[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.16"]
[Round "1"]
[White "Boros, Denes"]
[Black "Patel, Advait"]
[Result "1/2-1/2"]
[ECO "C26"]
[WhiteElo "2442"]
[BlackElo "2467"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,56,16,-10,13,12,15,-11,0,-10,0,-54,0,-2,18,11,24,0,35,0,7,4,0,7,6,0,7,0,33,25,27,35,25,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nc3 Nf6 3. g3 d5 4. exd5 Nxd5 5. Nf3 Nxc3 6. bxc3 Nc6 7. Bg2 Bd6 8. O-O O-O 9. d4 h6 {C47: Scotch Four Knights and Four Knights with 4 g3} (9... Bg4 $5 {[%cal Re5e4]} 10. Qd3 exd4 $11) (9... Bf5 10. Rb1 Rb8 11. Re1 Re8 12. dxe5 Nxe5 13. Nxe5 Rxe5 14. Rxe5 Bxe5 15. Qe2 Bxc3 16. Rxb7 Rxb7 17. Bxb7 h6 18. Qf3 Qf6 {½-½ (27) Lu,S (2620)-Zhou,W (2606) China 2017}) 10. Re1 {[%cal Rd4e5]} Qf6 $146 ({Predecessor:} 10... exd4 11. cxd4 Re8 12. Rb1 Rb8 13. Be3 Ne7 14. c4 Nf5 15. c5 Nxe3 16. fxe3 Bf8 17. Ne5 {1-0 (35) Laveryd,P (2390)-Jepson,C (2380) Haninge 1997}) 11. h3 Bf5 12. Rb1 Rab8 13. Be3 (13. Re3 $11) 13... b6 (13... Rfe8 $15) 14. Nh4 $11 exd4 15. cxd4 Ne7 16. d5 {[#] Hoping for Bd4.} Be5 17. Nf3 Bc3 18. Bd4 Bxd4 19. Nxd4 {Black must now prevent Rxe7!} Bd7 20. c4 Nf5 21. Nxf5 Qxf5 22. Qb3 Qf6 23. Qa3 $36 {[%mdl 2048] Black is under pressure.} Qd6 24. Re3 Rbe8 {The position is equal.} 25. c5 Rxe3 26. Qxe3 bxc5 27. Rc1 Re8 28. Qxc5 Re1+ $1 {Accuracy: White = 57%, Black = 55%.} 1/2-1/2

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.16"]
[Round "1"]
[White "Niemann, Hans"]
[Black "Shtembuliak, Evgeny"]
[Result "1/2-1/2"]
[ECO "E62"]
[WhiteElo "2439"]
[BlackElo "2487"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,63,16,23,22,22,22,21,15,17,18,16,9,8,0,0,0,0,0,0,0,0,0,0,0,0,0,7,0,18,0,-8,-6,-6,-41,-6,-6,-6,-6,-7,-8,0,0,0,0]} 1. d4 Nf6 2. c4 d6 3. Nf3 g6 4. Nc3 Bf5 5. g3 Bg7 6. Bg2 c6 7. O-O O-O 8. b3 Ne4 9. Bb2 Nxc3 10. Bxc3 Be4 11. Qd2 d5 {LiveBook: 36 Games} 12. Bh3 {E62: King's Indian: Fianchetto: 6...c6 and Panno Variation (6...Nc6) without ...a6} (12. Rfc1 e6 13. a4 Nd7 14. e3 Re8 {½-½ (14) Cordova,E (2611)-Bruzon Batista,L (2678) Villahermosa 2014}) 12... Bxf3 13. exf3 a5 $146 ({Predecessor:} 13... e6 14. c5 Nd7 15. f4 Re8 16. Rfe1 b6 17. b4 a5 18. a3 Qf6 19. Rec1 axb4 20. axb4 Rxa1 21. Bxa1 {0-1 (35) Vitouch,A (2211)-Groetz,H (2321) Austria 2008}) 14. Rfe1 e6 15. Bf1 Nd7 16. Rac1 a4 17. cxd5 exd5 18. Bb4 Re8 19. Rxe8+ Qxe8 20. Re1 Qd8 21. Bh3 axb3 22. axb3 Nf6 23. Be7 Qb6 (23... Qb8 {keeps more tension.} 24. Bc5 Ne8 25. Qb4 Bf6 26. Be7 Bg7) 24. b4 Re8 25. Bc5 Qd8 {[#] Threatens to win with ...b6.} 26. Rxe8+ Nxe8 27. Qe3 Nd6 28. Bxd6 $1 {The position is equal.} Qxd6 29. Qe8+ Qf8 30. Qc8 $1 Bxd4 31. Qxb7 Qd6 32. Bd7 {Accuracy: White = 69%, Black = 86%.} 1/2-1/2

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.16"]
[Round "1"]
[White "Balakrishnan, Praveen"]
[Black "Gurevich, Dmitry"]
[Result "1/2-1/2"]
[ECO "E06"]
[WhiteElo "2409"]
[BlackElo "2393"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,114,9,20,26,22,0,0,0,0,0,2,-14,-11,-25,-10,-33,20,-13,-5,-12,-6,-18,-18,-19,-11,-47,-17,-16,0,0,0,0,0,0,0,0,0,-100,-79,-91,-86,-75,-87,-81,-88,-87,-91,-80,-54,-183,-180,-188,-185,-171,-168,-168,-142,-142,-144,-152,-16,-16,-16,-16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. O-O c6 7. Qc2 b6 8. Nbd2 Bb7 9. e4 Na6 10. a3 {E06: Closed Catalan: Early deviations} c5 {[%cal Rd5e4]} 11. cxd5 exd5 12. e5 Ne4 13. dxc5 {[#]} Rc8 $146 ({But not} 13... bxc5 $6 14. Nxe4 dxe4 15. Nd2 $16) ({Predecessor:} 13... Naxc5 14. b4 Ne6 15. Bb2 Rc8 16. Qb3 d4 17. Nxe4 Bxe4 {0-1 (58) Moranda,W (2559)-Sargissian,G (2666) Warsaw 2012}) 14. Rd1 {[#] And now Nxe4 would win.} Qe8 15. b4 bxc5 16. b5 {Hoping for Nxe4.} Nc7 ({Reject} 16... Qxb5 $6 17. Nxe4 dxe4 18. Ng5 $14) (16... Nxd2 $15 17. bxa6 (17. Bxd2 Nc7 $15) 17... Nxf3+ 18. Bxf3 Bc6) 17. Nxe4 dxe4 18. Nd2 Nxb5 19. Nxe4 Nd4 20. Qc4 Bc6 21. a4 Rb8 22. Bd2 Nb3 23. Rab1 Nxd2 24. Nxd2 Bxg2 25. Kxg2 Rb4 $36 {[%mdl 2048] Black is pushing.} 26. Rxb4 cxb4 27. Qa6 (27. Nf3 $11) 27... Qd7 28. Qb5 Qxb5 29. axb5 $17 {[%mdl 4096] Endgame KRB-KRN} Rd8 30. Kf3 f6 31. exf6 Bxf6 32. Ke2 Rd5 33. Ne4 (33. Nb3 $15 Rxb5 34. Rd7) 33... Rxb5 $19 34. Nxf6+ gxf6 {KR-KR} 35. Rd8+ Kf7 {Strongly threatening ...b3.} 36. Rd7+ Ke6 37. Rxa7 b3 {Threatens to win with ...b2.} 38. Ra1 Kd5 ({Black should try} 38... Kf5 $17 {White must now prevent ...b2.} 39. f3 b2) 39. Kd3 $11 {The position is equal.} b2 40. Rb1 Rb3+ 41. Kc2 {[%mdl 64] [#] Double Attack} Rf3 42. Rf1 Ke4 43. Kxb2 Rf5 44. f4 Ke3 45. Kc3 Rc5+ 46. Kb3 Rh5 47. Kc4 Ke2 48. Ra1 Kf3 49. Ra2 Rf5 50. Kd4 Rb5 51. Rc2 h5 52. Rc6 Rb2 53. Rxf6 Rxh2 54. Rg6 h4 55. gxh4 Rxh4 56. Rf6 Rxf4+ 57. Rxf4+ Kxf4 {Accuracy: White = 61%, Black = 73%.} 1/2-1/2

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.16"]
[Round "1"]
[White "Bivol, Alina"]
[Black "Kevlishvili, Robby"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2403"]
[BlackElo "2451"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,92,1,0,-63,-49,-63,-45,-48,-41,-81,-70,-110,-106,-102,-109,-112,-112,-162,-98,-202,-182,-196,-158,-151,-159,-167,-117,-132,-22,-35,0,0,0,0,0,-27,0,-6,0,-50,0,-38,-31,-34,-27,-37,-14,-36,-34,-40,-25,-145,-152,-292,-275,-282,-289,-290,-274,-871,-843,-6299,-6199,-5631,-5698,-29982,-29983,-29983,-29984,-29984,-29985,-29985,-29986,-29986,-29987,-29989,-838]} 1. e4 c5 2. Nc3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Qd2 g6 6. b3 {B23: Closed Sicilian: Lines without g3} Bh6 7. f4 Nf6 8. Bb2 O-O 9. O-O-O a5 {LiveBook: 7 Games} 10. Kb1 $146 (10. a4 $11) ({Predecessor:} 10. a4 Nb4 11. Kb1 {1-0 (33) Dubov,D (2691)-Firouzja,A (2561) Abu Dhabi 2018}) 10... a4 $1 $15 11. Nxa4 Nxe4 12. Qe3 Nf6 13. Nf3 Qa5 14. Nd4 Nxd4 $1 15. Qxd4 Bg4 16. Bc3 Qc7 {Strongly threatening ...Rxa4.} 17. Rd3 {[#] With the idea Nb6.} Bf5 (17... b5 $1 $19 {[%cal Rb5a4]} 18. Nb6 Bg7) 18. Rf3 (18. Nb6 $17) 18... Be4 $19 {aiming for ...Rxa4.} 19. Rf2 {[#]} Rxa4 $1 {[%mdl 512]} 20. bxa4 Rc8 21. Bb2 Bxc2+ 22. Ka1 {[#]} Bg7 (22... e5 $1 $17 {[%cal Re5d4]} 23. fxe5 dxe5) 23. Bb5 $11 Bf5 {[%mdl 1024] Black has compensation.} 24. Rff1 Qc2 25. Rf2 Qc7 26. Rff1 Be4 27. Rhg1 d5 28. g4 Qb8 {And now ...Rc2 would win.} (28... Nh5 $5 {[%cal Rg7d4]} 29. Qd2 Bxb2+ 30. Qxb2 Nxf4 $15) 29. Rf2 Ne8 {[%cal Bf6e8,Be8d6,Bd6c4][%mdl 32]} 30. Qe3 Bxb2+ 31. Rxb2 Nd6 32. Rc1 Rxc1+ 33. Qxc1 Qa7 34. f5 (34. a3 $11 {remains equal.}) 34... Qd4 $40 {[%mdl 128] Black attacks with force.} 35. fxg6 (35. a3 $17 {might work better.}) 35... hxg6 $19 ({Not} 35... fxg6 36. Be2 $15) 36. a3 Nc4 37. Bxc4 dxc4 {[%cal Bd5c4,Bc4c3][%mdl 4128] Endgame KQR-KQB} 38. Ka2 $2 (38. Qe1) 38... c3 39. Rb4 Bd5+ 40. Kb1 Qd3+ 41. Qc2 {[#]} Ba2+ $1 {[%mdl 576] Pin. Black mates.} 42. Kc1 (42. Kxa2 Qxc2+) 42... Qe3+ 43. Kd1 Bd5 44. Qc1 Qd3+ 45. Ke1 Bf3 {[%csl Gf3][%cal Rd3e2]} 46. Kf2 Qd2+ {Accuracy: White = 38%, Black = 56%.} (46... Qe2+ $142 47. Kg3 Bc6 48. Qf4 c2 49. Rb3 Qe1+ 50. Kh3 c1=Q 51. Qxc1 Qxc1 52. Kh4 Qf4 53. Rc3 g5+ 54. Kh5 Qf6 55. Rxc6 bxc6 56. h3 Qg6#) 0-1

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.16"]
[Round "1"]
[White "Kiewra, Keaton"]
[Black "Ali Marandi, Cemil Can"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2364"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,69,31,35,43,54,37,42,40,30,29,47,55,45,52,103,68,110,86,82,0,0,-7,108,99,116,112,87,88,108,106,110,96,226,99,234,242,237,242,220,178,566,547,2529,2480,2242,2156,3171,3187,3172,2352,2547,2729,29990,29990]} 1. Nf3 d5 2. e3 Nf6 3. c4 c6 4. Nc3 e6 5. b3 Nbd7 6. Bb2 Bd6 7. Qc2 O-O 8. Be2 a6 9. d4 {[%cal Bd2d4,Bd4e5][%mdl 32]} e5 10. Nxd5 {D45: Semi-Slav: 5 e3} cxd5 (10... Nxd5 11. cxd5 Qa5+ 12. Bc3 Bb4 13. Bxb4 Qxb4+ 14. Qd2 Qxd2+ 15. Kxd2 exd4 16. Nxd4 cxd5 17. Rhc1 Nf6 {½-½ (36) Giri,A (2768)-Mamedyarov,S (2764) Tashkent 2014}) 11. dxe5 Bb4+ 12. Kf1 {White is slightly better.} Ne4 13. a3 Be7 14. cxd5 Ndc5 15. b4 {[%mdl 1024] White has compensation.} Bf5 $146 (15... Qxd5 $14 16. Bc4 (16. bxc5 Bf5 $14) 16... Qd7) ({Predecessor:} 15... Qxd5 16. Bc4 Qc6 17. bxc5 Nxc5 {Koo,O (2347)-Landero Luna,V (2299) ICCF email 2016}) 16. Qd1 $16 Nd7 17. Qd4 Rc8 18. g4 (18. d6 $16) 18... Bg6 $11 19. h4 h6 (19... f6 $1 $11 {remains equal.} 20. d6 fxe5 21. Qd5+ (21. dxe7 Qxe7 22. Qd5+ Kh8 $15) 21... Kh8) 20. d6 $16 Nxd6 21. exd6 $40 {[%csl Gb2][%cal Rd4g7][%mdl 128] Black is in trouble.} Bf6 22. Qd2 Rc2 23. Bxf6 Nxf6 24. Qd4 {Threatens to win with g5.} Ne4 {[#]} (24... Rc6 $16 {was necessary.}) 25. Rd1 (25. h5 $1 $18 {[%cal Rh5g6] is the precise move to win.} Bh7 26. g5 Qxd6 {[#]} 27. g6 $1 {[%mdl 512]} fxg6 28. Qxe4 {[%mdl 64] Double Attack}) 25... Re8 (25... Rc6 $16 {might work better.}) 26. h5 $18 Bh7 {[#]} 27. g5 $1 hxg5 (27... Nxg5 28. Nxg5) 28. h6 gxh6 $2 (28... Qf6 29. hxg7 Qf5) 29. Rxh6 Qd7 {[#]} 30. Rxh7 $1 {[%mdl 576] Decoy} Kxh7 {[#]} 31. Nxg5+ $1 {[%mdl 576] Double Attack} Kh6 (31... Nxg5 32. Qh4+) 32. Nxe4 {White threatens Qf6+ and mate.} Qh3+ 33. Ke1 {Qf6+ would kill now.} Qh1+ 34. Bf1 {Threatening mate with Qf6+.} Rxe4 35. Qh8+ {Accuracy: White = 81%, Black = 26%.} 1-0

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.17"]
[Round "2"]
[White "Ali Marandi, Cemil Can"]
[Black "Patel, Advait"]
[Result "1/2-1/2"]
[ECO "E73"]
[WhiteElo "2552"]
[BlackElo "2467"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,90,40,34,123,108,195,0,0,0,0,-66,-66,-61,-27,-72,-71,-63,-67,-86,-58,-99,-102,-114,-100,-123,-118,-122,-99,-156,-149,-143,-133,-197,-185,-171,-182,-222,-236,-201,-205,-264,-258,-253,-254,-230,-254,-268,-279,-278,-272,-267,-231,-244,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Be3 e5 7. d5 Na6 8. g4 {E73: King's Indian: Averbakh Variation without 6...c5} Nc5 9. f3 h5 10. g5 Nh7 11. h4 f6 12. gxf6 {LiveBook: 10 Games} Rxf6 $146 (12... Bxf6 $14 13. Bf2 b6) ({Predecessor:} 12... Bxf6 13. Bf2 Be7 14. Kd2 Rf4 15. Qe1 a5 {½-½ (30) L'Ami,E (2634)-Amin,B (2693) Wijk aan Zee 2018}) 13. Qd2 $16 Rf4 (13... Qe8 $16) 14. O-O-O $2 (14. Bxf4 $18 exf4 15. O-O-O (15. Qxf4 Be5 $16)) 14... Rxh4 $11 15. Rxh4 Qxh4 16. Bxc5 (16. b4 $11 Na6 17. c5) 16... dxc5 $15 17. d6 cxd6 18. Qd5+ Kh8 19. Qxd6 Qg5+ 20. Kc2 Bf8 21. Qc7 {[#]} Qe7 $1 $36 {[%cal Re7c7][%mdl 2048] Black is really pushing.} 22. Qa5 Nf6 23. Nd5 Nxd5 24. cxd5 Qd6 25. Bf1 ({Better is} 25. Qc3) 25... Bh6 $17 26. Qc3 Kh7 27. Qb3 (27. a4 $17 {keeps fighting.}) 27... a6 $19 28. a4 Rb8 29. Bh3 Bxh3 30. Nxh3 Qd7 31. Nf2 {[#]} c4 $1 {[%mdl 512]} 32. Qb6 (32. Qxc4 Rc8) 32... Qxa4+ 33. Kb1 {Qc7+ is the strong threat.} Qd7 34. Rg1 Rg8 35. Nd1 Rg7 36. Nc3 Qh3 37. Qf6 Bf4 $2 (37... b5 $19 38. d6 Qh2) 38. d6 $1 $11 {The position is equal.} Qxf3 39. Ka1 {Black must now prevent d7!} Qf2 {[#]} 40. Rxg6 $3 {[%mdl 576] Decoy} Rxg6 41. Qf7+ Rg7 42. Qf5+ $1 Kh6 43. Qf6+ $1 Kh7 44. Qf5+ $1 Kh6 45. Qf6+ $1 Kh7 {Accuracy: White = 56%, Black = 72%.} 1/2-1/2

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.17"]
[Round "2"]
[White "Shtembuliak, Evgeny"]
[Black "Boros, Denes"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "2487"]
[BlackElo "2442"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,79,21,10,35,37,46,39,81,66,83,85,80,90,80,75,89,76,109,110,102,89,114,112,137,139,135,126,129,118,131,127,137,124,108,0,132,123,193,193,308,310,321,315,311,301,349,331,344,344,362,332,332,336,497,493,497,427,486,492,562,562,562,558,558,556,647,637,608,592]} 1. c4 c6 2. d4 d5 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Bf4 a6 7. Ne5 Bd7 {D13: Slav Defence: Exchange variation without ...Bf5} (7... e6 8. Nxc6 bxc6 9. e3 Bd6 10. Bxd6 Qxd6 11. Be2 Rb8 12. Na4 Qb4+ 13. Kf1 Qd6 14. Rc1 e5 15. b3 {1-0 (46) Zherebukh,Y (2633)-Jumabayev,R (2621) Saint Louis 2018}) 8. e3 g6 9. Be2 Bg7 {White is slightly better.} 10. O-O O-O 11. Nxd7 Qxd7 12. Na4 Qd8 13. Nc5 $146 ({Predecessor:} 13. Rc1 Ne4 14. f3 Nd6 15. Nc5 Na5 16. b3 Re8 17. Re1 Ra7 18. Bf1 {1-0 (40) Djokic,N (2324)-Lalev,D (2370) Valjevo 2015}) 13... Ra7 14. Qa4 b5 15. Qc2 Qb6 16. Rfc1 {[%cal Bf1c1,Bc1c7,Bc7d7][%mdl 32]} Raa8 17. a4 Na5 18. Nd3 {[#] aiming for Bc7.} Qb7 19. Qc7 Qxc7 20. Rxc7 (20. Bxc7 Nb3 $17) 20... e6 21. Nc5 Ne8 22. Rd7 Nf6 23. Rc7 Ne8 $1 24. Re7 $36 {[%mdl 2048] White is on the roll.} Nc6 (24... Nf6 $16 25. h3 (25. axb5 axb5 26. Bxb5 Nh5 $16) 25... Nc4) 25. Rb7 $18 e5 (25... Nf6 $142 26. Rb6 (26. axb5 axb5 27. Rxa8 Rxa8 $16) 26... Na5 27. axb5 axb5) 26. dxe5 ({Resist} 26. axb5 Nxd4 27. exd4 exf4 $18) 26... Nxe5 27. axb5 Nd6 28. Re7 ({Weaker is} 28. bxa6 Nxb7 29. Nxb7 Rfc8 $14) 28... Nec4 29. Bxd6 {[#] Hoping for Bxc4.} ({Less strong is} 29. Rxa6 Nxb5 30. Rd7 Bxb2 $18) 29... Nxd6 30. Rxa6 Rfc8 31. Rxa8 Rxa8 32. b6 {[%cal Bb5b6,Bb6b7][%mdl 32]} Ra1+ (32... Ra2 $142 33. Rd7 Bf8) 33. Bf1 {White is clearly winning.} Rb1 34. b3 Bf8 35. Rd7 Ne4 36. Nxe4 dxe4 37. b7 Rxb3 38. g3 Kg7 39. Ba6 Bc5 40. Rd8 {Accuracy: White = 80%, Black = 48%.} 1-0

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.17"]
[Round "2"]
[White "Kevlishvili, Robby"]
[Black "Niemann, Hans"]
[Result "1-0"]
[ECO "C67"]
[WhiteElo "2451"]
[BlackElo "2439"]
[Annotator "TA"]
[PlyCount "145"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,145,21,21,18,20,13,4,3,26,7,7,7,12,5,10,8,22,23,23,20,23,25,27,0,0,0,12,6,15,8,14,14,16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,33,37,49,57,60,48,58,60,53,44,92,41,104,54,63,55,64,41,41,49,64,64,257,257,250,250,235,228,200,164,644,1399,1217,1008,29953,29956,29949,12821,6447,5585,5509,5423,5513,5430,5097,5081,1143,569,493,469,1935,4242,12825,5097,4601,4586,12816,6087,6977,5081,4133,2415,29978,29979,29979,29980,29989,29990,29996,29997]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Nxe5 7. Rxe5+ Be7 8. Bf1 O-O 9. d4 Bf6 10. Re1 Nf5 {C67: Ruy Lopez: Berlin Defence: 4 0-0 Nxe4} 11. d5 Re8 12. Rxe8+ Qxe8 {LiveBook: 3 Games. The position is equal.} 13. Qd3 d6 14. Nd2 {[%cal Bb1d2,Bd2e4,Be4g5][%mdl 32] [#]} Bd7 $146 ({Predecessor:} 14... Bg5 15. Nf3 Bxc1 16. Rxc1 Bd7 17. Re1 Qd8 18. Qc4 {1-0 (31) Carlsen,M (2843)-Aronian,L (2764) Stavanger 2018}) 15. Ne4 Be5 16. c3 c6 17. dxc6 Bxc6 18. Ng5 g6 19. Bd2 h6 20. Nf3 Bg7 21. Re1 Qd7 22. g3 Re8 23. Bg2 Rxe1+ 24. Nxe1 Qe6 25. b3 Qe5 26. Bxc6 bxc6 27. Nf3 Qe6 28. Ne1 d5 29. Nc2 c5 30. Ne3 Nxe3 31. Qxe3 Qf5 32. Qxc5 Qb1+ {[%mdl 64] Double Attack} 33. Kg2 Qe4+ 34. Kf1 Qd3+ 35. Ke1 Qb1+ 36. Ke2 Qxa2 37. Qc8+ Kh7 38. Qb7 {[%mdl 64] Double Attack} Kg8 39. Qa8+ Bf8 40. Qxd5 a5 {Hoping for ...a4.} 41. Qb5 h5 42. Qa4 Qc2 43. Qxa5 {Strongly threatening Qb6.} Qxb3 44. Qa6 (44. Qd8 $16) 44... Bg7 ({Black should try} 44... Qb2 $14) 45. h4 Qb2 46. Qc8+ Kh7 47. Qc4 Kg8 48. Qd3 Bh6 49. c4 {[%cal Bc3c4,Bc4c5,Bc5c6,Bc6c7][%mdl 32]} Bxd2 $2 (49... Qa2 $14) 50. Qxd2 $14 {[%mdl 4096] Endgame KQ-KQ} Qb3 51. Qd3 Qb4 52. Kf3 Qb6 53. Qd5 Kf8 $2 (53... Qb3+ 54. Kg2 Qa2 55. Qd8+ Kg7) 54. c5 $18 Qf6+ 55. Kg2 Ke7 56. Qb7+ Kd8 {[#]} 57. Qb6+ $1 Ke7 58. c6 Qd6 {[#]} 59. c7 $1 {[%mdl 512]} Qd5+ {[#]} 60. Kh2 $1 Qf5 61. Qd4 {White threatens Qd8+ and mate.} Qc8 62. Qe5+ (62. Qc4 $142 f6 63. Qc6) 62... Kd7 63. Qd5+ Ke7 (63... Kxc7 $142 64. Qxf7+ {[%mdl 64] Double Attack} Qd7 65. Qxg6 Qd1 66. Qf7+ Kd6) 64. Qc6 Kf8 65. Qd6+ (65. Kg1 $142 Ke7 66. Kf1) 65... Ke8 66. Kg1 Qa8 67. Kf1 (67. Qb6 $142 Qc8 68. Qc6+ Kf8 69. Kg2) 67... Qa1+ 68. Ke2 {[%cal Rc7c8]} Qa2+ 69. Kf3 {[%cal Rc7c8]} Qb3+ 70. Kf4 {[%cal Rc7c8] White mates.} Qc4+ 71. Kg5 {[%csl Gc7][%cal Rd6d8]} f6+ 72. Kh6 Qc1+ 73. Kg7 {Accuracy: White = 67%, Black = 42%.} 1-0

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.17"]
[Round "2"]
[White "Gurevich, Dmitry"]
[Black "Bivol, Alina"]
[Result "1/2-1/2"]
[ECO "E90"]
[WhiteElo "2393"]
[BlackElo "2403"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,101,39,31,20,23,22,22,6,7,-13,0,-8,-7,-11,28,30,25,18,23,15,14,13,44,45,46,34,78,71,80,84,97,97,139,125,138,130,125,105,156,158,188,164,206,178,207,141,153,144,144,159,172,149,137,55,49,56,50,60,60,53,84,47,44,41,57,3,2,3,6,12,12,0,0,0,0,0,35,0,0,0,38,33,25,15,15,1,8,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 Bg4 6. Be2 O-O 7. Be3 Nfd7 8. Rc1 e5 {LiveBook: 167 Games} 9. dxe5 {E91: King's Indian: Classical: 6 Be2, unusual replies including 6...c5 and 6...Bg4} (9. d5 a5 10. h3 Bxf3 11. Bxf3 f5 12. h4 f4 13. Bd2 Nc5 14. Qe2 h5 15. g4 fxg3 16. fxg3 Nba6 17. O-O Qd7 {0-1 (55) Steingrimsson,H (2573)-Kovalenko,I (2646) Batumi 2018}) 9... dxe5 10. O-O Bxf3 11. Bxf3 Nc6 12. Ne2 Qe7 13. c5 Rfd8 14. Nc3 $146 {With the idea Nd5.} ({Predecessor:} 14. Qb3 Rab8 {½-½ (38) Pacheco,M (2320)-Zilberman,N (2338) Mallorca 2004}) 14... Nd4 (14... Nf6 $5 {[%cal Rd8d1]} 15. Qb3 Rab8 $11) 15. Nd5 Qf8 $1 16. Bxd4 exd4 17. c6 $36 {[%mdl 2048] White fights for an advantage.} bxc6 18. Rxc6 Be5 19. g3 ({But not} 19. Nxc7 Rac8 $15) 19... Rab8 20. b3 ({Don't play} 20. Nxc7 Rxb2 21. Nd5 Nb6 $15) 20... Rb7 {[#]} 21. Qd2 $1 Nb8 22. Rc4 c6 {[#]} 23. Nb4 $1 Rb6 24. Bg2 Bd6 {[%cal Rb6b4]} 25. Nd3 Be7 26. Rfc1 f6 (26... Ba3 $142) 27. Bh3 Qe8 28. b4 Bf8 29. Nc5 d3 30. Nxd3 Bxb4 31. Rxb4 Rxd3 32. Qxd3 Rxb4 33. Qd6 Rxe4 34. Rb1 ({White should try} 34. Qxf6 $16 Qe5 35. Qd8+ Qe8 36. Qd3) 34... Re1+ $14 35. Rxe1 Qxe1+ 36. Bf1 Qe5 37. Qd8+ {[%mdl 1024] White has compensation.} Kg7 38. Qc8 a5 39. Qb7+ Kh6 40. h4 (40. Qa7 $14) 40... Qd6 $11 41. Qa7 Nd7 42. Qxa5 {And now Qd8 would win.} Ne5 43. Qc3 Qd5 44. Qe3+ Kg7 45. Qa7+ Kh6 46. Qe3+ (46. Be2 $5 {[%cal Ra7e7]}) 46... Kg7 47. Qa7+ Kh6 48. Be2 Qd6 49. a4 {aiming for Qe3+.} c5 $1 50. Qa6 Qd2 51. Qxf6 {Accuracy: White = 54%, Black = 62%.} 1/2-1/2

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.17"]
[Round "2"]
[White "Kiewra, Keaton"]
[Black "Balakrishnan, Praveen"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "2364"]
[BlackElo "2409"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,66,18,20,-35,-17,-22,8,-41,-44,-88,-76,-97,-70,-119,-119,-120,-120,-120,-115,-108,-124,-146,-146,-136,-137,-155,-155,-164,-158,-163,-127,-155,-154,-187,-192,-188,-182,-254,-193,-247,-253,-239,-269,-416,-416]} 1. Nf3 d5 2. c4 e6 3. g3 Nf6 {[%cal Bg8f6,Bf6e4,Be4d2][%mdl 32]} 4. d4 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O Nbd7 8. Qc2 {E11: Bogo-Indian} (8. Nc3 c6 9. Bf4 dxc4 10. e4 Re8 11. a4 b6 12. d5 exd5 13. exd5 Bb7 14. a5 bxa5 15. d6 Bf8 16. Nd2 Nd5 17. Nxd5 cxd5 18. Nxc4 dxc4 19. Bxb7 {½-½ (42) Nakamura,H (2777)-Karjakin,S (2773) Saint Louis 2018}) 8... Ne4 9. Nc3 Nxd2 10. Nxd2 c6 11. e4 dxc4 12. Nxc4 Nb6 {LiveBook: 15 Games} 13. Ne2 (13. Nxb6 $11 Qxb6 14. Ne2) 13... Nxc4 $15 14. Qxc4 Qb6 (14... e5 $5) 15. Rab1 {[#]} e5 $146 ({Predecessor:} 15... a5) 16. dxe5 Be6 17. Qa4 Rfd8 {[%mdl 1024] Black has strong compensation.} 18. Nf4 Rd4 19. b4 Bc4 $1 {[%cal Rc4f1]} 20. Rfd1 Rad8 {[%cal Ba8d8,Bd8d4,Bd4d1][%mdl 32] aiming for ...Qa6.} 21. Rxd4 Rxd4 22. Qa5 {[#]} Bxb4 $1 {[%mdl 512]} 23. Qxb6 (23. Qxb4 Qxb4) 23... axb6 24. Rxb4 {Strongly threatening Bf1.} Rd1+ 25. Bf1 Bxf1 $19 {[%cal Rf1h3][%mdl 4096] Endgame KRB-KRN} 26. f3 b5 {[%cal Bb6b5,Bb5b4][%mdl 32]} 27. Kf2 Bc4 28. a4 {[#]} c5 $1 {[%cal Rc5b4]} 29. Rb2 b4 ({Don't do} 29... bxa4 30. Rxb7 h6 31. Ra7 $17) 30. Ng2 (30. Rc2 {keeps fighting.} b3 31. Rxc4) 30... Rf1+ 31. Ke3 g5 32. f4 h6 33. a5 (33. Kd2 {was called for.} Rf2+ 34. Kc1) 33... Ba6 {Accuracy: White = 58%, Black = 98%.} 0-1

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.17"]
[Round "3"]
[White "Patel, Advait"]
[Black "Shtembuliak, Evgeny"]
[Result "0-1"]
[ECO "C11"]
[WhiteElo "2467"]
[BlackElo "2487"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,68,25,12,22,42,0,45,-9,0,0,0,0,33,-22,-18,-6,0,-63,-49,-145,-120,-157,-160,-166,-155,-153,-152,-141,-113,-189,-178,-193,-185,-186,-183,-301,-297,-306,-282,-313,-293,-337,-351,-825,-821,-808,-789,-812,-797]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Bxf6 gxf6 7. Qd2 b6 {C13: French: Classical System: 4 Bg5 Be7, Alekhine-Chatard Attack} 8. O-O-O Bb7 9. Nc3 c6 10. f4 f5 11. Nf3 Nd7 {LiveBook: 4 Games} 12. Be2 $146 ({Predecessor:} 12. Bd3 Qc7 13. Rhe1 O-O-O 14. g3 Bf6 15. Qe2 {½-½ (41) Ponkratov,P (2622)-Goryachkina,A (2505) Yaroslavl 2018}) 12... b5 13. Rhe1 b4 14. Nb1 (14. Na4 $14) 14... Qc7 15. Ne5 Nxe5 16. dxe5 Rg8 17. Bf3 ({White should play} 17. g3 $14) 17... c5 $11 18. Qe2 {[#] aiming for Qb5+.} c4 19. Bxb7 (19. g4 $11) 19... Qxb7 $15 20. Qxc4 (20. g3 $15) 20... Rc8 21. Qd3 {With the idea g3.} Rxg2 22. Rd2 Rd8 23. Qh3 Rdxd2 24. Nxd2 Qd5 $40 {[%mdl 128] [#] Black has strong attack.} 25. Rd1 (25. Ne4 $1 $17 {[%mdl 512]} Rg4 (25... fxe4 26. Qxg2) 26. Nf6+ Bxf6 27. exf6) 25... Bc5 $19 26. c4 bxc3 $1 27. Qxc3 Qd4 28. Qf3 (28. Qxd4 {keeps fighting.} Bxd4 29. Nc4) 28... Rf2 ({Resist} 28... Rxh2 29. Qa8+ Ke7 30. a3 $19) 29. Qa8+ Ke7 {And now ...Bb4 would win.} 30. Qb8 Qd5 (30... Rxh2 31. Ne4 $19) 31. Kb1 {intending Qc7+.} Qd3+ ({Less strong is} 31... Rxf4 32. Rc1 $17) 32. Ka1 $2 (32. Kc1 Be3 {[%mdl 64] Double Attack} 33. Qb4+ Ke8 34. Qb8+ Qd8 35. Qb4) 32... Rxd2 {[%cal Rd2d1] Black is clearly winning.} (32... Qd7 $2 33. a3 $19) 33. Qc7+ Ke8 {[%cal Rd2d1]} 34. Qc8+ Qd8 $1 {Accuracy: White = 25%, Black = 71%.} 0-1

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.17"]
[Round "3"]
[White "Boros, Denes"]
[Black "Kevlishvili, Robby"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2442"]
[BlackElo "2451"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,54,8,70,62,67,68,79,31,51,0,104,85,148,142,152,152,142,145,151,154,147,141,150,0,0,0,158]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 Nbd7 8. Bg5 Nc5 9. Qe2 Be7 10. f4 h6 11. Bxf6 Bxf6 12. O-O-O Qc7 13. Rhe1 {B86: Sicilian Scheveningen/Najdorf: 6 Bc4, without early ...b5} Bd7 14. Kb1 O-O 15. g4 b5 {LiveBook: 3 Games} (15... Qb6 $11 16. e5 dxe5 17. fxe5 Bh4) (15... Qb6 16. e5 dxe5 17. fxe5 Bh4 18. Rg1 Bc6 {½-½ (18) Nisipeanu,L (2681)-Sutovsky,E (2657) Wijk aan Zee 2010}) 16. g5 $1 $14 {[%cal Rg5f6]} hxg5 17. e5 dxe5 18. fxe5 Be7 {[#]} 19. Qh5 (19. h4 $1 $14 {[%mdl 512]} b4 (19... gxh4 20. Qh5) 20. Ne4 Nxe4 21. Qxe4 gxh4 22. Rg1) 19... g6 (19... Rfd8 $11) 20. Qh6 $16 Rfd8 {[#]} (20... Nxb3 $142 21. axb3 Rfd8) 21. Nd5 $146 {[%cal Rd5e7][%mdl 512]} exd5 22. Bxd5 Be6 23. Nxe6 Nxe6 24. Bxe6 fxe6 25. Qxg6+ Kh8 {[#] Hoping for ...Rxd1+.} 26. Qh6+ ({Only move:} 26. h4 $1 $16 {[%cal Rh4g5]} Qc6 27. hxg5 Rxd1+ 28. Rxd1) 26... Kg8 $11 {...Rxd1+ is the strong threat.} 27. Qg6+ $2 (27. Rxd8+ $11 Rxd8 28. Qg6+ (28. Qxe6+ Kg7 $17) 28... Kh8 29. Qh6+ Kg8 30. Qg6+ (30. Qxe6+ Kg7 $17) 30... Kh8 31. Qh6+ Kg8) 27... Kh8 {Accuracy: White = 69%, Black = 41%.} 1/2-1/2

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.17"]
[Round "3"]
[White "Niemann, Hans"]
[Black "Gurevich, Dmitry"]
[Result "1-0"]
[ECO "A57"]
[WhiteElo "2439"]
[BlackElo "2393"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,51,40,54,51,51,52,29,43,35,34,43,39,37,96,58,74,43,118,118,107,109,224,219,200,189,226,136,143,129,83,80,443,402,489,481]} 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. e3 axb5 6. Bxb5 Qa5+ 7. Nc3 Bb7 8. Bd2 Qb6 9. a4 {A57: Benko/Volga Gambit} Nxd5 10. Nf3 {[%cal Bg1f3,Bf3d2,Bd2b3,Bb3c5][%mdl 32] LiveBook: 26 Games} Nb4 (10... Qg6 11. O-O e6 12. a5 Nc7 13. e4 Nxb5 14. Nxb5 Na6 15. Re1 f6 16. Nh4 Qf7 17. Qb3 {1-0 (27) Adhiban,B (2650)-Ramirez Alvarez,A (2568) Reykjavik 2018}) 11. O-O {White is slightly better.} g6 12. e4 Bg7 $1 13. Bg5 $146 ({Predecessor:} 13. Bf4 N8c6 14. Qd2 O-O 15. Qxd7 e5 16. Bg5 h6 17. Be7 Rfe8 18. Bd6 Rac8 19. Bc4 Red8 20. Qxf7+ Kh8 21. a5 {1-0 (21) Weimer,H-Stromer,A Germany 1986}) 13... h6 14. Bh4 Qe6 15. Nd2 Ba6 ({Black should play} 15... N8c6 $14) 16. Nb3 Bxb5 17. Nxb5 O-O (17... Qc6 $14) 18. Nxc5 Qe5 19. Rc1 {And now f4 would win.} g5 {[#]} (19... d6 $16) 20. Bg3 $1 $18 {[%cal Rg3e5]} Qxb2 {[#]} 21. f4 $1 {[%cal Rf4g5,Bf2f4,Bf4e5,Be5e6][%mdl 32]} d6 22. Rf2 Qf6 23. e5 $1 $36 {[%cal Re5f6][%mdl 2048] White has strong initiative.} dxe5 24. fxe5 Qc6 $2 {[%mdl 8192] [#]} (24... Qg6 $16 {is a better chance.}) 25. e6 $1 {[%mdl 512]} Qd5 (25... fxe6 26. Rxf8+) 26. Nc7 {Accuracy: White = 63%, Black = 33%.} 1-0

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.17"]
[Round "3"]
[White "Balakrishnan, Praveen"]
[Black "Ali Marandi, Cemil Can"]
[Result "1/2-1/2"]
[ECO "C11"]
[WhiteElo "2409"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,58,53,60,-38,-38,-38,-30,-34,-32,-35,-32,-24,-43,-66,-6,-6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 {[%cal Be2e4,Be4e5][%mdl 32]} e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 Qb6 8. Na4 Qa5+ 9. c3 b6 10. Bd2 c4 11. b4 Nxb4 {C11: French: Classical System: 4 e5 and 4 Bg5 dxe4} (11... Qa6 12. Be2 Be7 13. O-O f5 14. Qc2 O-O 15. Kh1 Qb7 16. Rg1 Rf7 17. g4 b5 18. gxf5 Rxf5 19. Nc5 Nxc5 20. bxc5 {0-1 (57) Karjakin,S (2773)-Duda,J (2737) chess.com INT 2018}) 12. cxb4 Bxb4 13. Qc2 Bxd2+ 14. Nxd2 b5 15. Nc3 b4 {[#] LiveBook: 25 Games} 16. Bxc4 $146 ({White should play} 16. Ne2 $14) ({Predecessor:} 16. Nd1 f6 17. Nf3 fxe5 18. fxe5 Bb7 19. a3 {1-0 (34) Kokarev,D (2634)-Savchenko,B (2613) Khanty-Mansiysk 2016}) 16... bxc3 $15 17. Nb3 Qb6 18. Bd3 Ba6 19. O-O Rc8 20. Bxa6 Qxa6 21. f5 exf5 (21... O-O $15) 22. Qxf5 $11 {The position is equal.} Qe6 23. Qxe6+ fxe6 24. Rac1 Rf8 25. Rfd1 Rf4 26. Rd3 {[#]} a5 $1 {[%cal Ba7a5,Ba5a4][%mdl 544]} 27. Rdxc3 (27. Nxa5 Ra8) 27... Rxc3 28. Rxc3 a4 29. Na5 Rxd4 1/2-1/2

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.17"]
[Round "3"]
[White "Bivol, Alina"]
[Black "Kiewra, Keaton"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2403"]
[BlackElo "2364"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,103,22,33,-3,5,-39,-40,-91,0,-219,-116,-110,-109,-99,-116,-103,-103,-112,-104,-111,-108,-116,-84,-91,-76,-89,-102,-122,-23,-18,-33,-10,0,-8,0,-192,-4,-76,-75,-51,-62,-53,-50,-112,-125,-130,0,0,0,-93,0,-437,-453,-452,-439,-459,-452,-422,-408,-429,-208,-216,-231,-203,-197,-252,-116,-175,-54,-116,-60,-214,685,641,801,801,793,793,29992,29993,29997,29998]} 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. c4 c6 6. Nbd2 O-O 7. O-O Bf5 8. b3 a5 9. Bb2 Nbd7 {D78: Fianchetto Grünfeld: 6 0-0 c6} 10. e3 a4 11. Qe2 Ne4 12. Nxe4 Bxe4 {LiveBook: 5 Games} 13. Rfd1 $146 ({Predecessor:} 13. cxd5 cxd5 14. Qb5 Ra5 15. Qxb7 Nc5 16. Qb4 Nd3 17. Qd2 {0-1 (69) So,W (2810)-Ding,L (2777) Tbilisi 2017}) 13... Qa5 14. Bh3 dxc4 15. Bxd7 (15. bxc4 $15 a3 16. Bc1) 15... c3 (15... a3 $17 16. Bxa3 Bd3) 16. Ba3 $2 (16. Bxc3 $1 $11 {and White is okay.} Qxc3 17. Rac1) 16... c2 (16... axb3 $19 17. axb3 Qd5) 17. Rdc1 $17 Qh5 $1 {[%mdl 1024] Black has strong compensation.} 18. g4 Qh3 19. Ne1 {f3 is the strong threat.} Rfd8 $1 {[%cal Rd8d7]} 20. f3 Bd5 21. Bxc6 Bxc6 22. Qg2 Qh4 23. Nxc2 e5 {[%cal Re5d4]} 24. Bc5 Qf6 25. Rf1 Qe6 (25... axb3 $17 26. axb3 Rxa1 27. Nxa1 Qe6 28. dxe5 Bxe5) 26. dxe5 $1 $11 axb3 27. axb3 Qxb3 {aiming for ...Bb5.} 28. Bd4 Ba4 29. Na3 $2 {[#]} (29. Rf2 $11) 29... b5 $2 (29... Bxe5 $1 $19 {[%mdl 512]} 30. Rfb1 (30. Bxe5 Qxe3+) 30... Qd3 31. Bxe5 Qxe3+ {[%mdl 64] Double Attack} 32. Qf2 Qxe5) 30. Rfb1 (30. f4 $11 {remains equal.}) 30... Qd3 $1 $17 31. Qf1 Rxd4 32. exd4 Qxd4+ 33. Qf2 (33. Kh1 $1 $15) 33... Bxe5 {White must now prevent ...Qd5.} 34. Ra2 Qd3 {And now ...Bd4 would win.} 35. Qe2 $1 {[%cal Re2d3]} Qd4+ 36. Qf2 {[#]} Bb3 $1 {[%mdl 512]} 37. Rxb3 $4 {[%mdl 8192]} (37. Nxb5 $11 Rxa2 38. Qxd4 Bxd4+ 39. Nxd4) 37... Qd1+ $19 {[%mdl 64] Double Attack} 38. Kg2 Qxb3 39. Re2 Bc3 40. Nc2 b4 41. h4 Qc4 (41... Qd5 $142 42. Qe3 Qd1) 42. Re4 Qb5 43. Nd4 Qd3 44. h5 (44. Qe2 $142 Qxe2+ 45. Nxe2) 44... Qd1 (44... gxh5 $19 45. Qe2 Qxe2+ 46. Nxe2 Ra2) 45. Ne2 (45. Qe3 $17 {was called for.} Qd2+ 46. Qxd2 Bxd2 47. Kf2) 45... Qd2 ({Black should play} 45... Qd6 $19 {Strongly threatening ...f5.} 46. Qe3 Qd2) 46. Qc5 (46. Nxc3 $15 Qxc3 47. h6) 46... Rd8 (46... gxh5 $17 47. Kh3 Qe1) 47. Qc4 $2 (47. Kh3 $15) 47... Qd3 $4 {[%mdl 8192] [#]} (47... gxh5 $19 48. Rf4 hxg4 49. Qxf7+ Kh8) 48. Re8+ $1 $18 {[%mdl 512]} Kg7 {[#]} (48... Rxe8 49. Qxd3) 49. h6+ $1 {[%mdl 512]} Kxh6 50. Qxf7 {g5+! would kill now.} Bf6 51. Qxf6 Rd6 52. g5+ {Accuracy: White = 38%, Black = 29%.} 1-0

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.18"]
[Round "4"]
[White "Ali Marandi, Cemil Can"]
[Black "Shtembuliak, Evgeny"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "2552"]
[BlackElo "2487"]
[Annotator "RC"]
[PlyCount "32"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:35]} e6 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:23]} d5 {[%emt 0:00:00]} 3. exd5 {[%emt 0:00:30]} exd5 {[%emt 0:00:00]} 4. c4 {[%emt 0:00:10]} dxc4 {[%emt 0:04:32]} 5. Bxc4 {[%emt 0:01:49]} Nf6 {[%emt 0:01:36]} 6. Nf3 {[%emt 0:03:19]} Bd6 {[%emt 0:00:10]} 7. O-O {[%emt 0:01:41]} O-O {[%emt 0:00:17]} 8. Nc3 {[%emt 0:02:04]} Nc6 {[%emt 0:03:30]} 9. Bg5 {[%emt 0:15:18]} h6 {[%emt 0:05:24]} 10. Bh4 {[%emt 0:03:13]} Bg4 {[%emt 0:06:12]} 11. h3 {[%emt 0:05:25]} Bxf3 {[%emt 0:04:03]} 12. Qxf3 {[%emt 0:02:42]} Nxd4 {[%emt 0:00:23]} 13. Qxb7 {[%emt 0:00:07]} Rb8 {[%emt 0:00:14]} 14. Qxa7 {[%emt 0:00:31]} Ra8 {[%emt 0:00:10]} 15. Qb7 {[%emt 0:00:06]} Rb8 {[%emt 0:00:08]} 16. Qa7 {[%emt 0:00:06]} Ra8 {[%emt 0:00:05]} 1/2-1/2

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.18"]
[Round "4"]
[White "Kevlishvili, Robby"]
[Black "Patel, Advait"]
[Result "1/2-1/2"]
[ECO "C78"]
[WhiteElo "2451"]
[BlackElo "2467"]
[Annotator "TA"]
[PlyCount "47"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,47,30,54,13,32,0,0,0,7,8,8,0,14,0,0,0,8,6,14,14,26,6,10,0,0,-32,-29,-19,-23,-27,-25,-16]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 {[%cal Bf1b5,Bb5a4,Ba4b3][%mdl 32]} a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bc5 7. c3 d6 8. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} Rb8 9. d4 Bb6 10. a5 {C78: Ruy Lopez: Archangelsk and Möller Defences} Ba7 $1 11. h3 O-O 12. Be3 {The position is equal.} Ra8 13. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1g3][%mdl 32]} h6 14. Re1 Re8 15. Nf1 exd4 16. cxd4 Rxe4 17. Ng3 Re7 {[#]} 18. Qd2 $146 Qf8 19. Rac1 Bd7 $1 20. Nh4 {[#] Strongly threatening Rxc6!} d5 21. Nhf5 Re6 $1 22. Bf4 Rae8 {White must now prevent ...Rxe1+.} 23. Red1 Bb8 24. Ba2 {Accuracy: White = 49%, Black = 81%.} 1/2-1/2

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.18"]
[Round "4"]
[White "Balakrishnan, Praveen"]
[Black "Bivol, Alina"]
[Result "1/2-1/2"]
[ECO "C03"]
[WhiteElo "2409"]
[BlackElo "2403"]
[Annotator "TA"]
[PlyCount "219"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,218,43,41,24,19,42,27,25,31,24,27,28,32,25,21,18,22,47,59,52,53,65,57,61,62,87,85,51,70,107,102,111,99,100,93,176,158,147,150,158,164,149,143,188,184,191,185,175,185,183,188,182,172,195,191,234,239,260,254,356,356,257,356,356,354,341,343,377,385,381,359,366,314,283,215,395,411,1127,962,1287,1148,1920,1845,12784,12784,10883,10883,5095,5112,5112,5112,5112,5112,5112,5112,5112,5112,5377,5202,5112,5112,1423,140,5112,5112,5112,5112,5112,5112,5097,5097,5097,5097,5095,5095,5095,5095,5095,5095,5094,5094,5087,5080,5072,5065,872,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,0,8,0,0,0,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,0,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,0,8,8,8,8,8,8,8]} 1. e4 e6 2. d4 d5 3. Nd2 a6 4. Bd3 c5 5. dxc5 Bxc5 6. Ngf3 Nf6 7. O-O Nc6 8. exd5 exd5 {C07: French Tarrasch: 3...c5, 4 Ngf3 and 4 exd5 Qxd5} 9. Re1+ $146 (9. Nb3 Bb6 10. Re1+ Be6 11. c3 O-O 12. h3 Ne4 13. Be3 Bf5 14. Nbd4 Bg6 15. Nxc6 bxc6 16. Ne5 {1-0 (45) Adams,M (2734)-Gurevich,M (2634) Dresden 2008}) ({Predecessor:} 9. Nb3 Be7 10. h3 O-O 11. c3 Re8 12. Bg5 h6 13. Bh4 {1-0 (55) Ascic,I (2041)-Grguric,D (1841) Sibenik 2007}) 9... Be7 10. h3 O-O {White has an edge.} 11. Nb3 Re8 12. Bg5 h6 13. Bh4 Bd7 14. c3 Qb6 15. Bc2 g5 16. Bg3 Bf8 17. Ne5 Rad8 18. Qd3 {Strongly threatening Nxf7!} Bg7 19. Nxd7 Rxe1+ 20. Rxe1 {White wants to mate with Nxf6+.} Rxd7 21. h4 g4 22. Bf4 Qd8 23. Nc5 Re7 24. Rxe7 Nxe7 (24... Qxe7 $16 25. Qe3 Qxe3 26. Bxe3 Na5) 25. Qe3 d4 26. Qxd4 Qxd4 27. cxd4 Nfd5 28. Be5 $1 Bxe5 29. dxe5 $16 {[%mdl 4096] Endgame KBN-KNN} Nb4 30. Bb3 b6 31. Nd7 b5 32. Nf6+ Kg7 33. Nxg4 Nd3 34. Kf1 Nc6 35. Ke2 $1 {[%cal Re2d3]} Nxb2 36. Kd2 Kg6 (36... h5 {was necessary.}) 37. Kc3 $18 Na4+ 38. Bxa4 $1 bxa4 {KN-KN} 39. Kc4 $1 {[%cal Rc4c5]} Kh5 40. Kc5 Ne7 41. Ne3 $1 Ng6 42. Kd5 Kxh4 43. Ke4 Kg5 44. Nd5 h5 $2 (44... Kg4 45. f4 Kg3) 45. f4+ $1 Kg4 (45... Kh6 $142 46. f5 Nf8) 46. Nf6+ Kg3 47. Nxh5+ Kxg2 48. f5 Ne7 49. e6 fxe6 50. fxe6 Kf2 51. Nf4 Ke1 52. Nd5 Nc8 53. Kd4 Kd2 54. Kc5 Kd3 55. Kb4 Nd6 56. e7 Ne8 57. Kc5 Kc2 58. Nb6 $2 (58. Kc6 $18 Kb1 59. Kd7) 58... a3 $2 {[%mdl 8192]} (58... Kb2 $16) 59. Nc4 Kb1 60. Nxa3+ ({Worse is} 60. Nd6 Nf6 $11) 60... Kxa2 61. Nc4 $1 {[%cal Rc4d6]} Kb3 62. Nd6 Ng7 {[#]} 63. Nf5 $1 {[%mdl 512]} Ne8 {[#]} (63... Nxf5 64. e8=Q) 64. Nd4+ $1 Kc3 65. Nc6 Kd3 66. Kd5 Kc3 {[#]} 67. Ke6 $1 {[%cal Re6f7]} Kc4 68. Kd7 Ng7 69. Nd8 a5 70. Nb7 $2 (70. Ne6 $18 Nh5 71. Ke8 Nf6+ 72. Kf7) 70... a4 $11 {The position is equal.} 71. Nd6+ Kb3 72. Nf5 a3 73. Nxg7 {KN-KP} a2 74. e8=Q a1=Q 75. Qb8+ Kc2 76. Ne6 Qa4+ 77. Kd6 Qa3+ 78. Kc6 Qa4+ 79. Kc7 Qa5+ 80. Kc8 Qa6+ 81. Kd7 Qa4+ 82. Ke7 Qh4+ 83. Kf7 Qh5+ 84. Kg7 Qg4+ 85. Kf6 Qh4+ 86. Ke5 {Nd4+ would kill now.} Qh5+ (86... Qg3+ {seems wilder.} 87. Nf4 Qc3+ 88. Kd6 Qa3+ 89. Ke6 Qb3+) 87. Kd4 Qg4+ 88. Nf4 Qg7+ 89. Ke4 Qh7+ 90. Ke3 Qe7+ 91. Kf3 Qe1 92. Qb5 Qc3+ 93. Kg2 Qg7+ 94. Kf1 Qa1+ 95. Ke2 Qd1+ 96. Ke3 Qe1+ 97. Kf3 Qd1+ 98. Ke4 {Threatening mate with Qa4+.} Qe1+ 99. Kf5 Qc3 100. Qd5 Qc8+ 101. Ke4 {White threatens Qa2+ and mate.} Qe8+ 102. Kf3 Qh8 103. Qd3+ Kb2 104. Qb5+ Ka2 105. Qa4+ Kb1 106. Qb5+ Qb2 107. Qd5 Qc1 108. Qe4+ Ka1 109. Kf2 Qc2+ 110. Qxc2 $2 {[%mdl 8192] Accuracy: White = 76%, Black = 60%.} (110. Qe2) 1/2-1/2

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.18"]
[Round "4"]
[White "Gurevich, Dmitry"]
[Black "Boros, Denes"]
[Result "1-0"]
[ECO "A10"]
[WhiteElo "2393"]
[BlackElo "2442"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,77,15,25,32,38,39,19,61,27,27,13,16,8,12,9,21,0,0,-16,0,0,0,0,-12,-18,0,0,0,0,0,0,0,0,18,25,78,0,74,15,56,57,78,49,66,68,75,34,66,0,0,0,0,0,0,0,371,357,424,440,662,700,839,835,29987,29988]} 1. c4 b6 2. Nc3 e6 3. d4 Bb4 4. e3 Bb7 5. Nge2 f5 6. a3 Bd6 7. d5 Nf6 8. g3 Be5 $146 {A40: Unusual replies to 1 d4} ({Predecessor:} 8... Na6 9. Bg2 Nc5 10. O-O O-O 11. b4 Nce4 12. Nxe4 Nxe4 13. Bb2 Qe7 14. Qd3 exd5 15. cxd5 a5 16. b5 {½-½ (70) Aleksandrov,A (2591)-Gulko,B (2643) Shenyang 2000}) 9. Bg2 Na6 10. Nd4 Nc5 {The position is equal.} 11. O-O O-O 12. Qc2 Qe7 13. Bd2 a5 14. Rad1 Nce4 15. Nxe4 Nxe4 16. Bc1 a4 17. f3 Nc5 18. dxe6 dxe6 19. Bd2 f4 20. gxf4 Bxd4 21. exd4 Nb3 22. Be3 Rad8 23. Rfe1 Qh4 24. d5 $36 {[%mdl 2048] White is more active.} Rde8 (24... exd5 $11 {keeps the balance.} 25. cxd5 Nc5) 25. Bf2 (25. Qf2 $16 Qxf2+ 26. Kxf2) 25... Qf6 (25... Qxf4 $11 26. dxe6 (26. Rxe6 Rxe6 27. dxe6 Bxf3 $11) 26... Qg5) 26. f5 (26. Qc3 $16) 26... e5 27. Qe4 Bc8 28. f4 {[%cal Rf4e5]} Bxf5 29. fxe5 {[%cal Bf4e5,Be5e6,Be6e7][%mdl 32]} Qg6 30. Qe3 {Threatens to win with d6.} Bc2 31. Bg3 (31. Rd4 $14) 31... Bxd1 $11 32. Rxd1 Qc2 33. Re1 Qxc4 34. e6 Kh8 $2 {[%mdl 8192] [#]} (34... Nd4 $11 35. Qe4 Qc5) 35. Qc3 $1 $18 {[%cal Rc3c4]} Qxc3 36. bxc3 Re7 {[#]} (36... Nc5 $142 37. Bxc7 Rf6) 37. Bxc7 $1 {[%mdl 512]} Rxc7 38. d6 Rxc3 39. e7 {Accuracy: White = 55%, Black = 34%.} 1-0

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.18"]
[Round "4"]
[White "Kiewra, Keaton"]
[Black "Niemann, Hans"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "2364"]
[BlackElo "2439"]
[Annotator "TA"]
[PlyCount "130"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,130,0,0,0,0,20,0,21,37,26,0,16,-12,0,0,0,-28,-20,-22,-31,-39,0,0,0,0,0,0,0,0,-14,-60,0,-32,42,19,132,245,220,226,220,167,243,118,119,114,131,93,114,143,205,178,167,0,0,-266,-262,-254,-260,-260,-221,-247,-166,-530,-527,-522,-514,-428,-339,-350,-347,-351,-324,-240,-318,-311,-285,-237,-120,-412,-404,-672,-672,-643,-629,-706,-673,-662,-71,-71,-71,-71,-71,-173,-173,-175,-175,-175,-175,-184,-184,-191,-191,-199,-200,-4132,-2043,-6382,-6391,-5699,-6260,-5800,-5654,-5650,-5474]} 1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. b3 Be7 5. Bb2 b6 (5... dxc4 6. bxc4 c5 7. Nc3 b6 8. g4 Bb7 9. g5 Nfd7 10. h4 Ne5 11. Nxe5 Bxh1 12. Qa4+ Nd7 13. f3 {0-1 (49) Mamedyarov,S (2801)-Nakamura,H (2777) Saint Louis 2018}) 6. Be2 {A13: English Opening: 1...e6} dxc4 7. bxc4 Bb7 8. O-O O-O 9. d4 c5 10. Nbd2 {LiveBook: 5 Games} cxd4 $146 ({Predecessor:} 10... Qc7 11. Qc2 Rd8 12. Rfd1 Nbd7 13. a4 Rac8 14. a5 h6 15. Bc3 Bc6 16. axb6 axb6 {½-½ (40) Demidenko,V (2255)-Bolschakov,A (2348) Russia 2000}) 11. exd4 Ne4 12. a4 Nd7 13. Nxe4 Bxe4 14. Nd2 Bb7 15. Nb3 Qc7 16. a5 Rfd8 17. a6 Be4 18. Nd2 Bg6 19. Bf3 Rac8 20. Bb7 $36 {[%mdl 2048] White is more active.} Rb8 21. Qe2 Bf6 {Threatening ...Nc5!} 22. Nf3 Bh5 23. Rfe1 Nf8 24. Rad1 Ng6 (24... Rd7 $1 $15) 25. g3 {[%cal Bg2g3,Bg3g4][%mdl 32]} Ne7 (25... Rd7 $15) 26. h3 $14 {Black must now prevent g4.} h6 (26... Bxf3 $11 27. Bxf3 Rd6) 27. g4 $1 $16 {[%cal Rg4h5]} Bg6 28. d5 $1 Bxb2 29. Qxb2 h5 (29... Qxc4 $142 30. Rc1 Qf4) 30. Ne5 (30. Qa3 $18 {and White stays clearly on top.} Qc5 31. Qxc5 bxc5 32. d6 (32. dxe6 hxg4 33. hxg4 f6 $18)) 30... hxg4 31. hxg4 Rd6 32. dxe6 Rxe6 33. Bd5 Rf6 (33... Rd6 $16) 34. Nd7 $18 Nxd5 35. Rxd5 $2 ({White has to play} 35. Nxb8 $18 Rf4 36. f3 (36. cxd5 $2 Rxg4+ 37. Kf1 Qh2 $19) (36. Re8+ Kh7 $16) 36... Rxf3 37. Re8+ (37. cxd5 Rg3+ 38. Kh1 Rh3+ 39. Kg1 Qf4 $19) 37... Kh7 38. Qh2+ (38. cxd5 $2 Rg3+ {[%mdl 64] Double Attack} 39. Kh1 Rh3+ 40. Kg1 Rg3+ {[%mdl 64] Double Attack} 41. Kh1 Rh3+ 42. Kg1 Rg3+ $19 {[%mdl 64] Double Attack}) (38. Rxd5 Rg3+ {[%mdl 64] Double Attack} 39. Kh2 Rc3+ 40. Kh1 Rh3+ 41. Kg1 Rg3+ {[%mdl 64] Double Attack} 42. Kh2 Rc3+ 43. Kh1 Rh3+ 44. Kg1 Rg3+ $17 {[%mdl 64] Double Attack}) 38... Qxh2+ 39. Kxh2) 35... Rf4 $11 36. Qe2 $2 {[%mdl 8192]} (36. Nxb8 $11 Rxg4+ 37. Kf1) 36... Re4 $19 37. Qxe4 Bxe4 38. Rxe4 Rc8 39. g5 Qc6 40. f3 $2 (40. Ne5 {is tougher.} Qe8 41. Red4) 40... b5 41. Ne5 Qxa6 42. Rxb5 Qa1+ 43. Kg2 Qc1 44. g6 Qd2+ 45. Kg3 fxg6 $1 46. Nxg6 {Threatens to win with Ne7+.} Qd6+ 47. Ne5 Qd1 (47... Rc5 $1 $19 {Strongly threatening ...a5.} 48. f4 Rxb5 49. cxb5 Qc5) 48. Rb7 $2 {[%mdl 8192]} (48. Rd5 $17 {was the only defense.} Qg1+ 49. Kh3) 48... a5 49. c5 (49. Re7 $142 Qg1+ 50. Kh3) 49... Qg1+ 50. Kh3 Qxc5 51. Rc4 Qf8 {Hoping for ...Rxc4.} ({Weaker is} 51... Qxe5 52. Rxc8+ Kh7 53. Rc4 $15) 52. Rg4 {White hopes to continue with Rf7.} Re8 $2 (52... Qf6 $19 53. Rb5 Qa6) 53. Rf7 $17 Rxe5 54. Rxf8+ Kxf8 {[%mdl 4096] Endgame KR-KR} 55. Rc4 (55. Kg3 $17) 55... Re7 $1 $19 56. Kg4 Ra7 $1 {aiming for ...a4.} 57. Ra4 Ke7 58. Kf4 Kd6 59. Ke3 Kc5 60. Kd2 Kb5 $1 {[%cal Rb5a4]} 61. Ra1 $2 (61. Ra3) 61... a4 {[%cal Ba5a4,Ba4a3][%mdl 32] Black is clearly winning.} 62. Kc2 {[#]} a3 $1 {[%cal Ra3a2]} 63. Ra2 Kc4 64. Kb1 {[#]} Kd3 $1 65. Rg2 Ke3 {Accuracy: White = 46%, Black = 63%.} 0-1

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.18"]
[Round "5"]
[White "Shtembuliak, Evgeny"]
[Black "Kevlishvili, Robby"]
[Result "1-0"]
[ECO "A21"]
[WhiteElo "2487"]
[BlackElo "2451"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,107,62,62,63,64,59,67,55,65,69,60,47,60,53,70,53,71,66,89,81,81,74,75,79,115,105,145,140,157,162,157,156,158,145,169,177,175,150,171,154,160,164,179,195,188,90,106,87,89,68,187,177,191,194,174,168,227,177,182,154,206,175,290,239,246,247,250,252,256,238,458,458,458,444,496,467,866,687,675,659,595,435,435,433,426,420,395,395,391,381,758,744,949,949,921,898]} 1. c4 e5 2. Nc3 Bb4 3. Nd5 Bc5 4. e3 c6 5. d4 Bf8 (5... cxd5 6. dxc5 Qa5+ 7. Bd2 Qxc5 8. Qg4 g6 9. b4 Qd6 10. cxd5 Nf6 11. Qc4 Na6 12. Rc1 b6 {1-0 (64) So,W (2812)-Bacrot,E (2708) Paris 2017}) 6. Nc3 {A21: English Opening: 1...e5 2 Nc3} d6 7. Nf3 Nd7 {LiveBook: 4 Games} 8. Be2 {White is slightly better.} Ngf6 9. Qc2 Be7 10. O-O O-O 11. Rd1 Qc7 12. b4 $146 ({Predecessor:} 12. Bd2 Re8 13. b4 Bf8 {½-½ (77) Bruno,F (2453)-Laketic,G (2451) Positano 2008}) 12... Re8 13. Bb2 Nf8 14. a4 Ng6 15. a5 a6 16. Na4 Bg4 17. h3 Bxf3 18. Bxf3 Bf8 19. d5 Nh4 20. Be2 cxd5 21. Nb6 Rab8 22. Nxd5 Nxd5 23. Rxd5 Qe7 24. g3 {And now c5 would win.} Ng6 25. Rad1 Qc7 26. Qe4 Rbd8 27. Bd3 Be7 28. h4 Nf8 29. h5 (29. Bc2 $18 {has better winning chances.}) 29... g6 $16 {and if ...Nd7 works, Black does fine.} 30. hxg6 hxg6 31. c5 {Black must now prevent Bc4.} dxc5 {[#]} (31... Nh7 $1 $14) 32. Bc4 $1 $36 {[%cal Bd3c4,Bc4b3,Bb3d5][%mdl 2080] White is in control.} (32. Bxe5 Bd6 $14) 32... Rxd5 33. Rxd5 ({Much less strong is} 33. Qxd5 $6 Bf6 $14) 33... Bf6 34. Rxc5 Qd7 (34... Qe7 {was necessary.} 35. Bd5 Rd8) 35. Rd5 (35. Bxe5 $6 Bg7) 35... Qc7 36. Kg2 Bg7 (36... Kg7 $16 {keeps fighting.} 37. f4 Kg8) 37. Bb3 Bf6 (37... Ne6 {was called for.} 38. Bxe5 Qc6) 38. Rc5 Qe7 39. Bd5 Rb8 40. Qc4 Rd8 41. e4 Rd7 $2 (41... Ne6) 42. b5 axb5 43. Rxb5 Ne6 44. Qc8+ Nd8 {[#]} (44... Kh7 $142 45. Rxb7 Rxb7 46. Qxb7 Qxb7 47. Bxb7 Bd8) 45. Ba3 $1 {[%mdl 512]} Qe8 (45... Qxa3 46. Qxd7) 46. a6 bxa6 47. Bc6 Rc7 48. Qxc7 {Intending Rb8 and mate.} ({Less strong is} 48. Bxe8 Rxc8 49. Rb6 Ne6 $14) 48... Qxc6 49. Qxc6 Nxc6 {KRB-KBN} 50. Rb6 {[%mdl 64] Double Attack} Be7 51. Bb2 ({Don't take} 51. Rxc6 Bxa3 52. Rxa6 Bc1 $18) 51... Na5 $2 (51... Nd4 52. Rxa6 Kf8) 52. Bxe5 {White is clearly winning.} Nc4 53. Rb8+ Bf8 54. Bd4 {Accuracy: White = 64%, Black = 48%.} 1-0

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.18"]
[Round "5"]
[White "Patel, Advait"]
[Black "Gurevich, Dmitry"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2467"]
[BlackElo "2393"]
[Annotator "TA"]
[PlyCount "47"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,47,7,8,0,0,43,10,10,24,61,55,53,51,112,94,95,103,102,102,102,75,94,27,22,0,0,-11,12,2,4,4,0,0,62,14,16,15]} 1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. O-O Bf5 5. d3 e6 6. c4 dxc4 7. dxc4 Nbd7 {A11: English Opening: 1...c6} (7... Qxd1 8. Rxd1 Bc2 9. Rf1 Nbd7 10. Nc3 Bb4 11. Bd2 a5 12. a3 Bxc3 13. Bxc3 a4 14. Rac1 Be4 15. Rfd1 {0-1 (86) Carlsen,M (2832)-Grischuk,A (2761) Paris 2017}) 8. Nc3 Bc5 9. Bf4 $146 ({Predecessor:} 9. Nd4 Bg6 10. Bg5 O-O 11. Rc1 Qb6 12. Na4 Qa6 13. Bxf6 gxf6 14. Nb3 Qxa4 15. Qxd7 {1-0 (34) Diehl,K (2082)-Geis,J (1189) Zweibruecken 2013}) 9... Nb6 10. Ne5 O-O 11. e4 Bg6 12. Qe2 Qe7 (12... Bh5 $14 13. g4 Bg6) 13. Nxg6 hxg6 14. e5 Nh5 15. Bd2 {Strongly threatening g4.} f5 16. exf6 gxf6 {[%cal Bg7f6,Bf6f5][%mdl 32]} 17. Rad1 (17. Ne4 $16) 17... f5 $1 $11 18. Rfe1 Rae8 19. Bf3 Ng7 20. Bf4 g5 21. Be5 g4 22. Bg2 Rf7 ({Black should play} 22... Nd7 $11) 23. Rd2 Nd7 24. Red1 {Accuracy: White = 30%, Black = 59%.} 1/2-1/2

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.18"]
[Round "5"]
[White "Boros, Denes"]
[Black "Kiewra, Keaton"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2442"]
[BlackElo "2364"]
[Annotator "TA"]
[PlyCount "45"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,45,31,45,21,15,0,0,-36,-34,-35,0,7,0,-7,-14,-2,46,45,37,34,149,143,265,268,264,269,467,459,443,456,465,489,485,456,448,448]} 1. e4 c5 2. Nc3 a6 3. Nge2 e6 4. g3 Nc6 5. Bg2 Nf6 6. O-O {B23: Closed Sicilian: Lines without g3} Qc7 {LiveBook: 26 Games} (6... b5 7. d3 Bb7 8. Be3 Be7 9. h3 O-O 10. g4 d5 11. exd5 Nxd5 12. Nxd5 exd5 13. d4 cxd4 14. Nxd4 {½-½ (40) McShane,L (2706)-Caruana,F (2770) Moscow 2012}) 7. a4 Be7 8. h3 {The position is equal.} O-O 9. f4 $146 {[%cal Bf2f4,Bf4f5][%mdl 32]} ({Predecessor:} 9. d3 Rb8 10. g4 d6 11. Ng3 b5 12. axb5 axb5 {1-0 (29) Alonso Moyano,J (2406)-Patil,P (2181) Barbera del Valles 2015}) 9... d5 10. d3 Rb8 11. exd5 exd5 {[%cal Be6d5,Bd5d4][%mdl 32]} 12. f5 $1 Nb4 13. Nf4 d4 14. Ne4 Bd7 15. Nh5 $36 {[%mdl 2048] White has the initiative.} Nxe4 (15... Nxh5 $1 $14 16. Qxh5 Nd5) 16. Bxe4 $16 {[#] Threatens to win with Bf4.} f6 (16... Kh8 $16 {was necessary.}) 17. c3 $18 dxc3 18. bxc3 Qe5 $2 (18... Bd6 19. cxb4 cxb4) 19. Qb3+ {White is clearly winning.} c4 20. Qxc4+ Kh8 21. Bf4 {[%mdl 64] [#] Skewer} Qc5+ 22. Qxc5 Bxc5+ 23. d4 {Accuracy: White = 73%, Black = 38%.} 1-0

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.18"]
[Round "5"]
[White "Niemann, Hans"]
[Black "Balakrishnan, Praveen"]
[Result "1/2-1/2"]
[ECO "B11"]
[WhiteElo "2439"]
[BlackElo "2409"]
[Annotator "TA"]
[PlyCount "141"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,141,50,31,75,65,76,73,78,62,60,64,89,25,26,23,24,9,29,20,32,-14,37,36,29,23,33,41,35,33,51,40,55,37,83,30,37,8,11,12,16,8,14,0,0,0,8,8,8,0,8,8,20,8,8,8,20,0,20,8,21,8,21,0,21,8,8,8,8,8,8,8,8,0,8,0,8,0,8,8,62,8,10,9,62,62,62,62,67,85,87,0,0,0,34,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. d3 Nf6 7. Bd2 Nbd7 8. g4 g6 9. O-O-O {B11: Caro-Kann: Two Knights Variation} (9. g5 Nh5 10. O-O-O Bg7 11. Ne2 Qb6 12. d4 dxe4 13. Qxe4 O-O-O 14. c3 Qa5 15. Kb1 Qd5 16. Qxd5 exd5 {½-½ (47) Andreikin,D (2736)-Rozum,I (2590) Sochi 2016}) 9... Bg7 10. Qg3 {LiveBook: 5 Games} d4 $146 ({Predecessor:} 10... O-O 11. f4 b5 12. e5 Ne8 13. h4 f6 14. d4 c5 15. h5 cxd4 16. Nxb5 g5 {1-0 (43) Sutovsky,E (2624)-Gerzhoy,L (2473) Tromsoe 2014}) 11. Ne2 {White is better.} Qb6 12. Bg2 O-O-O 13. Kb1 Nc5 14. Nc1 a5 15. Nb3 (15. Rhf1 $16) 15... Nxb3 $11 16. cxb3 Nd7 17. Qf3 f6 18. Qe2 Qb5 19. Bc1 Nb6 ({Black should play} 19... Nc5 $11) 20. Qc2 $14 a4 21. h4 axb3 22. Qxb3 Qxb3 23. axb3 Kd7 24. f4 h6 25. Bd2 Ra8 26. f5 (26. Rdf1 $16) 26... g5 $11 27. Rh2 e5 28. Rdh1 Ke7 29. b4 Nd7 30. Bf3 b5 31. Bd1 Rac8 32. Bb3 Ra8 33. Ba2 Rab8 34. Be6 Nb6 35. Kc2 Ra8 36. Kb3 Kd6 $1 37. Kc2 Ke7 38. Bb3 Nd7 39. Kb1 Rab8 40. Be6 Nb6 41. Be1 Kd6 42. Bg3 Rbe8 43. Kc2 Ra8 44. Bb3 Nd7 45. Kb1 Rab8 46. Kc2 Ra8 $1 47. Kd2 Nb6 48. Ke2 Nd7 (48... Rhe8 $11) 49. Kf3 (49. Be1 $1 $14) 49... Nb6 50. Be6 Nd7 ({Better is} 50... Rhb8 $11) 51. Be1 $14 Nb6 52. Bd2 Ke7 53. Bc1 Kd6 54. b3 (54. Kf2 $16) 54... Ke7 55. Rc2 Kd6 56. Bxg5 (56. Bd2 {feels hotter.} Nd7 57. Rhc1 Ra6 58. Kg3 Nf8 59. Bf7) 56... hxg5 {The position is equal.} 57. Rhc1 {[#]} Rhc8 $1 58. Bxc8 Rxc8 59. hxg5 fxg5 60. Ra2 Ra8 61. Rac2 Rc8 62. Kg3 Bf6 63. Rh2 Ra8 64. Rhc2 Rc8 65. Ra2 Ra8 66. Ra5 Rh8 67. Ra7 Nd7 68. Rca1 Be7 69. Rc1 Bf6 70. Ra2 Nb8 71. Ra7 {Accuracy: White = 29%, Black = 61%.} 1/2-1/2

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.18"]
[Round "5"]
[White "Bivol, Alina"]
[Black "Ali Marandi, Cemil Can"]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "2403"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "48"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,48,31,30,16,16,25,28,-20,-2,-27,-26,-60,-48,-106,-28,-93,-93,-89,-83,-75,-78,-139,-95,-172,-126,-155,-125,-127,-127,-351,-343,-394,-335,-331,-325,-785,-766,-1053,-1046]} 1. Nf3 f5 2. d3 {[%cal Bd2d3,Bd3d4][%mdl 32]} Nf6 3. e4 d6 4. exf5 (4. Nc3 Nc6 5. exf5 Bxf5 6. d4 Nb4 7. Bb5+ c6 8. Ba4 g6 9. O-O Bg7 10. Ne2 O-O 11. Ng3 Bd7 {1-0 (37) Ding,L (2777)-Zhang,Z (2634) China 2016}) 4... Bxf5 5. d4 Qd7 6. Bd3 {A04: Unusual lines after 1 Nf3 and King's Indian Attack} Nc6 {LiveBook: 4 Games} 7. Bxf5 Qxf5 8. O-O {The position is equal.} e5 9. dxe5 dxe5 {[%cal Bd6e5,Be5d4][%mdl 32]} 10. Nc3 Bd6 $146 ({Predecessor:} 10... Bc5 11. Bg5 e4 12. Bxf6 exf3 13. Re1+ Kf7 14. Bh4 Nd4 15. Ne4 Rhe8 16. Ng5+ Kg8 {½-½ (16) Mohammad,N (2380)-Pruijssers,R (2536) New Delhi 2018}) 11. Qe2 O-O-O 12. Nh4 (12. Be3 $15) 12... Qd7 ({Black should play} 12... Qe6 $1 $17 13. Be3 e4) 13. Be3 (13. Nf3 $11 {remains equal.}) 13... Nd4 $17 14. Bxd4 exd4 15. Nb5 {[#]} Bc5 $1 $36 {[%mdl 2048] Black is in control.} 16. a4 (16. b4 $142 Bxb4 17. Qc4) 16... a6 17. Qe5 (17. Qc4 $17 {was called for.} Qd5 18. Na3) 17... Nd5 {[%cal Bf6d5,Bd5e3,Be3d1][%mdl 32]} ({Weaker is} 17... axb5 18. Qxc5 b6 19. Qb4 $14 (19. Qxb5 Qxb5 20. axb5 Rhe8 $14)) 18. c4 dxc3 ({Don't play} 18... axb5 19. axb5 Kb8 20. cxd5 $15) 19. Nxc3 {Strongly threatening Rad1.} Rhe8 20. Qg3 $2 {[#]} (20. Qh5 $17 {is a better defense.} g6 21. Qg5) 20... Ne3 $1 $19 {[%mdl 512]} 21. Qg5 (21. fxe3 Rxe3) 21... Ba7 22. Rfe1 Nd1 {[%cal Re8e1]} 23. Qxd8+ $2 (23. Rxe8 Rxe8 24. h3 Bxf2+ 25. Kh2 Nxb2 26. Nf3) 23... Qxd8 {[%cal Re8e1]} 24. Rxe8 Bxf2+ {Precision: White =  6%, Black = 84%.} 0-1

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.19"]
[Round "6"]
[White "Ali Marandi, Cemil Can"]
[Black "Kevlishvili, Robby"]
[Result "1/2-1/2"]
[ECO "C95"]
[WhiteElo "2552"]
[BlackElo "2451"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 35,94,31,37,18,38,25,43,10,18,-27,18,0,0,-22,0,-20,-24,-17,-16,-31,-28,-10,-19,-21,-22,-25,27,-15,45,-32,49,82,54,56,62,84,56,72,116,109,100,86,125,12,384,173,173,173,158,0,83,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 {[%cal Bf1b5,Bb5a4,Ba4b3][%mdl 32]} a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 10. d4 Nbd7 11. Nbd2 Bb7 12. Bc2 Re8 13. Nf1 Bf8 14. Ng3 g6 15. Bg5 h6 16. Bd2 exd4 {C95: Closed Ruy Lopez: Breyer Variation with 10 d4} 17. cxd4 c5 18. d5 Bg7 {LiveBook: 7 Games. White is slightly better.} 19. Bf4 {[#]} Qe7 $146 ({Predecessor:} 19... Nb6 20. Qc1 Kh7 21. Rb1 Rc8 22. a3 a5 23. b3 Ba6 24. Qd2 {0-1 (69) Swiercz,D (2637)-Amin,B (2672) Martuni 2017}) 20. Qd2 Qf8 21. Rad1 Nb6 {[%cal Bd7b6,Bb6c4,Bc4b2][%mdl 32]} 22. Qc1 Rac8 23. Nf1 a5 {[%cal Ba6a5,Ba5a4][%mdl 32]} 24. N1h2 a4 25. Ng4 Nxg4 26. hxg4 Nc4 27. b3 Nb2 28. Rd2 axb3 29. axb3 c4 $1 {[%cal Rc4b3] Threatens to win with ...cxb3.} 30. Qb1 c3 ({Black should play} 30... b4) 31. Rde2 b4 (31... g5 $1 $11 32. Bg3 Be5) 32. Qc1 (32. e5 $1 $14) 32... Ra8 (32... g5 $15 33. Bg3 Be5) 33. e5 $1 $14 {[%cal Re5e6] Black must now prevent e6.} Bxd5 34. exd6 Rxe2 35. Rxe2 Qc8 36. Ne5 Qb7 37. Qe1 Bf8 (37... Bxg2 $2 38. Nxg6 $1 {[%mdl 512]} Rf8 39. Nxf8 $18) 38. d7 Rd8 (38... Bxg2 39. Bxh6 $1 {[%mdl 512]} Bf3 40. Bxf8 $16) 39. f3 (39. Qc1 $1 $16 Qb5 40. Re1 Rxd7 41. Nxd7 Qxd7 42. f3 (42. Bxh6 Bxg2 43. Bf5 Qd8 $18)) 39... Bc6 $2 {[%mdl 8192] [#]} (39... g5 $11 {and Black stays safe.} 40. Bg3 Be6) 40. Qh4 (40. Bxh6 $142 $1 {[%mdl 512]} Bxh6 41. Nxf7 $1 {[%mdl 512]} Qxd7 42. Nxh6+ Kf8 43. Re6 (43. Bxg6 Qd4+ 44. Re3 Qf4 $17) 43... Qd4+ 44. Kh1) 40... Rxd7 $18 41. Nxd7 Qxd7 42. Bxh6 $2 ({Only move:} 42. Qf6 $1 $16 {White threatens Be5 and mate.} Bg7 43. Qd6) 42... Bb5 {[#]} (42... Bxh6 $11 43. Qxh6 Bb5) 43. Re3 (43. Bxf8 $1 $16 {[%mdl 512]} Bxe2 (43... Kxf8 44. Qh8#) 44. Be7 Qd4+ 45. Kh1) 43... Bxh6 $11 {The position is equal.} 44. Qxh6 {Hoping for Qf4.} Qd2 45. Bxg6 Qd1+ $1 {[%mdl 64] Double Attack} 46. Kf2 {Intending Qh7+ and mate.} Qd2+ 47. Kg1 {White wants to mate with Qh7+.} Qd1+ $1 {[%mdl 64] Double Attack. Accuracy: White = 31%, Black = 41%.} 1/2-1/2

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.19"]
[Round "6"]
[White "Balakrishnan, Praveen"]
[Black "Boros, Denes"]
[Result "0-1"]
[ECO "B63"]
[WhiteElo "2409"]
[BlackElo "2442"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,74,12,18,27,38,14,14,29,22,19,12,-11,0,-79,0,-26,-25,-114,-113,-155,-149,-127,-124,-145,-116,-102,-105,-178,-186,-192,-146,-166,-147,-322,-336,-414,-418,-520,-545,-529,-499,-488,-476,-470,-469,-803,-785,-784,-794,-769,-783,-764,-755,-997,-979,-915,-892]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Qb6 8. Nb3 a6 9. O-O-O Be7 10. f4 {[%cal Bf2f4,Bf4f5][%mdl 32]} O-O 11. Be2 {B66: Sicilian: Richter-Rauzer: 7...a6 8 0-0-0 h6} Rd8 12. g4 (12. Kb1 Qc7 13. h4 b5 14. Bf3 Bb7 15. Qe3 b4 16. Na4 Nd7 17. e5 d5 18. Nd4 Nxd4 19. Qxd4 Bxg5 20. hxg5 {1-0 (54) Almasi,Z (2721)-Romanov,E (2605) Warsaw 2010}) 12... Qc7 13. Bxf6 {The position is equal.} Bxf6 14. g5 Be7 15. f5 $146 ({Predecessor:} 15. Rhf1 b5 16. f5 b4 17. Nb1 a5 18. f6 Bf8 {0-1 (28) Clement,O (2185)-Relange,E (2505) Montpellier 1997}) 15... b5 ({Much weaker is} 15... exf5 $6 16. Nd5 $16) 16. Bd3 (16. Rhf1 $11) 16... Bf8 ({Black should try} 16... Ne5 $17 {Hoping for ...b4.} 17. Kb1 b4) 17. Ne2 Ne5 18. Nf4 {[#]} (18. Nbd4 $11 {remains equal.}) 18... d5 $1 $36 {[%cal Rd5e4][%mdl 2048] aiming for ...dxe4. Keeping White busy.} 19. exd5 exf5 ({Weaker is} 19... exd5 20. Rhf1 $11) 20. Rhf1 g6 21. Qa5 Nxd3+ 22. Rxd3 Qd6 23. Qc3 (23. Ne6 $17 {was called for.} Bxe6 24. dxe6) 23... Bd7 $19 24. Na5 {White wants to play Nb7.} b4 25. Qd2 {With the idea Nb7.} Re8 26. Re3 $2 {[#]} (26. Nc4 $17 Qc5 27. b3) 26... Bb5 27. Rff3 Re4 28. Ng2 Qxh2 {Black is clearly winning.} 29. Rxe4 fxe4 30. Re3 Re8 31. Nb3 Bd6 32. Qf2 (32. Re1 $142) 32... Re5 33. Qg3 Qxg3 34. Rxg3 Rxd5 35. Rg4 Be7 36. Rxe4 Bxg5+ 37. Ne3 f5 {Accuracy: White = 30%, Black = 91%.} 0-1

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.19"]
[Round "6"]
[White "Bivol, Alina"]
[Black "Niemann, Hans"]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "2403"]
[BlackElo "2439"]
[Annotator "TA"]
[PlyCount "132"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,132,6,-2,1,-25,4,-31,0,-14,-8,-21,-14,-23,-16,-5,-12,-14,-16,-25,-20,-24,4,9,7,0,0,0,0,4,22,0,0,0,0,0,0,8,30,0,0,0,0,0,15,0,0,0,43,0,0,-79,-72,-79,-77,-75,-74,-86,-62,-62,-62,-64,-69,-159,-125,-126,-116,-98,-107,-102,-100,-123,-79,-234,-234,-224,-223,-202,-146,-145,-136,-124,-135,-131,-112,-113,-115,-105,-118,-126,-132,-115,0,-126,-127,-535,-508,-636,-614,-459,-207,-238,-260,-391,-320,-318,-303,-2092,-1730,-1989,-1844,-6183,-6094,-6087,-5999,-5999,-4802]} 1. Nf3 c5 2. b3 Nf6 3. Bb2 e6 4. g3 b6 5. Bg2 Bb7 6. O-O {A05: Réti Opening: 1 Nf3 Nf6} Be7 7. e3 O-O 8. d3 d5 9. Qe2 Nc6 10. Nbd2 {LiveBook: 10 Games} Nd7 $146 ({Predecessor:} 10... Qc7 11. e4 dxe4 12. dxe4 e5 13. c3 a5 14. a4 Ba6 15. Nc4 b5 16. axb5 Bxb5 17. Nfd2 {1-0 (50) Nakamura,H (2735)-Simonian,H (2521) ICC INT 2010}) 11. e4 b5 12. h4 a5 13. a4 {Black must now prevent exd5.} (13. exd5 {feels hotter.} exd5 14. c4 Re8 15. cxb5 Nb4 16. Rae1) 13... bxa4 14. exd5 exd5 {White should prevent ...axb3.} 15. Rxa4 Bf6 16. Bxf6 Nxf6 17. Qe3 Nb4 18. Qxc5 Nd7 $1 {[%cal Rd7c5]} 19. Qd6 Nb6 (19... Ra6 {looks sharper.} 20. Qf4 Nxc2 21. Rc1 Rf6 22. Qg4 Nb4) 20. Qxd8 Rfxd8 21. Raa1 Nxc2 22. Rac1 Nb4 23. Rc7 Rd7 24. Rxd7 Nxd7 25. d4 Kf8 26. Rc1 Rc8 27. Ra1 Nc6 28. Bf1 Ke7 29. Bb5 Ndb8 30. Nf1 Ba6 (30... Kd6 {is interesting.} 31. Ne3 g6 32. h5 Rc7 33. Ng4 Ba6) 31. Bxa6 Nxa6 32. Ne3 Nc7 33. Re1 Kd7 34. Nf5 (34. Ne5+ $11 Nxe5 35. dxe5) 34... g6 $17 35. Nh6 f6 36. Ng4 Rf8 37. Rc1 h5 38. Ne3 Rb8 39. Rc3 Kd6 40. g4 (40. Kf1 $15) 40... hxg4 41. Nxg4 Ne6 42. Nxf6 Ncxd4 43. Nxd4 Nxd4 {[%mdl 4096] Endgame KRN-KRN} 44. Rd3 Rb4 45. Ne8+ $2 (45. Kf1 $17) 45... Kd7 $1 $19 {[%cal Rd7e8]} 46. Nf6+ Ke6 47. Ne8 Ne2+ {[%mdl 64] Discovered Attack} ({But not} 47... Nxb3 48. Nc7+ Kd6 49. Nxd5 $17) 48. Kf1 {[#]} Nf4 $1 {[%cal Rf4d3]} 49. Re3+ Kd7 {...Nh5 is the strong threat.} 50. Nf6+ Kd6 51. Ne8+ Kc6 52. Rc3+ Kd7 53. Nf6+ Kd6 {And now ...a4 would win.} 54. Ne8+ Kd7 55. Nf6+ $1 Ke6 56. Ne8 $2 {[%mdl 8192] [#]} (56. Rc6+ $17 {is a better chance.} Ke7 57. Ke1) 56... d4 $1 {[%cal Rd4c3]} 57. Rf3 Ke5 58. Ke1 Ne6 (58... d3 $142 59. Re3+ Kd4) 59. Kd1 Nc5 {Threatens to win with ...d3.} 60. Rg3 (60. h5 $142 gxh5 61. Rh3) 60... d3 61. Rg5+ Kd4 62. Nc7 $2 (62. Nf6 Nxb3 63. Rxg6) 62... Rxb3 {( -> ...Rb1+). Black is clearly winning.} 63. Rd5+ Kc4 64. Rd8 Rb1+ 65. Kd2 Nb3+ 66. Ke3 Re1+ {Accuracy: White = 36%, Black = 65%.} 0-1

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.19"]
[Round "6"]
[White "Gurevich, Dmitry"]
[Black "Shtembuliak, Evgeny"]
[Result "1/2-1/2"]
[ECO "E48"]
[WhiteElo "2393"]
[BlackElo "2487"]
[Annotator "TA"]
[PlyCount "113"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,113,10,0,0,-6,-2,1,-5,-18,-26,-45,-18,-29,-20,-27,-19,-14,-10,-13,-20,-31,0,-9,0,-7,31,24,14,21,28,0,25,0,113,25,80,84,199,185,190,193,168,83,89,88,100,6,7,0,55,-4,-6,-4,-6,-12,-19,-13,-12,-18,42,42,76,85,78,86,101,95,259,163,163,163,163,163,163,163,170,172,141,183,184,167,154,32,38,-7,-7,0,0,0,0,-25,-19,-26,-19,-25,-25,-32]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. cxd5 exd5 7. Nge2 Re8 8. O-O Bf8 9. a3 a5 {E48: Nimzo-Indian: Rubinstein: 5 Bd3 d5 including 6 Ne2, but excluding 6 a3} 10. Rb1 {LiveBook: 3 Games} Na6 11. Kh1 $146 ({Predecessor:} 11. f3 c5 12. g4 g6 13. Ng3 h6 14. Kg2 Rb8 15. Bb5 Bd7 16. Bxa6 bxa6 17. dxc5 Bxc5 {0-1 (55) Kaspi,A (2502)-Finkel,A (2467) Kfar Sava 2000}) 11... b6 {[%cal Bb7b6,Bb6b5][%mdl 32] The position is equal.} 12. f3 c5 $1 13. Bb5 Bd7 14. Qa4 Nc7 15. Bxd7 Nxd7 16. Nf4 {[#]} b5 $1 {[%mdl 512]} 17. Qd1 (17. Nxb5 $2 Nb6 $19) 17... Nb6 18. dxc5 Bxc5 19. e4 d4 20. Nce2 Nc4 21. a4 {[%cal Ba3a4,Ba4b5,Bb5b6][%mdl 32]} Ba7 22. b3 Ne3 23. Bxe3 $1 dxe3 24. Rc1 Ne6 25. axb5 f5 (25... Nxf4 $11 {remains equal.} 26. Nxf4 Qg5) 26. Qd5 (26. exf5 Nxf4 27. Nxf4 (27. Qxd8 $2 Raxd8 28. Nxf4 e2 $19) 27... e2 $17) (26. Nxe6 $1 $16 Rxe6 27. Qc2 (27. exf5 Re5 $16)) 26... Qxd5 (26... fxe4 $1 $11 27. Qc4 (27. fxe4 Qxd5 28. Nxd5 Rab8 $11) (27. Qxe4 Nxf4 28. Qxf4 Qd5 $16) 27... Qd7) 27. Nxd5 $16 (27. exd5 Nxf4 28. Nxf4 e2 $19) 27... fxe4 (27... Rab8 $16) 28. b6 $18 {[%mdl 64] Zwischenzug} (28. fxe4 Rab8 $11) 28... Rad8 29. fxe4 (29. bxa7 $6 Rxd5 30. Rc6 (30. fxe4 Rd7 $14) 30... Nf8 $14) 29... Bb8 30. Rf5 (30. Rfd1 $18) 30... Bd6 $16 31. Rc6 Nc5 32. e5 (32. Nxe3 $6 Rxe4 33. Rf3 Nxb3 $11) (32. Ndc3 $16) 32... Bf8 $11 33. e6 Nxe6 ({Black should try} 33... Rxe6 $11 34. Rxe6 Nxe6) 34. Re5 (34. g3 $14) 34... Nc5 35. Rxe8 $1 ({Wrong is} 35. Rxe3 $2 Rxe3 36. Nxe3 Re8 $19) 35... Rxe8 36. g3 Rd8 37. Ndc3 Nxb3 38. Kg2 a4 (38... Nc5 $11) 39. Nxa4 $14 Ra8 40. Rc3 {Black must now prevent b7.} Nd2 41. b7 ({Don't blunder} 41. Rxe3 $2 Rxa4 42. Rd3 Nc4 $19) 41... Rb8 42. Rc7 {Strongly threatening Nc5.} Ne4 $2 (42... Nb3 $16) 43. Kf3 {[%mdl 64] Double Attack} Ng5+ 44. Kxe3 {aiming for Nd4.} Ne6 45. Rc6 Kf7 {[#]} 46. Nd4 $1 {[%cal Rd4e6][%mdl 64] Overworked Piece} (46. Rb6 Nc5 $11) 46... Nxd4 47. Rc7+ ({Inferior is} 47. Kxd4 Rxb7 48. Nb6 g6 $11) 47... Ke6 {...Bd6 is the strong threat.} 48. Kxd4 $16 {[%mdl 4096] Endgame KRB-KRN} Kd6 49. Rf7 {Threatens to win with Nc5.} Kc6 {[#]} 50. Ke5 (50. Kc4 $1 $16) 50... Bd6+ $14 51. Ke6 Re8+ 52. Kf5 Re5+ 53. Kg4 Re4+ {[%mdl 64] Double Attack} 54. Kh3 Rxa4 55. Rxg7 h5 56. Rg6 Rb4 57. Rh6 {Accuracy: White = 40%, Black = 57%.} 1/2-1/2

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.19"]
[Round "6"]
[White "Kiewra, Keaton"]
[Black "Patel, Advait"]
[Result "1/2-1/2"]
[ECO "E97"]
[WhiteElo "2364"]
[BlackElo "2467"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 28,50,7,28,25,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,5]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. b4 Ne8 10. c5 f5 11. Ng5 h6 12. Ne6 {E97: King's Indian: Classical Main Line (6...e5 7 0-0 Nc6): 8 Be3 and 8 d5 Ne7, not 9 Ne1} Bxe6 13. dxe6 fxe4 14. cxd6 Nxd6 15. Be3 {LiveBook: 12 Games} Kh7 (15... Nef5 16. Bc5 Kh7 17. Rc1 {½-½ (17) Starke,R (2604)-Blanco Gramajo,C (2538) ICCF email 2015}) 16. Qc2 Qc8 {The position is equal.} 17. Nb5 Nxb5 18. Bxb5 Qxe6 19. Qxc7 $146 ({Predecessor:} 19. Qxe4 Qd5 {0-1 (53) Rehtman,P (2054)-Klochan,P (2124) ICCF email 2009}) 19... Nd5 20. Qxb7 {[#] Bc4 is the strong threat.} Rab8 21. Qc6 Qxc6 22. Bxc6 Nxe3 23. fxe3 Rxb4 24. Rfb1 Rfb8 {[#]} 25. Bxe4 $1 {[%mdl 512]} Rxb1+ (25... Rxe4 26. Rxb8) 1/2-1/2

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.19"]
[Round "7"]
[White "Shtembuliak, Evgeny"]
[Black "Kiewra, Keaton"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2487"]
[BlackElo "2364"]
[Annotator "TA"]
[PlyCount "46"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,46,7,14,-12,0,-24,-11,-29,-25,-31,25,27,248,245,243,245,266,242,317]} 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 c5 7. Nf3 cxd4 8. cxd4 Bb4+ 9. Bd2 Bxd2+ 10. Qxd2 O-O 11. Bc4 b6 12. O-O Bb7 13. Rfe1 Nd7 14. Rad1 Rc8 {D41: Queen's Gambit Declined: Semi-Tarrasch with 5 cxd5} 15. Bd3 (15. Bb3 Re8 16. h3 Nf6 17. Qf4 Nh5 18. Qh2 h6 19. d5 exd5 20. e5 g6 21. Nd4 Ng7 22. Nb5 {½-½ (54) Mamedyarov,S (2820)-Ding,L (2804) Batumi 2018}) 15... Qc7 {[#] LiveBook: 3 Games} 16. Qg5 $146 ({Predecessor:} 16. e5 Rfd8 17. Qf4 Nf8 18. h4 Qe7 19. h5 h6 20. Re3 Rc7 21. Be4 Bxe4 22. Rxe4 {1-0 (39) Salem,A (2656)-Adly,A (2599) Doha 2016}) 16... h6 {The position is equal.} 17. Qh4 (17. Qe3 {keeps more tension.} Rfd8 18. a4 Qc3 19. a5 bxa5 20. Rc1) 17... Nf6 18. Re3 Qd8 19. h3 Rc3 (19... Qe8 $15) 20. d5 $11 Nd7 $2 {[#]} ({Reject} 20... exd5 $6 21. e5 $16 (21. exd5 Rc5 $15)) (20... Rc5 $11 {and Black is okay.}) 21. Qxd8 $1 $18 Rxd8 {[#]} 22. dxe6 $1 {Threatens to win with Bb5.} fxe6 23. Bb5 $1 {[%csl LRc3,LRd7][%mdl 64] Discovered Attack} Rxe3 1-0

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.19"]
[Round "7"]
[White "Patel, Advait"]
[Black "Balakrishnan, Praveen"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2467"]
[BlackElo "2409"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,92,28,27,31,18,25,25,12,18,16,2,2,5,5,0,16,0,0,0,0,0,0,-9,0,0,0,-5,-5,-7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-438,-473,-871,-822,-864,-856,-756,-730,-29967,-29968,-29970,-29972,-29972,-29973,-29973,-29974,-29977,-29978,-29978,-29978]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Ne7 6. O-O c5 7. dxc5 Nec6 {B12: Caro-Kann: Advance Variation} 8. Be3 Nd7 9. c4 dxc4 10. Na3 Bxc5 11. Bxc5 Nxc5 12. Nxc4 {LiveBook: 37 Games. Nd6+ is the strong threat.} O-O 13. Qc1 Nd3 14. Bxd3 Qxd3 15. Rd1 {[#]} Qc2 $146 16. Qxc2 Bxc2 17. Rd2 Be4 18. Nd4 Bd5 19. Ne3 Nxe5 20. Nxd5 exd5 21. Nf5 Rfd8 22. Rad1 g6 23. Ne3 Rac8 24. Rxd5 Rxd5 25. Rxd5 Nc4 26. Nxc4 Rxc4 $11 {[%mdl 4096] Endgame KR-KR} 27. g3 Rc2 28. Rb5 b6 29. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} Kg7 30. a5 Rc5 31. Rxc5 bxc5 {KP-KP} 32. Kf1 {White wants to play Ke2.} Kf6 33. Ke2 {next Kd3 is good for White.} Ke5 34. Kd3 Kd5 35. Kc3 c4 36. a6 $1 Kc5 37. Kd2 $2 {[%mdl 8192]} (37. g4 $11 {and White has nothing to worry.}) 37... Kb4 $1 $19 38. Kc2 (38. Ke3 $142 c3 39. bxc3+ Kxc3 40. Ke2) 38... h5 39. f4 f6 {[%cal Bf7f6,Bf6f5][%mdl 32]} 40. h3 {[#]} h4 $1 {[%cal Rh4g3][%mdl 512]} 41. gxh4 {[#]} f5 $1 {Black mates.} 42. h5 gxh5 43. h4 {[#]} Kb5 $1 {[%cal Rb5a6]} 44. Kc3 Kc5 45. Kd2 Kd4 46. Kc2 Ke4 {Accuracy: White = 63%, Black = 81%.} 0-1

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.19"]
[Round "7"]
[White "Kevlishvili, Robby"]
[Black "Gurevich, Dmitry"]
[Result "0-1"]
[ECO "B65"]
[WhiteElo "2451"]
[BlackElo "2393"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,108,0,59,14,24,10,23,12,10,11,47,-73,0,-101,-104,-131,-120,-127,-131,-133,-126,-137,-129,-276,-266,-263,-262,-254,-193,-186,-183,-179,-137,-170,-156,-198,-130,-125,-135,-187,-182,-181,-166,-223,-179,-293,-313,-553,-554,-29983,-29984,-29984,-29985,-29983,-5539,-2512,-413,-413,-332,-404,-401,-571,-561,-555,-556,-484,-481,-572,-393,-544,-544,-542,-535,-589,-566,-2001,-1823,-4325,-2177,-1052,-866,-29985,-29986,-29986,-29987,-29987,-29988]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f4 Nxd4 10. Qxd4 Qa5 11. Be2 h6 {B65: Sicilian: Richter-Rauzer: 7...Be7 8 0-0-0 0-0 9 f4 Nxd4} (11... e5 12. Qe3 exf4 13. Bxf4 Be6 14. a3 Rac8 15. Nb5 Ng4 16. Qg3 {1-0 (16) Ortiz Suarez,I (2565)-Inkiov,V (2459) Les Sables d'Olonne 2017}) 12. h4 e5 {LiveBook: 3 Games} (12... hxg5 $2 13. hxg5 Nh7 14. Qf2 $18) (12... Rd8 $11) 13. Qf2 exf4 $1 {The position is equal.} 14. Bxf4 Be6 $1 15. Bxd6 Bxd6 16. Rxd6 Rac8 {Threatens to win with ...Rxc3.} 17. Qd4 $146 (17. Qg3 $14) ({Predecessor:} 17. Qg3 Rc5 18. Rhd1 Rfc8 19. R6d4 Rxc3 20. bxc3 Rxc3 {½-½ (58) Konci,E-Lindblom,P Leipzig 1960}) 17... Bxa2 ({Black should try} 17... Ne8 $1 $17 {[%cal Re8d6]} 18. Rxe6 fxe6) 18. Rxf6 (18. Rf1 $11 Be6 19. e5) 18... gxf6 $17 19. Rh3 Be6 $1 20. Rg3+ Kh7 {aiming for ...Qa1+.} 21. Qxf6 {[%csl Gg3][%cal Rf6g7]} Rg8 22. Rxg8 Rxg8 23. Bd3 (23. Bf3 $17 {might work better.}) 23... Rxg2 $19 ({Not} 23... Qa1+ 24. Nb1 $11) 24. e5+ Kg8 25. Qxh6 {And now Bh7+ would win.} Rg7 26. Qf6 Rg1+ 27. Kd2 Qb6 28. b3 Rg2+ 29. Kc1 {[#]} Qg1+ (29... Qe3+ $1 $19 30. Kb1 Rg1+ 31. Ka2 Qb6) 30. Kb2 $17 Qd4 {Hoping for ...Qxd3.} 31. Qf3 {[#]} (31. Kb1 $17) 31... Rf2 $1 $19 {[%cal Rf2f3]} 32. Qg3+ Kf8 33. Bh7 (33. h5 {keeps fighting.} Qf4 34. Qxf4 Rxf4 35. h6) 33... b5 $36 {[%cal Bb7b5,Bb5b4][%mdl 2080] Black is in control.} 34. Ka2 (34. Qd3 $142 Qxd3 35. Bxd3) 34... b4 35. Na4 $2 (35. Nb5 Qc5 36. Qd3) 35... Rf1 {[%csl Gd4][%cal Rf1a1]} 36. Qg8+ Ke7 {[%csl Gd4][%cal Rf1a1]} 37. Qg5+ Ke8 {[%csl Gd4][%cal Rf1a1]} 38. Nb2 Qc5 (38... Qd5 $142 39. Na4 Qd1 40. Qg8+ Ke7 41. Qg5+ Kd7 42. Nc5+ Kc6 43. Qg2+ Kxc5 44. Qxf1 Qxf1 45. Kb2 Bf5 46. Bxf5 Qxf5 47. Kc1 Qxe5 48. Kb1 Kd4 49. Kb2 Qa5 50. Kc1 Kc3 51. Kd1 Qe5 52. h5 Qe3 53. h6 Qd2#) 39. Na4 Qg1 (39... Qc6 $142 {( -> ...Qxa4+)} 40. Kb2 Qd5) 40. Qxg1 Rxg1 {[%mdl 4096] Endgame KRB-KBN} 41. Nc5 Rh1 42. Na6 (42. Bd3 {was called for.}) 42... Rxh4 43. Bd3 Ke7 44. Kb2 Bc8 45. Nc5 Rh5 46. Bc4 a5 {[%cal Ba7a5,Ba5a4,Ba4a3][%mdl 32]} 47. Nd3 Rh4 48. Nc5 Bf5 49. Nb7 {[#]} a4 $1 50. Nd6 (50. bxa4 Rxc4) 50... a3+ 51. Ka2 Bxc2 52. Bxf7 Rh2 {Black mates.} 53. Ka1 Rh1+ 54. Ka2 Bb1+ {Accuracy: White = 34%, Black = 75%.} 0-1

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.19"]
[Round "7"]
[White "Boros, Denes"]
[Black "Bivol, Alina"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "2442"]
[BlackElo "2403"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,65,0,-21,33,13,11,-5,15,13,64,74,114,106,114,111,101,99,232,213,213,195,187,187,164,156,270,283,378,227,353,197,197,184,422,420,570,569,562,549,548,548,548,548,540,355,650,645,650,643,631,573,670,667,655,650]} 1. d4 Nf6 2. Nf3 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Nb5 {D00: 1 d4 d5: Unusual lines} (6. Be2 c5 7. O-O cxd4 8. exd4 Bg4 9. h3 Bxf3 10. Bxf3 Nc6 11. Ne2 b5 12. c3 e6 13. a3 a5 14. Nc1 b4 15. a4 Ne4 16. Bxe4 dxe4 {½-½ (85) Carlsen,M (2837)-Ding,L (2774) Saint Louis 2017}) 6... Na6 7. c3 {LiveBook: 3 Games} c5 ({Better is} 7... Nh5 $11) 8. Be2 {[%cal Bf1e2,Be2c4,Bc4d5][%mdl 32] White is slightly better.} Bd7 9. h3 $146 ({Predecessor:} 9. a4 Qb6 10. Bc7 Nxc7 11. a5 Qxb5 12. Bxb5 Bxb5 13. Ne5 Nd7 14. Nxd7 Bxd7 {1-0 (44) Vukotic Jovsic,D (2010)-Barroso Barroso,J (1853) San Sebastian 2012}) 9... c4 10. a4 Qb6 (10... Bxb5 $11 11. axb5 Nc7) 11. b3 $14 Ne4 12. bxc4 dxc4 13. Bxc4 Rac8 {[#]} 14. Qb3 $1 Qa5 (14... Nac5 $16 15. dxc5 Nxc5) 15. O-O $18 Nb8 16. Bd5 Bc6 17. Rfc1 a6 18. Bxc6 Rxc6 (18... Nxc6 $16 {keeps fighting.} 19. Qc2 f5) 19. Qb1 f5 20. c4 {[%cal Bc3c4,Bc4c5][%mdl 32]} Nd7 (20... g5 $142) 21. Na3 (21. Na7 $142 Rb6 22. Qa2) 21... e5 {[#]} 22. Bh2 $1 Rb6 $2 (22... Qb6 {was called for.} 23. Qa2 (23. Nxe5 Nxe5 24. Qxb6 Rxb6 $16) (23. dxe5 Rcc8 $16) 23... Kh8) 23. Qa2 {Strongly threatening c5+.} Qxa4 24. c5+ Rb3 25. Rcb1 Qxa3 26. Qxa3 ({Not} 26. Qxb3+ Qxb3 27. Rxb3 exd4 $16) 26... Rxa3 27. Rxa3 Rd8 28. Ra5 g5 $2 (28... f4 29. Ra3 Nf8) 29. Bxe5 {White is clearly winning.} Bxe5 30. Nxe5 Nxe5 31. dxe5 {[%cal Bd4e5,Be5e6][%mdl 32]} Rd7 32. e6 Re7 33. Rb6 {Accuracy: White = 66%, Black = 27%.} 1-0

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.19"]
[Round "7"]
[White "Niemann, Hans"]
[Black "Ali Marandi, Cemil Can"]
[Result "1-0"]
[ECO "A84"]
[WhiteElo "2439"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,119,44,5,12,0,18,13,43,36,78,29,35,33,22,22,17,17,33,2,77,58,64,1,113,110,129,95,93,95,97,104,103,98,102,106,118,95,208,167,208,208,195,163,162,186,195,182,180,152,182,182,182,102,164,148,150,147,156,150,148,95,110,110,163,154,201,203,232,227,230,172,348,337,442,419,550,461,555,431,397,300,491,402,372,359,362,358,366,370,370,370,370,370,370,352,361,354,361,324,296,0,360,353,353,353,343,333]} 1. d4 f5 2. c4 Nf6 3. Nf3 g6 4. Nc3 Bg7 5. Bf4 O-O 6. e3 d6 7. h3 Qe8 {A85: Dutch Defence: 2 c4 Nf6 3 Nc3} (7... h6 8. Be2 Qe8 9. d5 Na6 10. Bh2 Bd7 11. O-O c6 12. dxc6 bxc6 13. Qc2 Nc5 14. Rfd1 g5 15. Rab1 {1-0 (42) Karjakin,S (2783)-Nepomniachtchi,I (2751) chess.com INT 2017}) 8. Be2 {LiveBook: 3 Games} Nc6 9. O-O e5 {The position is equal.} 10. Bh2 h6 11. c5 $146 ({Predecessor:} 11. Rc1 g5 12. Nb5 Qe7 {1-0 (23) Vera Aranjuelo,J-Martinez Catalan,F (2187) Zaragoza 2003}) 11... a6 12. Bc4+ Kh7 13. cxd6 cxd6 14. Nd5 Nxd5 15. Bxd5 Bd7 16. Qb3 b5 (16... Ne7 $11) 17. Rac1 $36 {[%mdl 2048] White is pushing.} Ra7 18. Qc3 ({White should play} 18. h4 $14) 18... Rc7 (18... Ne7 $11 {keeps the balance.} 19. Bb3 e4) 19. Qa3 $16 Rc8 20. Rfe1 a5 21. Qxd6 {[%cal Rf3e5]} Rf6 22. Qa3 {[%cal Rf3e5]} Bf8 23. Qb3 a4 24. Qd1 {[%cal Rd4e5]} e4 {[#] Threatens to win with ...Nb4.} 25. Ne5 a3 (25... Nb4 $16 {is a better defense.}) 26. Qe2 Bd6 {[%cal Rc6e5]} 27. Bxc6 Bxc6 28. bxa3 Bxa3 29. Rc2 ({Don't play} 29. Nxc6 $6 Bxc1 30. d5 Rfxc6 $11) 29... Bb7 30. Rxc8 Bxc8 31. Qc2 Be6 32. Qc7+ Qe7 33. Rc1 (33. Qb8 $18) 33... Qxc7 (33... Kg8 $16 {was called for.}) 34. Rxc7+ $18 Kg8 35. Ra7 Bd6 36. a3 g5 37. Ra6 (37. Ra8+ $142 Kh7 38. Ra5) 37... Bd5 {aiming for ...Bxe5.} 38. Ra5 f4 (38... Bxe5 $16 39. Bxe5 Rb6) 39. Rxb5 Be6 40. Rb6 Bd5 {And now ...Bxe5 would win.} 41. Nd7 Re6 42. Nc5 fxe3 $2 (42... Bxc5 43. dxc5 fxe3 44. fxe3 Rxb6 45. cxb6 Kf7) 43. Nxe6 (43. Bxd6 e2 $14) 43... Bxh2+ {[%mdl 4096] Endgame KRN-KB} 44. Kf1 Bc4+ 45. Ke1 e2 {If only Black now had time for ...e3....} 46. Nc5 e3 47. Ne4 Bd3 $2 (47... Bc7 48. Rb4 exf2+ 49. Kxf2 Bd3) 48. Nf6+ Kf8 {Strongly threatening ...exf2+.} 49. Ng4 Bc7 50. Rb4 exf2+ 51. Nxf2 Ba6 52. Ra4 Bb5 53. Ra8+ Ke7 54. Ra7 Kd8 55. Ne4 Bd3 56. Ra8+ Ke7 57. Ra7 Kd8 $1 {[#]} 58. Rxc7 $1 Kxc7 59. Nc3 Kc6 60. Kd2 {Accuracy: White = 66%, Black = 42%.} ({Weaker is} 60. Nxe2 Kd5 $18) 1-0

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.20"]
[Round "8"]
[White "Ali Marandi, Cemil Can"]
[Black "Gurevich, Dmitry"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2552"]
[BlackElo "2393"]
[Annotator "TA"]
[PlyCount "37"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,37,34,8,77,83,75,79,89,58,60,59,40,67,50,60,78,41,265,264,258,239,1425,1402]} 1. d4 d5 2. Bf4 c5 3. e3 Nc6 4. c3 e6 5. Nd2 Bd6 6. Bg3 Nf6 7. Ngf3 Bxg3 8. hxg3 Qd6 9. Bb5 {LiveBook: 56 Games} a6 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} (9... O-O $11) (9... Bd7 10. Bxc6 Bxc6 11. Ne5 Qc7 12. Qf3 h6 13. Qf4 Qe7 14. g4 Nh7 15. Qg3 Rg8 16. O-O Nf6 17. Rac1 {1-0 (29) Carlsen,M (2857)-Ghaem Maghami,E (2566) Baku 2016}) 10. Bxc6+ $16 bxc6 11. Qc2 Rb8 $146 {White is better.} ({Predecessor:} 11... cxd4 12. cxd4 h6 13. Ne5 Bd7 14. g4 Ke7 15. f3 Rab8 16. Nb3 Qb4+ 17. Kf2 {½-½ (45) Claramunt Bassegoda,M (1852)-Gonzalez Alonso,M (1845) Barcelona 2018}) 12. Ne5 cxd4 13. cxd4 c5 $1 14. g4 cxd4 15. exd4 Ne4 16. Rc1 {[#] Threatens to win with Qxc8+.} Nxd2 $2 ({Don't blunder} 16... Qb4 $2 17. Qc6+ Kf8 18. Qxc8+ Rxc8 19. Rxc8+ Ke7 20. Nc6+ {[%mdl 64] Double Attack} Kf6 21. Nxb4 $18) (16... f6 $14 17. Nc6 (17. Nxe4 dxe4 18. Ng6 Rg8 $11) 17... Rb6) 17. Kxd2 $18 ({Not} 17. Qxd2 O-O $14) 17... Bd7 18. Ke3 f6 $2 (18... Ke7 19. Qc7 Rhc8 20. Qxd6+ Kxd6) 19. Rxh7 1-0

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.20"]
[Round "8"]
[White "Niemann, Hans"]
[Black "Boros, Denes"]
[Result "1/2-1/2"]
[ECO "E00"]
[WhiteElo "2439"]
[BlackElo "2442"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,71,31,31,50,13,55,16,14,22,46,25,61,24,69,70,52,62,58,0,0,-4,0,0,1,-15,0,-16,-16,-16,-17,-62,-17,-13,-17,-24,0,0,0,-7,-7,-6,0,-15,0,0,0,0,0,0,0,0]} 1. d4 e6 2. c4 Bb4+ 3. Bd2 c5 4. Bxb4 cxb4 5. Nf3 Nf6 6. g3 O-O 7. Bg2 d6 8. O-O a5 9. a3 Na6 10. axb4 {E11: Bogo-Indian} (10. Nbd2 Qc7 11. Rc1 Rd8 12. e3 b6 13. Ne1 Bb7 14. Bxb7 Qxb7 15. Nd3 bxa3 16. bxa3 h5 17. Qf3 Qxf3 18. Nxf3 {½-½ (28) Xiong,J (2634)-Adhiban,B (2655) chess.com INT 2018}) 10... Nxb4 11. Nc3 Qc7 12. b3 {LiveBook: 10 Games. White is slightly better.} b6 $146 ({Predecessor:} 12... Bd7 13. Rc1 Rac8 14. e4 Rfd8 15. h3 e5 16. Qe2 Re8 17. Qe3 Qb6 {1-0 (41) Hamitevici,V (2430)-Rombaldoni,A (2539) Reykjavik 2015}) 13. Ne1 (13. e4 {seems wilder.} e5 14. Nb5 Qe7 15. Re1 Bg4 16. h3) 13... Rb8 14. Nc2 Nxc2 15. Qxc2 Rd8 16. Qd2 Qe7 17. Qg5 Nd5 18. Qxe7 Nxe7 19. d5 exd5 20. cxd5 ({Better is} 20. Bxd5 $14 Nxd5 21. Nxd5) 20... Bd7 $11 21. Rfc1 Kf8 22. e4 Rdc8 23. Bf1 g5 24. f4 gxf4 25. gxf4 Rc5 26. Na4 Bxa4 27. Rxc5 bxc5 28. Rxa4 $15 {[%mdl 4096] Endgame KRB-KRN} Ng6 29. Rxa5 {The position is equal.} Nxf4 30. Bc4 Ng6 31. Kf2 Ne5 32. Ke3 Rb4 33. Kf4 Nxc4 34. bxc4 Rxc4 35. Ra8+ Ke7 36. Ra7+ {Accuracy: White = 44%, Black = 45%.} 1/2-1/2

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.20"]
[Round "8"]
[White "Balakrishnan, Praveen"]
[Black "Shtembuliak, Evgeny"]
[Result "1/2-1/2"]
[ECO "C09"]
[WhiteElo "2409"]
[BlackElo "2487"]
[Annotator "TA"]
[PlyCount "33"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,23,14,0]} 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6 6. Bb5 Qe7+ 7. Be2 Nf6 {C09: French Tarrasch: 3...c5 4 exd5 exd5 5 Ngf3 Nc6} 8. O-O Qc7 9. Re1 cxd4 10. Bb5+ Be7 11. Qe2 a6 12. Bxc6+ {LiveBook: 6 Games} {Predecessor:} bxc6 $146 13. Nxd4 Ra7 14. Qe5 c5 15. Nf5 Qxe5 16. Rxe5 Bxf5 17. Rxf5 {½-½ (41) Mamedov,R (2678)-Harikrishna,P (2733) Antalya 2017} 1/2-1/2

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.20"]
[Round "8"]
[White "Bivol, Alina"]
[Black "Patel, Advait"]
[Result "1/2-1/2"]
[ECO "C79"]
[WhiteElo "2403"]
[BlackElo "2467"]
[Annotator "TA"]
[PlyCount "128"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,128,8,5,0,18,0,0,-22,-6,-11,-22,-20,0,-24,0,-28,-24,-30,0,15,24,-13,-3,-44,-41,-41,-22,-12,-18,-35,-2,-3,-6,-10,-13,-29,-22,-36,-27,-33,-17,-17,-11,-11,-12,-34,-23,-53,-21,-60,-80,-75,-60,-60,-60,-62,-61,-64,-60,-109,-109,-109,-55,-90,-63,-93,-54,-94,-56,-105,-105,-105,-105,-105,-105,-105,-105,-144,-112,-112,-112,-112,-112,-112,-112,-112,-112,-112,-82,-112,-112,-112,-112,-113,-113,-120,-77,-78,-81,-98,-85,-87,-73,-72,0,-91,-84,-94,-56,-56,-56,-56,-56,-56,-56,-56,-70]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 {[%cal Bf1b5,Bb5a4,Ba4b3][%mdl 32]} a6 4. Ba4 Nf6 5. O-O d6 6. d3 b5 {C79: Ruy Lopez: Steinitz-type lines with 3...a6 4 Ba4 Nf6 5 0-0 d6} 7. Bb3 Na5 {LiveBook: 43 Games} 8. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1e3,Be3d5][%mdl 32]} (8. Re1 Nxb3 9. axb3 c5 10. Bg5 Be7 11. Nc3 Bb7 12. Bxf6 Bxf6 13. Nd5 Bxd5 14. exd5 {½-½ (65) Vachier Lagrave,M (2789)-Carlsen,M (2855) Paris 2016}) 8... g6 {The position is equal.} 9. Re1 Bg7 10. Nf1 O-O 11. Bd2 Nxb3 12. axb3 h6 $146 ({Predecessor:} 12... Nh5 13. b4 f5 {1-0 (21) Fischer,A-Volz,H Germany 1983}) 13. h3 Re8 14. Ne3 Bb7 15. c4 Nh5 16. Nd5 Nf6 17. Ba5 Rc8 18. Qd2 Nxd5 19. cxd5 f5 20. Rec1 Qd7 21. Rc2 c6 22. Rac1 Ba8 ({Wrong is} 22... cxd5 $2 23. Rc7 $18) 23. dxc6 Rxc6 24. Nh4 Rxc2 25. Qxc2 Qe7 $36 {[%mdl 2048] Black fights for an advantage.} (25... Bf6 $5 26. Nf3 $8 (26. Nxg6 $2 fxe4 27. dxe4 Qf7 $19) 26... Qe6 $15) 26. Nf3 Bb7 {[%cal Ba8b7,Bb7c8,Bc8e6][%mdl 32]} 27. Qe2 {[#] Threatens to win with Rc7.} Rc8 28. Rxc8+ Bxc8 29. Qe3 Qb7 30. Nd2 Be6 31. Qb6 Qxb6 32. Bxb6 $15 {[%mdl 4096] Endgame KBB-KBN} Kf7 33. Kf1 Ke7 34. Ke2 Kd7 35. b4 Kc6 36. Ba5 Bf6 37. f3 d5 (37... h5 $17 38. Kf2 Bh4+ 39. Kf1 Bf6) 38. Kd1 Be7 39. Kc2 h5 40. Kd1 Bh4 41. exd5+ Bxd5 42. Ke2 Bg5 43. Kd1 Bf6 44. Ke2 Be6 45. Nb1 Bf7 46. Nd2 h4 47. Kd1 Bg8 48. Ke1 Be6 49. Ke2 Bd5 50. Ke1 Bg5 51. Ke2 Be7 52. Ke1 Kd7 53. Ke2 Ke6 54. Ke1 g5 55. Kf2 Kf7 56. Kf1 Kg6 57. Kf2 Kh5 58. Nf1 Kg6 59. Nd2 $1 Bd6 60. Kf1 g4 61. fxg4 {Black is slightly better.} fxg4 62. hxg4 Kg5 63. Kf2 $1 Kxg4 64. Nf1 {[#] Hoping for Ne3+.} Bc6 {Accuracy: White = 53%, Black = 52%.} 1/2-1/2

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.20"]
[Round "8"]
[White "Kiewra, Keaton"]
[Black "Kevlishvili, Robby"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2364"]
[BlackElo "2451"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,69,27,25,33,42,60,43,60,37,43,33,51,59,88,52,96,102,85,83,104,92,94,99,97,93,98,52,65,58,58,61,77,58,58,58,58,58,59,-92,58,67,66,59,227,227,227,208,243,243,382,385,616,609,733,691,572,366,519,491]} 1. Nf3 d5 2. c4 c6 3. e3 Nf6 4. Nc3 a6 5. d4 Bf5 6. Ne5 {D15: Slav Defence: 4 Nc3 a6 and gambit lines after 4 Nc3 dxc4} (6. Bd3 Bxd3 7. Qxd3 e6 8. O-O Bb4 9. Bd2 O-O 10. Nxd5 Nxd5 11. cxd5 Bxd2 12. Qxd2 exd5 13. Ne5 Re8 {½-½ (46) Vallejo Pons,F (2707)-So,W (2780) Leon 2018}) 6... Nbd7 7. Qb3 {LiveBook: 73 Games} Rb8 8. Nxd7 {White is slightly better.} Bxd7 $146 ({Predecessor:} 8... Qxd7 9. cxd5 Nxd5 10. Bxa6 Nxc3 11. bxc3 b5 12. c4 Rb6 13. d5 Rxa6 14. dxc6 Rxc6 15. cxb5 Rb6 16. a4 e5 17. a5 {0-1 (17) De Marchi,O (2283)-Simon,R (2113) Berlin 2015}) 9. cxd5 Nxd5 10. e4 Nxc3 11. bxc3 {Black must now prevent Bf4.} b5 12. Bf4 Rc8 13. Be2 e6 14. a4 Be7 15. O-O O-O 16. axb5 axb5 17. Ra7 Be8 18. Rd1 Bd6 19. Bg3 Bxg3 20. hxg3 c5 21. dxc5 ({Don't blunder} 21. Bxb5 $2 Qb6 $19) 21... Qg5 22. Qb4 Qxc5 23. Qxc5 Rxc5 24. Rd8 $1 Bc6 25. Rxf8+ $1 Kxf8 $14 {[%mdl 4096] Endgame KRB-KRB} 26. Rc7 g6 27. f4 {Strongly threatening e5.} Rxc3 $2 {[#]} (27... b4 $14 28. cxb4 Rc2) 28. Bxb5 $1 $18 {[%mdl 576] Pin} Rxg3 (28... Bxb5 29. Rxc3) 29. Bxc6 $14 {KRB-KR} Rg4 30. f5 exf5 (30... gxf5 $142 31. exf5 exf5) 31. Bd5 $18 Ke8 (31... h6 $142 32. exf5 gxf5 33. Rxf7+ {[%mdl 64] Double Attack} Kg8) 32. e5 {[%cal Be4e5,Be5e6][%mdl 32]} Rd4 33. Bxf7+ Kd8 34. Ra7 Re4 (34... Rd7 $142) 35. e6 {Accuracy: White = 93%, Black = 50%.} 1-0

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.21"]
[Round "9"]
[White "Shtembuliak, Evgeny"]
[Black "Bivol, Alina"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2487"]
[BlackElo "2403"]
[Annotator "TA"]
[PlyCount "41"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,41,4,3,0,0,0,0,0,182,172,320,0,0,0,288,0]} 1. Nf3 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 b6 5. Bg2 Bb7 6. O-O c5 7. c4 O-O 8. Nc3 Nc6 9. d4 Nxd4 10. Nxd4 Bxg2 11. Kxg2 cxd4 12. Qxd4 d5 {A30: Symmetrical English: Double Fianchetto and Hedgehog} 13. cxd5 e6 14. Rad1 Nxd5 {LiveBook: 3 Games. The position is equal.} 15. Qxg7+ Kxg7 16. Nxd5+ Kh6 17. Nf6 Qc8 $2 {[#]} (17... Qc7 $11) 18. Ng4+ $146 {[%mdl 1024] White has strong compensation.} ({Predecessor:} 18. Rd4 Kg7 19. Rh4 h6 20. Ne8+ Kh7 21. Nf6+ {½-½ (21) Perelshteyn,E (2442)-Kudrin,S (2542) Kapuskasing 2003}) 18... Kh5 (18... Kg5 {was worth a try.} 19. Rd4 Rd8 20. h4+ Kh5 21. Nf6+ {[%mdl 64] Double Attack} Kh6 22. Ng4+ Kh5 23. Nf6+ {[%mdl 64] Double Attack} Kh6 24. Ng4+ Kh5) 19. Nf6+ Kh6 {And now ...g5 would win.} 20. Ng4+ Kh5 $1 {[%cal Rh5g4] [#]} 21. Nf6+ $2 (21. Bf6 $1 $18) 1/2-1/2

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.21"]
[Round "9"]
[White "Patel, Advait"]
[Black "Niemann, Hans"]
[Result "1-0"]
[ECO "A07"]
[WhiteElo "2467"]
[BlackElo "2439"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,63,28,22,46,14,18,3,10,7,43,53,94,91,203,191,212,202,188,172,177,187,521,520,572,564,607,603,594,555,583,513,488,495,753,708,814,568,570,564,566,551,547,418,399,377]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. O-O Bg4 5. c4 Nbd7 6. cxd5 cxd5 7. Nc3 e6 8. h3 {A11: English Opening: 1...c6} (8. d3 Bc5 9. h3 Bh5 10. e4 dxe4 11. dxe4 O-O 12. Qe2 Bxf3 13. Bxf3 Ne5 14. Rd1 Qb6 15. Bg2 Bd4 16. Bd2 {0-1 (40) Wagner,D (2564)-Nakamura,H (2781) Douglas 2017}) 8... Bh5 9. d3 Be7 10. e4 O-O 11. g4 {LiveBook: 5 Games} Bg6 {[%cal Rd5e4]} 12. Nh4 {[%cal Re4d5]} (12. g5 $5 {[%cal Rg5f6]} Ne8 13. exd5 $14) 12... dxe4 13. Nxg6 hxg6 14. dxe4 {[%cal Bd3e4,Be4e5][%mdl 32]} Ne8 $146 ({Predecessor:} 14... e5 15. f4 Re8 16. f5 gxf5 17. exf5 {1-0 (28) Vogel,R (2475)-Hansen,M (2414) Lueneburg 2017}) 15. Qe2 Bf6 16. Rd1 $36 {[%mdl 2048] Strongly threatening Qb5. Keeping Black busy.} Qe7 {[#]} (16... Bxc3 $16 17. bxc3 Qe7) 17. e5 $1 $18 {[%cal Re5f6]} Bh4 18. Bxb7 Rd8 19. Bc6 f5 {intending ...fxg4.} 20. exf6 gxf6 $2 {[#]} (20... Nexf6 21. Bf4 Nb6 22. Rxd8 Rxd8) 21. Nd5 $1 {[%mdl 512]} Qh7 (21... exd5 22. Qxe7) 22. Nf4 Rf7 23. Qxe6 Nc7 24. Qd6 Ne8 25. Qd3 f5 {Now ...Ne5 and Black clings on.} 26. Bd5 Ne5 (26... Nf8 $142 27. Be3 Rxd5 28. Nxd5 Bd8) 27. Qe2 fxg4 28. Bxf7+ Qxf7 29. Rxd8 Nf3+ 30. Kg2 Bxd8 31. Qe6 Nh4+ 32. Kh1 {Accuracy: White = 63%, Black = 25%.} 1-0

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.21"]
[Round "9"]
[White "Kevlishvili, Robby"]
[Black "Balakrishnan, Praveen"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "2451"]
[BlackElo "2409"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,59,54,58,51,50,29,27,12,44,36,41,18,29,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Qc7 6. Ne2 Bg4 7. O-O {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack} e6 8. Qe1 Bd6 (8... Bxe2 9. Qxe2 Nf6 10. Nd2 Bd6 11. g3 O-O 12. f4 a6 13. Nf3 b5 14. a3 Ne7 {½-½ (52) Le,Q (2715)-Nisipeanu,L (2661) Batumi 2018}) 9. f3 Bh5 10. Qh4 Bg6 11. Bxg6 fxg6 {LiveBook: 13 Games} 12. Nf4 Kf7 13. Nd3 Nf6 {[#]} 14. Be3 $146 ({Predecessor:} 14. f4 Rhf8 {½-½ (51) Svetushkin,D (2546)-Stanciu,A (2325) Corund 2017}) 14... Rhf8 15. Nd2 Kg8 16. Rae1 Rae8 17. Bf4 (17. f4 {keeps more tension.} Na5 18. Qh3 Nc4 19. Nf3 Nxe3 20. Rxe3 Bxf4 21. Rxe6 g5 22. Nxf4 Qxf4 23. Rxe8 Rxe8 24. Ne5) 17... Bxf4 {The position is equal.} 18. Qxf4 Qxf4 19. Nxf4 e5 20. dxe5 Nxe5 21. Re3 g5 22. Nd3 Nxd3 23. Rxd3 Re2 24. Rf2 Re1+ 25. Rf1 Rfe8 26. Nb3 R1e2 27. Rf2 Re1+ 28. Rf1 R1e2 29. Rf2 Re1+ 30. Rf1 {Accuracy: White = 57%, Black = 85%.} 1/2-1/2

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.21"]
[Round "9"]
[White "Boros, Denes"]
[Black "Ali Marandi, Cemil Can"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "2442"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,72,48,-1,32,17,33,20,25,17,33,-66,-68,-168,-155,-197,-43,-122,-102,-27,-39,-95,0,0,0,0,0,0,0,0,0,0,0,0,5,0,0,0,1,0,6,0,0,0,0,0,0,-141,0,0,0,0,0,0,0,-29992,-29993,-29993,-29994]} 1. e4 e6 2. d3 c5 3. g3 Nc6 4. Bg2 g6 5. Ne2 Bg7 6. c4 {B20: Sicilian: Unusual White 2nd moves} d6 7. Nbc3 a6 (7... Nge7 8. O-O O-O 9. Rb1 b6 10. a3 Bb7 11. b4 Qd7 12. Bg5 h6 13. Be3 Nd4 14. f4 f5 15. Qd2 Kh7 16. Rbe1 Rae8 17. Bf2 Nec6 18. b5 Nxe2+ 19. Nxe2 Nd4 20. Nxd4 cxd4 21. exf5 gxf5 22. Bxb7 Qxb7 {0-1 (30) Dominguez Perez,L (2732)-Wojtaszek,R (2727) Huaian 2016}) 8. Be3 Nge7 9. O-O {LiveBook: 5 Games} b5 10. d4 cxd4 $146 ({Predecessor:} 10... b4) 11. Nxd4 bxc4 12. Nxc6 Nxc6 13. e5 (13. Qa4 $14 Bd7 14. Qxc4) 13... d5 $15 14. Nxd5 (14. f4 $15) 14... exd5 $19 15. Bxd5 Qc7 $2 (15... Bb7 $1 $19 16. f4 O-O) 16. Bc5 (16. Qa4 $15 Bd7 17. Qxc4) 16... Nxe5 17. Qa4+ (17. Qd4 $17) 17... Bd7 $11 18. Qa3 $1 {[#]} Bc6 ({Black should try} 18... Rc8 $1 $17 19. Bd6 Qb6) 19. Bd6 $1 {[%cal Rd6c7]} Qb7 20. Bxe5 Bxe5 21. Bxc6+ Qxc6 22. Rae1 f6 {White must now prevent ...Kf7.} 23. f4 O-O-O 24. fxe5 f5 25. Rc1 {And now Rf4 would win.} Rd2 {[%csl Gd2][%cal Rc6g2]} 26. Rf3 {aiming for Rxc4!} Kb7 27. Rf2 Rd4 $40 {[%mdl 128] White needs to defend precisely.} 28. Rf4 Rhd8 29. Rxd4 Rxd4 {[%mdl 4096] Endgame KQR-KQR} 30. Qe7+ Kb6 31. e6 {[#]} (31. Qf6 $11) 31... Rd6 ({Better is} 31... a5 $1 $17 32. b4 Rd2 33. Qc5+ Qxc5+ 34. bxc5+ Kxc5) 32. Re1 Qc5+ 33. Kf1 f4 34. gxf4 Qd5 {( -> ...Qh1+)} 35. Qf8 $2 {[%mdl 8192]} (35. Qxh7 {leads to mate.} Qf3+ 36. Kg1 Rd2 37. Qc7+ Kxc7 38. Re2 Rxe2 39. h4 Qg2#) (35. Qg5 $11 Qf3+ 36. Kg1) 35... Qh1+ {[%mdl 64] Double Attack} 36. Kf2 Rd2+ {[%mdl 64] Double Attack. Accuracy: White = 43%, Black = 59%.} 0-1

[Event "Saint Louis Invitational-A 2018"]
[Site "Saint Louis"]
[Date "2018.11.21"]
[Round "9"]
[White "Gurevich, Dmitry"]
[Black "Kiewra, Keaton"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2393"]
[BlackElo "2364"]
[Annotator "TA"]
[PlyCount "109"]
[EventDate "2018.11.16"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,109,24,31,10,49,21,21,21,21,17,21,18,36,6,2,0,14,10,13,0,3,0,4,5,18,0,12,-4,-7,-4,-8,-16,-2,-4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-18,-8,-26,-22,-19,-24,-52,0,-76,-72,-72,-50,-58,0,0,0,-83,-4,-4,0,0,0,0,0,-3,-2,-6,0,-8,-8,-71,-45,-46,-35,-65,-8,-8,-8,-8,-8,-8,-8,-8,0,-8]} 1. Nf3 g6 2. d4 Nf6 3. c4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. Bd2 O-O 7. Rc1 Nb6 8. Bg5 h6 9. Bf4 {D90: Grünfeld: 4 Nf3 Bg7 sidelines} (9. Bh4 g5 10. Bg3 c5 11. d5 e6 12. d6 Nd5 13. h4 g4 14. Ne5 Qxd6 15. e4 f5 16. exf5 Bxe5 {1-0 (33) Morozevich,A (2747)-Shirov,A (2720) Pamplona 2006}) 9... c6 10. e3 Bg4 11. Be2 N8d7 12. O-O Bxf3 13. Bxf3 e5 14. dxe5 (14. Bg3 {feels hotter.} h5 15. h3 exd4 16. exd4 Nf6 17. Qb3) 14... Nxe5 15. Be2 Qxd1 $146 ({Predecessor:} 15... Qe7 16. Qb3 {½-½ (48) Ingbrandt,J-Wiedenkeller,M (2465) Stockholm 1985}) 16. Rfxd1 g5 17. Bg3 f5 18. h3 f4 19. exf4 gxf4 20. Bh2 f3 21. Bxf3 Nxf3+ 22. gxf3 Rxf3 23. Kg2 Raf8 (23... Rf7 {is more complex.} 24. Re1 Rd8 25. Re2 Rdd7 26. Rcc2 a6) 24. Bg3 Bxc3 25. bxc3 Nc4 26. Rd4 b5 27. Rg4+ Kh7 28. Re1 R8f7 29. Re6 R3f6 30. Rge4 a5 31. Bh4 Rg7+ 32. Bg3 Rgf7 (32... Rxe6 {is interesting.} 33. Rxe6 Rg6 34. Re7+ Kg8 35. Kf3 Nd2+) 33. f4 a4 34. Rxf6 Rxf6 $11 {[%mdl 4096] Endgame KRB-KRN} 35. Re7+ Kg6 36. Kf3 Kf5 (36... Nd2+ $1 $15 37. Ke2 Nb1) 37. Bh4 (37. Re8 $11 {remains equal.}) 37... Rd6 $17 {[#] aiming for ...Rd3+.} 38. Rf7+ Kg6 39. Rc7 Kf5 (39... Re6 $15 40. Bf2 Nd2+ 41. Kg4 h5+ 42. Kh4 Rf6) 40. Rf7+ $11 Kg6 (40... Ke6 $11 41. Rf6+ Kd7) 41. Rc7 $17 Rd3+ (41... Re6 $17 42. Bf2 Nd2+ 43. Kg4 h5+ 44. Kh4 Rf6) 42. Ke4 $132 {[%mdl 2048] White puts up resistance} Rxh3 43. Rxc6+ Kh5 44. Bf6 Kg4 45. Bg7 {[#] Hoping for Rg6+.} Re3+ 46. Kd4 Re2 47. Bxh6 Rxa2 {Threatening ...Rd2+.} 48. Ra6 (48. f5 $11 {keeps the balance.}) 48... a3 {...Rb2 is the strong threat.} 49. Bf8 Kxf4 {And now ...Rd2+ would win.} 50. Bb4 Ra1 (50... Rd2+ $15 51. Kc5 a2 52. Kxb5 Ne3) 51. Kc5 {The position is equal.} Ke4 52. Kxb5 Kd5 53. Ra8 {Threatens to win with Rd8+.} a2 54. Rd8+ Ke6 {White must now prevent ...Na3+!} 55. Kxc4 {Accuracy: White = 64%, Black = 59%.} 1/2-1/2

