 Ra8 43. Kh2 Ra1 44. Kg2 h5 45. f3 Ra8 46. Kf2 h4 47. Kg2 Rd8 48. Kf2 Be8 49. Re6+ Kg7 50. Re7+ Bf7 51. Ra7 Kf6 52. Rb7 Bg8 53. Ra7 Ke5 54. Re7+ Kf6 55. Ra7 Re8 56. Ra2 Re7 57. Ra1 Bf7 58. Ra2 Rb7 59. Ra1 Ke5 60. Re1+ Kf6 61. Ra1 Rb8 62. Ra2 Re8 63. Ra1 Ke5 64. Ra2 Kd4 65. Ra1 Re7 66. Ra6 Rd7 67. Ra1 Rd8 68. Ra2 Bg8 69. Ra1 Re8 70. Ra6 Rd8 71. Ra1 Rf8 72. Ra2 Rb8 73. Ra6 Ke5 74. Ra1 Bf7 75. Re1+ Kf6 76. Ra1 Be8 77. Ra5 (77. Ra2 $11) 77... Ke5 $1 $15 78. Ra1 {[#]} Bb5 $1 79. Re1+ Kd4 80. Re4+ Kc3 81. Re3+ Kb4 82. Re6 Bxc4 83. bxc4 $17 {KR-KR} Rb6 84. Rxg6 Kxc4 85. Rxg5 $2 {[#]} (85. Ke3 $17) 85... Kd3 $1 $19 86. Rg8 Rb2+ {Black mates.} 87. Kg1 c4 88. g5 c3 89. Rc8 c2 90. g6 Rb1+ 91. Kf2 c1=Q 92. Rxc1 Rxc1 93. g7 Rc8 {Accuracy: White = 67%, Black = 61%.} 0-1

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.21"]
[Round "1.5"]
[White "Gauri, Shankar"]
[Black "Arias Santana, Mauricio"]
[Result "1/2-1/2"]
[ECO "A43"]
[WhiteElo "2340"]
[BlackElo "2292"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,89,45,23,36,27,32,24,31,39,40,40,40,20,28,26,23,34,56,47,52,52,54,39,56,59,52,45,70,60,72,60,95,50,33,-2,0,0,0,0,8,0,3,2,10,-22,60,0,6,-11,0,-9,-10,-21,0,-18,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 c5 3. d5 g6 4. Nc3 Bg7 5. e4 d6 6. Bb5+ Bd7 7. a4 O-O 8. O-O Bxb5 9. axb5 Nbd7 10. h3 Ne8 {A43: Schmid Benoni} 11. Bg5 (11. Qe2 Nc7 12. Bf4 Nb6 13. Rfd1 Qd7 14. e5 f6 15. exd6 exd6 16. Ra5 Rfe8 17. Qd3 f5 18. Rda1 {½-½ (40) Navara,D (2725)-Martinovic,S (2550) Tallinn 2016}) 11... Nc7 12. Qd2 Nb6 {White has an edge.} 13. Bh6 Qd7 14. Bxg7 Kxg7 15. Qe2 a6 $146 ({Predecessor:} 15... f6 16. Nd2 a6 17. bxa6 Rxa6 18. b3 Rxa1 19. Rxa1 {1-0 (51) Langheinrich,F (2444)-Kasparova,T (2132) Davos 2014}) 16. bxa6 Rxa6 17. Rxa6 bxa6 18. Ra1 Ra8 19. Ra5 e6 20. dxe6 Qxe6 21. b3 Re8 22. Qd2 Re7 23. Ra1 h6 24. Rd1 Nb5 25. Nxb5 (25. Qd3 {keeps more tension.} Rb7 26. Nd2 Nd7 27. f4 Nf6 28. Nc4) 25... axb5 26. Kh2 ({Don't go for} 26. Qxd6 $2 Rd7 $19) 26... Nc8 27. Re1 b4 28. Kg1 Kh7 29. Qf4 Na7 30. e5 d5 31. Ra1 Nb5 (31... Nc6 $11) 32. Ra5 (32. Qh4 $1 $14 Kg7 33. Ra5) 32... Nc3 $11 {The position is equal.} 33. Qh4 Ne4 34. Ra8 Kg7 35. Qf4 g5 36. Qc1 Qf5 37. Qa1 h5 {[#] White must now prevent ...g4.} 38. Qa5 {And now Qd8! would win.} Rd7 {Threatens to win with ...g4.} 39. Qb6 {Hoping for Qb8.} Qf4 40. Qb8 Qc1+ 41. Kh2 Qf4+ 42. Kg1 Qc1+ 43. Kh2 Qf4+ 44. Kg1 Qc1+ 45. Kh2 {Accuracy: White = 65%, Black = 61%.} 1/2-1/2

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.22"]
[Round "2.1"]
[White "Proleiko, Julian"]
[Black "Arias Santana, Mauricio"]
[Result "1/2-1/2"]
[ECO "A43"]
[WhiteElo "2170"]
[BlackElo "2292"]
[Annotator "ChessBase"]
[PlyCount "77"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:01:33]} 2. Nf3 {[%emt 0:00:00]} c5 {[%emt 0:00:05]} 3. d5 {[%emt 0:00:00]} g6 {[%emt 0:00:31]} 4. Nc3 {[%emt 0:00:00]} Bg7 {[%emt 0:00:06]} 5. e4 {[%emt 0:00:05]} d6 {[%emt 0:00:03]} 6. Be2 {[%emt 0:00:06]} O-O {[%emt 0:00:08]} 7. O-O {[%emt 0:00:04]} Bg4 {[%emt 0:00:07]} 8. Nd2 {[%emt 0:00:20]} Bxe2 {[%emt 0:00:07]} 9. Qxe2 {[%emt 0:00:03]} Nbd7 {[%emt 0:00:18]} 10. Nc4 {[%emt 0:00:19]} Ne8 {[%emt 0:05:08]} 11. Bf4 {[%emt 0:01:42]} f6 {[%emt 0:00:27]} 12. Bg3 {[%emt 0:02:57]} Nc7 {[%emt 0:00:10]} 13. a4 {[%emt 0:00:08]} Ne5 {[%emt 0:04:26]} 14. Nxe5 {[%emt 0:00:56]} fxe5 {[%emt 0:00:09]} 15. Nd1 {[%emt 0:06:33]} Qd7 {[%emt 0:05:15]} 16. Ne3 {[%emt 0:00:18]} Ne8 {[%emt 0:09:34]} 17. f3 {[%emt 0:12:43]} Nf6 {[%emt 0:00:21]} 18. Qb5 {[%emt 0:00:53]} Qc8 {[%emt 0:01:20]} 19. Bh4 {[%emt 0:03:04]} Bh6 {[%emt 0:08:39]} 20. Qe2 {[%emt 0:04:34]} Rf7 {[%emt 0:03:14]} 21. Ng4 {[%emt 0:03:53]} Bg7 {[%emt 0:10:31]} 22. Nxf6+ {[%emt 0:01:44]} exf6 {[%emt 0:01:57]} 23. c3 {[%emt 0:02:02]} f5 {[%emt 0:04:02]} 24. Bg5 {[%emt 0:00:12]} Qd7 {[%emt 0:09:25]} 25. Qb5 {[%emt 0:01:09]} Raf8 {[%emt 0:02:09]} 26. Qxd7 {[%emt 0:00:13]} Rxd7 {[%emt 0:00:01]} 27. Be3 {[%emt 0:00:28]} Rc8 {[%emt 0:01:33]} 28. Kf2 {[%emt 0:00:51]} h5 {[%emt 0:00:07]} 29. Ke2 {[%emt 0:00:15]} Kh7 {[%emt 0:00:16]} 30. g4 {[%emt 0:08:46]} hxg4 {[%emt 0:06:00]} 31. fxg4 {[%emt 0:00:11]} f4 {[%emt 0:00:02]} 32. Bf2 {[%emt 0:00:16]} Bf6 {[%emt 0:00:02]} 33. h4 {[%emt 0:00:15]} Bd8 {[%emt 0:00:04]} 34. Kf3 {[%emt 0:00:37]} Ba5 {[%emt 0:02:31]} 35. g5 {[%emt 0:03:14]} Kg7 {[%emt 0:07:15]} 36. Kg4 {[%emt 0:00:40]} Rdd8 {[%emt 0:01:32]} 37. Rh1 {[%emt 0:00:24]} Rh8 {[%emt 0:00:02]} 38. Rh3 {[%emt 0:01:12]} c4 {[%emt 0:00:59]} 39. Rah1 {[%emt 0:01:00]} 1/2-1/2

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.22"]
[Round "2.2"]
[White "Grabinsky, Aaron"]
[Black "Gauri, Shankar"]
[Result "1/2-1/2"]
[ECO "C24"]
[WhiteElo "2338"]
[BlackElo "2340"]
[Annotator "ChessBase"]
[PlyCount "97"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:00]} e5 {[%emt 0:00:41]} 2. Bc4 {[%emt 0:00:09]} Nf6 {[%emt 0:00:14]} 3. d3 {[%emt 0:00:06]} Bc5 {[%emt 0:01:59]} 4. Nf3 {[%emt 0:02:26]} d6 {[%emt 0:01:24]} 5. c3 {[%emt 0:01:06]} O-O {[%emt 0:17:44]} 6. O-O {[%emt 0:00:58]} Bb6 {[%emt 0:01:30]} 7. Re1 {[%emt 0:01:12]} Re8 {[%emt 0:04:17]} 8. Nbd2 {[%emt 0:01:49]} Nbd7 {[%emt 0:03:00]} 9. Bb3 {[%emt 0:01:46]} c6 {[%emt 0:02:53]} 10. Nf1 {[%emt 0:00:55]} Nf8 {[%emt 0:18:16]} 11. Ng3 {[%emt 0:00:42]} Be6 {[%emt 0:02:43]} 12. Bc2 {[%emt 0:06:05]} h6 {[%emt 0:02:55]} 13. h3 {[%emt 0:02:05]} c5 {[%emt 0:09:56]} 14. Nh4 {[%emt 0:04:18]} d5 {[%emt 0:06:01]} 15. Qf3 {[%emt 0:03:34]} d4 {[%emt 0:03:10]} 16. c4 {[%emt 0:02:34]} Ng6 {[%emt 0:03:58]} 17. Nhf5 {[%emt 0:02:24]} Bc7 {[%emt 0:00:46]} 18. Ba4 {[%emt 0:03:33]} Rf8 {[%emt 0:00:32]} 19. Nf1 {[%emt 0:10:16]} Bxf5 {[%emt 0:13:24]} 20. exf5 {[%emt 0:00:13]} Nh4 {[%emt 0:00:05]} 21. Qxb7 {[%emt 0:00:45]} Rb8 {[%emt 0:00:23]} 22. Qa6 {[%emt 0:04:41]} Rb6 {[%emt 0:02:33]} 23. Qxa7 {[%emt 0:03:03]} Qd6 {[%emt 0:02:30]} 24. Bb5 {[%emt 0:01:09]} Nxf5 {[%emt 0:00:28]} 25. Qa4 {[%emt 0:00:50]} Nh4 {[%emt 0:00:25]} 26. Qd1 {[%emt 0:02:40]} Qe6 {[%emt 0:00:41]} 27. Ng3 {[%emt 0:00:48]} Qc8 {[%emt 0:00:15]} 28. Ne4 {[%emt 0:05:44]} Nxe4 {[%emt 0:00:44]} 29. Rxe4 {[%emt 0:00:35]} Ng6 {[%emt 0:00:27]} 30. Re1 {[%emt 0:10:36]} Qb7 {[%emt 0:00:02]} 31. Qe2 {[%emt 0:10:54]} f5 {[%emt 0:00:18]} 32. Kh1 {[%emt 0:03:40]} Nh4 {[%emt 0:00:23]} 33. f3 {[%emt 0:01:08]} Rg6 {[%emt 0:00:30]} 34. Rg1 {[%emt 0:00:10]} e4 {[%emt 0:01:05]} 35. dxe4 {[%emt 0:04:11]} fxe4 {[%emt 0:00:03]} 36. Qxe4 {[%emt 0:00:36]} Qxe4 {[%emt 0:00:30]} 37. fxe4 {[%emt 0:00:04]} Rf2 {[%emt 0:00:53]} 38. Bd7 {[%emt 0:00:37]} Rgxg2 {[%emt 0:00:49]} 39. Rxg2 {[%emt 0:00:08]} Rxg2 {[%emt 0:00:19]} 40. Bg4 {[%emt 0:00:37]} g6 41. Bxh6 {[%emt 0:01:43]} Rh2+ {[%emt 0:00:45]} 42. Kg1 {[%emt 0:01:10]} Rg2+ {[%emt 0:00:01]} 43. Kh1 {[%emt 0:00:44]} Rh2+ {[%emt 0:00:13]} 44. Kg1 {[%emt 0:00:01]} Rg2+ {[%emt 0:00:05]} 45. Kf1 {[%emt 0:01:20]} Bg3 {[%emt 0:00:14]} 46. Bg5 {[%emt 0:01:42]} Rf2+ {[%emt 0:00:11]} 47. Kg1 {[%emt 0:00:07]} Rg2+ {[%emt 0:00:42]} 48. Kf1 {[%emt 0:00:18]} Rf2+ {[%emt 0:01:29]} 49. Kg1 {[%emt 0:00:05]} 1/2-1/2

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.22"]
[Round "2.3"]
[White "Cervantes Landeiro, Thalia"]
[Black "Polgar-Shutzman, Tom"]
[Result "1/2-1/2"]
[ECO "A41"]
[WhiteElo "2227"]
[BlackElo "2234"]
[Annotator "ChessBase"]
[PlyCount "84"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} d6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} e5 {[%emt 0:00:00]} 3. d5 {[%emt 0:00:00]} f5 {[%emt 0:00:00]} 4. e4 {[%emt 0:00:00]} fxe4 {[%emt 0:00:00]} 5. Nc3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 6. Nge2 {[%emt 0:00:07]} Be7 {[%emt 0:00:09]} 7. Ng3 {[%emt 0:00:35]} O-O {[%emt 0:00:19]} 8. Be2 {[%emt 0:02:45]} a5 {[%emt 0:03:31]} 9. O-O {[%emt 0:05:39]} Na6 {[%emt 0:01:15]} 10. Ncxe4 {[%emt 0:03:11]} Nxe4 {[%emt 0:01:29]} 11. Nxe4 {[%emt 0:00:10]} Bf5 {[%emt 0:00:38]} 12. Ng3 {[%emt 0:00:47]} Bg6 {[%emt 0:05:49]} 13. Bd2 {[%emt 0:04:39]} b6 {[%emt 0:03:11]} 14. a3 {[%emt 0:13:09]} Nc5 {[%emt 0:04:57]} 15. b4 {[%emt 0:05:31]} axb4 {[%emt 0:00:27]} 16. axb4 {[%emt 0:00:19]} Rxa1 {[%emt 0:05:38]} 17. Qxa1 {[%emt 0:00:16]} Nb3 {[%emt 0:00:04]} 18. Qb2 {[%emt 0:00:29]} Nxd2 {[%emt 0:00:49]} 19. Qxd2 {[%emt 0:00:08]} Bg5 {[%emt 0:03:29]} 20. Qa2 {[%emt 0:03:09]} Bf4 {[%emt 0:24:42]} 21. Qa3 {[%emt 0:10:23]} Qg5 {[%emt 0:06:24]} 22. Bd3 {[%emt 0:30:44]} Bxg3 {[%emt 0:10:30]} 23. hxg3 {[%emt 0:00:18]} e4 {[%emt 0:01:16]} 24. Be2 {[%emt 0:02:33]} Qd2 {[%emt 0:01:46]} 25. Bg4 {[%emt 0:01:05]} Qd4 {[%emt 0:04:05]} 26. Qe3 {[%emt 0:04:34]} Qxe3 {[%emt 0:04:06]} 27. fxe3 {[%emt 0:00:32]} Rxf1+ {[%emt 0:01:05]} 28. Kxf1 {[%emt 0:00:02]} Kf7 {[%emt 0:13:39]} 29. Ke2 {[%emt 0:01:05]} Kf6 {[%emt 0:00:56]} 30. Kd2 {[%emt 0:03:06]} Ke5 {[%emt 0:01:58]} 31. Kc3 {[%emt 0:01:30]} b5 {[%emt 0:00:30]} 32. Be6 {[%emt 0:01:17]} Be8 {[%emt 0:01:52]} 33. Bg8 {[%emt 0:04:06]} Bh5 {[%emt 0:00:30]} 34. Bxh7 {[%emt 0:01:50]} Be2 {[%emt 0:00:20]} 35. cxb5 {[%emt 0:01:27]} Bxb5 {[%emt 0:00:54]} 36. Bg8 {[%emt 0:00:11]} Bf1 {[%emt 0:00:37]} 37. Kb3 {[%emt 0:01:17]} Bd3 {[%emt 0:00:24]} 38. Kc3 {[%emt 0:00:22]} Bf1 {[%emt 0:00:16]} 39. Kb3 {[%emt 0:00:06]} Bd3 {[%emt 0:00:07]} 40. Kc3 {[%emt 0:00:06]} Be2 {[%emt 0:01:08]} 41. Kb3 {[%emt 0:00:34]} Ba6 {[%emt 0:00:51]} 42. Kc3 {[%emt 0:00:12]} Bd3 1/2-1/2

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.22"]
[Round "2.4"]
[White "Krykun, Yuriy"]
[Black "Stearman, Josiah"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "2382"]
[BlackElo "2341"]
[Annotator "ChessBase"]
[PlyCount "84"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. Nf3 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 2. e3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 3. c4 {[%emt 0:00:00]} c6 {[%emt 0:00:27]} 4. Nc3 {[%emt 0:00:00]} Bf5 {[%emt 0:01:49]} 5. cxd5 {[%emt 0:00:25]} Nxd5 {[%emt 0:03:41]} 6. d4 {[%emt 0:01:31]} e6 {[%emt 0:04:14]} 7. Bd3 {[%emt 0:02:27]} Qa5 {[%emt 0:12:37]} 8. Bxf5 {[%emt 0:02:09]} Nxc3 {[%emt 0:00:57]} 9. bxc3 {[%emt 0:00:05]} Qxf5 {[%emt 0:00:09]} 10. O-O {[%emt 0:01:37]} Nd7 {[%emt 0:05:24]} 11. c4 {[%emt 0:04:15]} Be7 {[%emt 0:08:26]} 12. Qb3 {[%emt 0:06:25]} b5 {[%emt 0:01:37]} 13. a4 {[%emt 0:10:09]} b4 {[%emt 0:04:04]} 14. a5 {[%emt 0:00:10]} O-O {[%emt 0:00:12]} 15. c5 {[%emt 0:00:51]} Rab8 {[%emt 0:00:57]} 16. Bd2 {[%emt 0:08:41]} Rb5 {[%emt 0:01:05]} 17. Qb1 {[%emt 0:06:27]} Qxb1 {[%emt 0:09:32]} 18. Rfxb1 {[%emt 0:00:03]} Rfb8 {[%emt 0:00:12]} 19. Rb3 {[%emt 0:06:12]} e5 {[%emt 0:12:43]} 20. Kf1 {[%emt 0:23:21]} e4 {[%emt 0:07:29]} 21. Ng1 {[%emt 0:00:55]} f5 {[%emt 0:02:43]} 22. Ne2 {[%emt 0:03:58]} Nf6 {[%emt 0:00:33]} 23. Ng3 {[%emt 0:04:09]} g6 {[%emt 0:00:20]} 24. Ra4 {[%emt 0:00:06]} Nd5 {[%emt 0:03:05]} 25. f3 {[%emt 0:00:12]} Nc3 {[%emt 0:04:09]} 26. Ra1 {[%emt 0:00:48]} exf3 {[%emt 0:01:43]} 27. gxf3 {[%emt 0:00:18]} f4 {[%emt 0:01:07]} 28. exf4 {[%emt 0:02:07]} Bf6 {[%emt 0:00:43]} 29. Be3 {[%emt 0:03:12]} Nd5 {[%emt 0:01:17]} 30. Bf2 {[%emt 0:04:33]} Rxc5 {[%emt 0:00:34]} 31. Ne4 {[%emt 0:00:42]} Rc2 {[%emt 0:00:17]} 32. Nxf6+ {[%emt 0:01:45]} Nxf6 {[%emt 0:00:07]} 33. d5 {[%emt 0:00:04]} c5 {[%emt 0:01:00]} 34. d6 {[%emt 0:00:28]} c4 {[%emt 0:00:35]} 35. Rbb1 {[%emt 0:01:03]} b3 {[%emt 0:00:12]} 36. Bxa7 {[%emt 0:00:18]} Rd8 {[%emt 0:01:32]} 37. Bb6 {[%emt 0:06:38]} Rxd6 {[%emt 0:00:09]} 38. a6 {[%emt 0:00:11]} Nd5 {[%emt 0:00:41]} 39. Bd4 {[%emt 0:01:40]} Nc7 {[%emt 0:00:28]} 40. Be5 {[%emt 0:01:27]} Rxa6 {[%emt 0:00:05]} 41. Rxa6 {[%emt 0:00:29]} Nxa6 {[%emt 0:00:06]} 42. Rd1 {[%emt 0:00:03]} b2 {[%emt 0:00:47]} 0-1

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.22"]
[Round "2.5"]
[White "Kiewra, Keaton"]
[Black "Torres Rosas, Luis Carlos"]
[Result "1-0"]
[ECO "E01"]
[WhiteElo "2372"]
[BlackElo "2360"]
[Annotator "ChessBase"]
[PlyCount "85"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:21]} e6 {[%emt 0:00:05]} 3. g3 {[%emt 0:01:00]} d5 {[%emt 0:00:10]} 4. Bg2 {[%emt 0:01:11]} Bb4+ {[%emt 0:00:24]} 5. Bd2 {[%emt 0:02:05]} Be7 {[%emt 0:00:25]} 6. Nf3 {[%emt 0:03:28]} O-O {[%emt 0:02:32]} 7. O-O {[%emt 0:00:16]} Ne4 {[%emt 0:01:38]} 8. Bf4 {[%emt 0:01:24]} Nd7 {[%emt 0:01:43]} 9. Nc3 {[%emt 0:12:16]} Nxc3 {[%emt 0:08:31]} 10. bxc3 {[%emt 0:00:07]} dxc4 {[%emt 0:00:04]} 11. Nd2 {[%emt 0:01:00]} Nb6 {[%emt 0:02:01]} 12. e4 {[%emt 0:00:30]} c5 {[%emt 0:08:50]} 13. Nf3 {[%emt 0:03:10]} cxd4 {[%emt 0:04:22]} 14. cxd4 {[%emt 0:00:21]} Bd7 {[%emt 0:02:10]} 15. a4 {[%emt 0:04:11]} a5 {[%emt 0:03:55]} 16. d5 {[%emt 0:00:07]} exd5 {[%emt 0:10:51]} 17. exd5 {[%emt 0:00:16]} Bg4 {[%emt 0:00:47]} 18. h3 {[%emt 0:07:06]} Bh5 {[%emt 0:02:28]} 19. g4 {[%emt 0:02:15]} Nxd5 {[%emt 0:01:21]} 20. Bg3 {[%emt 0:00:32]} Bg6 {[%emt 0:02:41]} 21. Ne5 {[%emt 0:00:06]} Nc3 {[%emt 0:05:37]} 22. Qf3 {[%emt 0:09:13]} Bb4 {[%emt 0:00:55]} 23. Qxb7 {[%emt 0:01:19]} Ne2+ {[%emt 0:02:47]} 24. Kh2 {[%emt 0:00:06]} Nxg3 {[%emt 0:02:15]} 25. fxg3 {[%emt 0:00:06]} Qd4 {[%emt 0:09:10]} 26. Nxg6 {[%emt 0:09:25]} hxg6 {[%emt 0:03:12]} 27. Rad1 {[%emt 0:00:07]} Bd2 28. Rf4 {[%emt 0:04:09]} Qd3 {[%emt 0:08:47]} 29. Rf3 {[%emt 0:01:47]} Qc2 {[%emt 0:02:30]} 30. Rdf1 {[%emt 0:00:43]} Rab8 {[%emt 0:02:58]} 31. Qc7 {[%emt 0:00:17]} Rbc8 {[%emt 0:01:32]} 32. Qb7 {[%emt 0:00:06]} Rb8 {[%emt 0:01:24]} 33. Qc7 {[%emt 0:00:41]} f6 {[%emt 0:00:56]} 34. R3f2 {[%emt 0:00:52]} Qd3 {[%emt 0:01:31]} 35. Qc6 {[%emt 0:01:04]} c3 {[%emt 0:04:12]} 36. Be4 {[%emt 0:01:09]} Qd4 {[%emt 0:00:33]} 37. Bxg6 {[%emt 0:01:43]} Rb6 {[%emt 0:00:12]} 38. Qf3 {[%emt 0:01:58]} Re6 {[%emt 0:01:08]} 39. Bc2 {[%emt 0:01:11]} Re5 {[%emt 0:00:09]} 40. h4 {[%emt 0:03:41]} Qe3 {[%emt 0:01:11]} 41. Qd1 {[%emt 0:03:12]} Be1 {[%emt 0:01:57]} 42. Rg2 {[%emt 0:00:04]} Qc5 {[%emt 0:02:32]} 43. Rxe1 1-0

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.22"]
[Round "3.1"]
[White "Torres Rosas, Luis Carlos"]
[Black "Proleiko, Julian"]
[Result "1/2-1/2"]
[ECO "D15"]
[WhiteElo "2360"]
[BlackElo "2170"]
[Annotator "TA"]
[PlyCount "31"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,31,5,9,-7,-7,-18,-10,-23,-9,-10,0,-13,14,-14,22,-12,-20,-15,-15,-25,0,-7]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. a4 e6 6. e3 Bb4 7. Bd2 {D15: Slav Defence: 4 Nc3 a6 and gambit lines after 4 Nc3 dxc4} (7. Bd3 c5 8. O-O dxc4 9. Bxc4 cxd4 10. exd4 O-O 11. Bg5 h6 12. Bh4 Be7 13. Qe2 Nc6 14. Rad1 Nd5 15. Bxe7 Ncxe7 {½-½ (65) Lindgren,P (2374)-Bellon Lopez,J (2337) Stockholm 2018}) 7... O-O 8. Qb3 a5 9. Be2 $146 ({Predecessor:} 9. Bd3 b6 10. O-O Ba6 11. Rfc1 Qd7 12. Bf1 dxc4 13. Bxc4 Qb7 14. Na2 Bd6 15. Bxe6 fxe6 16. Qxe6+ {½-½ (55) Segarra Choe,T (1481)-Rivera,Y (1329) Caguas 2006}) 9... b6 10. O-O Ba6 11. Rfd1 Nbd7 12. Rac1 Qe7 13. Be1 Rfc8 14. Qa2 Bd6 15. b3 Ne4 16. cxd5 {Accuracy: White = 21%, Black = 44%.} 1/2-1/2

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.22"]
[Round "3.2"]
[White "Stearman, Josiah"]
[Black "Kiewra, Keaton"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2341"]
[BlackElo "2372"]
[Annotator "TA"]
[PlyCount "110"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,110,12,12,24,21,17,-23,0,-107,-90,-106,-103,-95,-79,-75,-58,-73,-83,-71,-73,-84,-68,-64,-87,-71,-59,-101,-93,-92,-93,-193,-193,-193,-193,-259,-243,-246,-216,-220,-186,-252,-114,-115,-120,-105,-100,-87,-22,-136,-123,-151,-144,-163,-52,-55,-47,-48,-29,-141,-141,-254,-227,-201,-121,-92,-95,-162,-170,-149,-166,-188,-57,-117,0,-193,-193,-1384,-423,-29975,-29975,-29973,-29974,-29971,-29971,-29979,-29980,-29980,-29981,-29981,-29982,-29982,-29983,-29983,-29984,-29984,-29984,-29984,-29985,-29985,-29986]} 1. e4 c5 2. Nc3 e6 3. Nf3 Nc6 4. Bb5 Nge7 5. d4 cxd4 6. Nxd4 Nxd4 7. Qxd4 a6 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6} 8. Be2 Nc6 9. Qa4 $146 ({Predecessor:} 9. Qd3 Qc7 10. Qg3 Qxg3 11. hxg3 Bc5 12. Bf4 b5 13. g4 {1-0 (57) Pessoa,F (2533)-Nizky,R (2430) ICCF email 2015}) 9... Rb8 {Black has an edge.} 10. e5 (10. Qc4 $1 $11) 10... Nxe5 11. Bf4 Qc7 12. O-O-O f6 13. Bg3 Be7 14. f4 b5 15. Qb3 Nc4 {White must now prevent ...Na5.} 16. f5 {[#]} Qxg3 $1 {[%mdl 512]} 17. hxg3 Na5 $1 18. Bh5+ Kf8 19. Bg6 Nxb3+ 20. axb3 b4 21. Ne2 (21. Na4 $17 {might work better.}) 21... e5 $19 22. Bxh7 Bc5 23. Bg6 (23. Kb1 $142) 23... Be3+ 24. Kb1 Rxh1 25. Rxh1 Bh6 26. g4 (26. Rd1 $142) 26... Bb7 (26... Ke7 $19 {is more deadly.} 27. Ng1 Bb7) 27. g5 $17 fxg5 28. Rh2 g4 {Hoping for ...Ke7.} 29. f6 gxf6 (29... Bd5 $17) 30. Bf5 (30. Rxh6 $11 Kg7 31. Rh4 Kxg6 32. Rxg4+ Kf7 33. Rxb4) 30... Bg7 31. Bxg4 Kf7 32. Bxd7 Rh8 ({Black should play} 32... Rd8 $19 33. Bf5 Rd1+ 34. Nc1 Rg1) 33. Rxh8 $15 Bxh8 {[%mdl 4096] Endgame KBB-KBN} 34. g4 $1 Kg6 35. Kc1 (35. c4 $11) 35... Kg5 $17 36. Kd2 (36. c4 $17 bxc3 37. bxc3) 36... Bf3 $1 $19 37. c4 bxc3+ 38. bxc3 Bg7 39. b4 (39. Bc8 $17) 39... Bxg4 40. Bxg4 Kxg4 {KB-KN} 41. c4 Bf8 (41... Bh6+ $1 $19 42. Kc2 Bf8) 42. c5 $15 {[#]} a5 ({Better is} 42... Kf5 $1 $17 43. Kc3 Ke6) 43. bxa5 $2 (43. c6 $11 Bxb4+ 44. Nc3) 43... Bxc5 $19 {...Bb4+ is the strong threat.} 44. a6 $2 (44. Kd3) 44... f5 (44... Kf3 $142 45. Kd3 Bb6) 45. Ke1 (45. Kd3 $19 e4+ 46. Kc4) 45... Kf3 {Black mates.} 46. Nc3 e4 47. Nb5 {[#]} f4 $1 48. Kf1 e3 49. Nc3 Bb6 50. Ne2 Ke4 51. Ke1 f3 52. Nc1 Kd4 53. Kd1 Kc4 54. Ke1 Kb5 55. Nd3 Kxa6 {Accuracy: White = 40%, Black = 59%.} 0-1

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.22"]
[Round "3.3"]
[White "Polgar-Shutzman, Tom"]
[Black "Krykun, Yuriy"]
[Result "1/2-1/2"]
[ECO "A38"]
[WhiteElo "2234"]
[BlackElo "2382"]
[Annotator "TA"]
[PlyCount "143"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,143,36,49,-19,-14,-12,0,-18,0,-20,0,0,0,0,2,8,33,8,8,7,14,0,0,0,0,-6,-6,-22,0,0,0,0,0,0,0,-15,-8,-2,0,0,0,0,13,-23,-15,-29,0,-25,-25,-34,-1,-25,0,0,0,0,0,-22,0,-22,-14,-14,-14,-20,0,-16,25,-6,0,0,0,0,0,0,53,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 c5 2. c4 g6 3. g3 Bg7 4. Bg2 Nc6 5. Nc3 Nf6 6. d4 cxd4 7. Nxd4 O-O 8. O-O Qa5 9. Nxc6 {A39: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3 Nf6 6 0-0 0-0 7 d4} (9. e3 $14) (9. Nb3 Qh5 10. c5 d6 11. cxd6 Rd8 12. e4 Qxd1 13. Rxd1 Rxd6 14. Bf4 Rxd1+ 15. Rxd1 Ne8 16. Rd2 Bxc3 17. bxc3 e5 {½-½ (27) Almasi,Z (2687)-Gledura,B (2654) Ajka 2019}) 9... dxc6 $11 10. Bd2 Be6 11. b3 Qh5 12. Qc2 $146 ({Predecessor:} 12. Rc1 Bh3 13. e3 Ng4 14. f3 Ne5 15. Qe2 Rad8 16. Rcd1 Nd3 17. Ne4 {½-½ (41) Capella Gimenez,J-Quiles Agusti,J Aragon 1996}) 12... Rfd8 13. Rad1 Bh3 {Strongly threatening ...Ng4.} 14. f3 Qc5+ 15. Kh1 Bxg2+ 16. Kxg2 b5 17. Bc1 Kf8 18. Bb2 bxc4 19. Na4 Qb4 20. bxc4 Ne8 21. Bxg7+ Kxg7 (21... Nxg7 {is interesting.} 22. Rxd8+ Rxd8 23. Rb1 Qa5 24. Rb7 Nf5) 22. Qb2+ Qxb2 23. Nxb2 Nd6 24. c5 Rab8 25. Nd3 Nc4 {[#] Hoping for ...Ne3+.} 26. Kf2 Rd5 27. Rb1 Rbd8 28. Rb7 Ne5 29. Rxa7 Nxd3+ 30. exd3 {[%mdl 4096] Endgame KRR-KRR} e6 31. Rd1 Rxc5 32. Rd2 Rb8 33. a4 Rb1 34. Ra2 Rh1 35. Kg2 Rhc1 36. Rc7 R5c3 37. a5 R1c2+ 38. Rxc2 Rxc2+ {KR-KR} 39. Kh3 Rc3 40. d4 Rc4 41. g4 Rxd4 42. Rxc6 Rd5 43. Ra6 Rd3 44. Kg2 Ra3 (44... h6 $11) 45. Ra8 (45. g5 $14) 45... h6 {The position is equal.} 46. h4 g5 47. h5 Ra4 48. Kg3 Ra2 49. Ra7 Kf6 50. a6 e5 51. Ra8 Ra3 52. Kg2 e4 53. fxe4 Ke5 54. Ra7 f6 55. Re7+ Kf4 56. Re6 Ra2+ 57. Kh3 Ra3+ 58. Kg2 Kxg4 59. Rxf6 Ra2+ 60. Kf1 Kxh5 61. e5 g4 62. Rd6 {e6 is the strong threat.} Kg5 63. e6 {Intending e7 and mate.} Kf6 {[#]} 64. e7+ $1 {[%mdl 512]} Kxe7 65. Rxh6 {Black must now prevent a7!} Kd7 66. a7 {And now Rh8 would win.} Kc7 67. Rh8 (67. a8=Q {keeps more tension.} Rxa8 68. Kg2 Ra3 69. Rg6 Ra2+ 70. Kg3) 67... Rxa7 68. Rh7+ Kb6 69. Rxa7 Kxa7 70. Kg2 Kb6 71. Kg3 Kc5 72. Kxg4 {Accuracy: White = 57%, Black = 73%.} 1/2-1/2

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.22"]
[Round "3.4"]
[White "Gauri, Shankar"]
[Black "Cervantes Landeiro, Thalia"]
[Result "0-1"]
[ECO "A09"]
[WhiteElo "2340"]
[BlackElo "2227"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,72,-6,0,-7,-9,-6,-11,-33,-2,-24,0,-91,-95,-101,-43,-102,-22,-53,-22,-33,-37,-101,-95,-150,-87,-241,-221,-345,-333,-289,-290,-337,-340,-322,-345,-350,-325,-452,-452,-457,-454,-409,-215,-1318,-1260,-1589,-2272,-2068,-2028,-1949,-1928,-1669,-1725,-1429,-1349]} 1. Nf3 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. O-O c5 6. Nc3 a6 7. d4 b5 8. Bd3 Bb7 9. Qe2 Nbd7 10. Rd1 Qb8 11. h3 {D48: Semi-Slav: Meran System: 7...b5 8 Bd3 a6} Be7 12. Bd2 O-O 13. Rac1 {The position is equal.} Rd8 14. Bb1 {[#]} e5 $146 ({Predecessor:} 14... Qa7 15. Be1 Rac8 16. a3 cxd4 17. Nxd4 Ne5 18. a4 b4 {½-½ (62) Pogorelov,R (2486)-San Segundo Carrillo,P (2534) San Sebastian 2010}) 15. Be1 (15. dxc5 $11 e4 16. Nxe4 Bxe4 17. Bxe4 Nxe4 18. Ba5 Ndxc5 19. Bxd8 Bxd8 20. Qc2) 15... exd4 $1 $17 16. exd4 Re8 (16... Bd6 $17 17. Bd2 Re8) 17. Bd2 (17. Ne5 $1 $15) 17... cxd4 (17... Bd6 $17 18. Be3 c4) 18. Nxd4 $11 Bc5 (18... Bf8 $5 {[%cal Re8e2]} 19. Qd3 g6 $11) 19. Be3 g6 20. Qd2 (20. Nc2 $15) 20... Ne5 $1 $36 {[%mdl 2048] Black is on the roll.} 21. Bf4 {[#]} (21. Bh6 $142) 21... Nh5 (21... Qa7 $142 $1 {White must now prevent ...Nc4.} 22. Bxe5 Rxe5) 22. Bh2 $2 {[#]} (22. Be4 $17) 22... Qa7 $1 $19 {...Nc4 is the strong threat.} 23. Nb3 (23. Nf5 $142 gxf5 24. Qc2) 23... Nc4 24. Qc2 Bb6 25. Nd5 Bxd5 26. Rxd5 Nf6 27. Rd3 Ne4 {[%cal Re4f2]} 28. Bg3 Rac8 29. Rf3 Nxg3 30. Rxg3 Nd6 (30... a5 $142 31. Rf1 a4) 31. Qd2 $2 (31. Rc3) 31... Rxc1+ {Black is clearly winning.} 32. Nxc1 {[#]} Bxf2+ $1 {[%mdl 576] Double Attack} 33. Kh2 (33. Qxf2 Re1+) 33... Bxg3+ 34. Kxg3 Nc4 35. Qf4 Re3+ {Played: Qa7-g1} 0-1

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.22"]
[Round "3.5"]
[White "Arias Santana, Mauricio"]
[Black "Grabinsky, Aaron"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2292"]
[BlackElo "2338"]
[Annotator "TA"]
[PlyCount "173"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,173,-15,0,0,3,0,0,0,6,-2,-5,-1,0,-10,4,0,0,-14,0,-14,5,-2,18,-21,-15,-65,-58,-70,-69,-115,-62,-73,-72,-116,-104,-125,-107,-125,-104,-129,-130,-132,-128,-128,-125,-128,-125,-139,-139,-139,-139,-135,-121,-125,-128,-128,-121,-121,-121,-121,-121,-121,-118,-118,-118,-139,-141,-151,-147,-192,-159,-185,-159,-145,-118,-118,-118,-118,-118,-118,-118,-118,-118,-118,-103,-103,-103,-103,-80,-80,-80,-80,-80,-80,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nc3 d5 3. Bf4 g6 (3... c6 4. e3 Nbd7 5. Bd3 g6 6. h3 Bg7 7. Nf3 O-O 8. O-O b6 9. e4 dxe4 10. Nxe4 Bb7 11. Re1 Nxe4 12. Bxe4 Nf6 13. Bd3 c5 14. dxc5 bxc5 15. Ne5 Qb6 {1-0 (48) Firouzja,A (2682)-Vidit,S (2707) Xingtai 2019}) 4. Nb5 Na6 5. e3 c6 6. Nc3 {D00: 1 d4 d5: Unusual lines} Nc7 7. h3 Bg7 8. Nf3 O-O 9. Be2 Nce8 10. O-O Nd6 11. Re1 Re8 $146 ({Predecessor:} 11... a5 12. Ne5 Nd7 13. Bf1 {1-0 (35) Gareyev,T (2584)-Romanishin,O (2474) Figueira da Foz 2015}) 12. Bf1 Bf5 13. Ne5 Nd7 14. Bd3 Bxd3 15. cxd3 Nf8 16. b4 a5 {White should prevent ...f6.} 17. b5 Nxb5 18. Nxb5 cxb5 19. Qb3 f6 (19... Bxe5 $17 20. Bxe5 Qd7) 20. Nf3 $15 Qd7 $36 {[%mdl 2048] Keeping White busy.} 21. Reb1 b4 22. a3 Rec8 23. axb4 a4 24. Qd1 b5 25. Rc1 Ne6 26. Bg3 Rxc1 27. Rxc1 Rc8 28. Nd2 Nd8 29. Nb1 Rxc1 30. Qxc1 Qc6 31. Qb2 Bf8 32. Kf1 e6 33. Na3 Qb7 34. f4 Nc6 35. Be1 Bd6 36. Bc3 Kf7 37. Kf2 Ke8 38. g4 Kd8 39. h4 Kc7 40. g5 Kb6 41. Ke2 fxg5 42. hxg5 h5 43. gxh6 Qh7 44. Qd2 Qxh6 45. Kd1 Ka6 46. Kc1 {[#]} Na5 $1 {[%mdl 512]} 47. Kb2 (47. bxa5 Bxa3+) 47... Nb3 48. Qc2 {Hoping for Be1.} Qf8 49. Be1 Kb6 50. Qc3 Qh8 51. Nc2 Qh5 ({Black should try} 51... Qd8 $17) 52. Qc8 $1 $11 {[%cal Rc8d7] Black must now prevent Qd7.The position is equal.} Qd1 53. Bh4 {White wants to mate with Bd8+.} Qc1+ 54. Ka2 {Threatening mate with Bd8+.} Bc7 55. Qxe6+ {[%mdl 64] Double Attack} Ka7 {[#]} 56. Qc6 $1 {[%mdl 64] Double Attack} Bb6 57. Be7 {aiming for Qd7+.} Nc5 {[%mdl 64] Decoy} 58. Bxc5 Qxc2+ {[%mdl 64] Double Attack} 59. Ka1 Qc3+ 60. Ka2 Qb3+ 61. Ka1 Qa3+ 62. Kb1 Qxd3+ 63. Ka2 Qc4+ 64. Ka1 Bxc5 65. Qxc5+ {[%mdl 4096] Endgame KQ-KQ} Kb7 66. Qe7+ Qc7 67. Qc5 Qd7 68. Kb2 Qc6 69. Qe7+ Kc8 70. Qc5 Kd7 71. Ka3 Qb7 72. Qc2 Qa6 (72... Qc6 $5 73. Qc5 $8 Kc7 $11) 73. f5 gxf5 74. Qxf5+ {[%mdl 64] Double Attack} Qe6 75. Qd3 Kc6 76. Kb2 Kb6 77. Qc3 Qc6 {Threatens to win with ...Qxc3+.} 78. Qc5+ Kb7 79. Qe7+ Ka6 80. Qc5 Qe6 81. Ka2 Qd7 82. Kb2 Kb7 83. Ka2 Qc6 84. Kb2 Kc7 85. Qe7+ Kc8 86. Qf8+ Kd7 87. Qf7+ {Accuracy: White = 66%, Black = 67%.} 1/2-1/2

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.23"]
[Round "4.1"]
[White "Proleiko, Julian"]
[Black "Grabinsky, Aaron"]
[Result "0-1"]
[ECO "E15"]
[WhiteElo "2170"]
[BlackElo "2338"]
[Annotator "ChessBase"]
[PlyCount "87"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:05]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:24]} e6 {[%emt 0:00:00]} 3. Nf3 {[%emt 0:00:21]} b6 {[%emt 0:00:00]} 4. g3 {[%emt 0:00:07]} Ba6 {[%emt 0:00:00]} 5. Qc2 {[%emt 0:00:07]} Bb7 {[%emt 0:00:05]} 6. Bg2 {[%emt 0:00:19]} c5 {[%emt 0:00:06]} 7. d5 {[%emt 0:00:05]} exd5 {[%emt 0:00:06]} 8. cxd5 {[%emt 0:00:05]} Nxd5 {[%emt 0:00:19]} 9. O-O {[%emt 0:00:05]} Be7 {[%emt 0:00:18]} 10. Rd1 {[%emt 0:00:06]} Nc6 {[%emt 0:00:33]} 11. Qa4 {[%emt 0:00:06]} Nf6 {[%emt 0:00:28]} 12. Nh4 {[%emt 0:00:06]} O-O {[%emt 0:07:09]} 13. Nf5 {[%emt 0:00:52]} a6 {[%emt 0:05:04]} 14. Bg5 {[%emt 0:10:53]} h6 {[%emt 0:09:18]} 15. Bh4 {[%emt 0:00:27]} Kh7 {[%emt 0:04:58]} 16. Nc3 {[%emt 0:26:17]} g5 {[%emt 0:08:43]} 17. Nd5 {[%emt 0:01:09]} Nxd5 {[%emt 0:04:28]} 18. Bxd5 {[%emt 0:00:14]} Bf6 {[%emt 0:05:40]} 19. Qe4 {[%emt 0:05:56]} Qe8 {[%emt 0:04:03]} 20. Qg4 {[%emt 0:04:07]} gxh4 {[%emt 0:07:52]} 21. Nd6 {[%emt 0:04:19]} Qe5 {[%emt 0:02:49]} 22. f4 {[%emt 0:03:47]} Qe3+ {[%emt 0:03:02]} 23. Kh1 {[%emt 0:00:05]} Rae8 {[%emt 0:06:22]} 24. Qf5+ {[%emt 0:04:30]} Kg7 {[%emt 0:00:06]} 25. Qxd7 {[%emt 0:00:17]} Nd4 {[%emt 0:04:10]} 26. Rxd4 {[%emt 0:00:37]} Bxd5+ {[%emt 0:00:13]} 27. Rxd5 {[%emt 0:00:08]} Qxe2 {[%emt 0:00:20]} 28. Nxe8+ {[%emt 0:02:01]} Rxe8 {[%emt 0:00:02]} 29. Qh3 {[%emt 0:08:09]} Bxb2 {[%emt 0:00:07]} 30. Rad1 {[%emt 0:00:52]} Bd4 {[%emt 0:02:11]} 31. Qf1 {[%emt 0:01:17]} Qxa2 {[%emt 0:01:01]} 32. Qf3 {[%emt 0:01:04]} Qe2 {[%emt 0:01:45]} 33. Qxe2 {[%emt 0:02:34]} Rxe2 {[%emt 0:00:05]} 34. Rd6 {[%emt 0:00:18]} Re6 {[%emt 0:00:23]} 35. Rd7 {[%emt 0:00:03]} h3 {[%emt 0:01:02]} 36. f5 {[%emt 0:00:33]} Re2 {[%emt 0:00:38]} 37. Rf1 {[%emt 0:00:35]} a5 {[%emt 0:02:04]} 38. f6+ {[%emt 0:02:11]} Bxf6 {[%emt 0:00:38]} 39. Rd6 {[%emt 0:00:03]} Re6 {[%emt 0:00:07]} 40. Rxe6 {[%emt 0:00:02]} fxe6 {[%emt 0:00:14]} 41. Rb1 {[%emt 0:00:01]} a4 {[%emt 0:00:26]} 42. Rxb6 {[%emt 0:00:02]} a3 {[%emt 0:00:18]} 43. Ra6 {[%emt 0:00:02]} Bb2 {[%emt 0:00:08]} 44. Kg1 {[%emt 0:00:01]} 0-1

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.23"]
[Round "4.2"]
[White "Cervantes Landeiro, Thalia"]
[Black "Arias Santana, Mauricio"]
[Result "1-0"]
[ECO "A59"]
[WhiteElo "2227"]
[BlackElo "2292"]
[Annotator "TA"]
[PlyCount "141"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,149,70,62,99,104,109,97,115,110,108,107,130,95,140,142,149,0,138,137,135,140,136,87,237,189,324,324,297,312,364,356,331,326,398,396,400,397,377,335,285,334,252,251,934,909,1586,1534,1534,528,1265,1231,1702,1670,29942,2337,4806,12847,29942,29953,29954,29956,29957,29958,29958,29959,29961,29952,29957,29956,5691,4810,29964,29960,29961,29962,29959,29961,29962,29961,29954,5677,29963,29965,29966,29963,29963,29964,29963,29963,29964,29964,29965,29967,29969,29962,29965,29960,29966,29967,29966,0,29969,29971,29968,29971,29971,29973,29972,29973,29975,29976,29976,29977,29977,29978,29978,29979,29979,29978,29978,0,29979,29980,29980,29981,29979,29980]} 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bg7 7. Nf3 Bxa6 8. e4 Bxf1 9. Kxf1 d6 10. g3 O-O 11. Kg2 Nbd7 12. a4 Qb6 13. Qc2 Rfb8 {A59: Benko/Volga Gambit: White castles by hand} 14. Nb5 Ne8 15. Nd2 (15. Bd2 Nc7 16. Nxc7 Qxc7 17. Rab1 Qa7 18. a5 Rb5 19. b4 Rab8 20. bxc5 Nxc5 21. Rxb5 Rxb5 {1-0 (41) L'Ami,E (2644)-Hertneck,G (2492) Germany 2019}) 15... Qa6 {[#] And now ...Rxb5 would win.White is better.} 16. Ra3 $1 Rb7 $146 ({Predecessor:} 16... Nb6 17. b3 Rc8 18. Nc4 Nc7 19. Nxc7 Rxc7 20. Bd2 Nd7 21. a5 {½-½ (30) Palczert,B (1898)-Pilch,R (2129) Jastrzebie Zdroj 2018}) 17. Nc4 Nc7 18. Bg5 Kf8 19. Bf4 {[%cal Rc4d6]} Kg8 20. Bg5 (20. Nxc7 $16 Rxc7 21. a5) 20... Re8 (20... Kf8 $1 $11 {remains equal.}) 21. Nxc7 $16 Rxc7 22. a5 $36 {[%mdl 2048] White is really pushing.} Rb7 23. Qa4 e6 (23... Reb8 $16 {was necessary.}) 24. Nb6 exd5 (24... Qa7 {was worth a try.} 25. Rd1 Bd4 26. dxe6 Rxe6) 25. Nxd7 $18 {Nf6+ is the strong threat.} ({Not} 25. Nxd5 Bxb2 26. Rb3 Rxb3 $14) 25... Rxe4 26. Re3 Rxe3 ({Worse is} 26... Rxa4 27. Re8+ Bf8 28. Bh6 Qa8 29. Rxa8 Rb8 30. Rxb8 Rxa5 31. Rxf8#) 27. Bxe3 {Hoping for Nxc5!} d4 28. Bg5 {Black must now prevent Re1.} Rb4 29. Qa3 Qb7+ 30. Qf3 h6 31. Nf6+ Kh8 32. Re1 {Re8+ would kill now.} Qxf3+ 33. Kxf3 Rb3+ $2 (33... hxg5 34. Re8+ Bf8) 34. Kg2 {White threatens Re8+ and mate.} hxg5 {[%mdl 4096] Endgame KRB-KRN} 35. Re8+ Bf8 36. Rxf8+ {KRN-KR} Kg7 37. a6 Rxb2 {[#]} 38. a7 $1 {[%mdl 512]} Ra2 39. a8=Q Rxa8 40. Rxa8 Kxf6 {KR-KP} 41. Re8 g4 42. Kf1 Kf5 43. Ke2 c4 44. Kd2 d5 45. Re7 Kf6 46. Re1 Kf5 47. Re2 g5 48. Re8 Kf6 49. Ke2 Kf5 50. Re7 Kf6 51. Ra7 Ke6 52. Rb7 f6 53. Rb6+ Ke5 54. Rb8 Ke6 55. Re8+ Kd7 56. Ra8 Kd6 57. Kd2 Ke6 58. Re8+ Kd7 59. Rh8 Ke6 60. Rh7 Ke5 61. Re7+ Kd6 62. Re8 Kd7 $1 {[%cal Rd7e8]} 63. Re1 Kd6 64. Rf1 Ke5 65. f3 gxf3 66. Rxf3 g4 67. Rf4 f5 68. Kc2 d3+ 69. Kc3 Ke6 70. Kd4 Kf6 71. Rf2 {Played: Rf4-f1} 1-0

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.23"]
[Round "4.3"]
[White "Krykun, Yuriy"]
[Black "Gauri, Shankar"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2382"]
[BlackElo "2340"]
[Annotator "TA"]
[PlyCount "125"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,125,29,30,30,27,-15,46,24,19,21,27,19,26,22,32,29,37,8,24,27,41,5,16,8,51,27,140,71,62,25,24,31,27,33,23,0,10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,16,12,23,33,25,0,0,0,0,0,0,0,0,0,0,0,0,0,283,304,307,293,310,8,304,281,270,278,273,267,260,257,443,422,795,792,780,552,741,650,29952,10515,29974,29976,29965,29967,29984,29985,29985,29986]} 1. Nf3 Nf6 2. c4 b6 3. g3 c5 4. Bg2 Bb7 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. d4 cxd4 9. Qxd4 d6 10. Nc3 Nbd7 11. Qd2 {A30: Symmetrical English: Double Fianchetto and Hedgehog} a6 12. Rfd1 Rc8 (12... b5 $11) 13. Nd4 {White is slightly better.} Bxg2 14. Kxg2 Qc7 15. f3 Qb7 16. e4 Rfd8 17. Rac1 e6 {[#]} 18. Qe2 $146 ({Predecessor:} 18. Rc2 Ne5 19. Rdc1 Qa8 {½-½ (72) Kortschnoj,V (2635)-Adorjan,A (2570) Wijk aan Zee 1984}) 18... h5 19. Ba3 Ne5 20. f4 Nc6 21. Nf3 Qb8 22. Rc2 Na5 (22... Ne8 $11 {keeps the balance.}) 23. Rcd2 (23. f5 $142 $1) 23... Ne8 $16 24. e5 (24. Bb2 {keeps more tension.} Nc6 25. f5 Bh6 26. Rc2 Qb7 27. Bc1) 24... dxe5 25. Rxd8 Rxd8 26. Rxd8 Qxd8 27. Nxe5 Nf6 28. Bb4 Ng4 29. Nxg4 hxg4 30. Bxa5 bxa5 31. Ne4 Qa8 32. Kf1 f5 33. Nf2 Qc6 34. Qd3 Bf8 35. h3 gxh3 36. Nxh3 Qh1+ 37. Ng1 Qh2 38. Qe3 Kf7 39. Nf3 Qh1+ 40. Kf2 Be7 41. c5 Qa1 42. Nd4 {And now c6 would win.} Qxa2+ 43. Kf3 Qb1 44. Qxe6+ Kf8 45. Qc4 {Black must now prevent c6.} Qh1+ 46. Ke2 {c6 is the strong threat.} Qg2+ 47. Kd1 {Hoping for c6.} Qxg3 $2 {[%mdl 8192] [#]} (47... Qg1+ $11 {and Black stays safe.} 48. Kc2 Qg2+ 49. Kc1 (49. Ne2 Qc6 $11) 49... Qxg3) 48. c6 $1 $18 {[%cal Rc6c7]} Qg1+ 49. Kc2 Qf2+ {[#]} 50. Kb1 $1 {Threatens to win with c7.} ({Worse is} 50. Ne2 Bd6 $11) 50... Qe1+ $2 {[%mdl 8192]} (50... Qg1+ $1 $11 {and Black is okay.} 51. Ka2 Bd6) 51. Ka2 Bd6 {next ...Qd2+ is good for Black.} 52. c7 Qd2+ 53. Nc2 Bxc7 54. Qxc7 a4 $2 (54... Qc1 {was called for.} 55. Qd6+ Kg7) 55. bxa4 g5 (55... Kg8 $142 56. a5 Qd1) 56. fxg5 Qxg5 57. Qc8+ Kf7 58. Qb7+ Kg6 59. Qxa6+ Kh5 60. Qe2+ {White mates.} Kh6 61. Nd4 Qf4 62. Qe6+ {[%mdl 64] Double Attack} Kg5 {[#]} 63. Qxf5+ $1 {Accuracy: White = 63%, Black = 32%.} 1-0

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.23"]
[Round "4.4"]
[White "Kiewra, Keaton"]
[Black "Polgar-Shutzman, Tom"]
[Result "1-0"]
[WhiteElo "2372"]
[BlackElo "2234"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,101,0,16,0,47,-8,-4,-7,37,45,45,41,37,48,38,44,55,43,37,36,42,0,44,28,24,9,1,0,29,4,60,68,66,55,112,94,86,64,99,104,107,92,128,129,175,172,184,152,179,153,211,0,178,0,204,204,190,190,269,260,266,258,395,393,384,382,384,403,417,404,410,393,392,394,460,468,448,460,449,443,439,424,538,531,557,556,551,553,583,576,584,540,1119,1118]} 1. d4 Nf6 2. Bg5 d5 3. Nd2 c5 4. Bxf6 (4. e3 Nc6 5. c3 e6 6. Ngf3 Be7 7. Bd3 b6 8. O-O Bb7 9. a4 O-O 10. Ne5 Nxe5 11. dxe5 Ne4 12. Bxe7 Qxe7 13. Bxe4 dxe4 14. Qg4 Qc7 15. Nc4 {½-½ (33) Artemiev,V (2746)-Le,Q (2708) Khanty-Mansiysk 2019}) 4... gxf6 5. dxc5 Nc6 6. e4 {D00: 1 d4 d5: Unusual lines} e5 $146 ({Predecessor:} 6... dxe4 7. Nxe4 Bf5 8. Qxd8+ Rxd8 9. Bd3 Rd5 10. Ne2 Bxe4 11. Bxe4 Rxc5 {½-½ (42) Winterberg,L (2255)-Vanheirzeele,D (2110) Belgium 2013}) 7. Ngf3 (7. Qh5 $14) 7... Be6 $11 8. exd5 {The position is equal.} Bxd5 9. Bc4 Bxc4 10. Nxc4 Bxc5 11. Qe2 Qd7 12. Rd1 Qe6 13. O-O O-O 14. Qe4 Rad8 15. Nh4 Kh8 16. c3 Ne7 17. b3 b5 $132 {[%mdl 2048] Black is not keeping still} 18. Ne3 Rg8 19. g3 a5 (19... Bxe3 $11 20. fxe3 a5) 20. Nef5 $14 Nxf5 21. Nxf5 Rge8 ({Black should try} 21... Rc8 $14) 22. Kg2 Bf8 23. g4 Rd7 24. Rxd7 Qxd7 25. Ne3 Qc7 26. Rd1 Kg8 {[#]} 27. Nd5 $1 {[%mdl 512]} Qd6 28. Rd3 h6 29. Ne3 Qe6 (29... Qc7 $16 {is a better defense.} 30. Nd5 Qd8) 30. Nd5 {aiming for Nc7.} Qd6 $1 31. Ne3 Qe6 $1 {[#]} 32. Qb7 $1 b4 {[#] intending ...e4.} 33. c4 $1 Rc8 (33... a4 $142 34. Qe4 (34. bxa4 Bc5 $16) 34... Qa6) 34. Rd7 $18 Re8 35. Qd5 a4 (35... Rc8 {keeps fighting.} 36. h3 Bc5) 36. bxa4 Qxd5+ 37. Rxd5 {[%mdl 4096] Endgame KRB-KRN} ({Weaker is} 37. Nxd5 Ra8 $16) 37... Ra8 38. a5 Be7 39. Rb5 Kf8 40. Nd5 Bd8 41. Rxb4 Rxa5 42. Rb8 {White is clearly winning.} Ke8 43. Nxf6+ Ke7 44. Ng8+ Kd7 45. Nxh6 f6 46. Rb2 Ke6 47. Nf5 Rc5 48. Ne3 Ra5 49. Kf3 Be7 50. Ke4 Bc5 51. Rb5 {Accuracy: White = 68%, Black = 35%.} 1-0

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.23"]
[Round "4.5"]
[White "Torres Rosas, Luis Carlos"]
[Black "Stearman, Josiah"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "2360"]
[BlackElo "2341"]
[Annotator "ChessBase"]
[PlyCount "57"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:02:51]} d5 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:07]} c6 {[%emt 0:00:00]} 3. Nf3 {[%emt 0:00:05]} Nf6 {[%emt 0:00:00]} 4. Nc3 {[%emt 0:00:09]} dxc4 {[%emt 0:00:00]} 5. e4 {[%emt 0:00:05]} b5 {[%emt 0:00:34]} 6. Be2 {[%emt 0:00:45]} b4 {[%emt 0:02:20]} 7. Na4 {[%emt 0:00:08]} Nxe4 {[%emt 0:13:26]} 8. Bxc4 {[%emt 0:00:15]} e6 {[%emt 0:03:05]} 9. O-O {[%emt 0:00:06]} Bd6 {[%emt 0:01:01]} 10. Qe2 {[%emt 0:00:12]} Nf6 {[%emt 0:00:50]} 11. Bg5 {[%emt 0:00:51]} O-O {[%emt 0:01:43]} 12. Nc5 {[%emt 0:00:49]} h6 {[%emt 0:02:52]} 13. Bh4 {[%emt 0:00:15]} g5 {[%emt 0:02:40]} 14. Bg3 {[%emt 0:10:05]} Bxg3 {[%emt 0:00:30]} 15. fxg3 {[%emt 0:00:22]} g4 {[%emt 0:03:36]} 16. Ne5 {[%emt 0:05:06]} Qxd4+ {[%emt 0:00:10]} 17. Kh1 {[%emt 0:00:07]} Kg7 {[%emt 0:00:32]} 18. Ncd3 {[%emt 0:13:38]} Qe4 {[%emt 0:29:59]} 19. Qf2 {[%emt 0:03:21]} Qf5 {[%emt 0:03:15]} 20. Qd4 {[%emt 0:05:49]} Qe4 {[%emt 0:01:38]} 21. Qd6 {[%emt 0:03:09]} Nbd7 {[%emt 0:07:47]} 22. Rf4 {[%emt 0:08:15]} Qe3 {[%emt 0:04:45]} 23. Raf1 {[%emt 0:02:30]} c5 {[%emt 0:12:01]} 24. Qe7 {[%emt 0:04:52]} h5 {[%emt 0:06:37]} 25. Nxd7 {[%emt 0:00:45]} Nxd7 {[%emt 0:01:49]} 26. Rxf7+ {[%emt 0:00:06]} Rxf7 {[%emt 0:00:16]} 27. Rxf7+ {[%emt 0:00:33]} Kh6 {[%emt 0:00:10]} 28. Rh7+ {[%emt 0:00:09]} Kg6 {[%emt 0:00:03]} 29. Qf7+ {[%emt 0:00:06]} 1-0

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.23"]
[Round "5.1"]
[White "Stearman, Josiah"]
[Black "Proleiko, Julian"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2341"]
[BlackElo "2170"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,129,9,8,8,13,11,27,19,14,0,0,0,0,0,37,0,0,0,0,-35,-14,-14,0,-14,0,-13,0,-49,22,0,34,10,68,43,47,44,80,82,87,81,82,81,93,93,93,87,90,89,87,86,94,94,131,94,94,94,94,46,47,47,55,0,0,0,49,46,46,0,29,-7,-7,-7,-7,-7,-7,-29,-29,-29,-3,-54,0,0,0,0,0,0,0,0,0,0,0,0,29959,12798,5600,5081,29967,29969,29969,29971,29971,29972,29971,29972,29978,29979,29979,29980,29980,29980,29980,29979,29980,29981,29981,29982,29982,29980,29980,29981,29981,29982]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 h5 5. Bd3 $146 (5. c4 e6 6. Nc3 Bb4 7. cxd5 cxd5 8. Bg5 Ne7 9. Bd3 Bxc3+ 10. bxc3 Qc7 11. Ne2 Nd7 12. Bxf5 Nxf5 13. O-O f6 14. exf6 gxf6 {½-½ (40) Sjugirov,S (2661)-Riazantsev,A (2653) Sochi 2019}) 5... Bxd3 6. Qxd3 {Black should prevent e6. B12: Caro-Kann: Advance Variation} Qa5+ 7. c3 {aiming for e6!} e6 8. Bg5 {White has an edge.} c5 9. Nd2 Nc6 10. Ne2 cxd4 11. cxd4 Nh6 12. O-O (12. Bxh6 $5 Rxh6 13. O-O $14) 12... Nf5 13. Nb3 Qb6 14. Nc3 Nb4 (14... Ncxd4 $2 15. Nxd4 Nxd4 16. Be3 $18) (14... Nfxd4 15. Be3 $16) 15. Qe2 (15. Qd2 {with more complications.} Rc8 16. Rac1 Rc4 17. Rfd1 a6 18. Na4) 15... Nc6 16. Rfd1 a6 ({Wrong is} 16... Ncxd4 $2 17. Nxd4 Nxd4 18. Rxd4 $1 $18 {[%mdl 512]}) 17. Rac1 Be7 ({Don't go for} 17... Nfxd4 $2 18. Nxd4 Nxd4 19. Qe3 $18) 18. Qd2 Bb4 ({Black should play} 18... Nxh4 $15 19. Bxe7 Nxe7) 19. Qd3 Bxc3 20. bxc3 Na5 ({Black should try} 20... Qb5 $11) 21. Rb1 $14 Nxb3 22. Rxb3 Qc6 23. Rdb1 b5 24. a4 O-O 25. axb5 axb5 26. Rxb5 Ra3 27. Rb8 {White wants to mate with Rxf8+.} Rc8 28. Bd2 Qc7 29. R8b7 Qd8 30. g3 Qe8 31. Kg2 Ra2 32. R1b3 Qa4 33. Rb8 Rxb8 34. Rxb8+ Kh7 35. Qe2 (35. Bf4 $14) 35... Nh6 $11 {Threatens to win with ...Qc2.} 36. Qd3+ Nf5 {Hoping for ...Qd1.} 37. Bg5 Qc2 38. Qf3 Kg6 39. Rh8 {[%csl Gh8][%cal Rf3h5]} Qe4 $1 40. Bf4 $132 {[%mdl 2048] White is not keeping still} Qxf3+ 41. Kxf3 {[%mdl 4096] Endgame KRB-KRN} Rc2 42. g4 {[%csl Gh8][%cal Rg4h5]} Rxc3+ 43. Be3 $1 {[%csl Gh8][%cal Rg4h5]} Nxd4+ (43... Nxh4+ $2 44. Kg3 $18) 44. Kf4 {Played: Kf3-g2} 1-0

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.23"]
[Round "5.2"]
[White "Polgar-Shutzman, Tom"]
[Black "Torres Rosas, Luis Carlos"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2234"]
[BlackElo "2360"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,104,15,27,20,26,10,2,20,8,0,0,0,0,0,3,0,0,0,0,0,0,-64,-55,-44,-58,-44,-36,-106,-76,-91,-97,-162,-3,-13,0,-14,0,-44,0,0,0,-148,-156,-150,-150,-175,-157,-210,-206,-201,-189,-189,-191,-206,-128,-122,-114,-223,-175,-175,-179,-284,-270,-296,-138,-179,-179,-217,-206,-220,-219,-355,-370,-409,-403,-464,-454,-584,-597,-865,-864,-934,-914,-1122,-1122,-1318,-1146,-1584,-1556,-2471,-2560,-29965,-29966,-29967,-29951,-29996,-5945]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. O-O a6 5. Bd3 Ngf6 6. c3 $146 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7} ({Predecessor:} 6. Re1 e6 7. c3 b5 8. a4 Bb7 9. Bc2 {1-0 (25) Vachier Lagrave,M (2796)-Giri,A (2771) Stavanger 2017}) 6... b5 7. Re1 c4 8. Bc2 {The position is equal.} Bb7 9. a4 e6 10. d4 cxd3 11. Qxd3 Nc5 12. Qe2 bxa4 13. e5 dxe5 14. Nxe5 Be7 15. Rxa4 ({Only move:} 15. Be3 $1 $11) 15... Qd5 {[%csl Gb7][%cal Rd5g2]} 16. f3 {Threatens to win with Rd1.} Nxa4 17. Bxa4+ Kf8 18. c4 (18. b4 $15 Qd8 19. Kh1) 18... Qd6 19. Kh1 Kg8 20. b4 (20. Nc3 $17) 20... Rf8 $2 (20... Qxb4 $19 21. Ba3 Qxa4 22. Bxe7 Qe8) 21. c5 $11 Qd4 22. Bd2 $1 Nd5 23. Bd7 Bf6 {[#] Strongly threatening ...Qxe5.} 24. Nxf7 $1 {[%mdl 512]} Rxf7 25. Bxe6 {[#]} (25. Qxe6 $11 {was the only way to keep the balance.} Nc7 26. Qe8+ $1 {[%mdl 512]} Rf8 27. Be6+ Nxe6 28. Qxe6+ Rf7 29. c6 Bxc6 30. Qc8+ (30. Qxc6 h6 $15) 30... Rf8 31. Qe6+ Rf7 32. Qc8+ (32. Qxc6 h6 $15) 32... Rf8 33. Qe6+ Rf7) 25... Nc7 $1 $17 {[%cal Rc7e6]} 26. Bc3 Qd8 27. Bxf7+ Kxf7 28. Rd1 (28. Bxf6 $17 Qxf6 29. Nc3) 28... Re8 $19 29. Qc4+ Bd5 30. Qf4 Qe7 31. h3 Ne6 32. Qf5 Bb3 33. Qh5+ (33. Bxf6 $17 {is a better defense.} Qxf6 34. Rd7+ Re7 35. Qd3) 33... Kf8 34. Re1 Nf4 {( -> ...Qxe1+)} 35. Rxe7 (35. Qxh7 $142 Qxe1+ 36. Bxe1 Rxe1+ 37. Kh2) 35... Nxh5 36. Ra7 Bc4 (36... Bg5 $19 {and Black stays clearly on top. Hoping for ...Rd8.} 37. g4 Nf6) 37. Bxf6 Nxf6 38. Nc3 Rb8 39. c6 Rc8 40. Na4 (40. b5 $142 axb5 41. Rb7) 40... Rxc6 41. Nc5 Rb6 42. f4 Rxb4 43. Ra8+ Ke7 44. Ra7+ Kd6 45. Nb7+ Kc7 46. Na5+ Kb6 {[%mdl 64] Double Attack} 47. Rxg7 Kxa5 48. Kh2 Bd5 49. g4 Rxf4 50. Kg3 Rf3+ {Black mates.} 51. Kh4 Be4 52. g5 Rf4+ {Accuracy: White = 36%, Black = 71%.} 0-1

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.23"]
[Round "5.3"]
[White "Gauri, Shankar"]
[Black "Kiewra, Keaton"]
[Result "1-0"]
[ECO "A09"]
[WhiteElo "2340"]
[BlackElo "2372"]
[Annotator "TA"]
[PlyCount "147"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,147,-17,5,2,29,0,0,0,-1,-2,15,-2,20,25,89,91,96,81,91,94,100,92,92,86,90,93,97,84,87,91,80,79,85,92,143,138,142,94,106,50,82,84,172,171,159,158,221,129,162,129,183,179,204,183,250,212,254,256,308,304,541,559,522,485,497,473,343,268,482,392,549,549,538,521,414,511,520,279,226,0,526,527,478,413,29963,385,356,0,29965,29964,29971,29972,29972,29973,29972,29968,5177,827,775,758,702,681,615,609,485,315,1120,1124,29974,12812,6226,6095,5306,1614,29984,29985,29985,29986,29986,29987,29986,29985,29989,29990,29990,29990,29990,29991,29993,29991,29991,29991,29991,29992,29992,29990,29993,29994,29994,29992]} 1. Nf3 d5 2. c4 d4 3. b4 f6 4. d3 e5 5. a3 a5 6. b5 {A09: Réti Opening: 1 Nf3 d5 2 c4} Bg4 (6... Ne7 7. e3 dxe3 8. fxe3 Nf5 9. g4 Nd6 10. Rg1 Be6 11. Qc2 Nd7 12. d4 {½-½ (33) Ding,L (2777)-Giri,A (2772) Wenzhou 2017}) 7. h3 $146 ({Predecessor:} 7. e3 Bc5 8. Be2 Ne7 9. Nxd4 Bxd4 10. Bxg4 Bxa1 11. Qc2 Nd7 12. O-O {1-0 (34) Johansen,D (2370)-Chan,K (2183) Melbourne 2016}) 7... Bh5 8. e3 {The position is equal.} dxe3 9. Bxe3 Nd7 10. Be2 Bc5 11. d4 Ba7 (11... exd4 $11 {keeps the balance.} 12. Nxd4 Bxe2 13. Qxe2 Bxd4 14. Bxd4+ Qe7) 12. Nc3 $36 {[%mdl 2048] White is in control.} Ne7 13. dxe5 Bxe3 14. fxe3 Bxf3 15. Bxf3 Nxe5 16. Bxb7 Rb8 17. Bd5 Nxd5 18. cxd5 O-O 19. O-O Re8 20. Qd4 Qe7 21. a4 Nf7 (21... Nd7 $142) 22. Rfe1 Rbd8 23. e4 Qd6 24. Rab1 (24. Rad1 $16) 24... Ng5 25. Re3 Ne6 {[#]} (25... Qb6 $16 26. Qxb6 cxb6) 26. Qc4 $1 $18 Ng5 27. Rbe1 Nf7 (27... h6 $16 28. Nb1 Qb4 29. Qxb4 (29. Qxc7 Qxa4 30. Nc3 Qd4 $16) 29... axb4) 28. Nd1 (28. Ne2 $18) 28... Qb6 $16 29. Nf2 Ne5 (29... Rd7 $16 30. Rc3 f5) 30. Qb3 Kh8 31. Kh1 Nd7 (31... h6 $142 32. Nd3 Nxd3 33. Qxd3 Re7) 32. Qc3 $18 Re7 33. Nd3 Rde8 34. e5 Nxe5 $2 (34... Qb7 35. e6 (35. Qxa5 fxe5 36. Qc3 Qxd5 $18) 35... Nb6) 35. Nxe5 fxe5 36. Rxe5 Rxe5 37. Rxe5 {[%cal Re5e8][%mdl 4096] Endgame KQR-KQR} Rf8 38. Qe3 Qf6 $2 (38... Rf1+ 39. Kh2 Qd6) 39. Re8 {Qe5 is the strong threat.} h6 (39... Kg8 $142 40. Re7 Rf7) 40. Rxf8+ Qxf8 {KQ-KQ} 41. Qe5 Qc5 42. Qe8+ Kh7 43. Qe4+ Kh8 44. Qe8+ $2 (44. Qe5) 44... Kh7 45. Qc6 Qe7 {intending ...Qe1+.} 46. Qc3 Qf7 (46... h5 $18 47. Qxa5 Qe5) 47. Kg1 $2 (47. Qd3+ {mates} Kh8 48. d6 Qd7 49. Qd5 cxd6 50. b6 Qe7 51. Qxa5 Qe4 52. Qb5) 47... Qe7 48. Kh1 $2 ({Less strong is} 48. Qxa5 Qe3+ 49. Kf1 Qc1+ 50. Ke2 Qc4+ 51. Ke3 Qc5+ 52. Ke4 Qc2+ 53. Ke5 Qe2+ 54. Kf5 Qh5+ 55. Ke4 Qe2+ 56. Kd4 Qf2+ 57. Kd3 Qf5+ 58. Kc3 Qe5+ 59. Kc4 Qe4+ 60. Kc5 Qc2+ 61. Kd4 Qf2+ 62. Kd3 Qf5+ 63. Ke2 Qh5+ 64. Kf2 Qh4+ 65. Kf3 Qh5+ 66. Kf2 Qh4+ 67. Kf3 Qh5+ 68. Kf2 $16) (48. Qd3+ $18 Kg8 {[#]} 49. d6 $1 {[%mdl 512]} cxd6 50. Qd4) 48... Qf7 $1 {If only Black now had time for ...Qf1+....} 49. Qd3+ Kh8 50. d6 Qd7 {[#]} 51. dxc7 $3 {[%mdl 512]} Qxc7 52. Qd4 Qc1+ 53. Kh2 (53. Qg1 $142 Qc8 54. Qb1) 53... Qc7+ 54. Kg1 Qc1+ 55. Kf2 Qc2+ 56. Kf3 Qb3+ 57. Kf4 Kg8 $2 (57... Qf7+ 58. Kg3 Qc7+ 59. Qf4 Qb6 60. Qf8+ Kh7) 58. Ke5 {And now Qd5+ would win.} Qb1 59. b6 (59. Qd5+ $142 Kf8 60. Kd6 h5 61. Qxh5 g5 62. Qh6+ Kf7 63. Qxg5 Qb4+ 64. Qc5 Qf4+ 65. Qe5 Qb4+ 66. Kc7 Qc4+ 67. Kb8) 59... Kh8 60. Kd6 Kh7 61. g4 (61. Kc7 $142 Qc2+ 62. Kb8) 61... Qb3 62. Qe4+ {White mates.} Kh8 63. b7 Qb6+ 64. Kd7 Qa7 65. h4 g5 66. h5 Kg7 67. Qg6+ Kf8 68. Qxh6+ Kf7 69. Qg6+ Kf8 70. Qf6+ Kg8 71. Qxg5+ Kh7 72. Kc8 Qd4 73. Qg6+ Kh8 74. Qe8+ {Accuracy: White = 68%, Black = 40%.} 1-0

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.23"]
[Round "5.4"]
[White "Arias Santana, Mauricio"]
[Black "Krykun, Yuriy"]
[Result "0-1"]
[ECO "C60"]
[WhiteElo "2292"]
[BlackElo "2382"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,90,0,0,0,0,8,32,18,16,-24,-14,-17,-4,-25,-13,-38,-35,-36,-41,-27,-19,-42,-39,-32,-37,-38,-25,-28,-22,-44,-47,-66,-66,-66,-66,-66,-73,-65,-79,-72,-71,-70,-45,-96,-15,-16,-12,-12,0,0,0,0,0,-44,-2,-58,0,0,0,-92,-63,-103,-80,-98,-98,-98,-59,-71,-6,-43,0,0,0,-233,-254,-190,-226,-295,-108,-75,-58,-95,-97]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Bxc6 (5. c3 a6 6. Ba4 b5 7. Bc2 d6 8. d4 exd4 9. cxd4 Bg4 10. Be3 Bxf3 11. gxf3 Nge7 12. Nc3 O-O 13. f4 Na5 {0-1 (48) Short,N (2646)-Paravyan,D (2634) Moscow 2018}) 5... dxc6 6. b3 {C60: Ruy Lopez: Unusual Black 3rd moves and 3...g6} Ne7 7. Bb2 f6 $146 ({Predecessor:} 7... Bg4 8. d3 O-O 9. Nbd2 c5 10. h3 Bxf3 11. Nxf3 Nc6 12. Qe2 a5 13. a4 Nd4 14. Nxd4 cxd4 15. Bc1 Qd7 16. Bd2 b6 17. Kh2 c5 18. f3 {½-½ (18) Gutzen,W (1871)-Wurmbauer,N (1691) Neustadt an der Weinstrasse 2019}) 8. d4 {White is slightly better.} exd4 9. Qxd4 Qxd4 10. Bxd4 O-O 11. Nbd2 b6 12. Rfe1 c5 13. Bb2 Nc6 14. Nc4 Bg4 15. Rad1 Rad8 16. Ne3 Bxf3 17. gxf3 Nd4 18. Kg2 f5 19. c3 Ne6 20. exf5 Nf4+ 21. Kf1 Nd3 22. Re2 $1 Nxb2 23. Rxd8 Rxd8 24. Rxb2 Bxc3 $15 {[%mdl 4096] Endgame KRB-KRN} 25. Rc2 Bg7 26. Ke2 (26. Re2 $15) 26... gxf5 ({Black should play} 26... g5 $17) 27. Nxf5 $11 Kf7 28. Nxg7 {Black must now prevent Nf5.} Kxg7 {KR-KR} 29. b4 c6 30. bxc5 b5 31. Ke3 (31. a4 $5) 31... Kf6 {[%mdl 1024] Black has compensation.} 32. Ke4 (32. a4 $11) 32... Re8+ (32... a5 $15) 33. Kf4 Re5 34. h3 (34. Rd2 $11) 34... a5 $17 {[%cal Ba7a5,Ba5a4][%mdl 32]} 35. h4 Rh5 36. Kg4 Rd5 37. h5 a4 38. f4 $1 {[#]} h6 ({Better is} 38... Rd1 $1 $17) 39. Rc3 Rd2 40. a3 Rd5 41. Kh4 $2 (41. Re3 $11 {and White stays safe.}) 41... Kf5 $19 42. Kg3 Rd4 43. f3 Rc4 $2 (43... Rxf4 $19 {is more deadly. And now ...Rc4 would win.} 44. Kf2 Rc4) 44. Rd3 $17 Rxc5 {...Rd5 is the strong threat.} 45. Rd6 {[#]} Rc1 $1 {Accuracy: White = 43%, Black = 50%.} ({Much worse is} 45... Rc3 $6 46. Rxh6 Rxa3 47. Rxc6 $11) 0-1

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.23"]
[Round "5.5"]
[White "Grabinsky, Aaron"]
[Black "Cervantes Landeiro, Thalia"]
[Result "1/2-1/2"]
[ECO "B54"]
[WhiteElo "2338"]
[BlackElo "2227"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,120,50,39,37,47,47,38,49,43,29,76,52,58,34,38,27,27,26,22,0,21,10,26,0,0,0,0,-9,0,0,23,0,-7,-12,0,0,0,0,0,0,0,0,1,1,1,2,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-286,-155,-106,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Nb3 d5 7. Bg5 Be6 8. Bxf6 gxf6 9. exd5 Qxd5 10. Qxd5 Bxd5 11. Nc3 Be6 12. O-O-O {B55: Sicilian: 2...d6 3 d4 cxd4 4 Nxd4 Nf6 5 f3} (12. Nb5 Kd8 13. O-O-O+ Kc8 14. Nc3 Nd7 15. Nd5 h5 16. Bb5 Bxd5 17. Bxd7+ Kxd7 18. Rxd5+ Ke6 19. Rhd1 h4 20. Kb1 Rg8 21. c4 Rxg2 22. Nd4+ Ke7 23. f4 Rxh2 24. Nf5+ Ke6 25. Nd4+ Ke7 26. Nf5+ Ke6 {½-½ (26) Nabaty,T (2690)-Sjugirov,S (2652) Batumi 2018}) 12... a6 13. Nd5 Bxd5 $1 14. Rxd5 {White is slightly better.} Nc6 15. c3 Rc8 16. Kb1 h5 17. g3 h4 $146 ({Predecessor:} 17... Rd8 18. Rxd8+ Nxd8 19. Bd3 Bd6 {1-0 (77) Schut,D (2069)-Tsatsalashvili,K (2271) Herceg Novi 2008}) 18. g4 Bh6 19. h3 Ke7 20. Bd3 Rhd8 21. Be4 Rc7 22. Rhd1 Rxd5 23. Bxd5 Nd8 24. Na5 Be3 25. Nc4 Bg5 26. Kc2 b5 27. Nd2 Bxd2 28. Rxd2 Ne6 29. Bxe6 fxe6 $11 {[%mdl 4096] Endgame KR-KR} 30. Re2 Rc5 31. Re4 Kd6 32. Kd3 Rd5+ 33. Ke2 Ke7 34. a4 Kf7 35. c4 bxc4 $1 36. Rxc4 a5 37. b4 axb4 38. Rxb4 Kg6 39. Rb3 Kg5 40. Ke3 Ra5 41. Ra3 f5 42. Ra2 Kg6 43. gxf5+ exf5 44. f4 exf4+ 45. Kxf4 Kf6 46. Ra3 Kg6 47. Ke3 Kg5 48. Kf3 Kg6 49. Ke3 Kg5 50. Kf3 Kg6 51. Ke2 Kf6 52. Kd3 Ke5 53. Ke3 Ke6 54. Kd4 Kd6 55. Ra1 Ke6 56. Kc4 Ke5 57. Kb4 Ra8 {Threatens to win with ...f4.} 58. Re1+ $2 {[%mdl 8192]} (58. a5 $11) 58... Kf4 (58... Kd4 $19 59. Rf1 Rb8+ 60. Ka5 Ke4 61. Re1+ Kd3) 59. Rf1+ $17 {[#]} Kg3 (59... Ke4 $1 $17 {And now ...f4 would win.} 60. Re1+ Kd3) 60. Rxf5 $11 Kxh3 {Accuracy: White = 67%, Black = 81%.} 1/2-1/2

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.24"]
[Round "6.1"]
[White "Proleiko, Julian"]
[Black "Cervantes Landeiro, Thalia"]
[Result "0-1"]
[ECO "C28"]
[WhiteElo "2170"]
[BlackElo "2227"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,82,0,5,2,10,10,13,16,21,25,21,7,10,-23,-19,-18,-4,-13,34,16,29,16,26,21,52,36,46,49,71,75,144,145,170,166,157,-18,-8,-197,-171,-181,-180,-175,-170,-167,-164,-162,-164,-172,-172,-175,-169,-318,-269,-483,-501,-490,-498,-458,-351,-339,0,-458,-450,-450,-440,-666,-648,-994,-986,-980,-972,-971,-906,-971,-923]} 1. e4 e5 2. Nc3 Nc6 3. Bc4 Nf6 4. d3 Na5 5. Qf3 Nxc4 (5... Be7 {seems wilder.} 6. Nge2 d6 7. h3 O-O 8. O-O Nxc4 9. dxc4 Be6) 6. dxc4 {C28: Vienna Game: 2...Nf6 3 Bc4 Nc6} h6 (6... Bb4 7. Nge2 d6 8. h3 Be6 9. b3 Nd7 10. O-O Bxc3 11. Nxc3 O-O 12. Qg3 f5 13. Bg5 {½-½ (33) Caruana,F (2822)-Aronian,L (2767) chess.com INT 2018}) 7. Nge2 d6 8. b3 {The position is equal.} Be7 $146 ({Predecessor:} 8... Bg4 9. Qd3 Qd7 10. h3 Bh5 11. g4 Bg6 12. Bb2 O-O-O 13. O-O-O {1-0 (55) Kracke,M (2054)-Wiebusch,M (1901) Tuebingen 2007}) 9. h3 Be6 10. Bb2 a6 11. O-O-O b5 12. c5 Nd7 13. cxd6 Bxd6 14. Nd5 O-O 15. g4 Bxd5 16. Rxd5 a5 17. Nc3 ({Weaker is} 17. Rxb5 c6 $17) 17... a4 18. Nxb5 axb3 19. axb3 ({Inferior is} 19. Nxd6 Qg5+ 20. Kd1 bxc2+ 21. Kxc2 cxd6 $17) 19... Nb6 (19... Qb8 $142) 20. Rd2 $16 Ra2 21. Nxd6 cxd6 22. Kb1 $2 (22. Rhd1 $16) 22... Qa8 $11 {White must now prevent ...Nc4!} 23. Rxd6 $2 {[#]} (23. Rhd1 $1 $11 Nc4 24. bxc4) 23... Nc4 $1 $19 24. bxc4 Rb8 $40 {[%csl Ga8][%cal Ra2a1][%mdl 128] Black wants a kill.} 25. Qb3 Rxb3 26. cxb3 {[#] Black should prevent Rhd1.} Ra1+ $1 {[%mdl 512]} 27. Bxa1 Qxe4+ {[%mdl 64] Double Attack} 28. Ka2 Qa8+ 29. Kb2 Qxh1 {[%mdl 4096] Endgame KQ-KRB} 30. c5 (30. Rd3 $142) 30... Qe1 ({Stronger than} 30... Qxh3 31. Rd8+ Kh7 32. c6 $11) 31. c6 $2 (31. Rd5 {is the only way for White.}) 31... Qxf2+ 32. Kb1 Qg1+ 33. Ka2 Qa7+ 34. Kb1 Qg1+ 35. Ka2 $1 Qc5 {Black is clearly winning.} 36. Rd8+ Kh7 {Threatens to win with ...Qa5+.} 37. Rc8 (37. Rd7 $142 Qxc6 38. Rxf7) 37... e4 38. c7 Qc2+ {Played: Qc5-c6} 0-1

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.24"]
[Round "6.2"]
[White "Krykun, Yuriy"]
[Black "Grabinsky, Aaron"]
[Result "1/2-1/2"]
[ECO "A38"]
[WhiteElo "2382"]
[BlackElo "2338"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,80,14,6,24,14,14,18,37,10,39,0,0,0,0,0,0,0,0,0,13,16,20,27,50,46,40,41,107,87,86,66,100,24,37,0,-6,-8,18,18,20,20,46,53,39,12,15,0,8,5,18,0,0,0,0,0,0,0,0,0,0,0,6,6,6]} 1. Nf3 c5 2. c4 Nc6 3. Nc3 Nf6 4. g3 g6 5. Bg2 Bg7 6. d4 cxd4 7. Nxd4 Qb6 8. Nb3 O-O 9. O-O d6 10. Bg5 Be6 {A39: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3 Nf6 6 0-0 0-0 7 d4} 11. Nd5 Bxd5 12. cxd5 {[#] Hoping for Be3.} Ne5 13. e4 (13. Be3 Qa6 14. Bd4 Rac8 15. f4 Nc4 16. e4 Nd7 17. Bxg7 Kxg7 18. Qd4+ {0-1 (68) Bora,S (2370)-Becerra Rivero,J (2531) chess.com INT 2018}) 13... Rfc8 14. Qe2 (14. Be3 $5 {[%cal Re3b6]} Qb4 15. Bd4 $14) 14... a5 $146 ({Predecessor:} 14... Qd8 15. Bh3 Rc7 16. Rac1 Ned7 17. Rxc7 Qxc7 18. Rc1 {1-0 (30) Kimelman,G (2209)-Palacio,E (1675) Montevideo 2018}) 15. Rac1 a4 16. Be3 Qb4 17. Bd2 $36 {[%mdl 2048] White has good play.} Qb6 18. Be3 Qa6 19. Qxa6 bxa6 20. Na5 Nd3 21. Rxc8+ Rxc8 22. Nc6 Rc7 (22... Kf8 $1 $14) 23. b3 axb3 24. axb3 Ng4 {[#]} 25. Bg5 ({Better is} 25. Bd2 $1 $16) 25... Kf8 $11 26. Bf3 Nge5 27. Nxe5 Nxe5 28. Be2 Rb7 29. Rc1 {[%cal Rc1c8]} f5 30. exf5 gxf5 31. Bxa6 (31. Rc3 {feels hotter.} a5 32. Kg2 Bf6 33. Bd2 Kg7 34. Ba6) 31... Rxb3 {...Nf3+ is the strong threat.The position is equal.} 32. Kg2 h6 33. Be3 Ng4 34. Bc8 (34. Rc8+ {seems wilder.} Kf7 35. Bc1 Bd4 36. Rc4 Bb2 37. Bd2) 34... Nxe3+ 35. fxe3 Rxe3 36. Bxf5 {KRB-KRB} Bf6 37. Be6 Kg7 38. Rf1 h5 39. Rf3 Rxf3 40. Kxf3 h4 {Accuracy: White = 61%, Black = 48%.} 1/2-1/2

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.24"]
[Round "6.3"]
[White "Kiewra, Keaton"]
[Black "Arias Santana, Mauricio"]
[Result "1/2-1/2"]
[ECO "C77"]
[WhiteElo "2372"]
[BlackElo "2292"]
[Annotator "TA"]
[PlyCount "116"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,116,-21,0,0,0,0,0,0,-6,-11,-10,-26,-7,-84,-72,-109,-81,-78,-78,-81,-76,-85,-29,-32,-18,-22,-15,-15,-19,-16,-7,-73,-72,-61,-37,-163,-163,-160,-160,-160,-151,-157,-164,-156,0,-146,-180,-180,-178,-163,-153,-227,-229,-212,-108,-156,-131,-117,-121,-147,-118,-181,0,-8,-8,-11,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d4 exd4 6. O-O Be7 7. e5 Ne4 8. Nxd4 Nc5 9. Bxc6 {C84: Closed Ruy Lopez: Unusual White 6th moves} (9. Nf5 g6 10. Bxc6 dxc6 11. Nxe7 Qxe7 12. Bh6 Rg8 13. Nc3 g5 14. f4 gxf4 15. Bxf4 Bd7 16. Qf3 O-O-O 17. Qf2 {½-½ (40) Zelcic,R (2508)-Amin,B (2709) Zagreb 2018}) 9... dxc6 10. Nc3 Ne6 11. Nf5 Qxd1 12. Rxd1 Bf8 13. Ne4 Bd7 14. g4 $146 (14. Be3 $11) ({Predecessor:} 14. Be3 h6 15. Nxh6 Rxh6 16. Bxh6 f5 17. exf6 gxh6 {½-½ (30) Wojdak,J (1913)-Nowak,M (2281) Poznan 2019}) 14... h5 $17 15. h3 hxg4 16. hxg4 c5 17. Be3 Bc6 18. Nfg3 Be7 ({Black should try} 18... Rh3 $17) 19. f3 $11 Rd8 20. Kg2 Rxd1 21. Rxd1 b6 22. c4 g6 23. Nc3 (23. b3 $11) 23... f6 $17 24. exf6 Bxf6 25. Bc1 (25. Rd2 $15) 25... Bxc3 $1 $19 26. bxc3 {[#]} Rf8 $1 27. Ne4 Bxe4 $1 28. fxe4 $17 {[%mdl 4096] Endgame KRB-KRN} Nf4+ 29. Kg3 g5 $2 (29... Ne2+ $17 30. Kg2 Nxc1 31. Rxc1 Rf4) 30. Bxf4 (30. Rd2 $1 $11) 30... Rxf4 $11 {KR-KR} 31. Rd5 Rxe4 32. Rxg5 Rxc4 33. Re5+ (33. Rg7 $17) 33... Kf7 $19 34. Re3 Ra4 ({Black should play} 34... b5 $19 35. Kh4 b4 36. cxb4 cxb4) 35. Re2 Ra3 36. Rc2 c4 37. Kf4 {[#]} Kg6 $1 38. Re2 (38. g5 $17 {might work better.}) 38... Kf7 $2 (38... Rxc3 $19 {Threatens to win with ...Ra3.} 39. Re6+ Kf7) 39. Rc2 $11 {The position is equal.} Ra5 40. Rd2 Rc5 41. Rd7+ Kg6 42. Re7 Rc6 43. Ke4 b5 44. Kd5 Rd6+ 45. Kc5 Rd3 46. Re6+ Kg5 47. Rxa6 Rxc3 48. Kxb5 Kxg4 49. a4 Rc1 50. Rc6 c3 51. Kb4 Kf5 52. Rxc7 c2 {White must now prevent ...Rb1+.} 53. Kb3 Ke6 54. Kb2 Kd6 55. Rc8 Rb1+ 56. Kxc2 Rb4 57. Ra8 Kc7 58. Kc3 Rh4 {Accuracy: White = 54%, Black = 67%.} 1/2-1/2

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.24"]
[Round "6.4"]
[White "Torres Rosas, Luis Carlos"]
[Black "Gauri, Shankar"]
[Result "1-0"]
[ECO "D90"]
[WhiteElo "2360"]
[BlackElo "2340"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,57,1,20,0,-6,-18,-2,-6,11,5,95,84,64,64,131,131,188,132,274,242,241,190,183,172,291,304,405,356,362,357,497,487,818,822,637,807,805,726,795,771,784,744,754,720,6295,6285,29994,29995,29995,29996]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. h4 (5. h3 dxc4 6. e4 c5 7. d5 O-O 8. Bxc4 b5 9. Nxb5 Nxe4 10. O-O Ba6 11. Qe2 Nd6 12. Nxd6 Qxd6 {0-1 (94) Meier,G (2628)-Vachier Lagrave,M (2773) Karlsruhe/Baden Baden 2019}) 5... c6 6. Bg5 {D90: Grünfeld: 4 Nf3 Bg7 sidelines} dxc4 7. e4 b5 8. e5 {The position is equal.} Nd5 9. h5 h6 {[#]} (9... f6 $11 10. Bd2 Nd7) 10. hxg6 $1 $16 fxg6 ({Not} 10... hxg5 11. Rxh8+ Bxh8 12. gxf7+ Kxf7 13. Nxg5+ Kg6 14. Nh3 $17) ({Reject} 10... Nxc3 $6 11. bxc3 hxg5 12. Rxh8+ Bxh8 13. gxf7+ Kxf7 14. Nxg5+ Kg6 15. Qf3 $11) 11. Bd2 Nxc3 (11... g5 $14) 12. bxc3 Bg4 $146 {[#]} (12... Qd5 $16) ({Predecessor:} 12... Be6) 13. Be2 $1 $18 {[%mdl 1024] White has strong compensation.} e6 (13... Nd7 $16 {might work better.}) 14. Nh4 Bf5 15. g4 Be4 16. f3 $36 {[%mdl 2048] White has strong initiative.} g5 (16... h5 {was worth a try.}) 17. fxe4 gxh4 18. O-O Rf8 {[#]} 19. g5 $1 {[%mdl 512]} Rxf1+ (19... hxg5 20. Bh5+) 20. Qxf1 {Hoping for Bh5+.} hxg5 (20... Qe7 $142 21. gxh6 Kd7 22. hxg7 Qxg7+ 23. Qg2 Qxg2+ 24. Kxg2 Na6) 21. Bh5+ Kd7 22. Qf7+ {[%mdl 64] Double Attack} Qe7 23. Qg6 Bxe5 24. Rf1 Bf4 25. Bxf4 gxf4 26. Rxf4 {Threatens to win with Rf7!} b4 {[#]} 27. Rf7 $1 {[%mdl 512]} b3 28. Rxe7+ Kxe7 29. Qe8+ {Accuracy: White = 82%, Black = 21%.} 1-0

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.24"]
[Round "6.5"]
[White "Stearman, Josiah"]
[Black "Polgar-Shutzman, Tom"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "2341"]
[BlackElo "2234"]
[Annotator "TA"]
[PlyCount "134"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,134,14,16,8,8,10,12,10,11,14,32,13,13,16,12,-25,15,7,7,8,16,7,7,7,30,0,8,0,0,0,16,0,5,0,55,53,56,-6,40,34,39,29,64,35,105,52,90,90,61,65,81,28,24,24,44,0,0,22,258,248,218,185,179,178,174,0,0,0,0,0,0,0,-6,-36,0,0,0,-82,0,-292,-273,-341,-338,-327,-319,-308,-318,-580,-577,-1642,-1324,-1739,-1800,-1670,-1546,-12833,-12833,-12833,-12832,-12833,-12833,-5617,0,-588,0,-1430,-1222,-500,0,-12841,-12842,-12842,-12843,-12844,-12845,-12846,-12847,-12847,-12847,-12850,-12848,-12849,-12849,-12850,-12850,-12851,-27999]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 O-O 6. h3 {C50: Hungarian Defence and Giuoco Pianissimo} (6. c3 d6 7. h3 h6 8. Re1 a6 9. a4 a5 10. Nbd2 Be6 11. Bb5 Na7 12. d4 Nxb5 13. dxc5 Na7 14. b3 Re8 15. cxd6 Qxd6 16. Ba3 {1-0 (43) Carlsen,M (2882)-So,W (2776) Saint Louis 2019}) 6... h6 7. c3 Bb6 8. a4 {The position is equal.} d6 9. Re1 Be6 (9... a5 {seems wilder.} 10. Na3 Be6 11. Bd2 Nh5 12. b4 axb4 13. cxb4 Nf4) 10. Nbd2 a5 11. Bxe6 fxe6 12. Qb3 Qd7 $146 ({Predecessor:} 12... Re8 13. Nc4 Ra6 14. Be3 Nd7 15. Bxb6 Nxb6 {1-0 (50) Goldenberg,D (2270)-Kirby,P Winnipeg 1997}) 13. Nc4 Bc5 14. Be3 Bxe3 15. Rxe3 Nh5 16. Rd1 b6 17. g3 Qf7 {White must now prevent ...Nd4!} 18. d4 exd4 19. cxd4 Nb4 20. Rd2 Rae8 21. Na3 Qg6 (21... Nf6 $11) 22. Nb5 Rf7 (22... Nxg3 $2 23. fxg3 Rf7 24. Kh2 $18) 23. Qc4 (23. Nh4 $14 Qg5 24. Ng2) 23... Ree7 ({Stronger than} 23... Nxg3 24. fxg3 Qxg3+ 25. Rg2 $16) 24. Nh4 Qg5 {[#] Threatens to win with ...Nxg3!} 25. Ng2 Qg6 26. Kh2 Kh7 (26... d5 $14 27. Qe2 Nf6) 27. f4 (27. e5 $16) 27... e5 {[%cal Re5f4]} 28. dxe5 dxe5 29. f5 $36 {[%mdl 2048] Black is under pressure.} Qc6 30. Qe2 ({Better is} 30. Qxc6 $16 Nxc6 31. Nh4) 30... Nf6 $11 31. Nh4 Rd7 32. Ng6 Rxd2 33. Qxd2 Qc2 $2 (33... Qe8 $11 {and Black stays safe.}) 34. Qxc2 $18 Nxc2 35. Re2 ({Less strong is} 35. Rc3 Nd4 $14) 35... Nb4 36. g4 Kg8 37. Rd2 $2 ({White should play} 37. Nxe5 $18 Re7 38. Nc4) 37... Rd7 $1 $11 {[%cal Rd7d2]} 38. Rxd7 Nxd7 39. Nxc7 {[%mdl 4096] Endgame KNN-KNN} Nd3 40. h4 Nxb2 41. g5 hxg5 42. hxg5 Nxa4 {And now ...Nac5 would win.} 43. Ne7+ (43. Nb5 $1 $11 {remains equal.}) 43... Kf8 (43... Kf7 $17 44. Ned5 Nac5) 44. Nc6 $2 {[%mdl 8192]} (44. Ng6+ $1 $11 Kg8 45. Nb5) 44... Nac5 45. g6 a4 ({But not} 45... Nxe4 46. Nb5 $19) 46. Nb5 Nxe4 47. Kg2 Nd2 48. Na3 $2 (48. Kg3) 48... Nb3 $19 49. Kf3 Nd4+ 50. Nxd4 exd4 {KN-KN} 51. Ke4 Ke7 52. Kxd4 Kf6 53. Ke4 Nc5+ 54. Kf4 Nd3+ 55. Ke4 Nc5+ (55... Nb4 $142 56. Nb5 Kg5) 56. Kf4 Nd3+ (56... Na6 $142 57. Nb5 Nb4) 57. Ke4 $1 Ne1 58. Nb5 Ng2 $2 (58... Nc2 $19 {Strongly threatening ...a3.} 59. Kd3 Nb4+ 60. Ke4 Nc6) 59. Nd6 $2 {[%mdl 8192]} (59. Nc3 $11) 59... a3 {Black is clearly winning.} 60. Ne8+ Kg5 61. f6 Kxg6 62. fxg7 Kf7 63. Nd6+ {[#]} Kg8 $1 64. Kf5 a2 65. Kg6 a1=Q {( -> ...Qe5)} 66. Nf5 Nh4+ {[%mdl 64] Deflection} 67. Nxh4 Qxg7+ {Accuracy: White = 36%, Black = 52%.} 0-1

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.24"]
[Round "7.1"]
[White "Polgar-Shutzman, Tom"]
[Black "Proleiko, Julian"]
[Result "1/2-1/2"]
[ECO "B40"]
[WhiteElo "2234"]
[BlackElo "2170"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,105,10,17,24,-13,0,0,52,4,47,43,35,47,52,19,21,22,45,14,15,0,0,0,0,-12,-12,-4,-3,-6,-1,-11,16,0,41,26,170,158,157,170,146,34,29,39,59,59,34,50,47,0,45,0,0,0,0,0,42,-9,29,0,101,-9,0,-9,46,-9,46,0,38,-9,-9,-9,0,0,0,0,0,0,0,0,0,-20,0,-128,-128,-128,-128,-128,-128,-128,-128,-128,-128,-128,-125,-125]} 1. Nf3 c5 2. e4 e6 3. g3 Nc6 4. Bg2 Nf6 5. Qe2 d6 6. O-O Be7 7. c3 e5 {C00: French: Unusual White 2nd moves} (7... O-O 8. Rd1 b6 9. d4 cxd4 10. cxd4 d5 11. e5 Nd7 12. Nc3 a5 13. a4 Ba6 14. Nb5 Rc8 15. Bd2 {0-1 (52) Kobalia,M (2608)-Grachev,B (2621) Moscow 2019}) 8. h3 O-O 9. Rd1 Qc7 (9... Be6 $11) 10. Na3 a6 11. d4 b5 12. Nc2 Re8 13. a4 Rb8 $146 ({Predecessor:} 13... Bd7 14. dxc5 dxc5 15. Ne3 bxa4 {1-0 (35) Velikic,A (2207)-Mdivani,M (1958) Novi Sad 2016}) 14. axb5 axb5 15. d5 Na5 16. Bg5 h6 17. Bxf6 Bxf6 18. b4 Nb3 19. Ra3 $36 {[%mdl 2048] White has good play.} c4 20. Na1 Nxa1 21. Rdxa1 Bb7 22. Ne1 Qb6 23. h4 Ra8 (23... Bd8 $11 {and Black has nothing to worry.}) 24. Rxa8 $18 Rxa8 25. Rxa8+ Bxa8 26. Qa2 (26. Qg4 $16) 26... Bb7 $14 27. Bh3 Bd8 28. Nc2 Kf8 29. Ne3 g6 30. Kg2 h5 $1 31. Kf1 Ke8 32. Ke2 Be7 33. Qa1 Kd8 34. Qa2 (34. Qh1 $14) 34... Kc7 35. Qa1 Bf8 {[#]} (35... Qa6 $11 36. Qxa6 Bxa6) 36. Qa2 ({White should play} 36. Qh1 $1 $16) 36... Bh6 37. Qa1 Kd8 ({Better is} 37... Qa6 $11 38. Qxa6 Bxa6) 38. Qa2 (38. Nc2 $14) 38... Ke8 (38... Qa6 $11 39. Qxa6 Bxa6) 39. Qa1 Qa6 40. Qxa6 (40. Qa5 {looks sharper.} Qxa5 41. bxa5 Kd8 42. Nc2 g5 43. hxg5 Bxg5 44. Nb4) 40... Bxa6 {[%mdl 4096] Endgame KBB-KBN} 41. Nc2 f5 42. exf5 Bc8 43. Na3 Bd7 44. Bg2 $1 Bc1 45. Nc2 Bxf5 46. Ne3 (46. Ne1 {feels hotter.} Bh6 47. Nf3 Be4 48. Ne1 Bb1 49. Nf3) 46... Kf7 47. Kd1 (47. Nxf5 $11 {remains equal.} gxf5 48. Bh3) 47... Bxe3 $1 $17 {Black is better.} 48. fxe3 {[#] KB-KB} e4 $1 49. Ke1 Kf6 50. Bf1 Ke5 51. Be2 Kxd5 52. Kf2 Bg4 53. Bxg4 {Accuracy: White = 43%, Black = 36%.} 1/2-1/2

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.24"]
[Round "7.2"]
[White "Gauri, Shankar"]
[Black "Stearman, Josiah"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2340"]
[BlackElo "2341"]
[Annotator "TA"]
[PlyCount "133"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,165,-19,8,0,0,0,30,33,25,-20,0,0,16,4,9,13,13,12,81,73,82,85,83,84,156,147,193,149,146,122,143,141,190,185,170,178,207,207,198,204,211,173,294,291,455,231,210,213,227,231,238,223,344,342,317,321,341,172,166,108,102,70,72,18,55,32,83,80,151,-51,149,160,158,125,116,12,87,87,87,22,562,566,566,544,544,483,544,475,544,537,475,475,475,475,591,365,419,412,361,335,313,306,609,291,291,291,291,291,599,516,419,373,591,551,592,584,558,470,996,870,424,373,29950,313,198,0,29954,29955,29955,29957,29950,5531,5069,0,1191,8,8,8,8,8,8,8,8,8,8,8,29978,29979,29980,29981,29982,29983,29983,29984,29987,29988,29997,5535]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. c4 dxc4 5. Qc2 Qd5 6. Nh4 {A11: English Opening: 1...c6} (6. Nc3 Qf5 7. e4 Qa5 8. e5 Nd5 9. O-O e6 10. d4 cxd3 11. Qxd3 Nd7 12. Bd2 Qb6 13. Qc2 Be7 {0-1 (54) Boger,R (2608)-Plomp,M (2577) ICCF corr 2004}) 6... Qd4 7. Na3 e5 8. Nf3 {White has an edge.} Qd5 9. Qxc4 (9. Nxc4 {looks sharper.} e4 10. Ne3 Qc5 11. Qxc5 Bxc5 12. Ng5) 9... Bxa3 10. Qxd5 cxd5 11. bxa3 Nc6 $146 ({Predecessor:} 11... e4 12. Nd4 Nc6 13. Bb2 O-O 14. O-O Nh5 15. Rac1 Nxd4 16. Bxd4 b6 17. Rc7 Ba6 {½-½ (15) Pfeiffer,M-Riess,J Germany 1991}) 12. Bb2 d4 13. e3 {[%cal Re3d4]} Bg4 (13... O-O $11 {keeps the balance.}) 14. exd4 $16 Bxf3 15. Bxf3 e4 16. d5 $36 {[%mdl 2048] White has strong initiative.} Nxd5 ({Better is} 16... exf3 17. dxc6 bxc6) 17. Bxe4 O-O-O 18. O-O (18. Bxg7 Rhe8 $17) 18... f6 19. Rac1 Kc7 20. d3 Rhe8 21. Rc5 Nb6 22. Bc1 g6 23. Bf4+ Kd7 24. Rb1 f5 25. Bf3 Rc8 (25... Nd4 {was called for.}) 26. Kg2 $18 Nd4 {[#]} (26... Ke7 $142 27. a4 Kf6) 27. Rxc8 (27. Rxb6 $142 $1 {[%mdl 512]} Rxc5 (27... axb6 28. Rd5+) 28. Rd6+ {[%mdl 64] Double Attack} (28. Rxb7+ Ke6 $16) 28... Kc8 29. Rxd4) 27... Rxc8 28. Bxb7 Rc3 29. a4 {aiming for a5.} Ra3 30. Rc1 $1 Rxa4 (30... Kd8 $142 31. Be5 Rxa4) 31. Rc7+ Ke6 32. Rxh7 Rxa2 33. Be3 (33. Bg5 $142) 33... Nc2 34. Bg5 (34. Bd2 $18) 34... Ne1+ $16 35. Kf1 Nxd3 36. Be3 ({White should play} 36. Rg7 $16) 36... Ne5 37. h4 Ng4 (37... Rc2 $14) 38. Bc5 Rc2 (38... Ne5 $142) 39. Re7+ $1 Kf6 40. Rc7 {Black must now prevent Bd4+.} Nc4 41. Bd4+ Ke6 {[#] Strongly threatening ...Nd2+.} 42. Rg7 (42. Rc6+ $1 $16 Kd5 43. Bxa7 Nd2+ 44. Ke2 Rxc6 45. Bxc6+ (45. Kxd2 Ne5 $16) 45... Kxc6 46. Kxd2) 42... Nge5 (42... Nce5 $11) 43. Bxa7 Nd6 44. Bd4 ({White should try} 44. Ba6 $16) 44... Kf6 $2 {[%mdl 8192]} (44... f4 $11 {and Black is okay.}) 45. f4 $18 {[%mdl 64] Pin} Kxg7 46. Bxe5+ Kh6 47. Bxd6 {[%mdl 4096] Endgame} Rc3 48. Kg2 Rc2+ 49. Kh3 Rc3 50. Bf8+ Kh7 51. Bg2 Rd3 52. Be7 Kh6 53. Bg5+ Kh5 {intending ...Rxg3+.} 54. Bf6 Kh6 55. Bf1 Ra3 $2 (55... Re3 56. Be5 Ra3) 56. Bg5+ Kg7 57. Kg2 Rc3 58. Be2 Kf7 $2 (58... Ra3 59. Kf2 Ra2) 59. h5 Rc2 60. Kf1 Rc1+ (60... gxh5 $142 61. Bxh5+ Ke6) 61. Kf2 Rc2 62. hxg6+ Kxg6 63. Ke3 Rc3+ {[#]} (63... Rc5 $142 64. Bd3 Kf7) 64. Bd3 $1 Kh5 {[#]} 65. Kd4 $1 Rb3 $2 (65... Ra3 $18 66. Be7 Ra7 67. Be2+ (67. Bxf5 Rxe7 68. Kd3 Re1 $11) 67... Kg6) 66. Be2+ $2 (66. Bh4 {mates} Kg4 67. Be2+ Kh3 68. Bf1+ Kg4 69. Ke5 Re3+ 70. Kf6 Re8 71. Bb5 Rf8+ 72. Ke5) 66... Kg6 67. Bh4 {Played: Be2-d3} 1-0

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.24"]
[Round "7.3"]
[White "Arias Santana, Mauricio"]
[Black "Torres Rosas, Luis Carlos"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2292"]
[BlackElo "2360"]
[Annotator "TA"]
[PlyCount "26"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,26,22,20,15,20,18,18,25,35,13,37,42,51]} 1. Nf3 Nf6 2. c4 g6 3. b4 Bg7 4. Bb2 O-O 5. g3 d6 6. Bg2 e5 7. d3 Nbd7 8. O-O Re8 9. Nbd2 {A15: English Opening: 1...Nf6} c6 10. Qc2 (10. a4 d5 11. Ne1 h5 12. Nc2 h4 13. cxd5 cxd5 14. e4 hxg3 15. hxg3 d4 16. a5 Nf8 17. Nc4 {1-0 (42) Haub,T (2397)-Kanarek,M (2525) Belgium 2017}) 10... Qe7 11. e3 Nh5 $146 ({Predecessor:} 11... Nf8 12. Rfc1 Nh5 13. d4 e4 14. Ne1 f5 15. d5 Nf6 16. dxc6 bxc6 17. c5 {½-½ (57) Czapski,R (1817)-Wruck,W (1935) Chojnice 2006}) 12. e4 Nhf6 13. d4 exd4 1/2-1/2

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.24"]
[Round "7.4"]
[White "Grabinsky, Aaron"]
[Black "Kiewra, Keaton"]
[Result "1-0"]
[ECO "A01"]
[WhiteElo "2338"]
[BlackElo "2372"]
[Annotator "RC"]
[PlyCount "177"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. b3 {[%emt 0:00:00]} e5 {[%emt 0:01:27]} 2. Bb2 {[%emt 0:00:00]} Nc6 {[%emt 0:00:15]} 3. e3 {[%emt 0:00:14]} Nf6 {[%emt 0:00:28]} 4. Nf3 {[%emt 0:00:23]} e4 {[%emt 0:12:30]} 5. Nd4 {[%emt 0:00:07]} Bc5 {[%emt 0:00:40]} 6. Nxc6 {[%emt 0:00:34]} dxc6 {[%emt 0:00:37]} 7. d3 {[%emt 0:02:33]} Bf5 {[%emt 0:03:40]} 8. Be2 {[%emt 0:01:21]} Qe7 {[%emt 0:01:55]} 9. d4 {[%emt 0:02:25]} O-O-O {[%emt 0:02:00]} 10. a3 {[%emt 0:01:05]} h5 {[%emt 0:03:07]} 11. b4 {[%emt 0:02:16]} Bd6 {[%emt 0:01:34]} 12. h3 {[%emt 0:03:05]} Rh6 {[%emt 0:03:28]} 13. c4 {[%emt 0:01:32]} Qe6 {[%emt 0:00:48]} 14. Qa4 {[%emt 0:02:34]} Kb8 {[%emt 0:02:58]} 15. Nc3 {[%emt 0:00:19]} Rg6 {[%emt 0:06:03]} 16. Bf1 {[%emt 0:00:52]} Be7 {[%emt 0:02:27]} 17. O-O-O {[%emt 0:01:20]} a6 {[%emt 0:10:22]} 18. Kb1 {[%emt 0:01:36]} Nd7 {[%emt 0:04:37]} 19. Qb3 {[%emt 0:08:35]} b5 {[%emt 0:07:56]} 20. d5 {[%emt 0:06:50]} cxd5 {[%emt 0:00:35]} 21. cxb5 {[%emt 0:10:15]} Ne5 {[%emt 0:07:06]} 22. Ne2 {[%emt 0:06:15]} Nd3 {[%emt 0:03:43]} 23. Nd4 {[%emt 0:01:30]} Qd7 {[%emt 0:00:06]} 24. Nc6+ {[%emt 0:01:53]} Rxc6 {[%emt 0:00:15]} 25. bxc6 {[%emt 0:00:05]} Qxc6 {[%emt 0:00:07]} 26. Bxd3 {[%emt 0:01:49]} exd3 {[%emt 0:00:07]} 27. Rd2 {[%emt 0:03:20]} Qc4 {[%emt 0:04:46]} 28. Qa4 {[%emt 0:03:35]} Qb5 {[%emt 0:01:15]} 29. Qxb5+ {[%emt 0:02:14]} axb5 {[%emt 0:00:02]} 30. Bd4 {[%emt 0:00:57]} Kb7 {[%emt 0:00:50]} 31. Kb2 {[%emt 0:00:35]} h4 {[%emt 0:03:06]} 32. Ra1 {[%emt 0:03:57]} Rd6 {[%emt 0:01:11]} 33. Rc1 {[%emt 0:03:32]} Rg6 {[%emt 0:00:51]} 34. Be5 {[%emt 0:00:31]} c6 {[%emt 0:00:21]} 35. f3 {[%emt 0:00:49]} Bg5 {[%emt 0:02:24]} 36. Bd4 {[%emt 0:01:01]} Re6 {[%emt 0:00:09]} 37. Re1 {[%emt 0:00:09]} g6 {[%emt 0:05:03]} 38. Kc3 {[%emt 0:00:15]} Bf4 {[%emt 0:01:41]} 39. Ra2 {[%emt 0:00:54]} Bb8 {[%emt 0:03:34]} 40. a4 {[%emt 0:00:47]} Re8 {[%emt 0:00:54]} 41. Kd2 {[%emt 0:03:37]} Bd6 {[%emt 0:00:21]} 42. Bc5 {[%emt 0:00:43]} Bg3 {[%emt 0:01:20]} 43. Rea1 {[%emt 0:03:39]} Be5 {[%emt 0:00:06]} 44. Rb1 {[%emt 0:03:16]} Ra8 {[%emt 0:00:28]} 45. a5 {[%emt 0:03:29]} Ka6 {[%emt 0:00:10]} 46. Re1 {[%emt 0:01:09]} Re8 {[%emt 0:00:17]} 47. Ra3 {[%emt 0:00:24]} Re6 {[%emt 0:01:05]} 48. Rb3 {[%emt 0:01:06]} Bf6 {[%emt 0:01:36]} 49. Rbb1 {[%emt 0:00:40]} Bg7 {[%emt 0:00:21]} 50. Rf1 {[%emt 0:00:19]} Bh6 {[%emt 0:00:37]} 51. Rbe1 {[%emt 0:00:09]} Bg5 {[%emt 0:00:19]} 52. Kc3 {[%emt 0:00:08]} Bf6+ {[%emt 0:00:24]} 53. Bd4 {[%emt 0:00:10]} Be7 {[%emt 0:00:21]} 54. Rb1 {[%emt 0:02:51]} Bg5 {[%emt 0:00:26]} 55. Kd2 {[%emt 0:00:08]} Be7 {[%emt 0:00:12]} 56. Rfc1 {[%emt 0:00:28]} Bf8 {[%emt 0:00:23]} 57. Rb3 {[%emt 0:01:52]} Be7 {[%emt 0:00:11]} 58. Kd1 {[%emt 0:00:11]} Kb7 {[%emt 0:01:14]} 59. Rbc3 {[%emt 0:01:24]} Bxb4 {[%emt 0:00:18]} 60. a6+ {[%emt 0:00:04]} Kxa6 {[%emt 0:00:19]} 61. Rxc6+ {[%emt 0:00:04]} Rxc6 {[%emt 0:00:18]} 62. Rxc6+ {[%emt 0:00:04]} Ka5 {[%emt 0:00:45]} 63. Rc7 {[%emt 0:00:06]} Ka4 {[%emt 0:00:23]} 64. Bb2 {[%emt 0:06:09]} d2 {[%emt 0:03:52]} 65. Bc3 {[%emt 0:00:08]} Bxc3 {[%emt 0:00:13]} 66. Rxc3 {[%emt 0:00:03]} b4 {[%emt 0:00:04]} 67. Rc7 {[%emt 0:00:17]} b3 {[%emt 0:00:45]} 68. Ra7+ {[%emt 0:00:07]} Kb4 {[%emt 0:00:09]} 69. Kxd2 {[%emt 0:00:11]} b2 {[%emt 0:00:17]} 70. Rb7+ {[%emt 0:00:02]} Ka3 {[%emt 0:00:05]} 71. Kc3 {[%emt 0:00:06]} b1=N+ {[%emt 0:00:17]} 72. Kd4 {[%emt 0:00:07]} Nd2 {[%emt 0:02:39]} 73. Rxf7 {[%emt 0:00:44]} Kb2 {[%emt 0:00:36]} 74. Kxd5 {[%emt 0:01:34]} Bd3 {[%emt 0:00:15]} 75. Rf4 {[%emt 0:00:58]} Nf1 {[%emt 0:00:49]} 76. Kd4 {[%emt 0:00:29]} Kc2 {[%emt 0:00:21]} 77. Rxh4 {[%emt 0:00:50]} Kd2 {[%emt 0:00:07]} 78. e4 {[%emt 0:00:48]} Ne3 {[%emt 0:00:32]} 79. g4 {[%emt 0:01:11]} Nc2+ {[%emt 0:00:52]} 80. Ke5 {[%emt 0:00:16]} Ke3 {[%emt 0:00:07]} 81. Rh6 {[%emt 0:01:24]} Ne1 {[%emt 0:00:39]} 82. Kf6 {[%emt 0:00:57]} Nxf3 {[%emt 0:00:52]} 83. e5 {[%emt 0:00:03]} Kf4 {[%emt 0:00:26]} 84. e6 {[%emt 0:00:25]} g5 {[%emt 0:00:22]} 85. e7 {[%emt 0:00:04]} Bb5 {[%emt 0:00:05]} 86. Rh8 {[%emt 0:00:21]} Ng1 {[%emt 0:01:02]} 87. h4 {[%emt 0:00:26]} gxh4 {[%emt 0:00:22]} 88. g5 {[%emt 0:00:04]} Nf3 {[%emt 0:00:47]} 89. g6 {[%emt 0:00:12]} 1-0

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.24"]
[Round "7.5"]
[White "Cervantes Landeiro, Thalia"]
[Black "Krykun, Yuriy"]
[Result "1/2-1/2"]
[ECO "E44"]
[WhiteElo "2227"]
[BlackElo "2382"]
[Annotator "TA"]
[PlyCount "117"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,117,17,22,45,39,44,41,44,48,54,54,46,26,29,34,34,24,30,29,29,29,24,21,15,0,7,-21,0,0,0,0,14,0,0,0,22,0,0,0,0,0,0,0,9,9,9,9,9,2,16,16,16,9,9,9,9,9,9,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Nge2 Ne4 6. Qc2 Bb7 7. a3 Bxc3+ 8. Nxc3 Nxc3 9. Qxc3 O-O 10. b4 d6 11. Bb2 Nd7 {E44: Nimzo-Indian: Rubinstein: 4...b6 5 Ne2} (11... Qf6 12. Rd1 a5 13. f3 axb4 14. axb4 Nd7 15. Be2 Qh4+ 16. g3 Qh3 17. Kf2 f5 18. d5 e5 19. Bf1 {0-1 (32) Tregubov,P (2575)-Moiseenko,A (2667) Riadh 2017}) 12. d5 {[%csl Gb2][%cal Rc3g7] [#]} e5 13. Be2 a5 {White is slightly better.} 14. O-O f5 15. f4 Qe7 $146 ({Predecessor:} 15... Qf6 16. Bf3 e4 17. Qd2 Qf7 18. Be2 axb4 19. axb4 {1-0 (32) Mancini,M (2301)-Cossin,S (2230) France 2002}) 16. fxe5 Nxe5 17. Qd4 Bc8 18. c5 (18. Bc3 {feels hotter.} Ng4 19. Bxg4 axb4 20. axb4 Rxa1 21. Bxa1 fxg4 22. Rxf8+ Qxf8 23. e4) 18... bxc5 19. bxc5 Ba6 20. cxd6 cxd6 21. Bxa6 Rxa6 {The position is equal.} 22. a4 Raa8 23. Ba3 Rac8 24. Rac1 Qd7 25. h3 h6 26. Rc3 Rxc3 27. Qxc3 Qd8 28. Rc1 Kh7 29. Qc7 Qg5 30. Bxd6 Qxe3+ 31. Kh1 Rf7 32. Qc5 Qe4 {[#] aiming for ...Nd3.} 33. Bxe5 Qxe5 34. d6 Qxc5 35. Rxc5 $11 {[%mdl 4096] Endgame KR-KR} Rd7 $1 36. Rxa5 {Rd5 is the strong threat.} Rxd6 37. Rxf5 Rd1+ 38. Kh2 {White wants to play Ra5.} Ra1 39. Rf4 g5 40. Rb4 Ra3 41. Rb7+ Kg6 42. Rb6+ Kg7 43. Rb4 Kg6 44. h4 gxh4 45. Rxh4 h5 46. Rb4 Kg5 47. Rb5+ Kg4 48. Rb4+ Kg5 49. g3 Ra1 50. Kg2 Kf5 51. Rh4 Kg5 52. Rf4 Ra2+ 53. Kh3 Ra1 54. Rd4 Rh1+ 55. Kg2 Ra1 56. Rd5+ Kg4 57. Rd4+ Kg5 58. Rd5+ Kg4 59. Rd4+ {Accuracy: White = 50%, Black = 80%.} 1/2-1/2

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.25"]
[Round "8.1"]
[White "Proleiko, Julian"]
[Black "Krykun, Yuriy"]
[Result "1-0"]
[ECO "C26"]
[WhiteElo "2170"]
[BlackElo "2382"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,101,19,38,39,26,29,34,42,27,29,27,35,41,38,30,39,33,18,100,109,105,103,120,123,126,119,128,106,115,108,106,99,151,151,156,150,127,91,87,83,83,83,102,93,104,71,71,71,65,68,154,146,161,162,161,130,143,148,150,126,158,151,167,125,137,115,115,111,112,110,110,93,85,85,142,130,146,154,159,134,114,112,193,189,215,195,240,235]} 1. e4 e5 2. Nc3 Nf6 3. g3 d5 4. exd5 Nxd5 5. Bg2 Nxc3 6. bxc3 Bd6 7. Nf3 O-O 8. O-O Nd7 {[%cal Bb8d7,Bd7f6,Bf6e4][%mdl 32]} 9. Re1 {C26: Vienna Game: 2...Nf6, sidelines} (9. d4 exd4 10. cxd4 Nb6 11. Re1 h6 12. Qd3 Qf6 13. c4 c5 14. Bb2 Na4 15. dxc5 Nxb2 16. Qxd6 Be6 {1-0 (58) Adhiban,B (2627)-Grigoriants,S (2594) Benasque 2015}) 9... Re8 10. d4 exd4 11. Rxe8+ {White is slightly better.} Qxe8 12. cxd4 Nf6 13. Bg5 Ne4 14. Be3 $146 ({Predecessor:} 14. Qd3 f5 15. Be3 c6 16. Rb1 b6 {1-0 (48) Lanin,B-Steveson,B (2025) ICCF email 2005}) 14... c6 15. Qd3 Nf6 16. Bg5 Be6 {[#]} (16... Qd8 $11 {remains equal.}) 17. Bxf6 $1 $16 gxf6 18. Nh4 Rd8 19. Be4 h6 20. Re1 Bf8 21. c3 Qd7 22. Bh7+ Kh8 23. Bf5 c5 (23... Re8 $142 24. Re3 Bxf5 25. Nxf5 (25. Qxf5 Qxf5 26. Nxf5 Rd8 $16) 25... b5) 24. Bxe6 fxe6 25. Ng6+ Kg8 {[%cal Rc5d4]} 26. Nf4 e5 27. Qg6+ Qg7 28. dxe5 {Threatens to win with Qf5.} fxe5 29. Qe6+ Qf7 30. Qg4+ (30. Rxe5 {feels hotter.} Qxe6 31. Nxe6 Re8 32. f4 Bd6 33. Re1) 30... Qg7 31. Qxg7+ Bxg7 {[%mdl 4096] Endgame KRB-KRN} 32. Ne6 $1 {[%csl LRc5,LRd8]} Re8 ({Black should try} 32... Rd3 $14) 33. Nxc5 b6 34. Ne4 Rc8 35. Rb1 Rc7 36. Kf1 Kf7 37. Ke2 Ke6 38. f3 Bf8 39. Kd3 Rf7 40. Rf1 b5 41. Ke3 Rc7 42. Rb1 a6 43. a4 bxa4 44. Rb6+ {[%mdl 64] [#] Double Attack} Kf7 (44... Kd7 $142) 45. Rf6+ Kg7 46. Rxa6 a3 47. Kd3 Rf7 48. Nd2 Be7 (48... Bc5 $16 49. Ra5 Bg1) 49. Ke4 $18 {White is clearly better.} Rf6 50. Ra7 Kf8 51. Nc4 {Accuracy: White = 66%, Black = 50%.} 1-0

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.25"]
[Round "8.2"]
[White "Kiewra, Keaton"]
[Black "Cervantes Landeiro, Thalia"]
[Result "1-0"]
[ECO "A28"]
[WhiteElo "2372"]
[BlackElo "2227"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,77,8,13,8,6,8,12,7,9,14,19,13,15,15,15,29,22,0,53,29,69,0,0,0,-1,0,0,0,-1,0,0,0,-5,-98,-88,-87,-4,-127,0,0,0,0,8,8,8,8,10,0,0,0,0,0,0,-34,-12,-14,-11,-41,155,177,379,372,29979,29979,29992,29990,29993,29994,29997,680]} 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. e4 Bb4 5. d3 d6 6. a3 {A28: English Opening: Four Knights Variation} (6. Be2 Bg4 7. a3 Bc5 8. b4 Bb6 9. Be3 Bxf3 10. Bxf3 Nd4 11. Na4 Nxf3+ 12. Qxf3 Bxe3 13. Qxe3 O-O {½-½ (36) Carlsen,M (2882)-Giri,A (2779) Saint Louis 2019}) 6... Bxc3+ 7. bxc3 Nd7 8. g3 {The position is equal.} O-O 9. Bg2 a6 $146 ({Predecessor:} 9... Nb6 10. Nh4 Ne7 11. O-O Rb8 12. a4 Be6 13. a5 Nd7 {½-½ (100) Ibarra Jerez,J (2547)-Kantor,G (2519) Evora 2019}) 10. O-O Nc5 11. Nh4 b5 12. cxb5 axb5 13. Nf5 Ra4 ({Better is} 13... Na4 $11) 14. f4 Kh8 15. d4 (15. Rb1 $14) 15... exd4 $11 16. cxd4 Bxf5 17. dxc5 Bxe4 18. Bxe4 Rxe4 19. Qd5 Qe8 {Black wants to play ...Rd4.} 20. cxd6 cxd6 21. f5 (21. Bb2 $11 {keeps the balance.}) 21... f6 $1 $17 22. Bf4 Re2 ({Black should try} 22... Nd4 $17 23. Kh1 Nc2) 23. Rac1 (23. Rf2 $1 $11 Rxf2 24. Kxf2) 23... Ne7 (23... Ne5 $17 24. Bxe5 dxe5) 24. Qd3 $1 $11 {[%cal Rd3e2]} Qh5 {[%csl Ge2][%cal Rh5h2]} 25. h3 $1 Rb2 26. g4 Qf7 27. Rc7 {Hoping for Qe4.} Qd5 {( -> ...Qg2#)} 28. Qxd5 Nxd5 29. Bxd6 {And now Rc5 would win.} Re8 (29... Ra8 {seems wilder.} 30. Rb7 h6 31. Rd1 Nc3 32. Rd3 Rc8) 30. Rc5 $36 {[%mdl 2048] White has some pressure.} Nb6 31. Rc7 Nc4 32. Be7 Rb3 33. Kh2 Nxa3 $2 {[#]} (33... h5 $15 {keeps the upper hand.}) 34. g5 $1 $16 {[%cal Rg5f6]} Nc4 $2 (34... Rb2+ {might work better.} 35. Kg3 Nc4) 35. gxf6 $18 {f7 is the strong threat.} Kg8 $2 {[#]} (35... Nd2 $18) 36. Rg1 $1 {[%mdl 512] White mates.} Ra8 37. Rxg7+ Kh8 {[#]} 38. Ba3 $1 {[%mdl 512]} Nd6 (38... Raxa3 39. Rc8#) 39. Rxh7+ {Accuracy: White = 58%, Black = 27%.} 1-0

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.25"]
[Round "8.2"]
[White "Kiewra, Keaton"]
[Black "Cervantes, Thalia"]
[Result "1-0"]
[ECO "A28"]
[WhiteElo "2372"]
[BlackElo "2227"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,77,4,2,5,12,4,12,12,14,12,18,14,12,12,17,25,21,0,64,12,64,-2,-8,-10,-6,-6,-6,-6,-6,-6,-10,0,0,-98,-100,-91,-19,-121,0,-6,0,0,0,0,3,0,1,-4,-4,-4,-4,-4,-5,-33,-16,-14,0,-46,184,186,365,356,29984,29985,29992,29990,29993,29994,29997,29998]} 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. e4 Bb4 5. d3 d6 6. a3 {A28: English Opening: Four Knights Variation} Bxc3+ 7. bxc3 Nd7 8. g3 {The position is equal.} O-O 9. Bg2 a6 $146 ({Predecessor:} 9... Nc5 10. O-O f5 11. exf5 Bxf5 12. d4 Ne4 13. Nh4 Nxc3 {1-0 (58) Andreikin,D (2689)-Vallejo Pons,F (2698) Moscow 2011}) 10. O-O Nc5 11. Nh4 b5 12. cxb5 axb5 13. Nf5 Ra4 ({Better is} 13... Na4 $11) 14. f4 ({White should try} 14. Rb1 $14) 14... Kh8 (14... Ne7 $1 $11) 15. d4 (15. Ne3 $14) 15... exd4 $11 16. cxd4 Bxf5 17. dxc5 Bxe4 18. Bxe4 Rxe4 19. Qd5 Qe8 20. cxd6 cxd6 21. f5 (21. Bb2 $11) 21... f6 $17 22. Bf4 Re2 (22... Nd4 $17 23. Kh1 Nc2) 23. Rac1 (23. Rf2 $1 $11 {keeps the balance.} Re1+ 24. Rxe1 Qxe1+ 25. Rf1) 23... Ne7 (23... Ne5 $17 {Strongly threatening ...Qh5!} 24. Bxe5 dxe5) 24. Qd3 $1 $11 {[%cal Rd3e2]} Qh5 {[%csl Ge2][%cal Rh5h2]} 25. h3 $1 {And now g4 would win.} Rb2 26. g4 Qf7 27. Rc7 Qd5 $132 {[%mdl 2048] ( -> ...Qg2#). Black is not keeping still} 28. Qxd5 Nxd5 29. Bxd6 {Threatens to win with Rc5.} Re8 30. Rc5 Nb6 31. Rc7 Nc4 32. Be7 Rb3 33. Kh2 Nxa3 $2 {[#]} (33... h5 $15 {keeps the upper hand.}) 34. g5 $1 $18 {[%cal Rg5f6]} Nc4 $2 (34... Rb2+ 35. Kh1 Rb1 36. Rxb1 Nxb1) 35. gxf6 {Black must now prevent f7.} Kg8 $2 {[#]} (35... Nd2 $18) 36. Rg1 $1 {[%mdl 512] White mates.} Ra8 37. Rxg7+ Kh8 {[#]} 38. Ba3 $1 {[%mdl 512]} Nd6 (38... Raxa3 39. Rc8#) 39. Rxh7+ {Accuracy: White = 52%, Black = 32%.} 1-0

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.25"]
[Round "8.3"]
[White "Torres, Luis"]
[Black "Grabinsky, Aaron"]
[Result "1/2-1/2"]
[ECO "E12"]
[WhiteElo "2360"]
[BlackElo "2338"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,87,10,7,-11,31,33,34,36,41,31,38,0,0,0,11,0,31,-10,-9,-8,30,30,22,25,30,28,35,35,25,0,0,0,0,-39,0,-34,-32,-33,-20,-33,-19,-17,-12,-27,0,-58,0,-53,0,-5,-18,-66,-73,-83,-67,-74,-4,-27,-18,-85,-86,-72,-37,-43,0,0,0,0,0,0,0,0,7,13,47,0]} 1. d4 e6 2. Nf3 b6 3. c4 Nf6 4. Bf4 Bb7 5. e3 Be7 6. Nc3 Nh5 7. Bg3 d6 8. d5 {E12: Queen's Indian: Unusual White 4th moves, 4 a3, 4 Nc3 Bb7 5 a3 and 4 Nc3 Bb7} e5 9. Nd2 g6 10. Be2 Ng7 11. Qc2 $146 ({Predecessor:} 11. b4 O-O 12. Nb3 Nd7 13. f3 Bh4 14. Bxh4 Qxh4+ 15. g3 Qe7 {1-0 (44) Ponomariov,R (2687)-Michalik,P (2549) Czech Republic 2018}) 11... Nf5 12. Nde4 Nd7 13. O-O-O a5 14. Kb1 O-O 15. Bd3 (15. h4 $5) 15... Bc8 16. Qe2 Ng7 {[#] And now ...f5 would win.} 17. f3 f5 18. Nd2 $1 Nc5 19. Bc2 Bf6 20. e4 Bh4 21. Bxh4 (21. Qe1 {keeps more tension.} Bf6 22. Bf2 Bd7 23. a3 a4 24. g3) 21... Qxh4 22. g3 Qe7 23. Nf1 Bd7 24. b3 Rf7 25. Ne3 Raf8 26. Rdf1 fxe4 27. fxe4 Bh3 28. Rxf7 Qxf7 (28... Rxf7 {feels hotter.} 29. Ncd1 Ne8 30. a3 Nf6 31. Nf2 Bd7) 29. Ncd1 (29. a3 $11) 29... h5 (29... Ne8 $15) 30. Rg1 (30. a3 $11) 30... Kh7 ({Black should try} 30... Ne8 $15) 31. Kc1 Ne8 32. Kd2 Nf6 33. Nf2 Bd7 34. Rf1 Qg7 (34... Qe8 $17) 35. Kc3 c6 36. a3 (36. Kb2 $11 {remains equal.}) 36... cxd5 $17 37. cxd5 Qh6 38. Kb2 Bc8 39. b4 Ba6 40. Nc4 {[%mdl 64] [#] Double Attack} Ncd7 41. Bd3 Bxc4 42. Bxc4 axb4 43. axb4 Kg7 44. Bb5 {Accuracy: White = 45%, Black = 50%.} 1/2-1/2

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.25"]
[Round "8.3"]
[White "Torres Rosas, Luis Carlos"]
[Black "Grabinsky, Aaron"]
[Result "1/2-1/2"]
[ECO "E12"]
[WhiteElo "2360"]
[BlackElo "2338"]
[PlyCount "87"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]

{[%evp 13,87,16,8,0,41,43,44,50,37,24,41,-16,5,5,9,5,35,-13,-8,-26,32,32,31,35,32,23,23,26,27,0,5,0,0,-21,-6,-41,-25,-39,-29,-29,-29,-20,-20,-30,-10,-39,0,-57,0,-24,-14,-73,-70,-76,-73,-72,-18,-42,-12,-75,-94,-93,-36,-51,0,0,0,0,0,0,0,0,5,0,63,0]} 1. d4 e6 2. Nf3 b6 3. c4 Nf6 4. Bf4 Bb7 5. e3 Be7 6. Nc3 Nh5 7. Bg3 d6 8. d5 {E12: Queen's Indian: Unusual White 4th moves, 4 a3, 4 Nc3 Bb7 5 a3 and 4 Nc3 Bb7} e5 9. Nd2 g6 10. Be2 Ng7 11. Qc2 $146 ({Predecessor:} 11. b4 O-O 12. Nb3 Nd7 13. f3 Bh4 14. Bxh4 Qxh4+ 15. g3 Qe7 {1-0 (44) Ponomariov,R (2687)-Michalik,P (2549) Czech Republic 2018}) 11... Nf5 12. Nde4 (12. Bg4 $14) 12... Nd7 13. O-O-O a5 14. Kb1 O-O 15. Bd3 (15. h4 $5) 15... Bc8 16. Qe2 Ng7 (16... Nxg3 $11 17. hxg3 f5) 17. f3 $14 f5 18. Nd2 $1 Nc5 19. Bc2 Bf6 20. e4 Bh4 21. Bxh4 Qxh4 22. g3 Qe7 23. Nf1 Bd7 24. b3 Rf7 25. Ne3 Raf8 26. Rdf1 fxe4 27. fxe4 Bh3 28. Rxf7 Qxf7 29. Ncd1 h5 30. Rg1 ({White should try} 30. a3 $11) 30... Kh7 (30... Ne8 $15) 31. Kc1 Ne8 32. Kd2 (32. a3 $11) 32... Nf6 $17 33. Nf2 Bd7 34. Rf1 Qg7 (34... Qe8 $17) 35. Kc3 $11 c6 36. a3 (36. Kb2 $11 {keeps the balance.}) 36... cxd5 $17 37. cxd5 Qh6 ({Better is} 37... Bc8 $17 {...Ba6 is the strong threat.} 38. Rg1 b5 $1 {[%mdl 512]}) 38. Kb2 {[#]} Bc8 ({Black should play} 38... Bb5 $1 $15 {[%mdl 512]} 39. Nc4 (39. Qxb5 Qxe3) 39... Nfd7) 39. b4 $11 Ba6 40. Nc4 {[%mdl 64] Double Attack} Ncd7 41. Bd3 Bxc4 42. Bxc4 axb4 43. axb4 Kg7 (43... h4 $11) 44. Bb5 {Accuracy: White = 41%, Black = 44%.} (44. h4 $14) 1/2-1/2

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.25"]
[Round "8.4"]
[White "Stearman, Josiah"]
[Black "Arias, Mauricio"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "2341"]
[BlackElo "2292"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,62,0,25,0,17,0,0,-26,0,7,5,-37,-25,-18,-26,-100,-92,-124,-103,-142,-116,-125,-95,-101,-101,-257,-248,-250,-239,-273,-279,-270,-267,-235,-231,-334,-364,-866,-829,-959,-901,-29993,-29994,-29995,-29996,-29996,-29997,-29997,-29998]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. h3 Nc6 9. c3 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves} (9. c4 Nb4 10. Be2 dxc4 11. Bxc4 Nf6 12. Nc3 c6 13. Bf4 Nbd5 14. Be5 Be6 15. Bb3 h6 16. Re1 Re8 17. Rc1 Rc8 18. Rc2 Bb4 19. Nd2 Nb6 20. Rc1 Bxb3 21. Qxb3 {0-1 (37) Fernandes,A (2478)-Rizouk,A (2499) Santo Antonio 2003}) 9... Bf5 10. Bf4 Re8 11. Qb3 $146 {[#]The position is equal.} ({Predecessor:} 11. Qc2 Qd7 12. Nbd2 Nxd2 13. Qxd2 Bxd3 14. Qxd3 h6 15. Rfe1 Bd6 16. Bxd6 Qxd6 {1-0 (51) Soldado Pastor,L (1829)-Castaneda Munoz,A (1916) Llinars del Valles 2015}) 11... Nc5 $1 {[%mdl 512]} 12. dxc5 Bxd3 13. Qxb7 Bxf1 14. Qxc6 Bd3 15. Bxc7 (15. Nbd2 $11) 15... Qc8 $1 $17 {White must now prevent ...Bf5.} 16. Nbd2 Ba6 {And now ...Bb7 would win.} 17. Ne5 Bf6 18. Ng4 Re6 19. Qxd5 Bb7 20. c6 $2 (20. Nxf6+ $17 gxf6 21. c6 Bxc6 22. Qa5) 20... Bxc6 $19 21. Qa5 Qb7 22. Nb3 Bxg2 23. Nc5 {[#]} Qf3 $1 {[%mdl 512]} 24. Nxe6 Qxh3 $40 {[%csl Gg2][%cal Rh3h1][%mdl 128] Black is out for blood.} ({Inferior is} 24... fxe6 25. Qh5 $11) 25. Nxf6+ (25. Nh2 $142 fxe6 26. Qb4) 25... gxf6 {[%csl Gg2][%cal Rh3h1]} 26. Bh2 $2 (26. f3 fxe6 27. Qb5) 26... fxe6 27. Qc7 {[#]} e5 $1 {( -> ...Bd5)} 28. Rd1 Bf3 {[%csl Gf3][%cal Rh3g2] Black mates.} 29. Rd8+ Rxd8 {[%mdl 64] Overworked Piece} 30. Qxd8+ Kf7 {[%csl Gf3][%cal Rh3g2]} 31. Qc7+ Kg6 {Accuracy: White = 12%, Black = 89%.} 0-1

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.25"]
[Round "8.4"]
[White "Stearman, Josiah"]
[Black "Arias Santana, Mauricio"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "2341"]
[BlackElo "2292"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,62,34,21,-8,0,0,0,-15,6,6,11,-37,-36,-31,-22,-98,-105,-123,-97,-191,-154,-160,-165,-162,-127,-218,-218,-202,-209,-268,-253,-248,-247,-247,-237,-328,-346,-831,-777,-922,-889,-29993,-29994,-29995,-29996,-29996,-29997,-29997,-29998]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. h3 Nc6 9. c3 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves} (9. c4 Nb4 10. Be2 dxc4 11. Bxc4 Nf6 12. Nc3 c6 13. Bf4 Nbd5 14. Be5 Be6 15. Bb3 h6 16. Re1 Re8 17. Rc1 Rc8 18. Rc2 Bb4 19. Nd2 Nb6 20. Rc1 Bxb3 21. Qxb3 {0-1 (37) Fernandes,A (2478)-Rizouk,A (2499) Santo Antonio 2003}) 9... Bf5 10. Bf4 Re8 11. Qb3 $146 {The position is equal.} ({Predecessor:} 11. Qc2 Qd7 12. Nbd2 Nxd2 13. Qxd2 Bxd3 14. Qxd3 h6 15. Rfe1 Bd6 16. Bxd6 Qxd6 {1-0 (51) Soldado Pastor,L (1829)-Castaneda Munoz,A (1916) Llinars del Valles 2015}) 11... Nc5 (11... Bd6 {seems wilder.} 12. Bxd6 Qxd6 13. Qc2 Qh6 14. Nbd2 Re6) 12. dxc5 Bxd3 13. Qxb7 Bxf1 14. Qxc6 Bd3 15. Bxc7 (15. Nbd2 $11) 15... Qc8 $1 $17 {aiming for ...Bf5.} 16. Nbd2 Ba6 {White must now prevent ...Bb7.} 17. Ne5 (17. Qa4 $17) 17... Bf6 $19 18. Ng4 Re6 19. Qxd5 Bb7 20. c6 (20. Nxf6+ $17 gxf6 21. c6 Bxc6 22. Qa5) 20... Bxc6 21. Qa5 Qb7 $1 {[%csl LRb2,LRg2]} 22. Nb3 Bxg2 23. Nc5 {[#]} Qf3 $1 {[%mdl 512]} 24. Nxe6 Qxh3 $40 {[%csl Gg2][%cal Rh3h1][%mdl 128] Black is out for blood.} ({Not} 24... fxe6 25. Qh5 $11) 25. Nxf6+ gxf6 {[%csl Gg2][%cal Rh3h1]} 26. Bh2 $2 (26. f3 fxe6 27. Qb5) 26... fxe6 27. Qc7 {[#]} e5 $1 {( -> ...Bd5)} 28. Rd1 Bf3 {[%csl Gf3][%cal Rh3g2] Black mates.} 29. Rd8+ Rxd8 {[%mdl 64] Overworked Piece} 30. Qxd8+ Kf7 {[%csl Gf3][%cal Rh3g2]} 31. Qc7+ Kg6 {Accuracy: White = 29%, Black = 88%.} 0-1

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.25"]
[Round "8.5"]
[White "Polgar-Shutzman, Tom"]
[Black "Gauri, Shankar"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "2234"]
[BlackElo "2340"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,72,19,19,19,27,17,20,16,51,45,42,11,18,22,19,0,0,0,0,-12,-12,-27,0,0,0,0,0,0,18,0,0,-6,-2,-10,0,0,0,-10,0,-9,-3,-17,-10,-145,-30,-30,-31,-64,-11,-12844,-12842,-29992,-29993,-29993,-29994]} 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. O-O O-O 6. c4 dxc4 7. Na3 {[%cal Bb1a3,Ba3c4,Bc4e5][%mdl 32]} c3 8. bxc3 c5 9. Ne5 Nc6 10. Nxc6 bxc6 11. Nc4 {D77: Fianchetto Grünfeld: 6 0-0: Replies other than 6...c6} Nd5 12. Bd2 Ba6 13. Ne5 $1 {[%cal Re5c6] The position is equal.} Bxe5 (13... Qc7 14. Re1 Bxe5 15. dxe5 Qxe5 16. Qc1 Rfd8 17. Qa3 Bb5 {1-0 (54) Vitiugov,N (2721)-Najer,E (2681) Sochi 2016}) 14. dxe5 Qc7 15. f4 $146 ({Predecessor:} 15. Qa4 Bxe2 16. Rfe1 Bd3 17. Qh4 c4 18. Be4 Rab8 19. Bg5 Rfe8 20. Bxd5 cxd5 21. Re3 {½-½ (21) Stupak,K (2458)-Can,E (2460) Herceg Novi 2008}) 15... Rfd8 16. Qe1 Rab8 17. Rf2 Nb6 18. e4 Nc4 19. Bf1 Nxd2 20. Bxa6 Qa5 21. Rxd2 Qxa6 22. Rad1 Rxd2 23. Qxd2 $11 {[%mdl 4096] Endgame KQR-KQR} Qc4 24. Qc2 Qe6 25. Rd2 Kg7 26. Qd3 a5 27. Kg2 h5 28. h4 a4 29. Rf2 a3 30. c4 Rb4 31. f5 (31. Rc2 $11) 31... Qxc4 (31... Qxe5 $17 {Threatens to win with ...f6.} 32. fxg6 f6) 32. f6+ exf6 33. exf6+ {[#]} Kh7 $1 34. Qd7 $2 {[%mdl 8192]} (34. Qxc4 $11 Rxc4 35. Kf3) 34... Rb2 $19 35. Qe8 Qxa2 36. Rxb2 axb2 {Accuracy: White = 38%, Black = 74%.} 0-1

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.25"]
[Round "8.5"]
[White "Polgar-Shutzman, Tom"]
[Black "Shankar, Gauri"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "2234"]
[BlackElo "2340"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,72,15,16,16,19,12,20,20,36,51,46,31,23,22,12,4,8,0,0,-17,0,-13,0,0,0,0,0,0,17,0,0,-10,0,0,0,0,0,-12,-12,-14,-12,-8,-2,-137,-17,-17,-17,-34,-13,-29981,-29982,-29992,-29993,-29993,-29994]} 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. O-O O-O 6. c4 dxc4 7. Na3 {[%cal Bb1a3,Ba3c4,Bc4e5][%mdl 32]} c3 8. bxc3 c5 9. Ne5 Nc6 10. Nxc6 bxc6 11. Nc4 {D77: Fianchetto Grünfeld: 6 0-0: Replies other than 6...c6} Nd5 12. Bd2 Ba6 13. Ne5 $1 {[%cal Re5c6] The position is equal.} Bxe5 (13... Qc7 14. Re1 Bxe5 15. dxe5 Qxe5 16. Qc1 Rfd8 17. Qa3 Bb5 {1-0 (54) Vitiugov,N (2721)-Najer,E (2681) Sochi 2016}) 14. dxe5 Qc7 15. f4 $146 ({Predecessor:} 15. Qa4 Bxe2 16. Rfe1 Bd3 17. Qh4 c4 18. Be4 Rab8 19. Bg5 Rfe8 20. Bxd5 cxd5 21. Re3 {½-½ (21) Stupak,K (2458)-Can,E (2460) Herceg Novi 2008}) 15... Rfd8 16. Qe1 Rab8 17. Rf2 Nb6 $1 18. e4 Nc4 19. Bf1 Nxd2 20. Bxa6 Qa5 21. Rxd2 Qxa6 22. Rad1 Rxd2 23. Qxd2 $11 {[%mdl 4096] Endgame KQR-KQR} Qc4 24. Qc2 Qe6 25. Rd2 Kg7 26. Qd3 a5 {[%cal Ba7a5,Ba5a4,Ba4a3][%mdl 32]} 27. Kg2 h5 28. h4 a4 29. Rf2 a3 30. c4 Rb4 31. f5 (31. Rc2 $11 {remains equal.}) 31... Qxc4 ({Black should try} 31... Qxe5 $17 {Hoping for ...f6.} 32. fxg6 f6) 32. f6+ exf6 33. exf6+ {[#]} Kh7 $1 34. Qd7 $2 {[%mdl 8192]} (34. Qxc4 $11 Rxc4 35. Kf3) 34... Rb2 {Black mates.} 35. Qe8 Qxa2 36. Rxb2 axb2 0-1

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.26"]
[Round "9.1"]
[White "Gauri, Shankar"]
[Black "Proleiko, Julian"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2340"]
[BlackElo "2170"]
[Annotator "TA"]
[PlyCount "131"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,131,30,47,7,26,28,66,54,68,62,75,53,55,55,48,48,91,60,64,39,95,55,76,74,59,14,17,0,0,0,0,-45,-43,-43,-39,-65,-54,-60,-45,-107,0,-2,-2,-2,149,-118,0,-100,-28,-33,-39,-31,-32,-113,-146,-122,-101,-102,0,0,422,420,427,406,422,414,416,411,417,413,416,393,363,293,466,475,472,458,677,657,660,658,657,647,606,585,568,548,453,250,572,566,555,551,1327,453,29957,29955,29968,29969,29968,29970,29969,29970,29971,29973,29973,29973,29974,29975,29974,29975,29974,29975]} 1. Nf3 g6 2. e4 d6 3. d4 Nf6 4. Bd3 Bg7 5. O-O O-O 6. Re1 Nbd7 7. c3 e5 8. Bg5 h6 9. Bh4 Qe8 10. Nbd2 Nh5 11. Bf1 {B07: Pirc Defence: Miscellaneous Systems} (11. Nc4 Bf6 12. Ne3 Bxh4 13. Nxh4 Nf4 14. Bf1 Nf6 15. Qc2 Qe7 16. Nf3 Ng4 17. Nxg4 Bxg4 18. Nd2 Rae8 {0-1 (28) So,W (2815)-Giri,A (2785) chess.com INT 2017}) 11... g5 12. Bg3 Nf4 $146 ({Predecessor:} 12... Nxg3 13. hxg3 Nb6 14. dxe5 dxe5 15. Nh2 Be6 16. Be2 Rd8 17. Qc2 f5 18. exf5 Bxf5 {1-0 (50) Tomashevsky,E (2444)-McPhillips,K (2187) Chalkidiki 2003}) 13. Nc4 {White is slightly better.} Qe7 14. Ne3 Nf6 15. Qc2 Re8 16. dxe5 dxe5 17. Rad1 Qc5 18. a4 a5 19. Nd2 Ng4 (19... N4h5 $14) 20. Nf5 Be6 21. h3 Nf6 22. b3 Rad8 23. Nc4 Bxf5 24. exf5 e4 25. Ne3 Rxd1 26. Rxd1 N4d5 $1 {[%cal Rd5e3]} 27. Nxd5 Nxd5 28. Bc4 c6 29. Bh2 (29. Bxd5 $1 $15 cxd5 30. Qd2) 29... Nxc3 ({Black should try} 29... b6 $17 {Black wants to play ...e3.} 30. Bg3 Bxc3) 30. Rd7 $11 Nd5 {Threatens to win with ...e3.} 31. Bg3 Bd4 $2 (31... Qd4 $11) 32. Kh2 $2 {[%mdl 8192]} (32. Bd6 $1 $16 {[%cal Rd6c5] is forced if you want to stay better.} Qb6 33. Qe2 $1 {[%mdl 512]}) 32... Be5 (32... Re7 $17 33. Rd8+ Kg7) 33. Qe2 (33. Bxe5 $11 {remains equal.} Rxe5 34. Qb2) 33... Bxg3+ (33... Re7 $17 34. Rd8+ Kg7 35. Bxd5 cxd5) 34. fxg3 Re7 35. Rd8+ Kg7 36. Qb2+ ({Better is} 36. Bxd5 $1 $15 cxd5 37. h4) 36... Nf6 $1 $17 37. Rg8+ Kxg8 38. Qxf6 {[%mdl 4096] Endgame KQR-KQB} Qe5 (38... b5 $17 39. Qg6+ Kf8 40. Qxh6+ Ke8) 39. Qg6+ $1 $11 Qg7 $2 {[%mdl 8192] [#]} (39... Kf8 $1 $11 {and Black has nothing to worry.} 40. Qxh6+ Qg7) 40. f6 $1 $18 {[%csl Gf6][%cal Rg6g7][%mdl 512]} Qxg6 41. fxe7 Qf5 42. e8=Q+ Kg7 43. Qd8 h5 44. Qd4+ Kh7 45. Kg1 Kg6 46. Be2 h4 {[#]} (46... g4 {might work better.} 47. h4 Qd5) 47. Bh5+ $1 {[%mdl 512]} Kh7 (47... Kxh5 48. g4+) 48. Qf2 Qxf2+ (48... Qe6 $142 49. Bxf7 Qd6 50. gxh4 Qd1+ 51. Kh2 Qd6+ 52. Qg3 Qe7) 49. Kxf2 hxg3+ 50. Kxg3 {KB-KP} f5 51. Be8 Kg7 52. Bd7 Kf6 {and the idea ...Ke5 leaves Black hopeful.} 53. Bc8 b5 54. Kf2 (54. h4 $142 bxa4 55. bxa4) 54... Ke5 $2 (54... bxa4 {is tougher.} 55. bxa4 c5) 55. axb5 cxb5 {Strongly threatening ...a4.} 56. Bd7 b4 {[#] If Black can now play ...f4 this consolidates a bit.} 57. g3 $1 Kf6 (57... f4 $18) 58. h4 {White mates.} gxh4 59. gxh4 f4 60. Bc6 Kf5 61. Ke2 a4 62. Bxa4 Kg4 63. Bc6 e3 64. Bb5 Kxh4 65. Kf3 Kg5 66. Bd3 {Accuracy: White = 54%, Black = 42%.} 1-0

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.26"]
[Round "9.1"]
[White "Shankar, Gauri"]
[Black "Proleiko, Julian"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2340"]
[BlackElo "2170"]
[Annotator "RC"]
[PlyCount "131"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. Nf3 {[%emt 0:02:38]} g6 {[%emt 0:00:00]} 2. e4 {[%emt 0:03:17]} d6 {[%emt 0:00:00]} 3. d4 {[%emt 0:00:24]} Nf6 {[%emt 0:00:00]} 4. Bd3 {[%emt 0:03:17]} Bg7 {[%emt 0:00:32]} 5. O-O {[%emt 0:02:19]} O-O {[%emt 0:00:09]} 6. Re1 {[%emt 0:03:45]} Nbd7 {[%emt 0:04:18]} 7. c3 {[%emt 0:06:54]} e5 {[%emt 0:00:11]} 8. Bg5 {[%emt 0:02:13]} h6 {[%emt 0:00:14]} 9. Bh4 {[%emt 0:00:03]} Qe8 {[%emt 0:01:16]} 10. Nbd2 {[%emt 0:01:35]} Nh5 {[%emt 0:00:23]} 11. Bf1 {[%emt 0:01:31]} g5 {[%emt 0:06:21]} 12. Bg3 {[%emt 0:01:50]} Nf4 {[%emt 0:04:30]} 13. Nc4 {[%emt 0:03:44]} Qe7 {[%emt 0:01:38]} 14. Ne3 {[%emt 0:07:10]} Nf6 {[%emt 0:01:43]} 15. Qc2 {[%emt 0:08:42]} Re8 {[%emt 0:01:57]} 16. dxe5 {[%emt 0:07:04]} dxe5 {[%emt 0:00:08]} 17. Rad1 {[%emt 0:00:50]} Qc5 {[%emt 0:00:56]} 18. a4 {[%emt 0:08:12]} a5 {[%emt 0:01:58]} 19. Nd2 {[%emt 0:11:08]} Ng4 {[%emt 0:04:44]} 20. Nf5 {[%emt 0:02:05]} Be6 {[%emt 0:09:55]} 21. h3 {[%emt 0:02:03]} Nf6 {[%emt 0:00:17]} 22. b3 {[%emt 0:01:58]} Rad8 {[%emt 0:05:49]} 23. Nc4 {[%emt 0:03:31]} Bxf5 {[%emt 0:02:54]} 24. exf5 {[%emt 0:00:02]} e4 {[%emt 0:01:03]} 25. Ne3 {[%emt 0:01:40]} Rxd1 {[%emt 0:00:56]} 26. Rxd1 {[%emt 0:00:31]} N4d5 {[%emt 0:03:15]} 27. Nxd5 {[%emt 0:04:22]} Nxd5 {[%emt 0:00:01]} 28. Bc4 {[%emt 0:00:19]} c6 {[%emt 0:00:43]} 29. Bh2 {[%emt 0:06:57]} Nxc3 {[%emt 0:07:15]} 30. Rd7 {[%emt 0:00:43]} Nd5 {[%emt 0:00:10]} 31. Bg3 {[%emt 0:02:41]} Bd4 {[%emt 0:02:31]} 32. Kh2 {[%emt 0:00:59]} Be5 {[%emt 0:02:48]} 33. Qe2 {[%emt 0:00:06]} Bxg3+ {[%emt 0:00:26]} 34. fxg3 {[%emt 0:00:01]} Re7 {[%emt 0:00:36]} 35. Rd8+ {[%emt 0:00:28]} Kg7 {[%emt 0:00:26]} 36. Qb2+ {[%emt 0:00:44]} Nf6 {[%emt 0:00:23]} 37. Rg8+ {[%emt 0:01:51]} Kxg8 {[%emt 0:00:13]} 38. Qxf6 {[%emt 0:00:02]} Qe5 {[%emt 0:01:33]} 39. Qg6+ {[%emt 0:00:08]} Qg7 {[%emt 0:00:22]} 40. f6 {[%emt 0:00:22]} Qxg6 {[%emt 0:00:46]} 41. fxe7 {[%emt 0:00:01]} Qf5 {[%emt 0:01:00]} 42. e8=Q+ {[%emt 0:00:07]} Kg7 {[%emt 0:00:04]} 43. Qd8 {[%emt 0:01:16]} h5 {[%emt 0:00:33]} 44. Qd4+ {[%emt 0:00:12]} Kh7 {[%emt 0:00:34]} 45. Kg1 {[%emt 0:00:36]} Kg6 {[%emt 0:04:40]} 46. Be2 {[%emt 0:00:05]} h4 {[%emt 0:01:25]} 47. Bh5+ {[%emt 0:00:57]} Kh7 {[%emt 0:00:25]} 48. Qf2 {[%emt 0:00:05]} Qxf2+ {[%emt 0:00:19]} 49. Kxf2 {[%emt 0:00:02]} hxg3+ {[%emt 0:01:00]} 50. Kxg3 {[%emt 0:00:01]} f5 {[%emt 0:00:07]} 51. Be8 {[%emt 0:00:24]} Kg7 {[%emt 0:00:25]} 52. Bd7 {[%emt 0:00:51]} Kf6 {[%emt 0:00:05]} 53. Bc8 {[%emt 0:00:09]} b5 {[%emt 0:00:41]} 54. Kf2 {[%emt 0:03:15]} Ke5 {[%emt 0:00:37]} 55. axb5 {[%emt 0:00:27]} cxb5 {[%emt 0:00:01]} 56. Bd7 {[%emt 0:00:15]} b4 {[%emt 0:00:22]} 57. g3 {[%emt 0:00:33]} Kf6 {[%emt 0:03:53]} 58. h4 {[%emt 0:00:17]} gxh4 {[%emt 0:01:04]} 59. gxh4 {[%emt 0:00:01]} f4 {[%emt 0:00:01]} 60. Bc6 {[%emt 0:01:11]} Kf5 {[%emt 0:00:09]} 61. Ke2 {[%emt 0:00:24]} a4 {[%emt 0:03:16]} 62. Bxa4 {[%emt 0:00:03]} Kg4 {[%emt 0:00:04]} 63. Bc6 {[%emt 0:00:29]} e3 {[%emt 0:00:23]} 64. Bb5 {[%emt 0:01:00]} Kxh4 {[%emt 0:00:47]} 65. Kf3 {[%emt 0:00:03]} Kg5 {[%emt 0:00:07]} 66. Bd3 {[%emt 0:00:02]} 1-0

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.26"]
[Round "9.2"]
[White "Arias, Mauricio"]
[Black "Polgar-Shutzman, Tom"]
[Result "0-1"]
[ECO "C65"]
[WhiteElo "2292"]
[BlackElo "2234"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,54,17,2,19,0,0,0,0,-6,-5,-9,-2,0,14,-50,-51,-79,-91,-93,-91,-85,-94,-75,-100,-356,-303,-412,-412,-398,-415,-399,-399,-677,-668,-676,-672,-667,-664,-593,-454,-450,-428,-414,-423]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. c3 O-O 6. O-O d6 7. Nbd2 Ne7 {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5} 8. d4 exd4 9. cxd4 Bb6 {The position is equal.} 10. Re1 Bg4 11. Qc2 Bh5 12. b3 $146 ({Predecessor:} 12. b4 Bg6 13. Bd3 Nc6 14. Qc3 d5 15. e5 {½-½ (42) Kryvoruchko,Y (2705)-Heimann,A (2574) Switzerland 2018}) 12... Bg6 13. Bd3 (13. Ba3 $11) 13... Nc6 $1 $15 {[%cal Rc6b4] White must now prevent ...Nb4.} 14. d5 {[#]} Nb4 $1 {[%cal Rb4c2]} 15. Qc4 Nxd3 16. Qxd3 Ng4 $36 {[%mdl 2048] Keeping White busy.} 17. Re2 f5 {Threatens to win with ...Nxf2.} 18. Bb2 $2 {[%mdl 8192]} (18. e5 $17) 18... fxe4 19. Nxe4 {[#]} Nxf2 $1 {[%mdl 576] Decoy} 20. Rxf2 Bxf2+ 21. Kxf2 Qh4+ 22. Ke3 $2 (22. Kg1 Bxe4 23. Qd4) 22... Qf4+ $19 23. Kd4 Rae8 24. Re1 Bxe4 25. Rxe4 Rxe4+ 26. Qxe4 Qf6+ 27. Kd3 Qxb2 {[%mdl 64] Double Attack. Accuracy: White = 27%, Black = 87%.} 0-1

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.26"]
[Round "9.2"]
[White "Arias Santana, Mauricio"]
[Black "Polgar-Shutzman, Tom"]
[Result "0-1"]
[ECO "C65"]
[WhiteElo "2292"]
[BlackElo "2234"]
[Annotator "RC"]
[PlyCount "54"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:01:57]} e5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:04]} Nc6 {[%emt 0:00:00]} 3. Bb5 {[%emt 0:00:06]} Nf6 {[%emt 0:00:00]} 4. d3 {[%emt 0:00:29]} Bc5 {[%emt 0:00:05]} 5. c3 {[%emt 0:00:20]} O-O {[%emt 0:00:16]} 6. O-O {[%emt 0:00:03]} d6 {[%emt 0:00:58]} 7. Nbd2 {[%emt 0:00:23]} Ne7 {[%emt 0:00:58]} 8. d4 {[%emt 0:00:34]} exd4 {[%emt 0:00:22]} 9. cxd4 {[%emt 0:00:02]} Bb6 {[%emt 0:00:10]} 10. Re1 {[%emt 0:01:50]} Bg4 {[%emt 0:01:11]} 11. Qc2 {[%emt 0:02:36]} Bh5 {[%emt 0:03:44]} 12. b3 {[%emt 0:01:10]} Bg6 {[%emt 0:02:36]} 13. Bd3 {[%emt 0:00:35]} Nc6 {[%emt 0:00:16]} 14. d5 {[%emt 0:02:37]} Nb4 {[%emt 0:01:46]} 15. Qc4 {[%emt 0:00:09]} Nxd3 {[%emt 0:00:10]} 16. Qxd3 {[%emt 0:00:02]} Ng4 {[%emt 0:06:28]} 17. Re2 {[%emt 0:07:06]} f5 {[%emt 0:05:19]} 18. Bb2 {[%emt 0:00:44]} fxe4 {[%emt 0:03:40]} 19. Nxe4 {[%emt 0:00:22]} Nxf2 {[%emt 0:00:54]} 20. Rxf2 {[%emt 0:01:55]} Bxf2+ {[%emt 0:00:21]} 21. Kxf2 {[%emt 0:00:02]} Qh4+ {[%emt 0:00:08]} 22. Ke3 {[%emt 0:01:02]} Qf4+ {[%emt 0:00:58]} 23. Kd4 {[%emt 0:00:10]} Rae8 {[%emt 0:11:51]} 24. Re1 {[%emt 0:01:37]} Bxe4 {[%emt 0:04:30]} 25. Rxe4 {[%emt 0:00:07]} Rxe4+ {[%emt 0:00:27]} 26. Qxe4 {[%emt 0:00:03]} Qf6+ {[%emt 0:00:05]} 27. Kd3 {[%emt 0:00:48]} Qxb2 {[%emt 0:00:13] Kd4} 0-1

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.26"]
[Round "9.3"]
[White "Grabinsky, Aaron"]
[Black "Stearman, Josiah"]
[Result "0-1"]
[ECO "B31"]
[WhiteElo "2338"]
[BlackElo "2341"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,108,17,14,14,18,22,29,28,23,20,26,15,6,42,30,128,129,123,120,110,100,108,68,87,61,74,76,83,30,62,50,44,52,53,17,75,76,66,62,71,72,73,68,79,75,92,93,96,85,113,100,94,80,91,0,0,0,0,0,0,0,0,-20,-18,-10,-8,-52,-52,-72,-58,-55,-77,-713,-696,-655,-616,-477,-364,-1181,-1140,-992,-1016,-1255,-1128,-1617,-1535,-29974,-29975,-29974,-29974,-29981,-29981,-29981,-29974]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. h3 Nf6 7. Nc3 Nd7 8. Be3 e5 9. Qd2 h6 {B31: Sicilian: 2...Nc6 3 Bb5 g6} 10. O-O Qe7 11. Nh2 Nf8 {White has an edge.} 12. f4 exf4 13. Bxf4 Ne6 14. Bg3 $36 {[%mdl 2048] Black is under pressure.} Nd4 15. Rae1 {[#]} c4 $146 (15... Be6 $11 {keeps the balance.}) ({Predecessor:} 15... O-O 16. e5 Nf5 17. Bf2 h5 18. Nf3 b6 19. Ne4 Qe6 20. Qf4 Qxa2 21. g4 Nh6 22. Bh4 {1-0 (22) Zhao,J (2607)-Cheparinov,I (2711) China 2018}) 16. Nd5 $1 $16 {[%cal Rd5e7]} ({Don't take} 16. dxc4 $6 O-O $14) 16... cxd5 17. exd5 Be6 18. dxe6 Nxe6 19. dxc4 Rd8 20. Qa5 O-O 21. Be5 b6 22. Qc3 (22. Qb5 $16) 22... Qc5+ 23. Kh1 Bxe5 24. Rxe5 Qd4 25. Re3 (25. Qe1 $5 {[%cal Rh2g4]}) 25... Nc5 (25... Qxc3 $11 26. Rxc3 Nc5) 26. Qxd4 $1 Rxd4 27. b3 Rd2 28. Rc1 f5 29. Nf3 Rd7 30. Rce1 Ne4 31. Ne5 Rd6 32. Nd3 Re8 33. Kg1 Kf7 34. R1e2 Ree6 35. Nf2 ({White should try} 35. Kf1 $16) 35... Nc3 $11 36. Rxe6 Rxe6 37. Rxe6 Kxe6 {[%mdl 4096] Endgame KN-KN} 38. Nd3 Nxa2 39. Nf4+ Kf6 40. Nd5+ Ke5 41. Kf2 Kd4 42. Ke1 {[#]} b5 $1 {[%cal Bb6b5,Bb5c4,Bc4c3][%mdl 544]} 43. Kd2 (43. cxb5 Kxd5) 43... bxc4 44. Ne7 $2 {[%mdl 8192] [#]} (44. bxc4 $17 a5 45. Ne7) 44... c3+ $1 $19 45. Kd1 Nb4 46. Nxg6 Nd5 47. Kc1 $2 (47. Ke2 Ke4 48. Nh8) 47... Ke4 48. g3 a5 49. Nh4 Ne3 50. Ng6 Kf3 51. g4 f4 {Black mates.} 52. Ne5+ Kg3 53. g5 hxg5 54. Nf7 Kh4 {Accuracy: White = 54%, Black = 74%.} 0-1

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.26"]
[Round "9.4"]
[White "Cervantes, Thalia"]
[Black "Torres, Luis"]
[Result "1/2-1/2"]
[ECO "A42"]
[WhiteElo "2227"]
[BlackElo "2360"]
[Annotator "TA"]
[PlyCount "46"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,46,50,18,22,25,13,22,18,2,38,45,49,4,20,22,20,-8,-13,-8,0,0,0,0,0,0,0,-107,-102,-99,-94,-106,-107,-103,-97,-111,-87,-180,-59]} 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 e5 5. d5 a5 6. Be3 Na6 {A42: Modern Defence: Averbakh Variation} (6... Nd7 7. h3 h5 8. Nf3 Bh6 9. Bxh6 Nxh6 10. h4 Nc5 11. Ng5 Qe7 12. g3 f6 13. Nf3 Nf7 14. Bh3 Bxh3 15. Rxh3 {½-½ (56) Goryachkina,A (2478)-Sjugirov,S (2650) Sochi 2017}) 7. Bd3 Bd7 8. Nge2 Qh4 {The position is equal.} 9. O-O $146 ({Predecessor:} 9. g3 Qh3 10. Qd2 Bh6 11. f4 Nf6 12. Ng1 Qh5 13. Be2 Bg4 14. O-O-O {1-0 (23) De Francesco,K (2235)-Lagumina,G (2238) Porto Mannu 2017}) 9... Nh6 10. f3 f5 11. Qe1 Qe7 12. Nb5 f4 13. Bf2 b6 14. c5 bxc5 15. Qxa5 O-O {Threatens to win with ...Nb4.} 16. Nxc7 Nxc7 17. Qxc7 Bf6 {...Nf7 is the strong threat.} 18. Bc4 (18. Nc3 $11 {keeps the balance.}) 18... Rfc8 $1 $36 {[%cal Rc8c7][%mdl 3072] Black has strong compensation. Black is on the roll.} 19. Qb7 Rcb8 20. Qc7 {[#]} Nf7 $1 {White must now prevent ...Qe8.} ({Much weaker is} 20... Rxb2 $6 21. Rfb1 $14) 21. a4 Nd8 {And now ...Rb7 would win.} ({Reject} 21... Rxb2 $6 22. Nc3 $11) (21... Bxa4 $6 22. Qxe7 Bxe7 23. Rfb1 $11) 22. Bxc5 Rc8 23. Qb6 {[#]} (23. Qxd6 $17 {keeps fighting.} Qxd6 24. Bxd6 Rxc4 25. b3) 23... Rxc5 {Accuracy: White = 59%, Black = 83%.} (23... Nf7 $1 $19 24. b4 Be8) 1/2-1/2

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.26"]
[Round "9.4"]
[White "Cervantes Landeiro, Thalia"]
[Black "Torres Rosas, Luis Carlos"]
[Result "1/2-1/2"]
[ECO "A42"]
[WhiteElo "2227"]
[BlackElo "2360"]
[Annotator "TA"]
[PlyCount "46"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,46,39,29,22,18,23,14,18,8,45,43,47,7,29,12,12,14,16,-11,0,0,0,0,0,0,0,-111,-99,-116,-117,-101,-114,-109,-102,-106,-90,-176,-79]} 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 e5 5. d5 a5 6. Be3 Na6 {A42: Modern Defence: Averbakh Variation} (6... Nd7 7. h3 h5 8. Nf3 Bh6 9. Bxh6 Nxh6 10. h4 Nc5 11. Ng5 Qe7 12. g3 f6 13. Nf3 Nf7 14. Bh3 Bxh3 15. Rxh3 {½-½ (56) Goryachkina,A (2478)-Sjugirov,S (2650) Sochi 2017}) 7. Bd3 Bd7 8. Nge2 Qh4 {The position is equal.} 9. O-O $146 ({Predecessor:} 9. g3 Qh3 10. Qd2 Bh6 11. f4 Nf6 12. Ng1 Qh5 13. Be2 Bg4 14. O-O-O {1-0 (23) De Francesco,K (2235)-Lagumina,G (2238) Porto Mannu 2017}) 9... Nh6 10. f3 f5 11. Qe1 Qe7 12. Nb5 f4 13. Bf2 b6 14. c5 bxc5 15. Qxa5 O-O 16. Nxc7 Nxc7 17. Qxc7 Bf6 18. Bc4 (18. Nc3 $11 {remains equal.}) 18... Rfc8 $1 $36 {[%cal Rc8c7][%mdl 3072] Black has strong compensation. Keeping White busy.} 19. Qb7 Rcb8 20. Qc7 {[#]} Nf7 $1 {Hoping for ...Qe8.} ({Reject} 20... Rxb2 $6 21. Rab1 $14) 21. a4 Nd8 {Strongly threatening ...Rb7.} ({But not} 21... Rxb2 $6 22. Nc3 $11) ({Don't play} 21... Bxa4 $6 22. Qxe7 Bxe7 23. Rfb1 $11) 22. Bxc5 Rc8 23. Qb6 {[#]} (23. Qxd6 $17 Qxd6 24. Bxd6 Rxc4 25. b3) 23... Rxc5 {Accuracy: White = 55%, Black = 83%.} (23... Nf7 $1 $19 24. b4 Kg7) 1/2-1/2

[Event "Saint Louis Invitational-B 2019"]
[Site "Saint Louis"]
[Date "2019.11.26"]
[Round "9.5"]
[White "Krykun, Yuriy"]
[Black "Kiewra, Keaton"]
[Result "1/2-1/2"]
[ECO "D41"]
[WhiteElo "2382"]
[BlackElo "2372"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2019.11.21"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,80,13,24,16,26,23,47,7,8,0,0,-73,-64,-72,-56,-66,-57,-79,-81,-78,-79,-85,-81,-98,-101,-136,-81,-102,0,-147,-88,-88,-57,-56,-41,-69,-55,-95,-79,-88,0,-97,0,-239,-206,-371,-378,-316,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 cxd4 8. cxd4 Bb4+ 9. Bd2 Bxd2+ 10. Qxd2 O-O 11. Bc4 b6 12. O-O Bb7 13. Rfe1 Nd7 14. a4 {D41: Queen's Gambit Declined: Semi-Tarrasch with 5 cxd5} Rc8 15. Bd3 a5 16. h3 {White is slightly better.} h6 {[#]} 17. Qe2 $146 ({Predecessor:} 17. Bb5 Nf6 18. Qf4 Qc7 19. Qh4 Rfd8 20. Rad1 Qc2 21. d5 exd5 {1-0 (44) Nihal,S (2598)-Sevian,S (2666) chess.com INT 2019}) 17... Rc3 18. Ba6 (18. Rad1 $11 {remains equal.}) 18... Bxa6 $17 19. Qxa6 Qa8 20. Qe2 Qc6 21. Qb2 Rc8 22. Qa2 Qc4 23. Qd2 Rc2 24. Qf4 Qc7 25. Qh4 Qd8 (25... Nf6 $142 26. Ne5 Rd2) 26. Qf4 Qc7 27. Qh4 $1 {[#]} Qd6 (27... Nf6 $142 $1 28. Ne5 Rd2) 28. d5 {With the idea dxe6.} e5 ({Much weaker is} 28... exd5 $6 29. Nd4 $11) 29. Qg4 R8c7 30. Qg3 {Threatening Nd4!} R7c3 31. Re3 Rxe3 32. fxe3 Qc5 (32... Qg6 $17 33. Qxg6 fxg6) 33. Re1 {[#]} (33. Nh4 $1 $11) 33... Qb4 (33... Rc1 $1 $17 {Strongly threatening ...Qxe3+.} 34. Kh2 Rxe1 35. Qxe1 Nf6) 34. Qh4 $2 (34. Nh4 $11 {and White has nothing to worry.}) 34... Nf6 $19 ({Not} 34... Qxa4 35. Qe7 $17) 35. Rf1 $2 (35. Kh2) 35... Qb2 36. Ne1 Re2 $2 ({Black should try} 36... Rc1 $19 {Threatens to win with ...Qe2.} 37. Kh2 Qe2) 37. Rxf6 $1 $11 {The position is equal.} gxf6 38. Qg4+ Kf8 39. Qc8+ Kg7 40. Qg4+ Kf8 {Accuracy: White = 39%, Black = 63%.} 1/2-1/2

