[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.13"]
[Round "1.1"]
[White "Adamson, Robby"]
[Black "Sarkar, Justin"]
[Result "1/2-1/2"]
[ECO "B22"]
[WhiteElo "2239"]
[BlackElo "2366"]
[Annotator "TA"]
[PlyCount "41"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,41,26,45,25,35,30,16,13,13,9,9,9,15,11,35,27,27,27,28,31,34,38,30,28,26,26,31,16,23,0]} 1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 e6 6. Na3 a6 7. Nc4 {[%cal Ba3c4,Bc4e3,Be3c2][%mdl 32]} Nbd7 8. a4 {B22: Sicilian: 2 c3.} cxd4 9. Qxd4 Bc5 10. Qxd5 {The position is equal.} exd5 11. Ne3 O-O 12. Bd3 Re8 13. O-O Ne5 14. Nxe5 Rxe5 15. Nc2 Bd7 16. Bf4 Ree8 {[#]} 17. Be3 $146 ({Predecessor:} 17. a5 Ng4 18. Rad1 Ne5 19. Be2 Ba4 20. Rd2 Nc4 21. Bxc4 dxc4 22. Ne3 Re4 23. Nd5 {1-0 (46) Gavrilov,A (2489)-Filipenko,A (2354) Dagomys 2010}) 17... Bxe3 18. Nxe3 a5 19. Rfd1 Bc6 20. Be2 Re4 21. Bf3 {Weighted Error Value: White=0.03/Black=0.03} 1/2-1/2

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.13"]
[Round "1.2"]
[White "Mishra, Abhimanyu"]
[Black "Chiu, Isaac"]
[Result "1-0"]
[ECO "A42"]
[WhiteElo "2354"]
[BlackElo "2209"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,81,22,22,20,18,29,20,48,43,41,42,35,33,27,31,26,30,36,7,11,-35,-35,-26,-28,-37,-17,-33,16,16,10,16,13,10,13,9,8,-10,-14,-39,-35,-44,20,22,25,27,33,0,295,268,278,277,418,412,599,384,615,630,2694,2482,1670,746,29988,29989,29990,29991,29991,29992,29992,29993]} 1. d4 g6 2. e4 Bg7 3. c4 d6 4. Nc3 e5 5. Nf3 Nc6 6. Be3 Bg4 7. d5 Nd4 8. Be2 Nxe2 {A42: Modern Defence: Averbakh Variation.} 9. Qxe2 Ne7 10. O-O-O {[#]} h6 $146 {The position is equal.} ({Predecessor:} 10... O-O 11. h3 Bd7 12. Qd2 f5 13. Qc2 f4 14. Bd2 c5 15. dxc6 bxc6 16. Ne2 Qc7 {0-1 (38) Vucinic,G-Jovic,C (2132) Novi Becej 2007}) 11. h3 Bd7 12. g4 a6 13. c5 dxc5 14. Bxc5 Nc8 15. Nd2 b6 {[%cal Bb7b6,Bb6b5][%mdl 32]} 16. Be3 Nd6 17. Nc4 b5 18. Nxd6+ cxd6 19. Qd2 Bf6 20. Kb1 Bg5 21. f4 exf4 22. Bd4 Bf6 23. Qxf4 {[%mdl 64] Double Attack} Bxd4 24. Rxd4 {Threatens to win with e5.} Qe7 25. Ne2 {[%cal Bc3e2,Be2d4,Bd4f3][%mdl 32]} Rc8 26. Rd3 h5 {Hoping for ...hxg4.} 27. g5 h4 ({Better is} 27... a5 $15) 28. Nd4 $11 Rc4 29. b3 Rc5 30. Nf3 Rh5 $2 {[%mdl 8192]} (30... a5 $11 {and Black is okay.}) 31. Kb2 Kf8 {[#]} 32. Re1 $1 Kg8 (32... Kg7 {keeps fighting.} 33. e5 dxe5) 33. e5 $18 dxe5 (33... Qf8 $142 34. e6 (34. Nxh4 Qg7 $11) 34... fxe6 35. Qxf8+ Kxf8) 34. Rxe5 Qd8 (34... Qf8 35. d6 (35. Nxh4 Rc8 $11) 35... Rc8) 35. d6 Rc6 36. Re7 Bf5 {[#]} 37. d7 $1 {[%mdl 512]} Rc2+ (37... Re6 38. Rxe6) 38. Kxc2 {White mates.} Bxd3+ 39. Kxd3 Qxe7 40. Qb8+ Kh7 41. d8=Q {[%csl Gb8][%cal Rd8h8] Weighted Error Value: White=0.13/Black=0.50} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.13"]
[Round "1.3"]
[White "Park, Evan"]
[Black "Liang, Jason"]
[Result "1/2-1/2"]
[ECO "B15"]
[WhiteElo "2207"]
[BlackElo "2342"]
[Annotator "TA"]
[PlyCount "115"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,115,18,21,16,32,22,29,14,16,9,18,12,18,20,16,16,19,10,11,6,9,10,12,14,22,20,28,15,31,15,12,10,12,0,27,1,19,22,17,29,25,8,8,8,74,74,74,74,74,74,74,74,74,74,74,74,74,71,96,22,12825,12825,5716,5628,1758,1633,1055,873,6821,31,31,31,31,31,31,37,38,38,39,0,0,0,0,0,2303,0,14,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. c3 Bd6 7. Bd3 O-O 8. Ne2 Re8 9. O-O {B15: Caro-Kann: 3 Nc3: 3...g6 and 3...dxe4 4 Nxe4 Nf6 5 Nxf6+ exf6.} Nd7 {[%cal Bb8d7,Bd7f8,Bf8g6,Bg6f4,Bf4d3][%mdl 32]} 10. Bf4 Nf8 11. Qd2 {White has an edge. seems to push 11.Bxd6 aside.} Ng6 {aiming for ...Rxe2!} 12. Bg3 Be6 13. Rfe1 Qc7 14. Bxd6 Qxd6 15. Ng3 Nf4 16. Ne4 Qc7 17. Nc5 Nxd3 {[#]} 18. Qxd3 $146 ({Predecessor:} 18. Nxe6 fxe6 19. Qxd3 e5 20. dxe5 Rxe5 21. Rxe5 Qxe5 22. Qc4+ Kh8 23. Qf7 Re8 24. h3 Qe7 25. Qxe7 Rxe7 26. Rd1 Kg8 27. Kf1 {½-½ (26) Movsesian,S (2645)-Riazantsev,A (2653) Wolfhagen 2019}) 18... b6 19. Nxe6 fxe6 20. Re3 Qd6 21. Rae1 Qd5 22. c4 Qd7 23. Qe2 {[%cal Re3e6]} Rad8 24. h3 {[%cal Re3e6]} h6 25. g3 Qxd4 26. Rxe6 Rxe6 27. Qxe6+ $11 {[%mdl 4160] Endgame Double Attack. KQR-KQR} Kh7 28. Qxc6 Qxb2 29. Re7 Qxa2 (29... Kh8 $11 {keeps the balance.}) 30. Qxf6 $1 $16 {[%csl Ge7][%cal Rf6g7]} Rg8 31. Qd4 Qa3 32. Rd7 Kh8 33. Kg2 (33. Kh2 {looks sharper.} Qa4 34. h4 Kh7 35. Re7 Kh8 36. Kh3) 33... Qa4 34. Rc7 Qa5 35. h4 Qa2 36. g4 Qa5 37. g5 (37. Re7 $16) 37... hxg5 $2 {[%mdl 8192] [#]} (37... Qf5 $11) 38. h5 $1 $18 {[%cal Rh5h6]} Qf5 {[#]} 39. h6 $1 {[%cal Rc7g7]} Qg6 40. hxg7+ Kh7 41. Rxa7 Qf5 42. Ra1 $2 (42. Re7 $18 {Hoping for Re5.} g4 43. Re5 Qf3+ 44. Kg1 Rxg7 45. Rh5+ Kg6 46. Rh4) 42... Rxg7 $14 43. Rh1+ Kg8 44. Qd8+ Kf7 45. Qc7+ Kg8 46. Qb8+ Kf7 47. Qb7+ (47. Rh3 {feels hotter.} Qg4+ 48. Rg3 Qe4+ 49. Rf3+ Kg6 50. Qxb6+ Kh5 51. Qe3) 47... Kg8 48. Qa8+ (48. Qc6 {keeps more tension.} Qg4+ 49. Kf1 Qd1+ 50. Kg2 Qg4+) 48... Kf7 49. Rh3 g4 {[%mdl 8192]} (49... Qg4+ $11 50. Kh2 Qe6) 50. Re3 $2 (50. Qa7+ $18 Kg8 51. Qa8+ Kf7 52. Qb7+ Kg8 53. Qb8+ Kf7 54. Qc7+ Kg8 55. Qb8+ Kf7 56. Re3) 50... Qd7 {The position is equal.} 51. Ra3 Kf6 52. Qf8+ (52. Ra6 {is interesting.} Qd6 53. c5 Qxc5 54. Ra4 Kg5 55. Qd8+) 52... Kg6 53. Re3 Qc6+ 54. Kg1 {And now Re5 would win.} Qxc4 55. Qd6+ Kh7 56. Qh2+ Kg6 57. Qd6+ Kh7 58. Qh2+ {Weighted Error Value: White=0.45/Black=0.07} 1/2-1/2

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.13"]
[Round "1.4"]
[White "Sinha, Sahil"]
[Black "Wu, Derek"]
[Result "1-0"]
[ECO "D41"]
[WhiteElo "2324"]
[BlackElo "2198"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,61,25,10,10,0,0,0,58,73,68,67,589,589,590,590,857,741,733,681,649,546,531,546,769,699,706,584,668,614,858,847,763,638,971,876,1347,1022]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. cxd5 Nxd5 6. e4 Nxc3 7. bxc3 cxd4 8. cxd4 Bb4+ 9. Bd2 Bxd2+ 10. Qxd2 O-O 11. Bc4 Nd7 12. O-O b6 13. Rfe1 Bb7 14. Rad1 Rc8 {D41: Queen's Gambit Declined: Semi-Tarrasch with 5 cxd5.} 15. Bb3 Re8 16. Qe3 {[#]} b5 $146 ({Black should play} 16... h6 $11) ({Predecessor:} 16... Nf6 17. Nd2 Qe7 18. f3 Qb4 19. Nf1 Red8 20. Qd2 Qxd2 21. Rxd2 b5 22. Ne3 a5 23. Rb1 Rc3 24. Nd1 Rc7 25. Ne3 b4 26. Bc4 Rdc8 27. Rc1 Kf8 28. Rdc2 Ke7 {½-½ (28) Sarana,A (2468)-Schroeder,J (2543) Moscow 2017}) 17. d5 $14 exd5 {[%cal Re8e4]} 18. Bxd5 Rc7 {[%mdl 8192] [#]} (18... Bxd5 $14 19. Rxd5 Qc7) 19. Bxf7+ $1 $18 {[%mdl 512] White is clearly winning.} Kxf7 {[#]} 20. Ng5+ $1 {[%mdl 64] Double Attack} Kg6 21. Rd6+ Qf6 22. Rxf6+ gxf6 {[#]} 23. Qf4 {Threatening mate with Qf5+.} Rc5 24. Nf3 Ne5 25. Nd4 Bc8 26. h3 Nc4 27. Kh2 a5 28. Qg3+ Kf7 {[#]} 29. Nxb5 $1 {[%mdl 512]} Rg8 (29... Rxb5 30. Qc7+) 30. Nd6+ Kf8 31. Qf4 {[%cal Rf4f6] White took control after the opening.  Weighted Error Value: White=0.33/Black=1.09} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.13"]
[Round "1.5"]
[White "Oberoi, Shelev"]
[Black "Kumar, Nikhil"]
[Result "1-0"]
[ECO "C45"]
[WhiteElo "2161"]
[BlackElo "2322"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,79,0,0,-2,-6,-8,-2,0,0,0,16,7,7,7,11,7,14,0,0,-12,81,55,137,137,137,153,360,350,358,356,346,357,356,357,356,353,351,343,397,343,308,0,396,399,437,406,424,426,461,461,472,389,495,495,708,704,762,711,762,752,752,739,716,693]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Bd3 d5 7. exd5 cxd5 8. O-O Be7 9. b3 O-O 10. Bb2 {C45: Scotch Game.} Bg4 11. Be2 {[#]} Bxe2 $146 ({Predecessor:} 11... Bf5 12. Nd2 c5 13. Bf3 Rb8 14. Be5 Rb6 15. c4 d4 16. Bxf6 Bxf6 17. Ne4 Be5 {0-1 (44) Sunal,J (1740)-Voros,G (2136) Slovakia 2017}) 12. Qxe2 {The position is equal.} Re8 13. Qd3 Qd7 14. Nd2 {[%cal Bb1d2,Bd2f3,Bf3d4,Bd4e6][%mdl 32]} Rad8 15. Rfe1 h6 16. Rad1 Qc6 17. Nf3 Ne4 18. Nd4 Qf6 (18... Qb6 $11 {remains equal.}) 19. f3 $16 Nc5 {[#]} (19... Ng5 $1 $14) 20. Qb5 $1 a6 {[#]} 21. Qc6 Rf8 $2 (21... Nd7 $16 22. Qxc7 Nf8) 22. Ba3 $18 ({Not} 22. Qxc7 Bd6 $16) 22... Ne6 23. Nxe6 Bxa3 24. Nxd8 Rxd8 25. Qxf6 gxf6 {[%mdl 4096] Endgame KRR-KRB} 26. Rd3 c6 27. Kf1 a5 28. Rd4 Bc5 29. Rd3 Ba3 $1 {[#]} 30. Re4 $3 {[%mdl 512]} Ra8 (30... Bb4 31. c4) 31. Rg4+ Kf8 32. c4 dxc4 33. Rxc4 c5 34. Rd7 Re8 35. Re4 {White is clearly winning.} Rxe4 (35... Re6 $142 36. Rxe6 fxe6) 36. fxe4 Kg7 37. Ke2 Kg6 38. Rd5 Bb4 39. Kd3 h5 40. Kc4 {Weighted Error Value: White=0.19/Black=0.26} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.13"]
[Round "1.6"]
[White "Posthuma, Joshua"]
[Black "Kumar, Naman"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2307"]
[BlackElo "2158"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,77,1,0,-12,-15,41,52,56,52,218,223,237,237,233,218,228,228,265,262,259,268,269,266,279,254,291,285,277,273,274,268,291,302,313,308,356,363,347,290,298,296,325,273,347,337,405,320,322,300,312,288,398,372,410,406,451,456,581,575,528,529,843,843,810,777,818,806]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Bb4+ 5. Nd2 O-O 6. Ngf3 dxc4 7. Qc2 a5 {E04: Open Catalan: 5 Nf3.} 8. O-O b6 (8... b5 $1 $11) 9. Nxc4 $14 Bb7 {[#] White is slightly better.} 10. Bg5 $146 ({Predecessor:} 10. Rd1 Be4 11. Qb3 Qd5 12. Nh4 Bxg2 13. Nxg2 b5 14. Ne5 Qxb3 15. axb3 Rd8 16. Bg5 {½-½ (50) Lopez Mulet,I (2305)-Santos Latasa,J (2524) Linares 2017}) 10... Be4 $2 {[#]} (10... Be7 $14) 11. Qxe4 $3 $18 {[%mdl 512]} Nxe4 12. Bxd8 Rxd8 {[#]} 13. Ng5 $1 {[%mdl 512]} Nxg5 14. Bxa8 {And now h4 would win.} f6 15. Rfd1 Nf7 16. Rac1 Kf8 17. e3 Rd7 18. Bf3 Nd8 19. a3 Be7 20. h4 Nf7 21. Kg2 Nd6 22. Nd2 f5 23. Rc2 Bd8 24. Rdc1 g6 25. Ba8 Nf7 26. Nf3 h6 27. Bb7 Re7 28. Bc6 e5 29. Bd5 e4 30. Nd2 Nd6 31. b4 a4 32. Nb1 Kg7 33. Nc3 b5 34. Ba2 {White is clearly winning.} Na6 35. Nd5 Rd7 36. Nf4 Kh7 37. Ne6 Kh8 38. Rc6 Nb8 39. Nxd8 {Black did not feel at home in the position after the opening.  Weighted Error Value: White=0.09/Black=0.40} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.13"]
[Round "1.7"]
[White "Resika, Nathan"]
[Black "Wang, Tianqi"]
[Result "0-1"]
[ECO "A37"]
[WhiteElo "2155"]
[BlackElo "2307"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,70,6,0,0,2,0,19,19,19,17,20,15,22,29,22,33,16,21,33,25,42,-10,-10,-88,-39,-39,-39,-87,-19,-15,-18,-51,-29,-25,-31,-22,-22,-23,0,-46,-44,-346,27,-57,-20,-326,-352,-312,-323,-1011,-1007,-1027,-993]} 1. Nf3 c5 2. c4 g6 3. g3 Bg7 4. Nc3 Nc6 5. Bg2 e5 6. O-O d6 7. a3 a5 8. d3 Nge7 9. Ne1 Be6 10. Nc2 d5 11. cxd5 {A37: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3.} Nxd5 12. Ne3 {[%cal Re3d5]} Nde7 13. Nc4 {The position is equal.} O-O 14. Bg5 f6 15. Be3 b6 16. Qa4 Qc7 17. f4 Rab8 18. fxe5 f5 19. Bf4 h6 {[#]} 20. e4 $146 (20. h4 $1 $14) ({Predecessor:} 20. h4 Nd4 21. e3 Ndc6 22. Rad1 Rfd8 23. Nb5 Qd7 24. d4 cxd4 25. exd4 Na7 26. d5 Nxd5 27. Bxd5 Bxd5 {½-½ (68) Forster,R (2458)-Jovanovic,Z (2581) Porto Carras 2011}) 20... fxe4 21. dxe4 (21. Bxe4 $11 {remains equal.} g5 22. Bd2) 21... g5 22. Be3 Nxe5 23. Nd5 Bxd5 (23... Nxd5 $17 24. exd5 Bd7) 24. exd5 $11 Nf5 {Threatens to win with ...b5.} 25. Bd2 Ng4 26. Bc3 Bxc3 27. bxc3 {Black must now prevent Qc2.} Nxg3 {( -> ...Ne2+)} 28. d6 Ne2+ {[%mdl 64] [#] Double Attack} (28... Rxf1+ $2 29. Rxf1 Ne2+ 30. Kh1 $18) 29. Kh1 Qg7 $40 {[%mdl 128] Black attacks.} 30. Qc2 {[%mdl 8192]} (30. Rae1 $1 $15 Nf2+ 31. Rxf2 Rxf2 32. Qd1 Nxc3 33. Qd3) 30... Nf4 $2 ({Inferior is} 30... Nxc3 31. h3 $16) ({Black should play} 30... Nf2+ $19 31. Rxf2 Rxf2) 31. Qd1 (31. Rae1 $11 Kh8 32. Bf3) 31... Ne5 ({Don't go for} 31... Qxc3 $2 32. Rc1 $18) 32. Rxf4 $4 {[%mdl 8192]} Rxf4 $19 ({Resist} 32... gxf4 33. Qd5+ Nf7 34. d7 $19) 33. Qd5+ Nf7 {[%mdl 64] [#] Discovered Attack} 34. Re1 $2 (34. Qd3) 34... Qxc3 {[%mdl 64] Double Attack} 35. Nd2 Rd4 {[%mdl 64] Double Attack.  Weighted Error Value: White=0.70/Black=0.35} 0-1

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.13"]
[Round "1.8"]
[White "Mardov, Dimitar"]
[Black "Eckert, Doug"]
[Result "1/2-1/2"]
[ECO "C55"]
[WhiteElo "2265"]
[BlackElo "2151"]
[Annotator "TA"]
[PlyCount "122"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,122,35,35,33,35,30,28,29,29,25,26,29,27,33,29,22,6,34,43,54,50,96,75,101,79,76,42,60,36,103,96,106,78,86,60,78,78,79,62,77,45,45,45,47,20,22,18,23,12,8,8,41,9,10,0,0,0,5,12,20,20,22,0,61,0,0,0,0,0,0,0,272,254,245,158,161,174,164,137,157,124,242,242,220,260,259,2,20,0,6,8,7,5,8,5,56,54,137,-197,-171,-149,-24,-32,0,-981,-978,-905,0,0,0,-901,-887,-29999,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. O-O d6 6. c3 g5 $1 {[%mdl 4] is currently scoring better than 6...g6. C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack.} 7. Nbd2 Bg7 8. a4 O-O {White has an edge.} 9. h3 Ne7 10. Re1 Ng6 11. Nf1 c6 {[#]} 12. Bb3 $146 ({Predecessor:} 12. Qc2 d5 13. Bb3 Re8 14. Ng3 Qc7 15. Be3 Be6 16. Rad1 a5 17. Nd2 Rad8 18. d4 dxe4 19. Bxe6 Rxe6 20. Ngxe4 Nxe4 21. Nxe4 exd4 22. cxd4 {1-0 (66) Zhang,S (2033)-Park,E (2173) ICC INT 2020}) 12... d5 13. Bc2 dxe4 14. dxe4 Qxd1 15. Rxd1 g4 16. hxg4 Bxg4 17. N1h2 Be6 18. Be3 Rfe8 19. Rd2 Ng4 ({Black should try} 19... Bf8 $14) 20. Nxg4 $16 Bxg4 21. Nh2 Be6 22. Nf1 Kh7 23. Ng3 Bf6 24. Nf5 Bg5 $1 25. Bxg5 hxg5 26. Rad1 Nf4 27. g3 Nh5 28. Nd6 Re7 29. Kg2 Kg7 30. a5 a6 31. b4 Nf6 32. f3 Rd7 33. g4 Rad8 34. Rd3 Rh8 35. c4 Kf8 36. c5 Ng8 ({Black should play} 36... Ne8 $11) 37. Nc8 (37. R3d2 $14) 37... Rxd3 $11 38. Rxd3 Bxc8 39. Rd8+ {[%mdl 64] Double Attack} Kg7 40. Rxc8 {[%mdl 4096] Endgame aiming for Rc7. KRB-KRN} Ne7 $2 {[%mdl 8192]} (40... Nf6 $11 {and Black has nothing to worry.} 41. Rxh8 Kxh8) 41. Rc7 $1 $18 {[%csl LRb7,LRe7]} Ng6 42. Bb3 Nf4+ 43. Kg1 Ne2+ 44. Kf1 Nd4 45. Bxf7 Rh3 (45... Kf6 $16) 46. Bc4+ Kg6 47. Rxb7 Rxf3+ 48. Kg2 $2 (48. Ke1 $18) 48... Rf4 $11 49. Bxa6 Rxg4+ 50. Kf2 Rf4+ 51. Kg3 {Black must now prevent b5.} Rf3+ 52. Kg2 {Threatens to win with b5.} Rc3 (52... Ra3 $11) 53. Rb8 Kh5 ({Better is} 53... Rc2+ $14 54. Kf1 Kh5) 54. Bc8 $2 {[%mdl 8192]} (54. Rh8+ $16 {is necessary to keep the advantage.} Kg6 55. Bb7) 54... Kh4 $1 $19 {[%mdl 1024] ...Rc2+ is the strong threat. Black has strong compensation.} 55. Kf1 {[#]} g4 (55... Rc2 $1 $17 {[%cal Rc2d2] Strongly threatening ...Rd2.} 56. Ba6 Kg3) 56. Bd7 $1 $11 Rc1+ (56... Kg3 {seems wilder.} 57. Ke1 Rd3 58. Rd8 Kf4 59. Rf8+ Ke3) 57. Kg2 $2 {[%mdl 8192]} (57. Kf2 $11) 57... Rc2+ $19 58. Kf1 Rc1+ 59. Kg2 {And now Rh8+ would win.} Rc2+ 60. Kf1 {[#]} Kg3 $1 {[%cal Rc2c1]} 61. Bc8 Kh4 $2 {What a bad dream for White.  Weighted Error Value: White=0.47/Black=0.32} (61... Rc1# {mates}) 1/2-1/2

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.13"]
[Round "1.9"]
[White "Yanayt, Eugene"]
[Black "Perrine, Dalton"]
[Result "1/2-1/2"]
[ECO "A58"]
[WhiteElo "2100"]
[BlackElo "2247"]
[Annotator "TA"]
[PlyCount "40"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,40,54,63,66,66,64,57,72,59,68,50,73,34,46,11,8,8,9]} 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. Nf3 Bg7 8. g3 d6 9. Bg2 Nbd7 10. Rb1 Nb6 11. b3 Bb7 12. Nh4 O-O 13. O-O Ng4 {A58: Benko/Volga Gambit: Lines with 5 bxa6.} 14. Bb2 Bxc3 15. Bxc3 Rxa2 {White is slightly better.} 16. e4 Nf6 17. Ra1 Qa8 {[#]} 18. Rxa2 $146 ({Predecessor:} 18. Qc1 Rxa1 19. Bxa1 Qd8 20. Qg5 Bc8 21. Rc1 Nh5 22. Bc3 f6 23. Qe3 g5 24. Nf3 {1-0 (61) Ouerk,Y (2248)-Bressac,S (2250) Condom 2013}) 18... Qxa2 19. Qa1 Qxa1 20. Rxa1 Ra8 {Weighted Error Value: White=0.16/Black=0.05} 1/2-1/2

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.14"]
[Round "2.1"]
[White "Wang, Tianqi"]
[Black "Mishra, Abhimanyu"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2307"]
[BlackElo "2354"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,84,-17,-20,-10,-28,-20,-16,-14,-19,0,0,0,0,0,5,4,0,0,47,0,0,-56,-3,0,52,-42,-45,-94,-73,-144,-137,-136,-87,-91,-82,-108,-108,-130,-114,-150,-161,-129,-158,-256,-179,-169,-164,-146,-142,-218,-210,-216,-210,-432,-470,-588,-590,-585,-585,-585,-585,-585,-572,-569,-566,-556,-541,-708,-675,-29978,-29978,-29977,-29974,-29995,-29996]} 1. e4 c5 2. Nc3 d6 3. f4 g6 4. Nf3 Bg7 5. Bc4 Nc6 6. O-O e6 7. d4 {is currently scoring better than 7.d3. B23: Closed Sicilian: Lines without g3.} cxd4 8. Nb5 a6 9. Nbxd4 {The position is equal.} Nxd4 10. Nxd4 Nf6 11. f5 {[#]} gxf5 $146 ({Predecessor:} 11... e5 12. Nf3 gxf5 13. Ng5 O-O 14. exf5 d5 15. Bb3 Bd7 16. Qe1 Bb5 17. Rf3 e4 {1-0 (32) Lazov,T (2405)-Baenziger,F (2409) chess.com INT 2020}) 12. exf5 e5 13. Nf3 Qc7 {[#] Strongly threatening ...Qc5+.} 14. Bb3 h6 15. Qe1 Bd7 (15... Bxf5 {[#]} 16. Nxe5 $1 dxe5 17. Rxf5 $16) 16. Qg3 (16. Be3 $11) 16... Rh7 (16... Rg8 $15) 17. Be3 Bc6 ({Better is} 17... Bh8 $11) 18. Qh4 ({White should try} 18. Qf2 $1 $14) 18... O-O-O 19. Qb4 a5 20. Qb6 (20. Qh4 $142) 20... Ng4 $17 21. c3 Nxe3 22. Qxe3 d5 23. Rad1 f6 24. Nh4 h5 25. Kh1 Bh6 26. Qf3 {[%cal Rb3d5]} e4 27. Qe2 (27. Qf2 $17) 27... Bf4 28. h3 Bg3 29. Ng6 Qb6 $36 {[%mdl 2048] Threatens to win with ...a4. White is under strong pressure.} 30. Qc2 (30. Rd4 $17) 30... Qe3 $19 31. a4 Rhd7 32. Qd2 $2 (32. Rd4 {was worth a try.}) 32... d4 33. Qxe3 dxe3 34. Rde1 Bxe1 35. Rxe1 {Now Be6 and White clings on.} Rd2 36. Ne7+ Kd7 37. Nxc6 Kxc6 38. Rxe3 Rxb2 {KRR-KRB} 39. Bc4 Rdd2 40. Rg3 Rd1+ {Black mates.} 41. Kh2 Rbb1 {[%csl Gb1][%cal Rd1h1]} 42. Rg6 h4 {[%csl Gb1][%cal Rd1h1] Weighted Error Value: White=0.52/Black=0.09} 0-1

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.14"]
[Round "2.2"]
[White "Oberoi, Shelev"]
[Black "Sinha, Sahil"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2161"]
[BlackElo "2324"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,80,-7,-12,-8,-28,-17,-26,-12,-21,-23,-21,-26,-41,-52,-46,-52,-50,-47,-118,-108,-155,-155,-158,-149,-157,-141,-29986,-29987,-29988,-29981,-29981,-29982,-29989,-29990,-29990,-5895,-29986,-29987,-29989,-1575,-29989,-591,-5921,-5867,-5214,-5146,-29957,-11318,-5197,-6634,-29983,-29984,-29984,-29985,-29986,-29987]} 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. d4 cxd4 6. Bc4 Nb6 7. Bb3 d5 8. exd6 Qxd6 9. O-O Be6 10. Na3 dxc3 11. Nb5 Qxd1 12. Rxd1 Rc8 13. Bxe6 fxe6 14. Nxc3 {is the legacy move (14.bxc3).} h6 {B22: Sicilian: 2 c3.} 15. Be3 Nc4 16. Ne4 g5 {Black has an edge.} 17. Rac1 Nxe3 18. fxe3 Bg7 {[#]} 19. Nd4 $146 ({Predecessor:} 19. Nc5 Bxb2 20. Rc2 Na5 21. Rxb2 Rxc5 22. Nd4 Re5 23. Rb5 Rxb5 24. Nxb5 O-O 25. Rd7 {0-1 (47) Imanaliev,T (2395)-Chibukhchian,A (2310) Yerevan 1996}) 19... Bxd4 20. Rxd4 Rf8 21. Rb4 Rc7 22. h4 gxh4 $17 ({Much less strong is} 22... Nxb4 23. Rxc7 gxh4 24. Rxb7 $15) 23. Ra4 {[#]} Rd7 $1 24. Nc5 Rd2 25. Nxb7 {[#]} Rff2 $1 26. Rxc6 $4 {[%mdl 8192] This move loses the game for White.} (26. Rxh4 $17 Rxg2+ 27. Kh1 Rxb2 28. Rxh6 (28. Rxc6 $2 Rge2 $19)) 26... Rxg2+ 27. Kf1 Rdf2+ 28. Ke1 Rxb2 {[%cal Rg2g1][%mdl 64] Double Attack} 29. Kf1 h3 30. Rc8+ Kd7 (30... Kf7 $142 31. Nd6+ Kg7 32. Rb8 h2 33. Ne8+ Kg6 34. Rg4+ Kh5 35. Ng7+ Kxg4 36. Rb4+ Rxb4 37. Kxg2 Rb2+ {[%mdl 64] Double Attack} 38. Kh1 Kh3 39. Nxe6 Rb1#) 31. Rac4 Rxb7 {[%mdl 4096] Endgame KRR-KRR} 32. R8c5 Rb1+ 33. Rc1 Rxc1+ (33... Rbb2 $142 34. Rc7+ Ke8 35. R7c2 Rgxc2 36. Rxc2 Rxc2 37. Kg1 Rxa2 38. Kh1 a5 39. Kg1 a4 40. Kh1 Rb2 41. Kg1 a3 42. Kf1 a2 43. Kg1 a1=Q#) 34. Rxc1 $19 Rxa2 {( -> ...h2). KR-KR} 35. Kg1 a5 {[%cal Ba7a5,Ba5a4,Ba4a3,Ba3a2][%mdl 32]} 36. Rc5 a4 37. Ra5 a3 38. Ra6 Rg2+ {Black mates.} 39. Kh1 a2 40. e4 Rc2 {Weighted Error Value: White=1.01/Black=0.79} 0-1

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.14"]
[Round "2.3"]
[White "Wu, Rochelle"]
[Black "Posthuma, Joshua"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2095"]
[BlackElo "2307"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,72,-13,-8,-12,35,37,41,39,28,38,45,41,63,40,58,28,68,31,52,39,43,40,119,114,120,97,214,219,193,106,138,84,100,0,110,102,287,244,272,217,515,490,566,565,560,540,914,905,890,885,1049,1041,29993,29994,29994,2616,29995,29996,29996,29997,29997,29998,29998,29999,29999]} 1. d4 Nf6 2. Bg5 d5 3. Nd2 Nbd7 4. e3 e5 5. dxe5 Nxe5 6. Ngf3 {D00: 1 d4 d5: Unusual lines.} Ng6 7. c4 Be7 {[#]} 8. Qb3 $146 {White is slightly better.} ({Predecessor:} 8. cxd5 Nxd5 9. Bxe7 Qxe7 10. Bc4 Nb6 11. Be2 O-O 12. Qc2 c6 13. O-O Rd8 14. Nb3 {0-1 (42) Kindermann,S (2494)-Lakunza Plazaola,A (2149) Vienna 2019}) 8... c6 9. Bxf6 Bxf6 10. cxd5 $1 cxd5 11. Bb5+ Kf8 12. Rd1 Qb6 13. O-O a6 14. Ba4 Qxb3 15. Bxb3 Bxb2 ({Better is} 15... Be6 $14) 16. Bxd5 $16 Bf6 17. Nc4 {[%cal Bd2c4,Bc4b6,Bb6a4][%mdl 32]} Ke7 {[#]} (17... Rb8 $16) 18. e4 $1 $18 {[%cal Re4e5] Threatens to win with e5.} Bc3 19. Rb1 (19. Rc1 $18 Nf4 20. Nb6) 19... Rb8 $16 20. Rfc1 (20. Rb3 $142 Nf4 21. g3 Nxd5 22. exd5) 20... Nf4 {[#]} 21. Kf1 ({White should play} 21. Kh1 $1 $16 Bf6 22. Ne3) 21... Bf6 (21... Nxd5 $11 {remains equal.} 22. exd5 Bf5) 22. Nb6 $36 {[%mdl 2048] Strongly threatening e5. Black is under strong pressure.} Be6 $2 {A mistake that costs the game.} (22... Nxd5 $16 {was worth a try.} 23. Nxd5+ Kf8) 23. Bxe6 $18 Kxe6 24. Na4 {aiming for Nc5+.} Bd8 $2 (24... Nd3 {might work better.}) 25. Nc5+ Kd6 26. Nxb7+ Ke7 27. Ne5 Ke6 28. Nc5+ {[%mdl 64] Double Attack, Discovered Attack} Kxe5 29. Rxb8 Ng6 30. Rd1 Be7 31. Rd5+ Kf4 32. Rxh8 (32. Rf5+ $142 Kg4 33. f3+ Kh4 34. Rxh8 h6 35. g3+ Kh3 36. Rh5+ Nh4 37. Rxh4+ Bxh4 38. gxh4 Kxh4 39. Nxa6) 32... Nxh8 33. Rf5+ {White mates.} Kg4 34. f3+ Kh4 35. g3+ Kh3 36. Rh5+ {[%mdl 64] Double Attack} Bh4 37. Rxh4# {Weighted Error Value: White=0.15/Black=0.96} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.14"]
[Round "2.4"]
[White "Sarkar, Justin"]
[Black "Park, Evan"]
[Result "1-0"]
[ECO "E36"]
[WhiteElo "2366"]
[BlackElo "2207"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,53,0,0,-21,-13,-36,0,-20,0,0,0,0,0,0,0,0,245,256,256,255,239,239,703,694,1108,1057,1093,1108,29988,29989,29988,4962,4898,4802,5712,5693,29995,29996,29998,29999]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 d5 7. Nf3 dxc4 8. Qxc4 b6 9. h4 {E36: Nimzo-Indian: Classical: 4...d5 5 a3.} Ba6 10. Qc2 c5 11. dxc5 {The position is equal.} bxc5 {[#]} 12. h5 $146 {Threatens to win with h6.} ({Predecessor:} 12. Rh3 Nc6 13. Bg5 Nd4 14. Nxd4 cxd4 15. Rd1 e5 16. Rf3 Bb7 17. Bxf6 gxf6 18. Rg3+ {1-0 (62) Ding,L (2791)-Nakamura,H (2736) chess24.com INT 2020}) 12... h6 $1 13. g4 Nxg4 14. Rg1 f5 15. Bh3 Qe8 $2 (15... Nc6 $11 {and Black stays safe.} 16. Bxg4 fxg4 17. Rxg4 Rxf3 18. Rxg7+ Kxg7 19. Qg6+ {[%mdl 64] Double Attack} Kh8 20. Qxh6+ Kg8 21. Qg6+ Kh8 22. Qh6+ Kg8 23. Qg6+ Kh8 24. Qh6+) 16. Bxg4 $18 fxg4 {[#]} 17. Bxh6 $1 {[%mdl 512]} Qxh5 {[#]} 18. Bxg7 {[%mdl 512]} Kxg7 (18... Qf5 19. Qxf5 Rxf5) 19. Qe4 $1 {[%csl LRa8,LRe6,LRg4]} Kh8 {[#]} 20. O-O-O $1 {Threatening mate with Rh1!} Qf5 21. Qxg4 {[%csl Gg1][%cal Rg4g7]} Qf4+ 22. Qxf4 Rxf4 23. Rg3 (23. Rg6 $142 Rc4+ 24. Kd2 Rh4 25. Nxh4 Nc6 26. Rh1 Rd8+ 27. Ke1 Rd7 28. Nf5+ Rh7 29. Rhg1) 23... Bd3 24. Ne5 Be4 25. f3 Rh4 26. Rdg1 Nc6 27. Nf7+ {Weighted Error Value: White=0.04/Black=0.96} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.14"]
[Round "2.5"]
[White "Liang, Jason"]
[Black "Adamson, Robby"]
[Result "1-0"]
[ECO "C58"]
[WhiteElo "2342"]
[BlackElo "2239"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,107,23,29,45,20,35,31,76,75,66,65,66,52,185,166,168,159,191,168,181,161,184,170,183,177,223,223,260,250,333,338,333,309,299,287,393,399,368,360,629,619,610,502,480,271,281,260,270,266,238,215,245,241,240,220,243,230,231,233,250,247,222,229,233,212,286,279,267,257,287,253,297,281,275,265,394,369,2300,2173,12833,10234,12833,12834,12834,9577,12837,12838,12838,12839,12843,12844,12844,12843,12845,12845]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Bd3 {Nowadays more popular than 8.Be2.} Nd5 {C58: Two Knights: 4 Ng5 d5 5 exd5 Na5 sidelines.} 9. Nf3 (9. h4 {with more complications.} g6 10. Nc3 Rb8 11. b3 Nf4 12. Bf1) 9... Nf4 10. Bf1 Bg4 {[#] Threatens to win with ...e4.White is slightly better.} 11. h3 $146 ({Predecessor:} 11. d3 Bc5 12. Bxf4 exf4 13. Be2 Qb6 14. O-O Qxb2 15. Nbd2 O-O 16. Rb1 Qxa2 17. Ra1 {½-½ (63) Brunner,H-Ramus,N DESC email 2005}) 11... Bh5 12. g4 Bg6 13. d4 Qd5 (13... Ne6 $1 $14) 14. Bxf4 $18 exf4 {[#]} 15. Bd3 Be7 16. O-O $36 {[%mdl 2048] Black is under strong pressure.} O-O 17. Nc3 Qd6 18. Bxg6 hxg6 19. Re1 Rfe8 20. Qd3 Rad8 21. Re5 Qc7 22. Rae1 Kf8 23. Qa6 Nb7 24. d5 ({Not} 24. Qxa7 f6 $16) 24... f6 25. R5e2 cxd5 26. Qd3 {Strongly threatening Nh4.} Qc4 $2 (26... Qd7 27. Nh4 Bc5 28. Nxg6+ Kg8 29. Nxf4 Rxe2 30. Rxe2 d4) 27. Qxg6 d4 {[#]} 28. Nh4 $1 {aiming for Qh7.} dxc3 29. Nf5 (29. Qh7 $142 Qxe2 30. Rxe2) 29... Qf7 30. Qxf7+ Kxf7 31. Rxe7+ {[%mdl 64] Double Attack} Kf8 {Threatening ...Rxe7.} 32. bxc3 Nd6 33. Rxe8+ Nxe8 {[%mdl 4096] Endgame KRN-KRN} 34. Nd4 {And now Ne6+ would win.} Rc8 35. Ne6+ Kf7 36. Nxf4 Rxc3 {[#]} 37. Re7+ $3 {[%mdl 576] Decoy} Kxe7 38. Nd5+ {[%mdl 64] Double Attack} Kd6 39. Nxc3 {KN-KN} Kc5 40. Kf1 Kc4 41. Nb1 Nc7 42. h4 Nd5 43. Ke2 Nb4 44. Na3+ Kc5 (44... Kd5 {was necessary.} 45. Nb5 a5 46. Nc7+ Ke5) 45. c3 Nxa2 (45... Nd5 46. Kd2 a6) 46. Kd2 {White is clearly winning.} a6 47. h5 Kd5 48. f3 Ke5 49. Nc2 a5 50. Nd4 a4 51. Nf5 Kf4 52. Nxg7 Kg5 53. Kc2 a3 54. Nf5 {Black got outplayed after the opening.  Weighted Error Value: White=0.12/Black=0.35} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.14"]
[Round "2.6"]
[White "Eckert, Doug"]
[Black "Colas, Joshua"]
[Result "0-1"]
[ECO "D38"]
[WhiteElo "2151"]
[BlackElo "2280"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,78,26,37,25,31,35,12,20,28,37,47,52,41,65,13,62,73,78,72,104,59,67,43,51,47,52,57,53,57,54,26,20,0,0,0,0,-81,-65,-76,-40,-68,0,0,87,-93,-58,-59,6,40,146,-61,-60,-58,-77,-160,-138,-117,0,0,0,-212,-91,-249,-271,-1063,-1029,-1008,-719]} 1. d4 e6 2. c4 Nf6 3. Nf3 d5 4. Nc3 Bb4 5. cxd5 exd5 6. Bg5 O-O 7. e3 h6 {7...Bf5 is the modern continuation. D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} 8. Bh4 c5 9. Be2 g5 {The position is equal.} 10. Bg3 Ne4 11. Rc1 Qa5 12. dxc5 {[#]} Nc6 $146 ({Predecessor:} 12... Nxc3 13. bxc3 Bxc3+ 14. Kf1 Nc6 15. h4 g4 16. Nd4 Bxd4 17. exd4 h5 18. Kg1 Qb4 {1-0 (27) Laznicka,V (2517)-Pashikian,A (2442) Herceg Novi 2005}) 13. Nd4 (13. Qxd5 $14 Nxc3 14. bxc3 Bxc3+ 15. Kf1) 13... Qxa2 14. O-O Bxc3 15. bxc3 Qa3 16. Nb5 Qxc5 17. Nc7 Nxg3 18. hxg3 Rb8 19. Nxd5 b5 {[%cal Bb7b5,Bb5b4,Bb4b3][%mdl 32]} 20. c4 b4 21. Qa4 {And now Qxc6! would win.} (21. Qc2 $5 {[%cal Rc2b2]}) 21... Kg7 22. Qa1+ f6 23. f4 g4 24. f5 (24. Kf2 $1 $11) 24... h5 $17 25. Rf4 b3 {Strongly threatening ...b2.} 26. Qb2 Ne7 (26... a5 $1 $15 27. Kf2 Ne5) 27. Kh2 $11 Bb7 (27... Nxd5 $11 {keeps the balance.} 28. cxd5 Qxe3) 28. Nxe7 $2 (28. Re4 $1 $16 {[%cal Re4e7]} Rf7 29. Re6) 28... Qxe7 $17 29. Rc3 a5 ({Black should play} 29... Qe5 $15 30. Bd1 Bc6) 30. Rxb3 $11 Qc7 (30... a4 $14 31. Rb6 a3) 31. Rb5 $2 ({White must play} 31. c5 $1 $16) 31... Bc6 $36 {[%mdl 2048] Black has good play.} 32. Rxb8 Rxb8 33. Qd2 ({White should try} 33. Qd4) 33... a4 $17 34. e4 {With the idea Bxg4!} a3 (34... Qe5 $1 $17 {...a3 is the strong threat.} 35. Qe3 Rb3 36. Qa7+ Rb7) 35. Bxg4 $1 $11 Rb2 36. Qc1 {[#]} (36. Qe3 $11 a2 37. Bxh5 (37. Qa3 Qb7 $11)) 36... Be8 $1 $19 {Hoping for ...Qe5.} ({And not} 36... hxg4 37. Rxg4+ Kh8 38. Qc3 $11) 37. Bxh5 $2 Bxh5 38. Rh4 $2 {[#]} (38. c5 Qd7 39. c6) 38... Rb3 $1 39. Qe1 {[#]} a2 $1 {Weighted Error Value: White=0.55/Black=0.22} 0-1

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.14"]
[Round "2.7"]
[White "Perrine, Dalton"]
[Black "Mardov, Dimitar"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "2247"]
[BlackElo "2265"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,69,48,51,32,43,0,35,0,36,26,23,30,31,24,36,27,36,29,40,31,32,10,56,-52,-64,-50,-54,-50,-35,-108,-115,-164,-157,-164,-155,-153,-154,-139,-142,-137,-62,-72,-57,-56,491,0,0,-29962,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. g3 Nf6 6. Bg2 Qc7 7. O-O Be7 8. Re1 {A46: 1 d4 Nf6 2 Nf3 e6: Torre, London and Colle Systems.} d6 9. c4 O-O 10. Be3 {[#] White is slightly better.} Nc6 $146 ({Predecessor:} 10... Qxc4 11. Na3 Qc7 12. Rc1 Qd8 13. Nc4 Nbd7 14. f4 d5 15. exd5 Nxd5 16. Bf2 N7f6 {0-1 (37) Heck,N (2308)-Mainka,R (2456) Hoeckendorf 2004}) 11. Nxc6 bxc6 12. Nc3 Nd7 13. f4 Bb7 14. Qd2 c5 15. Rad1 {And now e5! would win.} Rfd8 16. Qf2 Bc6 17. g4 Qb7 18. Nd5 exd5 $15 19. exd5 Ba4 20. b3 {[#]} Nf6 $1 {[%cal Rf6g4]} 21. h3 (21. g5 $15 Bd7 22. gxf6 Bxf6 23. f5) 21... Be8 $17 22. Bxc5 dxc5 23. d6 {[#]} Bc6 24. dxe7 Rxd1 25. Rxd1 Re8 {...Bxg2 is the strong threat.} 26. g5 Nh5 ({Black should play} 26... Nd7 $17 27. Qd2 Nb8) 27. Bxc6 $15 Qxc6 28. Rd8 {Threatening mate with Qf3!} g6 $2 {[%mdl 8192] [#]} (28... f6 $1 $15 {keeps the upper hand.} 29. Rxe8+ Qxe8) 29. Qf3 $3 {[%mdl 512]} Qxf3 $11 30. Rxe8+ Kg7 {( -> ...Qe3+)} 31. Rg8+ $1 {[%mdl 64] Decoy. The position is equal.} Kxg8 32. e8=Q+ Kg7 33. Qe5+ {[%mdl 64] Double Attack} Kf8 34. Qb8+ Ke7 (34... Kg7 $5 35. Qe5+ $8 {[%mdl 64] Double Attack} Kg8 36. Qe8+ Kg7 37. Qe5+ $11 {[%mdl 64] Double Attack}) 35. Qc7+ {[%mdl 64] Double Attack.  Weighted Error Value: White=0.42/Black=0.42} 1/2-1/2

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.14"]
[Round "2.8"]
[White "Kumar, Nikhil"]
[Black "Yanayt, Eugene"]
[Result "1/2-1/2"]
[ECO "E92"]
[WhiteElo "2322"]
[BlackElo "2100"]
[Annotator "TA"]
[PlyCount "121"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,121,29,26,24,25,23,60,58,60,70,73,63,88,51,102,70,115,112,98,-76,-76,-107,-66,-65,-77,-74,-69,-60,-47,-30,-26,-34,-26,-23,-15,-12,-15,-15,0,0,0,-29,0,-38,-28,-82,-21,-86,-82,-104,-110,-113,-104,-121,-102,-145,-137,-188,-183,-175,-147,-137,-118,-184,-172,-177,-165,-193,-188,-277,-270,-232,-197,-183,-183,-183,-183,-261,-261,-260,-250,-213,-4,-4,-4,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 a5 8. Bg5 h6 9. Be3 Ng4 10. Bc1 f5 {10...f5 is better than 10...Na6.} 11. exf5 {E92: King's Indian: Classical: 6 Be2 e5: 7 dxe5, 7 Be3 and Petrosian System without 7...Nbd7.} gxf5 12. g3 Na6 13. Nh4 {White is slightly better.} Nc5 14. f3 Nf6 15. Be3 b6 16. Qd2 {[#]} Kh7 $146 (16... f4 $14 17. Bxc5 bxc5) ({Predecessor:} 16... f4 17. Bxc5 bxc5 18. O-O-O a4 19. Ng6 Re8 20. Bd3 e4 21. fxe4 f3 22. Rhf1 Bg4 {1-0 (53) Lindberg,W (2018)-Cheek,C (2157) ICCF email 2018}) 17. O-O-O a4 18. Qc2 Nh5 19. f4 $2 {[#]} (19. Rhg1 $16 {keeps the pressure on.}) 19... Nxf4 $1 $17 20. Bg4 {[%cal Rh4f5] [#]} (20. Bf3 Bd7) 20... Qg5 21. Bf3 {[#]} Qf6 $1 22. a3 Ng6 23. Ng2 e4 24. Be2 Ne5 25. Nf4 Ncd3+ (25... Ra5 {with more complications.} 26. Rhf1 Qe7 27. Rde1 Bd7 28. Kb1 Kg8) 26. Nxd3 Nxc4 27. Nxe4 fxe4 28. Qxc4 {[%mdl 64] Threatens to win with Rhf1. Double Attack} exd3 29. Bxd3+ Kh8 {[%csl Gg7][%cal Rf6b2]} 30. Qc2 (30. Qb4 {looks sharper.} Bg4 31. Rd2 Bf3 32. Re1 Rfe8 33. Rf2) 30... Bh3 31. Bd2 Bg2 {[%mdl 64] Double Attack} 32. Rhe1 (32. Rhg1 $11 Bxd5 33. Rdf1) 32... Bxd5 (32... Bf3 $17 33. Kb1 Bxd1 34. Rxd1 Rae8) 33. Bc3 (33. Rf1 $1 $11 Qe5 34. Bf4) 33... Qg5+ 34. Rd2 Bb3 35. Bxg7+ Qxg7 36. Qc3 Rae8 37. Rde2 Rxe2 $40 {[%mdl 128] Black wants a kill.} 38. Qxg7+ Kxg7 39. Rxe2 {[%mdl 4096] Endgame KRB-KRB} c6 40. Kd2 c5 41. g4 (41. Ke1 $17) 41... d5 42. Bf5 d4 43. h4 Rf7 44. Kd3 (44. h5 $142) 44... h5 $19 45. Rg2 Kf6 46. Ke4 hxg4 47. Bxg4 Re7+ 48. Kf4 (48. Kd3 {is a better defense.}) 48... Bd5 49. Rf2 c4 50. h5 c3 $2 (50... Be4 $19 {Strongly threatening ...b5.} 51. Bd1 b5) 51. bxc3 $11 {The position is equal.} dxc3 {And now ...Re5 would win.} 52. Bf5 Bb3 53. h6 Bg8 54. Rc2 Rc7 55. Bd3 Bh7 (55... Bb3 {is more complex.} 56. Rc1 c2 57. Ke3 Kf7 58. Kd2 Rc6) 56. Bxh7 Rxh7 57. Rxc3 {Hoping for Rc6+.} Rxh6 58. Rc6+ Kg7 59. Rxh6 Kxh6 60. Ke5 b5 {...b4! is the strong threat.} 61. Kd4 $1 {Black had all chances to win.  Weighted Error Value: White=0.19/Black=0.21} 1/2-1/2

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.14"]
[Round "2.9"]
[White "Chiu, Isaac"]
[Black "Kumar, Naman"]
[Result "1-0"]
[ECO "A36"]
[WhiteElo "2209"]
[BlackElo "2158"]
[Annotator "TA"]
[PlyCount "117"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,117,7,13,36,29,38,14,9,10,50,62,133,54,52,45,57,48,92,92,237,244,248,233,222,103,113,92,81,61,74,45,79,53,105,85,75,89,89,89,89,84,89,47,92,90,112,103,98,39,39,17,39,39,46,46,46,46,36,10,10,10,10,10,10,6,10,10,10,6,64,0,0,0,0,0,0,0,14,17,33,12,34,0,0,0,0,0,1557,1331,1218,1325,12833,12832,12832,12835,12837,12835,12838,12839,12834,12834,12843,12843]} 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. a3 d6 6. Rb1 e6 7. b4 Nge7 8. Nf3 O-O 9. O-O cxb4 {A36: Symmetrical English vs ...g6: 4 Bg2 Bg7.} 10. axb4 {[#]} d5 $146 ({Predecessor:} 10... Bd7 11. Qb3 Qc7 12. Bb2 Rac8 13. Rfc1 e5 14. Nd5 Qd8 15. b5 Na5 16. Nxe7+ Qxe7 {1-0 (53) Loew,G (2241)-Bunk,K (2093) Fuerth 2016}) 11. Qb3 dxc4 {The position is equal.} 12. Qxc4 e5 13. b5 Be6 14. Qa4 (14. Qh4 $16 Nf5 15. Qxd8 Nxd8 16. Ba3) 14... Nd4 $14 15. Nxd4 exd4 16. Ne4 Bf5 17. Ba3 Re8 (17... Bxe4 $16 18. Bxe4 Qd7) 18. Nd6 $18 {[%mdl 64] [#] Double Attack} Bxb1 19. Nxe8 (19. Rxb1 $6 Nc8) 19... Qxe8 20. Rxb1 (20. Bxb7 $18 Rb8 21. Qxa7) 20... Qd7 $16 21. Qb3 Rc8 22. Qf3 b6 23. Qe4 Rc7 24. h4 Qf5 25. Qxf5 (25. Bd6 {looks sharper.} Qxe4 26. Bxe4 Rd7 27. Bb8 Rd8 28. Bxa7 Nc8 29. Bb8) 25... Nxf5 26. Be4 Bf8 27. Bxf8 Kxf8 28. Bxf5 gxf5 {[%mdl 4096] Endgame KR-KR} 29. Rb4 Rc5 30. Kg2 ({Don't play} 30. Rxd4 $6 Rxb5 31. f3 Ke7 $11) 30... Ke7 31. Kf3 ({Of course not} 31. Rxd4 $6 Rxb5 32. Kf3 Rb3+ 33. e3 b5 $11) 31... Kf6 32. e3 ({Reject} 32. Rxd4 $6 Rxb5 33. Rd8 a5 $11) (32. d3 $16) 32... dxe3 $14 33. fxe3 Rd5 34. d4 h6 35. Rb1 Ke6 36. Ke2 Rd8 37. Ra1 Rd5 38. Rxa7 Rxb5 39. Ra8 Kf6 40. Rb8 Rb3 41. Kf3 Rb2 42. g4 Rb3 (42... fxg4+ $11 43. Kxg4 Kg7) 43. Re8 (43. gxf5 $1 $14 Kxf5 44. Rh8) 43... fxg4+ $11 44. Kxg4 Rb1 45. Rh8 Kg7 46. Rb8 (46. Rc8 {is interesting.} b5 47. Kf5 Re1 48. e4 Rf1+ 49. Ke5) 46... Kf6 47. Kf4 Rb5 48. e4 {White wants to play d5.} Rb1 $1 49. e5+ Ke6 50. Re8+ Kd5 51. Rd8+ Ke6 $2 {[%mdl 8192] [#]} (51... Kc4 $11) 52. Rd6+ $18 {White is clearly winning.} Ke7 53. Rxh6 Rf1+ 54. Ke4 Re1+ 55. Kd5 Rh1 56. Kc6 Rd1 57. d5 Rc1+ 58. Kxb6 Re1 59. Kc7 {Weighted Error Value: White=0.15/Black=0.19} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.14"]
[Round "2.10"]
[White "Wu, Derek"]
[Black "Resika, Nathan"]
[Result "1-0"]
[ECO "A90"]
[WhiteElo "2198"]
[BlackElo "2155"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,90,8,37,26,55,57,45,36,40,40,35,32,44,33,46,36,44,43,68,58,110,109,110,95,131,0,9,0,14,0,0,-27,-15,0,31,18,29,0,32,-12,0,-78,-93,-572,-610,-560,-581,-1382,0,-175,-33,-30,-53,-28,11,0,0,0,2727,2795,29976,12345,29977,29977,29981,29982,29987,29988,29999]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Bd6 6. Bg2 O-O 7. O-O c6 8. Qc2 Ne4 9. Bf4 Bxf4 10. gxf4 f5 11. Nbd2 Nd7 12. e3 Qe7 13. Rac1 {A90: Dutch Defence: Miscellaneous and Modern Stonewall (with ...Bd6).} Ndf6 14. Ne5 Bd7 {[#]} 15. c5 $146 {White is slightly better.} ({Predecessor:} 15. Nxe4 fxe4 16. f3 exf3 17. Rxf3 Be8 18. Rh3 {½-½ (17) Shestoperov,A (2445)-Gleizerov,E (2545) Briansk 1995}) 15... Nxd2 16. Qxd2 Be8 17. b4 a6 18. Rb1 Bh5 19. f3 Nd7 20. Nd3 Rf6 21. a4 Rh6 ({Black should try} 21... h6 $14) 22. b5 $16 axb5 23. axb5 Be8 24. Qf2 (24. bxc6 $16 bxc6 25. Ra1) 24... cxb5 $1 $11 25. Rfc1 Nf8 26. Rb3 Bc6 27. Ne1 Ra4 28. Bf1 Qe8 (28... e5 $5 29. dxe5 d4 $11) 29. Rcb1 {[%cal Rf1b5][%mdl 1024] White has compensation.} Rc4 30. Nd3 Ng6 31. Nb4 Nh4 $1 32. Ra3 (32. Bxc4 $2 dxc4 33. Nxc6 Qxc6 $19) (32. Nd3 $11 {remains equal.}) 32... Qh5 $17 33. e4 $2 {[%mdl 8192] [#]} (33. Be2 $17 {was the crucial defense.}) 33... Rxb4 $1 $19 {[%mdl 512]} 34. Rxb4 {e5 is the strong threat.} dxe4 {White must now prevent ...Rg6+.} 35. fxe4 Bxe4 $2 (35... Rg6+ $19 36. Rg3 Nf3+ 37. Kh1 Bxe4) 36. Rbb3 $2 (36. Be2 $11 {and White has nothing to worry.} Rg6+ 37. Kf1) 36... b4 (36... Qd1 $19 37. Rg3 b4) 37. Ra8+ $15 Kf7 {Strongly threatening ...Rg6+.} 38. Be2 Qg6+ 39. Rg3 Qf6 40. Bb5 Ng6 $2 {[%mdl 8192] [#]} (40... Nf3+ $11 41. Rxf3 Bxf3 42. Be8+ (42. Qxf3 Qxd4+ {[%mdl 64] Double Attack} 43. Kh1 Qxc5 $11) 42... Ke7 43. Qxf3 Qxd4+ {[%mdl 64] Double Attack} 44. Kh1 Kf6) 41. Be8+ $1 $18 Ke7 {[#]} 42. d5 $1 exd5 43. c6 $1 {[%cal Rc6b7] White mates.} Nxf4 44. Qc5+ ({Not} 44. Qxf4 Qd4+ 45. Qf2 (45. Re3 Qd1+ 46. Qf1 Qxf1+ 47. Kxf1 bxc6 $17) 45... Qxf2+ 46. Kxf2 Rxh2+ 47. Kg1 Rh1+ 48. Kf2 bxc6 $15) 44... Ke6 45. Bd7+ Kf7 46. Qf8# {White used his chance.  Weighted Error Value: White=0.57/Black=0.54} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.14"]
[Round "3.1"]
[White "Mishra, Abhimanyu"]
[Black "Wu, Rochelle"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "2354"]
[BlackElo "2095"]
[Annotator "TA"]
[PlyCount "47"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,47,21,25,32,21,22,22,30,25,33,28,98,87,472,477,472,465,455,467,527,528,541,535,506,530,505,485,487,496,498,490,489,491,669,661]} 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 Bf5 5. cxd5 cxd5 6. Qb3 Bc8 {6...Nc6 is the hot move.} 7. Nf3 e6 8. Bd3 Nc6 {D10: Slav Defence: 3 cxd5 (without early Nf3) and 3 Nc3.} 9. O-O Be7 10. Bd2 O-O {The position is equal.} 11. Rfc1 {[#]} Nd7 $146 ({Predecessor:} 11... Bd7 12. a3 Rc8 13. Qa2 Bd6 14. b4 a6 15. b5 axb5 16. Nxb5 Bb8 17. Nc3 Na5 18. Rab1 Bc6 19. Ne2 Re8 20. Bb4 Nd7 21. Ng3 {½-½ (21) Polak,T (2514)-Hera,I (2605) Germany 2019}) 12. Na4 f5 (12... Bd6 $11) 13. Bb5 $16 Na5 $2 {[%mdl 8192]} (13... Rb8 $16 {is tougher.}) 14. Bxa5 $18 {White is clearly winning.} Qxa5 {[#]} 15. Rxc8 $1 {[%mdl 576] Remove Defender} Raxc8 16. Bxd7 Rc4 17. Bxe6+ Kh8 18. Nc3 Rc6 19. Bxd5 Rb6 20. Qa4 Qxa4 21. Nxa4 Rb4 22. Bb3 Rc8 23. Nc3 Bf6 24. Nd5 {Black got outplayed after the opening.  Weighted Error Value: White=0.02/Black=0.74} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.14"]
[Round "3.2"]
[White "Sinha, Sahil"]
[Black "Sarkar, Justin"]
[Result "1/2-1/2"]
[ECO "A89"]
[WhiteElo "2324"]
[BlackElo "2366"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,79,34,31,44,45,54,37,66,33,27,26,31,25,231,207,215,235,212,221,214,229,205,210,197,123,108,116,129,116,771,759,704,25,8,20,13,25,206,206,204,204,189,176,195,186,193,163,189,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d6 2. Nf3 g6 3. c4 f5 4. Nc3 Nf6 5. g3 Bg7 6. Bg2 O-O 7. O-O Nc6 8. d5 Na5 9. Nd2 c5 10. a3 Ng4 {A89: Dutch Defence: Leningrad System: 5 Nf3 0-0 6 0-0 d6 7 Nc3 Nc6.} 11. Qc2 f4 {[#]} 12. Nce4 $146 ({Predecessor:} 12. gxf4 Rxf4 13. Nde4 Rf8 14. Bg5 h6 15. Bh4 g5 16. Bg3 Nxc4 17. b4 Nxa3 18. Rxa3 cxb4 {0-1 (33) De Belair,G (2060)-Nguyen,C (2260) France 2002}) 12... e6 {White is slightly better.} 13. Rb1 exd5 14. cxd5 {Strongly threatening b4.} fxg3 15. hxg3 Bf5 $2 (15... b6 $1 $11) 16. b4 $18 cxb4 17. axb4 Rc8 18. Qa2 Bxe4 19. Nxe4 (19. Bxe4 Rxf2 20. bxa5 (20. Rxf2 $2 Qb6 $19 {[%mdl 64] Pin}) 20... Rxe2 $17) 19... Nc4 20. Bh3 (20. Qxa7 Qd7 $15) 20... h5 {[#]} 21. Bf4 ({Inferior is} 21. Qxa7 Qe7 $17) (21. Ng5 $1 $18) 21... Rxf4 $16 22. gxf4 {Ng5 is the strong threat.} Qh4 {[#]} 23. Rb3 {[%cal Rb3g3]} Nce3 $2 {[%mdl 8192]} 24. Rxe3 $18 Nxe3 25. Bxc8 $2 ({Only move:} 25. Be6+ $18 Kh8 26. fxe3 (26. Bxc8 Nxf1 27. e3 Nxe3 $11)) 25... Nxf1 $11 26. Be6+ Kh8 {( -> ...Qh2+)} 27. e3 Qh2+ $2 (27... Nxe3 $1 $11 {and Black is okay.} 28. Qe2 (28. fxe3 Qe1+ 29. Kg2 Qxe3 $14) (28. Qxa7 Ng4 $11) 28... Ng4 29. Bxg4 Qxg4+ 30. Qxg4 hxg4) 28. Kxf1 $18 {Hoping for Ke2.} Qh1+ 29. Ke2 {Threatening mate with Qc2.} Qxe4 30. Qxa7 Qxb4 31. Qb8+ Kh7 32. Kf3 b5 33. Qe8 $2 (33. Bg8+ $18 Kh8 34. Qd8) 33... Qb1 $11 {The position is equal.} 34. Qg8+ Kh6 35. Qd8 b4 36. Qg5+ Kh7 37. f5 {Intending Qxg6+ and mate.} Qd1+ 38. Ke4 Qc2+ 39. Kf3 {White wants to mate with Qxg6+.} Qd1+ 40. Ke4 {White really could win this.  Weighted Error Value: White=0.37/Black=0.26} 1/2-1/2

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.14"]
[Round "3.3"]
[White "Colas, Joshua"]
[Black "Liang, Jason"]
[Result "1/2-1/2"]
[ECO "A14"]
[WhiteElo "2280"]
[BlackElo "2342"]
[Annotator "TA"]
[PlyCount "118"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,118,0,21,1,20,-14,-12,-23,0,0,0,0,0,0,0,0,0,-3,0,0,0,-17,-6,-10,-8,-20,-10,-31,-28,-25,-34,-31,-22,-33,-10,-12,-14,-18,0,-18,-10,-16,-10,-21,-17,-33,-24,-29,0,0,0,-8,0,0,8,8,8,0,9,9,9,9,66,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,8,8,8,8]} 1. c4 e6 2. Nf3 d5 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. b3 b6 7. cxd5 Nxd5 8. d4 Bb7 9. Bb2 Nd7 10. Nbd2 {A14: English Opening: 1...e6 with b3 by White.} c5 11. dxc5 Nxc5 12. Nc4 Bf6 13. Bxf6 {[#]} Qxf6 $146 ({Predecessor:} 13... Nxf6 14. Qc2 Qe7 15. Qb2 Rfd8 {½-½ (15) Gunis,J (2061)-Szucs,V (2161) Slovakia 2007}) 14. Qd4 Nc3 15. Qe3 Rfd8 16. Rfc1 Nd5 17. Qg5 Rac8 18. Qxf6 Nxf6 19. Nfe5 Bxg2 20. Kxg2 Nd5 21. Na3 a6 22. Rc2 f6 23. Nf3 Ne4 24. Rac1 Rxc2 25. Rxc2 Kf7 26. Nb1 e5 27. Nfd2 Nxd2 28. Rxd2 $11 {[%mdl 4096] [#] Endgame Threatens to win with e4. KRN-KRN} Ke7 29. e4 Nb4 {Hoping for ...Rxd2.} 30. Rxd8 Kxd8 {KN-KN} 31. a3 Nc2 32. b4 $1 Kd7 {aiming for ...Kc6.} 33. Kf3 h5 34. h4 g5 35. g4 Nd4+ 36. Kg2 hxg4 37. hxg5 Ke6 38. Kg3 fxg5 39. Kxg4 Kf6 (39... b5 $11) 40. Kh5 (40. Nc3 $14) 40... Ne2 {The position is equal.} 41. Nd2 Nf4+ 42. Kg4 Nd3 43. f3 Nb2 44. Kh5 b5 45. Nb1 Nc4 46. Kh6 Ne3 47. Kh5 Nc4 48. Nc3 Nxa3 49. Nd5+ Ke6 50. Kxg5 Kd6 51. f4 exf4 52. Kxf4 Nc4 53. Ne3 Ke6 54. Nc2 Kf6 55. Nd4 Ne5 {And now ...Nd3+ would win.} 56. Ke3 Nc4+ 57. Kd3 a5 58. bxa5 Nxa5 59. Nxb5 Ke5 {Not much happened in this game.  Weighted Error Value: White=0.05/Black=0.05} 1/2-1/2

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.14"]
[Round "3.4"]
[White "Posthuma, Joshua"]
[Black "Chiu, Isaac"]
[Result "1-0"]
[ECO "A42"]
[WhiteElo "2307"]
[BlackElo "2209"]
[Annotator "TA"]
[PlyCount "115"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,115,57,50,59,62,52,57,74,60,71,71,71,81,67,59,95,52,66,35,46,33,64,0,0,-40,-35,-40,-44,-41,-46,-53,43,26,26,-43,-40,-36,17,25,75,66,73,72,70,52,100,104,180,89,86,91,80,76,77,68,87,8,9,0,0,-8,-8,-8,14,14,15,17,15,15,118,117,137,125,110,8,8,11,384,1097,1016,456,8103,6232,5481,4727,5566,6095,12102,11028,12379,12102,29979,29979,29983,29984,29984,29985,29985,29986,29986,29987,29987,29988]} 1. d4 g6 2. c4 Bg7 3. e4 d6 4. Nc3 e5 5. Nf3 Nc6 6. Bg5 f6 7. Be3 Nh6 8. dxe5 dxe5 {A42: Modern Defence: Averbakh Variation.} 9. Qxd8+ Kxd8 10. Rd1+ Bd7 $1 {White is slightly better.} 11. Nd5 {[#] aiming for Bxh6.} Nf7 12. c5 Kc8 13. Bc4 Nfd8 {[#]} 14. O-O $146 ({Predecessor:} 14. b4 Re8 15. b5 Na5 16. Be2 c6 17. bxc6 bxc6 18. Ba6+ Nab7 19. Nc3 Kc7 20. Nd2 {½-½ (63) Bluebaum,M (2471)-Thinius,M (2354) Deizisau 2013}) 14... Re8 15. Rd2 Bg4 16. Rfd1 Ne6 17. Bb5 Rd8 18. Bxc6 (18. Be2 $14 Bxf3 19. Bxf3) 18... bxc6 $11 19. Nb4 Kb7 20. h3 Bxf3 21. gxf3 Rxd2 22. Rxd2 Rd8 (22... a5 $15 23. Nd3 Re8) 23. Rxd8 $14 Nxd8 {[%mdl 4096] Endgame KBN-KBN} 24. f4 (24. Nd3 $11) 24... exf4 $15 25. Bxf4 f5 ({Black should play} 25... a5 $15 26. Nd3 a4) 26. exf5 $11 Bxb2 27. fxg6 hxg6 28. Kg2 Ne6 29. Be3 Bf6 30. Kf3 Nd8 (30... Bc3 $16 31. Nd3 Kc8) 31. Kg4 (31. Nd3 $18 {and White stays clearly on top.}) 31... Nf7 $16 32. f4 Nh6+ 33. Kf3 Nf5 34. Bf2 Ne7 35. h4 (35. Kg4 $16) 35... Kc8 $11 36. Kg4 Kd7 37. h5 gxh5+ 38. Kxh5 Ke6 39. Kg4 a5 40. Na6 Nd5 41. f5+ Kd7 (41... Ke7 $11) 42. Nb8+ $16 Kc8 43. Nxc6 a4 44. Bh4 (44. Bd4 $16) 44... Kd7 $11 45. Nb8+ Ke8 $2 {[%mdl 8192] This costs Black the game.} (45... Kc8 $11 46. Nc6 Kd7 47. Bxf6 Nxf6+ 48. Kg5 Ne4+ 49. Kf4 Nxc5) 46. Bxf6 $18 Nxf6+ {KN-KN} 47. Kf4 Nd5+ (47... Ke7 $142 48. Ke5 Ne8) 48. Ke5 Nc3 49. Ke6 {White threatens f6 and mate.} Ne4 50. Na6 c6 51. Ke5 Nc3 52. Nb4 Kd7 53. f6 {White mates.} a3 {[#]} 54. Nxc6 $1 {[%mdl 512]} Ke8 55. Nb4 Kf7 56. c6 Nb5 57. Nd5 Na7 58. Kd6 {Weighted Error Value: White=0.18/Black=0.52} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.14"]
[Round "3.5"]
[White "Yanayt, Eugene"]
[Black "Wang, Tianqi"]
[Result "0-1"]
[ECO "A74"]
[WhiteElo "2100"]
[BlackElo "2307"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,100,35,31,40,14,53,27,16,25,35,27,48,-6,-7,-98,-98,-98,-89,-123,-110,-113,-62,-79,-77,-93,-77,-81,-86,-100,-100,-91,-87,-108,-110,-229,-208,-194,-64,-61,-41,-101,-87,-165,-168,-220,-220,-229,-226,-234,-234,-219,-227,-454,-436,-425,-333,-1060,-908,-1220,-996,-885,-1544,-1534,-1452,-1283,-1299,-1795,-1765,-1685,-1684,-1566,-1391,-1798,-1451,-2170,-1928,-29964,-29967,-29963,-5916,-29963,-29961]} 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Nd2 Nbd7 8. e4 a6 9. a4 Bg7 10. Be2 O-O 11. O-O Rb8 {A74: Modern Benoni: Classical: 9...a6.} 12. Re1 Ne8 13. f4 {[#]} f5 $146 {White has an edge.} ({Predecessor:} 13... b6 14. Nc4 Qc7 15. Na3 Nef6 16. Bc4 Re8 17. h3 Bb7 18. Qd3 Re7 19. Bd2 Rbe8 {1-0 (56) Feyli,S (2258)-Mosadeghpour,M (2478) Rasht 2017}) 14. exf5 gxf5 15. Nf3 Nc7 16. Ng5 (16. Bd3 $14) 16... Nf6 $11 17. Bh5 (17. Bd3 $11) 17... Nxh5 $17 18. Qxh5 {[%csl Gg5][%cal Rh5h7]} h6 19. Ne6 Bxe6 20. dxe6 {Strongly threatening e7.} Qf6 ({Better is} 20... Qe8 $17 21. Qe2 Qc6) 21. Qd1 Nxe6 22. Qxd6 Qd4+ 23. Qxd4 Nxd4 24. Rb1 b5 25. axb5 axb5 {[%cal Ba6b5,Bb5b4][%mdl 32]} 26. Kf1 Rfd8 27. Re7 (27. Rd1 $17) 27... b4 28. Na4 Nb3 ({Black should play} 28... Bf6 $19 29. Ra7 Nc2 30. Nxc5 Rd1+ 31. Ke2 Rbd8) 29. Be3 $15 c4 {Threatens to win with ...c3.} 30. Ke2 {White is on the road to losing.} (30. Nb6 $1 $15) 30... Nd4+ 31. Kf2 {[#]} (31. Kf1 $17 {keeps fighting.}) 31... Nc2 $1 $36 {[%cal Rc2e3][%mdl 2048] Keeping White busy.} 32. Rc7 (32. Ba7 {was necessary.} Ra8 33. Kf1) 32... Nxe3 33. Kxe3 Ra8 34. Nc5 Bd4+ 35. Kf3 Re8 {...Re3+ is the strong threat.} 36. g4 $2 (36. Kg3 {was the only chance.}) 36... Re3+ 37. Kg2 fxg4 38. f5 $2 (38. Rd1 Rd8 39. Kh1) 38... Re2+ {[%mdl 64] [#] Double Attack} 39. Kh1 Be5 40. Re7 Rxh2+ 41. Kg1 Rxb2 42. Rxb2 Bxb2 {[%mdl 4096] Endgame KRB-KRN} 43. Nd7 Bd4+ 44. Kg2 Ra2+ 45. Kg3 Ra6 46. f6 Bxf6 47. Re4 Bg7 48. Rxg4 b3 49. Rxc4 b2 50. Rc8+ Kf7 {Weighted Error Value: White=1.05/Black=0.14} 0-1

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.14"]
[Round "3.6"]
[White "Mardov, Dimitar"]
[Black "Wu, Derek"]
[Result "1/2-1/2"]
[ECO "E05"]
[WhiteElo "2265"]
[BlackElo "2198"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,77,0,0,-34,-25,-46,2,0,87,-13,0,0,0,-12,0,-13,10,-12,-4,-37,0,-39,-30,-31,-33,-39,-33,-41,-43,-124,-120,-118,-67,-61,-67,-67,-67,-66,-68,-61,-42,-64,-35,-75,-86,-100,-106,-123,-94,-133,-51,-35,-20,-23,-25,-42,-16,-48,0,0]} 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Ne5 Nc6 8. Nxc6 bxc6 9. Na3 Bxa3 10. bxa3 Ba6 11. Rb1 {E05: Open Catalan: 5 Nf3 Be7.} Nd5 {Threatens to win with ...Nc3.} 12. Qc2 {[#]} Qe7 $146 ({Predecessor:} 12... Rb8 13. Rxb8 Qxb8 14. e4 Nf6 15. Bg5 Qb6 16. d5 cxd5 17. Bxf6 gxf6 18. exd5 Rd8 {½-½ (34) Panno,O (2450)-Teixeira,R (2320) Sao Paulo 1997}) 13. e4 Nf6 {[#]} (13... Nb6 $11 {keeps the balance.}) 14. Qc3 (14. Qa4 $1 $16 {[%cal Ra4a6]} Bb5 15. Qa5) 14... Rab8 15. Bf4 Rb6 16. Rb4 Rfb8 {[%cal Rb6b4]} 17. Rfb1 Rb5 18. Bf3 h6 19. h3 c5 (19... R5b6 {is more complex.} 20. Kg2 R8b7 21. Be3 Nd7 22. e5 Qd8) 20. Rxb5 Rxb5 21. Rxb5 Bxb5 22. d5 exd5 23. exd5 Qd7 24. Qe5 ({Better is} 24. a4 $15 Ba6 25. Qa5) 24... c3 $17 25. Qxc3 Nxd5 (25... Qxh3 $17 {...Qf1+ is the strong threat.} 26. Qxc5 Qf1+ 27. Kh2 Bd3 28. Qxa7 Be4 29. Qb8+ Kh7 30. Bxe4+ Nxe4) 26. Qxc5 $15 Nxf4 27. gxf4 a6 28. Kg2 Bd3 29. Kg3 Bf5 30. h4 Be6 31. Qa7 Qd6 ({Don't play} 31... Bxa2 $6 32. Qxa6 g6 33. a4 $11) 32. Qb8+ Kh7 33. Qb1+ g6 34. h5 Bf5 ({Black should play} 34... Qxa3 $17 {White must now prevent ...Bd5.} 35. hxg6+ fxg6) 35. Qb3 Qf6 36. Qc4 gxh5 37. Bxh5 Be6 38. Qc2+ Kg7 39. Qxc7 {Weighted Error Value: White=0.24/Black=0.19} 1/2-1/2

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.14"]
[Round "3.7"]
[White "Perrine, Dalton"]
[Black "Oberoi, Shelev"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "2247"]
[BlackElo "2161"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,60,13,13,20,24,15,23,20,3,-23,0,0,0,-9,0,0,0,0,0,-42,-50,-72,-51,-78,-71,-79,-64,-124,-76,-102,-94,-414,-424,-596,-587,-992,-993,-997,-997,-914,-933,-1637,-1071,-29991,-29982,-29982,-29983,-29983,-29984]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. Re1 Nd4 6. Nxd4 cxd4 7. c3 a6 8. Bf1 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6.} Nc6 9. b4 Be7 10. Bb2 {White has an edge.} d5 {[#]} 11. e5 $146 ({Predecessor:} 11. exd5 exd5 12. a4 O-O 13. b5 dxc3 14. Nxc3 Nb4 15. Na2 Be6 16. Bd4 a5 17. Qb3 {½-½ (63) Andersen,M (2535)-Bachmann,A (2641) Baku 2016}) 11... dxc3 12. dxc3 O-O 13. a3 f6 14. exf6 Bxf6 15. Nd2 b5 16. Qb3 Ne5 17. Rad1 Qc7 18. g3 Bb7 19. Bg2 Rac8 20. Nf1 ({White should play} 20. Qc2 $15) 20... Qb6 {...Ng4 is the strong threat.} 21. Ne3 Kh8 22. Nc2 $2 {[%mdl 8192] [#] Loses the game.} (22. Kh1 $17) 22... Ng4 $1 $19 23. Ne3 {[#]} (23. Re2 $142 Nxf2 24. Rxf2) 23... Nxf2 $1 {[%mdl 512]} 24. Kxf2 {Hoping for Kg1.} (24. Rd2 Bg5) 24... Bg5+ 25. Kg1 Bxe3+ 26. Kh1 Rf2 {And now ...d4 would win.} 27. Rf1 Rcf8 {aiming for ...d4.} 28. Rg1 d4 {Black mates.} 29. cxd4 Bxg2+ 30. Rxg2 Rf1+ {Weighted Error Value: White=1.13/Black=0.19} 0-1

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.14"]
[Round "3.8"]
[White "Park, Evan"]
[Black "Kumar, Nikhil"]
[Result "1-0"]
[ECO "A37"]
[WhiteElo "2207"]
[BlackElo "2322"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,77,16,0,-2,0,3,4,22,16,30,24,37,20,21,28,21,29,26,-31,-22,-39,51,55,56,63,122,125,173,174,317,325,322,322,317,313,300,166,305,301,308,314,333,316,307,220,166,170,322,287,525,543,613,613,1037,996,1647,650,2572,3710,29967,29968,29968,29968,29970,29970,29974,29974]} 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. d3 d6 6. Nf3 e5 7. Nd2 Nge7 {A37: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3.} 8. Nf1 Be6 9. Ne3 Qd7 {The position is equal.} 10. Ned5 O-O 11. h4 h5 {[#]} 12. Bd2 $146 ({Predecessor:} 12. a3 Bg4 13. Ne3 Be6 14. Rb1 Rac8 15. b4 cxb4 16. axb4 Nd4 17. b5 f5 18. Ned5 {0-1 (33) Gajewski,G (2630)-Wagner,D (2564) Germany 2018}) 12... Rab8 13. a3 a6 14. b4 b5 15. Nxe7+ (15. bxc5 $11 bxc4 16. dxc4) 15... Nxe7 $15 16. Nd5 Bxd5 (16... bxc4 $15 17. dxc4 e4 18. Bxe4 Nxd5 19. cxd5 Bf5 20. Bxf5 Qxf5) 17. cxd5 $14 e4 18. dxe4 Bxa1 {Black is now going downhill.} (18... c4 $14) 19. Qxa1 $16 f5 {[#]} 20. e5 {[%cal Re5e6] And now e6 would win.} Nc8 (20... c4 {was necessary.}) 21. bxc5 dxc5 22. e6 Qe7 23. Bg5 Qg7 24. Qxg7+ Kxg7 25. Bf4 Rb6 26. Be3 Rd8 {intending ...Rbd6.} 27. Bxc5 Rbd6 28. Bxd6 Nxd6 $18 {[%mdl 4096] Endgame KRB-KRN} 29. Kd2 Nc4+ $2 (29... Ne4+ 30. Bxe4 fxe4) 30. Kd3 Kf6 $2 (30... Rc8 {keeps fighting.} 31. Rc1 Nb2+ {[%mdl 64] Discovered Attack} 32. Kd2 Rxc1 33. Kxc1 Nc4) 31. Rc1 Rc8 32. Kd4 g5 33. hxg5+ Kxg5 {[#]} 34. Bf3 (34. Rxc4 $142 $1 bxc4 35. d6) 34... Rh8 35. Rxc4 bxc4 36. d6 {White mates.} Kf6 37. e7 c3 38. Kxc3 Rc8+ 39. Kd4 {Weighted Error Value: White=0.24/Black=0.61} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.14"]
[Round "3.9"]
[White "Kumar, Naman"]
[Black "Eckert, Doug"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2158"]
[BlackElo "2151"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,75,10,12,12,0,15,-12,12,0,29,25,20,0,36,0,7,0,2,3,0,-15,0,-44,-47,-39,0,0,0,0,24,0,0,0,-7,-1,0,-34,0,0,0,0,0,0,6,8,14,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. O-O O-O 7. Bb3 h6 8. Re1 {Recently 8.h3 got a lot of attention.} a5 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 9. a4 Be6 10. Bc2 Ba7 11. h3 {[#]} Ne7 $146 ({Predecessor:} 11... Re8 12. Be3 d5 13. Bxa7 Rxa7 14. d4 exd4 15. exd5 Bxd5 16. Nxd4 Rxe1+ 17. Qxe1 Nxd4 18. cxd4 {0-1 (38) Jaufarally,N (1878)-Mannion,S (2285) Newcastle 2019}) 12. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1e3,Be3f5][%mdl 32]} Ng6 13. Nf1 c6 14. Be3 Bxe3 15. Nxe3 Qc7 16. d4 Rad8 17. Nf5 Rfe8 18. g3 d5 19. exd5 Nxd5 (19... Rxd5 $15 20. Ne3 Rdd8) 20. Qd3 $11 {[%cal Rf3e5]} exd4 21. N3xd4 Bc8 22. Rxe8+ Rxe8 23. Nh4 Nf8 24. Nhf5 Nf6 25. Nf3 Rd8 26. Qe3 {The position is equal.} Bxf5 27. Bxf5 Re8 28. Qd4 Rd8 29. Qc4 Rd5 (29... Re8 {keeps more tension.} 30. Bc2 g6 31. Rb1 Nd5 32. Kg2 Nd7) 30. Be4 Nxe4 31. Qxe4 Qd7 32. Kg2 Ne6 33. b4 axb4 34. cxb4 Ng5 35. Nxg5 Rxg5 36. Re1 {[#] aiming for Qe8+.} Rd5 37. Qe8+ Kh7 38. Qxd7 {Weighted Error Value: White=0.09/Black=0.08} 1/2-1/2

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.15"]
[Round "4.1"]
[White "Sinha, Sahil"]
[Black "Mishra, Abhimanyu"]
[Result "1/2-1/2"]
[ECO "D23"]
[WhiteElo "2324"]
[BlackElo "2354"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,99,19,22,9,12,14,0,1,12,0,0,2,29,20,31,26,31,28,31,24,32,20,17,19,33,0,0,0,0,0,0,0,0,-10,0,0,0,0,32,32,34,27,30,27,31,27,27,27,27,21,75,38,47,47,52,52,83,83,83,83,83,83,83,83,83,83,83,83,83,83,92,92,92,68,85,79,79,79,79,22,29,22,22,22,22,22,22,0]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qc2 dxc4 5. Qxc4 Bf5 6. g3 e6 7. Bg2 Be7 8. O-O {D23: Queen's Gambit Accepted: 3 Nf3 Nf6 sidelines.} O-O 9. Rd1 Nbd7 10. e3 Rc8 11. Nc3 b5 12. Qe2 Bg6 {[#]} (12... b4 $5 {[%cal Rb4c3]} 13. Na4 Qa5 $11) 13. Ne5 $146 ({Predecessor:} 13. b3 Qa5 14. Bb2 b4 15. Na4 Rc7 16. h3 Qb5 17. Qe1 Be4 18. Rac1 Qb7 19. Nc5 Nxc5 20. dxc5 {1-0 (44) David,A (2520)-Lamard,G (2486) Chartres 2020}) 13... Nxe5 14. dxe5 Nd7 15. f4 Qc7 16. Ne4 Bxe4 17. Bxe4 Rfd8 18. Bd2 a6 19. Qe1 Nb6 20. Ba5 Rxd1 21. Rxd1 Qa7 22. b3 Nd5 23. Bd2 a5 24. Rc1 ({But not} 24. Bxa5 $2 b4 $19) 24... Ba3 25. Rc2 Nb4 26. Bxb4 Bxb4 27. Qc1 Ba3 28. Qd2 Qb6 29. Kf2 Rd8 30. Qe2 c5 31. Bd3 Qc6 (31... Rb8 $11 {remains equal.}) 32. h4 (32. Rd2 $5 {[%cal Rd3h7]} g6 33. Bxb5 {[%mdl 64] Discovered Attack} Rxd2 34. Bxc6 Rxe2+ 35. Kxe2 $16) 32... Qh1 33. Qf1 Qxf1+ 34. Bxf1 $14 {[%mdl 4096] Endgame KRB-KRB} Bb4 35. Bxb5 Rd2+ 36. Rxd2 Bxd2 $16 {KB-KB} 37. h5 Kf8 38. Kf3 Ke7 39. g4 h6 40. Bc4 f6 41. exf6+ gxf6 42. Ke4 Bc1 43. a4 Bd2 44. g5 fxg5 45. fxg5 hxg5 46. h6 ({Better is} 46. Bd3 $16) 46... Kf6 $11 47. Kd3 Bc1 {The position is equal.} 48. h7 Kg7 49. Bxe6 Kxh7 50. Bg4 {Weighted Error Value: White=0.07/Black=0.07} 1/2-1/2

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.15"]
[Round "4.2"]
[White "Sarkar, Justin"]
[Black "Colas, Joshua"]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "2366"]
[BlackElo "2280"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,89,15,14,20,-4,16,13,38,23,19,-1,18,-14,-1,-8,-7,-7,-14,-10,-21,-36,-25,-48,-20,-43,-24,-32,-28,-39,-46,-45,-42,-59,0,-62,-58,-76,-100,-213,-210,-214,-188,-686,-127,-170,-159,-139,234,0,0,-333,-191,-202,1162,1139,29977,29979,29978,29980,29980,29981,29981,29982,29981,29982,29982,29983,29984,29985,29987,29988,29988,29989,29989,29990,29991,29992,29992,29993]} 1. d4 d5 2. Nf3 Nf6 3. g3 e6 4. Bg2 Be7 5. c4 O-O 6. Qc2 dxc4 7. Qxc4 a6 {E06: Closed Catalan: Early deviations.} 8. Ne5 Nbd7 9. O-O Nxe5 {The position is equal.} 10. dxe5 Nd7 {[#]} 11. f4 $146 ({Predecessor:} 11. Bf4 g5 12. Bd2 Nxe5 13. Qc2 f5 14. Na3 Rb8 15. Rad1 Bd6 16. Qc1 h6 17. f4 {1-0 (42) Smyslov,V-Verlinsky,B Moscow 1945}) 11... c5 12. Qc2 Rb8 13. Nd2 b5 14. Ne4 Bb7 15. Be3 Qc7 16. h4 h6 17. g4 c4 18. g5 h5 19. Rad1 g6 20. Nf6+ Nxf6 21. gxf6 Bc5 22. Qc1 Qb6 ({Black should try} 22... Rfc8 $15) 23. Bxc5 ({White should play} 23. Bf2 $1 $11 Rfd8 24. Rxd8+ Rxd8 25. f5 Bxg2 26. Qh6) 23... Qxc5+ $15 24. Rf2 {Hoping for f5!} Bxg2 25. f5 {[#]} (25. Kxg2 $17 Qc6+ 26. Kg3) 25... Rfd8 $1 $19 26. Rxd8+ Rxd8 27. fxe6 $2 (27. Qh6 Qf8 28. Qxf8+ Kxf8 29. fxe6 fxe6 30. Rxg2) 27... Qxe5 $2 (27... Bc6 $19 28. e4 Qxe5 {[%mdl 64] Double Attack}) 28. e7 $17 {[#]} Rd4 29. Rxg2 {[%mdl 4096] Endgame KQR-KQR} (29. Qh6 {is a self mate.} Rd1+ 30. Kxg2 Qe4+ 31. Rf3 Qxe2+ 32. Rf2 Qg4+ 33. Kh2 Qg1+ 34. Kh3 Rd3+ 35. Qe3 Rxe3+ 36. Rf3 Rxf3#) 29... Re4 $2 {[%mdl 8192]} (29... Kh7 $17 30. Qe1 b4) 30. Qd2 $2 $40 {[%mdl 128] White is up to no good.} ({Only move:} 30. Qh6 $18 {[%csl Gf6][%cal Rh6g7]} Qxf6 31. Qf8+ Kh7 32. Rf2 Rg4+ 33. Kf1) 30... Kh7 $11 31. Rf2 {[%mdl 8192]} (31. Qd7 $11) 31... Qg3+ ({Less strong is} 31... Rxh4 32. Rg2 $19) (31... b4 $142 32. Rf3 Rxh4) 32. Kf1 $19 Rxh4 $4 {[%mdl 8192]} (32... Qxh4 $19 33. e3 Qh3+ 34. Ke1 g5) 33. Qd5 $18 Qe3 34. Qxf7+ {White mates.} Kh6 35. Qg7+ Kg5 36. Rg2+ Rg4 37. Rxg4+ hxg4 {KQ-KQ} 38. e8=Q ({Weaker is} 38. f7 Qf4+ 39. Kg1 Qg3+ 40. Kf1 Qf4+ 41. Kg2 Qe4+ 42. Kg1 Qe3+ 43. Kh1 Qh3+ 44. Kg1 Qe3+ 45. Kh2 Qh3+ 46. Kg1 Qe3+ $11) 38... Qxe8 39. f7 Qe4 40. f8=Q {[%csl Gf8][%cal Rg7h6]} Qh1+ 41. Kf2 g3+ 42. Kxg3 {[%cal Rg7e5]} Qh4+ 43. Kf3 {[%cal Rg7e5]} Qh3+ 44. Ke4 Qg4+ 45. Kd5 {[%csl Gf8][%cal Rg7h6] Weighted Error Value: White=0.43/Black=0.63} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.15"]
[Round "4.3"]
[White "Liang, Jason"]
[Black "Oberoi, Shelev"]
[Result "1-0"]
[ECO "C58"]
[WhiteElo "2342"]
[BlackElo "2161"]
[Annotator "TA"]
[PlyCount "127"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,127,19,26,12,57,56,73,72,95,96,124,125,127,117,100,95,87,94,89,93,97,85,95,89,89,76,60,65,98,93,104,95,111,113,130,116,121,112,119,114,122,116,126,127,121,91,121,115,123,123,123,126,301,301,295,283,333,300,306,292,301,270,402,402,408,389,412,397,527,540,529,514,591,624,615,471,419,434,500,471,964,935,942,856,1008,880,1260,1266,1191,1093,931,901,12839,1509,817,0,2434,12834,12834,12833,12828,12834,12833,1517,12839,12839,12843,12843,29985,29986,29988,29989,29989,29989,29993,29994]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ Bd7 7. Qe2 Be7 8. Nf3 {C58: Two Knights: 4 Ng5 d5 5 exd5 Na5 sidelines.} e4 9. Ne5 c6 10. dxc6 {White is better.} Nxc6 11. Bxc6 Bxc6 12. Nxc6 bxc6 13. Nc3 Qd4 14. O-O O-O 15. d3 exd3 16. Qxe7 {And now Be3 would win.} d2 {[#]} 17. Bxd2 $146 ({Predecessor:} 17. Qa3 dxc1=Q 18. Raxc1 {1-0 (18) Beveridge,C (2180)-Tibbert,P (1805) ICCF email 2016}) 17... Qxd2 18. Qe2 Qf4 19. Rad1 Qb4 20. Rb1 Rad8 21. Rfd1 Rxd1+ 22. Nxd1 Rd8 23. a3 Qf4 24. Ne3 h5 25. h3 Ne4 {Threatening ...Rd2.} 26. Rd1 Rxd1+ 27. Nxd1 g6 28. Qe3 Qd6 29. Qxe4 Qxd1+ $16 {[%mdl 4096] Endgame KQ-KQ} 30. Kh2 Qd2 31. Qe8+ ({Don't do} 31. Qxc6 $6 Qf4+ 32. g3 Qxf2+ 33. Qg2 Qd4 $11) 31... Kg7 32. Qe5+ ({Much less strong is} 32. Qxc6 Qf4+ 33. g3 Qxf2+ 34. Qg2 Qf6 $14) 32... Kg8 $2 (32... Kh7 $16 {was called for.}) 33. Qb8+ $18 Kg7 34. Qxa7 Qxc2 35. Qd4+ Kg8 {[#]} 36. b4 Qa2 37. Qe3 Qc2 (37... Qc4 $142 38. f3 Kh7) 38. h4 Qc4 39. g3 Qc2 40. Qa7 Qc3 41. Kg2 Kg7 42. Qe3 Qc4 43. Qe5+ Kg8 44. Qb8+ Kg7 45. a4 {[%cal Ba3a4,Ba4a5,Ba5a6][%mdl 32]} Qe4+ 46. Kh2 Qc2 {[#]} (46... g5 $142 47. hxg5 c5 48. bxc5 Qd4) 47. Qa7 $1 {[%cal Ra7d4]} Qe4 48. Qc5 Qe2 49. a5 f5 50. Qa7+ Kg8 51. a6 f4 52. gxf4 Qg4 53. Qb8+ (53. Qe3 $142 Kh7 54. Qe7+ Kg8 55. Qe8+ Kh7 56. Qf7+ Kh6 57. Qf6) 53... Kh7 54. Qa7+ $2 ({White should try} 54. f5 $18 {Threatens to win with Qc7+.} Qxh4+ 55. Kg1) 54... Kh6 $2 {[%mdl 8192]} (54... Kg8 $11) 55. Qe3 Qxh4+ 56. Kg2 Qg4+ 57. Qg3 {White wants to mate with Qxg4.} Qd7 58. Qf3 Qc8 59. b5 {[%cal Bb4b5,Bb5b6][%mdl 32]} h4 60. a7 Qb7 61. b6 {White mates.} Qc8 62. Kh2 Qb7 63. Qg4 Qxb6 64. Qxh4+ {Weighted Error Value: White=0.17/Black=0.41} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.15"]
[Round "4.4"]
[White "Wang, Tianqi"]
[Black "Posthuma, Joshua"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "2307"]
[BlackElo "2307"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,74,12,23,22,10,22,50,35,41,40,42,0,0,-10,-8,0,-6,-6,-6,0,16,23,16,-3,11,0,20,22,16,6,18,25,26,0,0,0,0,0,0,0,0,0,0,-7,0,0,-12,-22,-6,-114,-117,-109,-103,-102,-12,-6,-4,-6,0,-9,0,-14,0,-10,0]} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Qc7 6. Ne2 Bg4 7. O-O {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.} e6 8. Qe1 Bd6 {8...Nf6 gains popularity.} 9. f3 {White is slightly better.} Bf5 ({Don't blunder} 9... Bxh2+ $2 10. Kh1 $18) 10. Bxf5 exf5 ({Avoid the trap} 10... Bxh2+ $2 11. Kh1 $18) 11. Ng3+ (11. Bf4 $14) 11... Kf8 $11 12. Nxf5 Bxh2+ 13. Kh1 Bf4 14. Qh4 Bxc1 15. Rxc1 {[#]} g6 $146 ({Predecessor:} 15... Nge7 16. Ne3 Rd8 17. Na3 Ng6 18. Qh2 Qe7 19. Re1 Qg5 20. Rad1 Nf4 21. g3 Nh5 {½-½ (61) Schroeder,J (2571)-Stork,O (2187) Schwaebisch Gmuend 2019}) 16. Ne3 Qe7 17. Qf2 Nf6 18. Re1 {With the idea Nxd5!} Qd6 19. Nd2 Kg7 20. Qh4 Rhe8 21. Ndf1 Re6 22. Nc2 Rae8 23. Rxe6 Rxe6 24. Re1 Nh5 25. Rxe6 Qxe6 26. Nce3 Ne7 27. Kg1 Qd6 28. g4 Nf4 29. Qh2 Qf6 30. Qd2 {[#]} (30. Nf5+ $11 Nxf5 31. Qxf4) 30... Nh3+ $1 $17 {[%mdl 64] Discovered Attack} 31. Kg2 Qh4 32. Nc2 g5 ({Much worse is} 32... Ng5 $6 33. Qf4 $11) ({Black should try} 32... h5 $17 33. Qe1 Nf4+ 34. Kg1 Qg5) 33. Qe1 $1 $36 {[%cal Re1h4][%mdl 2048] White has good play.The position is equal.} Nf4+ 34. Kg1 Nh3+ 35. Kg2 {[#] Black must now prevent Qxh4.} Nf4+ 36. Kg1 Nh3+ 37. Kg2 {aiming for Qxh4.} Nf4+ {Weighted Error Value: White=0.10/Black=0.11} 1/2-1/2

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.15"]
[Round "4.5"]
[White "Wu, Rochelle"]
[Black "Mardov, Dimitar"]
[Result "0-1"]
[ECO "D36"]
[WhiteElo "2095"]
[BlackElo "2265"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,52,0,6,2,31,0,0,0,9,-17,-16,-32,-32,-34,-23,-33,-7,-9,-15,-57,-61,-148,-139,-314,-316,-278,-300,-591,-625,-712,-693,-757,-513]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Be7 7. Bd3 Nbd7 {[%cal Bb8d7,Bd7f8,Bf8e6][%mdl 32]} 8. Qc2 Nf8 9. Nge2 g6 10. O-O Ne6 11. Bh4 O-O 12. Rae1 {D36: Queen's Gambit Declined: Exchange Variation: Main line (5 Bg5 c6 6 Qc2).} b6 {[%cal Bb7b6,Bb6c5,Bc5c4][%mdl 32]} 13. f3 Bb7 14. Bf2 {The position is equal.} Rc8 {[#]} 15. h3 $146 ({Predecessor:} 15. Rd1 Re8 16. h3 c5 17. dxc5 bxc5 18. Bc4 Nc7 19. Nf4 Bd6 20. Qb3 Rb8 21. Be2 {0-1 (40) Vakhidov,J (2500)-Fridman,D (2633) London 2017}) 15... c5 {[#] Hoping for ...c4.} 16. dxc5 bxc5 17. Qd2 Qb6 18. e4 dxe4 19. fxe4 Rfd8 {White must now prevent ...Nxe4!} 20. Qe3 c4 ({Not} 20... Qxb2 $2 21. Rb1 $18) 21. Bb1 ({White should play} 21. Bc2 $15) 21... Qxb2 $17 22. e5 $2 {[#] Loses the game.} (22. a4 $17) 22... Nd5 $1 $19 {[%cal Rd5e3]} 23. Nxd5 Bxd5 ({Don't take} 23... Rxd5 24. Be4 $19) 24. Nc3 $2 (24. Qxa7 Bb4 25. Qxf7+ Kxf7 26. Bd4+ Kg7 27. Bxb2) 24... Bg5 {Black is clearly winning.} 25. Na4 Qb4 26. Qxa7 Ra8 {Weighted Error Value: White=0.57/Black=0.05} 0-1

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.15"]
[Round "4.6"]
[White "Wu, Derek"]
[Black "Park, Evan"]
[Result "1/2-1/2"]
[ECO "A04"]
[WhiteElo "2198"]
[BlackElo "2207"]
[Annotator "TA"]
[PlyCount "198"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,198,35,58,41,50,35,36,23,70,40,72,64,93,88,92,84,92,81,97,78,114,112,157,73,50,42,26,24,342,346,377,385,381,379,404,106,88,80,264,91,432,235,258,0,0,0,0,0,0,-19,0,0,0,0,0,-76,-75,-73,15,0,53,0,-28,-66,167,172,173,155,12816,9070,1024,10,10,7,11,11,11,11,14,11,301,282,227,0,72,51,51,14,14,18,81,33,33,33,33,0,32,14,32,32,32,32,32,32,32,32,33,24,24,0,0,0,24,0,0,0,32,0,24,0,0,0,0,0,0,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000]} 1. Nf3 f5 2. d3 Nf6 3. e4 d6 4. exf5 Bxf5 5. d4 g6 6. Bc4 {A04: Unusual lines after 1 Nf3 and King's Indian Attack.} Bg7 7. O-O d5 8. Bd3 {[#] White is slightly better.} Ne4 $146 ({Predecessor:} 8... O-O 9. Bxf5 gxf5 10. Nc3 Nc6 11. Ne2 Qd7 12. Nf4 e6 13. c3 Rae8 14. Nd3 Ne4 {1-0 (33) Munoz Santana,J (2425)-Pinal,N (2305) Santo Domingo 2016}) 9. Nh4 Be6 10. Nc3 Nxc3 11. bxc3 O-O 12. Qe2 Bd7 13. Bg5 Bf6 14. f4 c5 15. Qf3 $36 {[%mdl 2048] Keeping Black busy.} (15. dxc5 $6 Qa5 $11) 15... e6 16. Qg3 (16. Bxg6 $142 $1 hxg6 17. Nxg6) 16... Nc6 $16 17. Nxg6 hxg6 18. Bh6 Kf7 {[%mdl 8192]} (18... Ne7 $11 {and Black is okay.}) 19. Bxg6+ $18 (19. Qxg6+ Ke7 $11) 19... Ke7 20. f5 $1 e5 21. dxe5 Bxe5 22. Qf3 (22. Rfe1 $18 {is more deadly.} Kd6 23. Rxe5 {[%mdl 64] Clearance} (23. Bxf8+ Qxf8 24. Qf3 Qf6 $17) 23... Nxe5 24. Re1) 22... Kd6 $16 {aiming for ...Qh4!} 23. Rad1 $1 d4 $2 (23... Ne7 $2 24. Rfe1 $18) (23... Kc7 $16) 24. cxd4 $2 (24. Bxf8+ Qxf8 25. cxd4 cxd4 $11) (24. Bf4 $1 $18 {and the rest is easy.}) 24... Bxd4+ $2 {[%mdl 8192] [#]} (24... cxd4 $16 25. Rfe1 (25. Bxf8+ Qxf8 26. c3 Kc7 $11) 25... Qa5) 25. Kh1 (25. Rxd4+ $142 $1 {[%mdl 512]} cxd4 26. Bf4+ (26. Bxf8+ Qxf8 27. Qg3+ Kc5 $14) 26... Kc5 27. Qa3+ Nb4 28. c3 dxc3 29. Qxc3+ Kb5 30. a4+ Ka6 31. Qc4+ (31. Qxb4 Qb6+ 32. Qxb6+ Kxb6 $18) 31... b5 32. axb5+ (32. Qxb4 Qb6+ 33. Kh1 bxa4 $14) 32... Bxb5 33. Ra1+ (33. Qxb4 Bxf1 34. Kxf1 Qa5 $11) 33... Kb7 34. Qxb4 Qb6+ 35. Kh1) 25... Kc7 $18 26. c3 $2 (26. Bxf8 $6 Qxf8 27. f6 Ne5 $16) (26. Rfe1 $18) 26... Be5 $1 $11 {Black wants to play ...Qh4!} (26... Ne5 $2 27. Qg3 $18) 27. Rd5 {Strongly threatening Rfd1.} Qh4 {[%csl Ge5][%cal Rh4h2][%mdl 64] Double Attack} 28. Rxe5 $1 Qxh6 (28... Nxe5 $6 29. Bf4 $16) 29. Rxc5 Rad8 30. Qg3+ $1 Kc8 31. h4 Rf6 32. Qg5 (32. Rd1 $11) 32... Qf8 $17 33. Rc4 Kb8 (33... b5 $17 34. Rcf4 Qd6) 34. h5 Ne7 ({Black should try} 34... Ka8 $11) 35. Rh4 (35. Rd4 $14) 35... Rc8 $11 (35... Nxf5 $2 36. Rd4 $1 $18) (35... Nxg6 36. hxg6 Rxf5 37. Rxf5 $16) 36. Rf3 Nxg6 $2 (36... Bc6 $15 {keeps the upper hand.} 37. Rff4 Ka8) 37. hxg6 $18 {And now g7 would win.} Rxf5 {[#]} 38. g7 $1 {[%mdl 512]} Qf7 (38... Rxg5 $2 {loses.} 39. gxf8=Q (39. gxf8=N Bc6 $15) 39... Rxf8 40. Rxf8+ $18) (38... Rxf3 $16 39. gxf8=R (39. gxf8=Q Rfxf8 40. Kg1 Bc6 $16) 39... Rfxf8) (38... Rxf3 39. gxf8=R) 39. Rxf5 Bxf5 40. Rf4 $2 (40. Rh8 $18 {Qf4+ would kill now.} Be6 41. Qg3+ Qc7 42. Rxc8+ Kxc8 43. g8=Q+ Bxg8 44. Qxg8+ Kd7 45. Qf7+ Kd6 46. Qxc7+ Kxc7 47. c4) 40... Rg8 $11 41. Rxf5 Qxg7 42. Qxg7 Rxg7 {[%mdl 4096] Endgame KR-KR} 43. Kh2 Kc7 44. Kh3 Kd6 $2 {[%mdl 8192]} (44... Rh7+ $1 $11 45. Kg3 Kd6) 45. g4 $18 Ke6 46. Rf3 $2 (46. Kh4 $1 $18) 46... Rg8 (46... b5 $1 $11 {remains equal.}) 47. Kh4 Rh8+ 48. Kg5 Rg8+ 49. Kf4 Rf8+ (49... b6 $11) 50. Ke4 (50. Kg3 {feels hotter.} Rg8 51. a4 a6 52. Rf4 b5 53. a5) 50... Rc8 51. Re3 Kf6 52. Kd4 b5 53. g5+ {[%mdl 64] Deflection, Decoy} Kxg5 54. Re5+ {[%mdl 64] Double Attack} Kf6 55. Rxb5 Ke6 56. Re5+ Kd6 57. Rd5+ Ke6 58. c4 {Hoping for c5.} Rh8 59. Ra5 Ra8 60. Rd5 Rh8 61. Kc5 Rc8+ 62. Kb4 a6 63. Rh5 {Black must now prevent Rh6+.} Kd7 64. Rh6 Rb8+ 65. Kc5 Rc8+ 66. Kd5 Rg8 67. Rxa6 $2 {[%mdl 8192]} (67. Rh7+ $11 Kc8 68. a4) 67... Kc7 {Mate.} 68. Kc5 Rg5+ 69. Kb4 Rg1 70. Rh6 Kb7 71. a4 Rg2 72. Kb5 Rb2+ 73. Kc5 Rg2 74. Rh7+ Ka6 75. Kc6 Rg6+ 76. Kc7 Rg5 77. Kc6 Rg6+ 78. Kc5 Rg5+ 79. Kb4 Rg1 80. Rh6+ Kb7 81. a5 Rg2 82. Kb5 Rb2+ 83. Kc5 Rg2 84. Rb6+ Kc7 85. Kb5 {[#]} Rb2+ $1 86. Ka6 Rh2 87. Ka7 Rh4 88. Rb4 Rg4 89. Rb7+ Kc6 90. Rb8 Kc7 91. Rb4 Rh4 92. a6 Rg4 93. Rb7+ Kc6 94. Rh7 Rxc4 95. Kb8 Rb4+ 96. Kc8 Rg4 {[%cal Rg4g8]} 97. Rh6+ {[#]} Kb5 $1 98. a7 Rg8+ 99. Kc7 Rg7+ {[%mdl 32768] What a fight!  Weighted Error Value: White=0.48/Black=0.55. An unexpected result.} 1/2-1/2

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.15"]
[Round "4.7"]
[White "Eckert, Doug"]
[Black "Perrine, Dalton"]
[Result "1-0"]
[ECO "A58"]
[WhiteElo "2151"]
[BlackElo "2247"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,63,57,55,67,53,58,66,66,60,70,68,67,79,51,33,40,31,64,41,43,26,40,0,0,0,115,115,121,119,138,139,128,129,150,121,225,228,379,370,479,459,445,430,427,449,822,841,1093,1093,29994,369,29995,29996]} 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. e4 Qa5 {A58: Benko/Volga Gambit: Lines with 5 bxa6.} 8. Bd2 {aiming for Bxa6.} Bxf1 9. Kxf1 d6 {White is slightly better.} 10. g3 Bg7 11. Kg2 O-O 12. Nf3 Na6 13. Qe2 Rfb8 14. Rab1 Nd7 15. Rhc1 Nc7 16. a3 {[#]} Qa6 $146 ({Predecessor:} 16... Rb7 17. Ne1 Rab8 18. Rc2 Rb3 19. Nd3 Qa8 20. Nc1 R3b6 21. b3 e6 22. dxe6 fxe6 {0-1 (59) Ballon,G (2190)-Lang,F (1964) Seefeld 2008}) 17. Qxa6 Rxa6 18. Bg5 Bxc3 (18... f6 $11 {remains equal.} 19. Be3 f5) 19. bxc3 $16 {Threatens to win with Rxb8+.} Rc8 20. Bxe7 f6 21. Rb7 Kf7 {[#]} 22. Bd8 {[%cal Rd8c7][%mdl 576] Deflection} Rxd8 23. Rxc7 Rxa3 (23... Ke7 $16 {is a better defense.}) 24. Nd2 $18 Ke7 $2 (24... Ra4 {might work better.} 25. Rb1 Ke8) 25. Nc4 Ra4 26. Nb6 {[%cal Rb6a4]} Ra6 27. Nc8+ Kf8 28. Rb1 Ne5 (28... f5 $142 29. exf5 gxf5) 29. Rbb7 h5 {[#]} 30. Rh7 $1 {[%cal Rh7h8]} Kg8 (30... Rd7 31. Rhxd7) 31. Rbg7+ Kf8 32. Ne7 {[%csl Ge7][%cal Rg7g8] Weighted Error Value: White=0.07/Black=0.49} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.15"]
[Round "4.8"]
[White "Resika, Nathan"]
[Black "Yanayt, Eugene"]
[Result "0-1"]
[ECO "A26"]
[WhiteElo "2155"]
[BlackElo "2100"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,56,19,28,23,21,-24,-25,-35,-17,-33,9,-22,-49,-95,-91,-116,-25,-43,0,-25,0,-49,7,0,0,-114,-79,-82,-64,-342,-355,-317,-295,-638,-654,-862,-855,-849,-850]} 1. Nf3 g6 2. c4 Bg7 3. g3 e5 4. d3 Nc6 5. Bg2 f5 6. O-O Nf6 7. Nc3 O-O 8. Rb1 d6 9. b4 h6 10. b5 Ne7 11. Qc2 {A26: English Opening vs King's Indian with ...Nc6 and d3.} g5 12. c5 Be6 13. Ba3 {Black has an edge.} Rf7 14. Rfc1 {[#]} f4 $146 ({Predecessor:} 14... Ne8 15. cxd6 cxd6 16. Nd2 Qd7 17. Qa4 d5 18. Bxe7 Rxe7 19. b6 Qxa4 20. Nxa4 axb6 21. Nxb6 Rxa2 22. Nxd5 {1-0 (30) Mastrovasilis,D (2570)-Kotrotsos,V (2339) Kalamata 2005}) 15. cxd6 cxd6 16. Nd2 d5 17. b6 Nc6 (17... axb6 $17 18. Bxe7 Rxe7) 18. bxa7 $11 Nd4 19. Qd1 ({Reject} 19. Qa4 b6 $17) (19. Qb2 $5 {[%cal Ra3c5]}) 19... fxg3 20. hxg3 Qa5 (20... Rxa7 $15 21. Bc5 Ra6) 21. Bd6 Ng4 22. Nf3 (22. Nb3 $1 $11 {remains equal.} Qxa7 23. Nxd4 Nxf2 24. Qa4 exd4 25. Qxa7 Rxa7 26. Nxd5) 22... e4 (22... Nxf2 {looks sharper.} 23. Qe1 Rxf3 24. Nb5 Qxe1+ 25. Rxe1 Nxb5 26. Rxb5 Rf7) 23. dxe4 Qxa7 {Hoping for ...Nxf2!} 24. e3 $2 {[%mdl 8192] [#] Now White is beyond hope.} ({But not} 24. exd5 $2 Nxf2 $1 25. Qf1 Bd7 $19) (24. Nxd4 $1 $15 Nxf2 25. Qb3 Bxd4 26. Nb5 Nd3+ 27. Kh2 Nxc1 28. Rxc1) 24... Nxe3 $1 $19 {[%mdl 512]} 25. fxe3 Nxf3+ 26. Bxf3 $2 (26. Kh1 dxe4 27. Nb5 Qxa2 28. Rc2) 26... Qxe3+ {[%mdl 64] Double Attack. Black is clearly winning.} 27. Kg2 Bxc3 28. Rc2 {[#]} Rxf3 $1 {[%mdl 576] Decoy.  Weighted Error Value: White=0.84/Black=0.19} 0-1

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.15"]
[Round "5.1"]
[White "Mishra, Abhimanyu"]
[Black "Sarkar, Justin"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2354"]
[BlackElo "2366"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,91,6,4,8,10,23,25,14,9,23,30,24,86,68,76,17,39,40,37,39,39,23,26,24,33,31,29,32,41,18,14,24,11,8,31,31,27,25,31,20,34,26,21,29,70,67,48,61,66,41,404,400,404,387,406,386,370,372,464,433,503,511,483,470,691,684,859,847,878,799,808,754,704,614,11872,11872,2574,1064,5610,1874,6545,1857,1143,1038]} 1. d4 Nf6 2. c4 e6 3. Nf3 a6 4. Nc3 d5 5. c5 b6 6. cxb6 {D37: Queen's Gambit Declined: 5 Bf4.} c5 7. Bf4 {Hoping for Bc7.} Bd6 8. Bxd6 {White has an edge.} Qxd6 {[#]} 9. dxc5 $146 ({Predecessor:} 9. Qb3 Nbd7 10. Na4 c4 11. Qa3 Qxa3 12. bxa3 Rb8 13. Rb1 Bb7 14. e3 Ke7 15. Be2 {0-1 (23) Boyer,M (2295)-Favarel,J (2366) Condom 2019}) 9... Qxc5 10. Qd4 Qxd4 (10... Qe7 $11) 11. Nxd4 $16 e5 12. Nf3 ({White should play} 12. Nb3 $16) 12... d4 13. Na4 {[#] Nc5 is the strong threat.} Nbd7 14. g3 Bb7 15. Bg2 Rb8 16. Rc1 O-O 17. O-O Bd5 18. b3 Rfe8 19. Rc7 Nxb6 20. Nxb6 Rxb6 21. Rfc1 Bxf3 22. Bxf3 e4 23. Bg2 Kf8 24. Kf1 Rd6 25. R1c6 Rdd8 {Black wants to play ...d3.} 26. Rc2 ({Don't play} 26. Rxa6 d3 $17) 26... Nd5 {[#] Threatens to win with ...d3.} 27. R7c4 $1 Nc3 28. Rd2 f5 29. e3 dxe3 $2 {[%mdl 8192] Loses the game.} (29... Nb1 $1 $14 30. Rd1 Nc3) 30. Rxd8 $18 Rxd8 {[%cal Rd8d1]} 31. Rxc3 exf2 $14 {[%mdl 4096] Endgame KRB-KR} 32. Ke2 Ke7 33. Rc2 h5 34. Kxf2 {White is clearly winning.} g5 35. Bf1 a5 36. Be2 Ke6 (36... h4 $142 37. gxh4 gxh4) 37. Ke3 $18 h4 38. gxh4 gxh4 39. Kf4 Rd4 40. Rc6+ Kd5 41. Rc1 Ke6 {Now ...Rd2 and Black clings on.} 42. Rd1 Rb4 43. Bc4+ Kf6 44. Rd6+ Ke7 45. Re6+ Kd7 46. Kxf5 {Weighted Error Value: White=0.07/Black=0.42} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.15"]
[Round "5.2"]
[White "Liang, Jason"]
[Black "Sinha, Sahil"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "2342"]
[BlackElo "2324"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,108,19,28,18,23,20,46,8,28,14,81,14,33,0,0,0,7,-20,-2,-9,-8,-14,0,0,0,-52,-4,-73,-58,-165,-160,-158,-159,-133,-67,-63,-70,-70,-52,-73,0,0,124,-68,-71,-72,-70,-79,-75,-147,-147,-203,-32,-33,-31,-33,-31,-30,-31,-32,-32,-32,-32,-32,-23,-30,-26,-25,0,0,218,0,0,0,0,-1341,-1194,-4906,-2235,-12839,-12842,-12843,-12843,-29989,-29990,-29990,-12839,-12840,-12840,-29984,-29985,-29985,-29986,-29986,-12845,-12845,-12845,-12846,-12846,-12850,-12850]} 1. d4 Nf6 2. Bg5 Ne4 3. h4 c5 4. d5 Nxg5 5. hxg5 g6 6. e4 {A45: Trompowsky Attack.} Bg7 7. c3 d6 8. Nd2 {White is slightly better.} a6 9. a4 b6 (9... h6 $11) 10. Ngf3 (10. f4 $1 $16) 10... Nd7 {[#]} 11. g3 $146 ({Predecessor:} 11. Bd3 Qc7 12. Qe2 Bb7 13. Rh3 O-O 14. Qe3 Rfe8 15. Qf4 Nf8 16. Nh2 Bc8 17. Rf3 {0-1 (39) Morales Camacho,J (2230)-Vidarte Morales,A Zaragoza 1993}) 11... Rb8 12. Nc4 Qc7 13. Qc1 b5 14. axb5 axb5 15. Na5 c4 16. Nc6 Rb6 17. Ra8 (17. Qe3 $11) 17... Nc5 {White must now prevent ...Rxc6.} (17... Rxc6 $5 18. dxc6 Qxc6 $11 {[%mdl 64] Double Attack}) 18. Qf4 (18. Nfd4 $11) 18... e5 (18... Rxc6 $5 19. dxc6 Qxc6 $15) 19. Qh4 (19. Qe3 $15) 19... Ra6 20. Rxa6 Bxa6 21. Nd2 Na4 ({Better is} 21... Bb7 $17 22. b3 Bxc6 23. dxc6 cxb3 24. Bxb5 h5) 22. b3 $1 $15 {[%cal Rb3a4]} cxb3 23. Nxb3 h5 24. Bd3 Qb6 (24... Bc8 $17 25. Bxb5 Nxc3) 25. O-O $11 Nxc3 (25... Bc8 $11 {keeps the balance.}) 26. Nb4 $2 (26. Qh3 $16 Na4 27. Rb1) 26... Bb7 $15 27. Qh3 O-O 28. Rc1 Rc8 29. Qd7 (29. Nc6 $142 Rxc6 30. dxc6 Qxc6 31. Qf1) 29... Bf8 $1 $17 30. Kg2 (30. Nc6 $17 b4 31. Nba5) 30... Rd8 $2 31. Qh3 $15 Na4 32. Nc6 Bxc6 33. dxc6 Nc5 34. Nxc5 dxc5 35. Bxb5 Be7 36. Rb1 Bxg5 {aiming for ...c4!} 37. Qh1 Kg7 {Threatening ...Rd2.} 38. Ba4 Qa5 (38... Qa6 {seems wilder.} 39. Bb5 Qc8 40. Qe1 Rd4 41. Qe2 h4) 39. Bb3 Rd4 $2 {[#]} (39... Rd2 $11 40. Qe1 c4 41. Bxc4 Qc5 {[%mdl 64] Double Attack}) 40. Bd5 $2 (40. Bxf7 $1 $18 {[%mdl 512]} Rb4 41. Rd1 $1) 40... c4 $36 {[%mdl 2048] Threatens to win with ...c3. Black is pushing.} 41. Kh3 {Hoping for Rb7.} c3 {And now ...c2 would win.} 42. Rb7 $2 {[%mdl 8192]} (42. Qf3 $11 Rxd5 43. exd5) 42... c2 $19 43. Qf3 {[#]} Bf4 $1 {[%mdl 512]} 44. Rxf7+ (44. Bxf7 c1=Q) 44... Kh6 45. gxf4 c1=Q {( -> ...Qae1)} 46. Qg2 Rd3+ 47. f3 {[#]} Qxf4 $1 48. Rxf4 exf4 {[%mdl 4096] Endgame KQR-KQB} 49. Bf7 g5 50. Bxh5 Qe1 {[%csl Gg5][%cal Re1h4][%mdl 64] Zwischenzug} ({And not} 50... Kxh5 51. Qg4+ Kh6 52. Qe6+ Kg7 53. Qe7+ Kh8 54. Qe8+ Kh7 55. Qf7+ Kh8 56. Qf8+ Kh7 57. Qf7+ Kh6 58. Qe6+ Kg7 59. Qe7+ Kh8 60. Qf8+ Kh7 61. Qf7+ $11) 51. Kg4 Qg3+ (51... Qh4+ $142 52. Kf5 Qxh5 53. Qg4 Qg6+ 54. Ke5 Qd6+ 55. Kf5 Qf8+ 56. Ke5 Qd6+ 57. Kf5 Qf8+ 58. Ke5 Qd6+) 52. Qxg3 {Black is clearly winning.} fxg3 53. c7 Rc3 ({Worse is} 53... g2 54. c8=Q $11) 54. Kxg3 Kxh5 {Weighted Error Value: White=0.83/Black=0.42} 0-1

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.15"]
[Round "5.3"]
[White "Mardov, Dimitar"]
[Black "Wang, Tianqi"]
[Result "1-0"]
[ECO "A43"]
[WhiteElo "2265"]
[BlackElo "2307"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,69,41,47,0,0,0,0,0,0,0,0,0,0,-23,-10,-44,-19,-7,-10,-16,0,0,37,27,41,31,29,0,11,-6,0,0,0,0,0,0,0,17,34,38,27,0,0,-87,53,-58,-45,-133,13,10,180,30,29,32,46,42,65,49,158,83,900,883]} 1. d4 Nf6 2. Nf3 c5 3. d5 b5 4. Bg5 d6 5. Bxf6 exf6 6. a4 {A43: Schmid Benoni.} b4 7. e4 g6 8. Bb5+ {The position is equal.} Nd7 9. Nbd2 Bg7 10. O-O O-O 11. Nc4 {[#]} Ne5 $146 ({Predecessor:} 11... Nb6 12. Nxb6 Qxb6 13. Re1 Bb7 14. Rb1 a6 15. Bf1 Rfe8 16. Nd2 Re7 17. Nc4 Qc7 {½-½ (61) Doettling,F (2360)-Gershon,A (2460) Oropesa del Mar 1998}) 12. Nfd2 a6 13. Nxe5 $1 fxe5 (13... axb5 $5 14. Nc6 $8 Qb6 $11) 14. Be2 f5 15. a5 Ra7 16. c3 bxc3 17. bxc3 Bh6 18. Bd3 Qh4 19. g3 Qd8 20. exf5 gxf5 21. Nc4 e4 22. Bc2 Qf6 23. Rb1 Rg7 24. Rb6 Bf4 25. Kh1 Be5 {Hoping for ...f4.} 26. Qh5 (26. Rg1 $11) 26... Rd8 (26... f4 $1 $17 {[%cal Rf4g3]} 27. Qxe5 (27. Bxe4 $2 fxg3 28. Nxe5 gxf2 $19) 27... dxe5 28. Rxf6 Rxf6) 27. f3 (27. Nxe5 $14 Qxe5 {[%mdl 64] Double Attack} 28. c4) 27... Bxg3 $1 $15 28. fxe4 {[#]} ({White should try} 28. hxg3 $15 Rg6 29. Kg2 (29. fxe4 $2 Rh6 $19)) 28... Qxc3 ({Better is} 28... Rg5 $1 $17 {[%cal Rg5h5]} 29. Qe2 Qh6) 29. Qe2 $36 {[%mdl 2048] White has the initiative.} Bh4 $2 (29... f4 $11 {and Black is okay.}) 30. Rxd6 (30. Nxd6 $18 f4 31. Nxc8 Rxc8 32. Rxf4 Qe1+ 33. Qxe1 Bxe1 34. Rxa6) 30... Rf8 {White must now prevent ...fxe4.} 31. exf5 {Threatens to win with Nb6.} Bf6 32. Qd3 Qxd3 33. Bxd3 Bb7 {[#]} ({Black should play} 33... Bd4 $14) 34. Nb6 (34. Rg1 $142 $1) 34... Rd8 $2 {[%mdl 8192]} 35. Rxf6 {Weighted Error Value: White=0.30/Black=0.27} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.15"]
[Round "5.4"]
[White "Colas, Joshua"]
[Black "Posthuma, Joshua"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "2280"]
[BlackElo "2307"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,93,21,32,25,31,40,34,40,39,86,51,50,36,62,43,87,72,70,47,167,52,164,145,256,189,284,243,366,380,383,381,622,602,601,612,610,581,846,808,816,733,866,865,836,820,798,794,772,281,286,286,277,269,247,177,581,592,592,569,522,384,29987,29988,29988,899,855,851,736,620,5377,736,12840,12840,29985,29986,29987,29977,29988,29989,29989,29990]} 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. c3 Bd6 7. Bd3 O-O 8. Qc2 (8. Ne2 {looks sharper.} Re8 9. O-O Na6 10. Bf4 Nc7 11. Qd2) 8... Re8+ {B15: Caro-Kann: 3 Nc3: 3...g6 and 3...dxe4 4 Nxe4 Nf6 5 Nxf6+ exf6.} 9. Ne2 h5 10. O-O h4 {White is slightly better.} 11. h3 Qc7 {[#]} 12. Kh1 $146 ({Predecessor:} 12. Bd2 Nd7 13. c4 Qd8 14. Rfe1 Nf8 15. Rad1 Bc7 16. d5 cxd5 17. cxd5 Bd7 18. Qc4 {½-½ (36) Xiong,J (2708)-Najer,E (2635) Douglas 2019}) 12... Nd7 13. Ng1 c5 14. Nf3 g5 15. Bd2 (15. d5 {feels hotter.} Kg7 16. Qd1 Rh8 17. Bd2 a6 18. c4) 15... Nf8 16. c4 Ne6 {[#] White stays focused until the end.} (16... cxd4 $14 17. Nxd4 Bd7) 17. Rae1 (17. d5 $1 $18 {[%cal Rd5e6]}) 17... Bd7 (17... cxd4 $14 18. Nxd4 {[%mdl 64] Pin} Bd7 19. Bh7+ Kh8) 18. d5 $18 Nf4 (18... Nd4 $16 19. Nxd4 cxd4) 19. Bh7+ Kg7 (19... Kf8 $142 20. Bc3 Rxe1 21. Rxe1 Qc8) 20. Bc3 b5 (20... Ng6 $142) 21. Nxg5 bxc4 22. Bf5 {Threatens to win with Bxd7.} ({Don't take} 22. Bg8 Nd3 $18) 22... Rxe1 $2 (22... Re5) 23. Rxe1 Re8 24. Rxe8 Bxe8 {[#]} 25. Bd7 $1 {[%mdl 512] Qh7+ would kill now.} Kf8 (25... Nd3 26. Bxe8) 26. Nh7+ {[%mdl 64] Double Attack} Ke7 27. Qe4+ Kxd7 28. Nxf6+ {[%mdl 64] Double Attack} Kc8 29. Nxe8 Qe7 30. Nxd6+ Qxd6 31. Be5 $2 (31. Qe8+ Qd8 32. Qc6+ {[%mdl 64] Double Attack} Qc7 33. Qxc7+ Kxc7 34. Be5+ {[%mdl 64] Double Attack} Kd8 35. Bxf4) 31... Nd3 32. Qg4+ ({Not} 32. Bxd6 Nxf2+ 33. Kg1 Nxe4 $11) 32... Qd7 33. Qxh4 Qxd5 34. Bg3 Ne1 $2 (34... Kd7 {is tougher.} 35. Qf6 Qe6) 35. f3 Nd3 36. Qe7 {[%csl Gg3][%cal Re7c7]} Qd7 37. Qe4 {[%cal Re4a8]} Qd4 $2 (37... Kd8 $18 38. Qxc4 Ke8) 38. Qe8+ Kb7 39. Qxf7+ (39. Qb8+ $142 Ka6 40. Qc8+ Kb6 41. Qc7+ Kb5 42. Qb7+ Ka4 43. Qa6+ Kb4 44. Bc7) 39... Ka6 40. Qe6+ Kb7 41. Kh2 Qxb2 42. Qxc4 (42. Qd7+ $142 Ka6 43. Bc7) 42... Nc1 43. Qd5+ Kb6 44. Qd6+ {White mates.} Ka5 45. Qxc5+ Ka4 46. Qxa7+ Kb4 47. Qb6+ {Weighted Error Value: White=0.33/Black=0.90} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.15"]
[Round "5.5"]
[White "Chiu, Isaac"]
[Black "Eckert, Doug"]
[Result "1/2-1/2"]
[ECO "A14"]
[WhiteElo "2209"]
[BlackElo "2151"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,72,0,-11,0,0,0,0,0,0,0,0,0,0,-12,-8,-12,-23,-17,-25,0,-7,-14,-77,-55,-67,117,-28,-14,-89,-58,-62,-60,-81,-55,-102,-97,-137,-120,-120,-126,-102,0,-114,-56,-41,-35,-68,0,0,0,0,0,0,0,0,0]} 1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. b3 c5 7. Bb2 d4 8. e3 Nc6 9. exd4 cxd4 10. Re1 Ng4 {A14: English Opening: 1...e6 with b3 by White.} 11. Ba3 f6 12. Bxe7 Qxe7 13. d3 e5 14. a3 a5 {[#]} 15. Qc2 $146 ({Predecessor:} 15. Nbd2 Nh6 16. Qc2 Nf7 17. c5 Be6 18. Rab1 Na7 19. Nxd4 exd4 20. Bd5 Nb5 21. Rxe6 {0-1 (32) Riemelmoser,F (2338)-Buhmann,R (2567) Austria 2017}) 15... Be6 16. Nbd2 Nh6 17. Qb2 Nf7 18. Rec1 b6 19. Ne1 Rac8 20. Nc2 (20. b4 $11) 20... Ng5 $17 21. b4 f5 $2 (21... Nh3+ $15 {stays ahead.} 22. Bxh3 Bxh3) 22. Re1 (22. f4 $16 Nf7 23. Re1) 22... f4 $11 23. Ne4 (23. b5 $11 {keeps the balance.} Qf6 24. bxc6 fxg3 25. f3) 23... f3 24. Nxg5 Qxg5 25. Bf1 Qh5 26. Qc1 Rce8 27. bxa5 bxa5 ({Reject} 27... Nxa5 $6 28. Qb2 $11) 28. Rb1 {[%cal Ba1b1,Bb1b6,Bb6c6][%mdl 32]} Rf6 29. Rb6 Bf5 (29... Bg4 $17 {White should prevent ...g5.} 30. Re4 g5 31. Nxd4 exd4 32. Rxe8+ Qxe8 33. Qxg5+ Qg6 34. Qd5+ Kh8) 30. Qd2 (30. Qb2 $11 {remains equal.}) 30... Rh6 (30... g5 $17 {aiming for ...Rh6.} 31. Nxd4 {[#]} Rh6 $1) 31. h4 $15 Rg6 32. Kh2 Rg4 33. Rxc6 $11 {The position is equal.} Rxh4+ 34. gxh4 Qxh4+ 35. Kg1 {[#] Strongly threatening Re4.} Qg4+ 36. Kh2 {Threatens to win with Re4.} Qh4+ {Weighted Error Value: White=0.28/Black=0.26} 1/2-1/2

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.15"]
[Round "5.6"]
[White "Park, Evan"]
[Black "Wu, Rochelle"]
[Result "0-1"]
[ECO "B78"]
[WhiteElo "2207"]
[BlackElo "2095"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,102,29,45,31,34,0,0,0,0,0,0,0,0,0,28,21,25,-44,-57,-71,-37,-29,-36,-27,-35,-108,-78,-152,-18,-10,0,0,0,0,0,-75,-93,-88,-87,-72,0,-1142,-1120,-1002,-768,-545,-350,-341,-333,-337,-318,-319,-334,-332,-243,-520,-520,-475,-419,-408,-367,-353,-424,-1116,-1058,-959,-681,-5386,-6307,-29974,-460,-29983,-29974,-29989,-29990,-29995,-29996,-29996,153,-29997,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Bd7 10. O-O-O Rc8 11. Bb3 Nxd4 $1 {[%mdl 4] is more profitable than 11...Ne5 at the moment.} 12. Bxd4 b5 $1 13. a3 {B78: Sicilian Dragon: Yugoslav Attack, 9 Bc4 Bd7 10 0-0-0 Rc8.} a5 14. h4 b4 15. axb4 {The position is equal.} axb4 16. Nd5 Nxd5 17. Bxg7 ({But not} 17. Bxd5 Qa5 $17) 17... Kxg7 $40 {[%mdl 128] Black attacks.} 18. exd5 Qa5 {[%cal Ra5a1]} (18... Kg8 {seems wilder.} 19. h5 Bf5 20. hxg6 Bxg6 21. Qxb4 Rb8) 19. Qd4+ Kg8 20. Kd2 (20. h5 $11) 20... e5 $1 $15 {[%cal Re5d4] [#]} 21. dxe6 $146 ({Predecessor:} 21. Qe3 f5 22. Ra1 Qb5 23. Qa7 Rfd8 24. Ra5 Qb8 25. Rha1 Kf8 26. Qxb8 Rxb8 27. Ra7 {1-0 (36) Gaehwiler,G (2416)-Gerber,R (2312) Graechen 2017}) 21... Bxe6 22. Bxe6 fxe6 23. Rhe1 Rf5 24. Ke2 (24. Ra1 $15 Qc7 25. Ke2) 24... Rd5 25. Qf6 (25. Qg4 $142 Re5+ 26. Kf1) 25... Re5+ (25... Rxc2+ $17 26. Kf1 Qa6+ 27. Kg1 Qa7+ 28. Kh2 Qf7 29. Qd8+ Qf8 30. Qxf8+ Kxf8 31. Rxd5 exd5) 26. Kf1 $11 Qa6+ 27. Rd3 $1 b3 (27... Rxc2 $5 28. Qd8+ $8 Kg7 29. Qe7+ Kg8 30. Qd8+ Kg7 31. Qe7+ Kg8 32. Qd8+ $11) 28. Rxe5 dxe5 {[%mdl 4096] Endgame KQR-KQR} 29. Kg1 (29. c4 $1 $11 {keeps the balance.} Qxc4 30. Kf2) 29... Rf8 $17 ({Of course not} 29... bxc2 $6 30. Rd8+ Rxd8 31. Qxd8+ Kg7 32. Qc7+ Kf6 33. Qxc2 $11) 30. Qg5 bxc2 31. Rc3 Rc8 ({Black should try} 31... e4 $17 32. Rxc2 exf3) 32. Rxc8+ $4 {[%mdl 8192]} (32. Kh2 $11) 32... Qxc8 $11 {KQ-KQ} 33. Qc1 Qc4 {aiming for ...Qd4+.} 34. Kf2 Qxh4+ 35. Ke2 {[#]} Qc4+ 36. Kd2 e4 37. fxe4 Qxe4 38. Qf1 e5 39. g3 $2 (39. Kc1) 39... h5 $19 40. b3 c1=Q+ {[%mdl 64] [#] Decoy} 41. Kxc1 Qe3+ 42. Kb2 Qxg3 43. Qc4+ (43. b4 $142 Qf4 44. Qb5) 43... Kg7 44. b4 h4 {And now ...h3 would win.} 45. b5 {If only White now had time for Qc7+....} h3 46. Qc6 Kh6 (46... Qf2+ $142 47. Kb1 Qg1+ 48. Kb2 h2 49. Qc7+ Kh6 50. Qxe5 h1=Q 51. Qh8+ Kg5 52. Qe5+ Kg4 53. Qe6+ Kf4 54. Qf6+ Ke4 55. Qc6+ Ke5 56. Qc7+ Ke6 57. Qc8+ Kd6 58. Qf8+ Kd5 59. Qg8+ Kc5 60. Qc8+ Kxb5 61. Qd7+ Qc6 62. Qd3+ Kb6 63. Qd8+ Ka6 64. Qd3+ Qb5+ 65. Qxb5+ Kxb5 66. Kb3 Qe3+ 67. Kc2 Kc4 68. Kd1 Qf2 69. Kc1 Kc3 70. Kd1 Qf1#) 47. Qc7 (47. b6 $19 Qg2+ 48. Qxg2 hxg2 49. b7) 47... h2 48. b6 Qf2+ 49. Ka3 h1=Q 50. Qxe5 Qf6 $2 51. b7 $2 Qh5 $2 {[%mdl 32768] Weighted Error Value: White=1.02/Black=0.44. Loss on time!?} 0-1

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.15"]
[Round "5.7"]
[White "Yanayt, Eugene"]
[Black "Wu, Derek"]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "2100"]
[BlackElo "2198"]
[Annotator "TA"]
[PlyCount "121"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,121,0,0,0,0,0,0,0,-12,5,5,8,0,10,0,19,17,15,0,8,-5,0,0,11,13,36,37,27,7,21,22,16,37,27,26,29,12,12,16,15,18,23,2,78,78,78,64,77,77,80,81,97,21,21,44,132,125,128,134,125,120,176,176,177,177,360,353,347,357,355,356,352,317,443,328,278,336,418,279,421,262,643,632,771,761,708,668,560,470,854,862,720,524,660,454,1941,462,2352,1983,29980,29981,29981,29982,29982,29983,29983,29984,29984,422]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. Qc2 c5 7. dxc5 Qa5+ 8. Nc3 $1 {The main line 8.Nc3 scores better than 8.Nbd2.} dxc4 {E06: Closed Catalan: Early deviations.} 9. O-O Qxc5 {[#]} 10. Ne4 $146 ({Predecessor:} 10. Bg5 Nc6 11. Bxf6 Bxf6 12. Ne4 Qf5 13. Rfd1 Bxb2 14. Qxb2 Qxe4 15. Rac1 e5 16. Nd4 {½-½ (36) Dubov,D (2702)-Radjabov,T (2765) chess24.com INT 2020}) 10... Nxe4 {The position is equal.} 11. Be3 Qb4 12. Qxe4 Nc6 13. a3 Qxb2 14. Qxc4 Bf6 15. Rab1 Qc3 ({Of course not} 15... Qxa3 16. Bc5 $16) 16. Nd2 Rd8 17. Qa2 Qa5 18. Nb3 Qc7 19. Rfc1 e5 20. Nc5 Rb8 21. Bd5 Bf5 {[#]} 22. Rxb7 Rxb7 23. Nxb7 Qxb7 24. Bxc6 Qe7 25. Bc5 Qc7 26. Bd5 e4 27. Be3 $36 {[%mdl 2048] White has some pressure.} Qd7 28. Rc5 Bg6 (28... Bh3 $11 {remains equal.}) 29. Qc4 $16 h5 30. Bxe4 Qd1+ 31. Kg2 {Bxg6 is the strong threat.} Bxe4+ 32. Qxe4 Qxe2 33. Qc4 (33. Qf3 $16 Qd3 34. Rxh5) 33... Qxc4 $11 34. Rxc4 {[%mdl 4096] Endgame KRB-KRB} Rd3 {Black is now going downhill.} ({Black should play} 34... Ra8 $14) 35. a4 $16 a5 {[#]} 36. Rc8+ $1 Kh7 37. Rc5 Bc3 (37... Bd8 $16) 38. Rxh5+ $18 Kg6 39. Rb5 {And now Rb3 would win.} Bb4 $2 (39... Rd8 {might work better.} 40. Rg5+ Kh7) 40. Bb6 Ra3 41. Bxa5 Be7 42. Bb4 Bxb4 43. Rxb4 {KR-KR} f5 44. Rf4 Kf6 45. h4 Ra1 46. Kf3 g6 (46... Ke5 $142 47. Rb4 Rf1) 47. Ke3 Rd1 $2 (47... Ke5 48. Rb4 Ra3+ 49. Ke2 Kf6 50. Rb6+ Kg7) 48. Rd4 Ra1 49. Kf4 Ra2 50. f3 Ra3 51. Rd6+ Kf7 (51... Kg7 $142 52. Ra6 Kf7) 52. Ra6 Kg7 53. a5 Kh6 54. Ra8 Kh7 (54... Rd3 $142 55. a6 Ra3) 55. a6 (55. Kg5 $142 {Hoping for Ra7+.} Rxf3 56. Ra7+ Kg8 57. a6 Rxg3+ 58. Kh6) 55... Kg7 (55... Kh6 $142 56. a7 Kg7) 56. Kg5 Rxf3 57. Ra7+ {White mates.} Kg8 58. Rb7 Rxg3+ 59. Kh6 Ra3 60. a7 f4 61. Rb8+ {Weighted Error Value: White=0.17/Black=0.35} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.15"]
[Round "5.8"]
[White "Oberoi, Shelev"]
[Black "Resika, Nathan"]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "2161"]
[BlackElo "2155"]
[Annotator "TA"]
[PlyCount "157"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,157,54,54,-11,39,-13,13,-10,10,17,16,0,0,-15,-21,-24,-21,-21,-19,-14,-14,-41,0,0,0,0,13,-33,-27,-31,-33,-58,-52,-46,0,-52,-65,-94,-115,-74,0,-54,-45,-54,-4,-10,16,16,10,16,17,9,9,11,45,37,54,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-12,6,4,5,0,0,0,5,0,0,-8,0,0,0,0,0,0,0,0,4,0,0,0,0,-6,-7,-8,0,0,0,0,0,0,0,0,0,0,7,0,0,0,0,0,0,0,8,0,5,0,0,0,5,5,22,14,21,18,39,39,149,151,220,220,220,141,213,213,228,236,227,228,236,236,29978,29979,29979,29980,29983,29984]} 1. e4 c5 2. c3 d5 3. exd5 Nf6 4. Qa4+ Nbd7 5. c4 b5 6. Qc2 {[#] B22: Sicilian: 2 c3.} (6. Qxb5 $14 Rb8 7. Qa4) 6... Nb6 $146 ({Predecessor:} 6... bxc4 7. Bxc4 Nb6 8. d3 Nfxd5 9. a3 e6 10. Nf3 Bd6 11. Nc3 O-O 12. b3 Nf4 {1-0 (27) Stevanic,D (2011)-Brcar,A (2107) Ljubljana 2015}) 7. b3 (7. d3 $14) 7... bxc4 8. bxc4 {The position is equal.} e6 9. dxe6 Bxe6 10. a4 Bd6 11. Nf3 Qe7 {aiming for ...Bf5+.} 12. d3 Bxc4+ 13. Be2 Be6 14. O-O O-O 15. Nc3 h6 16. Ne4 Nxe4 17. dxe4 Rac8 18. e5 Bb8 19. Re1 Nd5 20. Bb2 Nb4 21. Qc3 Nd5 22. Qd2 ({White should try} 22. Qc2 $1 $11) 22... Rfd8 $15 23. Red1 Nb4 24. Qc3 Nd5 (24... Rxd1+ $17 25. Rxd1 c4) 25. Qa3 (25. Qd2 $11) 25... Nf4 26. Bf1 Bg4 27. Qe3 Nd5 (27... Rxd1 {is more complex.} 28. Rxd1 Ng6 29. Bc4 Bxf3 30. Qxf3 Bxe5 31. Re1 Qf6) 28. Qe4 Be6 29. Bd3 {Intending Qh7+ and mate.} g6 30. Ba6 Rc6 31. Bc4 Bf5 32. Qe1 Be6 33. Bc1 (33. Qd2 $14 g5 34. Ra3) 33... Nb4 $11 {Hoping for ...Rxd1.} 34. Bxh6 {Bg5 is the strong threat.} Bxc4 35. Bg5 $1 {[%cal Rg5e7]} Rxd1 36. Rxd1 f6 $1 {[%cal Rf6g5]} 37. Bxf6 Rxf6 38. exf6 Qxe1+ ({Avoid the trap} 38... Qxf6 $2 39. Qe8+ Kg7 40. Qxb8 $18) 39. Rxe1 Kf7 40. Rc1 Be2 (40... Bd5 {with more complications.} 41. Rxc5 Bd6 42. Rc8 Kxf6 43. Rc3 Nc6) 41. Rxc5 {With the idea Ne5+.} Kxf6 42. Nd2 Bd3 43. h4 Bd6 44. Ra5 (44. Rc8 {seems wilder.} Be5 45. g3 Ke6 46. g4 Nd5 47. h5) 44... a6 45. Nf3 Be4 (45... Bf5 {is interesting.} 46. g3 Be7 47. Ng5 Bc2 48. Nh7+ Kg7) 46. h5 gxh5 (46... Bd5 {with more complications.} 47. hxg6 Kxg6 48. Ne1 Bc7 49. Rc5 Bb6) 47. Rxh5 Bxf3 48. gxf3 Kg6 49. Rh8 Kf5 50. Rd8 Ke6 51. Kf1 a5 52. Ke2 Nd5 53. Kd3 Bb4 54. Rc8 Ke5 55. Re8+ Kd6 56. Kc4 {And now Rd8+ would win.} Nc3 57. Kb3 Nd5 58. Re4 Bc5 59. Re2 Bb4 60. Rc2 Ke5 61. Rc4 Kd6 62. f4 Be1 63. f3 Bg3 64. Rd4 {Threatens to win with Kc4.} Kc5 65. Rc4+ Kd6 66. f5 Be5 67. Rh4 Bf6 68. Re4 Be5 69. Kc4 Ne7 ({Black should play} 69... Nc7 $14) 70. f4 $16 Bb2 (70... Bg7 $16) 71. Re6+ $18 Kd7 72. Ra6 {Black must now prevent Ra7+.} Nc6 {[#]} (72... Nxf5 $16 {was called for.} 73. Rxa5 Nd6+ 74. Kd5 Ne8) 73. Rb6 $1 {[%cal Rb6b2]} Ba1 74. Kd5 Ne7+ 75. Ke4 Nc6 76. Rb1 Bc3 $2 {[#]} (76... Bf6 $18 77. Rb5 Bh4 78. Rd5+ Kc7) 77. Rd1+ $1 {White mates.} Kc7 78. Rc1 Bb4 79. Kd5 {Weighted Error Value: White=0.12/Black=0.08} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.16"]
[Round "6.1"]
[White "Mardov, Dimitar"]
[Black "Mishra, Abhimanyu"]
[Result "1-0"]
[ECO "D13"]
[WhiteElo "2265"]
[BlackElo "2354"]
[Annotator "TA"]
[PlyCount "191"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,191,0,0,-16,-10,0,0,-2,-2,-18,-2,-2,0,-2,-2,-36,-2,-2,0,-3,0,-8,3,0,35,32,61,85,89,70,93,60,53,52,43,0,0,0,0,0,0,0,0,0,166,166,162,160,158,162,501,485,1082,958,1459,1530,1077,1091,533,148,234,234,172,148,148,148,348,333,325,148,148,148,1423,940,12823,12827,12825,12827,12822,12825,12827,12823,12823,12800,12829,12829,12826,0,10218,7660,420,327,287,141,189,161,12839,12839,12840,121,124,0,12840,181,182,180,189,175,466,12831,12840,12839,12845,12845,12845,12846,12847,12847,12850,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999,27999]} 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Bf4 a6 7. a3 Bf5 8. Rc1 e6 9. e3 Rc8 10. Bd3 Bxd3 11. Qxd3 Be7 12. O-O O-O 13. b4 {D13: Slav Defence: Exchange variation without ...Bf5.} b5 14. Nd2 Nd7 15. Nb3 {The position is equal.} Nb6 16. Nc5 Bxc5 {[#]} 17. bxc5 $146 ({Predecessor:} 17. dxc5 Nc4 18. Ne2 Qf6 19. Qc3 Qxc3 20. Rxc3 a5 21. Rb1 axb4 22. axb4 e5 23. Bg3 Ra8 24. f4 exf4 25. Nxf4 {½-½ (25) Foierl,S (1583)-Poeschl,R (1582) Germany 2010}) 17... Nc4 18. Ra1 Qd7 19. Rfb1 Ra8 20. h3 f6 21. Bg3 Rfd8 22. Qe2 e5 23. dxe5 fxe5 (23... d4 $5 {[%cal Rd4c3]} 24. Rd1 Qe6 25. exd4 Nxd4 $11) 24. Bh4 Rf8 25. Rd1 d4 {[#]} 26. a4 $1 Qb7 $1 27. axb5 axb5 28. Rxa8 Rxa8 29. Nd5 Qf7 30. e4 h6 31. Rb1 Rb8 32. Rb3 Kh7 $1 33. Kh2 N4a5 $2 (33... Qg6 $11) 34. Rxb5 $18 Rxb5 35. Qxb5 Qb7 36. Qe2 Nb3 $2 (36... Qb8 {is tougher.} 37. Bg3 Qf8) 37. Qf3 {And now Be7! would win.} Kg8 {[#]} (37... Nxc5 $142 38. Qf5+ Kg8) 38. Be7 $1 {[%mdl 576] Threatening mate with Qf8+. Deflection} Nxe7 (38... Qc8 39. Qxb3) 39. Nxe7+ Qxe7 40. Qxb3+ {[%mdl 4096] Endgame KQ-KQ} Kh7 41. Qd5 $2 (41. c6 $1 $18) 41... Qf6 (41... Qf8 $16) 42. Kg1 $1 {c6 is the strong threat.} Qf4 {intending ...Qc1+.} 43. g3 Qc1+ 44. Kg2 d3 $2 (44... Qc2 $16 {might work better.} 45. Qxe5 d3) 45. Qxd3 Qxc5 46. h4 (46. Qd7 $1 $18) 46... Qe7 47. Qf3 g6 $2 {[%mdl 8192] [#]} (47... Qe8 $16 48. h5 Qe7 49. Qf5+ Kh8 50. Qc8+ Kh7) 48. h5 $1 {[%cal Rh5g6]} gxh5 49. Qxh5 Kg7 50. Qf5 Qd6 51. Kh3 Qe7 52. f4 exf4 53. gxf4 Qd8 54. Qe5+ Kh7 55. Qf5+ Kg7 56. Qg4+ Kh7 57. Qf3 Qd7+ 58. f5 (58. Kg2 $18 {and White stays clearly on top.}) 58... Qd6 59. Qg3 Qa6 (59... Qc6) 60. Kh4 Qc6 61. Qg4 $2 (61. Qe5 $18 Qd7 62. Qf4) 61... Qd6 $16 62. Qg3 $2 {[%mdl 8192]} (62. Qg2 $16) 62... Qc6 $18 {White now steadily converts the win.} 63. Qe3 $2 (63. Qe5 Qd7 64. Qf4) 63... Qf6+ 64. Kg4 Qg7+ 65. Kf3 {Strongly threatening e5.} h5 $2 {[#]} (65... Qf7 66. Qd2 Qf6) 66. Qf4 $1 Qc3+ 67. Kg2 Qc2+ 68. Kg3 Qd1 69. Kh4 Qh1+ 70. Kg5 Qg2+ 71. Kxh5 Qe2+ {White mates.} 72. Kg5 Qg2+ 73. Kf6 Qg7+ 74. Ke6 Qg8+ 75. Kd7 Qg7+ 76. Kd6 Qd4+ 77. Ke6 Qb6+ 78. Qd6 Qb3+ 79. Kf6 Qc3+ 80. e5 Kh6 81. Kf7+ Kg5 82. Qf6+ Kf4 83. e6 Qb3 84. Kg7 Qg3+ 85. Kf8 Qa3+ 86. e7 Qc5 87. Qe6 Qa3 88. Kf7 Qa7 89. f6 Qb7 90. Qd6+ Kf5 91. Qc5+ Kf4 92. Kf8 Qh1 93. e8=Q Qh8+ 94. Ke7 Qh7+ 95. Kd8 Qd3+ 96. Qd7 {Weighted Error Value: White=0.44/Black=0.34} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.16"]
[Round "6.2"]
[White "Sinha, Sahil"]
[Black "Yanayt, Eugene"]
[Result "1-0"]
[ECO "E99"]
[WhiteElo "2324"]
[BlackElo "2100"]
[Annotator "TA"]
[PlyCount "113"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,113,79,65,68,45,56,40,40,71,72,71,64,75,83,77,79,67,70,76,75,58,72,56,66,20,66,26,35,29,44,19,41,8,60,61,77,78,76,38,37,29,62,29,167,113,272,262,272,253,277,271,270,278,267,189,207,145,153,153,174,145,239,74,385,391,479,454,543,512,714,608,653,643,1599,1569,1207,1255,29983,29984,29984,29985,29985,29986,29986,29987,29987,29988,29991,29990,29993,29994]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Be3 f5 11. f3 f4 12. Bf2 g5 13. Rc1 Ng6 {E99: King's Indian: Classical Main Line: 9 Ne1 Nd7 10 f3 f5.} 14. Nb5 b6 15. b4 a6 {White is slightly better.} 16. Nc3 {[%cal Bb5c3,Bc3a4,Ba4c5][%mdl 32]} Rf7 17. c5 bxc5 18. bxc5 Nxc5 19. Bxc5 dxc5 20. Na4 Bf8 21. Nxc5 Bd6 22. Ned3 {[#]} Nf8 $146 ({Predecessor:} 22... Qf6 23. Qa4 Kg7 24. Qc6 Ra7 25. Rb1 h5 26. Rb8 Ne7 27. Qe8 Rf8 28. Qxh5 Ng6 29. Rxc8 Rxc8 {½-½ (37) Arutinian,D (2551)-Nigalidze,G (2474) Tbilisi 2020}) 23. Qb3 Qe7 24. Qc3 h5 25. Nf2 Rg7 26. h3 Kh8 27. Rc2 Nh7 28. Nb3 Qf8 (28... Nf6 $11) 29. Nd2 $14 {aiming for Nc4.} Nf6 30. Nc4 Qe7 31. Nxd6 cxd6 32. Qa3 Bd7 33. Rc7 Rag8 (33... Qf8 $11) 34. Ra7 (34. Bxa6 $6 Qd8 $14) (34. Qxa6 Qd8 $16) ({Better is} 34. Rb1 $18) 34... Qf8 $2 {[#]} (34... Rb8 $16 35. Rc1 (35. Rxa6 Ne8 $16) (35. Qxa6 Qf8 $16) (35. Bxa6 Ne8 $16) 35... Ne8 36. Rxa6 (36. Bxa6 Qd8 $16) 36... Kh7) 35. Rxa6 $18 Bc8 36. Rc6 (36. Qxd6 Bxa6 37. Qxa6 Rg6 $16) (36. Rxd6 Rd7 $14) 36... Bb7 37. Rb6 (37. Qxd6 Bxc6 38. Qxc6 Ra7 $16) (37. Rxd6 Rd7 $14) 37... Rd7 38. Rc1 Qe7 39. Qb4 Bxd5 40. a4 {[%cal Ba2a4,Ba4a5,Ba5a6][%mdl 32]} g4 41. fxg4 ({Worse is} 41. exd5 Nxd5 42. Qb5 Nxb6 $11) 41... hxg4 42. hxg4 (42. exd5 Nxd5 43. Qb5 Nxb6 $14) 42... Be6 {[%cal Rf6g4]} 43. Rcc6 $2 (43. Rc3 $18 {and White stays clearly on top.}) 43... Ne8 $2 {[%mdl 8192]} (43... Bxg4 $16 44. Nxg4 (44. Rxd6 Bxe2 45. Rxf6 Qxb4 $11) 44... Nxg4 45. Bxg4 (45. Rxd6 Rxd6 46. Rxd6 Rg6 $16) 45... Rxg4 46. Rxd6 Rxd6 47. Qxd6 Qxd6 48. Rxd6 f3) 44. a5 f3 45. Bxf3 Qh4 46. a6 Rf7 47. Qd2 Rgf8 48. Rb7 Rxf3 49. gxf3 Rxf3 50. Rc3 Bxg4 51. Rxf3 {White mates.} Bxf3 52. Kf1 Bxe4 53. Nxe4 Qh1+ 54. Kf2 Qh2+ 55. Kf3 Qh5+ 56. Kg3 d5 {[#]} 57. Qh2 $1 {Weighted Error Value: White=0.21/Black=0.48} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.15"]
[Round "6.3"]
[White "Wu, Rochelle"]
[Black "Liang, Jason"]
[Result "0-1"]
[ECO "D13"]
[WhiteElo "2095"]
[BlackElo "2342"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,58,7,7,15,29,41,43,38,36,13,11,11,8,-16,0,-45,0,-13,0,-170,-166,-293,-292,-407,-420,-406,-417,-412,-414,-453,-458,-462,-447,-1115,-1091,-1206,-1185,-1058,-995,-914,-914,-907,-907,-907,-790]} 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Bf4 Nc6 5. e3 Nf6 6. Nc3 a6 7. Rc1 Bf5 8. Nf3 Rc8 9. Be2 {D13: Slav Defence: Exchange variation without ...Bf5.} Nh5 10. Be5 {Strongly threatening Nh4.} e6 11. O-O {White is slightly better.} Be7 {[#]} 12. Qb3 $146 ({Predecessor:} 12. Na4 O-O 13. h3 Nf6 14. Qb3 Nxe5 15. dxe5 Nd7 16. Nd4 Rxc1 17. Rxc1 b5 18. Nxf5 exf5 {½-½ (46) Fuss,H (1618)-Hansen,M (1824) GER email 2014}) 12... Na5 {[%cal Ra5b3]} 13. Qa4+ Nc6 14. a3 O-O 15. b4 Nf6 (15... f6 $5 {[%cal Rf6e5]} 16. Bg3 g5 $11) 16. Qb3 Ne4 17. Bf4 $2 (17. Qb2 $11 {and White has nothing to worry.}) 17... g5 $19 18. Nxe4 (18. Bg3 $142) 18... dxe4 19. Ne5 gxf4 20. Nxc6 Rxc6 ({But not} 20... bxc6 21. Bxa6 Rc7 22. exf4 $19) 21. Rxc6 bxc6 22. Bxa6 Bd6 {Black is clearly winning.} 23. Rc1 Qg5 24. Rxc6 {[#]} (24. Bf1 $142 Rc8 25. Rc4) 24... Bh3 $1 {[%csl Gh3][%cal Rg5g2]} 25. Bf1 {[#]} (25. Kf1 Qxg2+) 25... f3 $1 {[%cal Rf3g2]} 26. g3 Bxf1 27. Kxf1 Qb5+ 28. Qc4 Qxc4+ 29. Rxc4 Ra8 {Weighted Error Value: White=0.66/Black=0.03} 0-1

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.16"]
[Round "6.4"]
[White "Colas, Joshua"]
[Black "Oberoi, Shelev"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2280"]
[BlackElo "2161"]
[Annotator "TA"]
[PlyCount "143"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,143,0,0,3,3,-2,-12,-32,-31,-37,-32,-31,-31,-35,-14,-35,-12,-13,0,0,25,14,48,37,43,28,34,8,22,33,41,35,47,2,6,0,55,25,25,20,22,58,34,43,70,52,36,29,28,37,58,0,0,0,0,0,0,0,0,0,0,0,0,-40,-30,-25,-15,-15,-7,-8,-7,-272,-20,-27,0,0,0,0,33,35,148,150,155,149,181,145,141,75,154,147,154,149,224,217,175,95,126,125,106,98,100,106,207,201,210,193,454,445,435,347,600,593,12834,10385,12838,12839,12835,12833,12842,12843,12845,12843,12845,12844,12848,12848,12849,12849,12850,12850,12850,27999]} 1. Nf3 d5 2. d4 Nf6 3. g3 c6 4. Bg2 Bf5 5. O-O h6 6. b3 Nbd7 7. Bb2 e6 8. c4 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Be7 9. Nfd2 b5 {[#]} 10. Nc3 $146 {[%cal Bb1c3,Bc3d1,Bd1b2][%mdl 32] The position is equal.} ({Predecessor:} 10. Na3 bxc4 11. bxc4 Rb8 12. Nb3 a5 13. Qc1 a4 14. Nd2 Bb4 15. Rd1 Qa5 16. Ndb1 {1-0 (73) Granda Zuniga,J (2631)-Stamenkovic,D (2383) Caioba 2018}) 10... bxc4 11. bxc4 Rb8 12. Qc1 Qb6 13. Nd1 O-O 14. c5 Qb5 15. Re1 Bd8 16. Bc3 Qa4 (16... Re8 {feels hotter.} 17. f4 Qa4 18. Nb2 Qa6 19. Nd1 Qa4) 17. Nb2 Qc2 (17... Qa3 {is more complex.} 18. Nd3 Qa6 19. Bf1 Bc7 20. Qd1 Rfe8) 18. Qxc2 Bxc2 19. Rec1 Bg6 20. Nb3 Rb5 21. e3 Ne4 22. Be1 e5 23. Na4 (23. Bh3 $5 {[%cal Rh3d7]} Rb7 24. Bxd7 Rxd7 25. dxe5 $11) 23... Rb8 24. h4 Be7 (24... Re8 $11) 25. f3 Nef6 26. Bf1 Bd8 27. dxe5 Nxe5 28. Nd4 Rc8 {[%cal Bb8c8,Bc8c7,Bc7d7,Bd7d8,Bd8e8][%mdl 32]} 29. Ba6 Rc7 30. Ba5 Rd7 31. Bxd8 Rdxd8 32. f4 (32. Rc3 $14) 32... Neg4 $1 $11 33. Nxc6 Rde8 34. Ne5 Nxe5 35. fxe5 Rxe5 36. c6 Rxe3 37. c7 Bf5 ({Of course not} 37... Rxg3+ $6 38. Kh2 $16) 38. c8=Q Bxc8 (38... Rxg3+ {looks sharper.} 39. Kh1 Bxc8 40. Rxc8 Rxc8 41. Bxc8 Ra3) 39. Rxc8 Rxg3+ 40. Kh2 Ra3 41. Rxf8+ $1 Kxf8 42. Bb5 {[%mdl 8192]} (42. Nc5 $11) 42... Ng4+ $2 (42... a6 $1 $19 {[%cal Ra6b5]} 43. Bc6 Ng4+ 44. Kg2 Ne5 45. Bxd5 Rxa4) 43. Kg2 a6 44. Bd7 Ne5 45. Nb6 Ke7 46. Ba4 d4 ({Black should play} 46... Nc4 $14 47. Nxd5+ Kd6) 47. Bb3 $16 {aiming for Re1.} Ra5 48. Re1 {Strongly threatening Nc4.} f6 49. Nc4 Rb5 50. Nxe5 (50. Re4 $142) 50... fxe5 {[%mdl 4096] Endgame KRB-KR} (50... Rxe5 $142 51. Rxe5+ fxe5) 51. Kf3 $1 Kd6 52. Ke4 Rb4 (52... Rc5 $16 {was worth a try.}) 53. h5 $18 a5 54. Rg1 (54. Rc1 $1 $18) 54... a4 $16 55. Bg8 Rb2 56. Rxg7 Re2+ 57. Kd3 Re3+ {[#]} (57... Re1 $16) 58. Kc4 $1 $18 Rc3+ {[#]} 59. Kb4 $1 Rc1 $2 (59... e4 {was called for.} 60. Rg6+ (60. Kxa4 $2 d3 $19) 60... Ke5) 60. Rg6+ Kd7 {Now ...d3 and Black clings on.} 61. Be6+ Ke7 $2 (61... Kc7 62. Bf5 (62. Kxa4 d3 $16) 62... Rf1) 62. Bc4 {White is clearly winning.} Re1 63. Kc5 Rh1 64. Rxh6 Kf8 65. Kd5 Rh2 66. Kxe5 Kg7 67. Rg6+ Kh7 68. Kxd4 Rxh5 69. Ra6 Rh4+ 70. Kc3 Rh3+ 71. Bd3+ Kg7 72. Rxa4 {Weighted Error Value: White=0.16/Black=0.34} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.16"]
[Round "6.5"]
[White "Wang, Tianqi"]
[Black "Chiu, Isaac"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2307"]
[BlackElo "2209"]
[Annotator "TA"]
[PlyCount "111"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,110,37,29,31,35,43,53,14,16,12,49,16,10,17,8,0,0,-4,0,16,23,21,22,-20,0,-44,-53,-55,-52,-80,-72,-115,-104,-133,-72,-61,0,-103,0,0,25,-49,63,49,140,99,104,98,210,107,233,124,178,183,169,120,287,119,196,170,177,133,167,6,22,35,151,0,0,0,4,0,87,86,109,79,311,265,597,608,606,579,1528,1518,1356,1161,29984,29985,29985,29986,29984,29980,29978,29979,29982,29983,29993,29994,29995,29996,29996,29997,29999]} 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 a6 5. g4 b5 6. Bg2 {B06: Modern Defence.} Bb7 7. h4 h6 8. Nce2 {[#] White is slightly better.} Nd7 $146 ({Predecessor:} 8... Nf6 9. Ng3 Qc8 10. f3 Nbd7 11. N1e2 c5 12. c3 e6 13. Qd2 Nb6 14. b3 Nfd7 {1-0 (33) Oliveira,S (2304)-Chernomordik,P (2177) Chess.com INT 2020}) 9. Ng3 e6 10. Qe2 c5 11. O-O-O Qc7 12. Nh3 Ne7 13. f4 O-O-O 14. Kb1 Nb6 15. c3 Kb8 16. Rhf1 f5 17. h5 (17. Nf2 {seems wilder.} Nc4 18. dxc5 d5 19. exf5 exf5 20. Nd3) 17... cxd4 18. Bxd4 Bxd4 19. Rxd4 fxg4 {White must now prevent ...e5.} 20. Qxg4 {[%mdl 64] Double Attack} gxh5 21. Nxh5 (21. Qxe6 $2 Rhg8 $19) 21... Rhg8 ({Black should try} 21... e5 22. Rdd1 Rhg8) 22. Qe2 $17 Nc6 (22... Nc4 $15 23. Rc1 d5) 23. Rdd1 (23. Rd3 $1 $11) 23... Qf7 (23... Na4 $17 {Hoping for ...Na5.} 24. f5 Ne5) 24. Bf3 $11 Nc4 25. b3 (25. Nf2 $11) 25... Nb6 (25... Na3+ $1 $15 26. Kb2 b4) 26. Qe3 $14 Kc7 ({Black should play} 26... Qc7 $14) 27. Kb2 d5 28. e5 Ne7 (28... Nd7 $16) 29. Qc5+ (29. Nf6 $1 $18) 29... Bc6 (29... Nc6 $16 {might work better.}) 30. Nf2 (30. Nf6 $18) 30... Nf5 (30... Nd7 $16 31. Qa7+ Bb7) 31. Nd3 {aiming for Nb4.} Kb7 32. Qf2 Rc8 $2 (32... Nd7 $16) 33. Rg1 (33. Nf6 $18) 33... Nd7 (33... Rxg1 $16 34. Rxg1 d4) 34. Rxg8 $1 $18 Rxg8 35. Nb4 Qe7 36. Rg1 $2 (36. Nf6 $1 $18 Nxf6 37. Qa7+ $3 {[%mdl 576] Double Attack} (37. exf6 Qxf6 38. Nxc6 Kxc6 $14) 37... Kc8 38. Qxe7 (38. Nxc6 Qxa7 39. Nxa7+ Kb7 $16) (38. Qxa6+ Qb7 $16) 38... Nxe7 39. exf6) 36... Rxg1 $11 37. Qxg1 Nc5 ({Better is} 37... Qc5 $14 38. Qe1 a5) 38. Be2 $2 (38. Nf6 $16) 38... a5 39. Nd3 Ne4 40. Bf3 Qh4 {[#]} (40... Be8 $11 {remains equal.}) 41. Ng7 $1 $16 {Black is on the road to losing.} Nxg7 42. Qxg7+ Kb6 $2 (42... Kb8 $16) 43. Qg1+ $18 Kc7 $2 {[#]} (43... Kb7 {is a better chance.} 44. Bxe4 dxe4 45. Nc5+ {[%mdl 64] Double Attack} Kc8 46. Nxe6 (46. Qg8+ Qd8 $16) 46... b4 47. Qg8+ Kb7 48. Qg7+ Ka6) 44. Qa7+ $1 Kc8 45. Qa6+ Kd7 {intending ...Qh2+.} 46. Bxe4 {Threatening mate with Nc5+.} dxe4 47. Nc5+ Kc7 48. Qxa5+ {White mates.} Kc8 49. Qa6+ Kc7 50. Nxe6+ Kd7 51. Nd4 {[%mdl 64] Double Attack} Qf2+ 52. Ka3 e3 53. Qxc6+ {[%mdl 64] Double Attack} Ke7 54. Nf5+ {[%mdl 64] Double Attack} Kd8 55. e6 {[%csl Gf5][%cal Re6e7]} Qd2 56. e7# {Weighted Error Value: White=0.31/Black=0.56} 1-0

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.16"]
[Round "6.6"]
[White "Posthuma, Joshua"]
[Black "Park, Evan"]
[Result "1/2-1/2"]
[ECO "A86"]
[WhiteElo "2307"]
[BlackElo "2207"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,99,19,19,37,43,46,48,31,39,33,0,6,12,64,14,6,-64,-51,-52,-41,-45,-44,-44,-27,-80,-79,-75,-80,-81,-70,-79,-79,-82,-80,-103,-62,-67,-64,-56,0,0,0,0,0,0,110,119,136,-68,-66,-65,-62,-54,-54,-95,-23,-24,-24,-24,-20,-190,90,90,86,66,75,77,160,28,25,23,32,23,85,85,85,0,85,23,37,33,85,0,42,0]} 1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nc3 O-O 6. Nh3 d6 7. Nf4 Na6 8. d5 Nc5 9. O-O g5 {A86: Dutch Defence: Leningrad System: Unusual lines and 5 Nh3.} 10. Nd3 Nce4 11. Nxe4 fxe4 12. Nb4 h6 {[#]} 13. Be3 $146 ({Predecessor:} 13. Nc2 e6 14. dxe6 Bxe6 15. b3 Bf7 16. Bb2 Re8 17. Ne3 Qd7 18. Qd2 Rad8 19. Rad1 Qe6 20. Bxf6 Bxf6 21. Nd5 Rd7 22. Bh3 Qxh3 23. Nxf6+ Kg7 24. Nxe8+ {1-0 (24) Jiretorn,E (2096)-Rubene,I (2218) Skelleftea 2000}) 13... a5 14. Nc2 c5 (14... e5 $11) 15. a4 Qe8 16. Qd2 (16. Bd2 $11) 16... Ng4 17. f3 Ne5 18. b3 Qh5 {[%cal Re4f3]} 19. g4 Qg6 ({Of course not} 19... Bxg4 20. fxg4 Nxg4 21. h3 $11) 20. Rae1 (20. h3 $11) 20... Bd7 $17 21. h3 exf3 22. exf3 Nd3 23. Re2 Be5 24. Rd1 Nf4 25. Rf2 h5 26. Ne1 $1 Qh6 27. Nd3 hxg4 (27... Bg7 $15) 28. Nxe5 $11 g3 $1 {[%cal Rg3f2]} 29. Nxd7 gxf2+ 30. Qxf2 Rf7 (30... Rfd8 $11) 31. Kh2 $16 Rd8 32. Nxc5 (32. Nb6 $16) 32... dxc5 $15 33. Bxc5 Rdf8 34. d6 exd6 35. Rxd6 Qh5 ({Better is} 35... Qh7 $1 $17) 36. Qg3 Nxg2 37. Rd5 {[#]} Rf5 {Threatens to win with ...Nf4.} 38. Bxf8 $2 (38. Kxg2 $11 Rxd5 39. cxd5) (38. Rxf5 Rxf5) 38... Rxd5 $2 ({Black should play} 38... Ne3 $19 39. Rxf5 Nf1+ {[%mdl 64] Double Attack} 40. Kg2 Nxg3 41. Kxg3 Qh4+ 42. Kg2 Qh7 43. Rxg5+ Kxf8) 39. cxd5 $16 Nh4 40. Be7 {Hoping for Qg4.} (40. Bc5 {seems wilder.} Nxf3+ 41. Kg2 Nh4+ 42. Kf2 Qf7+ 43. Ke2) 40... Nxf3+ 41. Kh1 Qf7 {[#]} 42. Bxg5 ({Only move:} 42. Qd6 $1 $16) 42... Qxd5 $11 43. Be3+ Kf7 $1 44. Qc7+ Kg6 (44... Ke6 $11 {keeps the balance.} 45. Qc8+ Kf7 46. Qc7+ Ke6 47. Qb6+ Kf7) 45. Qb6+ Kf7 46. Qc7+ Kg6 {[#] ( -> ...Nh4+)} 47. Qc2+ (47. Qc4 $1 $16 {[%cal Rc4d5]} Qxc4 48. bxc4) 47... Kf6 $1 {And now ...Ne1+ would win.} 48. Qc3+ Kg6 (48... Ke6 $1 $14 49. Qc8+ Kf7) 49. Qc2+ Kf6 $1 {aiming for ...Ne1+.} 50. Qc3+ {Weighted Error Value: White=0.42/Black=0.22} 1/2-1/2

[Event "1st Charlotte Masters 2021"]
[Site "Charlotte"]
[Date "2021.02.16"]
[Round "6.7"]
[White "Resika, Nathan"]
[Black "Perrine, Dalton"]
[Result "0-1"]
[ECO "A09"]
[WhiteElo "2155"]
[BlackElo "2247"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2021.02.12"]
[EventType "swiss"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,64,-12,-7,-13,20,-34,-40,-214,-216,-205,-218,-208,-219,-212,-209,-236,-236,-255,-169,-204,-170,-167,-189,-478,-462,-409,-110,-92,0,0,1,0,0,0,0,0,-6,-106,-110,-110,-110,-159,-152,-152,-158,-145,-155,-666,-662,-625,-634,-29979,-29980,-29980,-29981,-29977,-29978]} 1. Nf3 d5 2. c4 d4 3. b4 g5 {[#]} 4. g3 $146 ({Predecessor:} 4. Qb3 Bg7 5. Nxg5 e5 6. d3 Bh6 7. f4 exf4 8. h4 Nc6 9. b5 Nce7 10. c5 Be6 11. Nxe6 fxe6 12. Qxe6 {0-1 (39) Howell,D (2663)-Navara,D (2719) chess24.com INT 2020}) 4... g4 5. Nh4 e5 6. Bg2 {A09: Réti Opening: 1 Nf3 d5 2 c4.} Be7 7. Bb2 ({White should try} 7. d3 $11) 7... Nh6 $15 8. h3 $2 (8. O-O $15) 8... Bxh4 $19 9. gxh4 gxh3 ({Worse is} 9... Qxh4 10. hxg4 Qxg4 11. Bf3 $11) 10. Bxh3 Bxh3 11. Rxh3 {[#]} Rg8 $1 {[%cal Rg8g1]} 12. Qa4+ Nc6 {[%cal Rg8g1]} 13. d3 Rg1+ 14. Kd2 Qf6 15. Rf3 Qxh4 16. Na3 $2 (16. b5 Nd8 17. b6+ Nc6 18. bxc7) 16... Rxa1 17. Bxa1 Qe7 $2 (17... e4 $19 {and Black stays clearly on top.} 18. dxe4 O-O-O) 18. b5 $17 Qb4+ (18... Nb8 $17 19. b6+ c6 20. bxa7 Nd7) 19. Qxb4 $11 Nxb4 20. Rh3 Ng4 21. Rxh7 {[#] Black must now prevent Rh8+.} Ke7 22. f4 a6 {[%cal Ba7a6,Ba6b5,Bb5c4][%mdl 32] aiming for ...axb5.} 23. fxe5 (23. Bb2 $11 {keeps the balance.}) 23... axb5 $17 24. Bxd4 {Hoping for Bc5+.} Rxa3 25. Bc5+ Ke6 26. Bxb4 Rxa2+ {[%mdl 4096] Endgame KRB-KRN} 27. Kc3 bxc4 ({Don't do} 27... Nxe5 28. Rh6+ Kd7 29. cxb5 $15) 28. d4 $2 (28. Rg7 $17 Nxe5 29. d4) 28... Ne3 $19 {[%csl Ge3][%cal Ra2c2]} 29. Bf8 Kd5 {( -> ...Nd1+)} 30. Rxf7 Nd1+ {Black mates.} 31. Kb4 Rb2+ 32. Ka5 Nc3 {[%csl Gc3][%cal Rb2b5] Weighted Error Value: White=1.03/Black=0.36} 0-1

