[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.06"]
[Round "1"]
[White "Onischuk, Alexander"]
[Black "Ipatov, Alexander"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2681"]
[BlackElo "2665"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,119,17,35,33,34,35,43,22,68,65,46,28,24,14,16,18,15,12,25,19,25,20,29,6,20,12,19,0,0,0,13,13,18,1,4,3,15,8,22,21,19,0,15,0,0,0,0,0,0,0,0,0,35,30,16,31,41,41,52,56,108,58,86,86,210,208,209,209,244,251,235,252,183,181,333,271,265,275,597,603,704,667,1256,1201,2173,2082,4638,4646,4037,3628,2593,3009,2888,2198,29971,29972,29974,29975,29974,29975,29979,29981,29981,29979,29979,29980,29982,29983,29983,29984]} 1. d4 g6 2. c4 Bg7 3. Nc3 e6 4. e4 Ne7 5. Nf3 d5 6. e5 {A40: Unusual replies to 1 d4} Nbc6 {LiveBook: 6 Games} 7. Be2 {[%cal Bf1e2,Be2d3,Bd3e4][%mdl 32]} h6 8. O-O {White is slightly better.} O-O 9. Re1 $146 ({Predecessor:} 9. Be3 Nf5 10. Qd2 dxc4 11. Bxc4 b6 12. Rfd1 {½-½ (52) Yilmaz,M (2557)-Malakhov,V (2717) Yerevan 2014}) 9... b6 10. cxd5 Nxd5 11. Nxd5 Qxd5 12. Bd3 Bb7 13. Be4 Qd7 14. Be3 Rab8 15. Qd2 Kh7 16. Rac1 Ne7 17. Qc2 Bxe4 18. Qxe4 Qd5 19. Qxd5 (19. Qc2 {is more complex.} Rfc8 20. b3 Qb7 21. b4 Nd5 22. Bd2) 19... Nxd5 20. Rc6 Rfd8 21. Rec1 a5 22. Kf1 Rd7 23. Ke2 Rb7 24. a3 a4 25. Ne1 Ne7 26. R6c2 Nf5 27. Nd3 h5 28. Rc4 b5 29. Rc6 {And now Nc5 would win.} Bf8 30. Nc5 Bxc5 $1 31. R1xc5 b4 32. Rc4 bxa3 33. bxa3 g5 34. Rxa4 Rb3 35. Kd2 Rb1 (35... Nxe3 $14 36. fxe3 Kg6) 36. Rac4 Ra1 37. Rxc7 Ra2+ (37... Rxc7 $16 {was worth a try.} 38. Rxc7 Nxe3) 38. Rc2 $1 $18 Rxc2+ 39. Rxc2 Nxd4 40. Bxd4 Rxd4+ {[%mdl 4096] Endgame [#] KR-KR} 41. Kc3 $1 {[%cal Rc3d4]} Rh4 42. h3 g4 $2 (42... Kg6 {was called for.} 43. Kb3 Kf5) 43. hxg4 Rxg4 44. f3 Rg8 $2 (44... Ra4 45. Kb3 Ra8) 45. a4 Kg6 46. a5 Kf5 47. Re2 h4 48. Kb4 Rb8+ 49. Kc5 Rc8+ 50. Kb6 Rb8+ 51. Kc7 Ra8 {[#]} 52. Ra2 $1 Kxe5 53. a6 {White mates.} Kf4 54. Kb7 Re8 55. a7 f5 56. a8=Q Rxa8 57. Kxa8 e5 58. Kb7 h3 59. gxh3 Kxf3 60. Kc6 {Precision: White = 72%, Black = 38%.} 1-0

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.06"]
[Round "1"]
[White "Shankland, Samuel"]
[Black "Bruzon Batista, Lazaro"]
[Result "1/2-1/2"]
[ECO "B47"]
[WhiteElo "2668"]
[BlackElo "2673"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,72,45,45,61,33,47,37,37,35,37,30,35,23,26,0,28,0,0,0,0,-15,-12,-43,0,-43,-6,-61,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,18,-47,-48,-52,-37,-28,-27,-34,0,0,14,7,14]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. f4 Nxd4 7. Qxd4 a6 8. a4 {B47: Sicilian: Taimanov: 5 Nc3 Qc7 6 f4, 6 g3 and 6 Be2} b6 9. Be3 {LiveBook: 8 Games} Rb8 10. Be2 {White is slightly better.} Ne7 11. O-O $146 ({Predecessor:} 11. Qd2 Bb7 12. O-O Nc6 13. Rad1 Bc5 14. Na2 O-O 15. b4 Bxe3+ 16. Qxe3 {0-1 (41) Medvegy,Z (2430)-Horvath,A (2497) Hungary 2001}) 11... Nc6 12. Qc4 Bc5 13. Bxc5 Na5 14. Qd3 bxc5 15. e5 {Black must now prevent Ne4.} Bb7 16. Rad1 c4 17. Qg3 O-O 18. Bf3 Bxf3 19. Rxf3 Rxb2 20. Ne4 Kh8 21. Qe1 ({White should try} 21. Rc3 $11) 21... Rfb8 (21... Nc6 $15) 22. Ng5 $11 {aiming for Rh3.} Kg8 {[#] Strongly threatening ...h6.} 23. Nxh7 $1 {[%mdl 512]} Qb6+ (23... Kxh7 24. Rh3+) 24. Kh1 {Rh3 is the strong threat.} Rb1 (24... Rxc2 {[#]} 25. Nf6+ $1 {[%mdl 512]} gxf6 26. exf6 $18) 25. Ng5 Rxd1 26. Qxd1 Qb1 27. Rf1 $1 {[%csl LRb1,LRd7]} Qxd1 28. Rxd1 {[%mdl 4096] Endgame KRN-KRN} Kf8 29. h4 Ke7 30. Ne4 Rc8 31. Rd6 ({Better is} 31. g4 $11) 31... Nc6 $15 32. Rd1 f6 33. Nd6 Rb8 34. exf6+ gxf6 35. c3 Rh8 36. g3 Na5 {Precision: White = 53%, Black = 68%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.06"]
[Round "1"]
[White "Akobian, Varuzhan"]
[Black "Swiercz, Dariusz"]
[Result "1/2-1/2"]
[ECO "D50"]
[WhiteElo "2640"]
[BlackElo "2654"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,83,20,18,0,0,0,0,0,-6,-6,0,0,0,-3,0,0,0,-16,-10,-27,-4,-27,0,0,0,0,0,0,0,0,0,0,0,0,-6,-4,-4,-5,0,0,0,0,0,0,2,1,9,7,12,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-12,0,0,0,0,0,0,0,-8,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 dxc4 5. e3 c5 {LiveBook: 11 Games} (5... a6 6. a4 h6 7. Bh4 b6 8. Bxc4 Bb7 9. Nf3 c5 10. O-O cxd4 11. exd4 Be7 12. Qe2 O-O 13. Rad1 Nc6 14. Rfe1 Nd5 15. Bxd5 Bxh4 16. Be4 Re8 17. d5 exd5 18. Rxd5 Qe7 19. Qd2 Qf6 20. Rd7 {1-0 (20) Ding,L (2749)-Lu,S (2595) Danzhou 2015}) 6. dxc5 {D50: Queen's Gambit Declined: Dutch-Peruvian Gambit} Qxd1+ 7. Rxd1 Bxc5 8. Bxc4 a6 9. Nf3 Nbd7 $146 ({Find the theoretical novelty and annotate with similar games:} 9... b5 10. Bd3 Nbd7 11. Ne4 Be7 12. Nxf6+ gxf6 13. Be4 Ra7 {½-½ (32) Gurevich,M (2620)-Crouch,C (2375) Eupen 1997}) 10. Nd2 b5 11. Be2 Bb7 12. O-O Be7 13. Bf3 Bxf3 14. Nxf3 Rc8 15. Rc1 h6 16. Bxf6 {The position is equal.} Nxf6 17. a4 bxa4 18. Nxa4 O-O 19. Ne5 Nd5 20. g3 Bf6 21. Nd3 {Hoping for e4.} a5 22. Rxc8 Rxc8 23. Rc1 Rb8 24. Kf1 Nb4 25. Ndc5 Be7 26. Ke2 g6 27. Nd7 Rb5 28. Rc7 Nd5 29. Ra7 Nf6 30. Ra8+ Kg7 31. Rb8 Rh5 32. Nxf6 Bxf6 $11 {[%mdl 4096] Endgame KRB-KRN} 33. h4 Rd5 34. Nc3 Rd7 35. Ne4 {[#] And now Rg8+! would win.} Be7 36. Rb3 a4 37. Rb5 a3 38. bxa3 Bxa3 39. Rb3 Be7 40. Rd3 Ra7 41. Kf3 h5 42. Ke2 {Precision: White = 76%, Black = 71%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.06"]
[Round "1"]
[White "Zherebukh, Yaroslav"]
[Black "Xiong, Jeffery"]
[Result "0-1"]
[ECO "B92"]
[WhiteElo "2633"]
[BlackElo "2640"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]

{[%evp 23,78,17,15,8,0,-25,30,0,12,-29,-22,-31,-1,-29,-12,-29,-22,-59,-52,-56,-41,-67,-79,-83,-66,-95,-89,-192,-193,-200,-201,-193,-185,-189,-190,-272,-202,-202,-202,-202,-202,-192,-193,-191,-185,-372,-374,-372,-374,-391,-392,-709,-691,-769,-736,-717,-628]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O 9. Be3 Be6 10. a4 Nbd7 11. Qd2 Rc8 12. a5 Re8 13. Bf3 {B92: Sicilian Najdorf: 6 Be2} h6 {[%cal Bh7h6,Bh6g5,Bg5g4][%mdl 32]} (13... Rc4 14. Rfd1 Bf8 15. Qd3 Rb4 16. Qd2 Rc4 17. Qe1 Qc7 18. Be2 Rc6 19. f3 {1-0 (89) Nakamura,H (2792)-Nepomniachtchi,I (2751) Saint Louis 2017}) 14. Nc1 $146 ({Predecessor:} 14. h3 Qc7 15. Rfd1 b5 16. axb6 Nxb6 17. Na5 Nc4 18. Nxc4 Bxc4 19. Rdc1 Bf8 20. b3 Be6 {1-0 (45) Stewart,D-Adams,M ICCF corr 1994}) 14... Nh7 ({Black should play} 14... b6) 15. g3 {White has an edge.} Bg5 16. Nd3 Nb8 17. Bxg5 Qxg5 18. Qxg5 hxg5 19. Rfd1 Nc6 20. Ne2 g4 21. Bg2 Ng5 22. c3 Red8 23. Ne1 Kf8 24. Rd2 Ke7 25. Nc2 (25. Nc1 $17 {keeps fighting.}) 25... Nf3+ $19 26. Bxf3 gxf3 27. Nc1 d5 28. exd5 Bxd5 29. Kf1 (29. Ne3 $142 Be6 30. Rxd8 Rxd8 31. g4) 29... Be6 30. Rxd8 Rxd8 ({But not} 30... Nxd8 31. h4 $17) 31. Ke1 g5 {[%cal Bg7g5,Bg5g4,Bg4h3][%mdl 32]} 32. Ra4 g4 33. Ne3 f5 34. h4 $2 (34. Nf1) 34... gxh3 {[#] Hoping for ...Nd4!} 35. Rh4 Kf7 36. Nf1 Nxa5 37. b4 $2 (37. Rxh3 Kg6 38. Nd2) 37... Nc4 {Black is clearly winning.} 38. Rxh3 Kg6 39. Rh4 b6 {Precision: White = 34%, Black = 65%.} 0-1

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.06"]
[Round "1"]
[White "Edouard, Romain"]
[Black "Ganguly, Surya Shekhar"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2612"]
[BlackElo "2657"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,67,-2,0,9,10,36,-45,-42,-62,-64,-56,-60,-64,-64,-59,-59,-57,-66,-61,-58,-42,-51,-68,-68,-64,-58,-71,-74,-83,-53,-54,-52,-52,0,0,0,-49,-14,-14,-14,-14,-14,-14,-14,-14,-14,-14,-14,-14,-14,-14,0,-14,0,-14]} 1. Nf3 Nf6 {[%cal Bg8f6,Bf6e4,Be4d2,Bd2b3,Bb3a1][%mdl 32]} 2. c4 g6 3. b3 Bg7 4. Bb2 c5 5. g3 d6 6. d4 Ne4 7. Nbd2 {A49: 1 d4 Nf6 2 Nf3 g6 3 g3: Anti-King's Indian systems} Qa5 8. Qc1 {LiveBook: 7 Games} Bg4 $146 {[#] White must now prevent ...Bh6.} ({Predecessor:} 8... Nxd2 9. Qxd2 Qxd2+ 10. Kxd2 Nc6 11. e3 Bg4 12. Bg2 O-O-O 13. Kc1 Nb4 14. Rd1 cxd4 15. Bxd4 Bxd4 16. Rxd4 {½-½ (46) Sjugirov,S (2650)-Amin,B (2689) Riadh 2017}) 9. Bg2 $1 Nc6 {[%cal Rc5d4]} 10. d5 (10. dxc5 $1 $14 Bh6 11. e3 (11. Bxh8 Bxf3 12. Bc3 Bxd2+ 13. Bxd2 Nxd2 $11) 11... Nxc5 12. O-O) 10... Bxf3 $1 $15 11. exf3 Nxd2 12. Bxg7 Nxb3+ $1 13. Qc3 Nxa1 14. dxc6 Qxc3+ 15. Bxc3 Nc2+ 16. Kd2 Nd4 17. cxb7 Rb8 18. Bxd4 cxd4 {[%mdl 4096] Endgame KRR-KRB} 19. f4 Kd7 20. Rb1 Kc7 21. Kd3 Rhd8 22. Rb3 e6 23. Ra3 $1 Kb6 (23... a6 $5 24. Rxa6 d5 25. cxd5 Kxb7 $15) 24. Rb3+ $1 ({Reject} 24. Kxd4 d5 $15) 24... Kc7 25. Ra3 $1 d5 (25... a6 {seems wilder.} 26. Rxa6 d5 27. cxd5 Kxb7 28. Ra3 exd5 29. Kxd4 Kc6) 26. cxd5 {The position is equal.} exd5 27. Rxa7 Rxb7 28. Rxb7+ Kxb7 29. Kxd4 $11 {KR-KB} Kc6 30. h4 f6 31. Bf3 Rd7 32. Bg2 Rd8 33. Bf3 Rd7 34. Bg2 {Precision: White = 87%, Black = 57%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.07"]
[Round "2"]
[White "Bruzon Batista, Lazaro"]
[Black "Edouard, Romain"]
[Result "1/2-1/2"]
[ECO "B39"]
[WhiteElo "2673"]
[BlackElo "2612"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,100,51,41,49,44,49,57,64,64,64,64,64,63,58,62,56,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-6,-1,-70,-56,-64,-66,-63,0,0,0,0,0,0,0,-19,0,-21,0,0,0,-12,0,-21,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 c5 2. e4 g6 3. d4 cxd4 4. Nxd4 Nc6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 Ng4 8. Qxg4 Nxd4 9. Qd1 e5 10. Bd3 O-O 11. O-O d6 12. Qd2 Be6 13. b3 {B39: Sicilian: Maroczy Bind with 5...Bg7 and 7...Ng4} (13. Rfd1 a6 14. b3 Rc8 15. f3 Qd7 16. Rac1 Rc6 17. Ne2 Rfc8 18. Nxd4 exd4 19. Bf2 Qc7 20. f4 b5 {0-1 (40) Vera Siguenas,D (2528)-Martinez Duany,L (2511) Santa Maria del Mar 2017}) 13... a6 14. Rad1 {LiveBook: 10 Games} Qd7 15. Kh1 $146 {White is slightly better.} ({Predecessor:} 15. f4 exf4 16. Bxf4 Be5 17. Bxe5 dxe5 18. Qg5 Qc7 19. Kh1 b5 20. Nd5 Bxd5 21. cxd5 {1-0 (48) Bellia,F (2424)-Royset,P (2215) Rethymno 2011}) 15... b5 16. Nd5 Bxd5 17. cxd5 f5 18. Bxd4 {[#] And now Bb6 would win.} fxe4 19. Bxe5 Bxe5 20. Bxe4 Qg4 21. Rde1 ({White should play} 21. Rfe1 $14) 21... Qh4 $1 $11 {[%csl Ge5][%cal Rh4h2]} 22. g3 Bxg3 $1 $40 {[%mdl 128] Black attacks.} 23. fxg3 Rxf1+ 24. Rxf1 Qxe4+ {[%mdl 4096] Endgame KQR-KQR} 25. Qg2 Qe7 26. Qd2 Qe4+ 27. Qg2 Qe7 28. Qd2 Re8 29. Kg1 Qe5 30. Rc1 {[#]} (30. Qd3 $11) 30... a5 $1 $15 {[%mdl 512]} 31. Qd3 (31. Qxa5 Qe3+) 31... b4 32. Rc2 Qe3+ (32... Rf8 $15) 33. Qxe3 $11 {The position is equal.} Rxe3 {KR-KR} 34. Kf2 Rd3 35. Ke2 Rxd5 36. Rc7 Re5+ 37. Kf3 h5 38. Rd7 Rd5 39. Ra7 g5 40. g4 hxg4+ 41. Kxg4 Kf8 42. Kf3 Ke8 43. Ke4 Re5+ 44. Kd4 Kd8 45. h3 Kc8 46. Kd3 Kb8 47. Rd7 Rd5+ 48. Kc4 Kc8 49. Ra7 Rc5+ 50. Kd4 Re5 {Precision: White = 63%, Black = 56%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.07"]
[Round "2"]
[White "Ipatov, Alexander"]
[Black "Zherebukh, Yaroslav"]
[Result "1/2-1/2"]
[ECO "D56"]
[WhiteElo "2665"]
[BlackElo "2633"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 35,61,21,27,27,39,36,84,75,80,80,85,79,106,100,100,96,121,114,198,190,131,79,130,0,112,21,21,21]} 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. Rc1 c6 10. Bd3 Nxc3 11. Rxc3 Nd7 12. O-O dxc4 13. Bxc4 b6 14. Bd3 c5 15. Be4 {D56: Queen's Gambit Declined: Lasker Defence} Rb8 16. Qc2 (16. Qa4 Nf6 17. Bc6 cxd4 18. Nxd4 e5 19. Nf3 Rd8 20. h3 a6 21. Rfc1 b5 22. Qa5 Be6 23. Qxa6 {½-½ (44) Svidler,P (2751)-Caruana,F (2807) Saint Louis 2016}) 16... Bb7 17. Bxb7 Rxb7 18. Rc1 a5 {LiveBook: 3 Games} 19. a3 {[%cal Ba2a3,Ba3b4][%mdl 32]} Re8 20. h3 e5 {[#]} 21. dxc5 $146 ({Predecessor:} 21. dxe5 Nxe5 22. Nxe5 Qxe5 23. Rd1 g6 24. Rcd3 Re6 25. Qc3 Qxc3 26. Rxc3 Kf8 {½-½ (27) Vaganian,R (2590)-Tkachiev,V (2664) Almaty 2008}) 21... Nxc5 22. b4 axb4 23. axb4 Nd7 24. Rc7 Rxc7 25. Qxc7 Nf6 26. Qxb6 Nd5 {[#]} (26... e4 $16 {was necessary.}) 27. Qb5 $1 $18 {[%cal Rb5d5]} Nxb4 {[#]} 28. Rb1 (28. Rc7 $142 $1 {[%mdl 512]} Qxc7 29. Qxe8+ Kh7 30. Nxe5) 28... Nc2 ({Black should try} 28... e4) 29. Rc1 (29. Qc6 $16 Na3 30. Rb3) 29... Na3 (29... Nb4 $1 $11 {keeps the balance.}) 30. Qc5 (30. Qb6 $16) 30... Qxc5 $1 $11 31. Rxc5 {Precision: White = 48%, Black = 67%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.07"]
[Round "2"]
[White "Ganguly, Surya Shekhar"]
[Black "Onischuk, Alexander"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "2657"]
[BlackElo "2681"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,119,22,25,20,30,22,27,10,35,21,33,22,25,12,18,0,0,0,0,0,0,-2,-6,-10,0,0,0,14,26,0,31,34,17,22,33,29,36,40,38,50,56,39,38,12,18,12,14,14,55,0,0,0,17,22,103,109,92,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 d6 6. a4 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} a6 7. O-O Ba7 (7... O-O 8. h3 h6 9. Re1 Re8 10. Nbd2 Be6 11. Bxe6 Rxe6 12. b4 Ba7 13. Qc2 Qd7 14. Nf1 d5 15. Ng3 Rd8 16. exd5 Qxd5 {½-½ (63) Carlsen,M (2834)-Kramnik,V (2787) Wijk aan Zee 2018}) 8. Re1 O-O 9. h3 Be6 10. Bxe6 fxe6 {LiveBook: 6 Games} 11. Be3 Bxe3 12. Rxe3 Qd7 13. a5 $146 ({Predecessor:} 13. b4 d5 14. Qb3 d4 15. cxd4 Nxd4 16. Nxd4 exd4 {½-½ (57) Savchenko,B (2602)-Aliyev,E (2150) Kesan 2017}) 13... Ne7 {[%cal Bc6e7,Be7g6,Bg6f4][%mdl 32]} 14. Nbd2 Ng6 15. Nc4 Rae8 16. b4 Qf7 17. Ra2 Nf4 18. Rd2 Qg6 {[%csl Gf4][%cal Rg6g2] [#]} 19. Ne1 Nd7 20. Rg3 Qf7 21. Ne3 Nf6 22. Kh2 Kh8 23. Ng4 h6 24. Re3 Qh5 25. Nxf6 Qxd1 26. Rxd1 gxf6 27. d4 Ng6 28. Nf3 Kg7 29. c4 Kf7 30. b5 Ra8 31. Rb3 axb5 32. Rxb5 {next dxe5 is good for White.} Ra7 33. Rdb1 Rb8 34. g3 (34. c5 $14) 34... Ne7 35. d5 exd5 (35... c6 {seems wilder.} 36. Rb6 exd5 37. cxd5 cxd5 38. Rxd6 dxe4 39. Nd2 Rxa5 40. Nxe4 f5) 36. cxd5 c6 (36... f5 $11) 37. dxc6 $16 Nxc6 {[#]} 38. a6 (38. Nh4 $1 $16) 38... Rxa6 $11 {The position is equal.} 39. Rxb7+ Rxb7 40. Rxb7+ {[%mdl 4096] Endgame KRN-KRN} Ne7 41. Nh4 Ke8 42. g4 Ra4 43. f3 Rd4 44. Rb8+ Kf7 $1 45. Rb7 Ke8 46. Rb8+ Kf7 $1 47. Rh8 Kg7 48. Rd8 (48. Ra8 {feels hotter.} d5 49. Ra7 Kf8 50. exd5 Rxd5 51. Ng2) 48... Kf7 49. Nf5 Nxf5 50. gxf5 {KR-KR} Ke7 51. Rh8 d5 52. Rh7+ Kd6 53. Rxh6 dxe4 {Threatens to win with ...e3.} 54. fxe4 Rxe4 55. Rxf6+ Kd5 56. Kg3 Rf4 57. Rf8 Ke4 58. f6 {f7 is the strong threat.} Kf5 59. f7 Ke6 60. Re8+ {Precision: White = 57%, Black = 64%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.07"]
[Round "2"]
[White "Swiercz, Dariusz"]
[Black "Xiong, Jeffery"]
[Result "1/2-1/2"]
[ECO "D70"]
[WhiteElo "2654"]
[BlackElo "2640"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,68,0,0,33,28,30,25,26,17,31,35,23,26,29,30,20,22,24,8,24,30,43,51,57,58,53,31,16,4,27,4,23,18,31,22,12,13,18,0,6,4,30,37,44,42,37,35,39,11,19,10,10]} 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 c6 5. Bg2 d5 6. Qb3 dxc4 7. Qxc4 O-O 8. O-O Bf5 {D78: Fianchetto Grünfeld: 6 0-0 c6} 9. Bf4 (9. Nc3 Nbd7 10. Re1 Nb6 11. Qb3 Be6 12. Qd1 Nfd5 13. Ne4 Qc8 14. Neg5 Rd8 15. e4 Nc7 16. Bf4 Nb5 17. d5 cxd5 18. Rc1 {½-½ (79) Yu,Y (2751)-Grischuk,A (2772) Huaian 2017}) 9... Nbd7 10. Qc1 {LiveBook: 6 Games} Rc8 11. Nc3 Qb6 12. h3 $146 ({Predecessor:} 12. Rd1 c5 13. d5 Ne4 14. Nh4 Nxc3 15. bxc3 {1-0 (26) Raetsky,A (2505)-Toth,B (2400) Biel 1995}) 12... Nd5 13. Bh6 Nxc3 14. bxc3 Be4 15. Bxg7 Kxg7 16. Ne5 Nxe5 17. Bxe4 Nc4 18. Bd3 Na5 19. Rb1 Qc7 20. c4 Rfe8 21. c5 e5 22. dxe5 Rxe5 23. Qc3 {[#] aiming for f4.} f6 24. Rb4 Rd8 25. Re4 b6 26. cxb6 axb6 27. Rxe5 Qxe5 28. Qb4 Qc7 29. Rb1 c5 30. Qxb6 Qxb6 31. Rxb6 {Hoping for Rb5.} c4 32. Bb1 Rd2 33. Rb5 Nc6 $1 34. Rc5 Ne7 {Precision: White = 71%, Black = 42%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.07"]
[Round "2"]
[White "Akobian, Varuzhan"]
[Black "Shankland, Samuel"]
[Result "1/2-1/2"]
[ECO "A58"]
[WhiteElo "2640"]
[BlackElo "2668"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,68,18,43,49,54,56,68,23,29,27,41,4,8,1,18,17,33,28,47,37,63,65,58,64,58,22,15,22,15,0,0,0,20,8,17,17,17,17,17,17,22,16,29,29,33,22,29,13,14,0,4,4,4,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 {A58: Benko/Volga Gambit: Lines with 5 bxa6} Bg7 (6... Bxa6 7. Nf3 Bg7 8. e4 Bxf1 9. Kxf1 d6 10. g3 O-O 11. Kg2 Na6 12. Qe2 Qb6 13. Rd1 Qb7 14. Rb1 Nd7 15. Bg5 Rfe8 16. a3 Nc7 17. Qc2 Nb6 18. a4 Rac8 19. b3 e6 20. dxe6 Nxe6 {1-0 (27) Jakovenko,D (2714)-Zvjaginsev,V (2673) Moscow 2016}) 7. e4 O-O 8. e5 {[#] aiming for a7.White is slightly better.} Ne8 9. Nf3 d6 10. exd6 Nxd6 11. Be2 Nxa6 12. O-O Bb7 13. Bf4 $146 ({Predecessor:} 13. Re1 Nc7 {0-1 (38) Narciso Dublan,M (2532)-Cuenca Jimenez,J (2526) Linares 2015}) 13... Nb4 14. Be5 Nf5 {[%cal Rb4d5]} 15. Bxg7 Kxg7 16. Bc4 Nd6 17. b3 e6 $1 18. dxe6 Nxc4 19. bxc4 {With the idea Qxd8.} Qf6 $1 {[%cal Rf6c3]} 20. Nd5 Nxd5 21. cxd5 {[#] Threatens to win with Rb1.} fxe6 22. dxe6 {And now Qd7+ would win.} Bxf3 23. Qxf3 Qxf3 24. gxf3 $11 {[%mdl 4096] Endgame KRR-KRR} Kf6 25. a4 Rfc8 26. Rfe1 Ke7 27. Re4 c4 {[%cal Bc5c4,Bc4c3,Bc3c2][%mdl 32]} 28. Kf1 c3 {The position is equal.} 29. Ke2 Ra5 30. Rc1 c2 31. h4 Rc6 32. Kd2 Rd5+ 33. Ke2 Ra5 34. Kd2 Rd5+ {Precision: White = 68%, Black = 77%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.08"]
[Round "3"]
[White "Onischuk, Alexander"]
[Black "Bruzon Batista, Lazaro"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2681"]
[BlackElo "2673"]
[Annotator "TA"]
[PlyCount "127"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,127,3,14,18,18,4,14,18,18,12,27,27,33,24,44,49,52,39,35,35,35,0,0,0,0,0,0,-8,31,33,57,0,0,0,0,0,29,33,36,-22,-14,-38,-48,-42,-31,-88,-75,-83,-59,-46,-11,-19,0,-16,-18,-18,-21,-17,-13,-14,0,-13,-15,-17,-16,-20,-19,-18,-11,-16,-1,-8,-8,-16,-16,-16,-16,-16,-16,-16,0,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,0,0,0,0,0,-8,-8,-8,0,-8,-8,-8,-8,-8,-8,-8]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 a6 6. Ne5 c5 7. Be3 Nd5 8. Nc3 {E04: Open Catalan: 5 Nf3} Nxe3 9. fxe3 Nd7 10. Nxc4 Be7 {LiveBook: 4 Games} 11. dxc5 (11. O-O O-O 12. a4 Nb6 13. Nxb6 Qxb6 14. a5 Qc7 15. Na4 cxd4 {0-1 (47) Nguyen,N (2649)-Wang,H (2717) Ho Chi Minh City 2016}) 11... Bxc5 12. Nd6+ Bxd6 13. Qxd6 Qe7 {[#]} 14. Qd4 $146 ({Predecessor:} 14. O-O-O Qxd6 15. Rxd6 Ke7 16. Rhd1 Rb8 17. R6d4 Ne5 18. Na4 b6 19. R1d2 Bd7 20. b3 {½-½ (20) Pelletier,Y (2593)-Kveinys,A (2506) Reykjavik 2011}) 14... Nf6 15. O-O O-O 16. Rad1 Rb8 17. Qe5 Ra8 18. Rf4 Ra7 19. Rdf1 {[%cal Rf4f6]} Nd7 $1 {[%cal Rd7e5]} 20. Nd5 Qd8 (20... Nxe5 $2 {perishes.} 21. Nxe7+ Kh8 22. Re4 $18) 21. Qd4 b6 {[#] And now ...e5 would win.} 22. Rg4 {[%csl Gg4][%cal Rd4g7]} f6 23. Nb4 $132 {[%mdl 2048] White is not keeping still} Bb7 24. Bxb7 Rxb7 25. Nxa6 ({Better is} 25. Qc4 $1 $14) 25... Qa8 $11 26. Nb4 Ne5 27. Rgf4 Nf7 28. Qe4 Qc8 29. h4 (29. Rh4 $14 Ng5 30. Qc6) 29... Rc7 {[#] Hoping for ...e5.} 30. Nd3 e5 31. R4f2 Rc4 32. Qf5 (32. Qg2 $15) 32... Qxf5 $17 33. Rxf5 Nh6 34. R5f3 $1 Rc2 {...e4 is the strong threat.} 35. Nxe5 {The position is equal.} Rxb2 36. Nc4 Rxa2 37. Nxb6 Rxe2 38. R1f2 Re1+ 39. Rf1 Re2 40. R1f2 Rxf2 41. Kxf2 $11 {[%mdl 4096] Endgame KRN-KRN} Rb8 42. Nc4 Ng4+ 43. Ke2 h5 44. Rf5 g6 45. Rc5 Rb1 46. e4 Rb3 47. Rc8+ Kf7 48. Rc7+ Ke6 49. Rc6+ Kf7 50. Rc7+ Kf8 51. Rc8+ Ke7 52. Rc7+ Kd8 53. Rg7 Rxg3 54. Rxg6 Rg2+ 55. Ke1 Rh2 {next ...Ke7 is good for Black.} 56. e5 fxe5 57. Rg5 Rxh4 {aiming for ...e4.} 58. Nxe5 Nf6 59. Rf5 Re4+ 60. Kf2 Rxe5 61. Rxe5 Ng4+ 62. Kg3 $1 Nxe5 63. Kh4 Ke7 64. Kxh5 {Precision: White = 64%, Black = 61%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.08"]
[Round "3"]
[White "Shankland, Samuel"]
[Black "Swiercz, Dariusz"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "2668"]
[BlackElo "2654"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,61,3,0,0,0,3,6,-7,0,0,20,18,21,19,27,12,23,10,11,16,10,10,14,4,11,0,0,0,0,0,0,0,35,0,7,0,62,0]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. c4 Nb6 9. Nc3 {[%cal Bb1c3,Bc3e4,Be4f6,Bf6g4][%mdl 32]} Ba6 {C45: Scotch Game} 10. Qe4 (10. b3 O-O-O 11. Bb2 Re8 12. f4 f6 13. O-O-O fxe5 14. Qxe5 Qxe5 15. fxe5 Rxe5 16. Bd3 Re3 17. Rhf1 {0-1 (24) Nepomniachtchi,I (2751)-Karjakin,S (2783) chess.com INT 2017}) 10... f6 11. exf6 Qxe4+ 12. Nxe4 gxf6 13. Nxf6+ Kf7 {LiveBook: 3 Games} 14. Ng4 Re8+ 15. Ne3 Bxc4 $146 ({Find the theoretical novelty and annotate with similar games:} 15... Nxc4 16. Kd1 Nxe3+ 17. Bxe3 Bxf1 18. Rxf1 {½-½ (44) Seyb,A (2411)-Pajeken,W (2204) Sitges 2017}) 16. Bxc4+ Nxc4 17. O-O Re4 (17... Nb6 {NOTEXT} 18. Bd2 Bg7 19. Rab1 Re4 20. b4 Bd4) 18. Nxc4 Rxc4 19. Be3 Bg7 20. Rad1 d6 21. Rc1 Rxc1 22. Rxc1 Bxb2 23. Rxc6 $11 {[%mdl 4096] Endgame KRB-KRB} Rc8 24. Kf1 Ke6 25. Ke2 Kd5 26. Ra6 c5 27. Rxa7 Kc4 28. Ra4+ Kb5 29. Ra7 {[#] And now Rb7+ would win.} Kc4 30. Ra4+ ({Better is} 30. Rxh7 $11 d5 31. Ra7) 30... Kb5 $14 31. Ra7 {Precision: White = 50%, Black = 87%.} (31. Rh4 $1 $14) 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.08"]
[Round "3"]
[White "Xiong, Jeffery"]
[Black "Ipatov, Alexander"]
[Result "1/2-1/2"]
[ECO "B08"]
[WhiteElo "2640"]
[BlackElo "2665"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,64,19,33,28,14,12,21,14,14,13,14,0,7,7,8,0,-4,0,0,0,0,0,0,0,52,0,72,0,87,85,95,64,45,58,82,16,15,14,12,10,12,24,16,0,0,0,0,0,0,0,0,0,0]} 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. Be2 Nf6 5. Nc3 O-O 6. O-O a6 7. a4 Nc6 {LiveBook: 130 Games} 8. Bg5 {B08: Pirc Defence: Classical System} (8. h3 e5 9. dxe5 dxe5 10. Bc4 h6 11. Be3 Qe7 12. Qe2 Be6 13. Rfd1 Rad8 14. Bb3 Rfe8 15. Rxd8 Rxd8 16. Bxe6 Qxe6 {0-1 (68) Wang,H (2709)-Yu,Y (2751) Huaian 2017}) 8... h6 9. Be3 e5 $146 ({Find the theoretical novelty and annotate with similar games:} 9... d5 10. exd5 Nxd5 11. Nxd5 Qxd5 12. c4 Qd6 13. d5 Ne5 14. c5 Qf6 15. Qb3 Bg4 16. Nd4 Bxe2 17. Nxe2 Qh4 18. Bf4 b6 {0-1 (18) Alekseev,A (1965)-Kroes,F (2096) LSS email 2010}) 10. dxe5 dxe5 11. Qc1 Nd4 12. Rd1 {[%cal Rf3d4]} Ng4 13. Bd2 f5 14. Nxd4 exd4 15. Bxg4 fxg4 16. Bxh6 Qh4 17. Bxg7 Kxg7 18. Nd5 $36 {[%mdl 2048] [#] Black must now prevent Qd2. White is more active.} Qxf2+ 19. Kh1 Qh4 (19... c6 $11 20. Rd2 Qh4) 20. Rxd4 (20. g3 $16 Qh5 21. Rxd4 (21. Nxc7 $2 Rf2 $19)) 20... c5 (20... g3 $1 $11 {remains equal.} 21. Qg1 Rf2 22. Nxc7 Bh3 23. Nxa8 Bxg2+ 24. Qxg2 Rxg2 25. Rd7+ Kh6 26. Kxg2 Qxe4+ 27. Kxg3 Qe5+ 28. Kg2 Qe2+ 29. Kg3 Qe5+ 30. Kg2 Qe2+ 31. Kg3 Qe5+) 21. g3 Qh5 22. Rc4 {Hoping for Qe3.} b6 23. Qd2 Be6 {[#]} 24. a5 (24. Kg1 $1 $16) 24... Rad8 $11 {[%cal Rd8d5] aiming for ...Rxd5.} 25. Kg1 Bxd5 26. exd5 Rxd5 27. Qc3+ Kg8 $1 28. axb6 {And now b7 would win.The position is equal.} Rf2 $1 {[%csl Gf2][%cal Rh5h2]} 29. h4 Rdd2 $1 {( -> ...Qd5)} 30. Rxc5 Rg2+ 31. Kh1 {White wants to mate with Rc8+.} Rh2+ 32. Kg1 {Threatening mate with Rc8+.} Rhg2+ $1 {Precision: White = 52%, Black = 72%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.08"]
[Round "3"]
[White "Zherebukh, Yaroslav"]
[Black "Ganguly, Surya Shekhar"]
[Result "1/2-1/2"]
[ECO "B48"]
[WhiteElo "2633"]
[BlackElo "2657"]
[Annotator "TA"]
[PlyCount "140"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,140,0,0,0,0,0,0,0,0,0,0,0,0,0,14,15,11,-102,0,0,0,0,0,0,0,0,0,-9,0,0,0,-67,-66,-59,-67,-68,-55,-58,-58,-75,-52,-128,-78,-116,-76,-79,-79,-85,-85,-85,-62,-85,-47,-58,-28,-17,-12,-22,-19,-33,0,-21,-13,-33,-30,-12,-8,-68,0,0,0,0,0,0,0,0,8,-6,-7,-6,-6,-6,-8,-5,0,-69,-69,-58,-8,-8,-8,-8,-18,-36,81,81,81,81,81,0,0,0,32,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qf3 {B48: Sicilian: Taimanov: 5 Nc3 Qc7 6 Be3 a6 without Be2} (7. Qd2 Nf6 8. f4 Bb4 9. Bd3 Na5 10. a3 Bxc3 11. Qxc3 Qxc3+ 12. bxc3 d5 13. exd5 exd5 14. Nb3 Nc4 15. Bd4 Ne4 {1-0 (57) Carlsen,M (2834)-Matlakov,M (2718) Wijk aan Zee 2018}) 7... Nf6 8. O-O-O h5 9. Nxc6 dxc6 10. h3 b5 11. e5 Nd5 $1 {LiveBook: 3 Games} 12. Nxd5 $146 ({Predecessor:} 12. Bf4 Qa5 13. Bd3 Be7 14. Nxd5 exd5 {½-½ (37) Santos Latasa,J (2536)-Shankland,S (2662) Sitges 2017}) 12... exd5 13. Bd3 Be6 14. Rhe1 Qxe5 15. Bf4 Qf6 16. Qe3 Bc5 17. Qd2 O-O-O 18. Bg5 Qxf2 19. Qa5 (19. Re2 $11 Qg3 20. Bxd8 Rxd8 21. Rf1) 19... Bb6 (19... Rde8 $17 20. Rf1 (20. Qxa6+ Kc7 $17) 20... Qg3 21. Qxa6+ Kd7) 20. Qxa6+ $11 Kc7 21. Bxd8+ Rxd8 22. Re2 Qc5 23. Rf1 $1 Rf8 24. Rfe1 Rb8 25. Rf1 Kd6 26. Kb1 (26. Bf5 $11) 26... Bc8 $15 27. Qa3 Qxa3 28. bxa3 Be6 29. Bf5 Bd4 $1 {[%mdl 1024] Black has compensation.} 30. Rf3 h4 31. Bg4 (31. c3 $15 Bf6 32. Kc2) 31... Ra8 32. Kc1 Ra4 33. Bxe6 fxe6 $17 {[%mdl 4096] Endgame KRR-KRB} 34. g3 hxg3 35. Rxg3 Bf6 36. Ree3 e5 37. Kd1 e4 38. h4 $1 Ke5 39. h5 Kf4 40. Rb3 d4 41. Rg1 e3 42. Ke2 Rc4 43. Kd3 Rc5 44. Rh1 (44. Rf1+ $11 Kg5 45. Rh1) 44... Rg5 (44... Re5 $1 $15 45. Rbb1 e2) 45. Rf1+ $11 Ke5 {[#] And now ...Rg2 would win.} 46. c3 Kd5 47. cxd4 Bxd4 48. Rf4 Bc5 49. a4 Rg2 {...Rd2+ is the strong threat.} 50. Rf5+ ({Don't play} 50. axb5 Rd2+ 51. Kc3 Bd4+ 52. Rxd4+ Rxd4 $17) 50... Kd6 51. Rb1 $1 ({Not} 51. axb5 $2 Rd2+ 52. Kc3 Bd4+ 53. Kc4 e2 $19) 51... Rd2+ 52. Ke4 $132 {[%mdl 2048] White has counterplay} bxa4 53. Rc1 ({White should try} 53. h6 $11 gxh6 54. Rf6+ Kc7 55. Rf7+ Kc8 56. Rf6) 53... e2 $15 {White must now prevent ...Rd1.} 54. Re1 $1 {next Kf3 is good for White.} Rxa2 (54... a3 $5 {[%cal Rd2a2]} 55. Rf4 Rxa2 $17) 55. Kd3 a3 {aiming for ...Bb4.} 56. Rf4 Rb2 {Threatens to win with ...Bb4.} 57. Ra4 Rb4 (57... a2 $15 {keeps the upper hand.}) 58. Rxb4 $16 Bxb4 59. Rxe2 {KR-KB} Kd5 {[#]} 60. Rg2 (60. Kc2 $1 $16) 60... Be7 $11 61. Kc2 c5 62. Kb1 (62. Rxg7 a2 $19) 62... Bf6 {The position is equal.} 63. Ka2 Bb2 $1 64. Rg6 c4 65. h6 $1 {[%cal Rh6h7]} gxh6 66. Rxh6 Kc5 (66... c3 $5 {[%cal Rc3c2]} 67. Kb3 c2 68. Kxc2 Bg7 $11) 67. Rh2 Kd4 68. Rh4+ Kc3 69. Rh3+ Kb4 70. Rh4 Kc3 {Precision: White = 66%, Black = 68%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.08"]
[Round "3"]
[White "Edouard, Romain"]
[Black "Akobian, Varuzhan"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "2612"]
[BlackElo "2640"]
[Annotator "TA"]
[PlyCount "132"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,132,3,5,0,4,0,10,0,0,-13,-7,-15,-9,-8,-9,-14,30,30,27,0,0,0,0,0,0,0,0,0,0,0,12,12,12,11,10,0,0,0,0,-2,0,0,0,-31,-6,-8,0,0,0,0,0,0,0,0,0,-29,-6,-70,-71,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-84,-53,-29969,-29970,-29971,-29972,-29972,-29973,-29970,-29973,-29973,-29975,-29974,-29976,-29975,-29977,-29977,0,0,0,-5081,-8,-29979,-29980,-29982,-29982,-29984,-29985,-29986,-29987,-29987,-29988]} 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Bd7 6. Qxc4 {A13: English Opening: 1...e6} c5 7. Ne5 Qc8 8. Qd3 Nc6 9. Nxd7 Nxd7 {LiveBook: 16 Games} 10. Nc3 Be7 11. Qb5 (11. b3 {with more complications.} Nde5 12. Qe3 Qd7 13. O-O O-O 14. d3) 11... O-O $146 ({Predecessor:} 11... a6 12. Qa4 Nd4 13. O-O O-O {1-0 (33) Aronian,L (2797)-Sethuraman,S (2646) Caleta 2018}) 12. Bxc6 bxc6 13. Qd3 Nb6 14. b3 {[#]} c4 $1 {[%mdl 512]} 15. bxc4 Qa6 16. O-O Bf6 17. Rb1 Rfd8 ({Don't blunder} 17... Nxc4 $2 18. Rb4 $18) 18. Qf3 Nxc4 19. Ne4 Be7 20. Qc3 Nd6 ({Don't go for} 20... Qxa2 $2 21. Ra1 $18) 21. Bb2 {[%csl Gb2][%cal Rc3g7]} Bf8 22. Nxd6 Rxd6 23. Ba3 Rd5 24. Bxf8 $1 Rxf8 25. d3 Qxa2 26. Rb2 Qa6 27. Rc1 Rb5 28. Rbc2 Rb6 29. Qe5 Qb7 30. Rc4 Rc8 31. h4 Rb1 32. Rxb1 Qxb1+ $11 {[%mdl 4096] Endgame KQR-KQR} 33. Kg2 Qb7 34. Rc5 (34. h5 {keeps more tension.} c5+ 35. f3 Qd5 36. Qb2 Qxh5 37. Qb7) 34... Rd8 35. Qc3 h6 36. e4 Rd6 37. Rc4 ({White should try} 37. Kf3 $11) 37... Qb1 $15 38. Rxc6 Rxc6 ({Much weaker is} 38... Qxd3 $6 39. Rc8+ Kh7 40. Qxd3 $11) 39. Qxc6 Qxd3 $17 {KQ-KQ} 40. Qa8+ Kh7 41. Qxa7 Qxe4+ 42. Kg1 Qf3 43. Qd4 Kg6 44. Qe5 h5 45. Qg5+ Kh7 46. Qe5 Qd1+ 47. Kh2 Qd5 48. Qe2 Kg6 49. Qc2+ Qf5 50. Qe2 e5 51. Kg2 e4 52. Qe3 $2 {[%mdl 8192] [#]} (52. Qd2 $15) 52... Qf3+ $1 {[%mdl 512]} 53. Qxf3 exf3+ 54. Kxf3 {K3P-K3P} Kf5 55. Kg2 Ke4 $1 56. f3+ Ke3 57. g4 g6 $1 58. g5 Ke2 $1 59. Kg3 {[#]} Ke3 $2 (59... Kf1 $1 {mates} 60. f4 Kg1 61. Kf3 Kh2 62. Ke4 Kg3 63. f5 Kxh4 64. fxg6 fxg6 65. Kf4 Kh3 66. Kf3 h4 67. Kf4 Kg2 68. Ke5 h3 69. Kf6 h2 70. Kxg6 h1=Q 71. Kg7 Qh5 72. Kf6 Kf3 73. Kf5 Qg4+ 74. Ke5 Qxg5+ 75. Kd6 Ke4 76. Kc6 Qd5+ 77. Kb6 Kd4 78. Kc7 Kc5 79. Kb8 Kc6 80. Ka8 Kb6+ 81. Kb8 Qg8#) 60. Kg2 $1 $11 Ke2 $2 {[%mdl 8192]} (60... Kd4 $11) 61. Kg3 $19 {[#] intending Kg2.} Kf1 $1 {[%cal Rf1e1] Strongly threatening ...Ke1.} 62. Kf4 $2 {[%mdl 8192]} (62. Kh2 $11 Kf2 63. f4) 62... Kf2 {Black mates.} 63. Ke5 Kg3 64. Kf6 Kxh4 65. f4 Kg4 66. Kxf7 Kf5 {Precision: White = 55%, Black = 83%.} 0-1

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.09"]
[Round "4"]
[White "Bruzon Batista, Lazaro"]
[Black "Zherebukh, Yaroslav"]
[Result "0-1"]
[ECO "D71"]
[WhiteElo "2673"]
[BlackElo "2633"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,76,-2,8,10,8,-14,-16,-15,-26,-47,-29,-65,-74,-59,-58,-79,-29,-35,-29,-23,0,0,0,0,0,0,0,0,0,-4,0,0,0,0,0,0,20,0,0,0,21,0,47,0,0,0,60,0,0,0,24,17,20,28,25,0,0,0,0,-875,-841,-1272,-1271]} 1. d4 Nf6 {[%cal Bg8f6,Bf6d5,Bd5b6][%mdl 32]} 2. c4 g6 3. g3 c6 4. Bg2 d5 5. Qa4 (5. Nf3 Bg7 6. Qb3 O-O 7. O-O Qb6 8. Nc3 Rd8 9. h3 Bf5 10. Bf4 Na6 11. Qxb6 axb6 12. cxd5 Nxd5 13. Nxd5 Rxd5 14. Be5 Bxe5 15. dxe5 Be4 16. Rfd1 Bxf3 17. Bxf3 Rxe5 {0-1 (68) Li,C (2732)-Vachier Lagrave,M (2789) Riadh 2017}) 5... Bg7 6. cxd5 {D71: Fianchetto Grünfeld: 3 g3 d5 sidelines and 5 cxd5 (without Nf3)} Nxd5 7. Nf3 Nb6 8. Qc2 Bg4 {LiveBook: 3 Games} 9. e3 O-O $146 ({Predecessor:} 9... N8d7 10. O-O O-O 11. Nbd2 c5 12. h3 Bxf3 13. Nxf3 {½-½ (37) Bluebaum,M (2642)-Mista,A (2588) Germany 2017}) 10. Nbd2 Na6 11. O-O c5 12. Qe4 Be6 13. Qxb7 Nb4 $1 14. Ng5 Bc8 $1 {[%cal Rc8b7]} 15. Qe4 cxd4 (15... Bf5 $5 {[%cal Rf5e4]} 16. Qh4 h6 17. dxc5 Nc2 $15) 16. a3 $1 {[%cal Ra3b4]} N4d5 {Threatens to win with ...h6.} 17. exd4 e5 18. Ndf3 h6 19. Nxf7 Rxf7 20. Nxe5 Rf6 21. Bd2 {[%cal Bc1d2,Bd2b4,Bb4c5][%mdl 32]} Bf5 22. Qe2 Qe8 23. Rfe1 Qa4 24. Bb4 Re8 25. Bc5 Rfe6 26. Qd2 g5 27. Rac1 {And now Bxb6 would win.} Rd8 28. h3 Bf6 29. Kh2 {[%mdl 1024] White has compensation.} Bg7 30. Bf3 Qb3 ({Black should play} 30... Qe8 $11) 31. Bg2 (31. Bh5 $14) 31... Rde8 32. Qa5 Qxb2 33. Qxa7 Bg6 $1 34. Qb7 Qxf2 {...Ne3 is the strong threat.} 35. Rf1 Qb2 {Strongly threatening ...Ne3.} 36. Nxg6 Re2 $1 {[%cal Re2g2]} 37. Qf7+ $2 {[%mdl 8192]} (37. Rg1 $11 Rxg2+ 38. Rxg2 Qxc1 39. Bxb6) 37... Kh7 $19 38. Rg1 {[#]} Ne3 $1 {Precision: White = 62%, Black = 66%.} 0-1

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.09"]
[Round "4"]
[White "Shankland, Samuel"]
[Black "Edouard, Romain"]
[Result "1/2-1/2"]
[ECO "D27"]
[WhiteElo "2668"]
[BlackElo "2612"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,71,32,24,34,10,4,10,14,4,17,19,20,8,43,0,0,0,0,0,0,0,23,0,0,0,0,-9,0,0,0,0,0,0,0,0,4,0,0,0,0,0,0,0,0,0,20,0,0,0]} 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Nc3 b5 8. Be2 Nbd7 {D27: Queen's Gambit Accepted: Classical main line: 7 e4!? and 7 a4} (8... Bb7 9. dxc5 Nc6 10. Qc2 Nb4 11. Qb3 Bxc5 12. Rd1 Qb8 13. a4 bxa4 14. Qxa4+ Bc6 15. Qa5 Be7 16. Ra3 Nc2 {1-0 (46) Wei,Y (2743)-Navara,D (2740) Yancheng 2018}) 9. d5 exd5 10. Nxd5 Bb7 11. Nxf6+ Qxf6 12. a4 b4 13. e4 {LiveBook: 8 Games} h6 ({Wrong is} 13... Bxe4 $2 14. Re1 $18) 14. Ra2 {[#]} Rd8 $146 ({Predecessor:} 14... Bd6 15. b3 Ne5 16. Nd2 {1-0 (53) Bukavshin,I (2616)-Predke,A (2511) St Petersburg 2014}) 15. b3 Ne5 ({But not} 15... Bxe4 $6 16. Rd2 $16) 16. Rd2 Nxf3+ 17. Bxf3 {Hoping for e5!} Rxd2 $1 18. Bxd2 Be7 19. Be3 (19. e5 $5 Bxf3 20. exf6 Bxd1 21. fxg7 $16) 19... Qe6 20. Bg4 Qc6 21. Be2 O-O {[%cal Bh8f8,Bf8d8,Bd8d3][%mdl 32]} 22. f3 Bc8 23. Bc4 Be6 {The position is equal.} 24. Qe2 Rd8 25. Rc1 Qd6 26. g3 Bxc4 27. Qxc4 {[%cal Re3c5]} Qd3 28. Kf2 Qxc4 29. Rxc4 Rd3 30. Bxc5 Bxc5+ 31. Rxc5 Rxb3 $11 {KR-KR} 32. Ra5 Rb2+ 33. Ke3 Rxh2 34. Rxa6 b3 35. Rb6 Ra2 36. Rxb3 {Precision: White = 67%, Black = 69%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.09"]
[Round "4"]
[White "Ganguly, Surya Shekhar"]
[Black "Xiong, Jeffery"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "2657"]
[BlackElo "2640"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,84,30,30,18,27,16,15,10,14,12,33,25,27,8,10,9,22,14,46,41,31,30,12,18,41,41,45,38,34,41,43,35,52,21,17,19,30,11,16,10,16,0,0,0,0,0,0,0,0,-26,-26,-47,-8,-129,-141,-682,-690,-1106,-1106,-1018,-1015,-5389,-934,-29984,-29985,-29985,-29986,-29984,-29985]} 1. c4 c5 2. Nf3 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. e3 Nc6 6. Bb5 Nxc3 7. bxc3 Bd7 8. O-O e6 9. d4 Be7 {LiveBook: 12 Games. D41: Queen's Gambit Declined: Semi-Tarrasch with 5 cxd5} 10. Rb1 O-O 11. Re1 $146 ({Find the theoretical novelty and annotate with similar games:} 11. e4 cxd4 12. cxd4 a6 13. Be2 {1-0 (38) Vaulin,A (2547)-Dvoirys,S (2562) Novgorod 1999}) 11... Qc7 {The position is equal.} 12. e4 Rfd8 13. g3 Bf6 14. Bf4 Qa5 15. Bf1 ({But not} 15. dxc5 e5 $15) 15... cxd4 16. cxd4 b6 17. Bc7 Rdc8 18. Bd6 Be7 $1 {[%cal Re7d6]} 19. Bxe7 Nxe7 20. Ne5 Be8 21. Nc4 Qa4 $1 22. Nd6 Rd8 23. e5 Nc8 24. Nxe8 Qxe8 25. Bb5 {[%cal Bf1b5,Bb5c6,Bc6e4][%mdl 32]} Qf8 $1 26. Bc6 Rb8 27. Qa4 Ne7 28. Be4 a5 29. Rb5 Qe8 30. Qb3 Rxd4 31. Rxb6 Rxb6 32. Qxb6 Qd8 33. Qc5 g6 34. Bf3 Rd2 35. Re4 {[#]} (35. Re2 $11 Nf5 36. Rxd2 Qxd2 37. a3) 35... Nf5 $1 $17 ({Of course not} 35... Rxa2 $6 36. Rd4 $11) 36. Ra4 $2 {[%mdl 8192]} (36. Re2 $17) 36... Qd3 $19 37. Ra3 Qb1+ 38. Kg2 Qe1 39. Rxa5 Kg7 (39... Ne3+ $142 40. Kh3 Qf1+ 41. Kh4 Nf5+ 42. Kg5 Kg7) 40. Ra8 Ne3+ {Black mates.} 41. Kh3 Qf1+ 42. Kh4 {[#]} Rd4+ $1 {[%mdl 512] Precision: White = 31%, Black = 82%.} 0-1

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.09"]
[Round "4"]
[White "Swiercz, Dariusz"]
[Black "Ipatov, Alexander"]
[Result "1/2-1/2"]
[ECO "E10"]
[WhiteElo "2654"]
[BlackElo "2665"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 31,62,0,4,7,9,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Qc2 b6 9. Rd1 Bb7 10. Bf4 Nbd7 11. Nc3 dxc4 12. Ne5 {E08: Closed Catalan: Main Line: 7 Qc2} Nd5 13. Nxc4 Nxf4 14. gxf4 Qc7 15. e3 Rad8 16. Rac1 c5 {LiveBook: 34 Games. The position is equal.} 17. d5 exd5 $1 18. Nxd5 Bxd5 19. Rxd5 b5 {[#]} 20. Ne5 $146 Nxe5 21. Rxe5 Bd6 22. Rd5 Be7 23. a4 (23. Rcd1 {keeps more tension.} Rxd5 24. Rxd5 a6 25. a4 g6 26. b4) 23... a6 24. Rcd1 (24. axb5 {is interesting.} Rxd5 25. Bxd5 axb5 26. b3 g6 27. Bf3) 24... g6 25. axb5 axb5 26. b3 Rxd5 27. Rxd5 Rd8 28. Rxd8+ Qxd8 29. Bf1 Qd7 30. Qd3 Qxd3 31. Bxd3 b4 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.09"]
[Round "4"]
[White "Akobian, Varuzhan"]
[Black "Onischuk, Alexander"]
[Result "1/2-1/2"]
[ECO "E12"]
[WhiteElo "2640"]
[BlackElo "2681"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,92,0,0,0,6,0,6,7,0,16,21,15,19,20,24,25,14,16,13,25,10,33,22,23,13,30,0,0,0,0,0,14,0,0,0,2,0,0,0,0,-9,-3,-8,-8,-3,-3,-3,-3,-8,-3,-3,0,-8,-3,-9,-3,-9,-3,-3,-3,-3,-3,-3,-3,-3,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Ba6 5. Qc2 c5 6. d5 exd5 7. cxd5 g6 8. Nc3 Bg7 9. e4 Bxf1 10. Kxf1 d6 {E12: Queen's Indian: Unusual White 4th moves, 4 a3, 4 Nc3 Bb7 5 a3 and 4 Nc3 Bb7} 11. Qa4+ Qd7 12. Qxd7+ {LiveBook: 3 Games} Nbxd7 13. Bf4 Ke7 14. h3 a6 {[#]} 15. a4 $146 ({Find the theoretical novelty and annotate with similar games:} 15. g4) 15... Ne8 16. Nd2 Ne5 17. Ke2 f5 18. exf5 gxf5 19. Bxe5 Bxe5 20. Nc4 Rb8 21. Rhe1 Bxc3 22. bxc3 Nc7 23. Kf3+ Kd7 24. Re2 b5 {The position is equal.} ({Much weaker is} 24... Nxd5 $6 25. Rd1 $16) 25. axb5 axb5 26. Ne3 Ra8 27. Rea2 Rxa2 28. Rxa2 $11 {[%mdl 4096] Endgame KRN-KRN} Re8 29. g4 fxg4+ 30. hxg4 Re5 31. Rd2 h5 32. gxh5 Rxh5 33. Rd1 Ke7 34. Kg4 Re5 35. Kf4 Kf7 36. Kf3 Rg5 37. Kf4 Kg6 38. Kf3 Rh5 39. Ke4 Ne8 40. Rb1 Nf6+ 41. Kf3 Nxd5 42. Nxd5 Rxd5 43. Rxb5 Rd3+ 44. Ke2 c4 {aiming for ...Kf6.} 45. Rb2 Kf5 46. Rd2 Rxc3 {Precision: White = 71%, Black = 70%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.10"]
[Round "5"]
[White "Onischuk, Alexander"]
[Black "Shankland, Samuel"]
[Result "1/2-1/2"]
[ECO "D85"]
[WhiteElo "2681"]
[BlackElo "2668"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,60,3,33,0,0,0,-5,-29,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,-11,-11,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nxc3 7. Bxc3 O-O 8. Qd2 c5 {D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3} (8... Nc6 9. Ne2 e5 10. d5 Nd4 11. Nxd4 exd4 12. Bxd4 Re8 13. f3 Qxd5 14. Bxg7 Qxd2+ 15. Kxd2 Kxg7 16. Bd3 {½-½ (31) Vallejo Pons,F (2716)-Aronian,L (2795) Novi Sad 2016}) 9. d5 Bxc3 10. bxc3 Qd6 11. f4 Nd7 {LiveBook: 3 Games} 12. e5 Qc7 13. Nf3 c4 14. Rd1 $146 ({Predecessor:} 14. h4 Nb6 15. h5 Bg4 16. hxg6 fxg6 {0-1 (23) Li,R (2366)-Tran,M (2258) Ho Chi Minh City 2016}) 14... Nb6 15. d6 {The position is equal.} exd6 16. exd6 Qc5 17. Qd4 $1 {[%cal Rd4c5]} Qxd4 18. Rxd4 Be6 19. Kf2 Rac8 20. Ng5 Bd5 21. Be2 Rfd8 22. Rhd1 Rc5 23. Ne4 Bxe4 $1 24. Rxe4 Kf8 25. Re5 Na4 26. Rxc5 Nxc5 27. Kf3 Na4 28. Bxc4 Nb2 29. Rd4 {[#] And now Be2 would win.} Nxc4 30. Rxc4 Rxd6 {Precision: White = 70%, Black = 67%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.10"]
[Round "5"]
[White "Ipatov, Alexander"]
[Black "Ganguly, Surya Shekhar"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2665"]
[BlackElo "2657"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,100,27,4,38,33,41,39,17,0,0,0,0,0,0,0,0,0,0,-9,-10,-21,-24,-23,-20,-21,-13,-57,-34,-41,-40,-38,-22,-80,-13,-13,-13,-13,-15,-16,-6,-67,-16,-16,-16,-16,-2,0,-1,-7,-8,-7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 c5 6. O-O Nc6 7. dxc5 Qxd1 8. Rxd1 Bxc5 9. Nbd2 c3 10. bxc3 O-O 11. Nb3 Be7 12. c4 Bd7 13. Bb2 {E04: Open Catalan: 5 Nf3} Rfd8 14. Nfd4 {LiveBook: 45 Games} Rab8 (14... Rac8 15. Nb5 b6 16. Nd6 Bxd6 17. Rxd6 Be8 18. Rxd8 Nxd8 19. Rc1 Bc6 20. c5 Bxg2 21. Kxg2 {½-½ (30) Cheparinov,I (2710)-Anand,V (2782) Riadh 2017}) 15. Nxc6 {White is slightly better.} Bxc6 16. Bxc6 bxc6 17. Be5 $146 ({Find the theoretical novelty and annotate with similar games:} 17. Rxd8+ Rxd8 18. Na5 Rd2 19. Rb1 h6 20. Nxc6 Bc5 21. Bxf6 gxf6 {½-½ (29) De Blois Figueredo,A (2345)-Freytag,W (2381) ICCF email 2014}) 17... Rxd1+ 18. Rxd1 Rb6 19. Bd4 Ra6 20. Bc5 Kf8 $1 21. Rd8+ Ne8 22. e4 Rxa2 23. e5 Bxc5 24. Nxc5 $11 {[%mdl 4096] Endgame KRN-KRN} Ra5 25. Nd3 Ra4 26. Rd7 a5 27. Nc5 Rxc4 28. Nb7 $1 c5 29. Nxa5 {[#]} (29. Kg2 $11) 29... Rc1+ (29... Ra4 $1 $17 {[%cal Ra4a5]} 30. Nb7 c4) 30. Kg2 c4 {...c3 is the strong threat.} 31. Rd4 $1 c3 {Hoping for ...c2.} 32. Rc4 g5 33. h3 (33. Nb3 $11 Re1 34. Nc5) 33... Kg7 ({Black should try} 33... c2 $15 34. Nc6 f6) 34. Nb3 {The position is equal.} Re1 35. Rc8 Kf8 36. f4 $1 gxf4 37. gxf4 Re3 38. Nd4 Re4 39. Nb5 {Threatens to win with Nd6.} c2 ({Don't go for} 39... Rxf4 $2 40. Nd6 $16) 40. Kf3 Rb4 41. Nd6 {[#]} c1=Q $1 {[%mdl 512]} 42. Rxc1 {Strongly threatening Rc8.} Nxd6 43. exd6 {KR-KR} Rd4 44. Rc8+ Kg7 45. Rd8 Kf6 46. Ke3 Rd1 47. Ke4 Rd2 48. Ke3 Rd1 49. Ke4 Rd2 50. Ke3 Rd1 {Precision: White = 61%, Black = 61%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.10"]
[Round "5"]
[White "Xiong, Jeffery"]
[Black "Bruzon Batista, Lazaro"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "2640"]
[BlackElo "2673"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,65,29,57,66,67,48,48,43,45,48,42,43,42,34,54,12,17,16,14,9,16,0,0,4,5,0,0,0,0,-8,-5,0,-3,-17,-11,-35,-16,-48,-31,-31,-27,-34,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Bb5+ Bd7 5. Bxd7+ Nfxd7 {LiveBook: 3 Games} (5... Qxd7 6. dxc5 dxc5 7. Qe2 Qc6 8. Nc3 Nbd7 9. Bf4 a6 10. O-O-O e6 11. Rd2 Be7 12. Rhd1 O-O-O 13. Bd6 Bxd6 14. Rxd6 {1-0 (45) Andreikin,D (2733)-Adly,A (2603) Abu Dhabi 2016}) 6. d5 {B53: Sicilian: 2...d6: Lines with Qxd4} g6 7. c4 Bg7 8. Qc2 $146 {White is slightly better.} ({Predecessor:} 8. O-O Na6 9. Nc3 Nc7 10. Be3 a6 11. a4 b6 12. Qd2 {1-0 (73) Apostoaie,L (2086)-Calotescu,A (2176) Sovata 2000}) 8... Na6 9. O-O Nc7 10. Nc3 a6 11. b3 b5 {[#] ...b4 is the strong threat.} 12. Bb2 {next Nxb5 is good for White.} O-O 13. Nd1 Bxb2 14. Nxb2 e6 15. Rad1 exd5 16. exd5 Re8 17. Qc3 Rb8 18. Rfe1 Qf6 19. Qxf6 (19. Qd2 {feels hotter.} Nb6 20. Rxe8+ Nxe8 21. Re1 bxc4 22. Nxc4 Nxc4 23. bxc4 Ng7 24. Ng5) 19... Nxf6 20. Rxe8+ Ncxe8 21. Nd3 Ne4 22. Rc1 a5 {[%cal Ba6a5,Ba5a4][%mdl 32]} 23. Nb2 Nc7 24. Re1 f5 25. h4 {[#]} a4 $1 {[%mdl 512]} 26. Ng5 $1 {The position is equal.} (26. bxa4 bxc4) 26... a3 27. Nd3 Nxg5 28. hxg5 $11 {KRN-KRN} Kf7 29. Kh2 Re8 30. Rxe8 Kxe8 31. Ne1 Kf7 32. Nc2 b4 33. f4 {Precision: White = 70%, Black = 76%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.10"]
[Round "5"]
[White "Zherebukh, Yaroslav"]
[Black "Akobian, Varuzhan"]
[Result "1/2-1/2"]
[ECO "C18"]
[WhiteElo "2633"]
[BlackElo "2640"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,76,14,0,30,25,32,18,25,22,29,21,18,6,38,32,49,-75,-67,-76,-71,-71,-68,-96,-37,-112,-35,-108,-113,-148,-145,-178,-167,-245,-121,-127,-112,-164,-90,-100,-86,-93,-95,-104,-56,-52,-50,-56,-21,-353,-328,-187,-170,-329,-371,-387,-376,-440,-333,-324,0,-380,0]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 Kf8 8. a4 Qc7 {C18: French: 3 Nc3 Bb4: Main line: 7 h4 and 7 Qg4} 9. Qd1 {LiveBook: 9 Games} Kg8 10. Nf3 b6 {White has an edge.} 11. a5 bxa5 12. Ba3 $146 ({Predecessor:} 12. Bd3 Ba6 13. O-O Bxd3 14. cxd3 cxd4 15. cxd4 Nbc6 16. Ba3 {0-1 (38) Saric,I (2664)-Akobian,V (2647) chess.com INT 2018}) 12... c4 13. Ng5 Nbc6 {Threatening ...Nxe5!} 14. Be2 f6 (14... h6 {is interesting.} 15. Nh3 a4 16. Qd2 Qa5 17. O-O Kh7) 15. Nf3 fxe5 16. Bxe7 (16. dxe5 $14 a4 17. Qd2) 16... Qxe7 $17 17. Nxe5 Nxe5 18. dxe5 Qc7 19. O-O Bd7 ({Reject} 19... Qxe5 $6 {[#]} 20. Bxc4 $1 {[%mdl 512]} Bb7 21. Qe2 $14) (19... h6 $17) 20. Qd4 (20. f4 $15) 20... a4 ({Black should play} 20... h5 $17) 21. Rab1 (21. f4 $1 $15) 21... h6 22. Rb4 a5 23. Rb6 Kh7 24. Bg4 (24. Rd6 {was necessary.}) 24... Rhe8 (24... Rab8 $19 {has better winning chances.} 25. Rxe6 Bxe6 26. Bxe6 Rhe8 27. Bxd5 Qxe5 28. Bxc4 Qxd4 29. cxd4 Rb4 30. Bd3+ g6) 25. Rd6 Rab8 26. f4 (26. h3 $17) 26... a3 (26... Rf8 $19 27. h3 Qc8) 27. Ra1 a4 28. Rxa3 Rb1+ 29. Kf2 Qb7 30. Kg3 Re7 $36 {[%mdl 2048] Hoping for ...Qb2. Black is more active.} 31. Qc5 Rb5 (31... Rf7 $5 {[%cal Rb1f1]}) 32. Rb6 $2 {[%mdl 8192] [#]} (32. Qf2 $11) 32... Qxb6 $19 ({Worse is} 32... Rxc5 33. Rxb7 Rb5 34. Ra7 $16) 33. Qxe7 Qe3+ 34. Bf3 $2 (34. Kh4 {only move.} Qxf4 35. g3 Qg5+ 36. Qxg5 hxg5+ 37. Kxg5) 34... Rb7 35. h4 Qe1+ 36. Kh3 Qh1+ 37. Kg3 Qe1+ 38. Kh3 $1 Qh1+ $2 {Precision: White = 33%, Black = 40%.} (38... Qf2 $19 39. Kg4 Bc6) 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.10"]
[Round "5"]
[White "Edouard, Romain"]
[Black "Swiercz, Dariusz"]
[Result "1/2-1/2"]
[ECO "A20"]
[WhiteElo "2612"]
[BlackElo "2654"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,61,42,3,15,10,18,7,0,-26,-20,-27,0,0,0,0,-4,0,0,0,0,-15,-16,-12,-13,-15,-10,-10,-10,-10,-4,-8,-9,-9,-10,-8,-4,-18,0,0,0,0,0,0,0,0,0,0,22,20,19,24]} 1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nc3 Nxc3 6. bxc3 Bc5 7. Ba3 {LiveBook: 3 Games. A22: English Opening: 1...e5 2 Nc3 Nf6} Bxa3 8. Qa4+ Bd7 9. Qxa3 Bc6 10. Bxc6+ $146 ({Predecessor:} 10. Nf3 Qd6 11. Qxd6 cxd6 12. Rb1 Nd7 13. d3 Rc8 14. Kd2 b6 {½-½ (25) Morley,P (2270)-Bissmann,S (2363) ICCF email 2009}) 10... Nxc6 11. Rb1 b6 (11... Qd5 {seems wilder.} 12. Nf3 O-O-O 13. O-O Rhe8 14. Rfd1 b6) 12. Nf3 {The position is equal.} Qd6 13. Qxd6 cxd6 14. c4 O-O-O 15. d3 Rhe8 16. Ng5 f6 17. Ne4 d5 18. cxd5 Rxd5 19. g4 Kd7 20. Kd2 Rc8 21. Rhc1 Ra5 22. Rb2 Ne7 23. Rxc8 Nxc8 $11 {[%mdl 4096] Endgame KRN-KRN} 24. Nc3 Nd6 25. a4 Kc6 26. Rc2 {With the idea Nb5+.} Rc5 27. Ra2 a6 28. Ra1 Kb7 29. e3 b5 30. axb5 Nxb5 31. Na4 {Precision: White = 76%, Black = 60%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.11"]
[Round "6"]
[White "Bruzon Batista, Lazaro"]
[Black "Ipatov, Alexander"]
[Result "1/2-1/2"]
[ECO "C84"]
[WhiteElo "2673"]
[BlackElo "2665"]
[Annotator "TA"]
[PlyCount "140"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 28,140,20,21,30,37,36,20,27,19,20,20,26,16,13,21,21,22,60,48,44,43,31,45,35,39,11,26,47,47,79,76,85,85,83,83,98,60,59,64,75,0,0,0,0,0,0,-7,0,0,0,0,0,-15,-16,-16,-18,-23,-55,-96,-80,-66,-87,-74,-72,-72,-68,-233,0,-10,-10,-57,0,-212,-204,-204,-204,-191,-57,-57,-57,-58,-58,-57,-58,-58,-58,-58,0,-20,-20,-20,-18,-26,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 {[%cal Bf1b5,Bb5a4,Ba4b3,Bb3a2][%mdl 32]} a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. a4 b4 9. Nbd2 Na5 10. Ba2 O-O 11. c3 Rb8 12. Re1 c5 13. d4 {C88: Closed Ruy Lopez: Anti-Marshall Systems} (13. Nc4 bxc3 14. bxc3 Bd7 15. Qc2 Nxc4 16. Bxc4 Qc8 17. Qa2 Bg4 18. Ng5 Bh5 19. Re3 h6 20. Ne6 Re8 21. Rg3 Bg6 22. Nxg7 d5 23. Nxe8 {1-0 (23) Karjakin,S (2757)-Schlosser,P (2571) Jurmala 2015}) 13... Qc7 14. dxe5 dxe5 15. Nc4 {LiveBook: 9 Games} Nxc4 16. Bxc4 bxc3 17. bxc3 $146 ({Find the theoretical novelty and annotate with similar games:} 17. Qc2 Bb7 18. bxc3 Rfd8 19. Ng5 Rf8 20. Nf3 Rfd8 21. Ng5 {½-½ (21) Garcia Ramirez,C (2016)-Canizares Cuadra,P (2257) ICCF email 2010}) 17... a5 18. Qc2 Nd7 19. Be3 Nb6 20. Bf1 Be6 21. Nd2 h6 22. Reb1 Bg5 23. Bxg5 hxg5 24. Rb5 Qa7 25. c4 {[%cal Bc3c4,Bc4c5][%mdl 32]} Bd7 26. Rxc5 Nxa4 27. Rd5 $1 Rb2 28. Qc1 Rfb8 29. c5 Bc6 30. Rxe5 Qd7 31. Nc4 Qd4 32. Nxb2 (32. Qe1 {NOTEXT} Rc2 33. Rd1 Qc3 34. f3 Bb5 35. Qxc3 Nxc3 36. Ne3) 32... Rxb2 33. Rf5 $1 Bxe4 34. Rxa4 ({Much weaker is} 34. Qxg5 Bxf5 35. Qxf5 g6 $11) (34. Rxg5 $16 Rxf2 35. Kh1) 34... Qxa4 $11 35. Qxb2 Bxf5 36. Qb8+ Kh7 37. Qe5 $132 {[%mdl 2048] White is not keeping still} Qe4 38. Qc3 Qb4 39. Qe5 Qb1 {Hoping for ...Bd3.} 40. Qc3 a4 41. c6 Qb3 42. Qc5 Be6 43. Qxg5 a3 {And now ...a2 would win.} 44. Qh4+ Kg6 {[%mdl 1024] Black has compensation.} 45. c7 {[#]} a2 $1 {[%cal Ra2a1]} 46. Qe4+ f5 47. Qe5 $2 ({White has to play} 47. Qa8 $1 $15) 47... Kh7 $2 (47... Kf7 $19 {aiming for ...Qc2.} 48. Qa5 Qb7) 48. h3 Bd7 {White must now prevent ...Qd1.} 49. Qd4 Qb1 (49... Qe6 $15) 50. Qh4+ $2 (50. c8=Q $1 $11 {and White stays safe.} Bxc8 51. Qh4+ Kg6 52. Qg3+ Kh5 53. Kh2 Qxf1 54. h4) 50... Kg6 $19 51. Qg3+ Kf7 52. Qd6 {[#]} Qxf1+ $1 {[%mdl 512]} 53. Kxf1 $15 a1=Q+ 54. Ke2 Qa2+ 55. Kf3 Bc8 56. Kg3 Qc4 57. f3 {[%cal Bf2f3,Bf3f4][%mdl 32]} g5 (57... Qc3 $15) 58. f4 Qc3+ 59. Kh2 g4 60. h4 Qf6 61. Qd8 $1 {The position is equal.} Qe6 62. h5 Kg7 63. Kg3 Qe1+ 64. Kh2 Qe6 65. Kg3 Bb7 66. Kh4 Qf6+ 67. Kg3 $1 Qc3+ 68. Kh4 {Kg5 is the strong threat.} Qf6+ 69. Kg3 $1 Qe6 {( -> ...Qe1+)} 70. Kh4 Qf6+ {Precision: White = 70%, Black = 63%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.11"]
[Round "6"]
[White "Shankland, Samuel"]
[Black "Zherebukh, Yaroslav"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2668"]
[BlackElo "2633"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,74,29,28,28,35,29,20,29,29,29,30,22,25,25,27,27,29,42,31,24,39,31,11,10,19,54,57,54,52,54,56,53,14,16,14,14,26,31,9,23,3,3,4,12,0,10,9,7,0,0,0,0,-6,-6,-6,-6,-6,-6,-6,-6,-18,-18,-18,-18]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. a3 {LiveBook: 3 Games. B80: Sicilian Scheveningen: 6 g3 and 6 Be3, including English Attack} (7. f3 b5 8. Qd2 b4 9. Na4 Nbd7 10. O-O-O Qa5 11. b3 Bb7 12. a3 Qc7 13. axb4 d5 14. Bf2 Bd6 15. exd5 Nxd5 16. Bg3 {1-0 (36) Nakamura,H (2781)-Grandelius,N (2647) Caleta 2018}) 7... Be7 8. g4 $146 ({Find the theoretical novelty and annotate with similar games:} 8. Qe2 e5 9. Nf5 Bxf5 10. exf5 d5 11. f4 exf4 12. Bxf4 Nc6 13. O-O-O O-O 14. Qf3 d4 {½-½ (38) Fass,R (2425)-De Jong,P (2427) ICCF email 2016}) 8... d5 9. exd5 {White has an edge.} Nxd5 10. Nxd5 Qxd5 11. Rg1 Qa5+ 12. Qd2 Qxd2+ 13. Kxd2 Nd7 14. h3 O-O 15. Rd1 Nf6 16. Bg2 Nd5 17. Nf5 (17. Bxd5 {NOTEXT} exd5 18. Kc1 Be6 19. Nf5 Rfe8 20. Nxe7+ Rxe7 21. Bd4) 17... exf5 18. Bxd5 fxg4 19. hxg4 Be6 20. Bxe6 fxe6 21. Ke2 Rad8 22. Bb6 Rc8 23. c3 Bc5 24. Bxc5 Rxc5 $11 {[%mdl 4096] Endgame KRR-KRR} 25. Rd3 b5 26. Re3 Kf7 {The position is equal.} 27. Rd1 {With the idea Rd7+.} Ke7 28. Rd4 h5 29. gxh5 Rxh5 30. Rg4 g5 31. Rge4 Rf6 32. c4 Rh2 33. Rf3 Rxf3 34. Kxf3 Rh3+ 35. Kg2 Rb3 36. cxb5 axb5 37. a4 bxa4 {Precision: White = 66%, Black = 79%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.11"]
[Round "6"]
[White "Swiercz, Dariusz"]
[Black "Ganguly, Surya Shekhar"]
[Result "1/2-1/2"]
[ECO "B47"]
[WhiteElo "2654"]
[BlackElo "2657"]
[Annotator "TA"]
[PlyCount "159"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,158,31,34,29,34,35,38,43,78,77,82,82,114,59,83,93,96,88,133,102,122,127,212,210,211,170,202,118,88,96,101,114,137,133,145,93,110,0,5,0,0,0,0,0,0,0,0,0,20,7,29,10,61,54,96,90,108,81,227,211,205,56,355,340,514,514,1080,14,14,14,18,20,41,56,61,39,12842,12839,12840,12840,12841,0,0,0,12841,12841,12843,2019,2888,1894,1776,932,982,0,12843,12843,12843,12843,12844,12844,12845,12845,12847,12847,12847,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. g3 a6 7. Bg2 Nf6 8. O-O d6 9. Nxc6 bxc6 10. Na4 Bb7 {B80: Sicilian Scheveningen: 6 g3 and 6 Be3, including English Attack} (10... Rb8 11. c4 c5 12. g4 h6 13. f4 Be7 14. b3 Bb7 15. Qe2 Nh7 16. Bb2 O-O 17. Rf3 Bc6 18. Nc3 {0-1 (43) Santos Ruiz,M (2490)-Fedorchuk,S (2633) Linares 2017}) 11. c4 c5 12. Qe2 Be7 13. b3 O-O 14. Bb2 Nd7 {LiveBook: 3 Games} 15. Rad1 Bc6 16. Nc3 Bf6 17. Nb1 $146 ({Predecessor:} 17. f4 Bd4+ 18. Kh1 {0-1 (33) Pacher,M (2408)-Cvek,R (2506) Brno 2011}) 17... a5 18. Bxf6 Nxf6 19. Nc3 a4 20. e5 (20. Nxa4 $16 h6 21. Nc3) 20... dxe5 21. Bxc6 Qxc6 22. Nxa4 Rfd8 23. Qxe5 Ne4 {White must now prevent ...f6.} 24. Qf4 e5 (24... Rd4 $16) 25. Qf3 $18 (25. Qxe5 $6 Nd2 $16) 25... Qg6 26. h4 f5 27. Nc3 (27. Rxd8+ $18 Rxd8 28. Rd1) 27... Nxc3 $16 28. Rxd8+ Rxd8 29. Qxc3 {[%mdl 4096] Endgame KQR-KQR} e4 30. Qe5 h6 31. Re1 ({White should play} 31. a4) 31... Rd3 32. Kg2 (32. Qxc5 $6 Rxg3+ 33. fxg3 Qxg3+ 34. Kf1 Qh3+ 35. Kf2 Qf3+ 36. Kg1 Qg3+ 37. Kf1 Qh3+ 38. Kg1 Qg4+ 39. Kf2 (39. Kf1 Qh3+ $11) 39... Qf3+ 40. Kg1 Qg3+ $11) (32. a4 $16) 32... Qh5 $11 33. Qf4 (33. Qxc5 $2 Qf3+ 34. Kg1 e3 $19) 33... Rf3 $1 {[%cal Rf3f4]} 34. Qd2 Rd3 35. Qf4 $36 {[%mdl 2048] White has good play.} Rf3 $1 {[%cal Rf3f4]} 36. Qd2 {And now Qd5+ would win.} Rd3 37. Qe2 Rf3 38. a4 Qg6 39. a5 Rxb3 (39... Kh7 $11) 40. Qa2 $14 Rb7 {[#]} 41. Qd2 $1 Qc6 42. Rd1 Kh7 (42... e3+ $16 43. Qd5+ Qxd5+ 44. Rxd5 (44. cxd5 Ra7 $14) 44... Rb2) 43. Qd5 $18 Qc8 44. g4 (44. a6 $18 Ra7 45. Ra1) 44... g6 $2 {[%mdl 8192]} (44... e3 $1 $14) 45. Qe5 Rf7 (45... e3 $142 46. Qxe3 fxg4) 46. Rd6 fxg4 {[#]} (46... h5 $142 47. gxh5 gxh5) 47. Qxe4 $2 ({Only move:} 47. h5 $1 $18 {[%cal Rh5g6]} gxh5 48. a6) 47... Rxf2+ $1 $11 48. Kxf2 Qf8+ 49. Kg2 Qxd6 {KQ-KQ} 50. h5 Qd2+ $1 51. Kg3 Qxa5 $2 {[%mdl 8192]} (51... Qd6+ $14 52. Kxg4 Qd1+ 53. Kf4 Qxh5) 52. Qe7+ Kg8 53. Qe8+ Kg7 54. Qe7+ $2 (54. Qxg6+ $18 Kf8 55. Qxh6+ Kg8 56. Qg6+ Kh8 57. Kxg4) 54... Kg8 $1 55. Qe6+ Kg7 $2 {[%mdl 8192]} (55... Kf8 $11) 56. Qxg6+ $18 Kh8 57. Qf6+ (57. Qxh6+ $142 Kg8 58. Qg6+ Kh8 59. Qf6+ (59. Qxg4 Qc3+ 60. Kg2 Qb2+ 61. Kg1 Qc1+ 62. Kf2 Qd2+ 63. Qe2 Qg5 $11) 59... Kg8 60. Qg6+ Kh8 61. Qf6+ (61. Qxg4 Qc3+ 62. Kf2 Qd2+ 63. Kg3 Qc3+ 64. Kg2 Qc2+ 65. Kh3 Qc3+ 66. Kh2 Qb2+ 67. Kh3 Qc3+ 68. Kh4 Qf6+ 69. Kg3 Qc3+ $14) 61... Kh7 62. Qf5+ Kg7 63. Qe5+ Kh7 64. Qe7+ Kh6 65. Kxg4) 57... Kh7 58. Qf7+ Kh8 59. Qe8+ Kg7 60. Qg6+ (60. Qe7+ $142 Kh8 61. Qf6+ (61. Kxg4 Qb6 $16) 61... Kg8 62. Qg6+ (62. Qxh6 Qc3+ 63. Kxg4 Qxc4+ 64. Kf3 Qd3+ 65. Kg2 Qf5 $11) (62. Kxg4 Qd2 $16) 62... Kh8 63. Qxh6+ Kg8 64. Kxg4) 60... Kh8 $1 61. Qxh6+ Kg8 62. Qg6+ Kh8 63. Qf6+ Kh7 64. Kxg4 Qc7 65. h6 Qb7 66. Qg7+ $2 ({White should try} 66. Kf4 $18 {Strongly threatening Qg7+!} Qc7+ 67. Qe5 Qf7+ 68. Ke3 Kxh6 69. Qxc5) 66... Qxg7+ $11 {The position is equal.} 67. hxg7 Kxg7 {KP-KP} 68. Kg5 Kf7 69. Kf5 Ke7 70. Ke5 Kd7 71. Kd5 Kd8 72. Kd6 Kc8 73. Kc6 Kb8 74. Kxc5 {KP-K} Kc7 75. Kd5 {White threatens Kc5 and mate.} Kd7 76. c5 {[%cal Bc4c5,Bc5c6,Bc6c7][%mdl 32]} Kc7 77. c6 Kc8 78. Kd6 {White wants to mate with c7.} Kd8 79. c7+ Kc8 80. Kc6 $2 {[%mdl 8192] Precision: White = 59%, Black = 45%.} (80. Kd5 Kxc7) 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.11"]
[Round "6"]
[White "Akobian, Varuzhan"]
[Black "Xiong, Jeffery"]
[Result "0-1"]
[ECO "D85"]
[WhiteElo "2640"]
[BlackElo "2640"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,72,-12,-4,0,-9,0,-8,-10,-6,-24,0,0,-11,-28,-17,-35,-37,-32,-33,-63,-46,-55,-51,-85,-72,-115,-73,-105,-106,-153,-147,-159,-154,-166,-160,-152,-170,-162,-171,-168,-158,-202,-202,-192,-178,-219,-219,-228,-177,-165,-149,-450,-471]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Ba3 Nd7 {[%cal Bb8d7,Bd7b6,Bb6c4][%mdl 32] D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3} 8. Bc4 c5 9. Qb3 O-O 10. Nf3 cxd4 11. cxd4 Nb6 {LiveBook: 9 Games} 12. Be2 Be6 13. Qb4 Rc8 14. O-O Bc4 15. Rfe1 Bxe2 ({Much weaker is} 15... Bxd4 $6 16. Rad1 $16) 16. Rxe2 {[#]} Nc4 $146 17. Rd1 Qd7 18. Bc1 ({Reject} 18. Qxe7 Qa4 $17) 18... a5 $36 {[%mdl 2048] Black has some pressure.} 19. Qb3 b5 20. Rc2 Rfd8 21. h3 h6 22. d5 e6 23. h4 Qe8 24. Re1 exd5 25. exd5 Qd7 26. Rd1 Qf5 27. a4 Rxd5 28. Rxd5 Qxd5 29. axb5 Qd1+ $1 30. Kh2 {Black must now prevent Nd2.} Bf8 $1 {Hoping for ...Nd6.} 31. Rc3 {[#]} Qxb3 $1 32. Rxb3 {[#]} a4 $1 {[%cal Ra4b3,Ba5a4,Ba4a3,Ba3a2][%mdl 32]} 33. Rb1 a3 34. b6 Bg7 ({Resist} 34... a2 35. Ra1 $17) 35. b7 Rb8 {...a2 is the strong threat.} 36. Bf4 $2 {[%mdl 8192]} (36. Bxa3 $17 Nxa3 37. Rb6) 36... a2 {Precision: White = 41%, Black = 89%.} 0-1

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.11"]
[Round "6"]
[White "Edouard, Romain"]
[Black "Onischuk, Alexander"]
[Result "1-0"]
[ECO "A14"]
[WhiteElo "2612"]
[BlackElo "2681"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 28,93,29,31,56,32,83,76,110,109,122,123,123,120,104,118,118,104,178,178,178,178,178,178,178,178,178,179,235,229,290,290,288,281,281,279,357,364,334,332,317,317,366,351,373,373,373,373,373,373,592,679,675,692,634,670,649,617,602,614,948,920,1084,1014,1282,1241,1269,1224]} 1. c4 e6 2. g3 Nf6 3. Bg2 d5 4. Nf3 Be7 5. O-O O-O 6. d4 dxc4 7. Qc2 a6 8. a4 Bd7 9. Qxc4 Bc6 10. Bg5 Bd5 11. Qd3 Be4 12. Qe3 Bc6 {E05: Open Catalan: 5 Nf3 Be7} (12... Nbd7 13. Nc3 Bg6 14. Ne5 c6 15. Nxg6 hxg6 16. Qc1 Rc8 17. Rd1 Nd5 18. Bd2 a5 19. e4 Nb4 20. Be3 {1-0 (47) Xiu,D (2557)-Fedoseev,V (2674) China 2015}) 13. Nc3 Nbd7 14. Qd3 h6 15. Bxf6 {LiveBook: 3 Games} Bxf6 16. Rfd1 Qe7 (16... Bxf3 $14 17. Bxf3 (17. Qxf3 c6 $11) 17... c6) 17. e4 $16 {aiming for e5.} Qb4 $146 ({Find the theoretical novelty and annotate with similar games:} 17... Rfd8 18. Qc2 Nb6 19. e5 Bxf3 20. Bxf3 {1-0 (32) De Prado Rodriguez,O (2230)-Suarez Pousa,D (2330) La Coruna 1996}) 18. Qc2 $1 {Hoping for d5.} Nb6 19. a5 Nd7 20. d5 exd5 21. Nxd5 Bxd5 ({Wrong is} 21... Qxb2 $2 22. Ne7+ $1 {[%mdl 512]} Kh8 23. Qxb2 $18) 22. Rxd5 Rfd8 (22... Rad8 $16 {might work better.}) 23. e5 $18 (23. Qxc7 Rac8 $11) 23... Nxe5 24. Rxe5 Bxe5 25. Nxe5 c6 26. Qf5 Qe7 {[#]} 27. Re1 $1 $36 {[%mdl 2048] White is in control.} Re8 (27... Qf6 $142 28. Qxf6 gxf6) 28. Re3 Qf6 29. Qxf6 gxf6 30. Nd7 Rxe3 31. fxe3 ({Not} 31. Nxf6+ Kg7 $11) 31... Rd8 32. Bh3 (32. Nxf6+ Kf8 $14) 32... Kg7 33. Kf2 h5 34. Bf5 Rh8 35. Ke2 h4 36. g4 h3 37. Kf3 Rd8 38. b4 Kh6 (38... Re8 $142 39. Nc5 Kg8) 39. Kg3 {White is clearly winning.} Re8 40. e4 Kg5 41. Kxh3 Kf4 42. Kg2 Rh8 43. h3 {[%cal Bh2h3,Bh3h4,Bh4h5][%mdl 32]} Ke3 44. Kg3 Kd4 45. h4 Kc3 46. h5 Kxb4 47. Nxf6 {Precision: White = 99%, Black = 45%.} 1-0

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.12"]
[Round "7"]
[White "Onischuk, Alexander"]
[Black "Swiercz, Dariusz"]
[Result "1/2-1/2"]
[ECO "D85"]
[WhiteElo "2681"]
[BlackElo "2654"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,62,22,18,14,4,-3,-16,10,12,18,0,0,0,0,-1,11,12,25,22,27,25,23,28,30,0,0,0,0,0,0,-5,-5,-8,0,0,0,0,0,-12,-6,-12,-12,-12,-12,-12,-12,-12,-12,-34,57]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Nb6 6. Nf3 Bg7 7. Bf4 O-O 8. e3 {LiveBook: 63 Games} Be6 {D90: Grünfeld: 4 Nf3 Bg7 sidelines} (8... Bg4 9. h3 Bxf3 10. Qxf3 c6 11. Be2 N8d7 12. Bg5 Qe8 13. O-O e5 14. Rfe1 h6 15. Bh4 f5 16. Bd1 {½-½ (45) Eljanov,P (2719)-Swiercz,D (2614) Germany 2015}) 9. Be2 c5 10. dxc5 {[#] Black must now prevent Qxd8.} N6d7 $146 {The position is equal.} ({Predecessor:} 10... Bxc3+ 11. bxc3 Qxd1+ 12. Bxd1 N6d7 13. Nd4 Bd5 14. O-O Rc8 15. Bg4 f5 16. Bf3 Bxf3 17. Nxf3 Rxc5 {1-0 (32) Manea,A (2399)-Julien,J (2081) Sautron 2017}) 11. Nd4 Nxc5 12. Nxe6 Nxe6 13. Bg3 Nc6 14. O-O Nc5 15. Rc1 {[%cal Ba1c1,Bc1c3,Bc3d3,Bd3d7][%mdl 32]} Bxc3 16. Rxc3 Ne4 17. Rd3 Nxg3 18. hxg3 Qc7 19. Rd7 Qb6 20. Qb3 Qxb3 21. axb3 Rab8 22. Bf3 e6 23. Rc1 Rfd8 24. Bxc6 bxc6 25. Rxd8+ Rxd8 26. Rxc6 $11 {[%mdl 4096] Endgame KR-KR} Rd1+ 27. Kh2 Rd2 28. Kg1 Rxb2 29. Ra6 Rxb3 30. Rxa7 h5 31. Ra4 Rb1+ {Precision: White = 38%, Black = 70%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.12"]
[Round "7"]
[White "Ipatov, Alexander"]
[Black "Akobian, Varuzhan"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "2665"]
[BlackElo "2640"]
[Annotator "TA"]
[PlyCount "136"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,136,13,12,3,39,35,39,26,87,63,52,72,64,55,69,76,81,74,82,20,22,18,25,18,23,12,8,0,0,0,0,0,41,0,0,0,13,0,0,0,24,22,35,-179,-164,-150,-16,-13,0,0,0,0,0,0,0,0,0,-13,-10,-594,-577,-444,-561,-558,-533,-480,-387,-376,-383,-381,-388,-387,-383,-400,-400,-399,-398,-395,-388,-377,-350,-988,-677,-1028,-744,-1019,-1029,-886,-920,-1067,-984,-1014,-1007,-936,-825,-5473,-5273,-29954,-29955,-11062,-1802,-29955,-29953,-29959,-29958,-29960,-29961,-29961,-29963,-29964,-29963,-29962,-29963,-29958,-29963,-29956,-29955,-7044,-7181,-29964,-12527,-29981,-29982,-29982,-29983,-29983,-29984]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 Be7 5. Qc2 h6 6. Bxf6 {D30: Queen's Gambit Declined: Systems without Nc3} Bxf6 {LiveBook: 4 Games} 7. e3 c5 8. cxd5 {White is slightly better.} cxd4 9. Bb5+ Ke7 $146 (9... Nd7 $11 10. Nxd4 exd5) ({Predecessor:} 9... Bd7 10. dxe6 Qa5+ 11. Nbd2 Qxb5 12. exd7+ Nxd7 {1-0 (40) Nakamura,H (2775)-Adams,M (2745) London 2014}) 10. exd4 exd5 11. O-O Be6 12. Re1 Qd6 13. Nc3 Nc6 14. Bxc6 Qxc6 15. Ne5 (15. Rac1 $16) 15... Bxe5 $1 $11 16. Rxe5 {aiming for Nxd5+.} f6 $1 {[%cal Rf6e5]} 17. Re3 Rhe8 $1 18. Qh7 Kf8 $1 19. Rg3 {[%csl Gg3][%cal Rh7g7]} Re7 20. h3 Bg8 21. Qh8 Qe6 22. Rc1 Rc8 23. Kh2 Rcc7 24. Rf3 Qd6+ 25. g3 {Hoping for Nb5.} a6 26. Rf5 Qe6 27. Rxd5 $2 (27. g4 $1 $14 {keeps the upper hand.}) 27... Re8 $19 28. Rh5 b5 ({Better is} 28... f5 $1 $17 {...Qg6 is the strong threat.} 29. Rf1 Qg6) 29. d5 $1 $11 {[%cal Rd5e6]} Qb6 30. Rf5 b4 31. d6 $1 Qxd6 32. Nd5 $1 Rxc1 {[#]} 33. Nxf6 $1 {[%mdl 512]} Ke7 (33... gxf6 34. Rxf6+) 34. Qxg7+ Kd8 35. Nxe8 $4 {[%mdl 8192] [#]} (35. Nxg8 $11 Qc6 36. g4) 35... Bd5 $1 $19 {[%mdl 512]} 36. Rxd5 Qxd5 {[%csl Gc1][%cal Rd5h1]} 37. Qf6+ Kxe8 {[%csl Gc1][%cal Rd5h1][%mdl 4096] Endgame} 38. Qh8+ Kd7 {[%csl Gc1][%cal Rd5h1]} 39. Qg7+ {[#]} Kc8 $1 {[%csl Gc1][%cal Rd5h1]} 40. Qf8+ Kb7 {[%csl Gc1][%cal Rd5h1]} 41. Qxb4+ Qb5 42. Qd2 Qc6 {[%csl Gc1][%cal Rc6h1]} 43. Qb4+ Qb6 44. Qe7+ Rc7 45. Qe2 Rf7 46. f4 $2 (46. Kg1) 46... Rc7 47. g4 Qb5 48. Qe4+ Qc6 49. Qb4+ Qb6 50. Qe4+ Kb8 51. Qe8+ Ka7 {( -> ...Qf2+)} 52. Qe2 Qc5 53. Kg3 Re7 54. Qd2 Qe3+ 55. Qxe3+ Rxe3+ {KR-KP} 56. Kh4 Kb7 57. g5 hxg5+ 58. fxg5 Kc7 59. g6 Re2 60. Kg5 Kd7 61. g7 Ke7 62. g8=N+ {KR-KN} Ke6 63. Nf6 Rg2+ 64. Ng4 Rxb2 65. h4 Rxa2 66. h5 Rg2 {Black mates.} 67. h6 Kf7 68. Kf5 Rxg4 {Precision: White = 45%, Black = 70%.} 0-1

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.12"]
[Round "7"]
[White "Ganguly, Surya Shekhar"]
[Black "Bruzon Batista, Lazaro"]
[Result "0-1"]
[ECO "C55"]
[WhiteElo "2657"]
[BlackElo "2673"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,64,33,26,25,31,36,18,29,27,31,10,18,9,9,-22,-6,-14,-3,-67,-64,-64,-53,-66,-70,-107,-90,-98,-95,-116,-118,-548,-547,-545,-547,-540,-524,-910,-866,-793,-612,-612,-612,-599,-588,-588,-596,-592,-573,-563,-540]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Re1 d6 7. a4 Be6 8. Nbd2 Bxc4 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack} (8... Qd7 9. c3 h6 10. b4 Nh7 11. b5 Na5 12. Bxe6 fxe6 13. Nc4 Nxc4 14. dxc4 Nf6 15. Ba3 Rad8 16. Qe2 b6 17. a5 {½-½ (52) Stevic,H (2608)-Postny,E (2619) Baku 2016}) 9. Nxc4 {LiveBook: 3 Games} Re8 10. Bd2 $146 ({Find the theoretical novelty and annotate with similar games:} 10. c3 Qd7 11. Qb3 Rab8 12. Bg5 h6 13. Bxf6 Bxf6 14. Ne3 g6 15. Rad1 Bg7 16. h4 {1-0 (30) Cori Tello,J (2486)-Sbarra,M (2319) Collado Villalba 2010}) 10... a5 {White is slightly better.} 11. h3 b6 12. c3 h6 13. Qb3 Bf8 14. Rad1 d5 15. Ne3 {[%cal Re4d5]} dxe4 16. dxe4 Nxe4 17. Bc1 ({Better is} 17. Qc4 $1 $11 Nc5 18. b4) 17... Nd6 $1 $15 18. Qd5 Qd7 19. Nc4 Rad8 20. Nfxe5 Nxe5 21. Nxe5 Qxa4 22. c4 Qc2 23. g4 $2 {[%mdl 8192] [#]} (23. Kf1 $17 {is a better chance.}) 23... Rxe5 $1 $19 {[%mdl 512] Black is clearly winning.} 24. Qxe5 Ne4 $1 25. Bd2 Nxd2 (25... Rxd2 $2 26. Rc1 $17) 26. Qf4 g5 27. Qf5 Qxf5 28. gxf5 Rd3 29. Kh1 Bd6 30. Kg2 Kg7 31. Re8 Rd4 32. Rc8 Nf3 {Precision: White = 25%, Black = 88%.} 0-1

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.12"]
[Round "7"]
[White "Xiong, Jeffery"]
[Black "Shankland, Samuel"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2640"]
[BlackElo "2668"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,83,15,14,11,10,6,10,6,40,43,45,38,46,41,55,33,76,28,21,30,28,32,24,22,45,31,29,17,8,8,45,0,0,0,0,0,0,0,0,0,0,0,191,181,310,301,309,297,272,264,232,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 g6 3. Nbd2 Bg7 4. e4 d6 5. Bd3 O-O 6. O-O Nc6 7. c3 e5 8. dxe5 Nxe5 9. Nxe5 dxe5 10. Nc4 Qe7 {LiveBook: 21 Games} 11. Qe2 {B07: Pirc Defence: Miscellaneous Systems} (11. a4 Nh5 12. Re1 Nf4 13. Bxf4 exf4 14. e5 Be6 15. Bf1 Qg5 16. Nd2 Rfd8 17. Nf3 Rxd1 18. Nxg5 Rxe1 19. Rxe1 {0-1 (89) Fontaine,R (2546)-Nakamura,H (2701) Le Port Marly 2009}) 11... Rd8 12. Bg5 h6 13. Bh4 b6 $146 ({Predecessor:} 13... Be6 14. b4 g5 15. Bg3 Nh5 16. Qxh5 Rxd3 17. Nxe5 Rxg3 18. fxg3 Bxe5 19. Qxh6 Bg4 20. Rf5 Bxf5 21. exf5 Bxc3 {0-1 (30) Buriani,A (2081)-Sfera,M (2000) Vignola 2012}) 14. Rfd1 Bb7 15. Ne3 a5 16. a4 h5 17. Bc4 Bh6 18. f3 Rxd1+ 19. Rxd1 Rd8 {Hoping for ...Bxe3+.} 20. Nd5 Bxd5 $1 21. Bxd5 g5 22. Bf2 Nxd5 23. Rxd5 Rxd5 24. exd5 f5 25. g4 hxg4 26. fxg4 f4 27. Qe4 Bg7 28. Kg2 Qd7 29. h3 Kf7 30. Kf3 Kf6 $2 {[#]} (30... b5 $11 {and Black stays safe.}) 31. b3 $1 $18 Ke7 (31... Kf7 {might work better.}) 32. c4 Qd6 33. Qh7 Kf7 34. Qf5+ Kg8 {[#]} 35. Ke4 $2 ({Weaker is} 35. Qxg5 c6 $11) (35. Qe6+ $1 $18 Qxe6 36. dxe6) 35... Qb4 $11 {The position is equal.} 36. Qe6+ Kh7 37. Kf5 Qxb3 38. Qg6+ Kg8 39. Qe8+ Kh7 40. Qh5+ Kg8 41. Qe8+ Kh7 42. Qg6+ {Precision: White = 73%, Black = 64%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.12"]
[Round "7"]
[White "Zherebukh, Yaroslav"]
[Black "Edouard, Romain"]
[Result "1/2-1/2"]
[ECO "B38"]
[WhiteElo "2633"]
[BlackElo "2612"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,61,29,51,42,53,35,25,30,30,30,18,17,27,0,0,0,0,0,0,0,3,0,0,0,0,0,3,-14,-4,-24,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 d6 8. Be2 O-O 9. O-O Bd7 10. Nb3 a5 11. Nd2 {B38: Sicilian: Maroczy Bind with 5...Bg7 and 7...0-0} (11. c5 a4 12. Nd2 a3 13. cxd6 axb2 14. Rb1 exd6 15. Nc4 Be6 16. Bb6 Qe7 17. Qxd6 Bxc4 18. Qxe7 Nxe7 19. Bxc4 {1-0 (43) Ragger,M (2698)-Guseinov,G (2634) Berlin 2015}) 11... Bc8 12. Rc1 Nd7 13. Nb3 a4 {LiveBook: 3 Games} 14. Nd4 Nxd4 15. Bxd4 Bxd4 16. Qxd4 Qb6 $146 ({Predecessor:} 16... b6 17. Bg4 Nc5 18. Bxc8 Rxc8 {½-½ (30) Hansen,C (2595)-Holst,A (2365) Taastrup 1998}) 17. Qxb6 Nxb6 18. f4 Be6 19. Nb5 Rfc8 {[%cal Re6c4]} 20. b3 axb3 21. axb3 Bd7 22. Nd4 Ra2 23. e5 dxe5 24. fxe5 e6 25. Bf3 Bc6 26. Nxc6 bxc6 27. Rfd1 Ra7 28. Rd6 {The position is equal.} Rac7 29. b4 Kf8 30. c5 Nd5 31. Bxd5 {Precision: White = 72%, Black = 83%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.13"]
[Round "8"]
[White "Onischuk, Alexander"]
[Black "Zherebukh, Yaroslav"]
[Result "1/2-1/2"]
[ECO "D85"]
[WhiteElo "2681"]
[BlackElo "2633"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,61,27,27,54,35,15,16,11,32,26,30,27,21,13,15,18,18,19,8,11,8,8,8,8,8,8,8,2,2,8,0,0,0,3,0,6,0,0,0,11,0,4,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nxc3 7. Bxc3 O-O 8. Qd2 c5 {D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3} (8... Nc6 9. Ne2 e5 10. d5 Nd4 11. Nxd4 exd4 12. Bxd4 Re8 13. f3 Qxd5 14. Bxg7 Qxd2+ 15. Kxd2 Kxg7 16. Bd3 {½-½ (31) Vallejo Pons,F (2716)-Aronian,L (2795) Novi Sad 2016}) 9. d5 e6 10. Bc4 Bxc3 11. bxc3 {LiveBook: 21 Games} a6 $146 ({Predecessor:} 11... b5 12. Bxb5 exd5 13. exd5 Bb7 14. c4 Nd7 15. Bxd7 Qxd7 16. Ne2 {1-0 (37) Shirov,A (2656)-Kulaots,K (2573) Viljandi 2017}) 12. dxe6 Bxe6 13. Bxe6 fxe6 14. Nf3 Qxd2+ 15. Kxd2 Nd7 16. Ke3 b5 {The position is equal.} 17. a4 Rfb8 18. axb5 axb5 19. Rxa8 Rxa8 $11 {[%mdl 4096] Endgame KRN-KRN} 20. Rb1 Ra3 21. Rxb5 Rxc3+ 22. Kd2 Ra3 23. Rb7 Nf6 24. Ng5 {Rb8+ is the strong threat.} e5 25. Rb8+ Kg7 26. Rb7+ Kg8 27. Rb8+ Kg7 28. Ne6+ Kf7 29. Ng5+ Kg7 30. Ne6+ Kf7 31. Ng5+ {Precision: White = 84%, Black = 89%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.13"]
[Round "8"]
[White "Shankland, Samuel"]
[Black "Ipatov, Alexander"]
[Result "1/2-1/2"]
[ECO "A40"]
[WhiteElo "2668"]
[BlackElo "2665"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,78,71,83,41,45,43,43,49,55,53,56,27,36,6,6,-53,-58,-50,-50,-48,-18,-86,-54,-56,-25,-37,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-4,-4,-6,-3,-8,0,-8,-8,-4,0,0,0,-41,-22,-67,-69,-53,-8,-8,-8,-2,-4,-7,0,-15,0,0,0]} 1. d4 Na6 (1... Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. cxd5 Qxd5 6. e3 c5 7. Bd2 Bxc3 8. Bxc3 cxd4 9. Bxd4 Nc6 10. Bc3 O-O 11. Nf3 Rd8 12. Be2 Qe4 13. Rc1 Qxc2 14. Rxc2 Nd5 15. Ne5 Bd7 16. Nxc6 Bxc6 17. Bd2 Ne7 18. f3 {½-½ (38) Mamedyarov,S (2804)-Carlsen,M (2834) Wijk aan Zee 2018}) 2. c4 e5 $146 ({Predecessor:} 2... c6 3. Nc3 d6 4. e4 e5 5. d5 Be7 6. f4 exf4 7. Bxf4 Nf6 8. Bd3 Nc5 9. Bc2 {1-0 (22) Monell Camarasa,D (2340)-Monfa Sole,R (2160) Tornabous 2014}) 3. dxe5 d6 4. Nf3 Bf5 5. Bg5 Qd7 6. Nc3 {aiming for e4. A40: Unusual replies to 1 d4} dxe5 $1 7. Qxd7+ ({But not} 7. Nxe5 Qxd1+ 8. Rxd1 f6 $15) 7... Bxd7 8. Nxe5 {White is slightly better.} Be6 $1 9. Bf4 O-O-O 10. e3 (10. a3 {feels hotter.} f6 11. Nf3 Bxc4 12. e3 Bxf1 13. Kxf1 Ne7 14. Ke2) 10... Nf6 11. Be2 {next a3 is good for White.} Bb4 $1 12. O-O (12. Rc1 $11) 12... Bxc3 $1 $15 13. bxc3 Ne4 $1 14. Rfc1 Rd2 {[%mdl 1024] Black has compensation.} 15. Bf3 (15. Re1 $1 $11 {keeps the balance.}) 15... f5 16. Bg3 {[%cal Bf4g3,Bg3h4,Bh4e7][%mdl 32]} Rhd8 {[%cal Bh8d8,Bd8d6,Bd6b6,Bb6b2,Bb2d2][%mdl 32]} 17. Bh4 R8d6 18. Be7 Rb6 19. Rd1 Rbb2 20. Bxe4 fxe4 21. Rxd2 Rxd2 22. Kf1 Nb8 23. Ke1 Rc2 24. Rd1 {[%csl Ge7][%cal Rd1d8] [#]} Nd7 25. Nxd7 Bxd7 $11 {[%mdl 4096] Endgame KRB-KRB} 26. Rd4 Rxa2 27. Rxe4 Ra1+ 28. Kd2 Ra2+ 29. Ke1 a5 30. Rh4 a4 31. Rxh7 {Black must now prevent Rh8+.} b6 32. Rh8+ Kb7 33. Rd8 Ra1+ 34. Ke2 $1 Be6 {[#] Threatens to win with ...a3.} 35. Rd1 $1 {[%cal Rd1a1] The position is equal.} Bxc4+ 36. Ke1 $1 $132 {[%mdl 2048] White is not keeping still} Ra2 37. Rd2 $1 Ra1+ 38. Rd1 Ra2 39. Rd2 $1 Ra1+ {Precision: White = 69%, Black = 71%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.13"]
[Round "8"]
[White "Swiercz, Dariusz"]
[Black "Bruzon Batista, Lazaro"]
[Result "1/2-1/2"]
[ECO "B94"]
[WhiteElo "2654"]
[BlackElo "2673"]
[Annotator "TA"]
[PlyCount "111"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,111,0,0,0,0,0,0,0,-16,67,14,83,103,111,74,96,75,67,70,102,106,106,119,91,94,116,61,207,211,210,171,229,225,243,191,256,233,227,253,249,233,237,245,252,238,249,238,251,232,252,250,344,320,400,17,38,0,374,0,31,42,29,35,37,40,328,23,60,0,12,11,1215,0,24,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Bc4 Qb6 {B94: Sicilian Najdorf: 6 Bg5 Nbd7} (7... h6 8. Bh4 g6 9. Qe2 e5 10. Nb3 Be7 11. a4 Nb6 12. Bd3 Be6 13. a5 Nbd7 14. Bc4 Rc8 15. Bxe6 fxe6 16. O-O {1-0 (79) Nepomniachtchi,I (2751)-Fedoseev,V (2724) Moscow 2018}) 8. Bb3 e6 9. Qd2 Be7 10. O-O-O Nc5 11. f3 Qc7 12. g4 {LiveBook: 13 Games} b5 13. a3 Bd7 14. Ba2 Rb8 15. b4 $146 ({Predecessor:} 15. Rhe1) 15... Nb7 (15... Na4 $11 16. Nxa4 bxa4) 16. Be3 (16. h4 $14) 16... Rc8 (16... O-O $1 $11 {remains equal.}) 17. Kb2 $16 O-O 18. h4 a5 19. g5 Nh5 20. Ncxb5 Qb8 $1 21. Na7 $1 $36 {[%cal Ra7c8][%mdl 2048] Keeping Black busy.} Rc7 {Hoping for ...Nc5.} (21... Qxa7 $2 22. Nc6 $1 $18 {[%mdl 512]}) 22. Ndb5 $1 {[%cal Rb5c7]} Bxb5 23. Nxb5 Rd7 24. Nd4 (24. Bb3 $16) 24... Nd8 (24... axb4 $1 $14 25. axb4 Rc8 26. Nxe6 d5) 25. c3 $18 g6 26. Rhe1 Qa8 (26... e5 $142) 27. Bb3 Ng7 28. Qc2 d5 (28... Rb7 $142 29. f4 e5) 29. f4 Rc7 30. exd5 axb4 31. axb4 Bxb4 32. Nb5 $1 {[%cal Rb5c7]} (32. cxb4 Rxc2+ 33. Nxc2 exd5 $14) 32... Rc8 33. Qf2 $1 Ba5 34. Bc5 Qb8 35. Bxf8 Kxf8 36. dxe6 Ngxe6 37. Re5 Nc6 38. Red5 $2 (38. Rd7 $18 Nxe5 39. fxe5) 38... Ne7 $1 $11 39. Re5 $2 {[%mdl 8192]} (39. Qe3 $14 Nxd5 40. Rxd5) 39... Nc6 $1 $18 {[%cal Rc6e5]} 40. Red5 $2 (40. Rd7 $18) 40... Ne7 $1 $14 41. Qe3 (41. Re5 Nc6 $16) 41... Nxd5 42. Rxd5 {aiming for f5.} Bb6 43. Qe4 {Rd7 is the strong threat.} Rc5 $2 {[%mdl 8192]} (43... Nc5 $14 44. Qe5 Qxe5 45. fxe5 Rd8) 44. f5 $2 (44. Rd7 $1 $18 {[%cal Rd7f7] White threatens Rxf7+! and mate.} Qe8 45. Rxf7+ $3 {[%mdl 512]} (45. Qd3 Kg8 $16) 45... Qxf7 46. Nd4) 44... Qh2+ 45. Ka3 (45. Bc2 $1 $14 gxf5 46. Qxf5 (46. Rxf5 Rxf5 47. Qxf5 Qxh4 $11) 46... Rxd5 47. Qxd5) 45... gxf5 46. Qxf5 Qxh4 $2 {[%mdl 8192] [#]} (46... Rc8 $11 47. Bc2 (47. Qxh7 $2 Ra8+ 48. Na7 Rxa7+ 49. Ba4 Rxa4+ 50. Kxa4 Qa2+ 51. Kb5 Qxd5+ $19) 47... Qe2) 47. Nd6 $2 (47. Nd4 $1 $18 {[%cal Rd4e6]} Qe1 48. Nxe6+ Qxe6 49. Rxc5) 47... Qh5 48. Qf6 {Threatening mate with Qh8+.} Qg6 {White must now prevent ...Qxf6.The position is equal.} 49. Qh8+ Qg8 50. Qxg8+ Kxg8 51. Ne4 Rxd5 52. Bxd5 Kg7 53. c4 Kg6 54. Kb4 Nxg5 55. Nxg5 Kxg5 56. Bxf7 {Precision: White = 57%, Black = 47%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.13"]
[Round "8"]
[White "Akobian, Varuzhan"]
[Black "Ganguly, Surya Shekhar"]
[Result "1/2-1/2"]
[ECO "D59"]
[WhiteElo "2640"]
[BlackElo "2657"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 28,61,0,0,0,0,3,3,0,0,7,0,8,12,21,21,21,21,21,21,21,21,21,21,22,13,16,13,13,13,13,13,13,0,13,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 h6 6. Bh4 O-O 7. Nf3 b6 8. cxd5 Nxd5 9. Bxe7 Qxe7 10. Rc1 Bb7 11. Be2 Rc8 12. O-O Nxc3 13. Rxc3 Nd7 {D59: Queen's Gambit Declined: Tartakower Defence: Main line (8 cxd5 Nxd5)} 14. Qa4 c5 15. Rfc1 {LiveBook: 4 Games. The position is equal.} cxd4 16. Rxc8+ Rxc8 17. Rxc8+ Bxc8 $146 18. Nxd4 Nc5 19. Qa3 a5 20. Nb3 e5 21. Nxc5 Qxc5 22. Qxc5 bxc5 $11 {[%mdl 4096] Endgame KB-KB} 23. Bc4 Kf8 24. Kf1 Ke7 25. Ke2 f6 26. e4 Kd6 27. f3 Bd7 28. Kd3 Bc8 29. Ke3 Bd7 30. Kd3 Bc8 31. Ke3 {Precision: White = 58%, Black = 86%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.13"]
[Round "8"]
[White "Edouard, Romain"]
[Black "Xiong, Jeffery"]
[Result "1/2-1/2"]
[ECO "A20"]
[WhiteElo "2612"]
[BlackElo "2640"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,60,11,0,23,0,21,8,34,32,38,27,39,16,31,20,35,21,38,31,27,21,18,20,10,10,18,11,18,9,9,9,9,9,9,9,10,12,27]} 1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nc3 Nb6 6. Nf3 Nc6 7. O-O Be7 8. a3 O-O 9. b4 {[%cal Bb2b4,Bb4b5][%mdl 32]} Be6 10. Rb1 f6 11. b5 {A29: English Opening: Four Knights Variation with 4 g3} (11. d3 Nd4 12. Bb2 Nxf3+ 13. Bxf3 c6 14. Ne4 Bd5 15. Bc3 Rf7 16. Bh5 Rf8 17. Bf3 Rf7 18. Bh5 Rf8 19. Bf3 {½-½ (19) Svidler,P (2765)-Matlakov,M (2735) St Petersburg 2017}) 11... Nd4 12. e3 Nxf3+ 13. Bxf3 {LiveBook: 5 Games} Nd5 {[#]} 14. Ne2 $146 ({Predecessor:} 14. Bb2 a6 15. a4 axb5 16. axb5 Nxc3 17. Bxc3 Bd5 18. Bxd5+ Qxd5 {1-0 (64) Gordon,S (2528)-Alsina Leal,D (2507) England 2017}) 14... Qd7 15. d4 Rad8 16. Qc2 Kh8 17. Bg2 Bh3 18. Bxh3 Qxh3 19. e4 Nb6 20. Be3 Qe6 21. d5 Qd7 22. a4 f5 {The position is equal.} 23. f3 fxe4 24. fxe4 Qg4 25. Kg2 Qg6 {Strongly threatening ...Nxd5!} 26. Bxb6 axb6 27. Rxf8+ Rxf8 28. Rf1 Rxf1 29. Kxf1 Bc5 {And now ...Qf6+ would win.} 30. Kg2 Qg5 {Precision: White = 67%, Black = 51%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.14"]
[Round "9"]
[White "Bruzon Batista, Lazaro"]
[Black "Akobian, Varuzhan"]
[Result "1/2-1/2"]
[ECO "C02"]
[WhiteElo "2673"]
[BlackElo "2640"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,60,0,13,0,0,0,0,0,0,0,0,0,28,34,26,29,49,49,42,45,58,24,23,-7,0,-25,-22,-22,-22,-17,-24,-31,-12,-31,0]} 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 {[%cal Bb8c6,Bc6a5,Ba5b3][%mdl 32]} 5. Nf3 Qb6 6. a3 c4 7. Nbd2 Na5 8. Be2 Bd7 9. Rb1 Ne7 10. O-O Qc7 11. Re1 {C02: French: Advance Variation} (11. Qe1 Nc8 12. Bd1 Nb6 13. h4 Be7 14. h5 h6 15. g3 Ba4 16. Bxa4+ Nxa4 17. Qd1 Qc6 18. Nh2 O-O-O {0-1 (46) Zhigalko,S (2641)-Akobian,V (2647) Riadh 2017}) 11... Nc8 12. Nf1 Nb3 13. Bf4 Nb6 14. N3d2 Na5 {LiveBook: 7 Games} 15. h4 $146 ({Predecessor:} 15. Ng3 Ba4 16. Qc1 O-O-O 17. Nh5 Kb8 18. Nf3 Bb3 19. Nd2 Ba4 20. Nf3 Bb3 21. Nd2 Ba4 22. Nf3 Bb3 23. Nd2 Ba4 {½-½ (23) Domogaev,S (2435)-Gavritenkov,S (2429) Rilsk 2017}) 15... Be7 16. h5 h6 (16... Ba4 $5 17. Qc1 $8 h6 $11) 17. Bh2 Ba4 18. Qc1 O-O-O 19. Bg4 Bg5 {[#] Hoping for ...Nb3.} 20. f4 Bh4 21. Re2 Nb3 22. Nxb3 cxb3 23. Nd2 Qd7 24. Nf3 Be7 25. Bh3 Bb5 26. Re3 Nc4 27. Re1 g6 28. Qd1 Ba4 29. Kh1 Rdg8 30. Qe2 Bb5 {Precision: White = 51%, Black = 56%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.14"]
[Round "9"]
[White "Ipatov, Alexander"]
[Black "Edouard, Romain"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2665"]
[BlackElo "2612"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,103,0,9,8,8,12,30,30,41,36,47,36,70,64,77,75,82,75,78,79,97,87,68,70,73,70,79,73,80,58,84,78,84,83,81,53,47,46,50,31,74,75,73,72,77,80,76,51,53,44,46,43,52,45,49,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. O-O O-O 6. c3 c6 {LiveBook: 165 Games} 7. a4 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} (7. Nbd2 Nbd7 8. Re1 c5 9. a4 cxd4 10. cxd4 a5 11. Nb1 Nb8 12. Nc3 Nc6 13. Ne5 Bf5 14. Bg5 Nb4 15. Rc1 Ne4 16. Be3 Nxc3 17. bxc3 {1-0 (28) Kramnik,V (2800)-Dubov,D (2701) Moscow 2018}) 7... Ne4 8. Nbd2 Nxd2 (8... c5 {is more complex.} 9. Nxe4 dxe4 10. Ng5 cxd4 11. cxd4 Qxd4 12. Qxd4 Bxd4 13. Rd1 Nc6) 9. Nxd2 {White has an edge.} e5 $146 ({Predecessor:} 9... Nd7 10. e4 e5 11. exd5 cxd5 12. a5 exd4 13. cxd4 Nb8 14. Nb3 Nc6 {½-½ (61) Moussard,J (2576)-Sundararajan,K (2419) London 2017}) 10. dxe5 Bxe5 11. e4 dxe4 12. Nxe4 Qxd1 13. Rxd1 Bg4 14. f3 Bf5 15. Bh6 Bg7 16. Bxg7 Kxg7 17. Nd6 Na6 18. Bf1 (18. b4 {keeps more tension.} Bc8 19. f4 Rd8 20. Rd4 Rb8 21. Rad1) 18... Rab8 19. Nxf5+ gxf5 20. Rd4 Rfe8 21. Rad1 Nc5 {[#]} 22. a5 $1 b6 23. Rd6 bxa5 24. Rxc6 Ne6 25. Rd2 Re7 26. Bc4 a4 27. Ra6 Ng5 28. Kf2 Reb7 29. h4 Rxb2 30. Rxb2 Rxb2+ $14 {[%mdl 4096] Endgame KRB-KRN} 31. Ke3 Ne6 $1 32. Bxe6 fxe6 33. Rxe6 {KR-KR} Rc2 $1 {The position is equal.} 34. Kd3 Rf2 35. Ke3 Rc2 36. Ra6 Rxc3+ 37. Kf4 a3 38. h5 h6 39. Rxa7+ Kf6 40. Ra6+ Kg7 41. Ra5 Rb3 42. g4 fxg4 43. Kxg4 Rb2 44. Rxa3 Rg2+ $1 45. Kh4 Rh2+ $1 46. Kg4 {aiming for Ra7+.} Rg2+ 47. Kh3 Rg5 48. Kh4 $1 {Threatens to win with f4.} Rf5 49. Ra7+ Kg8 50. Ra3 Kg7 51. Rb3 Kg8 52. Ra3 {Precision: White = 71%, Black = 78%.} 1/2-1/2

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.14"]
[Round "9"]
[White "Ganguly, Surya Shekhar"]
[Black "Shankland, Samuel"]
[Result "0-1"]
[ECO "B34"]
[WhiteElo "2657"]
[BlackElo "2668"]
[Annotator "TA"]
[PlyCount "124"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,124,0,18,-8,23,24,20,17,32,0,0,0,0,0,0,0,0,10,29,60,53,50,68,50,44,15,18,25,32,0,0,0,0,0,0,0,0,0,0,0,0,0,18,0,0,0,0,0,0,0,13,7,17,19,14,14,16,0,0,0,0,0,0,0,0,0,8,2,10,26,11,0,0,0,0,0,0,0,0,0,0,-106,-104,-99,-104,-108,-117,-122,-117,-122,-122,-108,-108,-117,-113,-444,-417,-867,-809,-29983,-29984,-29984,-29984]} 1. e4 c5 2. Nc3 Nc6 3. Nf3 g6 4. d4 cxd4 5. Nxd4 Bg7 6. Nb3 Nf6 7. Be2 O-O 8. O-O d6 9. Re1 b6 10. Bf1 Bb7 11. Bg5 Rc8 12. Nd5 e6 {LiveBook: 5 Games. B70: Sicilian Dragon: 6 g3 and 6 Be2 (without a later Be3)} 13. Nc3 (13. Nxf6+ Bxf6 14. Bxf6 Qxf6 15. c3 Rfd8 16. Qe2 Ne5 17. Rad1 Rc7 18. Nd4 Rcd7 19. Qd2 g5 20. Bb5 {1-0 (64) Fluvia Poyatos,J (2479)-Alsina Leal,D (2547) Sabadell 2010}) 13... a6 14. Qd2 b5 $146 {White has an edge.} ({Predecessor:} 14... Qc7 15. Rad1 Rfd8 16. Qf4 Nh5 17. Qh4 f6 {1-0 (32) Nunes,L (1800)-De Queiroz,G (1912) Brasilia 2012}) 15. Rad1 Ne5 16. f3 Nc4 17. Bxc4 $1 bxc4 18. Nc1 Qb6+ 19. Be3 Qxb2 20. N1e2 {Rb1 is the strong threat.} Qa3 21. Qxd6 Qxd6 22. Rxd6 Rc6 23. Rxc6 Bxc6 24. Rb1 Nd7 25. Rb4 Rc8 26. Rxc4 Ne5 $1 {[%cal Re5c4]} 27. Rc5 Nd7 28. Ra5 Bb7 29. Ra3 $1 Rc4 30. Kf2 f5 31. exf5 gxf5 32. Ke1 Kf7 33. Kd2 Ne5 {And now ...Rc7 would win.} 34. Rb3 Rc7 {Strongly threatening ...Nc4+.} 35. Ke1 Nc4 36. Bf2 e5 37. Na4 Bf8 38. Nc5 Bc8 39. Nd3 Bd6 40. Bg3 Be6 41. f4 {[%cal Rf4e5]} e4 42. Ne5+ Nxe5 43. fxe5 Be7 44. Rb2 Ba3 45. Rb6 {next Nd4 is good for White.} Bc5 46. Rxa6 Bb4+ 47. c3 Bxc3+ 48. Nxc3 Rxc3 $11 {[%mdl 4096] Endgame KRB-KRB} 49. Ra7+ Kg6 50. Ra6 Kf7 51. a4 e3 {Hoping for ...Rc1+.} 52. Rd6 (52. Ra7+ $11 {remains equal.} Kg6 53. Bf4) 52... Rc4 $17 {White must now prevent ...f4.} 53. Ke2 f4 54. Be1 Rxa4 55. Rb6 Ra2+ $1 56. Kf3 {[#]} Ra1 $1 {[%cal Ra1e1]} 57. Bh4 Rf1+ 58. Ke4 e2 59. Rb7+ $2 {[%mdl 8192] [#]} (59. Rb2 $17 e1=Q+ 60. Bxe1 Rxe1+ 61. Kxf4) 59... Kg6 $1 $19 60. Rb6 (60. Kd4 $142) 60... Kh5 61. Rxe6 Kxh4 62. Kf5 h5 {Precision: White = 58%, Black = 80%.} 0-1

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.14"]
[Round "9"]
[White "Xiong, Jeffery"]
[Black "Onischuk, Alexander"]
[Result "1-0"]
[ECO "A62"]
[WhiteElo "2640"]
[BlackElo "2681"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,75,7,20,-34,10,-22,43,36,41,50,51,64,68,59,120,124,123,129,117,125,127,83,102,105,136,136,130,145,138,138,144,137,282,250,483,467,477,480,486,530,494,481,670,594,584,556,759,754,870,756,824,876,6403,1748]} 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 g6 6. Nc3 d6 7. Bg2 Bg7 8. Nf3 O-O 9. O-O a6 10. a4 Re8 11. Bf4 Qc7 12. h3 Nbd7 {LiveBook: 39 Games} 13. Qd2 {A63: Modern Benoni: Fianchetto Variation: 9...Nbd7} ({White should play} 13. Re1 $11) (13. Re1 Nh5 14. Bd2 f5 15. Rc1 Qb6 16. Qc2 Ne5 17. Nxe5 Bxe5 18. e3 Bd7 19. b3 Rac8 20. Ne2 Qd8 {1-0 (80) Goryachkina,A (2486)-Kosteniuk,A (2557) Riadh 2017}) 13... Rb8 14. Rab1 $146 ({Predecessor:} 14. Bh6 Bh8 15. Ra2 b6 16. Ng5 Bb7 17. Nce4 Nxe4 18. Nxe4 Ne5 19. Bg5 f6 20. Nxf6+ Bxf6 21. Bxf6 {1-0 (36) Yanjinlkham,B (2006)-Urjindorj,L Ulaanbaatar 2016}) 14... b5 (14... Nb6 $11) 15. axb5 $14 {White is slightly better.} axb5 16. b4 $1 Ne4 17. Nxe4 Rxe4 18. Ng5 $36 {[%mdl 2048] White has some pressure.} Re8 (18... Rc4 $14) 19. Ne4 $16 Rxe4 20. Bxe4 c4 21. Bh6 Bh8 22. Be3 Nb6 23. Bd4 Bxd4 24. Qxd4 Bxh3 25. Rfe1 Qe7 26. Ra1 {[%cal Bb1a1,Ba1a6,Ba6d6,Bd6c6,Bc6c7,Bc7a7][%mdl 32]} h5 27. Ra6 h4 {[#]} (27... Qe5 $16 28. Qxe5 dxe5) 28. Bf3 $1 $18 Qb7 $2 (28... hxg3 29. Rxb6 gxf2+ 30. Kxf2 (30. Qxf2 Qg5+ 31. Kh2 Rxb6 $18) 30... Rxb6) 29. Rea1 {White is clearly winning.} hxg3 30. fxg3 Na4 31. Rxd6 Qe7 32. Rc6 Bd7 33. Rc7 Qd6 34. Qf4 Rb6 35. Kg2 Kf8 36. e4 Ke7 37. Ra7 {[#] Intending e5 and mate.} f6 38. Rh1 {Precision: White = 75%, Black = 22%.} (38. Qh4 $142 Kd8 39. Bg4) 1-0

[Event "2018 Spring Chess Classic A"]
[Site "Saint Louis"]
[Date "2018.03.14"]
[Round "9"]
[White "Zherebukh, Yaroslav"]
[Black "Swiercz, Dariusz"]
[Result "0-1"]
[ECO "C67"]
[WhiteElo "2633"]
[BlackElo "2654"]
[Annotator "TA"]
[PlyCount "112"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,112,4,13,25,26,27,0,0,0,0,-8,-8,-9,-23,-8,0,0,0,0,0,0,0,-21,0,-23,0,-32,-13,-50,-40,-64,-56,-139,-125,-137,-106,-162,-204,-209,-209,-185,-197,-217,-220,-286,-281,-325,-325,-351,-336,-352,-352,-297,-222,-388,-189,-252,-222,-325,-183,-183,-183,-183,-183,-229,-231,-247,-247,-283,-260,-208,0,-258,-262,-284,-240,-406,-405,-395,-357,-321,-289,-289,-287,-394,-373,-411,-329,-414,-405,-364,-421,-607,-600]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5 8. Qxd8+ Kxd8 9. b3 Ke8 {C67: Ruy Lopez: Berlin Defence: 4 0-0 Nxe4} (9... Ne7 10. c4 Ng6 11. h3 Bd7 12. Nc3 Ke8 13. Ne2 Rd8 14. Rd1 Be7 15. Be3 a6 16. Kh2 h5 17. g3 {1-0 (52) So,W (2762)-Zhou,J (2587) Las Vegas 2014}) 10. Bb2 Be7 11. Nc3 {LiveBook: 8 Games} Nh4 {The position is equal.} 12. Nd4 Nf5 $146 ({Predecessor:} 12... Bg4 13. f3 Bd7 14. Ne4 c5 15. Ne2 Nf5 16. c4 Bc6 17. Kf2 Rd8 18. Rad1 b6 19. Rfe1 Bxe4 20. fxe4 Nh4 21. Ng3 Rg8 22. Nf5 Ng6 23. Rxd8+ Kxd8 24. Rd1+ Kc8 {½-½ (24) Ciklabakkal,M (2004)-Vodicka,M (2247) ICCF email 2013}) 13. Nce2 Nxd4 14. Nxd4 c5 15. Nb5 Kd7 16. f4 Kc6 17. c4 a6 18. Nc3 g6 19. Nd5 Re8 20. Rad1 Be6 21. Rd2 h5 22. Rfd1 Bf8 23. Nf6 Reb8 24. Bc3 b5 25. Nd5 $1 a5 {[%cal Ba6a5,Ba5a4,Ba4a3][%mdl 32]} 26. Nf6 (26. a4 $15) 26... bxc4 $17 27. bxc4 a4 28. h3 (28. Nd5 $17) 28... a3 $19 29. Nd7 Rd8 30. Nxf8 Rxf8 31. Rc2 Ra4 (31... Bxc4 32. Be1 $15) 32. Bd2 Rd8 (32... Rxc4 33. Rdc1 $17) 33. Kf2 Rxc4 34. Rxc4 Bxc4 {[%mdl 4096] Endgame KRB-KRB} 35. Ke1 Rd3 ({Less strong is} 35... Bxa2 36. Ra1 $19) 36. Rc1 Bd5 37. Bb4 $2 {[#]} (37. Ke2 {was necessary.} Rg3 38. Be3 Rxg2+ 39. Bf2) 37... c4 (37... Kb5 $142 38. Ke2 Bc4) 38. Kf2 (38. Rc3 $142) 38... h4 39. Kf1 (39. Rc3 {was called for.}) 39... Rd4 (39... Kb5 $142 40. Be1 c3) 40. Bxa3 Rd2 41. Be7 Rxa2 42. Bxh4 Bxg2+ 43. Kg1 Kd5 ({Much less strong is} 43... Bxh3 44. Rxc4+ Kd7 45. Rd4+ Kc8 46. Bf2 $17) 44. Rd1+ Ke4 45. Rc1 Kd5 ({Not} 45... Bxh3 46. Rxc4+ Kd3 47. Rxc7 $15) 46. Rd1+ Ke6 47. Be1 Bxh3 48. Rd4 $2 {[#]} (48. Rd2 Ra1 49. Kf2) 48... Rg2+ 49. Kh1 Re2 50. Ba5 Bg2+ 51. Kg1 Bd5 52. Kf1 Rh2 53. Ke1 c6 54. Rd2 Rh4 55. Rf2 Kf5 56. Bd2 (56. Kd1 $142) 56... Rh3 {Precision: White = 40%, Black = 71%.} 0-1

