[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.18"]
[Round "1"]
[White "Nakamura, Hikaru"]
[Black "Robson, Ray"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "2787"]
[BlackElo "2660"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,65,-13,-29,-11,-71,-59,-90,-45,-38,-42,-47,-35,-67,-40,-53,-25,-30,-20,-35,-29,-39,-25,-24,-28,-30,-8,-12,-4,-8,-10,-27,-16,-14,-8,-27,-24,-26,-20,-14,-28,-18,0,0,0,0,0,0,0,-37]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. h4 a5 {C45: Scotch Game} (8... Bb7 9. c4 Nb6 10. Rh3 Qe6 11. f4 O-O-O 12. a4 d5 13. a5 Nxc4 14. b3 Bb4+ 15. Kf2 Nxa5 16. Bd2 {½-½ (73) Nakamura,H (2781)-Carlsen,M (2837) London 2017}) 9. c4 Nb6 10. Nd2 {LiveBook: 3 Games} Qe6 $146 {Black has an edge.} ({Find the theoretical novelty and annotate with similar games:} 10... d6 11. exd6 Qxe2+ 12. Bxe2 cxd6 13. b3 Bb7 14. Bb2 c5 15. O-O a4 16. Rfe1 {1-0 (33) Morozevich,A (2683)-Jakovenko,D (2714) Moscow 2016}) 11. Nf3 (11. h5 $11) 11... Bb4+ $17 12. Bd2 Bxd2+ (12... O-O {NOTEXT} 13. h5 Re8 14. O-O-O d5 15. Nd4 Qe7) 13. Nxd2 O-O 14. O-O-O Re8 15. f4 d6 16. Rh3 Qh6 17. Re3 $1 Qxf4 {[#] Strongly threatening ...Bg4.} 18. Re4 Qg3 $1 {[%cal Rd6e5]} 19. exd6 {[%cal Re4e8]} Be6 20. dxc7 Qxc7 21. Nf3 Nd7 22. Ng5 {[%cal Rg5e6]} Nf8 23. Qf2 Rad8 24. Bd3 h6 25. Nxe6 Rxe6 26. Qf3 Red6 27. Ree1 Rd4 28. g3 Ne6 29. Kb1 h5 {The position is equal.} 30. Bc2 Rxd1+ 31. Bxd1 g6 32. Bc2 {[#] Threatens to win with Bxg6!} Nd4 33. Qc3 {Precision: White = 45%, Black = 61%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.18"]
[Round "1"]
[White "Onischuk, Alexander"]
[Black "Akobian, Varuzhan"]
[Result "0-1"]
[ECO "A84"]
[WhiteElo "2672"]
[BlackElo "2647"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,50,23,49,49,59,42,65,74,89,52,46,24,26,0,4,29,36,0,23,25,23,13,19,-100,-92,-42,-42,-45,-34,-67,-35,-138,-43,-41,-51,-331,-324]} 1. d4 e6 2. c4 f5 3. Nc3 Nf6 4. g3 d5 5. Bg2 c6 6. Nh3 Bd6 7. O-O O-O 8. Qc2 {A90: Dutch Defence: Miscellaneous and Modern Stonewall (with ...Bd6)} dxc4 {LiveBook: 3 Games} 9. e4 {[%cal Be2e4,Be4f5][%mdl 32]} e5 10. exf5 {White is slightly better.} exd4 (10... Ng4 11. Ne4 b5 12. b3 exd4 13. bxc4 Bxf5 14. cxb5 Kh8 15. bxc6 Ne5 {1-0 (24) Riazantsev,A (2679)-Reinderman,D (2601) Aix les Bains 2011}) 11. Ne2 c5 $146 ({Predecessor:} 11... b5 12. Nxd4 Qb6 13. Ne6 Bxe6 14. fxe6 Na6 15. Ng5 Rae8 {½-½ (50) De Jong,J (2424)-Ulybin,M (2538) Alghero 2011}) 12. Qxc4+ Kh8 13. Ng5 {Black must now prevent b4!} (13. b4 $5) 13... Nc6 14. Bf4 Bxf5 15. Nf7+ {[#]} Rxf7 $1 {[%mdl 512]} 16. Qxf7 Rb8 17. Bxc6 bxc6 18. Rfe1 d3 ({Much weaker is} 18... Rxb2 $6 {[#]} 19. Nxd4 $1 {[%mdl 512]} cxd4 20. Bxd6 $16) 19. Bxd6 (19. Rad1 $1 $11) 19... Qxd6 $17 20. Nc3 d2 $36 {[%mdl 2048] Black fights for an advantage.} 21. Re7 {[%csl Ge7][%cal Rf7g7]} Rg8 22. Rxa7 Bg4 23. Qe7 ({Better is} 23. Re7 $1 $15) 23... Qxe7 (23... Qd3 $17 {Threatens to win with ...Qc2.} 24. Qe5 h6) 24. Rxe7 $15 {Hoping for f3!} Nd5 $1 {[%cal Rd5e7]} 25. Re2 $2 {[%mdl 8192] [#]} (25. f3 $1 $15 Bxf3 26. Rd7) 25... d1=Q+ $1 {[%mdl 512] Precision: White = 33%, Black = 43%.} 0-1

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.18"]
[Round "1"]
[White "Xiong, Jeffery"]
[Black "Izoria, Zviad"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2665"]
[BlackElo "2599"]
[Annotator "TA"]
[PlyCount "124"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,124,14,14,0,0,0,47,0,0,0,8,0,0,0,0,0,7,3,41,2,45,13,12,0,18,0,1,0,10,5,23,35,30,37,31,34,48,38,34,55,57,54,72,74,73,74,78,70,98,106,207,228,239,239,230,214,239,225,234,228,243,221,196,200,224,41,41,41,41,41,41,41,42,22,22,22,16,22,22,0,15,8,28,8,27,8,8,8,36,36,36,36,36,36,36,8,29,29,29,8,8,8,8,0,0,0,8,8,8,8,8,8,8]} 1. d4 Nf6 2. Nf3 g6 3. Nbd2 c5 4. dxc5 Qa5 5. a3 Qxc5 6. b4 {A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems} Qc7 7. Bb2 Bg7 {LiveBook: 47 Games} 8. g3 (8. e3 O-O 9. c4 b6 10. Be2 Bb7 11. O-O d6 12. Rc1 Nbd7 13. Qb3 Rac8 14. Rfd1 Qb8 15. Bf1 Rfd8 16. Nd4 Qa8 17. Ba1 a6 18. Rc2 Rc7 19. Rdc1 Rdc8 20. Ne2 d5 21. Nf4 e6 22. cxd5 Rxc2 23. Rxc2 Nxd5 24. Bxg7 Kxg7 {½-½ (52) Bukavshin,I (2657)-Gelfand,B (2731) Moscow 2015}) 8... d6 9. Bg2 b6 10. O-O (10. Ne4 $5 Nxe4 11. Bxg7 $14) 10... Bb7 11. c4 O-O 12. Qb3 Nbd7 13. Rfd1 $146 ({Find the theoretical novelty and annotate with similar games:} 13. Rac1 Rac8 {0-1 (44) Rotstein,A (2506)-Naumann,A (2545) Austria 2016}) 13... Rac8 14. Rac1 a6 15. Nf1 Be4 16. Bh3 h6 17. Ne3 (17. Bxf6 $5 exf6 18. N1d2 $11) 17... e6 18. Bg2 Qb8 19. Ne1 Bxg2 20. N1xg2 {[%cal Be1g2,Bg2h4,Bh4f3][%mdl 32]} Rc6 21. Nh4 b5 22. Nf3 bxc4 23. Nxc4 Nc5 {[%cal Bd7c5,Bc5a4,Ba4c3][%mdl 32]} 24. Qe3 Na4 25. Bxf6 Bxf6 26. Qxh6 Rfc8 ({Much weaker is} 26... Nc3 27. Rxc3 d5 28. Ng5 $16) 27. Na5 $1 {[%cal Ra5c6]} Rxc1 28. Rxc1 Rxc1+ 29. Qxc1 Nc3 30. Kg2 Qa8 31. Qf4 Kg7 (31... Ne4 $16) 32. Qxd6 $18 Nxe2 {With the idea ...Nd4.} 33. Qc6 $1 {[%cal Rc6a8]} Qxc6 34. Nxc6 {[%mdl 4096] Endgame KBN-KNN} Bb2 {[#]} 35. a4 $1 Nc3 36. a5 Nd5 37. Ne1 Bc3 38. Nd3 e5 {[#]} 39. Kf3 $2 ({Not} 39. Ncxe5 Nxb4 40. Nxb4 Bxb4 $16) (39. b5 $1 $18) 39... f5 $1 $14 40. Ndxe5 Nxb4 41. Ke3 Nxc6 42. Nxc6 {KB-KN} g5 43. f3 Kf6 44. Kd3 Be1 45. Ke2 Bc3 46. Kd3 Be1 47. Kc4 Ke6 48. Nd4+ Kd7 49. Nxf5 {And now Kd5 would win.} Bxa5 50. Kd5 {aiming for Nd6.} Bd8 51. Nd6 {Black must now prevent Nb7.} a5 52. Nb7 Bb6 53. Nc5+ Ke7 54. Kc4 Kf7 55. Kb5 Bc7 56. Nb7 {Strongly threatening Kc6.} Kg6 {The position is equal.} 57. Kc6 g4 58. f4 Bxf4 59. gxf4 Kf5 60. Nxa5 Kxf4 61. Nc4 g3 62. hxg3+ Kxg3 {Precision: White = 54%, Black = 58%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.18"]
[Round "1"]
[White "Zherebukh, Yaroslav"]
[Black "So, Wesley"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2640"]
[BlackElo "2786"]
[Annotator "TA"]
[PlyCount "106"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,106,25,18,35,16,29,21,37,29,37,33,25,31,37,23,45,18,34,12,36,17,22,20,16,15,24,-74,-60,-74,-72,-77,-75,-146,-82,-57,-27,-170,-185,-227,-245,-222,-243,-228,-219,-247,-233,-230,-230,-235,-251,-272,-272,-290,-281,-271,-242,-250,-256,-270,-265,-264,-254,-224,-203,-199,-192,-194,-185,-241,-233,-234,-245,-243,-225,-265,-248,-240,-262,-265,-260,-260,-260,-260,-260,-260,-260,-253,-224,-258,-133,-255,-253]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. Ba4 (4. d4 a6 5. Bxd7+ Bxd7 6. dxc5 dxc5 7. Nc3 e6 8. Bg5 Be7 9. Bxe7 Qxe7 10. O-O Rd8 11. Re1 Bc6 12. Qc1 Nf6 13. a4 O-O {0-1 (60) Duda,J (2717)-Nepomniachtchi,I (2729) Riadh 2017}) 4... Ngf6 5. O-O a6 6. c4 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7} g6 7. Nc3 Bg7 8. d3 O-O 9. h3 {LiveBook: 6 Games} b6 10. Rb1 Bb7 11. Bg5 $146 ({Predecessor:} 11. Be3 e6 {½-½ (40) Boruchovsky,A (2542)-Yilmaz,M (2619) Batumi 2018}) 11... h6 12. Be3 Qc7 13. Qd2 Kh7 14. b4 Rac8 15. Rfc1 e6 16. Ne2 Rfd8 17. Ng3 Ba8 18. a3 Nb8 {[%cal Bd7b8,Bb8c6,Bc6d4][%mdl 32]} 19. Nh2 Nc6 20. f4 Nd4 21. Rf1 (21. Qf2 $11) 21... b5 $1 $17 {[%cal Rb5a4]} 22. cxb5 $1 axb5 23. Bd1 Qa7 24. Ra1 {[#]} (24. Kh1 $142) 24... cxb4 (24... Nf5 $142 $1 {[%cal Rf5e3][%mdl 512]} 25. exf5 Nd5 26. fxg6+ fxg6) 25. Qxb4 Nd7 {White must now prevent ...Ne2+!} 26. Kh1 (26. Ra2 $11) 26... Nc2 $1 $36 {[%mdl 2048] Keeping White busy.} 27. Bxa7 Nxb4 28. Rb1 Nxd3 29. Rxb5 Bc6 30. Rb1 Ra8 31. Be3 Rxa3 32. Bf3 h5 33. Ne2 N3c5 34. Bxc5 Nxc5 ({Less strong is} 34... dxc5 35. e5 $17) 35. e5 Ba4 36. exd6 Rxd6 37. Rbc1 Nb3 38. Rc7 Nd2 39. Re1 Rd7 40. Rxd7 Bxd7 41. Rd1 Ra2 {aiming for ...Bb5.} 42. Nc1 (42. Nf1 $142 Nxf3 43. Rxd7) 42... Ra1 43. Nd3 Rxd1+ 44. Bxd1 Ne4 45. Nf3 Bb5 46. Nfe1 h4 47. Kh2 Bc3 48. Bc2 Bd2 49. Nf3 {[#]} Bxd3 $1 50. Bxd3 Bxf4+ 51. Kg1 Be3+ 52. Kf1 {[#]} Ng3+ $1 53. Ke1 Kg7 {Precision: White = 48%, Black = 78%.} 0-1

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.18"]
[Round "1"]
[White "Lenderman, Aleksandr"]
[Black "Shankland, Samuel"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2599"]
[BlackElo "2671"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,82,-18,-14,29,6,26,6,14,-5,4,-6,-6,-16,0,0,0,0,0,-10,-5,-10,0,0,0,-4,-4,-2,-2,-22,0,0,0,0,0,-19,-19,-19,-19,-20,-19,-33,-27,-32,-27,-39,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 d5 2. g3 g6 3. c4 dxc4 4. Na3 Bg7 5. Nxc4 Nc6 6. d3 {LiveBook: 24 Games. A09: Réti Opening: 1 Nf3 d5 2 c4} Nh6 $146 ({Predecessor:} 6... e5 7. Bd2 Nge7 8. b4 Be6 9. Rc1 Nd4 10. Bg2 Bd5 11. e4 Nxf3+ 12. Qxf3 {0-1 (47) Oparin,G (2602)-Mamedyarov,S (2799) Moscow 2017}) 7. Bg2 O-O 8. O-O {White has an edge.} Nf5 9. Bd2 Nd6 10. Nxd6 cxd6 11. Bc3 Qb6 12. Qa4 d5 13. Bxg7 Kxg7 14. Qa3 Bg4 15. e3 Bxf3 16. Bxf3 e6 17. d4 Rfc8 18. Rfc1 Qb4 19. Qd3 Rc7 20. Rc2 Rac8 {[#] And now ...Nxd4 would win.} 21. Rac1 Qa4 22. Qa3 (22. Qb3 {keeps more tension.} Qxb3 23. axb3 a5 24. Rc5 Kf6 25. e4) 22... Qxa3 23. bxa3 f5 24. Be2 Kf6 25. Kf1 Ke7 26. Ke1 Kd6 27. Kd2 e5 (27... g5 {is more complex.} 28. Rc5 Rf8 29. Kd3 f4 30. e4 fxg3 31. fxg3 Rf2) 28. dxe5+ {The position is equal.} Nxe5 29. Rxc7 Rxc7 30. Rxc7 Kxc7 $11 {[%mdl 4096] Endgame KB-KN} 31. Kc3 Kd6 32. f4 Nc6 33. g4 fxg4 34. Bxg4 Kc5 35. Be6 h6 36. Kd3 g5 37. h3 Kd6 38. Bc8 b6 39. Bb7 Nd8 40. Bc8 Nc6 41. Bb7 Nd8 {Precision: White = 58%, Black = 59%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.18"]
[Round "1"]
[White "Liang, Awonder"]
[Black "Caruana, Fabiano"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2552"]
[BlackElo "2804"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,104,18,24,9,17,0,1,0,13,12,8,0,0,0,11,10,11,11,12,0,0,13,8,0,0,0,22,0,0,0,0,0,0,0,0,0,48,0,0,-8,0,0,11,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d3 Bg7 6. h3 Nf6 7. Nc3 O-O 8. Be3 b6 9. Qd2 e5 10. Bh6 Re8 11. Bxg7 {B31: Sicilian: 2...Nc6 3 Bb5 g6} Kxg7 {LiveBook: 6 Games} 12. Qe3 Qd6 13. Ne2 (13. a4 a5 14. b3 Nh5 15. Ne2 Nf4 16. O-O {½-½ (33) Bergerhoff,R (2472)-Nogga,U (2470) GER email 2015}) 13... a5 14. O-O $146 ({Predecessor:} 14. Nd2 Nh5 15. Nc4 Qc7 16. a4 Be6 17. b3 Nf4 {0-1 (43) Maier,A (2301)-Speckner,R (2340) Bayern 2003}) 14... Nh5 15. Nd2 Nf4 16. Nc4 Qc7 17. a4 Be6 18. b3 b5 19. Nd2 Qd6 20. Nxf4 exf4 21. Qe1 b4 22. Nf3 Qe7 23. Kh2 Qf6 24. g3 g5 25. Rg1 {aiming for Nxg5!} Kh8 26. gxf4 gxf4 27. Ra2 Qh6 {[%csl Ge6][%cal Rh6h3]} 28. Ng5 {White threatens Nxf7+! and mate.} Rad8 29. Nxe6 Rxe6 {The position is equal.} 30. Qe2 Rg6 {( -> ...Rxg1)} 31. Raa1 Qg7 (31... Rdg8 {feels hotter.} 32. Rxg6 Rxg6 33. Re1 Rg8 34. e5 Rg6) 32. Qf3 Qe5 33. Rxg6 hxg6 $11 {[%mdl 4096] Endgame KQR-KQR} 34. Rg1 Kg7 35. Rg4 g5 36. Rg2 Rh8 37. Qg4 Kg6 38. f3 Kf6 39. Rg1 Kg6 40. Rg2 Kf6 41. Rg1 Rh6 42. Qd7 Kg7 43. Qd8 Rg6 44. Rg2 Qd4 45. Qxd4+ ({Avoid the trap} 45. Qxa5 $2 {[#]} g4 $1 $19 {[%mdl 512]}) 45... cxd4 {KR-KR} 46. Rg4 f6 47. h4 Rh6 {[#]} 48. e5 $1 {[%mdl 512]} Rh5 ({Don't blunder} 48... fxe5 $2 49. Rxg5+ Kf7 50. Rxe5 $18) 49. exf6+ Kxf6 50. Kh3 Kf5 51. Rxg5+ Rxg5 52. hxg5 Kxg5 {Precision: White = 70%, Black = 77%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.19"]
[Round "2"]
[White "Caruana, Fabiano"]
[Black "Lenderman, Aleksandr"]
[Result "1-0"]
[ECO "C18"]
[WhiteElo "2804"]
[BlackElo "2599"]
[Annotator "TA"]
[PlyCount "45"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,45,0,5,-10,14,26,16,16,18,22,51,25,71,71,76,79,81,82,84,98,369,386,357,326,321,320,311,305,1115,1081,1719,1620]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qa5 7. Bd2 Qa4 8. Qg4 Kf8 {LiveBook: 209 Games} 9. h4 {C18: French: 3 Nc3 Bb4: Main line: 7 h4 and 7 Qg4} (9. Qd1 b6 10. dxc5 bxc5 11. c4 Ba6 12. cxd5 Bxf1 13. Kxf1 exd5 14. Nf3 Nd7 15. h4 h5 16. Rb1 Ne7 {½-½ (47) Najer,E (2699)-Harikrishna,P (2733) Antalya 2017}) 9... Nc6 10. h5 h6 11. Qd1 {The position is equal.} cxd4 $146 ({Find the theoretical novelty and annotate with similar games:} 11... b6 12. f4 Ba6 13. Bxa6 Qxa6 14. g4 Nge7 15. Ne2 Qc4 {0-1 (38) Moncher,S (2507)-Sinka,I (2548) ICCF email 2003}) 12. Nf3 dxc3 13. Bxc3 g5 14. hxg6 $1 {Strongly threatening Rh4.} Qe4+ 15. Be2 {And now gxf7 would win.} Qxg6 16. Qd2 $36 {[%mdl 2048] White is in control.} Nge7 17. Bd3 Qxg2 $2 {[%mdl 8192] [#]} (17... Qg7 $16) 18. Ke2 $1 $18 Qg4 19. Rh4 Qg7 ({But not} 19... Qg2 $2 20. Rg1 $18) 20. Rg1 Ng6 {[#]} 21. Rf4 $1 {[%mdl 512]} Nce7 $2 (21... Ke7) (21... Nxf4+ 22. Qxf4) 22. Bb4 a5 23. Rxg6 {Precision: White = 89%, Black = 20%.} 1-0

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.19"]
[Round "2"]
[White "Nakamura, Hikaru"]
[Black "Zherebukh, Yaroslav"]
[Result "1/2-1/2"]
[ECO "C43"]
[WhiteElo "2787"]
[BlackElo "2640"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,65,35,34,13,16,15,9,0,0,7,7,8,12,0,0,0,0,0,33,16,32,7,16,12,33,15,44,21,18,0,0,0,0,0,7,4,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Nd7 6. Nxd7 Bxd7 7. O-O Bd6 8. c4 {[%cal Bc2c4,Bc4c5][%mdl 32] C43: Petroff Defence: 3 d4} (8. Qh5 Qf6 9. Be3 O-O-O 10. Nc3 Nxc3 11. bxc3 Qe6 12. Rfe1 f6 13. Bd2 Qg8 14. Rab1 Kb8 15. h3 b6 16. Ba6 {1-0 (41) Ivanchuk,V (2728)-Giri,A (2772) Tbilisi 2017}) 8... O-O {LiveBook: 4 Games} 9. c5 Be7 10. Qc2 Bf6 $146 ({Predecessor:} 10... f5 11. Nd2 b6 12. Nb3 Ba4 13. f3 bxc5 14. dxc5 Bxc5+ 15. Kh1 Bb6 16. fxe4 fxe4 17. Rxf8+ Qxf8 {½-½ (45) Dunlop,G (2572)-Straka,Z (2577) ICCF email 2016}) 11. Be3 Re8 12. Nd2 {[%cal Rd2e4]} Bf5 13. Nf3 Bg6 14. Rfe1 Re6 15. Bf4 Qe7 16. Re3 Re8 17. Rae1 c6 18. h3 Qd8 19. b4 a6 20. a4 {[%cal Ba2a4,Ba4b5][%mdl 32]} Bg5 21. Nxg5 Nxg5 {The position is equal.} 22. Bxg6 (22. Qd2 {looks sharper.} Rxe3 23. Rxe3 Ne6 24. Be5 Bxd3 25. Qxd3 g6 26. f3) 22... hxg6 23. b5 Rxe3 24. Bxe3 axb5 25. axb5 Ne6 {[#] White must now prevent ...Nxd4!} 26. Rb1 f5 27. Qd2 g5 {Threatens to win with ...f4.} 28. f3 g4 29. bxc6 bxc6 30. fxg4 fxg4 31. hxg4 Qh4 32. Qd1 Qh7 33. Rb3 {Precision: White = 54%, Black = 74%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.19"]
[Round "2"]
[White "So, Wesley"]
[Black "Onischuk, Alexander"]
[Result "1-0"]
[ECO "C84"]
[WhiteElo "2786"]
[BlackElo "2672"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,89,39,40,52,50,43,35,48,45,45,33,56,57,63,62,60,50,48,64,77,70,77,50,90,77,82,87,127,124,105,128,116,116,128,109,114,125,111,141,133,131,114,118,110,85,172,172,172,172,170,157,283,279,298,283,319,307,282,247,245,239,587,589,628,560,4133,2327,2079,1295,1027,1008]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 {[%cal Bg8f6,Bf6d7,Bd7b6][%mdl 32]} 5. O-O Be7 6. d3 d6 7. c3 O-O 8. Re1 Bg4 9. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1g3][%mdl 32]} Nd7 10. h3 Bh5 11. Bc2 {LiveBook: 11 Games. C87: Closed Ruy Lopez: Steinitz-type lines after 6 Re1 d6} (11. Nf1 Nc5 12. Bc2 Ne6 13. g4 Bg6 14. Ng3 Ng5 15. Kg2 Nxf3 16. Qxf3 Bg5 17. Be3 h6 18. Rh1 d5 19. exd5 {½-½ (53) Ter Sahakyan,S (2601)-Bartel,M (2653) Gjakova 2016}) 11... Nb6 12. Nf1 d5 13. Ng3 {White is slightly better.} Bg6 14. Qe2 Re8 $146 ({Predecessor:} 14... d4 15. Nf5 Bf6 16. Bd2 Qd7 17. N3h4 Ne7 18. Qg4 Nxf5 19. Nxf5 {1-0 (32) Tomashevskaya,L (2221)-Akulova,T (1592) Samara 2015}) 15. Be3 Qd6 16. Bxb6 cxb6 17. h4 {And now exd5 would win.} h6 18. Bb3 d4 19. cxd4 Nxd4 20. Nxd4 Qxd4 21. Qg4 Qd6 {[#]} 22. d4 $1 {[%mdl 512] Threatens to win with dxe5.} Kh8 (22... Qxd4 23. Qxg6) 23. Rad1 Qf6 24. h5 Bh7 25. dxe5 Qxe5 26. Bxf7 Rf8 27. Qe6 $1 {[%cal Re6e5]} Bf6 28. Qxe5 Bxe5 29. Rd7 Rad8 30. Rxd8 Rxd8 31. b3 Rd7 32. Be6 Re7 (32... Rd2 $16) 33. Bd5 $1 $18 Bxg3 34. fxg3 {[%mdl 4096] Endgame KRB-KRB} Bg8 {aiming for ...Bxd5.} 35. Kf2 Be6 (35... Rd7 $16) 36. Bxe6 Rxe6 {KR-KR} 37. Ke3 Kg8 38. Rf1 g6 39. hxg6 Rxg6 40. Rf3 Kg7 $2 (40... Re6 {is tougher.} 41. a4 Kg7) 41. e5 {[%cal Be4e5,Be5e6,Be6e7][%mdl 32] White is clearly winning.} Rg4 42. Kd3 $1 {[%cal Rd3e3]} b5 43. e6 {Threatening mate with e7.} Rg6 {[#]} 44. e7 $1 {[%cal Re7e8]} ({Weaker is} 44. Re3 Kf8 $14) 44... Rd6+ {[#]} 45. Ke2 $1 {Precision: White = 100%, Black = 40%.} 1-0

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.19"]
[Round "2"]
[White "Shankland, Samuel"]
[Black "Xiong, Jeffery"]
[Result "1/2-1/2"]
[ECO "A10"]
[WhiteElo "2671"]
[BlackElo "2665"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,60,2,6,0,0,-3,0,0,7,0,5,10,23,13,20,21,35,9,10,0,9,0,0,0,0,0,0,0,14,0,6,6,6,6,6,2,4,9,16,13,6,10,15,0,0,0,9,0,0,0,14,0,2]} 1. c4 g6 2. Nc3 c5 3. d4 cxd4 4. Qxd4 Nf6 5. e4 (5. Bf4 Nc6 6. Qd2 d6 7. e4 Bg7 8. Bd3 Ne5 9. Nge2 Nh5 10. Be3 Ng4 11. Bg5 {0-1 (39) Nepomniachtchi,I (2742)-So,W (2810) Saint Louis 2017}) 5... Nc6 {LiveBook: 5 Games} 6. Qe3 {A34: Symmetrical English: 2 Nc3, lines with ...d5} (6. Qd1 {feels hotter.} Bg7 7. Bd3 d6 8. Nge2 O-O 9. O-O) 6... d6 7. Be2 $146 ({Predecessor:} 7. h3 Bg7 8. Bd3 O-O 9. f4 Nd7 10. Nge2 Nc5 11. O-O f5 12. Bb1 fxe4 13. Nxe4 Nxe4 14. Bxe4 {1-0 (21) Moeller,J (1823)-Zoeller,T (2026) Frankfurt 2010}) 7... Bg7 8. Nf3 Bg4 9. O-O O-O 10. Rb1 Qb6 11. Rd1 Rfc8 12. b3 Nd7 {[#] White must now prevent ...Qxe3.} 13. Qd2 Qa5 {The position is equal.} 14. Bb2 a6 15. a3 Bxf3 16. Bxf3 Nd4 17. Nd5 Nxf3+ 18. gxf3 Qd8 19. Qg5 Bxb2 20. Rxb2 e6 $132 {[%mdl 2048] Black is not keeping still} 21. Qxd8+ Rxd8 22. Ne3 Nc5 23. b4 Na4 24. Rbd2 Nc3 25. Rc1 Na4 26. Rcd1 Nc3 27. Rc1 Na4 28. Rcd1 Nc3 29. Rc1 Na4 30. Rcd1 Nc3 {Precision: White = 55%, Black = 80%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.19"]
[Round "2"]
[White "Robson, Ray"]
[Black "Izoria, Zviad"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "2660"]
[BlackElo "2599"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,79,0,0,0,18,21,21,14,18,11,11,13,4,6,13,0,0,0,0,-16,0,0,0,-17,0,0,-4,-19,97,129,120,141,296,272,300,303,286,280,578,52,77,0,0,0,55,0,0,0,868,868,868,803,810,0,737,0,731,720,712,711,29992,29993]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bxc6 dxc6 6. Nbd2 {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5} (6. O-O Qe7 7. h3 Rg8 8. Kh1 Nh5 9. c3 g5 10. Nxe5 g4 11. d4 Bd6 12. g3 Bxe5 13. dxe5 Qxe5 {0-1 (27) Aronian,L (2794)-Kramnik,V (2800) Berlin 2018}) 6... Be6 7. O-O Nd7 8. Nb3 Bb6 9. Ng5 Bxb3 10. axb3 f6 {LiveBook: 19 Games} 11. Nf3 O-O $146 ({Predecessor:} 11... Nf8 12. Nd2 Qd7 13. Nc4 Ne6 {½-½ (66) Zhang,X (2364)-Shen,Y (2460) Zhongshan 2015}) 12. Nd2 Nc5 13. Nc4 Qd7 14. Kh1 Ne6 15. g3 a6 16. Be3 Bd4 17. Bxd4 Qxd4 18. Qg4 Rae8 19. Rad1 Qc5 20. Ne3 a5 21. Rde1 Nd4 22. f4 exf4 23. gxf4 Nxc2 {[#]} (23... f5 $11 {remains equal.} 24. Qg2 fxe4 25. dxe4 Kh8) 24. Nf5 $1 $16 {[%csl Gf5][%cal Rg4g7][%mdl 512]} g6 25. Rc1 {[%mdl 1024] White has strong compensation.} Qb5 $2 (25... Rd8 $16) 26. Rf3 $1 $18 Nb4 (26... Qxb3 27. Rh3 $11) 27. Nh6+ Kh8 28. Qd7 $1 Nxd3 $2 (28... Nd5 {keeps fighting.}) 29. Rxd3 $2 ({Only move:} 29. Nf5 $1 $18 gxf5 30. Rg1 Nf2+ 31. Rxf2) 29... Rxe4 $14 30. Nf7+ (30. Rg1 $5 {[%cal Rf4f5]} Re2 31. Nf7+ Kg8 32. Ne5 $1 {[%mdl 512]} (32. Nh6+ Kh8 $11) 32... Rxe5 33. fxe5 Qxe5 34. Qd4 $18) 30... Kg8 31. Nh6+ Kh8 32. Nf7+ $40 {[%mdl 128] White has some attack.} (32. Rg1 $14 Re2 33. Nf7+ Kg8 34. Nh6+ Kh8 35. Nf7+ Kg8 {[#]} 36. Ne5 $1 {[%mdl 512]} (36. Nh6+ Kh8 $11) 36... Rxe5 37. fxe5 Qxe5 38. Qd4) 32... Kg8 $11 33. Nd8 Rfe8 $2 {[%mdl 8192]} (33... Qb4 $11) 34. Qf7+ $18 Kh8 35. Qxf6+ Kg8 36. Qf7+ Kh8 37. Qf6+ Kg8 {[#]} 38. Nf7 $1 {[%cal Rf7h6][%mdl 512]} Qh5 39. Ne5 Rf8 40. Rd8 {Precision: White = 57%, Black = 47%.} 1-0

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.19"]
[Round "2"]
[White "Akobian, Varuzhan"]
[Black "Liang, Awonder"]
[Result "1-0"]
[ECO "E10"]
[WhiteElo "2647"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,69,0,0,14,9,25,9,43,36,36,36,38,34,46,31,25,29,32,20,27,27,27,36,29,20,50,50,57,33,53,50,50,54,33,0,34,33,39,33,206,41,35,27,73,0,47,33,50,25,40,42,37,37,37,37,41,43,606,591]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. cxd5 exd5 5. Nc3 c6 6. Qc2 Be7 7. Bf4 {LiveBook: 116 Games} Be6 {D35: Queen's Gambit Declined: Exchange Variation} (7... g6 8. e3 Bf5 9. Bd3 Bxd3 10. Qxd3 Nbd7 11. O-O O-O 12. h3 Re8 13. Rfc1 Nb6 14. Qc2 Bd6 15. Bxd6 Qxd6 16. Ne5 Qe7 17. Nd3 Ne4 18. Ne5 {½-½ (18) Gareyev,T (2636)-Bruzon Batista,L (2694) Las Vegas 2014}) 8. h3 Nh5 $146 ({Predecessor:} 8... Bd6 9. Bxd6 Qxd6 10. e3 Nbd7 11. Bd3 b6 12. O-O O-O 13. Rad1 Rac8 14. Nh4 Rfe8 15. f4 {0-1 (51) Simeonidis,I (2268)-Makka,E (2061) Kallithea 2002}) 9. Bh2 Bd6 {The position is equal.} (9... Nd7 {seems wilder.} 10. g4 Nhf6 11. Ng5 Nf8 12. O-O-O h6) 10. Bxd6 Qxd6 11. e3 Nd7 12. Bd3 h6 13. a3 Nhf6 14. Na4 O-O 15. O-O b6 16. Rfc1 Rfc8 17. Ba6 Rc7 18. Nc3 {Black must now prevent Nb5!} b5 19. b4 Ne8 {Threatens to win with ...Nb8.} 20. a4 $1 $36 {[%cal Ba3a4,Ba4b5][%mdl 2080] White has good play.} Qxb4 21. Rcb1 $1 {[%cal Rb1b4]} Qe7 22. axb5 c5 23. dxc5 (23. b6 $5 axb6 24. Nb5 $16) 23... Qxc5 24. Rc1 Nb6 25. Nd4 Nf6 $2 {[#]} ({Black should play} 25... Nd6 $14) 26. Qb3 $2 (26. Nxd5 $1 $18 {[%mdl 512]} Qxc2 (26... Nbxd5 27. Qxc5) 27. Nxf6+ gxf6 28. Rxc2 (28. Nxc2 Rd8 $16) 28... Rxc2 29. Nxc2) 26... Qd6 27. Na4 Bd7 28. Nc3 (28. Rxc7 $16 Qxc7 29. Nc3) 28... Re8 29. Rc2 Nh7 30. Rac1 Ng5 31. Nce2 Nc4 32. Nf4 {b6 is the strong threat.} Ne6 33. Ndxe6 Bxe6 34. Qd3 Ree7 $2 {[%mdl 8192] [#]} (34... Rd8 $14) 35. Rxc4 $1 {[%mdl 512] Precision: White = 57%, Black = 46%.} 1-0

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.20"]
[Round "3"]
[White "Onischuk, Alexander"]
[Black "Nakamura, Hikaru"]
[Result "1/2-1/2"]
[ECO "A41"]
[WhiteElo "2672"]
[BlackElo "2787"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,79,57,29,23,17,33,0,18,14,31,-8,-19,-28,-37,-25,0,0,0,0,0,0,0,0,0,0,0,0,46,48,46,0,91,88,169,74,74,71,83,81,83,76,85,79,70,59,58,50,55,20,55,8,14,0,53,18,18,20,20,21,30,0,9,0,0,0,8,0,1,0]} 1. d4 {[%cal Bd2d4,Bd4d5][%mdl 32]} d6 2. Nf3 g6 3. c4 Bg7 4. Nc3 Nc6 5. d5 Ne5 6. Nxe5 Bxe5 7. g3 {LiveBook: 11 Games. A41: 1 d4 d6: Tartakower System and Modern Defence} h5 (7... c5 8. Bg2 Bg7 9. O-O Nf6 10. Qc2 O-O 11. Re1 e6 12. dxe6 Bxe6 13. Bxb7 Rb8 14. Bg2 Bxc4 15. Bg5 h6 16. Bxf6 Bxf6 17. b3 Qa5 18. Rac1 Qxc3 {½-½ (18) Lenic,L (2662)-Nakamura,H (2781) chess.com INT 2018}) 8. Bg5 c5 $146 ({Predecessor:} 8... Nf6 9. Bg2 Bf5 10. Qd2 Qc8 11. h3 Nh7 12. Be3 c5 13. dxc6 bxc6 14. Bd4 Bxd4 15. Qxd4 Nf6 16. e4 Be6 {½-½ (16) Muehlbauer,F-Zollstab,J Bayern 1997}) 9. dxc6 {White is slightly better.} bxc6 10. Bg2 Bd7 11. O-O h4 12. Ne4 hxg3 13. hxg3 f6 {[%cal Bf7f6,Bf6f5][%mdl 32]} 14. Be3 {Strongly threatening f4.} f5 15. f4 Bxb2 16. Rb1 $36 {[%mdl 2048] aiming for Nxd6+! White has the initiative.} Bf6 17. Nxf6+ Nxf6 18. Bd4 {Hoping for Bxf6.} O-O 19. c5 Be6 20. Bxc6 Rb8 21. Qa4 Nh5 (21... dxc5 $11 22. Bxc5 Rc8) 22. Kf2 $16 Qc7 (22... dxc5 $16 23. Bxc5 Rc8) 23. cxd6 (23. Bg2 $18 {is more deadly.}) 23... Qxd6 24. Bxa7 Rxb1 25. Rxb1 Nf6 26. Rd1 Qc7 27. Bf3 g5 28. Be3 gxf4 29. gxf4 Kf7 30. Rh1 Rg8 31. Bh5+ Kf8 32. Bf3 Kf7 $1 33. a3 Bd5 34. Bxd5+ Nxd5 35. Qb3 Qd6 36. Rd1 Rd8 {The position is equal.} 37. Rh1 Rc8 38. Rd1 Rd8 39. Rh1 Rc8 40. Rd1 {Precision: White = 44%, Black = 67%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.20"]
[Round "3"]
[White "Xiong, Jeffery"]
[Black "Caruana, Fabiano"]
[Result "0-1"]
[ECO "A61"]
[WhiteElo "2665"]
[BlackElo "2804"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,98,23,30,21,15,22,20,20,16,0,10,-9,-2,0,0,-1,0,-7,0,0,-4,-7,-19,-10,-3,-20,-21,-70,-70,-77,-72,-77,-81,-75,-75,-68,-40,-53,-44,-41,-48,-48,-48,-91,-91,-91,-89,-91,-73,-63,0,-80,-51,-125,-125,-129,-130,-160,-160,-156,-171,-173,-141,-200,-157,-164,-159,-276,-286,-285,-289,-275,-291,-270,-277,-297,-264,-304,-296,-270,-264,-411,-406]} 1. d4 Nf6 2. Nf3 e6 3. c4 c5 4. d5 d6 5. Nc3 exd5 6. cxd5 g6 7. Bf4 Bg7 8. e3 {A61: Modern Benoni: Nf3 without early e4} O-O 9. h3 Qe7 {LiveBook: 13 Games} 10. Nd2 {White has an edge.} Nh5 $146 ({Predecessor:} 10... Nbd7 11. Be2 Ne8 12. O-O Ne5 13. Bh2 f5 14. Qc2 Bd7 15. Rae1 g5 {1-0 (57) Bocharov,D (2580)-Badmatsyrenov,O (2450) Barnaul 2011}) 11. Bh2 f5 {[%cal Bf7f5,Bf5f4,Bf4e3,Be3f2][%mdl 32]} 12. Be2 f4 13. O-O {[%cal Bh1f1,Bf1f2,Bf2e2][%mdl 32]} fxe3 14. Nde4 exf2+ $1 15. Kh1 Bxc3 16. Nxc3 Ng7 17. Bf3 Nd7 18. Rxf2 Ne5 19. Re2 Nf5 {Hoping for ...Nd4.} 20. Bxe5 dxe5 21. d6 $1 {[%cal Rd6e7]} Nxd6 22. Qd5+ Nf7 23. Ne4 Rb8 24. Qxc5 Qxc5 25. Nxc5 b6 26. Ne4 Bf5 27. Nc3 Rbd8 28. a4 a5 29. Bd5 Rfe8 30. Bxf7+ Kxf7 31. Rf1 {White wants to play g4.} Ke6 {[#] ...Bd3 is the strong threat.} 32. Rfe1 Kf6 33. Rf1 Ke6 {aiming for ...Bd3.} 34. Rfe1 $1 Kd6 35. Re3 (35. Nb5+ $15 Kd7 36. Re3) 35... Kc6 $17 36. Nb5 Re7 37. g4 Bd3 38. Nc3 Bc4 39. Rc1 {[#] And now Nb5 would win.} Kb7 40. Re4 (40. Kg1 $17) 40... Rd4 41. Kg1 Bb3 42. Kf2 (42. Rce1 $17 Rxe4 43. Rxe4) 42... Rd2+ $19 43. Re2 Rf7+ 44. Ke3 Rd4 45. Nb5 Rdd7 46. Nc3 Rf4 47. Rd2 Rfd4 48. Rf2 Bxa4 49. Rf6 (49. Nxa4 $142 Rxa4 50. Rc3) 49... Bc6 {Precision: White = 56%, Black = 88%.} 0-1

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.20"]
[Round "3"]
[White "Zherebukh, Yaroslav"]
[Black "Robson, Ray"]
[Result "1-0"]
[ECO "D14"]
[WhiteElo "2640"]
[BlackElo "2660"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,101,17,8,6,35,35,33,33,35,28,31,28,24,31,35,25,52,52,56,50,82,79,79,77,82,81,75,76,76,81,70,68,70,74,66,67,61,58,62,79,114,67,67,58,76,29,33,26,25,27,21,33,29,14,101,91,107,112,295,285,754,755,1089,1066,29985,29986,29986,29987,29988,29985,29985,29986,29985,29986,29987,29988,29988,29987,29989,29988,29988,29989]} 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Bf4 Bf5 7. e3 e6 8. Qb3 Bb4 9. Ne5 {D14: Slav Defence: Exchange variation with ...Bf5} Bxc3+ 10. bxc3 Nxe5 11. Bxe5 O-O {LiveBook: 10 Games} 12. Rc1 Ne4 $146 ({Predecessor:} 12... Rc8 13. Qxb7 Ne4 14. f3 Qh4+ 15. g3 Qh6 16. Bf4 g5 {1-0 (52) Gajewski,G (2588)-Matlakov,M (2707) Batumi 2018}) 13. h4 f6 14. Bh2 $1 Qd7 15. Bb5 Qe7 16. Be2 Rac8 17. f3 Nd6 18. Qa3 Rc6 19. c4 Ra6 20. Bxd6 Qxd6 21. Qxd6 Rxd6 22. c5 Rc6 23. g4 Bg6 24. h5 Be8 25. Kd2 b6 26. Bb5 Rc8 27. Ba6 Rc6 28. Bd3 bxc5 29. Rxc5 Rxc5 30. dxc5 $14 {[%mdl 4096] Endgame KRB-KRB} h6 31. Rb1 {aiming for Rb7.} Bc6 32. f4 Kf7 33. Kc3 Ke7 34. Rb3 Ra8 $1 35. Ra3 a5 36. Rb3 Kd7 37. Rb6 e5 {[#]} (37... Kc7 $11 {remains equal.}) 38. fxe5 $1 $16 fxe5 {[#]} 39. a4 $1 {[%cal Ba2a4,Ba4b5][%mdl 32]} Kc7 $2 (39... Bxa4 $16 40. Rd6+ Kc7) 40. Bb5 $18 Bxb5 $2 (40... Bd7 41. g5 Rh8) 41. axb5 {KR-KR} a4 42. Rg6 Ra5 43. Rxg7+ {White mates.} Kd8 44. Kb4 a3 45. Kxa5 {KR-KP} a2 46. Kb6 a1=Q 47. c6 {[%cal Bc5c6,Bc6c7][%mdl 32]} Ke8 48. c7 {[%cal Rc7c8]} Kf8 49. Rh7 {[%cal Rc7c8]} Kg8 50. Rd7 {[%cal Rc7c8]} Qc3 51. Kb7 {Precision: White = 86%, Black = 42%.} 1-0

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.20"]
[Round "3"]
[White "Izoria, Zviad"]
[Black "Shankland, Samuel"]
[Result "0-1"]
[ECO "D41"]
[WhiteElo "2599"]
[BlackElo "2671"]
[Annotator "TA RC"]
[PlyCount "68"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,68,-13,14,12,24,0,18,27,43,43,63,15,17,7,18,18,29,0,14,0,26,24,17,15,12,9,14,3,12,0,0,-24,0,0,0,0,0,-10,-8,-8,-8,-8,0,-92,-33,-117,-114,-260,-256,-717,-710]} 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 Nxd5 5. Nf3 c5 6. e3 cxd4 7. exd4 Nxc3 8. bxc3 Qc7 9. Bb2 Nd7 10. Bd3 Be7 11. O-O {D41: Queen's Gambit Declined: Semi-Tarrasch with 5 cxd5} b6 $146 ({Predecessor:} 11... O-O 12. Re1 b6 13. a4 Bb7 14. Qe2 Bf6 15. h4 Rfd8 16. c4 Bxf3 17. Qxf3 Rac8 18. h5 Nc5 19. dxc5 Bxb2 20. cxb6 axb6 {1-0 (61) Goh,W (2319)-Roiz,M (2544) playchess.com INT 2004}) 12. d5 {Black must now prevent dxe6.} O-O 13. dxe6 {The position is equal.} fxe6 14. Qc2 h6 15. Bh7+ Kh8 16. Be4 Rb8 17. c4 Bf6 18. Ba3 Nc5 19. Rad1 Bd7 20. Bxc5 bxc5 21. Rb1 Rb4 22. Qe2 Rfb8 23. Bc2 Rxb1 24. Bxb1 Kg8 25. h4 Kf8 26. Qe3 Rb2 27. g4 {And now g5 would win.} Qd6 28. g5 hxg5 29. hxg5 Bd4 $36 {[%mdl 2048] Black has some pressure.} 30. Nxd4 Qxd4 31. Be4 (31. Qf3+ $11 {keeps the balance.} Ke7 32. Bg6) 31... Rxa2 (31... Ke7 $1 $17 {...Qxe3 is the strong threat.} 32. Qf3 Rxa2) 32. Qf3+ {[#]} (32. Qxd4 $15 cxd4 33. Rb1) 32... Ke7 $1 $17 33. Rd1 {[#]} (33. Bc6 $17 {keeps fighting.}) 33... Ra1 $1 $19 {[%cal Ra1d1]} ({Not} 33... Rd2 34. Rb1 $15) 34. Bb1 $2 {[#]} (34. Rxa1 Qxa1+ 35. Kg2) 34... Bc6 $1 {[%mdl 512] Precision: White = 22%, Black = 66%.} 0-1

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.20"]
[Round "3"]
[White "Lenderman, Aleksandr"]
[Black "Akobian, Varuzhan"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2599"]
[BlackElo "2647"]
[Annotator "TA"]
[PlyCount "137"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,136,37,31,36,38,43,44,41,35,47,32,49,27,35,25,39,29,36,12,15,11,9,19,8,19,26,37,54,50,50,18,35,36,27,33,23,27,48,33,52,32,35,14,19,18,18,16,15,14,14,14,14,14,14,16,15,18,22,14,16,14,12,12,17,17,18,17,19,20,26,10,23,8,8,8,15,15,15,15,15,15,16,8,8,8,8,8,8,8,4133,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,236,236,185,236,236,239,239,263,263]} 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 a6 5. cxd5 exd5 6. Bg5 Be7 7. e3 c6 8. Qc2 Nbd7 9. Bd3 O-O 10. O-O h6 {D61: Queen's Gambit Declined: Classical: 7 Qc2} 11. Bh4 {LiveBook: 13 Games} Nh5 12. Bxe7 Qxe7 {White is slightly better.} 13. Rfe1 Nhf6 (13... Re8 14. e4 dxe4 15. Rxe4 Qf8 16. Rxe8 Qxe8 17. Re1 Qd8 18. d5 Nhf6 19. dxc6 bxc6 {½-½ (62) Grischuk,A (2752)-Aronian,L (2784) chess.com INT 2016}) 14. Rab1 $146 ({Find the theoretical novelty and annotate with similar games:} 14. Rad1 Qd6 15. h3 {0-1 (30) Cooke,E (2253)-Werner,D (2346) Budapest 2007}) 14... Qd6 15. b4 Re8 16. a4 a5 17. bxa5 Rxa5 18. Nd2 Ra8 19. Nb3 b6 20. Rec1 Ba6 21. Bf5 c5 22. Rd1 cxd4 23. Nxd4 Nc5 24. Qb2 Rab8 25. Qa3 (25. Bc2 {NOTEXT} Ng4 26. Nf3 Nf6 27. h3 Bc4 28. Nd4) 25... Red8 26. Ncb5 Bxb5 $1 27. Nxb5 Qf8 28. Qb4 Ra8 29. Bc2 Ne6 30. Qb2 Rdc8 31. Bf5 Rxa4 32. Nc3 Rac4 33. Nxd5 Nxd5 34. Rxd5 Rb4 35. Qa2 Ra8 36. Qc2 Rc8 37. Qd1 Rxb1 38. Qxb1 Rc6 39. g3 Rd6 40. Qd1 Rxd5 41. Qxd5 Qe8 42. Kf1 Nc7 43. Qd4 Qb5+ 44. Bd3 Qd5 45. Qc3 Ne8 46. e4 (46. Bc4 {NOTEXT} Qc5 47. Qd3 Kf8 48. Kg2 Nd6 49. Bd5) 46... Qc5 47. Qxc5 (47. Qc2 {NOTEXT} Kf8 48. f4 f6 49. Kg2 Ke7 50. Kf3) 47... bxc5 $11 {[%mdl 4096] Endgame KB-KN} 48. Ke2 f6 49. f4 Kf7 50. Bc4+ Ke7 51. e5 g5 52. Kf3 gxf4 53. gxf4 fxe5 54. fxe5 Nf6 $2 {[%mdl 8192] [#]} (54... Nc7 $11) 55. h4 $2 (55. exf6+ $18 Kxf6 56. Be2) 55... Nd7 56. Ke4 Nb6 57. Bg8 Kf8 58. Ba2 Ke7 59. Bg8 Kf8 60. Bb3 Ke7 61. h5 c4 62. Bd1 Nd7 63. Kd4 c3 64. Bb3 (64. Kd5 {NOTEXT} Nb8 65. Ba4 Na6 66. Kc4 Ke6 67. Kd4) 64... c2 $2 (64... Nb8 $11) 65. Bxc2 $18 Nxe5 66. Kxe5 {[#] White threatens Bb3 and mate.} Kf7 67. Kf5 Kg7 68. Ke6 Kh8 69. Kf7 $2 {Precision: White = 57%, Black = 66%.} (69. Bd1 Kh7 70. Bg4) 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.20"]
[Round "3"]
[White "Liang, Awonder"]
[Black "So, Wesley"]
[Result "1/2-1/2"]
[ECO "C03"]
[WhiteElo "2552"]
[BlackElo "2786"]
[Annotator "TA"]
[PlyCount "113"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,113,15,10,15,21,14,13,21,0,20,19,22,0,0,0,30,24,62,0,0,0,0,-14,20,14,16,20,9,17,16,18,12,12,97,87,119,116,143,141,145,110,114,92,81,36,33,25,37,22,65,61,75,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,0,0,0]} 1. e4 e6 2. d4 d5 3. Nd2 Be7 4. Bd3 c5 5. dxc5 Nf6 6. Qe2 O-O 7. Ngf3 {C03: French Tarrasch: Unusual Black 3rd moves} a5 8. O-O Na6 9. e5 Nd7 10. c4 Ndxc5 11. Bb1 {LiveBook: 35 Games} d4 12. Rd1 d3 13. Qe3 {[#]} b6 $146 ({Predecessor:} 13... Nb4 14. Ne4 {1-0 (56) Vachier Lagrave,M (2458)-Baklan,V (2595) Paris 2004}) 14. Ne1 {[%cal Re1d3]} Bb7 15. Nxd3 Qc7 16. Nf4 Rfd8 17. Re1 Bg5 18. Nf1 Nb4 {[#] White must now prevent ...Nbd3!} 19. Qg3 (19. Qh3 $1 $14 h6 20. Qg3) 19... Bxf4 $1 $11 20. Bxf4 {White wants to play Bg5.} Nbd3 21. Re3 {[%cal Rb1d3]} Ne4 22. Qh4 Qxc4 23. Bg5 Rd4 24. Bxd3 $40 {[%mdl 128] Black needs to defend precisely.} Nxg5 25. Bxc4 Rxh4 26. Be2 Rc8 (26... Rb4 $11) 27. Rb3 $16 Re4 28. Ne3 Rb4 29. Rxb4 axb4 30. Rd1 h6 31. h4 Ne4 32. Bf3 Nc5 33. Bxb7 Nxb7 $14 {[%mdl 4096] Endgame KRN-KRN} 34. Rd4 b3 35. axb3 Na5 36. b4 (36. Rb4 $16) 36... Rc1+ $1 $11 {The position is equal.} 37. Kh2 Nc6 38. Rc4 Rxc4 39. Nxc4 {KN-KN} b5 $1 {[%cal Rb5c4]} 40. Nd6 Nxb4 41. Nxb5 Nd3 42. Kg3 Nxb2 43. f4 h5 44. Nd6 Kf8 45. Kf3 Nd3 46. Ke4 Nf2+ 47. Kf3 Ng4 48. Ke4 Nh6 49. f5 Ke7 50. Kf4 Ng4 51. fxe6 Kxe6 52. Nf5 g6 53. Nd4+ Kd5 54. Nf3 Nf2 55. Kg5 {[#] Kf6 is the strong threat.} Ke6 56. Kf4 Kd5 57. Kg5 {Precision: White = 67%, Black = 69%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.21"]
[Round "4"]
[White "Caruana, Fabiano"]
[Black "Izoria, Zviad"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "2804"]
[BlackElo "2599"]
[Annotator "TA"]
[PlyCount "162"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]

{[%evp 23,162,0,0,0,20,0,12,0,18,21,20,9,46,46,38,39,52,24,35,22,18,32,14,-9,-5,-5,-10,-12,-15,-1,0,-2,-12,-33,-28,-36,0,0,0,0,0,0,0,0,0,0,0,0,0,-46,0,-30,-25,-34,-12,-8,-8,-27,-15,-56,-19,-33,-20,-52,-27,-75,-26,-77,-13,-18,-27,-55,0,0,0,0,4,0,25,22,28,20,19,16,28,10,10,12,20,8,18,0,0,0,8,3,4,0,0,0,0,0,6,0,0,0,0,0,0,0,0,-8,-2,-22,-22,-107,-107,-291,-68,-166,-218,-935,-904,-863,-863,-29974,-29975,-29978,-29979,-29979,-29980,-29980,-29980,-29978,-29978,-29981,-29982,-29983,-29984,-29983,-8]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. O-O h6 7. Re1 O-O 8. h3 a5 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} 9. Nbd2 a4 10. Nf1 Bd7 11. d4 Bb6 12. Ng3 Re8 {LiveBook: 3 Games} 13. Bf1 {[#]} Qb8 $146 ({Predecessor:} 13... Na5 14. b4 axb3 15. axb3 {1-0 (65) Leko,P (2693)-Ganguly,S (2668) Doha 2016}) 14. d5 Ne7 15. Nh4 {[%cal Bf3h4,Bh4f5,Bf5e3,Be3c4][%mdl 32]} Kh7 16. Qf3 Qd8 17. Bd2 Neg8 18. Nhf5 $1 g6 19. Ne3 Kg7 20. Nc4 Ba7 21. Be3 Bxe3 22. Qxe3 Nh7 23. f4 b5 24. Nd2 exf4 25. Qxf4 Qf6 26. Qe3 $1 Ne7 27. Qf3 Rab8 28. a3 c5 29. Rad1 Nc8 30. Qe3 Nb6 31. Nf3 Ng5 32. Nh2 $1 Nh7 33. Be2 Qg5 34. Qf2 Qf6 35. Qe3 Qg5 36. Qf3 Qf6 (36... h5 {seems wilder.} 37. Bd3 h4 38. Nh1 Nc4 39. Bxc4 bxc4 40. Re2 Nf6) 37. Bd3 Qxf3 38. Nxf3 f6 39. h4 h5 40. Kf2 Nf8 41. Nd2 Nc8 {[%cal Bb6c8,Bc8e7,Be7g8,Bg8h6][%mdl 32]} 42. Rb1 Ne7 43. Ngf1 Ng8 (43... c4 $5 {[%cal Rc4d3]} 44. Bc2 Bc8 $11) 44. Ne3 Nh6 (44... c4 $5 {[%cal Rc4d3]} 45. Bc2 Nh6 $15) 45. Be2 (45. b3 $11) 45... f5 (45... c4 $17) 46. b3 $11 axb3 47. Rxb3 c4 ({Reject} 47... fxe4 48. Reb1 $11) ({Black should try} 47... f4 $15 48. Nc2 Ng4+ 49. Bxg4 hxg4) 48. Rb4 fxe4 49. Reb1 {Hoping for Ndxc4!} Ra8 {[#]} 50. a4 $1 {[%cal Ra4b5][%mdl 512]} Rxa4 51. Rxa4 bxa4 52. Ndxc4 Nf7 53. Rb7 Kf6 54. Bd1 Ra8 55. Nb6 Rd8 56. Nec4 Bb5 57. Nd2 Bd3 58. Ke3 Ne5 (58... Nh6 {is more complex.} 59. Nxe4+ Bxe4 60. Kxe4 Nf5 61. Bxa4 Nxh4 62. g4 hxg4 63. Kf4 g5+) 59. Bxa4 g5 60. hxg5+ (60. Rc7 {is interesting.} Nfg6 61. hxg5+ Kxg5 62. Rc8 Rxc8 63. Nxc8 Ng4+ 64. Kd4) 60... Kxg5 61. Nxe4+ Bxe4 62. Kxe4 {And now Rc7 would win.} Nfg6 63. Nd7 Rc8 {...Rc4+ is the strong threat.} 64. Bc6 Nxc6 65. dxc6 Rxc6 {[%mdl 4096] Endgame KRN-KRN} 66. Kd4 Nf4 67. c4 Nxg2 {Threatening ...h4.} 68. Kd5 Rc8 {Strongly threatening ...Ne3+.} 69. Nb6 (69. Rb5 $11 {keeps the balance.}) 69... Ne3+ $17 70. Ke6 $2 {[#]} (70. Ke4 $17 Re8+ 71. Kf3) 70... Rc6 $2 ({Better is} 70... Rh8 $1 $19 {[%cal Rh8h6]} 71. Rg7+ Kf4 72. Nd5+ Ke4) 71. Kd7 (71. Rg7+ $15 Kh6 72. Rb7) 71... Nxc4 $19 72. Kxc6 $2 (72. Nd5) 72... Na5+ 73. Kxd6 Nxb7+ {KN-KN} 74. Kd5 {[#]} Kf4 $1 {Black mates.} (74... h4 $2 75. Ke4 $19) 75. Nc4 h4 {[%cal Bh5h4,Bh4h3][%mdl 32]} 76. Nd2 h3 77. Nf1 Nd8 78. Kd4 Nf7 79. Kd5 Ne5 80. Kd4 Ng4 81. Kd3 Ke5 $2 {[%mdl 32768] Precision: White = 41%, Black = 56%. . Sensor Board Error (Ke4/e5)?} (81... Kf3 {mates} 82. Nd2+ Kg2 83. Nb1 h2 84. Na3 h1=Q 85. Kc2 Qh7+ 86. Kc1 Qh6+ 87. Kc2 Qc6+ 88. Kb2 Ne3 89. Kb3 Qe4 90. Kc3 Nd5+ 91. Kb2 Qb4+ 92. Kc1 Qxa3+ 93. Kd2 Qc3+ 94. Kd1 Ne3+ 95. Ke2 Nf1 96. Kd1 Qd2#) 0-1

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.21"]
[Round "4"]
[White "Nakamura, Hikaru"]
[Black "Liang, Awonder"]
[Result "1/2-1/2"]
[ECO "A08"]
[WhiteElo "2787"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]

{[%evp 25,63,-27,-27,-27,-23,-41,-18,-41,-37,-44,-32,-34,-39,-62,-35,-52,-57,-71,-63,-63,-61,-62,-62,-60,-23,-25,-20,-85,-24,-41,-2,-10,0,-1,0,-10,-10,-10,-10,-10]} 1. Nf3 Nf6 2. g3 e6 3. Bg2 Be7 4. O-O d5 5. d3 O-O 6. Nbd2 c5 7. e4 {[%cal Be2e4,Be4e5][%mdl 32]} Nc6 8. Re1 b5 9. e5 Nd7 10. Nf1 Bb7 11. h4 Qc7 12. Bf4 Rfc8 {C00: French: Unusual White 2nd moves} 13. Ne3 Qd8 {LiveBook: 4 Games} 14. c3 $1 (14. Ng4 Bf8 15. Bg5 Qe8 16. c3 h6 17. Bf4 a5 18. Qd2 b4 19. c4 Ne7 20. h5 {1-0 (59) Kuzubov,Y (2699)-Grischuk,A (2772) Riadh 2017}) 14... a5 {Black has an edge.} 15. Ng4 Bf8 16. h5 h6 17. Qd2 b4 18. c4 Ne7 19. Nh4 Ra7 $146 ({Predecessor:} 19... Rab8 20. Rac1 {1-0 (46) Praggnanandhaa,R (2517)-Kumar,N (2271) Stockholm 2017}) 20. Rad1 a4 21. Ne3 Nb6 22. Qe2 Kh8 23. Nf3 Nc6 24. Rc1 b3 25. axb3 axb3 26. Qd1 (26. cxd5 $11 {keeps the balance.} Nxd5 27. Nxd5 Qxd5 28. Nd2) 26... Nd4 (26... Nb4 $17 {White must now prevent ...dxc4.} 27. Qxb3 Bc6) 27. cxd5 $11 Nxd5 28. Nxd4 {[#] And now Nb5 would win.The position is equal.} Nxf4 29. gxf4 cxd4 30. Nc4 Bd5 31. Bxd5 exd5 32. Nd6 $1 {Precision: White = 56%, Black = 63%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.21"]
[Round "4"]
[White "So, Wesley"]
[Black "Lenderman, Aleksandr"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2786"]
[BlackElo "2599"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]

{[%evp 14,92,15,0,0,-2,0,0,0,1,8,-16,0,0,1,-3,20,13,1,8,8,5,14,6,0,-6,0,0,56,0,93,45,41,74,67,8,0,0,0,0,0,0,0,0,14,16,14,19,25,15,20,15,15,14,36,27,22,12,35,48,47,46,77,77,77,77,85,77,85,84,93,8,23,34,56,0,0,0,0,0,0]} 1. Nf3 d5 2. e3 Nf6 {[%cal Bg8f6,Bf6d5,Bd5b4][%mdl 32]} 3. c4 e6 4. b3 Be7 5. Bb2 O-O 6. Nc3 c5 7. cxd5 Nxd5 8. Qc2 {LiveBook: 19 Games. A13: English Opening: 1...e6} Nb4 (8... b6 9. Nxd5 exd5 10. d4 Nc6 11. Be2 Be6 12. O-O Rc8 13. dxc5 bxc5 14. Rac1 Qb6 15. Rfd1 Rfd8 {1-0 (40) Karjakin,S (2763)-Kramnik,V (2800) Moscow 2018}) 9. Qe4 $146 ({Predecessor:} 9. Qb1 b6 10. a3 Nd5 11. Nxd5 exd5 12. d4 Nc6 13. Bb5 Bd7 14. O-O Nxd4 15. Nxd4 cxd4 16. Bxd7 Qxd7 17. Bxd4 {½-½ (46) Hou,Y (2654)-Bluebaum,M (2631) Karlsruhe/Baden-Baden 2018}) 9... f5 10. Qb1 N8c6 11. a3 Nd5 12. Qc2 b6 13. Nxd5 exd5 14. d4 Be6 15. Bb5 $36 {[%mdl 2048] White fights for an advantage.} Na5 16. Bc3 Nb7 17. O-O Nd6 18. Ba6 Ne4 19. Ne5 Bd6 20. Bb2 f4 (20... Qg5 $11) 21. f3 $14 Ng5 {[#]} (21... Ng3 $1 $11 22. Rfe1 (22. hxg3 fxg3 23. dxc5 Qh4 $17) 22... Nh5) 22. exf4 $1 $16 Rxf4 23. Rae1 $1 cxd4 24. Nd3 (24. Bc1 $14 Rh4 25. Qc6) 24... Rh4 $11 25. g3 Rh6 26. Bxd4 Bh3 ({Much weaker is} 26... Bxa3 $6 27. b4 $16) 27. Bb7 Bxf1 28. Kxf1 Rb8 29. Bxd5+ Kh8 {[#] Threatens to win with ...Bxg3!} 30. f4 Bc5 31. fxg5 Bxd4 32. gxh6 Qxd5 33. hxg7+ Bxg7 34. Nf2 $1 Rf8 35. Re4 Bd4 36. Rf4 Rxf4 37. gxf4 a5 38. a4 b5 39. axb5 {Hoping for Qd3.} Qxb5+ 40. Kg2 Qd5+ 41. Ne4 h6 42. Kg3 (42. Qd3 $16) 42... Qg8+ 43. Kf3 Qd5 44. h3 (44. Ke2 $14) 44... Qh5+ $1 {The position is equal.} 45. Kg3 $1 Qg6+ 46. Kf3 Qh5+ $1 {Precision: White = 67%, Black = 71%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.21"]
[Round "4"]
[White "Robson, Ray"]
[Black "Shankland, Samuel"]
[Result "0-1"]
[ECO "C83"]
[WhiteElo "2660"]
[BlackElo "2671"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,88,45,19,22,3,33,30,30,21,28,25,30,20,31,22,11,-65,-62,-96,-99,-127,-127,-145,-136,-130,-125,-143,-133,-120,-131,-166,-152,-199,-210,-175,-193,-335,-331,-285,-282,-485,-477,-581,-270,-403,-379,-408,-391,-356,-342,-477,-481,-643,-654,-781,-719,-778,-771,-895,-889,-884,-874,-895,-852,-5335,-5289,-5508,-5712,-5414,-5293,-1821,-1204]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Bf4 {LiveBook: 4 Games} O-O {C83: Open Ruy Lopez: 9 c3 Be7} 11. Nd4 Nxd4 (11... Na5 12. f3 Nxb3 13. axb3 Nc5 14. b4 Nd7 15. Nc6 Qe8 16. Nd2 Bh4 17. Bg3 Bxg3 18. hxg3 {1-0 (44) Grischuk,A (2761)-Mamedyarov,S (2800) Paris 2017}) 12. cxd4 {Black must now prevent f3.} f6 {White has an edge.} 13. Nd2 fxe5 14. Bxe5 {[#] Nxe4 is the strong threat.} Nd6 $146 ({Predecessor:} 14... Nxd2 15. Qxd2 Bd6 16. f4 Bxe5 17. fxe5 Qe7 18. Qe3 Rxf1+ 19. Rxf1 {1-0 (29) Konyves,A (1691)-Dopita,B (2136) Brno 2017}) 15. Bc2 Qd7 16. Re1 Nc4 17. Nf3 (17. Nxc4 $11 bxc4 18. Re2) 17... Bg4 $15 {[%cal Be6g4,Bg4f3,Bf3d5][%mdl 32]} 18. Qd3 g6 19. b3 Bxf3 $1 20. bxc4 dxc4 $40 {[%mdl 128] Black goes for the king.} 21. Qe3 Bd5 22. Qg3 {And now Bxg6! would win.} Bf6 23. h4 Qg7 24. Re3 c6 25. Rae1 {[#]} Qh6 $1 26. Bxf6 Rxf6 27. Re8+ (27. f3 {is a better defense.}) 27... Rxe8 $19 28. Rxe8+ Kf7 ({Weaker is} 28... Rf8 29. Rxf8+ Kxf8 30. Qd6+ Kf7 31. Qd7+ Kf8 32. Qd6+ Ke8 33. Qb8+ Kf7 34. Qc7+ Ke6 35. Qc8+ Kf6 36. Qd8+ Kf7 37. Qd7+ Kg8 38. Qe8+ Kg7 39. Qe5+ Kf7 40. Qc7+ Ke6 41. Qc8+ Kf6 42. Qd8+ Kg7 43. Qe7+ Bf7 44. Qe5+ Kg8 45. Qb8+ Qf8 46. Qg3 $17) 29. Qe5 $2 (29. Ra8 {was called for.} Qc1+ 30. Kh2) 29... Qc1+ 30. Bd1 {[%csl Ge8][%cal Re5e7]} Kg7 (30... Qxd1+ $142 31. Kh2 Re6 32. Rxe6 Bxe6 33. Qf4+ Ke8 34. Qb8+ Ke7 35. Qc7+ Bd7 36. Qe5+ Kd8 37. Qb8+ Bc8 38. Qd6+ Ke8 39. Qxc6+ Bd7 40. Qe4+ Kd8 41. Qa8+ Ke7 42. Qe4+ Be6 43. Qb7+ Bd7 44. Qe4+ Be6 45. Qb7+ Kf6) 31. Qe7+ (31. Re7+ $142 Bf7 32. Qe2) 31... Rf7 32. Qe5+ Kh6 33. Qe1 Qf4 34. g4 Kg7 {Black is clearly winning.} 35. g5 c3 {Strongly threatening ...c2.} 36. Qe5+ Qxe5 37. dxe5 {[%mdl 4096] Endgame KRB-KRB} Rd7 38. h5 gxh5 {Threatens to win with ...Bf7.} 39. Bc2 Bf7 40. Rc8 Rd2 41. Rc7 Rxc2 42. e6 Re2 43. Rxf7+ Kg6 44. Kf1 Rxe6 {Precision: White = 33%, Black = 85%.} 0-1

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.21"]
[Round "4"]
[White "Akobian, Varuzhan"]
[Black "Xiong, Jeffery"]
[Result "1/2-1/2"]
[ECO "D83"]
[WhiteElo "2647"]
[BlackElo "2665"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,96,6,11,0,9,0,0,0,0,0,0,0,0,7,8,8,25,24,74,66,64,59,65,53,67,34,44,48,69,67,111,125,125,78,110,116,285,91,110,0,0,0,0,0,0,0,0,19,37,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Rc1 c5 7. dxc5 Be6 8. Nf3 Nc6 9. Be2 Ne4 10. Nd4 Nxd4 {D83: Grünfeld: 4 Bf4 Bg7 5 e3 0-0} 11. exd4 Nxc3 12. bxc3 dxc4 13. Bf3 (13. O-O Bd5 14. Qa4 Qe8 15. Qb4 a5 16. Qa3 e5 17. dxe5 Bxe5 18. Be3 {0-1 (82) Inarkiev,E (2689)-Salem,A (2638) Riadh 2017}) 13... Bd5 14. O-O Qd7 {LiveBook: 6 Games} 15. Re1 (15. Rb1 {is interesting.} b6 16. Rb4 Rfe8 17. Bxd5 Qxd5 18. cxb6 axb6 19. a4) 15... b6 16. Rxe7 Qxe7 17. Bxd5 bxc5 $146 ({Predecessor:} 17... Rad8 18. Bd6 {½-½ (39) Palm,H-Hollis,A ICCF corr 1982}) 18. Bxa8 ({Reject} 18. Bxc4 Rad8 $17) 18... Rxa8 19. d5 {[%cal Bd4d5,Bd5d6][%mdl 32]} Rd8 20. Qf3 h6 21. h3 f5 22. d6 $36 {[%mdl 2048] Black is under pressure.} Qe6 23. h4 g5 24. hxg5 hxg5 25. Bxg5 Rxd6 26. Qa8+ Kh7 27. Qxa7 Rd3 28. Qxc5 Rxc3 29. Rxc3 Bxc3 30. Be3 Qe4 31. a4 Be5 $2 (31... Kg6 $16) 32. g3 $2 (32. Qe7+ $18 {and the rest is easy.} Kg6 33. Qe8+ Kf6 34. Qf8+ Ke6 35. g3) 32... Kg6 {[#]} 33. Qb6+ (33. Qc8 $1 $16 {Hoping for a5.} Kf7 34. Qd7+ Kf6 35. a5) 33... Kf7 $11 34. Qa7+ Ke6 35. Qb6+ Kf7 36. a5 f4 37. gxf4 Bxf4 38. a6 {[#] Threatens to win with a7.} Bxe3 $1 {The position is equal.} 39. fxe3 {[%mdl 4096] Endgame Qb7+ is the strong threat. KQ-KQ} c3 40. Qc7+ Ke6 41. Qc8+ ({Resist} 41. Qxc3 Qb1+ 42. Kh2 Qa2+ 43. Kg3 Qxa6 $14) 41... Ke7 42. Qxc3 (42. Qc5+ {keeps more tension.} Kd7 43. a7 c2 44. Kf2 c1=R 45. Qxc1) 42... Qg6+ 43. Kf2 Qxa6 44. Qe5+ Kf7 45. Kg3 Qg6+ 46. Kf3 Qc6+ 47. e4 Qf6+ 48. Qxf6+ Kxf6 {Precision: White = 41%, Black = 64%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.21"]
[Round "4"]
[White "Zherebukh, Yaroslav"]
[Black "Onischuk, Alexander"]
[Result "1/2-1/2"]
[ECO "E06"]
[WhiteElo "2640"]
[BlackElo "2672"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,59,18,16,17,5,35,8,6,8,18,16,16,16,16,16,16,16,18,18,21,18,25,29,27,24,44,31,31,5,18,0,0,0,19,0,4,0]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 a6 8. a4 Bd7 9. Rd1 {E05: Open Catalan: 5 Nf3 Be7} Bc6 10. Bg5 Nbd7 11. Nbd2 h6 12. Bxf6 Nxf6 13. Nxc4 {LiveBook: 7 Games} Be4 14. Qc1 {[#]} Bd6 $146 ({Predecessor:} 14... a5 15. Nfe5 Bxg2 16. Kxg2 c6 {1-0 (52) Gelfand,B (2724)-Harikrishna,P (2750) Moscow 2017}) 15. Nfd2 Bxg2 16. Kxg2 Bb4 17. Nf3 Qe7 18. Nce5 c5 19. Nd3 {[%cal Rd4c5]} cxd4 20. Nxb4 Qxb4 21. Rxd4 Qb6 22. a5 Qb5 23. Rc4 Rfd8 24. Qc2 b6 25. axb6 Qxb6 26. Rc6 Qb5 {The position is equal.} 27. Rc5 Qb6 28. Rc6 Qb5 29. Rc5 Qb6 30. Rc6 {Precision: White = 58%, Black = 69%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.22"]
[Round "5"]
[White "Onischuk, Alexander"]
[Black "Robson, Ray"]
[Result "1/2-1/2"]
[ECO "D85"]
[WhiteElo "2672"]
[BlackElo "2660"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,101,13,13,10,10,7,16,16,16,16,16,16,16,16,10,8,8,10,8,8,33,31,32,16,29,29,31,26,40,22,22,22,27,27,29,29,60,60,60,60,60,60,60,60,68,21,22,20,20,20,22,18,18,19,33,29,41,41,41,42,44,43,44,10,10,10,10,10,10,8,8,8,13,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Be3 Qa5 9. Qd2 Nc6 10. Rb1 cxd4 {D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3} 11. cxd4 O-O 12. Qxa5 Nxa5 13. Bd3 Bg4 {LiveBook: 5 Games} 14. h3 Bxf3 $1 15. gxf3 Rfd8 16. d5 e6 $1 17. Bg5 {[#]} f6 $146 ({Find the theoretical novelty and annotate with similar games:} 17... Bc3+ 18. Ke2 {½-½ (37) Socko,B (2584)-Swiercz,D (2655) Civitanova Marche 2016}) 18. Bd2 b6 19. Bxa5 bxa5 20. Bc4 Rac8 21. Bb3 exd5 22. Bxd5+ Kf8 23. O-O {Threatens to win with Rb7.} Rc7 24. Rb5 f5 25. Rxa5 Bd4 26. Rb5 Kg7 27. Rd1 Bb6 28. Rd2 Rc3 29. Kg2 Kf6 30. Re2 Rdc8 31. Bb3 R8c5 32. e5+ Ke7 33. Rxc5 Rxc5 $14 {[%mdl 4096] Endgame KRB-KRB} 34. f4 Rc7 35. h4 Rd7 36. Rc2 Rd4 37. Kg3 Rd3+ 38. f3 Ba5 39. Rc8 Be1+ 40. Kg2 Rd8 41. Rc1 Bd2 42. Rc4 Be3 43. h5 gxh5 44. Rc7+ Rd7 {The position is equal.} 45. Rc6 Rd2+ 46. Kf1 Rf2+ 47. Ke1 {[#] Hoping for e6.} Rxf3 48. Ke2 Rg3 49. Rf6 Bxf4 50. Rxf5 Bg5 51. Rf7+ {Precision: White = 79%, Black = 77%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.22"]
[Round "5"]
[White "Shankland, Samuel"]
[Black "Caruana, Fabiano"]
[Result "1/2-1/2"]
[ECO "D27"]
[WhiteElo "2671"]
[BlackElo "2804"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,87,13,15,69,69,68,69,67,68,65,72,90,69,64,69,63,65,109,102,116,108,110,115,109,108,104,72,105,95,107,114,124,120,120,101,110,111,106,85,98,65,56,55,49,32,33,33,36,36,39,38,35,36,37,40,84,84,84,81,89,89,93,93,95,95,119,23,23,22,66,67,59,45,40,8]} 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. a4 cxd4 8. exd4 {LiveBook: 52 Games} g6 $146 {D27: Queen's Gambit Accepted: Classical main line: 7 e4!? and 7 a4} (8... Nc6 $11) ({Predecessor:} 8... Nc6 9. Nc3 Be7 10. Re1 O-O 11. h4 Nb4 12. Ne5 Nc6 13. Be3 Qc7 14. Bf4 Bd6 15. Rc1 Rd8 16. Bd3 Bd7 17. Bg5 Nxe5 18. dxe5 Bxe5 {1-0 (91) Jobava,B (2664)-Ivanchuk,V (2786) Dresden 2008}) 9. Nc3 $14 {And now d5 would win.} Bg7 $1 10. d5 exd5 11. Re1+ Be6 12. Nxd5 $1 Nxd5 13. Bxd5 (13. Ng5 {with more complications.} Nc7 14. Bxe6 fxe6 15. Nxe6 Qxd1 16. Nxg7+ Kf8 17. Rxd1 Kxg7 18. Bf4) 13... O-O $1 14. Bxe6 fxe6 15. Qe2 Qd5 16. Rd1 Qf5 {[#]} 17. Ng5 $1 {[%cal Rg5e6]} Nc6 {White must now prevent ...Nd4.} 18. Qxe6+ Kh8 19. Qxf5 Rxf5 20. Ne6 Be5 21. Be3 Re8 22. Nc5 Bf4 23. Bxf4 Rxf4 24. f3 Rb4 25. Rd2 Re7 26. Kf1 a5 27. Re1 (27. Rc1 {seems wilder.} Nd4 28. Rd3 Rc7 29. Rcc3 Rc6 30. Rd2) 27... Rxe1+ $1 28. Kxe1 {[%mdl 4096] Endgame KRN-KRN} Kg8 29. b3 b6 $1 {[%cal Rb6c5]} 30. Rd6 {[#] Strongly threatening Na6.} Ne7 31. Nd7 Rxb3 32. Rxb6 Ra3 33. Nc5 Ra2 34. Re6 Nd5 35. Re2 Ra1+ 36. Kf2 Nc3 37. Re8+ Kf7 38. Ra8 Ra2+ 39. Kg3 g5 40. Kg4 (40. Kh3 $16) 40... Rxg2+ $11 41. Kf5 {Threatens to win with Ra7+.} Rxh2 42. Ra7+ {White is slightly better.} Ke8 43. Rxa5 Rf2 44. Kxg5 {Precision: White = 68%, Black = 62%.} (44. Ke6 $5 {[%cal Ra5a8]} Kd8 45. Ra7 $16) 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.22"]
[Round "5"]
[White "Xiong, Jeffery"]
[Black "So, Wesley"]
[Result "1/2-1/2"]
[ECO "E06"]
[WhiteElo "2665"]
[BlackElo "2786"]
[Annotator "TA"]
[PlyCount "44"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,44,16,15,17,0,4,14,14,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 a6 8. a4 Bd7 9. Qxc4 Bc6 10. Bg5 h6 {E05: Open Catalan: 5 Nf3 Be7} 11. Bxf6 Bxf6 12. Rd1 a5 13. Nc3 {[#] LiveBook: 7 Games. The position is equal.} Bd5 $146 ({Predecessor:} 13... Bxf3 14. Bxf3 c6 15. h4 Nd7 16. e3 Ra6 17. Rab1 Be7 18. Be4 {½-½ (53) Inarkiev,E (2660)-Kasimdzhanov,R (2704) Berlin 2015}) 14. Qb5 Ra6 15. Nxd5 exd5 16. Ne5 c6 $1 {[%cal Rc6b5]} 17. Qxb7 Rb6 18. Qa7 Be7 $1 19. Nd3 Ra6 $1 {[%cal Ra6a7]} 20. Qb7 Rb6 21. Qa7 Ra6 $1 {[%cal Ra6a7]} 22. Qb7 Rb6 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.22"]
[Round "5"]
[White "Izoria, Zviad"]
[Black "Akobian, Varuzhan"]
[Result "1/2-1/2"]
[ECO "A29"]
[WhiteElo "2599"]
[BlackElo "2647"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,104,12,0,8,7,16,0,0,3,56,41,62,43,41,23,28,28,39,44,40,42,50,41,36,43,77,31,38,17,23,20,31,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,-8,-8,-8,0,0,-7,-7,0,-7,0,-7,-21,-21,0,-21,0]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O d6 7. Nd5 Bc5 8. e3 Bg4 9. h3 {A29: English Opening: Four Knights Variation with 4 g3} Bh5 10. d3 {LiveBook: 10 Games} Nxd5 (10... a5 11. Nc3 h6 12. b3 Re8 13. Bb2 Qd7 14. a3 Ba7 15. Kh2 Nd8 16. Ne2 Bxf3 17. Bxf3 {½-½ (123) Inarkiev,E (2693)-Efimenko,Z (2636) Antalya 2017}) 11. cxd5 Ne7 12. g4 Bg6 13. d4 exd4 (13... Bb6 $11) 14. Nxd4 $14 Qd7 15. e4 c6 16. dxc6 bxc6 {[#]} 17. Nf5 $146 Rad8 18. Qc2 Bxf5 19. exf5 Bd4 20. Rb1 c5 21. b4 Nc6 22. bxc5 dxc5 23. Bf4 Nb4 24. Qc4 Nd5 25. Bxd5 (25. Bg5 {is more complex.} Nb6 26. Qa6 Rb8 27. Bf4 Rbc8 28. a4) 25... Qxd5 {The position is equal.} 26. Qxd5 Rxd5 27. Rb7 c4 28. Rc1 c3 29. Be3 Bxe3 30. fxe3 $11 {[%mdl 4096] Endgame KRR-KRR} Rd2 {[#] Strongly threatening ...c2.} 31. Rxc3 Rxa2 32. Rbc7 f6 33. Rc8 a5 {[%cal Ba7a5,Ba5a4,Ba4a3][%mdl 32]} (33... h6 {with more complications.} 34. Rxf8+ Kxf8 35. Rc8+ Kf7 36. Rc7+ Kg8) 34. Rxf8+ Kxf8 {KR-KR} 35. Rc7 a4 36. Ra7 a3 37. h4 h6 38. g5 hxg5 39. hxg5 fxg5 40. e4 Re2 {[#] aiming for ...a2.} 41. Rxa3 Rxe4 42. Kg2 Kf7 43. Ra6 $1 Re5 44. Kg3 Rxf5 45. Kg4 Re5 46. Rb6 g6 47. Ra6 Kg7 48. Ra8 Kh6 49. Rh8+ Kg7 50. Ra8 Kf6 51. Rf8+ Kg7 52. Ra8 Kf6 {Precision: White = 81%, Black = 48%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.22"]
[Round "5"]
[White "Lenderman, Aleksandr"]
[Black "Nakamura, Hikaru"]
[Result "1/2-1/2"]
[ECO "E98"]
[WhiteElo "2599"]
[BlackElo "2787"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 32,81,52,50,51,52,63,37,30,17,34,0,18,0,0,0,54,35,19,60,43,55,79,40,41,18,28,33,27,19,83,14,10,10,12,10,24,10,11,1,4,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Be3 f5 11. f3 f4 12. Bf2 g5 13. Nd3 Nf6 14. c5 Ng6 15. Rc1 Rf7 16. Kh1 {E99: King's Indian: Classical Main Line: 9 Ne1 Nd7 10 f3 f5} Bf8 (16... h5 17. cxd6 cxd6 18. Nb5 a6 19. Na3 b5 20. Rc6 g4 21. Qc2 Qf8 22. Rc1 Bd7 23. Rc7 Bh6 {0-1 (39) So,W (2779)-Nakamura,H (2814) Saint Louis 2015}) 17. Rg1 {LiveBook: 4 Games} Rg7 18. b4 {White is slightly better.} h5 19. Qd2 g4 20. g3 fxg3 21. Rxg3 a5 $1 22. a3 $146 ({Find the theoretical novelty and annotate with similar games:} 22. cxd6 cxd6 23. bxa5 Rxa5 {½-½ (93) Kozlov,V (2405)-Ruiz Jarabo Pelayo,F (2290) ICCF email 2015}) 22... axb4 23. axb4 c6 (23... Be7 $11) 24. dxc6 bxc6 25. cxd6 Qxd6 26. Bc5 Qd8 27. Bxf8 Qxf8 28. fxg4 Bxg4 29. h3 Bxe2 30. Qxe2 {[#] Threatens to win with Rcg1.} Raa7 (30... h4 $11 31. Rg5 Qd6) 31. Rf1 (31. Qe3 $16 {aiming for Rcg1.} Ra3 32. Nb1 Rxd3 33. Qxd3) 31... Nf4 $11 32. Rxg7+ Rxg7 33. Nxf4 exf4 34. Qc4+ Qf7 {The position is equal.} 35. Qxf7+ Kxf7 36. Rxf4 {KRN-KRN} Rg3 37. Kh2 Rxc3 38. e5 Ke6 39. exf6 {[#] f7 is the strong threat.} Kf7 40. h4 c5 41. bxc5 {Precision: White = 51%, Black = 70%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.22"]
[Round "5"]
[White "Liang, Awonder"]
[Black "Zherebukh, Yaroslav"]
[Result "1/2-1/2"]
[ECO "C48"]
[WhiteElo "2552"]
[BlackElo "2640"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,60,62,80,66,73,65,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nf6 3. Nc3 Nc6 4. Bb5 Nd4 5. Bc4 Bc5 6. Nxe5 Qe7 {C48: Four Knights: 4 Bb5, replies other than 4...Bb4} 7. Nf3 d5 8. Bxd5 Bg4 9. d3 O-O-O 10. Be3 Nxd5 11. Nxd5 {LiveBook: 9 Games} Rxd5 12. exd5 Re8 {[#] Strongly threatening ...Qf6.} 13. c3 (13. O-O $14 Bxf3 14. gxf3) 13... Nxf3+ $11 {The position is equal.} 14. gxf3 {[#]} Qh4 $146 15. Kd2 {[%cal Be1d2,Bd2c1,Bc1b1,Bb1a2][%mdl 32]} (15. fxg4 $2 Rxe3+ 16. Kd2 Qxf2+ 17. Kc1 Re2 $19) 15... Rxe3 $1 16. fxe3 Qf2+ 17. Kc1 Bxe3+ 18. Kb1 Bxf3 19. Qe1 ({Avoid the trap} 19. Qa4 $2 Kd8 $19) 19... Bxh1 20. Qxh1 {[%mdl 4096] [#] Endgame Black must now prevent Qe4. KQR-KQB} Qe2 $1 {[%cal Re2d3]} 21. a4 {Hoping for Qe4.} Qxd3+ 22. Ka2 Qc4+ 23. Kb1 $1 Qd3+ 24. Ka2 Qc4+ 25. Kb1 $1 Qd3+ 26. Ka2 Qc4+ 27. Kb1 $1 Qd3+ 28. Ka2 Qc4+ 29. Kb1 $1 Qd3+ 30. Ka2 Qc4+ 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.23"]
[Round "6"]
[White "Nakamura, Hikaru"]
[Black "Xiong, Jeffery"]
[Result "1/2-1/2"]
[ECO "C26"]
[WhiteElo "2787"]
[BlackElo "2665"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,61,13,0,0,0,17,17,19,22,14,2,26,22,146,11,0,0,0,0,0,0,30,22,22,26,21,20,37,41,40,40,41,41,41,30,41,41,48,43]} 1. e4 e5 2. Nc3 Nf6 3. g3 d5 4. exd5 Nxd5 5. Bg2 Nxc3 6. bxc3 Bc5 7. Nf3 Nc6 8. O-O O-O 9. Re1 Qf6 10. d3 h6 11. Rb1 {C47: Scotch Four Knights and Four Knights with 4 g3} (11. Be3 Bb6 12. Nd2 Be6 13. a4 Rad8 14. Qh5 Bd5 15. Ne4 Qe6 16. Bh3 f5 17. Nd2 Qe8 18. Qxe8 Rdxe8 {½-½ (31) Amonatov,F (2620)-Tomashevsky,E (2716) Doha 2016}) 11... Bb6 12. Be3 Bg4 13. h3 {[#] LiveBook: 4 Games. The position is equal.} Be6 $146 ({Predecessor:} 13... Bh5 14. g4 Bg6 15. Nd2 Rad8 16. Qe2 Rfe8 17. Ne4 Qe7 18. a4 Rb8 {½-½ (64) Biliskov,V (2332)-Kuljasevic,D (2561) Zadar 2012}) 14. c4 {[%cal Bc3c4,Bc4c5][%mdl 32]} e4 15. Nd2 exd3 16. c5 Ba5 {...dxc2 is the strong threat.} 17. Rxb7 Nb4 18. cxd3 Bd5 (18... Nxd3 $11 {remains equal.} 19. Re2 Rad8) 19. Rxb4 (19. Nc4 $16 {Threatens to win with Bxd5.} Bxb7 20. Bxb7 Nxd3 21. Nxa5 Nxe1 22. Bxa8 (22. Qxe1 Rab8 $11) 22... Rxa8 23. Qxe1) 19... Bxg2 $11 20. Rf4 Qc6 21. Qa4 Bxd2 22. Bxd2 Rfe8 (22... Rfd8 {feels hotter.} 23. Re7 Rxd3 24. Rfxf7 Qxa4 25. Rxg7+ Kf8) 23. Rxe8+ (23. Re3 {keeps more tension.} f6 24. Qxc6 Bxc6 25. Kf1 Rab8 26. Rb4) 23... Rxe8 24. Qxc6 Bxc6 {[%mdl 4096] Endgame KRB-KRB} 25. Kf1 Rb8 26. Rb4 Rxb4 27. Bxb4 Bd7 28. h4 f6 29. d4 Be6 30. a3 g5 31. Ke1 {Precision: White = 56%, Black = 31%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.23"]
[Round "6"]
[White "So, Wesley"]
[Black "Izoria, Zviad"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2786"]
[BlackElo "2599"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,60,27,27,21,30,39,46,54,0,27,20,12,18,35,34,45,-6,-11,-5,8,0,0,0,0,-9,-4,-8,-12,-9,-12,-10,0,-10,-10,-11,-10,-10,-7,-12,-11,-13,-10,-12,-8,-11,0,0,0,-4,-4]} 1. Nf3 d5 2. d4 e6 3. c4 a6 4. Nbd2 (4. Nc3 Nf6 5. cxd5 exd5 6. Bf4 Bd6 7. Bg3 O-O 8. e3 Nc6 9. Bd3 Bg4 10. a3 Bxg3 11. hxg3 g6 12. Qc2 Qd6 13. O-O-O b5 {1-0 (54) Bu,X (2730)-Bosiocic,M (2624) Riadh 2017}) 4... Nf6 5. g3 c5 6. Bg2 {D30: Queen's Gambit Declined: Systems without Nc3} Nc6 7. O-O {LiveBook: 5 Games} cxd4 8. cxd5 Qxd5 $146 ({Predecessor:} 8... exd5 9. Nb3 Be7 10. Nfxd4 O-O 11. Bf4 Nh5 12. Nxc6 bxc6 {0-1 (43) Kopylov,M (2450)-Teske,H (2500) Germany 2014}) 9. Nb3 {[%cal Rf3d4] [#]} d3 $1 {[%mdl 512]} 10. e4 (10. exd3 $14 Qd8 11. d4) (10. Qxd3 Qxd3) 10... Qb5 ({Of course not} 10... Nxe4 $6 11. Ng5 $1 $16 {[%mdl 512]}) 11. Nbd4 Nxd4 12. Nxd4 Qd7 13. Be3 Bc5 {[#]} 14. Nf5 (14. Nxe6 $1 $14 {[%mdl 512]} Bxe3 (14... Qxe6 15. Bxc5) 15. Nxg7+ Kf8 16. e5 Bxf2+ 17. Kh1 (17. Rxf2 Ng4 $18)) 14... exf5 $11 {The position is equal.} 15. Bxc5 Nxe4 16. Re1 Qd5 $1 {[%cal Rd5c5]} 17. Qa4+ b5 $1 {[%cal Rb5a4]} 18. Bxe4 fxe4 19. Qxe4+ Qxe4 20. Rxe4+ Be6 21. Rd4 Rd8 22. Bd6 f6 23. Rxd3 Kf7 24. Rd2 Rd7 {aiming for ...Rhd8.} 25. Bb4 Rxd2 26. Bxd2 Rd8 27. Bc3 Bg4 28. Re1 Rd1 29. Rxd1 Bxd1 30. f4 Ke6 {Precision: White = 71%, Black = 61%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.23"]
[Round "6"]
[White "Onischuk, Alexander"]
[Black "Liang, Awonder"]
[Result "1/2-1/2"]
[ECO "D41"]
[WhiteElo "2672"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,68,12,0,0,10,5,0,59,20,51,0,0,0,0,0,0,0,14,0,0,0,-8,0,0,0,-1,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 cxd4 8. cxd4 Bb4+ 9. Bd2 Bxd2+ 10. Qxd2 O-O 11. Bb5 a6 12. Be2 (12. Bd3 {keeps more tension.} Nc6 13. Qc3 Qd6 14. e5 Qb4 15. Qxb4 Nxb4 16. Be4) 12... b6 $146 {D41: Queen's Gambit Declined: Semi-Tarrasch with 5 cxd5} ({Predecessor:} 12... b5 13. O-O Bb7 14. Qe3 Nc6 15. Rfb1 Qe7 16. a4 Nb4 17. Bd1 bxa4 18. Rxa4 a5 19. Rba1 Qc7 20. Nd2 {½-½ (57) Nanu,C (2509)-Istratescu,A (2593) Eforie Nord 2017}) 13. O-O Bb7 14. Qe3 Nd7 (14... Nc6 $11) 15. Rfd1 h6 16. Ne5 ({White should play} 16. Nd2 $14) 16... b5 $11 {The position is equal.} 17. Rac1 Nxe5 18. dxe5 Qh4 19. f3 {Black must now prevent Rc7.} Rac8 20. g3 Qe7 21. Rd6 Rxc1+ 22. Qxc1 Rc8 23. Qd2 Qc7 24. Kf2 Qc5+ 25. Qd4 {Qxc5 is the strong threat.} Qc1 26. Rd8+ Kh7 {[#] aiming for ...Rc2.} 27. Rxc8 Bxc8 28. h4 Qc2 29. Qa7 b4 30. Qxf7 Qc5+ 31. Kg2 Qc2 32. Kf2 Qc5+ 33. Kg2 Qc2 34. Kf2 Qc5+ {Precision: White = 45%, Black = 74%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.23"]
[Round "6"]
[White "Robson, Ray"]
[Black "Caruana, Fabiano"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "2660"]
[BlackElo "2804"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,78,0,0,0,37,43,32,41,36,37,43,16,33,0,0,-13,28,0,59,11,8,16,31,7,7,11,15,-4,-7,-25,0,0,83,85,106,-86,-90,-173,-163,-226,-226,-208,-213,-850,-850,-804,-793,-704,-734,-865,-854,-1514,-1514,-1237,-1202,-6270,-6270]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nxc3 6. dxc3 Be7 7. Be3 O-O 8. Qd2 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves} Nd7 9. O-O-O c6 10. Kb1 d5 11. c4 Nb6 12. cxd5 Nxd5 {LiveBook: 5 Games} 13. Bc4 {[%cal Rc4d5] [#]} Bf5 $146 ({Predecessor:} 13... Be6 14. Rhe1 Bb4 15. c3 Be7 {½-½ (26) Vachier Lagrave,M (2744)-Giri,A (2793) Baku 2015}) 14. Bxd5 cxd5 15. Qxd5 Qc8 16. Nd4 Bg6 17. Ka1 Re8 18. Rhe1 Bf6 19. c3 Re5 (19... Be4 $5 {[%cal Re4d5]} 20. Qb3 Bxg2 $11) 20. Qb3 a6 (20... a5 $11 21. a4 Be4) 21. Bf4 Rxe1 22. Rxe1 Qd7 23. Be5 {Threatening Bxf6.} Re8 24. f4 Bd8 25. a4 h6 26. Rd1 Qg4 27. Rd2 b5 (27... Qc8 $11 {keeps the balance.}) 28. axb5 $16 axb5 29. Qd1 $2 {[#]} ({Much weaker is} 29. Nxb5 $6 Bb6 $11) (29. Qxb5 $16 {is forced if you want to stay better.} f6 30. Bd6) 29... Qd7 $1 $17 {[%cal Rd7a7] ( -> ...Qa7+)} 30. f5 (30. Nc2 $17 {keeps fighting.} Qa7+ 31. Na3) 30... Bg5 $40 {[%mdl 128] Black is out for blood.} 31. Rd3 (31. fxg6 $142 Bxd2 32. Bg3) 31... Bxf5 ({Weaker is} 31... Rxe5 32. fxg6 fxg6 33. Nf3 $14) 32. Nxf5 Qxf5 33. Bg3 $2 (33. Bc7) 33... Ra8+ {Black is clearly winning.} 34. Kb1 Rd8 35. Kc2 {[#]} b4 $1 {[%mdl 512]} 36. cxb4 Rc8+ 37. Kb3 Qe6+ 38. Rd5 Rd8 39. Kc4 Qc6+ {Precision: White = 26%, Black = 68%.} 0-1

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.23"]
[Round "6"]
[White "Akobian, Varuzhan"]
[Black "Shankland, Samuel"]
[Result "0-1"]
[ECO "E36"]
[WhiteElo "2647"]
[BlackElo "2671"]
[Annotator "TA"]
[PlyCount "118"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,118,11,27,10,21,-33,-22,-28,-20,-16,-12,-29,-26,-26,-1,-8,0,-14,11,14,105,29,18,27,20,27,47,0,25,39,75,74,70,0,0,0,0,-58,-64,-71,-79,-170,-162,-161,-163,-166,-168,-172,-168,-244,-244,-236,-217,-223,-220,-256,-253,-258,-256,-241,-232,-283,-267,-270,-267,-308,-306,-277,-287,-369,-368,-349,-350,-1038,-900,-758,-721,-845,-2154,-1660,-605,-12837,-12837,-12838,-12838,-12839,-12839,-12839,-12839,-12840,-12841,-12845,-12837,-12837,-12838,-12845,-6996,-12846,-12847,-12847,-12847]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 dxc4 7. Qxc4 b6 {E36: Nimzo-Indian: Classical: 4...d5 5 a3} 8. Nf3 Ba6 9. Qa4+ Qd7 10. Qc2 h6 {LiveBook: 3 Games} (10... Qc6 11. Qxc6+ Nxc6 12. Bf4 O-O-O 13. Rc1 Kb7 14. g3 Rhe8 15. Bg2 {0-1 (42) Akobian,V (2647)-Anand,V (2782) Riadh 2017}) 11. g3 Bb7 12. Bg2 (12. Ne5 $11 Qc8 13. f3) 12... Be4 $1 $15 {[%cal Re4c2]} 13. Qd1 $146 ({Predecessor:} 13. Qc4 Nc6 14. O-O Na5 15. Qc3 {½-½ (58) Salgado Lopez,I (2618)-Wagner,D (2571) Drancy 2016}) 13... Nc6 14. O-O Rd8 15. Be3 O-O 16. Rc1 Qd5 17. Qa4 Ng4 18. Rc3 Nxe3 19. fxe3 Qd6 (19... e5 $11) 20. Nh4 (20. Rfc1 $16 {[%cal Rc3c6]} Ne7 21. Rxc7) 20... Bxg2 $11 21. Nxg2 Ne7 22. Qxa7 Nd5 23. Rc2 Ra8 24. Qb7 c5 25. dxc5 bxc5 {[#]} 26. Qb5 (26. Rxf7 $1 $14 {[%mdl 512]} Rxf7 27. Qxa8+ Rf8 28. Qa5) 26... Rfb8 27. Qd3 Qe5 28. Rxc5 (28. e4 $11 Nf6 29. Ne3) 28... Qxb2 $15 (28... Rxb2 $2 29. e4 $18) 29. Rfc1 Rd8 {Hoping for ...Nf4!} 30. Qe4 (30. R5c2 $17 Qxa3 31. Qxa3 Rxa3 32. Rc8) 30... Qxe2 $19 ({Don't take} 30... Rxa3 31. Rc8 $17) (30... Qxa3 31. R5c2 $17) 31. R5c2 Qb5 32. Nf4 Nf6 ({Don't play} 32... Rxa3 33. Rc8 $17) 33. Qb4 Qe5 34. Qc5 (34. Qb3 {keeps fighting.}) 34... Qxc5 35. Rxc5 g5 36. Ne2 Rxa3 37. Rc8 Rxc8 38. Rxc8+ {[%mdl 4096] Endgame KRN-KRN} Kg7 39. Rc3 Ra1+ 40. Kg2 Ra2 41. Kf1 Ne4 42. Rd3 g4 43. Rd4 f5 44. Rd3 Kf6 45. Rd8 Ng5 46. Rh8 $2 (46. Kf2) 46... Ra1+ {Black is clearly winning.} 47. Kg2 Nh3 48. Rb8 Re1 49. Rb2 Ke5 (49... h5 $142 50. Ra2 Ke5) 50. Ra2 Ke4 51. Ra4+ Kxe3 52. Ra3+ Ke4 ({Weaker is} 52... Kxe2 53. Re3+ Kd1 54. Rd3+ Kc2 55. Rc3+ Kd2 56. Rd3+ Kc2 57. Rc3+ Kd2 58. Rd3+ Kc2 $11) 53. Ra2 Ke5 54. Rb2 Kf6 55. Ra2 e5 56. Ra6+ Kg5 57. Ra2 Kh5 58. Rb2 f4 59. gxf4 {[#]} Rxe2+ $1 {[%mdl 512] Precision: White = 36%, Black = 73%.} 0-1

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.23"]
[Round "6"]
[White "Zherebukh, Yaroslav"]
[Black "Lenderman, Aleksandr"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2640"]
[BlackElo "2599"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 34,60,14,17,41,45,40,57,52,4,6,6,11,6,6,4,4,4,7,6,16,12,16,9,27,5,56,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e3 a6 6. a4 c5 7. Bxc4 Be7 8. O-O Nc6 9. Qe2 cxd4 10. Rd1 e5 11. exd4 exd4 12. Nxd4 Nxd4 13. Qe5 Qd6 14. Qxd6 Bxd6 15. Rxd4 Be5 16. Rh4 {D27: Queen's Gambit Accepted: Classical main line: 7 e4!? and 7 a4} O-O 17. Bf4 Bxf4 18. Rxf4 {[#] LiveBook: 3 Games} Re8 $146 ({Predecessor:} 18... Bd7 19. Nd5 Nxd5 20. Bxd5 Rab8 21. Rc1 Be6 22. Bxe6 fxe6 23. Rxf8+ Rxf8 24. g3 Rd8 25. Rc7 Rd4 26. Rxb7 Rxa4 27. Re7 Re4 28. Ra7 Ra4 29. Kg2 a5 30. b4 {½-½ (30) Kunin,V (2541)-Donchenko,A (2569) Zuerich 2017}) 19. Nd5 Nxd5 $1 20. Bxd5 Re7 21. Re4 Be6 22. Rae1 {[%cal Rd5e6]} Rd8 23. Bxe6 Rxe6 24. Kf1 Rxe4 25. Rxe4 $11 {[%mdl 4096] Endgame KR-KR} Kf8 26. Rb4 Rd7 27. Ke2 Ke7 28. h4 h5 29. g3 g6 ({Better is} 29... Kd6 $11) 30. Re4+ (30. Ke3 $14) 30... Kf6 {Precision: White = 53%, Black = 41%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.25"]
[Round "7"]
[White "Caruana, Fabiano"]
[Black "Akobian, Varuzhan"]
[Result "1-0"]
[ECO "C11"]
[WhiteElo "2804"]
[BlackElo "2647"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,59,10,2,21,6,41,39,49,46,56,66,62,39,31,27,32,50,156,144,151,115,228,226,219,227,227,225,214,222,215,210,222,216,216,208,215,181,179,199,756,762,5497,5493,2403,2197,29997,29998]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Be7 7. Be3 Nc6 8. Qd2 b6 {C11: French: Classical System: 4 e5 and 4 Bg5 dxe4} (8... a6 9. a3 b5 10. Bd3 Bb7 11. O-O O-O 12. Kh1 f5 13. Qf2 Rc8 14. Rg1 b4 15. axb4 Nxb4 16. g4 g6 17. gxf5 Nxd3 18. cxd3 Rxf5 {0-1 (40) Kasparov,G (2812)-Caruana,F (2807) Saint Louis 2017}) 9. Bb5 Qc7 10. O-O-O $146 ({Predecessor:} 10. h4 a6 11. Bxc6 Qxc6 12. h5 c4 13. g4 b5 14. f5 {1-0 (34) Ponkratov,P (2605)-Volkov,S (2612) Moscow 2018}) 10... a6 {White is slightly better.} 11. Bxc6 $1 Qxc6 12. f5 c4 13. f6 (13. Bg5 {is more complex.} Bb4 14. g4 h6 15. Bh4 a5 16. a3) 13... gxf6 14. exf6 Bxf6 15. Rhf1 b5 {[#]} (15... Be7 $14) 16. Qf2 $1 $16 b4 17. Ne2 {Strongly threatening Ne5!} b3 {[#]} (17... Qc7 $16) 18. Ne5 $1 $18 {[%cal Re5c6][%mdl 512]} Bxe5 (18... Nxe5 19. Qxf6) 19. Qxf7+ Kd8 20. dxe5 bxa2 21. Kd2 {And now Nd4 would win.} Rf8 22. Qxh7 Rxf1 23. Rxf1 {Black must now prevent Nd4.} d4 24. Qg8+ ({Weaker is} 24. Nxd4 c3+ 25. bxc3 Qxg2+ 26. Rf2 Qd5 $11) 24... Kc7 25. Nxd4 ({Less strong is} 25. Bxd4 Bb7 $14) 25... Qd5 26. Qxe6 Qa5+ $2 (26... Bb7) 27. c3 {Nc6 is the strong threat.} Nxe5 {[#]} 28. Rf7+ $1 {[%mdl 512]} Nxf7 29. Bf4+ Kb7 30. Qxf7+ {Precision: White = 90%, Black = 29%.} 1-0

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.25"]
[Round "7"]
[White "Shankland, Samuel"]
[Black "So, Wesley"]
[Result "1/2-1/2"]
[ECO "D85"]
[WhiteElo "2671"]
[BlackElo "2786"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,100,1,3,-3,-3,-3,-3,-3,-3,-5,0,0,0,0,0,0,0,-37,0,-37,-37,-37,-37,-35,-29,-57,-60,-57,-63,-68,-68,-68,-39,-39,-32,-32,-32,-32,-32,-32,-32,-32,-3,-20,-3,-3,-3,-5,-5,-12,-3,-3,-3,-17,-17,-17,-17,-17,-17,-17,-17,-17,-17,-17,-17,-17,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. g3 Bg7 6. Bg2 Nxc3 7. bxc3 c5 8. Nf3 Nc6 9. O-O O-O 10. Rb1 cxd4 11. Nxd4 Nxd4 12. cxd4 Qxd4 13. Be3 {D75: Fianchetto Grünfeld: Main Line with 7...c5} (13. Bf4 Be6 14. Rxb7 Bxa2 15. Rd7 Qxd1 16. Rfxd1 Rae8 17. Rxa7 Bc4 18. Rc1 Bxe2 19. Bc6 Rd8 20. Rxe7 Bg4 21. Kg2 Bf6 {½-½ (21) Li,C (2748)-Leko,P (2714) Szeged 2015}) 13... Qc4 14. Qd2 Be6 {LiveBook: 4 Games} 15. Rfc1 Rad8 $146 16. Qxd8 $1 Rxd8 17. Rxc4 Bxc4 18. Bxa7 b5 19. Bc6 Bxa2 20. Rxb5 Bc4 21. Rb7 Bf6 22. Bf3 Rd1+ 23. Kg2 Re1 24. Be3 {[#] Threatens to win with Bh6.} Bxe2 25. Bxe2 Rxe2 $15 {[%mdl 4096] Endgame KRB-KRB} 26. Bh6 {[%cal Rb7b8]} Rb2 27. Rd7 {[%cal Rd7d8]} Rb8 28. h4 Re8 29. Bg5 Bxg5 30. hxg5 {KR-KR} Kf8 31. f4 Rc8 32. Ra7 Rc6 33. Ra8+ Kg7 34. Ra7 Re6 35. Kf3 {The position is equal.} Re1 36. Kf2 Re4 37. Kf3 Re6 38. g4 {[%cal Bg3g4,Bg4g5][%mdl 32]} f6 39. gxf6+ Kxf6 40. g5+ Kf7 41. Ra1 Rd6 42. Rh1 Kg7 43. Re1 Rd3+ 44. Kg4 Rd7 45. Re2 Kf8 46. Rh2 e6 47. Re2 Ke7 48. Rh2 Kd6 49. Rd2+ Ke7 50. Rh2 Kd6 {Precision: White = 76%, Black = 63%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.25"]
[Round "7"]
[White "Xiong, Jeffery"]
[Black "Zherebukh, Yaroslav"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2665"]
[BlackElo "2640"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,91,0,21,0,0,0,0,0,31,26,31,29,41,40,31,39,31,23,29,20,20,12,27,0,33,28,30,8,8,8,8,8,8,8,97,100,86,26,63,27,28,32,25,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 {[%cal Bg8f6,Bf6d5,Bd5b4][%mdl 32]} 4. g3 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 {E04: Open Catalan: 5 Nf3} Ndxb4 9. Nc3 Bd7 10. O-O a5 {LiveBook: 38 Games} 11. Nb5 $146 ({Predecessor:} 11. Qd1 O-O 12. e3 a4 13. Nxa4 Nxd4 14. Qxd4 Bxa4 15. Qxc4 Qe7 {½-½ (30) Matlakov,M (2718)-So,W (2792) Wijk aan Zee 2018}) 11... Ra6 {[#] ...Na7 is the strong threat.} 12. Qd1 Ne7 13. a4 O-O 14. Ne5 Bc6 15. Nxc6 Nexc6 16. Rc1 Qe7 17. Rxc4 Raa8 18. Qc1 Rfd8 19. Rd1 Rd7 20. e3 Rad8 21. h4 h5 22. Rc5 g6 23. Qc4 e5 $1 24. Bxc6 bxc6 25. Nc3 exd4 26. exd4 Ra8 (26... Nc2 $1 $11 {keeps the balance.} 27. Ne2 (27. Rxa5 Rxd4 28. Rxd4 Rxd4 $11) (27. Rxc6 Nxd4 28. Rxg6+ Kf8 $11) 27... Nxd4 28. Nxd4 (28. Rxd4 Rxd4 29. Nxd4 Qe4 $11) 28... Qe4) 27. Re5 $16 Qd8 28. Ne2 ({Better is} 28. Rd2 $16) 28... Kg7 29. Nf4 Nd5 30. Nxd5 ({Don't play} 30. Qxc6 Nxf4 31. gxf4 Rd6 $15) 30... Rxd5 31. Rc1 Rxd4 {The position is equal.} 32. Qxc6 Qf6 33. Qxf6+ Kxf6 $11 {[%mdl 4096] Endgame KRR-KRR} 34. Re3 Rxa4 35. Rf3+ Kg7 36. Rxc7 Rf8 37. Rb7 Rd4 38. b3 Re4 39. Kg2 Rd4 40. Re3 Rd5 41. Rf3 Re5 42. Rf4 Rd5 43. Kf1 Re5 44. Kg1 Rd5 45. Kg2 Rc5 46. Kg1 {Precision: White = 67%, Black = 71%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.25"]
[Round "7"]
[White "Izoria, Zviad"]
[Black "Nakamura, Hikaru"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2599"]
[BlackElo "2787"]
[Annotator "TA"]
[PlyCount "184"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,184,43,34,95,92,103,57,93,108,104,111,109,92,131,45,115,91,89,90,79,85,90,83,81,90,81,82,94,68,84,54,80,29,27,64,66,53,94,74,102,103,161,139,150,108,103,106,109,106,125,118,117,118,170,155,134,0,168,168,215,213,215,0,135,124,132,68,158,143,130,72,89,67,85,47,49,51,72,75,75,63,81,64,63,63,68,66,66,68,68,63,65,65,93,87,102,102,102,46,46,45,46,8,115,47,72,72,72,72,72,72,72,72,89,76,70,0,43,43,47,54,59,15,15,12,31,31,31,31,60,60,87,87,162,169,193,146,412,398,367,270,220,202,621,6735,5202,5403,5302,5043,3762,3258,5203,1464,29950,11890,29960,5594,29937,29938,12837,5440,599,12847,29968,29968,29970,29963,29965,29964,29966,29967,29967,29963,29973]} 1. Nf3 g6 2. e4 {[%cal Be2e4,Be4e5][%mdl 32]} Bg7 3. d4 d6 4. Bc4 Nf6 5. Qe2 O-O 6. O-O Nc6 7. e5 {LiveBook: 9 Games. B06: Modern Defence} (7. Rd1 d5 8. exd5 Nxd5 9. h3 Re8 10. Bb3 Na5 11. Ba4 c6 12. c3 Bf5 13. Na3 b5 14. Bc2 Bxc2 15. Nxc2 {1-0 (40) Grischuk,A (2750)-Vachier Lagrave,M (2795) chess.com INT 2017}) 7... Ng4 (7... Ne8 $14) 8. h3 $16 Nh6 9. Nc3 {White is better.} Kh8 $146 ({Predecessor:} 9... Nf5 10. Rd1 dxe5 11. dxe5 Ncd4 12. Nxd4 Nxd4 13. Qe4 c5 {0-1 (31) De la Villa Garcia,J (2452)-Narciso Dublan,M (2467) Barcelona 2006}) 10. Rd1 a6 11. a3 b5 12. Bd5 Bb7 13. Bf4 (13. Qe4 $16 Qe8 14. Bxc6 Bxc6 15. d5) 13... Qc8 (13... e6 $1 $14) 14. Be4 Rb8 15. Re1 dxe5 16. dxe5 Nd8 17. Rad1 Ne6 18. Bc1 Ng8 19. Bxb7 Rxb7 20. Qe4 c5 21. Nd5 c4 22. Ng5 (22. Qh4 $16) 22... Nxg5 $11 23. Bxg5 Qf5 24. Nc3 Rfb8 25. Bc1 a5 26. g4 Qc8 (26... Qxe4 $16 {is a better defense.} 27. Nxe4 b4) 27. Qf3 $1 $18 e6 28. Bf4 Ne7 29. Ne4 Rc7 30. Bg3 Qf8 31. Nf6 Rbc8 32. Rd6 g5 (32... Ra7 $16) 33. Nd7 Qe8 34. Nf6 Qf8 35. Red1 h6 36. Nd7 Qe8 37. Nf6 $2 (37. h4 $18) 37... Bxf6 (37... Qf8 $1 $11) 38. exf6 $16 Ng6 39. Qe4 (39. Ra6 $16) 39... c3 (39... Rc6 $14) 40. b3 a4 41. bxa4 (41. b4 $142 $1) 41... bxa4 42. Ra6 e5 43. Qxa4 (43. Rdd6 {looks sharper.} Rc4 44. Qd3 e4 45. Qe3 Ne5 46. Bxe5 Qxe5 47. Rd7) 43... Qxa4 44. Rxa4 Rc6 45. Ra5 Re8 46. Rdd5 Rxf6 47. Rxe5 Nxe5 48. Bxe5 Rxe5 49. Rxe5 $14 {[%mdl 4096] Endgame KR-KR} Ra6 $1 50. Rc5 Rxa3 51. Kf1 Kg7 52. Ke2 Kf6 53. Kd3 Ra6 54. Rxc3 ({But not} 54. Kxc3 $6 Ra3+ 55. Kd4 Rxh3 $11) 54... Ke6 55. Ke4 (55. Kd4 $16) 55... Ra4+ 56. Ke3 f6 57. f3 Ra1 {[#]} (57... h5 $11 {keeps the balance.}) 58. f4 ({White should play} 58. Kd4 $1 $16) 58... gxf4+ 59. Kxf4 Ra4+ 60. Kg3 Kf7 61. Rc5 Ra3+ 62. c3 Ra1 63. Kf4 Rh1 64. Kg3 ({Better is} 64. Kf5 $14) 64... Rg1+ 65. Kf2 Rh1 66. Kg2 Rc1 67. h4 Ke6 68. h5 Kd6 69. Rf5 Ke6 70. Rf3 Ke5 71. Kf2 Rc2+ 72. Kg3 Ke6 (72... Rb2 $16) 73. Kf4 $18 Kf7 74. Ke4 Rd2 $2 {[%mdl 8192]} (74... Ke6 $16 75. Re3 Rf2) 75. c4 {[%cal Bc3c4,Bc4c5,Bc5c6][%mdl 32]} Ke6 76. Rc3 Rg2 77. Kf3 Rg1 $2 (77... Ra2 78. c5 Kd7) 78. c5 Kd7 79. c6+ Kc7 80. Kf4 Rf1+ 81. Ke4 Rf2 82. Rf3 Re2+ 83. Kf5 Re5+ 84. Kxf6 (84. Kg6 $142 Kd8 85. Rxf6 Rg5+ 86. Kxh6 Rxg4 87. Kh7 Kc7 88. h6 Kb6 89. Rg6) 84... Rg5 85. Kf7 Rxg4 86. Rf6 Rg5 87. Rxh6 Rc5 88. Rh8 {White mates.} Rxc6 89. Kg7 Rc1 90. h6 Rg1+ 91. Kh7 Kd7 {[#]} 92. Rg8 $1 Re1 {Precision: White = 63%, Black = 46%.} 1-0

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.25"]
[Round "7"]
[White "Lenderman, Aleksandr"]
[Black "Onischuk, Alexander"]
[Result "1-0"]
[ECO "A28"]
[WhiteElo "2599"]
[BlackElo "2672"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,85,-2,-8,0,-8,0,0,7,0,1,-19,-16,-43,-38,-47,-40,-39,0,-13,-7,-12,5,9,14,-4,28,28,31,34,27,18,39,16,10,6,14,6,25,15,14,14,16,0,15,22,30,41,18,31,89,61,143,143,159,144,145,147,212,193,206,206,210,228,289,286,291,288,279,283,420,413,542,512]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e4 Bb4 5. d3 d6 6. h3 {A28: English Opening: Four Knights Variation} (6. a3 Bxc3+ 7. bxc3 Ne7 8. g3 Ng6 9. h4 Bg4 10. Be2 Qd7 11. Rb1 b6 12. Bg5 h5 13. Bxf6 gxf6 {½-½ (37) Cornette,M (2611)-Liang,A (2572) chess.com INT 2018}) 6... O-O 7. g3 Nd4 8. Bg2 {LiveBook: 3 Games. The position is equal.} Nxf3+ 9. Qxf3 c6 10. O-O a6 11. Be3 $146 ({Predecessor:} 11. Ne2 Bc5 12. Rb1 a5 13. Be3 Be6 14. Bxc5 dxc5 15. Qe3 Nd7 {½-½ (29) Savenko,A (2255)-Averkin,O (2425) Krasnodar 1997}) 11... b5 12. cxb5 axb5 13. a3 Bxc3 14. bxc3 Ra4 15. Rfb1 Re8 16. Rb4 Qa5 17. Rxa4 Qxa4 18. Qd1 Be6 19. c4 Qxd1+ 20. Rxd1 Ra8 21. cxb5 cxb5 22. d4 h6 23. dxe5 dxe5 24. Bc5 Rc8 25. Bb4 Bb3 26. Rd2 Rc1+ 27. Kh2 Kh7 28. f3 Bc4 29. h4 Be6 30. Bh3 Bxh3 31. Kxh3 $14 {[%mdl 4096] Endgame KRB-KRN} Rc7 (31... Nh5 $1 $14) 32. Rd8 Rb7 ({Black should play} 32... g5 $1 $14) 33. g4 $1 $16 Rb6 34. Kg3 Rb7 35. Kf2 Kg6 (35... Nd7 $16 {might work better.} 36. Re8 g5) 36. h5+ $18 Kh7 {[#]} 37. Ke2 $1 g6 38. Rd6 Kg7 {[#]} 39. hxg6 $1 fxg6 40. Re6 Kf7 41. Rxe5 h5 (41... Ne8 $142 42. f4 Nf6) 42. g5 Ne8 43. f4 {Precision: White = 67%, Black = 41%.} 1-0

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.25"]
[Round "7"]
[White "Liang, Awonder"]
[Black "Robson, Ray"]
[Result "1/2-1/2"]
[ECO "C65"]
[WhiteElo "2552"]
[BlackElo "2660"]
[Annotator "TA"]
[PlyCount "143"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,143,29,23,37,29,51,58,64,142,33,91,38,52,38,58,44,76,20,28,29,79,41,41,32,67,67,65,67,54,47,48,65,66,36,152,85,93,52,107,76,130,119,160,140,154,151,151,151,147,155,142,136,142,117,118,112,118,0,125,125,150,120,112,109,115,61,52,56,54,41,38,32,64,60,72,64,100,93,93,97,93,90,87,87,87,87,96,-62,72,72,139,110,102,71,69,72,72,38,40,20,29,0,49,27,31,0,0,8,8,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. O-O Bd7 6. c3 g6 7. Re1 Bg7 8. Nbd2 O-O 9. Ba4 {C66: Ruy Lopez: Steinitz Defence} Nh5 10. Nf1 Kh8 11. Bb3 (11. h3 f5 12. exf5 gxf5 13. d4 e4 14. Ng5 Nf6 15. d5 Ne5 16. Bxd7 Qxd7 {1-0 (42) Caruana,F (2804)-Kramnik,V (2812) Paris 2016}) 11... Qe8 12. Ne3 f5 13. exf5 gxf5 {LiveBook: 4 Games} 14. Nd5 Rc8 15. d4 e4 16. Ng5 Na5 (16... Nf6 $14) 17. Bc2 $146 (17. Nxc7 $1 $16 Rxc7 18. Bf7 $1 {[%mdl 512]} Rxf7 19. Qxh5) 17... c6 (17... Nf6 $14 18. Nf4 h6) 18. Nf4 (18. Bxe4 $1 $16 fxe4 19. Rxe4 cxd5 20. Rxe8 Rcxe8 21. Nxh7) 18... Nf6 19. b3 b6 20. Ba3 Nb7 21. f3 (21. Bd3 $16) 21... h6 22. Ngh3 c5 23. dxc5 dxc5 24. c4 Bc6 25. Bb2 Qf7 26. fxe4 fxe4 27. Qe2 Nd6 28. Rad1 Rcd8 29. Kh1 Nfe8 (29... Nf5 $14) 30. Bxg7+ (30. Rf1 $142 $1 Nf6 31. Nd5 Bxd5 32. Rxd5 (32. cxd5 Qh5 $14)) 30... Nxg7 $16 31. Qg4 {aiming for Ng6+.} Kh7 (31... Rfe8 $14) 32. Nd5 {And now Rxe4 would win.} Bxd5 (32... Ngf5 $142) 33. Rxd5 Qe6 34. Qh4 ({Don't take} 34. Bxe4+ $6 Nxe4 35. Qxe4+ Qxe4 $11) 34... Kh8 35. Bxe4 Rde8 {[#]} 36. Re5 $1 {[%cal Re5e6]} Qf6 37. Qxf6 Rxf6 38. Rxe8+ Ngxe8 39. Bc6 Nc7 40. Re7 Rf7 41. Re1 Rf6 $1 42. Bf3 Ne6 43. Nf2 Nd4 44. Ng4 Nxf3 45. Re3 ({White should play} 45. Re7 $16 Rf7 46. Rxf7 Nxf7 47. gxf3) 45... Rf4 $14 46. gxf3 {[%mdl 4096] Endgame KRN-KRN} Nf5 47. Re8+ Kg7 48. Kg2 Rd4 49. Kf2 Rd3 50. Re5 Nd4 51. Re7+ Kf8 52. Rxa7 {Ne5 is the strong threat.} Rxf3+ 53. Kg2 Rf5 54. Nxh6 Rg5+ 55. Kf2 Rg6 56. Rf7+ Ke8 {[%mdl 1024] Black has compensation.} 57. Rh7 Rf6+ {[#]} ({Black should try} 57... Re6) 58. Kg2 $1 $16 Re6 59. Ng4 {Threatens to win with Kg3.} Re2+ 60. Kg3 {Hoping for Ra7.} Rxa2 61. Nf6+ Kf8 62. Nd7+ Kg8 63. Nf6+ Kf8 64. Rb7 Nxb3 65. h4 {Threatening Nd7+.} Na5 {The position is equal.} 66. Rxb6 {next h5 is good for White.} Nxc4 67. Rc6 Ne5 68. Rxc5 Ra3+ 69. Kg2 Ra2+ 70. Kg3 Ra3+ 71. Kg2 Ra2+ 72. Kg3 {Precision: White = 47%, Black = 55%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.26"]
[Round "8"]
[White "Nakamura, Hikaru"]
[Black "Shankland, Samuel"]
[Result "1/2-1/2"]
[ECO "A01"]
[WhiteElo "2787"]
[BlackElo "2671"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,75,-3,-8,-14,0,0,0,0,0,-18,-18,-33,-13,-14,0,-15,-9,-42,-12,-23,-25,-28,-24,-31,-14,-30,-23,-75,-75,-105,-94,-118,-104,-125,-100,-155,-101,-110,-16,-32,-26,-97,-26,-28,-27,-35,-48,-148,-118,-120,-90,-87,-97,-107,-102,-95,-110,-95,0,0,0,0,0,0,0,0]} 1. b3 e5 2. Bb2 Nc6 3. e3 Nf6 4. Bb5 e4 5. f3 a6 6. Bxc6 {A01: Nimzowitsch-Larsen Opening} dxc6 {LiveBook: 3 Games} 7. Qe2 $146 ({Predecessor:} 7. fxe4 Nxe4 8. Nf3 Bd6 9. d3 Ng5 10. O-O Bg4 11. Nbd2 O-O 12. Qe1 Nxf3+ 13. Nxf3 {½-½ (79) Mamedyarov,S (2799)-Harikrishna,P (2744) Huaian 2017}) 7... Bf5 8. fxe4 Bxe4 9. d3 $1 {[%cal Rd3e4]} Bg6 10. Nc3 Bc5 11. O-O-O Qe7 12. e4 Ba3 13. g4 a5 {[%cal Ba6a5,Ba5a4][%mdl 32]} 14. g5 Nh5 15. Qe3 O-O 16. Nge2 b5 17. Bxa3 Qxa3+ 18. Kb1 $1 a4 19. Nc1 (19. Nd4 $11) 19... Rfb8 $17 20. Rhe1 c5 {[%cal Bc6c5,Bc5c4][%mdl 32]} 21. Ka1 axb3 22. cxb3 {[#]} c4 $1 {[%mdl 512] ...cxb3 is the strong threat.} 23. Nb1 (23. Rd2 $142) (23. bxc4 Qxc3+) 23... Qa6 (23... Qa5 $142 24. Qd2 Qb6) 24. Rd2 f5 (24... Qe6 $17 {And now ...cxb3 would win.} 25. Rb2 c6) 25. exf5 $11 Bxf5 26. b4 (26. Nc3 $11 {remains equal.} Bg6 27. Nd5) 26... Qg6 (26... Bg6 $17 27. Qc5 cxd3) 27. Rf1 c6 $36 {[%mdl 2048] Black has some pressure.} 28. Nc3 Re8 29. Qf3 (29. Qc5 $1 $15 Bxd3 30. Nxd3 cxd3 31. Rf3) 29... Bxd3 30. Nxd3 Rf8 31. Qd1 cxd3 32. Rxf8+ Rxf8 33. Rxd3 Qxg5 34. Rd6 Qf4 (34... Rf6 $17 35. Qb3+ (35. Rd8+ Kf7 $15) 35... Kf8 36. Rd8+ Ke7) 35. Rxc6 {The position is equal.} Qxb4 36. Qd5+ Kh8 37. Qxb5 Qf4 38. Qc5 {Precision: White = 54%, Black = 56%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.26"]
[Round "8"]
[White "So, Wesley"]
[Black "Caruana, Fabiano"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2786"]
[BlackElo "2804"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,92,20,46,11,13,16,15,4,5,10,6,11,7,4,9,0,0,0,15,0,6,0,0,0,0,0,0,0,0,0,0,-8,-14,-10,-12,-15,-14,-15,-5,-15,-10,-36,-10,-15,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Bd3 d5 6. O-O {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves} Be7 7. Re1 Nd6 {LiveBook: 10 Games} 8. c3 $146 {White is slightly better.} (8. Nc3 {seems wilder.} c6 9. Qe2 Nd7 10. b4 Nf8 11. b5) ({Predecessor:} 8. Nc3 c6 9. Qe2 Bg4 10. b3 Bxf3 11. Qxf3 O-O 12. Ba3 Nc8 {½-½ (55) Movsesian,S (2747)-Harikrishna,P (2686) Sarajevo 2009}) 8... O-O 9. Bc2 c6 10. d4 Bf5 11. Bf4 {Bxd6 is the strong threat.} Bxc2 12. Qxc2 Na6 13. Nbd2 Nc7 14. Re2 Re8 15. Rae1 Bf8 16. Ne5 (16. Rxe8 {is more complex.} Ndxe8 17. Nf1 Ne6 18. Be5 Nd6 19. Ne3) 16... Qf6 17. Bg3 Qf5 18. Qxf5 Nxf5 19. Nd3 Nxg3 20. hxg3 f6 21. g4 Kf7 22. Nf3 Rxe2 23. Rxe2 Ne6 24. g3 a5 25. Kg2 a4 26. Re1 Re8 27. Rh1 h6 (27... a3 {looks sharper.} 28. Rb1 axb2 29. a4 Ra8 30. Rxb2 Nd8) 28. Re1 {The position is equal.} Nc7 29. Rxe8 Kxe8 $11 {[%mdl 4096] Endgame KBN-KNN} 30. Ng1 b6 31. b3 axb3 32. axb3 g5 33. Ne2 Kd7 34. Kf1 Ke6 35. f3 Nb5 36. Nb2 Bd6 37. Kf2 Bc7 38. Nd1 Nd6 39. Ne3 f5 40. gxf5+ Nxf5 41. Nxf5 Kxf5 {KB-KN} 42. g4+ Ke6 43. Ke3 b5 44. Kf2 Bd6 45. b4 Bf4 46. Nxf4+ gxf4 {Precision: White = 68%, Black = 78%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.26"]
[Round "8"]
[White "Onischuk, Alexander"]
[Black "Xiong, Jeffery"]
[Result "1/2-1/2"]
[ECO "D85"]
[WhiteElo "2672"]
[BlackElo "2665"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,60,0,0,25,23,25,25,23,23,23,17,18,20,23,22,22,22,25,19,19,22,25,15,20,20,18,0,11,10,15,0,13,0,0,0,9,0,0,0,10]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Qa4+ Qd7 {D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3} 8. Bb5 (8. Qb3 O-O 9. Nf3 c5 10. Be3 b6 11. Rd1 Qc7 12. Be2 Nd7 13. e5 e6 14. h4 Bb7 15. h5 {½-½ (55) Nakamura,H (2781)-Vachier Lagrave,M (2793) Caleta 2018}) 8... c6 9. Be2 O-O 10. Qa3 b6 11. Nf3 c5 12. O-O {LiveBook: 17 Games} Bb7 {[%cal Rc5d4]} 13. d5 e6 14. Be3 exd5 15. Rad1 Nc6 $146 16. exd5 {[#] And now Bb5 would win.} Ne7 17. c4 Nf5 18. Bf4 Rfe8 19. Bd3 Nd4 20. Nxd4 Bxd4 21. Rb1 Qg4 22. Qc1 Bc8 {The position is equal.} 23. Qd2 Bd7 24. Rbe1 Bc3 25. Qxc3 Qxf4 26. Qa3 Qg5 {Hoping for ...Bh3.} 27. Be4 Qf4 28. Bd3 Qg5 {Threatens to win with ...Bh3.} 29. Be4 Qf4 30. Bd3 Qg5 {Precision: White = 56%, Black = 75%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.26"]
[Round "8"]
[White "Robson, Ray"]
[Black "Akobian, Varuzhan"]
[Result "1-0"]
[ECO "C11"]
[WhiteElo "2660"]
[BlackElo "2647"]
[Annotator "TA"]
[PlyCount "287"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,286,39,25,38,33,58,8,7,0,-1,-10,18,14,31,30,35,28,24,-14,39,41,48,55,72,53,66,-44,57,35,66,0,0,0,0,-13,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-1,0,0,0,0,0,0,0,0,0,0,7,4,4,0,0,-8,0,0,0,0,0,0,0,0,0,0,0,0,90,90,90,90,91,91,94,88,80,79,72,77,88,76,91,8,17,8,139,144,827,447,1516,1369,1029,8,5726,8,8,8,8,8,8,8,8,8,8,0,8,8,8,8,8,8,8,8,8,8,8,8,8,0,8,8,8,0,8,8,8,8,8,0,8,8,8,0,8,0,8,8,19,19,19,19,32,32,123,111,413,1513,1250,413,1285,1349,4120,4116,1932,1132,1154,1012,858,993,493,413,420,417,11663,11694,12286,11052,8505,8505,3419,1301,29936,29943,29943,29944,29945,29945,29947,29947,29950,29950,29946,12849,5650,0,11740,5619,4828,4133,1980,866,29964,29965,29963,29967,29967,29968,29968,29969,29969,29970,29970,29971,29974,29975,29975,29974,29975,29976,29977,29973,29976,29978,29977,29977,29979,29977,29977,29979,29981,29980,29982,4137,29983,29984,29984,29985,29985,29986,29987,29988,29988,29989,29989,29990,29990,29991,29991,29990,29992,29993,29993,29994,29994,29995,29995,29996,29996,29997,29997,29998,29998,29999,29999]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 Qb6 8. Na4 Qa5+ 9. c3 c4 10. b4 Qc7 11. Be2 Be7 12. O-O O-O {C11: French: Classical System: 4 e5 and 4 Bg5 dxe4} 13. Qd2 (13. Qc2 b5 14. Nc5 Nxc5 15. dxc5 a5 16. a3 Bd7 17. Nd4 Nxd4 18. Bxd4 axb4 19. axb4 Rxa1 20. Rxa1 {1-0 (33) Caruana,F (2779)-Ivanchuk,V (2731) Elancourt 2013}) 13... f5 14. exf6 $146 ({Predecessor:} 14. Nb2 b5 15. a4 bxa4 16. Nxa4 a5 17. Nc5 Nxc5 18. bxc5 Ba6 19. Kh1 Bb5 20. Rg1 {½-½ (69) Zontakh,A (2440)-Lembak,J (2290) Litomysl 1994}) 14... Nxf6 {The position is equal.} 15. Qc2 b6 16. Ne5 Bb7 17. Nb2 b5 18. a4 a6 19. Bf3 Bd6 20. Rae1 Ne7 (20... Ne4 $11) 21. a5 $14 Nf5 22. Nd1 Ne4 23. Bc1 {[%cal Rf3e4]} Qe7 24. g3 {[#]} (24. Bxe4 $14 dxe4 25. Nf2) 24... Rad8 ({Better is} 24... Nxc3 $1 $15 {[%mdl 512]} 25. Nxc3 (25. Qxc3 Bxb4) 25... Nxd4) 25. Bg4 Ba8 26. Nf2 (26. Bd2 $14) 26... Nxc3 $1 $11 27. Bxf5 exf5 28. Qxc3 Bxb4 29. Qb2 {Threatens to win with Nc6!} Bxe1 30. Rxe1 b4 31. Ned3 $1 Qc7 32. Nxb4 Qxa5 33. Bd2 Qb5 34. Qa1 a5 35. Nc2 a4 36. Nd1 Qb3 37. Nce3 Rb8 38. Nc3 {And now Rb1 would win.} Qb2 39. Qxb2 $1 Rxb2 40. Bc1 Rb3 41. Nxa4 Bc6 42. Nc5 Rb1 43. Kf2 g6 44. Nc2 Ra8 {Strongly threatening ...Ra2.} (44... Re8 {looks sharper.} 45. Be3 Rb2 46. Re2 Ra8 47. Bc1 Rb1) 45. Ba3 $1 Rxe1 (45... Rab8 {is more complex.} 46. Re6 Be8 47. Re7 Rd1 48. Na6 Rc8) 46. Kxe1 Kf7 47. Kd2 h6 48. h4 Kf6 49. Bb2 Rb8 50. Bc3 Rb1 (50... Ke7 $11 {keeps the balance.}) 51. Nb4 $16 Ba8 52. Nca6 $1 Rg1 53. Nc7 Bb7 54. Nbxd5+ Bxd5 55. Nxd5+ Kf7 56. Ne3 {aiming for d5.} Rxg3 {[#]} 57. d5 $1 g5 {[#]} 58. hxg5 ({But not} 58. Nxf5 $6 Rd3+ 59. Kc2 gxf4 $11) (58. Nxc4 $2 gxh4 59. Ne5+ Ke7 $19) (58. h5 $1 $16) 58... hxg5 $11 59. fxg5 Rxg5 (59... f4 $11 60. Nxc4 Rxg5) 60. Be5 $16 Ke7 $2 {[%mdl 8192]} (60... Rh5 $16 61. Nxc4 Rh7) 61. Bf4 Rh5 (61... Rg8 $142 62. Nxc4 (62. Nxf5+ Kd7 $16) 62... Rg1) 62. Nxc4 $18 Rh3 63. Ke2 $2 (63. Nb6 $18 {Hoping for d6+.} Kd8 64. Be5) 63... Rc3 $2 {[%mdl 8192]} (63... Rb3 $11) 64. Ne3 $2 ({White should play} 64. Nb6 $18 {Black must now prevent d6+.} Rc2+ 65. Ke3) 64... Kf6 $11 65. Bd6 Rb3 66. Kf3 {White wants to play Kf4.} Rd3 67. Bc7 Rd4 68. Bd8+ Ke5 69. Bc7+ Kf6 70. Bb6 Ra4 71. Bd8+ Ke5 72. Bc7+ Kf6 73. Bf4 Rd4 74. Bg3 Ra4 75. Bh2 Rd4 76. Bc7 Ra4 77. Bd6 Rd4 78. Bc7 Ra4 79. Ng2 Rc4 80. Bb8 Rb4 81. Bc7 Rc4 82. Bg3 Rd4 83. Ne3 Ra4 84. Bd6 Rd4 85. Ba3 {White wants to mate with Bb2.} Ra4 (85... Rd2 {is interesting.} 86. Bb4 Rd3 87. Ke2 Rb3 88. Bd6 Rb5) 86. Bb2+ Kg6 $1 87. Be5 Ra3 88. Ke2 Kf7 ({Black should try} 88... Ra4 $1 $14) 89. Nc4 ({Much worse is} 89. Nxf5 $6 Ra5 $11) 89... Ra4 $2 {[%mdl 8192]} (89... Rb3 $16 90. Kd2 Kg6) 90. Kd3 $18 Ra2 91. Kd4 (91. Bf4 $142 Ra1 92. Kd4) 91... Rf2 (91... Re2 $142 92. Bb8 Kf6) 92. Bg3 Rg2 93. Bf4 Re2 94. Kc5 Kf6 95. Be5+ Ke7 96. Bg3 Rc2 97. Kd4 Re2 98. Ne3 Rd2+ (98... Kf6 $142 99. Bh4+ Kf7 100. Nxf5 Rh2) 99. Ke5 Re2 100. Bf4 Kd7 101. Kxf5 Rd2 102. Ke5 (102. Ke4 $142 Re2 103. Ke5) 102... Re2 103. Kd4 Rf2 104. Be5 Rd2+ 105. Kc5 Re2 106. Nc4 Rc2 107. Bf4 Rc3 108. Kd4 (108. Bd2 $142 Rc2 109. Kb5 Kc7 110. Ba5+ Kc8 111. Nb6+ Kc7 112. Nc4+ Kd7 113. Bb4) 108... Rb3 109. Kc5 (109. Ne5+ $142 Ke7 110. Nd3) 109... Rc3 110. Kb4 (110. Bd2 $142 Rc2 111. Kb5) 110... Rh3 111. Nb6+ Ke7 112. Bc7 (112. Kc5 $142 Rd3 113. Bg5+ Ke8 114. d6) 112... Rh1 113. d6+ Ke6 114. d7 Rb1+ 115. Kc3 Rd1 116. d8=Q Rxd8 117. Bxd8 Kd6 118. Kd4 Kc6 119. Nc4 Kd7 120. Bg5 Kc6 121. Bf4 Kb7 122. Kd5 Ka7 123. Kc6 Ka8 124. Be3 Kb8 125. Nd6 Ka8 126. Nb5 Kb8 127. Nc7 Kc8 128. Ba7 Kd8 129. Nd5 {White mates.} Ke8 130. Kd6 Kf7 131. Ne7 Kf6 132. Be3 Kf7 133. Bg5 Ke8 134. Nc6 Kf7 135. Ne5+ Ke8 136. Ke6 Kf8 137. Kd7 Kg7 138. Ke7 Kg8 139. Bh6 Kh7 140. Bf8 Kg8 141. Ng4 Kh7 142. Kf7 Kh8 143. Bg7+ Kh7 144. Nf6# {Precision: White = 61%, Black = 40%.} 1-0

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.26"]
[Round "8"]
[White "Zherebukh, Yaroslav"]
[Black "Izoria, Zviad"]
[Result "1/2-1/2"]
[ECO "E10"]
[WhiteElo "2640"]
[BlackElo "2599"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,70,7,0,0,0,0,0,8,-42,-8,-4,0,-9,-15,-12,-6,-33,-29,-29,-12,-6,-4,-10,-9,-4,38,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,-8,0,-14,0,0,0,0,0,0,0,0,0,0,0,-6,-10]} 1. d4 Nf6 2. c4 e6 3. Nf3 a6 4. g3 b5 5. b3 Bb7 6. Bg2 {E10: Blumenfeld Gambit} c5 7. O-O {LiveBook: 5 Games} (7. d5 exd5 8. Nh4 Ne4 9. cxd5 Qf6 10. Bxe4 Qxa1 11. Qc2 d6 12. O-O {1-0 (56) Salem,A (2638)-Khismatullin,D (2632) Riadh 2017}) 7... cxd4 8. Qxd4 Nc6 {[%cal Bb8c6,Bc6e7,Be7g6][%mdl 32]} 9. Qf4 Ne7 10. Nc3 Ng6 11. Qd4 bxc4 12. bxc4 Rc8 13. Rb1 Bc5 $146 ({Predecessor:} 13... Rc7 14. e4 Bc5 {1-0 (112) Wuttke,H-Von Herman,U (2290) Germany 1995}) 14. Qd1 Bc6 15. Na4 Ba7 (15... Be7 {with more complications.} 16. Be3 O-O 17. Bb6 Qe8 18. Bd4 Rb8) 16. Nd2 Bxg2 17. Kxg2 O-O 18. Bb2 e5 19. e4 d6 {The position is equal.} 20. Nc3 Nd7 21. Nd5 Ne7 22. Ba3 Bc5 23. Qa4 Bxa3 24. Qxa3 Nc5 25. Rfe1 f5 26. Nxe7+ Qxe7 27. exf5 $1 Rxf5 28. Qe3 Rcf8 29. Rf1 Qc7 30. f3 Qc6 31. Ne4 Nxe4 32. Qxe4 Qxe4 33. fxe4 Rxf1 34. Rxf1 Rc8 35. Rc1 Kf7 {Precision: White = 73%, Black = 72%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.26"]
[Round "8"]
[White "Liang, Awonder"]
[Black "Lenderman, Aleksandr"]
[Result "0-1"]
[ECO "C42"]
[WhiteElo "2552"]
[BlackElo "2599"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,80,12,12,26,39,39,16,11,14,15,22,16,16,0,8,0,0,-27,0,-27,-41,-63,0,0,-12,-7,0,-4,0,-5,0,-32,-29,-25,-25,-29,-46,-40,-18,-26,0,-7,-5,-37,-38,-36,-56,-40,-41,-142,-135,-485,-484,-555,-577,-707,-692,-619,-608,-595,-565]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 c6 9. Nc3 Nxc3 10. bxc3 dxc4 11. Bxc4 Bf5 12. Re1 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves} Nd7 {[%cal Bb8d7,Bd7b6,Bb6c4][%mdl 32]} 13. Bg5 Qa5 14. Nh4 {Threatening Be7.The position is equal.} (14. Qb3 b5 15. Bf1 Rfe8 16. c4 Be6 17. Qc2 bxc4 18. Bxc4 Bxc4 19. Qxc4 Qd5 {½-½ (30) Anand,V (2783)-Caruana,F (2807) Saint Louis 2017}) 14... Nb6 15. Bb3 {[#] And now c4 would win.} Bd7 16. Bd2 Rae8 17. Rxe8 $146 ({Predecessor:} 17. Qf3 Re7 18. g3 Rfe8 19. Ng2 Be6 {1-0 (36) Clair,M (2185)-Armand,L (1859) France AJEC 2002}) 17... Rxe8 18. Rb1 Qa6 19. Qh5 Nc4 (19... Nd5 {is more complex.} 20. Rd1 Qd3 21. Nf3 Be6 22. c4 Nf6) 20. Nf3 {[%cal Bh4f3,Bf3d2,Bd2e4][%mdl 32]} h6 21. h3 Be6 (21... b5 $1 $15) 22. Re1 $11 Qb5 23. Qh4 Nxd2 24. Nxd2 Qd3 25. Ne4 $1 {[%cal Re4d6]} Bc7 {White must now prevent ...Bxb3.} 26. f3 b6 27. Qf2 Kf8 28. Rd1 Qb5 29. Qb2 Bxb3 30. axb3 Kg8 31. c4 Qb4 32. d5 cxd5 33. cxd5 Be5 $36 {[%mdl 2048] Black fights for an advantage.} 34. Qc2 f5 {[%cal Bf7f5,Bf5e4][%mdl 32]} 35. Qc6 (35. Nf2 $15) 35... Kf8 $17 36. d6 $2 {[%mdl 8192]} (36. Nf2 $17) 36... fxe4 $19 {Black is clearly winning.} 37. d7 {[%csl Gc6][%cal Rd7e8] [#]} Rd8 38. Qe6 Qc5+ 39. Kh1 e3 {Hoping for ...e2.} 40. f4 Bf6 {Precision: White = 43%, Black = 79%.} 0-1

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.27"]
[Round "9"]
[White "Caruana, Fabiano"]
[Black "Nakamura, Hikaru"]
[Result "1/2-1/2"]
[ECO "C65"]
[WhiteElo "2804"]
[BlackElo "2787"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,105,29,27,35,11,15,12,16,16,16,12,7,19,28,-25,-17,-18,-18,-27,-33,-33,-19,-33,0,0,18,-1,35,0,0,0,0,0,0,0,0,0,0,0,46,0,0,-32,0,-7,0,-25,0,-41,-41,-39,-46,-54,0,0,0,0,0,0,0,-82,-81,-87,-86,-83,-90,-90,-83,-79,-44,-105,-79,-82,-33,-220,-218,-182,-50,-147,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. c3 O-O 6. O-O {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5} Re8 7. Nbd2 a6 8. Bxc6 dxc6 9. Nc4 {LiveBook: 25 Games} Bd6 $146 ({Predecessor:} 9... Bg4 10. h3 Bh5 11. Bg5 h6 12. Bxf6 Qxf6 13. g4 Bg6 14. Ncxe5 {0-1 (66) Caruana,F (2802)-Nakamura,H (2786) chess.com INT 2017}) 10. Bg5 b5 11. Ne3 Qe7 12. Nh4 Qe6 13. Nhf5 Bf8 14. f4 {fxe5 is the strong threat.} Nd7 15. Ng3 (15. fxe5 $142 Nxe5 16. a4) 15... f6 $11 16. f5 Qf7 17. Bh4 Bb7 18. Qe2 Rad8 19. Nh1 Nc5 20. Rfd1 Rd6 21. Nf2 Red8 22. Rd2 a5 23. g4 g5 24. Bg3 Ba6 25. Rad1 b4 26. c4 b3 27. a3 R6d7 28. Qe1 Nb7 29. Nh1 Nc5 {[%cal Rc5d3]} 30. Qe2 Rd4 31. Be1 R8d6 32. Nf2 Qd7 33. Kg2 Qd8 34. h3 Rd7 (34... Bh6 $15) 35. Nf1 {[%cal Be3f1,Bf1h2,Bh2f3][%mdl 32]} Na4 $1 36. Nh2 Bc5 37. Nf3 R4d6 38. Rc1 (38. h4 $11 h6 39. hxg5 hxg5 40. Rc1) 38... Bxf2 $17 39. Qxf2 c5 40. Qe2 Rxd3 41. Rxd3 Rxd3 42. Bxa5 Bb7 43. Kf2 (43. Bxc7 $15 Qd7 44. Rb1) 43... Qd7 44. Re1 Rd6 45. Rc1 $2 (45. h4 $1 $15) 45... Qc6 $1 $19 46. Re1 {[#]} Rd8 ({Black should play} 46... Qxe4 $1 $19 {[%mdl 512]} 47. Qxe4 Bxe4 48. Bxc7 (48. Rxe4 $2 Nxb2 49. Ke2 Nxc4 $19) 48... Rd7 49. Rxe4 Nxb2 50. Nxe5 Rxc7) 47. h4 {[#]} (47. Kg1 $15) 47... h6 ({Better is} 47... Qxe4 $1 $17 {[%mdl 512]} 48. Qxe4 Bxe4 49. Rxe4 Nxb2) 48. hxg5 $11 {The position is equal.} hxg5 49. Kg3 Rd7 50. Qh2 {Threatens to win with Rh1.} Rh7 51. Qd2 {And now Qd8+ would win.} Rd7 $1 {[%cal Rd7d2]} 52. Qh2 {Strongly threatening Rh1.} Rh7 53. Qd2 {Precision: White = 49%, Black = 60%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.27"]
[Round "9"]
[White "Shankland, Samuel"]
[Black "Zherebukh, Yaroslav"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2671"]
[BlackElo "2640"]
[Annotator "TA"]
[PlyCount "141"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,141,0,16,-22,-22,-22,-22,-22,-22,-22,-23,-23,-22,-18,-20,-18,-20,-19,-8,0,14,14,143,145,131,145,172,175,162,156,169,167,160,151,165,167,164,158,270,209,205,190,185,177,161,101,206,116,115,116,148,148,149,147,148,147,158,150,150,148,239,227,276,276,339,344,344,343,356,178,262,175,189,156,162,171,155,54,54,53,56,55,51,51,51,51,49,48,59,59,59,59,57,57,54,45,68,73,295,162,295,295,295,287,287,272,258,238,224,156,224,224,443,434,305,305,932,926,922,867,786,658,571,564]} 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 4. d4 Nbd7 5. Bg5 Be7 6. e3 h6 7. Bh4 O-O 8. Rc1 c6 9. a3 a6 10. c5 {D63: Queen's Gambit Declined: Classical: 7 Rc1} e5 {LiveBook: 3 Games} 11. Nxe5 $146 ({Predecessor:} 11. Be2 e4 12. Nd2 Nh7 13. Bg3 f5 14. h4 g5 15. hxg5 hxg5 16. f4 exf3 17. Nxf3 Bf6 {1-0 (33) Akobian,V (2612)-Shulman,Y (2632) Upper Lake 2009}) 11... Nxe5 12. dxe5 {The position is equal.} Nd7 13. Bxe7 Qxe7 14. Qd4 Nxe5 15. Be2 Qg5 16. g3 Qe7 17. O-O Bh3 18. Rfe1 f5 19. f3 Rae8 20. Nd1 $1 {[%cal Rd1f2] [#] aiming for Nf2.} Qf7 (20... f4 $1 $11 {[%mdl 512]} 21. Nf2 (21. exf4 Nxf3+) 21... fxg3 22. Nxh3 Nxf3+ 23. Bxf3 Rxf3) 21. Nf2 $1 $36 {[%cal Rf2h3][%mdl 2048] White has strong initiative.} Qh5 22. Qh4 $1 {[%cal Rh4h5]} Qxf3 {[%csl Gh3][%cal Rf3g2]} 23. Qxh3 Qxe3 24. Bh5 Nf3+ 25. Bxf3 $1 Qxf3 26. Qg2 Qb3 27. Nh3 Re4 28. Qd2 b6 (28... Rfe8 $16 29. Nf2 Re3) 29. Nf2 Rxe1+ 30. Qxe1 bxc5 31. Rxc5 Qxb2 32. Qc3 (32. Rxc6 $18 Qd4 33. Qe6+ Kh7 34. Qg6+ Kg8 35. Rc8 $1 {[%mdl 512]} (35. Rxa6 f4 $18) 35... Qa1+ 36. Kg2 Qxa3 37. Qxf5) 32... Qb8 (32... Qb1+ $16 {was necessary.} 33. Kg2 f4 34. gxf4 Qg6+ 35. Qg3 Qe6) 33. Nd3 ({White should play} 33. Rxc6 $18 {Rc7 is the strong threat.} f4 34. Rc7) 33... Qb1+ 34. Kg2 f4 35. Nxf4 Qe4+ 36. Kg1 g5 37. Ng2 $1 ({Inferior is} 37. Rxc6 gxf4 38. Rc7 Qe3+ 39. Kh1 Qxc3 $17) 37... Qf5 {[%csl Gf8][%cal Rf5f1]} 38. Qe1 Qf6 39. Rc1 d4 (39... Qd4+ $16 40. Qe3 Qxe3+ 41. Nxe3 Rf6) 40. Qe2 $18 c5 41. Ne1 ({Stronger than} 41. Rxc5 d3 $11) 41... Rc8 42. Nd3 c4 43. Qe4 Qd6 44. Ne5 (44. Nb4 $142) 44... c3 (44... Re8 {is a better defense.}) 45. Nd3 Kg7 46. Kg2 Rc7 47. Re1 c2 48. h4 ({White should try} 48. Kg1 $16) 48... Qc6 $1 $14 49. Qxc6 $1 Rxc6 {[%mdl 4096] Endgame KRN-KR} 50. Kf3 gxh4 51. gxh4 Rc3 52. Ke4 {Threatens to win with Rc1.} Rxa3 53. Rc1 Rc3 54. Kxd4 Rc8 55. Nc5 Kg6 56. Rxc2 Kh5 57. Rh2 {Black must now prevent Ne4.} Rg8 58. Ne4 {Intending Nf6+ and mate.} Rg1 $2 (58... Rc8 $16 59. Nf6+ Kg6) 59. Nf6+ $18 Kg6 60. Ke5 Re1+ 61. Ne4 Kh5 62. Kf4 $1 Rf1+ {[#]} 63. Kg3 $1 Re1 {[#]} 64. Nf6+ $1 Kg6 65. Nd5 Rd1 $2 (65... Re5 {was called for.}) 66. Nf4+ Kf5 67. Ra2 Rg1+ $2 (67... Rd6 68. Kf3 Ke5) 68. Ng2 {White is clearly winning.} Rb1 69. Rxa6 Rb3+ 70. Kh2 Kg4 71. Rxh6 {Precision: White = 73%, Black = 55%.} 1-0

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.27"]
[Round "9"]
[White "Xiong, Jeffery"]
[Black "Liang, Awonder"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2665"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,60,18,22,0,13,19,39,45,51,50,48,47,54,50,41,35,33,36,39,15,16,0,0,0,0,0,0,-22,-19,-12,0,-18,0,0,0,0,0,0,0,0,0]} 1. e4 c6 {[%cal Bc7c6,Bc6c5][%mdl 32]} 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 c5 6. Be3 Qb6 7. Nc3 {[%cal Bb1c3,Bc3a4,Ba4c5,Bc5b7][%mdl 32]} Nc6 8. Na4 {B12: Caro-Kann: Advance Variation} (8. O-O Qxb2 9. Qe1 cxd4 10. Bxd4 Nxd4 11. Nxd4 Bb4 12. Rb1 Bxc3 13. Rxb2 Bxe1 14. Rxe1 b6 15. Bb5+ Kf8 16. Nxf5 exf5 {½-½ (55) Inarkiev,E (2689)-Riazantsev,A (2650) St Petersburg 2017}) 8... Qa5+ 9. c3 cxd4 10. Nxd4 Nxd4 11. Bxd4 Ne7 {LiveBook: 8 Games} 12. Qb3 Qc7 13. Nc5 Nc6 14. Qxb7 Qxb7 15. Nxb7 {[#] Hoping for Bb5.} Nxd4 16. cxd4 {Intending Bb5+ and mate.} Bb4+ $146 17. Kd1 Rb8 18. Ba6 Bd3 19. Bxd3 Rxb7 20. Rc1 Kd7 {The position is equal.} 21. Ke2 Ba5 22. Rc2 Rhb8 23. b3 Rb4 24. Rhc1 ({Reject} 24. Bxh7 g6 $17) 24... Rxd4 25. g3 Rdb4 26. Rc6 ({Of course not} 26. Bxh7 g6 $17) 26... R4b7 27. Rd6+ Ke7 28. Rdc6 Kd7 29. Rd6+ Ke7 30. Rdc6 Kd7 {Precision: White = 58%, Black = 67%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.27"]
[Round "9"]
[White "Akobian, Varuzhan"]
[Black "So, Wesley"]
[Result "1/2-1/2"]
[ECO "D82"]
[WhiteElo "2647"]
[BlackElo "2786"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,68,0,0,0,-7,-35,-21,-21,-24,-78,-70,-87,-95,-83,-81,-122,-68,-66,-48,-56,-55,-45,-45,-45,-35,-53,-46,-53,-53,-64,-64,-71,-26,-26,-12,-26,0,0,0,-8,0,0,0,-9,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c5 6. dxc5 Qa5 7. Qa4+ Qxa4 8. Nxa4 Bd7 9. Nc3 {D82: Grünfeld: 4 Bf4} Ne4 (9... Bc6 10. Nf3 Nbd7 11. cxd5 Nxd5 12. Nxd5 Bxd5 13. Bb5 Bxb2 14. Rb1 Bc3+ 15. Ke2 a6 16. Bxd7+ Kxd7 {½-½ (85) Wang,Y (2690)-Jumabayev,R (2612) Riadh 2017}) 10. Nxd5 Na6 11. f3 Nexc5 12. O-O-O e6 {[%cal Be7e6,Be6e5][%mdl 32]} 13. Nc3 Bxc3 {LiveBook: 5 Games} 14. bxc3 f6 15. e4 e5 {[%mdl 1024] Black has compensation.} 16. Be3 Rc8 $146 ({Predecessor:} 16... Kf7) 17. Rd5 (17. h4 $11 {keeps the balance.}) 17... Be6 $17 18. Kd2 Ke7 19. Nh3 b6 20. Be2 Bxd5 (20... Na4 $17 21. Rf1 N6c5) 21. cxd5 $15 Nc7 22. Nf2 Ne8 23. Nd3 Nxd3 24. Bxd3 Nd6 25. a4 Nc4+ 26. Bxc4 $1 Rxc4 {[%mdl 4096] Endgame KRR-KRB} 27. Ra1 $1 Rhc8 28. Ra3 $1 f5 29. Kd3 Kd7 30. h3 h5 31. h4 {The position is equal.} R4c7 32. Rb3 Rc4 33. Ra3 R4c7 34. Rb3 Rc4 {Precision: White = 51%, Black = 56%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.27"]
[Round "9"]
[White "Izoria, Zviad"]
[Black "Onischuk, Alexander"]
[Result "1/2-1/2"]
[ECO "D58"]
[WhiteElo "2599"]
[BlackElo "2672"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 39,94,26,11,21,25,8,10,6,5,6,5,5,9,6,5,0,6,6,8,7,14,0,0,0,0,0,8,0,0,0,0,0,29,0,19,0,108,25,21,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 8. Be2 Bb7 9. Bxf6 Bxf6 10. cxd5 exd5 11. b4 c5 12. bxc5 bxc5 13. Rb1 Bc6 14. O-O Nd7 15. Bb5 Qc7 16. Qd2 {D58: Queen's Gambit Declined: Tartakower Defence} Rab8 17. Bxc6 Qxc6 18. dxc5 Bxc3 19. Qxc3 Qxc5 20. Qxc5 Nxc5 {LiveBook: 5 Games} 21. Nd4 Rfc8 {[#]} 22. g3 $146 (22. Nf5 {keeps more tension.} Kf8 23. Rbd1 Rd8 24. Rd2 h5 25. Rc1) ({Predecessor:} 22. Rfc1 Rxb1 23. Rxb1 Ne6 24. Nf5 {½-½ (31) Karpov,A (2693)-Topalov,V (2739) Dubai 2002}) 22... Ne4 23. Rb3 Nd2 24. Rxb8 Rxb8 $11 {[%mdl 4096] Endgame KRN-KRN} 25. Rc1 Rb2 26. a4 Ra2 27. Rc8+ Kh7 28. Rc7 Rxa4 29. Rxf7 Ne4 30. f3 Ra1+ 31. Kg2 Ra2+ 32. Kg1 Ng5 33. Rd7 (33. Rc7 {is more complex.} Nh3+ 34. Kf1 a5 35. Nf5 Kg6 36. Ne7+) 33... a5 34. Rxd5 a4 35. Ra5 Nf7 36. Nf5 a3 37. f4 Nd8 (37... g6 $1 $11 38. Nd4 Nd6) 38. Nd4 (38. Ra6 $16) 38... Nb7 $1 {[%cal Rb7a5]} 39. Ra7 {And now Nb5 would win.The position is equal.} Nd6 40. f5 Kg8 41. g4 Nc4 {[#] Threatens to win with ...Rb2.} 42. Nb5 Rb2 43. Nxa3 Nxe3 44. h3 h5 45. gxh5 Rg2+ 46. Kh1 Rg3 47. Kh2 Rg2+ {Precision: White = 50%, Black = 79%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.27"]
[Round "9"]
[White "Lenderman, Aleksandr"]
[Black "Robson, Ray"]
[Result "1/2-1/2"]
[ECO "D90"]
[WhiteElo "2599"]
[BlackElo "2660"]
[Annotator "TA"]
[PlyCount "142"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,142,0,4,34,25,32,41,41,41,45,47,107,44,59,52,68,52,87,74,73,62,136,113,214,219,229,68,85,58,155,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,16,16,17,0,0,0,0,0,0,0,4,-18,-4,-8,-1,-8,-4,-14,0,0,0,0,0,0,0,-18,-14,-14,-14,-18,0,0,0,-18,-18,-18,-18,-18,-18,-19,-20,-27,-8,-14,-14,-20,0,0,0,-20,-20,-20,-20,-20,-20,-20,-20,-20,0,-20,0,-20,-20,-20,-20,-20,-20,-20,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. cxd5 Nxd5 6. Bg5 c5 {D90: Grünfeld: 4 Nf3 Bg7 sidelines} (6... Nxc3 7. bxc3 c5 8. e3 Qa5 9. Qd2 Nc6 10. Rb1 a6 11. Be2 O-O 12. h4 e5 13. dxc5 h6 14. h5 Bf5 15. Rxb7 hxg5 16. h6 {0-1 (36) Nepomniachtchi,I (2751)-Karjakin,S (2783) chess.com INT 2017}) 7. Rc1 Nxc3 8. bxc3 Qa5 9. Qd2 {LiveBook: 13 Games} Bg4 10. e4 Nd7 11. d5 h6 $146 {White must now prevent ...Bxf3.} ({Predecessor:} 11... O-O 12. c4 Qa4 13. Be2 Nf6 14. Bd1 Qa6 {1-0 (36) Hoidahl,E (2434)-Le Bled,P (2395) ICCF email 2007}) 12. Be3 b5 13. Be2 {[%cal Bf1e2,Be2f3,Bf3g4][%mdl 32]} e6 (13... Bxf3 $14 14. Bxf3 c4) 14. c4 (14. h3 $1 $16 {[%cal Rh3g4]} Bxf3 15. Bxf3) 14... b4 15. O-O Bc3 16. Qc2 Bxf3 17. Bxf3 e5 18. Bg4 Nf6 ({Better is} 18... Nb6 $14) 19. Bh3 Qb6 {[#]} (19... Kf8 $16) 20. a3 $1 $18 a5 {[#]} 21. Rb1 $2 (21. Qa4+ $1 $18 Ke7 22. f4) 21... Qd6 $14 22. f3 Kf8 ({Black should play} 22... O-O $14) 23. Qa4 $2 (23. Qf2 $16 Bd4 24. Bxd4 exd4 25. Rbe1) 23... Kg7 $1 $11 24. axb4 axb4 25. Qc6 Qxc6 26. dxc6 Ra7 27. Bxc5 Rc7 28. Bxb4 Bd4+ 29. Kh1 Rxc6 30. Rbc1 Rb8 31. Bd2 Rb7 32. Rc2 Ne8 33. Rfc1 Nd6 34. c5 Nb5 35. Bb4 Be3 36. Rd1 Nd4 37. Rc4 Nc2 38. Bc3 Bd4 39. Bd2 Rxc5 (39... Na3 {is interesting.} 40. Rb4 Ra7 41. Rb3 Rxc5 42. Bb4 Rb5) 40. Rxc5 Bxc5 41. g3 Bd4 42. Rc1 Rb2 43. Bf1 g5 44. Bd3 Ne3 45. Bxe3 Bxe3 {[%mdl 4096] Endgame KRB-KRB} 46. Rb1 Rf2 47. Rf1 Rd2 48. Bc4 h5 49. Re1 Bd4 50. Rf1 Kg6 51. Ba6 h4 52. Bc8 Bf2 53. Bf5+ Kf6 54. Rc1 Be3 55. Ra1 {The position is equal.} Ke7 56. Ra6 Bd4 {aiming for ...h3!} 57. Rc6 Kf8 (57... Rf2 {looks sharper.} 58. Bg4 Rb2 59. Rc7+ Kd6 60. Rd7+ Kc6) 58. gxh4 (58. Bg4 {feels hotter.} Be3 59. Rc7 Rb2 60. Rd7 Rf2 61. Bh5) 58... gxh4 59. h3 Be3 60. Bg4 Kg7 61. Ra6 f6 62. Ra8 Kf7 63. Rc8 Rb2 64. Ra8 Kg6 65. Rg8+ Kh7 66. Rc8 Kh6 67. Rg8 Rf2 68. Bf5 Rxf3 69. Rh8+ Kg5 {...Rf1+ is the strong threat.} 70. Rg8+ Kh6 71. Rh8+ Kg5 {Precision: White = 62%, Black = 56%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.28"]
[Round "10"]
[White "Nakamura, Hikaru"]
[Black "Akobian, Varuzhan"]
[Result "1-0"]
[ECO "C17"]
[WhiteElo "2787"]
[BlackElo "2647"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,99,0,0,10,2,25,0,49,56,89,97,86,89,96,106,105,101,106,91,103,95,93,101,87,72,82,98,86,85,91,88,84,84,89,45,110,121,114,105,96,100,100,56,100,100,114,112,112,99,213,197,425,415,402,421,405,409,663,559,533,540,526,517,537,524,779,771,993,986,954,899,882,865,804,778,12845,12845]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Ba5 6. b4 cxd4 7. Nb5 Bc7 8. f4 Bd7 9. Nf3 Bxb5 {C18: French: 3 Nc3 Bb4: Main line: 7 h4 and 7 Qg4} 10. Bxb5+ Nc6 11. Bd3 Nge7 12. O-O Bb6 13. Kh1 {LiveBook: 5 Games} Qd7 14. Rb1 (14. Bb2 Rc8 15. Qd2 Nf5 16. Bxf5 exf5 17. a4 {½-½ (44) Karjakin,S (2763)-Mamedyarov,S (2809) Moscow 2018}) 14... Nf5 $146 ({Predecessor:} 14... h5 15. a4 a5 16. bxa5 Bxa5 17. f5 Nxf5 18. Bxf5 exf5 19. Nxd4 Nxd4 20. Qxd4 {½-½ (145) Pacher,M (2471)-Videki,S (2400) Austria 2015}) 15. a4 {[%cal Ba3a4,Ba4a5][%mdl 32]} a6 16. a5 Ba7 17. Bxf5 $1 exf5 18. Ba3 $1 Rc8 19. b5 axb5 20. Rxb5 Nd8 21. Qb1 Rc3 22. e6 fxe6 23. Ne5 Qc7 24. Qb4 g5 {[#]} (24... Rxc2 $2 25. Qa4 $18) 25. Qa4 $1 Rxa3 26. Qxa3 gxf4 27. Re1 {Strongly threatening Rxd5!} Qc3 {[%cal Rc3e1]} 28. Qc1 Rg8 29. Nd3 Kd7 (29... Qc6 $14 30. Qb1 Rg7) 30. Qxf4 $16 {Qh6 is the strong threat.} Kc8 31. a6 $36 {[%mdl 2048] White is really pushing.} bxa6 32. Rb3 Qc7 ({Don't blunder} 32... Qxc2 $2 33. Rc1 $18) 33. Qxc7+ Kxc7 34. Ra3 Bb6 35. Rxa6 Kb7 36. Ra3 {[%mdl 1024] Threatens to win with Rb1. White has strong compensation.} Rg7 {[#]} (36... Kc6 $16 {was called for.}) 37. Rb3 $1 $18 {aiming for Reb1.} Rc7 $2 (37... Kc6 {is a better defense.}) 38. Reb1 Rc6 39. Ne5 Rd6 40. Rh3 Nc6 (40... h5 $142 41. Rxh5 Kc8) 41. Rxh7+ {White is clearly winning.} Ka6 42. Rd7 Rxd7 43. Nxd7 {[%mdl 4096] Endgame KRN-KBN} Ba7 44. h4 {[%cal Bh2h4,Bh4h5,Bh5h6,Bh6h7][%mdl 32]} e5 45. h5 e4 46. h6 {White wants to mate with h7.} d3 47. cxd3 Bd4 48. dxe4 fxe4 49. h7 Ne7 {[#]} 50. Nc5+ $1 {[%mdl 512] Precision: White = 93%, Black = 45%.} 1-0

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.28"]
[Round "10"]
[White "Onischuk, Alexander"]
[Black "Shankland, Samuel"]
[Result "0-1"]
[ECO "D38"]
[WhiteElo "2672"]
[BlackElo "2671"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,98,12,27,19,0,0,17,5,6,-12,1,0,2,2,-4,0,10,14,19,19,28,0,8,11,11,6,15,7,16,12,14,0,0,0,0,0,0,-10,-19,-29,-27,-228,-77,-85,-78,-56,-70,-83,-89,-86,-83,-96,-88,-88,-88,-89,-81,-124,-116,-122,-127,-163,-118,-161,-151,-147,-147,-137,-138,-148,-134,-143,-108,-108,-114,-290,-297,-289,-264,-383,-375,-472,-465,-447,-394]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. cxd5 exd5 6. Bg5 h6 7. Bh4 O-O {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4)} 8. e3 Bf5 {LiveBook: 34 Games} 9. a3 $146 ({Predecessor:} 9. Qb3 Bxc3+ 10. bxc3 Nbd7 11. Be2 c5 12. dxc5 g5 13. Nd4 Bg6 14. c6 bxc6 15. Nxc6 {½-½ (46) So,W (2792)-Karjakin,S (2753) Wijk aan Zee 2018}) 9... Bxc3+ $1 {The position is equal.} 10. bxc3 Nbd7 11. Be2 c5 12. O-O g5 13. Bg3 Ne4 14. c4 dxc4 15. Bxc4 Rc8 16. Rc1 Qe7 17. Bd3 Rfd8 18. Qe2 Nb6 (18... Ndf6 {looks sharper.} 19. Rfe1 cxd4 20. Rxc8 Rxc8 21. Nxd4 Bd7) 19. Bxe4 Bxe4 20. Ne5 cxd4 21. Rxc8 Rxc8 22. exd4 Bf5 23. Qh5 {Hoping for f4.} f6 24. Ng4 $1 {[%cal Rg4h6]} Bxg4 $1 25. Qxg4 Qd7 26. Qf3 Nd5 27. Qh5 Kg7 28. f4 $2 (28. Re1 $11 {and White is okay.}) 28... Qe8 $2 (28... Nxf4 $19 {has better winning chances.} 29. Bxf4 Qxd4+ 30. Rf2 Rc2) 29. Qf3 Qe3+ 30. Qxe3 Nxe3 $17 {[%mdl 4096] Endgame KRB-KRN} 31. Rf3 Nd5 32. fxg5 hxg5 33. h4 gxh4 34. Bxh4 Kf7 35. Be1 b6 36. Bd2 Rc2 37. Rd3 Ke6 38. g4 Kd6 39. Kf1 Kc6 $1 40. Ke1 Kb5 $1 41. g5 fxg5 42. Bxg5 Kc4 43. Rg3 Nc3 {Strongly threatening ...Ra2.} 44. d5 Nxd5 45. Kd1 $2 {[#]} (45. Bd2 $17 {was called for.}) 45... Rc3 $1 $19 {[%cal Rc3g3]} 46. Rg4+ {[#]} Kb3 $1 47. Rd4 (47. a4 $142) 47... Ne3+ 48. Bxe3 Rxe3 49. Kd2 Rh3 {Precision: White = 46%, Black = 74%.} 0-1

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.28"]
[Round "10"]
[White "Robson, Ray"]
[Black "So, Wesley"]
[Result "1/2-1/2"]
[ECO "C88"]
[WhiteElo "2660"]
[BlackElo "2786"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,79,14,3,12,11,11,16,14,14,11,-18,-22,-20,-5,-18,1,0,0,6,34,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-5,0,0,0,0,0,0,0,0,0,0,0,0,-2,-2,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a4 b4 9. d4 d6 10. dxe5 Nxe5 11. Nxe5 {C88: Closed Ruy Lopez: Anti-Marshall Systems} dxe5 12. Qxd8 (12. Qe2 a5 13. Nd2 Bc5 14. Nf3 Qe7 15. Be3 Ba6 16. Bxc5 Qxc5 17. Qe3 Qxe3 18. Rxe3 Rfe8 {½-½ (34) Karjakin,S (2753)-Carlsen,M (2834) Wijk aan Zee 2018}) 12... Rxd8 13. Nd2 Bc5 14. Nf3 {LiveBook: 4 Games} Ng4 15. Be3 Bxe3 16. fxe3 Rd6 $146 ({Predecessor:} 16... Be6 17. Bxe6 fxe6 18. h3 Nf6 {1-0 (65) Hovhannisyan,R (2589)-Babujian,L (2474) Yerevan 2012}) 17. Rad1 Be6 18. Bxe6 Rxe6 19. Rd5 Rc6 20. Re2 Re8 21. h3 Nf6 22. Rxe5 Kf8 23. Rd2 Nxe4 {The position is equal.} 24. Rd4 Nd6 25. Rxe8+ Kxe8 $11 {[%mdl 4096] Endgame KRN-KRN} 26. Ne1 Nc4 27. Re4+ Kd8 28. b3 Na3 29. Rxb4 Nxc2 30. Rb8+ Ke7 31. Nxc2 Rxc2 {KR-KR} 32. b4 Ra2 33. a5 c5 34. bxc5 {Threatens to win with Rb7+.} Rxa5 35. Rb7+ Ke6 36. c6 Rc5 37. c7 Kd7 38. Ra7 Rxc7 39. Rxa6 Rc6 40. Ra7+ {Precision: White = 80%, Black = 75%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.28"]
[Round "10"]
[White "Zherebukh, Yaroslav"]
[Black "Caruana, Fabiano"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2640"]
[BlackElo "2804"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,61,-16,-33,-28,-33,-29,-47,-35,-23,-12,-15,-19,-22,-16,-8,-6,-104,-91,-160,-164,-172,-169,-194,-202,-177,-175,-262,-250,-333,-260,-252,-257,-253,-241,-345,-345,-346,-341,-339,-329,-591,-537,-511]} 1. e4 c5 2. Nc3 e6 3. Nf3 a6 4. g3 b5 5. Bg2 Bb7 6. d3 Nc6 7. O-O {B40: Sicilian: 2...e6, Unusual lines} d6 8. Ng5 h6 9. Nh3 Nf6 10. f4 Be7 11. f5 {LiveBook: 3 Games} (11. Kh1 Qc7 12. Bd2 O-O-O {1-0 (43) Bacrot,E (2708)-Karjakin,S (2781) Paris 2017}) 11... b4 12. Ne2 $146 ({Predecessor:} 12. Nb1 exf5 13. Rxf5 O-O 14. c4 Nd7 15. Rf1 Bf6 16. Nf4 {½-½ (43) Tripoteau,N (2258)-Bricard,E (2456) Plancoet 2003}) 12... exf5 13. Rxf5 O-O 14. c4 bxc3 15. bxc3 Ne5 16. c4 Bc8 17. Rf1 Rb8 $36 {[%mdl 2048] Black is more active.} 18. Nhf4 {[#]} (18. Qc2 $11 {remains equal.}) 18... g5 $1 $17 19. Nd5 (19. Nh3 $142) 19... Nxd5 20. cxd5 {[#]} Bf6 $1 21. d4 cxd4 22. Nxd4 Bg4 23. Qa4 (23. Qe1 $142) 23... Nd3 $19 24. Qc4 Rb4 25. Qxd3 Bxd4+ 26. Be3 Bxa1 27. Rxa1 (27. a3 {is the only way for White.} Ra4 28. Rxa1) 27... Qf6 28. Re1 Rc8 29. h3 Bd7 30. Qxa6 $2 (30. a3 {was worth a try.} Bb5 31. Qd1) 30... Rc2 31. Rf1 {Precision: White = 39%, Black = 96%.} 0-1

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.28"]
[Round "10"]
[White "Lenderman, Aleksandr"]
[Black "Xiong, Jeffery"]
[Result "0-1"]
[ECO "A20"]
[WhiteElo "2599"]
[BlackElo "2665"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,95,56,68,44,62,44,47,81,27,29,29,28,29,34,34,58,53,57,18,14,11,20,20,20,16,10,0,0,0,0,-30,-33,-21,-23,-35,-18,-31,-14,-16,-13,-117,0,-26,0,-110,-9,-44,-34,-24,-25,-23,0,-49,-47,-72,0,-16,-9,-165,-162,-174,-174,-160,-162,-445,-338,-560,-515,-461,-470,-526,0,0,0,-883,0,-1072,-957,-29965,-29966,-762,-29972,-29972,-29972,-29972,-29972,-29973]} 1. c4 e5 2. g3 c6 3. d4 e4 4. d5 (4. Nc3 d5 5. f3 exf3 6. Nxf3 Nf6 7. Bg5 dxc4 8. e4 Bg4 9. e5 h6 10. Bxf6 gxf6 11. Bxc4 {½-½ (73) Ponkratov,P (2613)-Navara,D (2740) Katowice 2017}) 4... Bb4+ 5. Bd2 e3 6. fxe3 {LiveBook: 3 Games. A20: English Opening: 1...e5} Bxd2+ 7. Qxd2 cxd5 $146 ({Predecessor:} 7... Nf6 8. Nc3 O-O 9. d6 Re8 10. Bh3 Qb6 11. Nf3 {1-0 (22) Melkumyan,H (2632)-Tari,A (2383) Helsingor 2013}) 8. cxd5 {White is slightly better.} Nf6 9. Nc3 (9. d6 $16) 9... d6 $11 10. Bg2 O-O 11. Nf3 Bf5 12. Qd4 Re8 13. Nd2 Nbd7 14. e4 Bg6 15. O-O a6 16. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} Rc8 17. a5 Ne5 18. b4 h5 19. h3 Re7 20. Rac1 Rec7 21. Na2 Rc2 22. Rxc2 Rxc2 23. Nc1 Qd7 {[%mdl 1024] Black has compensation.} 24. Ncb3 Qb5 25. Re1 (25. Na1 $11 Ra2 26. Re1) 25... Ra2 (25... Nc4 $1 $17 26. Qd3 Nxd2 $3 {[%mdl 512]} 27. Qxc2 Ndxe4 28. Bxe4 Nxe4) 26. Nc1 Rc2 (26... Ra3 $11) 27. Ncb3 $17 Kh7 (27... Nc4 $1 $17 28. Qd3 Nxd2 $3 {[%mdl 512]} 29. Qxc2 Ndxe4 30. Qc8+ Kh7 31. Bxe4 Nxe4) 28. Bf1 Nc4 29. e3 $1 {[%cal Rd2c4] [#]} Nxd2 $1 {[%mdl 512]} 30. Nxd2 (30. Bxb5 $2 {loses.} Nf3+ 31. Kf1 Nxe4 $19) 30... Qe8 {[%cal Rf6e4]} 31. Bg2 Kg8 32. Rf1 Qb5 ({Black should try} 32... Qc8 $17) 33. Rf2 Qa4 34. Nc4 $2 (34. Bf3 $11 {and White has nothing to worry.}) 34... Rxf2 $1 $19 35. Kxf2 Qc2+ ({Weaker is} 35... Qxb4 36. Nxd6 Qxa5 37. e5 $16) 36. Nd2 {[#]} Bxe4 $1 {[%mdl 512]} 37. Bxe4 $2 {[#]} (37. Bf1 {was necessary.}) 37... Qxd2+ $1 38. Qxd2 $2 (38. Kf3 Qh2 39. Bf5) 38... Nxe4+ 39. Ke2 Nxd2 40. Kxd2 {[%mdl 4096] Endgame [#] KP-KP} f5 $2 (40... Kh7 $1 $19 {[%cal Rh7g6]} 41. Kd3 Kg6) 41. Kd3 $11 Kf7 42. Kd4 $2 {[%mdl 8192]} (42. h4 $11) 42... Kf6 $2 ({Better is} 42... Kg6 $19 {...Kg5 is the strong threat.} 43. b5 Kg5) 43. b5 $2 {[%mdl 8192]} (43. h4 $11) 43... Kg5 $19 44. e4 fxe4 45. bxa6 bxa6 46. Kxe4 {Black mates.} g6 47. Ke3 Kf5 48. Kd4 {Precision: White = 34%, Black = 67%.} 0-1

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.28"]
[Round "10"]
[White "Liang, Awonder"]
[Black "Izoria, Zviad"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "2552"]
[BlackElo "2599"]
[Annotator "TA"]
[PlyCount "133"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,133,15,0,17,6,1,0,0,6,12,-41,-23,-16,0,-35,-30,-19,0,0,0,0,53,42,37,0,17,12,12,12,10,4,16,0,46,10,12,12,12,12,14,0,13,0,0,-115,-110,-98,0,0,0,0,0,0,0,0,145,141,131,138,138,138,138,138,218,220,226,204,250,241,386,389,327,334,1013,995,1019,939,848,312,312,312,312,312,312,312,1258,189,175,189,1313,1024,1358,313,2149,1754,6102,5097,2447,1575,1495,1450,1343,1102,29974,314,29974,29975,29977,29977,29977,29960,6866,6207,29980,29981,29979,29980,29982,29983]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bxc6 dxc6 6. Qe2 {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5} (6. O-O Qe7 7. h3 Rg8 8. Kh1 Nh5 9. c3 g5 10. Nxe5 g4 11. d4 Bd6 12. g3 Bxe5 13. dxe5 Qxe5 {0-1 (27) Aronian,L (2794)-Kramnik,V (2800) Berlin 2018}) 6... Qe7 7. Nbd2 Bg4 8. h3 Bh5 9. a3 {LiveBook: 3 Games} a5 10. Nf1 Nd7 11. Ne3 $146 ({Predecessor:} 11. g4 Bg6 12. Ng3 f6 13. Be3 b6 {½-½ (29) Petrosian,T (2589)-Hovhannisyan,R (2626) Yerevan 2016}) 11... Bxe3 12. Bxe3 c5 13. Qd2 (13. g4 $11 Bg6 14. Nd2) 13... Bxf3 14. gxf3 f5 {Hoping for ...f4.} 15. Qc3 f4 16. Bd2 Qe6 17. b4 b6 18. bxc5 bxc5 (18... Nxc5 $11 19. d4 Nd7) 19. Ke2 a4 20. Rab1 Kf7 21. h4 g6 22. Rb7 Rhc8 23. Rhb1 Ra6 24. R1b5 Ke7 25. Qb2 Qc6 26. Ba5 Kd6 27. Qc3 Ke7 28. Rb1 h6 29. R7b5 Rca8 {...Qd6 is the strong threat.} 30. Rxc5 (30. Qe1 $11) 30... Nxc5 $17 (30... Qxc5 $2 {too greedy.} 31. Bb4 $18) 31. Bb4 Kf7 ({Better is} 31... Kd7 $17 32. Bxc5 Rb6 $1 {[%mdl 512]}) 32. Bxc5 $11 Ra5 33. Qc4+ Qe6 34. Rb7 Qxc4 35. Rxc7+ Ke8 (35... Ke6 $11 {keeps the balance.} 36. dxc4 R5a6) 36. dxc4 $16 {[%mdl 4096] Endgame KRR-KRB} R5a6 37. Re7+ Kd8 38. Rxe5 Rc6 39. c3 Rb8 (39... Rac8 $16 40. Bb4 Rxc4) 40. Bb4 $1 $18 Rb7 41. Rd5+ Rd7 42. Kd3 h5 (42... Ke8 $142 43. Kd4 Rd8) 43. e5 g5 44. hxg5 Rxd5+ $2 (44... h4) 45. cxd5 {[%cal Bc4d5,Bd5d6][%mdl 32] KR-KB} Rg6 46. Ke4 h4 47. Kxf4 $2 (47. Kf5 Rg7 48. Kg4 (48. Kxf4 h3 $16)) 47... h3 {[#] Threatens to win with ...h2.} 48. Kg3 $1 Rxg5+ 49. Kxh3 Rxe5 {[#]} 50. d6 $1 Re2 $2 (50... Rg5 51. f4 Rg1) 51. Kg2 $2 (51. Kg3 Kd7 52. f4) 51... Kd7 52. f4 Ke6 $2 (52... Re8 53. Kf3 Rb8) 53. Kg3 Re1 54. Kf3 $2 (54. c4 Rg1+ 55. Kf3) 54... Rc1 $2 (54... Rb1 55. Ke4 Kd7) 55. Ke2 Rc2+ 56. Ke3 Rc1 57. Kd2 Rh1 {[#]} 58. f5+ $1 {[%cal Bf4f5,Bf5f6,Bf6f7][%mdl 32]} Kd7 (58... Kxf5 59. d7) 59. Ke3 Rh4 60. f3 $2 (60. f4 {mates} Rh8 61. c4 Rc8 62. c5 Rf8 63. Ke4 Kc6 64. Ke5 Re8+ 65. Kf6) 60... Kd8 $2 (60... Rc4 $18 61. f4 Rc8) 61. f4 Rh1 62. Kd4 Kd7 63. f6 Ke6 64. Kc5 Kd7 65. Kd5 {White mates.} Rh5+ 66. Ke4 Ke6 {[#]} 67. f7 $1 {Precision: White = 50%, Black = 35%.} 1-0

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.29"]
[Round "11"]
[White "Caruana, Fabiano"]
[Black "Onischuk, Alexander"]
[Result "1-0"]
[ECO "C78"]
[WhiteElo "2804"]
[BlackElo "2672"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,57,25,18,25,25,25,66,16,17,11,50,64,97,96,88,72,63,61,52,44,55,53,67,45,85,59,74,91,78,56,120,120,111,110,137,177,158,145,226,244]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bb7 7. d3 Be7 8. Re1 O-O 9. a4 Re8 10. Nbd2 Bf8 11. Nf1 {C88: Closed Ruy Lopez: Anti-Marshall Systems} (11. c3 Na5 12. Bc2 c5 13. d4 exd4 14. cxd4 d5 15. e5 Ne4 16. axb5 axb5 17. Nxe4 dxe4 18. Rxe4 Nb3 19. Rxa8 Bxa8 20. Ng5 Nxc1 21. Qh5 h6 22. Qxf7+ Kh8 23. Rg4 Qa5 24. h4 {1-0 (24) Anand,V (2762)-Svidler,P (2757) Moscow 2016}) 11... Na5 12. Ba2 d5 {[%cal Rd5e4]} 13. axb5 {White is slightly better.} axb5 14. exd5 Bxd5 15. Bg5 Bxa2 $146 ({Predecessor:} 15... Nc6 16. Bxf6 gxf6 17. Bxd5 Qxd5 18. Qe2 Qe6 {1-0 (98) Achermann,J (2203)-Donzellotti,G (2213) ICCF email 2010}) 16. Rxa2 e4 17. Bxf6 Qxf6 18. Rxe4 Rxe4 19. dxe4 {[%cal Bd3e4,Be4e5][%mdl 32] Strongly threatening Ne3.} Rd8 20. Qe2 Nc4 21. c3 Bc5 22. Ra1 g6 23. e5 $36 {[%mdl 2048] White is in control.} Qc6 24. Ng3 Re8 ({Black should play} 24... Qd5 $14) 25. b3 $16 Nb6 26. Ra5 Bf8 27. Qxb5 {White is clearly better.} Qxb5 28. Rxb5 Ra8 (28... Nd7 $16 29. Rd5 Nb6) 29. h4 {Precision: White = 64%, Black = 24%.} 1-0

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.29"]
[Round "11"]
[White "So, Wesley"]
[Black "Nakamura, Hikaru"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "2786"]
[BlackElo "2787"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,60,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. e4 d5 6. e5 Ne4 7. Bd3 c5 8. Nf3 {E32: Nimzo-Indian: Classical (4 Qc2): 4...0-0} cxd4 9. Nxd4 Nd7 10. Bf4 Qh4 11. g3 Qh5 12. O-O {LiveBook: 45 Games. The position is equal.} g5 13. cxd5 Bxc3 (13... Nxc3 14. dxe6 gxf4 15. exd7 Bxd7 16. bxc3 {½-½ (44) Li,C (2720)-Ni,H (2674) China 2017}) 14. bxc3 exd5 15. Bxe4 dxe4 16. e6 $146 gxf4 17. exd7 Bxd7 18. Qxe4 fxg3 19. fxg3 b6 20. Nf5 {[#] And now Ne7+ would win.} Rae8 21. Qd5 Bxf5 $1 ({But not} 21... Re2 $2 {[#]} 22. Ne7+ $1 {[%mdl 512]} Rxe7 23. Qxh5 $18) 22. Rxf5 Qh6 23. Raf1 $40 {[%cal Rf5f7][%mdl 128] Black needs to defend precisely.} Qe3+ 24. R1f2 {[%cal Rf5f7]} Qe1+ 25. Kg2 {aiming for Rg5+.} Qe4+ 26. Kh3 Qxd5 27. Rxd5 Re7 28. Rg5+ Kh8 29. a4 Re3 30. Rgf5 Kg7 {Precision: White = 84%, Black = 100%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.29"]
[Round "11"]
[White "Shankland, Samuel"]
[Black "Liang, Awonder"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2671"]
[BlackElo "2552"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,85,17,20,22,45,31,44,35,50,23,66,52,74,65,59,66,73,52,63,51,61,71,82,68,171,148,186,186,195,190,202,210,194,200,287,287,341,334,317,312,308,309,417,316,332,327,338,343,356,341,335,353,354,341,325,318,311,311,461,468,431,377,361,356,334,307,377,389,372,348,490,487,544,538]} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Bg4 7. Qb3 e5 {LiveBook: 6 Games. B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack} 8. h3 {[%cal Bh2h3,Bh3g4,Bg4g5][%mdl 32]} exf4 9. hxg4 Qe7+ {White is slightly better.} 10. Kf1 O-O-O $146 ({Predecessor:} 10... Ne4 11. Qc2 O-O-O 12. Nd2 Re8 13. Bxe4 dxe4 14. Re1 f5 15. gxf5 {1-0 (25) Demchenko,A (2671)-Yurtseven,M (2415) Lisbon 2018}) 11. Nd2 {Black must now prevent Re1.} g6 12. Re1 Qc7 13. g5 Nh5 {[%cal Bf6h5,Bh5g7,Bg7e6][%mdl 32]} 14. Be2 $36 {[%mdl 2048] White has good play.} Ng7 15. Ngf3 Ne6 16. Bb5 Bg7 17. Qa4 Rd6 18. Nb3 {[%cal Bd2b3,Bb3c1,Bc1d3,Bd3b4][%mdl 32]} b6 (18... a6 $14) 19. Nc1 Nb8 20. Nd3 Kb7 {[#] Black wants to play ...a6.} 21. Nb4 $1 Qd8 22. Ne5 Qc7 23. Qb3 Rhd8 (23... Bxe5 $142 24. Rxe5 (24. Nxd5 Qd8 $18) 24... Qd8 25. Nxd5 a6) 24. Rxh7 $18 a6 25. Bd3 Ka7 26. Qa4 {[%cal Rd3a6]} a5 27. Bb5 Kb7 28. Nbd3 Rg8 29. Nf3 Rh8 30. Rxh8 Bxh8 31. a3 Nc6 32. Bxc6+ Rxc6 33. Nde5 Bxe5 34. Nxe5 Rd6 35. Qe8 Rd8 (35... Nxg5 $142 36. Nxf7 Qc4+ 37. Kg1 Nxf7) 36. Qxf7 Nxg5 37. Qxc7+ Kxc7 38. Nxg6 {KRN-KRN} f3 39. Nf4 Kc6 40. gxf3 Nxf3 41. Re6+ Kb5 (41... Rd6 {was necessary.} 42. Rxd6+ Kxd6) 42. Ke2 Ng1+ 43. Kd3 {Precision: White = 90%, Black = 40%.} 1-0

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.29"]
[Round "11"]
[White "Xiong, Jeffery"]
[Black "Robson, Ray"]
[Result "0-1"]
[ECO "C54"]
[WhiteElo "2665"]
[BlackElo "2660"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,74,8,24,30,22,37,0,34,22,12,17,8,0,1,4,29,16,106,92,133,86,119,-24,-18,-11,-6,-26,-8,-43,0,0,0,0,0,0,0,0,0,0,0,-56,-65,-66,-68,-65,-69,-68,-58,-58,-58,-58,-68,-65,-73,-929,-920,-907,-880]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. a4 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} (6. O-O O-O 7. Re1 Ne7 8. d4 Bb6 9. a4 c6 10. dxe5 Ng4 11. Rf1 dxe5 12. Qxd8 Bxd8 13. h3 Nf6 14. Nxe5 Nxe4 15. Re1 {½-½ (42) Vachier Lagrave,M (2789)-Carlsen,M (2837) London 2017}) 6... a5 7. Bg5 h6 8. Bh4 g5 9. Bg3 O-O 10. O-O {LiveBook: 13 Games} Ba7 11. Na3 Bg4 12. Kh1 $146 ({Predecessor:} 12. h3 Bh5 13. Bh2 Qd7 14. Nc2 Kh7 15. Ne3 g4 16. hxg4 Nxg4 {½-½ (26) Cvak,R (2337)-Mislin,R (2304) ICCF email 2017}) 12... Kg7 13. Nc2 d5 14. exd5 Nxd5 15. d4 exd4 16. cxd4 Nce7 17. Ne3 Nxe3 (17... Bh5 $11) 18. fxe3 $16 Nf5 19. Qb3 {aiming for Ne5.} f6 {[#]} 20. Rae1 ({Better is} 20. Ne5 $1 $16 {[%cal Re5g4]} Nxg3+ 21. hxg3 fxe5 22. Rxf8 Qxf8 23. Qxb7) 20... Nxg3+ $11 21. hxg3 Bb6 22. Nd2 {[%cal Bf3d2,Bd2e4,Be4g3,Bg3f5][%mdl 32]} h5 23. Bd3 h4 24. gxh4 {Black must now prevent Kg1.} Rh8 25. Kg1 {Strongly threatening hxg5.} Rxh4 26. Ne4 Rh6 27. Bb1 Qe7 28. Ng3 Qd6 29. Rf3 (29. Kf2 $11) 29... Kh8 $36 {[%mdl 2048] Black has some pressure.} 30. Nf5 Qh2+ 31. Kf2 Bxf3 32. Kxf3 {[#]} g4+ $1 {[%cal Bg5g4,Bg4g3][%mdl 32]} 33. Kf2 {[#]} (33. Kxg4 Rg6+) 33... g3+ $1 34. Kf3 (34. Nxg3 Rg8) 34... Rh7 $1 35. Qe6 Qh5+ 36. Kxg3 $2 {[%mdl 8192] [#]} (36. Kf4 $17 Rf8 37. Be4) 36... Rg8+ $1 $19 37. Kf2 {[#]} Rxg2+ $1 {[%mdl 512] Precision: White = 47%, Black = 44%.} 0-1

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.29"]
[Round "11"]
[White "Akobian, Varuzhan"]
[Black "Zherebukh, Yaroslav"]
[Result "1/2-1/2"]
[ECO "D83"]
[WhiteElo "2647"]
[BlackElo "2640"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,63,0,17,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 O-O 6. Rc1 Be6 {D83: Grünfeld: 4 Bf4 Bg7 5 e3 0-0} 7. cxd5 Nxd5 8. Nxd5 Qxd5 9. b3 Qa5+ 10. Qd2 Qxd2+ {LiveBook: 9 Games. The position is equal.} 11. Kxd2 c6 12. Nf3 Bd5 13. Bc4 {And now Bxd5 would win.} Bxf3 14. gxf3 {[#]} e6 $146 15. b4 a6 16. a4 Nd7 17. Bd6 Rfd8 18. Ke2 Bf8 19. Bxf8 Kxf8 20. a5 Nf6 21. f4 Rd7 22. Kf3 Rad8 23. Rhg1 Ke7 24. Bb3 h5 25. h3 Rd6 26. Rg5 R8d7 27. Re5 Rd8 28. Rec5 R6d7 29. Re5 Rd6 30. Rec5 R6d7 31. Re5 Rd6 32. Rec5 {Precision: White = 80%, Black = 100%.} 1/2-1/2

[Event "US-ch Open 2018"]
[Site "Saint Louis"]
[Date "2018.04.29"]
[Round "11"]
[White "Izoria, Zviad"]
[Black "Lenderman, Aleksandr"]
[Result "1/2-1/2"]
[ECO "C43"]
[WhiteElo "2599"]
[BlackElo "2599"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2018.??.??"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,60,8,0,1,0,18,7,7,14,14,1,14,10,7,5,5,10,7,5,9,0,0,0,2,8,18,18,18,18,31,8,10,10,14,15,19,16,17,16,17,24,21,20,53,48,72]} 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 Nc6 5. d5 Nf6 (5... Nc5 6. dxc6 e4 7. cxb7 Bxb7 8. Be2 exf3 9. Bxf3 Bxf3 10. Qxf3 Bd6 11. Bg5 Qb8 12. Nc3 Ne6 13. h4 c6 14. O-O-O O-O 15. Kb1 a5 {0-1 (34) Mamedyarov,S (2660)-Bruzon Batista,L (2637) Pamplona 2004}) 6. dxc6 {C43: Petroff Defence: 3 d4} e4 7. cxb7 Bxb7 8. Be2 exf3 9. Bxf3 {LiveBook: 5 Games} Bxf3 10. Qxf3 Be7 11. O-O O-O 12. b3 d5 $146 ({Predecessor:} 12... d6 13. Bb2 {0-1 (63) Ibrahim,I (2082)-Aryanejad,H (2288) Abu Dhabi 2005}) 13. Bb2 c6 14. Nd2 Nd7 15. Rfe1 Bf6 16. Bxf6 Nxf6 17. Qc3 Qd6 18. Re2 Rfe8 19. Rae1 Rxe2 20. Rxe2 a5 21. a4 h6 22. g3 c5 23. Qd3 Qc7 24. Nb1 c4 25. bxc4 dxc4 26. Qf3 Rb8 27. Nc3 Qc5 28. Kg2 Rd8 29. h3 Kf8 30. Re1 Kg8 {Precision: White = 69%, Black = 54%.} 1/2-1/2

