[Event "FIDE Chesscom Grand Swiss 2021"] [Site "Riga"] [Date "2021.10.29"] [Round "3.44"] [White "Adhiban, B..."] [Black "Onyshchuk, Volodymyr"] [Result "0-1"] [ECO "E70"] [WhiteElo "2672"] [BlackElo "2622"] [Annotator "TA"] [PlyCount "102"] [EventDate "2021.10.27"] [EventType "swiss"] [EventCountry "LAT"] [Tiebreak "Cut1 Buchholz+Sonneborn-Berger (Swiss)"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 15,102,39,51,50,64,20,20,0,0,0,74,65,89,81,98,59,79,78,79,71,89,85,86, 93,96,55,72,60,110,95,176,182,159,167,212,106,105,138,113,168,160,105,99,24,22, 31,0,0,40,0,0,0,6,-7,0,-7,-11,-98,-20,-126,-108,-352,-343,-416,-368,-381,-389, -560,-531,-493,-478,-452,-424,-623,-614,-884,-887,-871,-756,-5087,-4813,-5329, -5322,-29988,-29989,-29989,-29987,-5497,-1968]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Bg5 d6 6. h3 c5 7. d5 a6 8. a4 e6 9. Bd3 {E71: King's Indian: 4 e4 d6 5 h3.} Re8 $5 {[%mdl 4] An interesting side line.} 10. Nge2 h6 11. Be3 { The position is equal.} exd5 $1 12. cxd5 {[#]} b6 $146 (12... Nbd7 $11 { remains equal.}) ({Predecessor:} 12... Nbd7 13. f4 c4 14. Bc2 Qa5 15. O-O Nc5 16. e5 dxe5 17. fxe5 Rxe5 18. Bd4 Nfd7 19. Bxe5 Nxe5 {0-1 (51) Grochal,J (2335) -Ivanisevic,I (2606) Chess.com INT 2021}) 13. Qd2 $16 Kh7 14. O-O $36 {White is really pushing.} Ra7 15. f4 Rae7 {[%CAl Rf6e4]} 16. Ng3 Nxe4 17. Ncxe4 { Strongly threatening f5.} (17. Ngxe4 f5 $15) 17... f5 {[#]} 18. Bc2 Bxb2 {[#]} (18... Kg8 19. Rae1) 19. Rae1 Bg7 (19... Kg8 20. Bf2) 20. Nf2 b5 21. Nd1 $1 h5 22. Bf2 $1 h4 (22... Rxe1 $16 {is a better defense.} 23. Rxe1 Rxe1+ 24. Qxe1 ( 24. Bxe1 Nd7 $16) 24... Bd7) 23. Rxe7 $1 $18 Qxe7 {[#]} 24. Re1 $1 Qd7 (24... Qf8 25. Nf1) 25. Nxf5 Rxe1+ $16 26. Qxe1 gxf5 27. Ne3 Qf7 28. axb5 ({Don't play } 28. Bxh4 $6 Bd4 $14) (28. Qa5 $142 $1 {[%CAl Ra5b6]} bxa4 29. Qd8 (29. Bxa4 Qe7 $16) (29. Qxa4 Bd4 $16)) 28... axb5 29. Qb1 ({Much worse is} 29. Bxh4 $6 Na6 $11) ({White should play} 29. Qa5 $16 {Black must now prevent Qd8.} Na6 30. Qd8 {[%mdl 64] Double Attack} (30. Qxb5 Nb4 $11)) 29... b4 $11 30. Nxf5 Bxf5 31. Bxf5+ Kh8 32. Qe4 {Bg6 is the strong threat.} Bf6 $1 33. Qe2 {And now Be6 would win.} Nd7 34. Bc2 Nf8 35. Qd3 Kg7 36. Kh2 {[#]} (36. Qe4 $11) 36... Ng6 ( 36... Bg5 $1 $17 37. f5 (37. Bd4+ cxd4) 37... Nd7) 37. Be3 {[#]} (37. Qe2 $11) 37... Ne7 $1 $17 38. Qh7+ $2 (38. Bf2 $17) 38... Kf8 $19 39. Qd3 Qxd5 40. Qb5 Kg7 41. Bd3 (41. Kh1 $142) 41... Qe6 42. Bf2 Qa2 43. Be3 Qa3 44. Bf2 (44. g4 $142 hxg3+ 45. Kxg3) 44... Qb2 45. Be3 Qc3 46. Bf2 b3 {[%CAl Bb4b3,Bb3b2][%mdl 32]} 47. Bc4 Qd2 48. Bg1 b2 49. Be6 Qxf4+ 50. Kh1 Qe4 51. Ba2 c4 {Never resign too early! Weighted Error Value: White=0.84/Black=0.13} (51... Qe1 $142 52. Qb3 Bd4 53. Qf7+ Kh6 54. Qf4+ Kg6 55. Qg4+ Kf6 56. Qe6+ Qxe6 57. Bxd4+ cxd4 58. Bxe6 b1=Q+ {[%mdl 64] Zwischenzug} 59. Kh2 Kxe6 60. g4 Qf1 61. g5 Qf2+ 62. Kh1 Nf5 63. g6 Ng3#) 0-1 [Event "FIDE Chesscom Grand Swiss 2021"] [Site "Riga"] [Date "2021.10.29"] [Round "3.34"] [White "Ganguly, Surya Shekhar"] [Black "Swiercz, Dariusz"] [Result "0-1"] [ECO "B90"] [WhiteElo "2617"] [BlackElo "2647"] [Annotator "TA"] [PlyCount "70"] [EventDate "2021.10.27"] [EventType "swiss"] [EventCountry "LAT"] [Tiebreak "Cut1 Buchholz+Sonneborn-Berger (Swiss)"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 17,70,16,35,37,10,25,23,16,11,9,5,4,26,-7,0,0,-5,-8,0,0,0,-10,0,-30,-48, -47,-45,-28,-12,-30,-41,-75,-92,-64,-8,-248,-258,-243,-255,-241,-237,-497,-490, -484,-478,-555,-547,-5583,-5425,-5106,-846,-686,-686,-983,-588]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 h5 9. Qd2 Nbd7 10. Nd5 {10.Nd5 scores better than 10.0-0-0. B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} Bxd5 11. exd5 g6 12. O-O-O { White has an edge.} Bg7 13. Kb1 b5 {[#]} 14. Rg1 $146 ({Predecessor:} 14. c4 bxc4 15. Bxc4 a5 16. a4 O-O 17. Bb5 Nb6 18. Bg5 Qc8 19. Bxf6 Qf5+ 20. Qc2 Qxf6 {1-0 (60) Idani,P (2589)-Bosiocic,M (2600) Batumi 2018}) 14... Nb6 15. g4 (15. Na5 {with more complications.} O-O 16. Nc6 Qc7 17. Bxb6 Qxb6 18. Bd3) 15... Nfxd5 16. Bxb6 Nxb6 17. Qxd6 Qxd6 18. Rxd6 Nc4 19. Bxc4 bxc4 20. Na5 (20. Nc5 { seems wilder.} hxg4 21. fxg4 Rxh2 22. a4 c3 23. b3) 20... hxg4 21. fxg4 c3 $1 ( {Reject} 21... Rxh2 $6 22. Nxc4 Rf2 23. g5 $11) 22. Nc6 Rxh2 {Hoping for ... Rd2.} 23. bxc3 Kf8 {White must now prevent ...e4.} 24. Rf1 e4 25. Rd7 Kg8 ( 25... f6 $15) 26. Rfxf7 $2 {This costs White the game.} ({Much worse is} 26. Rdxf7 e3 $17) (26. Kb2 $11) 26... Bxc3 $19 27. Rf1 Kh8 {And now ...e3 would win.} 28. Re7 Rc8 {Strongly threatening ...e3.} 29. g5 $2 (29. a4) 29... e3 $1 {[%CAl Re3e2] Black is clearly winning.} 30. Rxe3 Rxc6 31. Re8+ Kh7 {( -> ... Rb6+)} 32. Rf7+ Bg7 33. c3 Rb6+ (33... Rxc3 $142 34. Ree7 {[#]} Rg3 $1 35. Rxg7+ Kh8 36. Rh7+ Rxh7 37. Re8+ Kg7) 34. Kc1 Rbb2 35. Ree7 {[#]} Rbg2 $1 { Weighted Error Value: White=0.80/Black=0.40} 0-1 [Event "FIDE Chesscom Grand Swiss 2021"] [Site "Riga"] [Date "2021.10.29"] [Round "3.25"] [White "Navara, David"] [Black "Sethuraman, S.P..."] [Result "1-0"] [ECO "C78"] [WhiteElo "2691"] [BlackElo "2620"] [Annotator "TA"] [PlyCount "69"] [EventDate "2021.10.27"] [EventType "swiss"] [EventCountry "LAT"] [Tiebreak "Cut1 Buchholz+Sonneborn-Berger (Swiss)"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 17,69,27,47,0,17,0,15,21,21,0,0,0,0,-20,0,-10,-6,-14,-6,0,0,-2,0,-16, -25,-33,-17,-39,70,58,124,110,100,98,179,177,181,185,156,163,164,172,211,205, 204,212,209,209,301,268,538,528,570,554]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bc5 7. a4 Rb8 8. c3 d6 9. d4 Bb6 10. a5 {C78: Ruy Lopez: Archangelsk and Möller Defences.} Ba7 (10... Bxa5 $2 11. dxe5 (11. d5 Ne7 $18) 11... dxe5 12. Qxd8+ Kxd8 13. Bd5 $18 (13. Bxf7 Bb6 $16)) 11. h3 Bb7 12. Re1 { The position is equal.} O-O 13. Be3 exd4 (13... Nxe4 $6 14. d5 $16) 14. cxd4 { White wants to play d5.} Nb4 {14...Ne7 gains popularity.} (14... Nxe4 15. d5 $18) 15. d5 {[#]} c5 $146 ({Predecessor:} 15... Bxe3 16. Rxe3 c5 17. Nc3 Re8 18. Qd2 Nd7 19. Bc2 Nxc2 20. Qxc2 Bc8 21. Ne2 Qf6 {1/2-1/2 (69) Tabatabaei,M (2824)-Schitco,I (2654) Chess.com INT 2020}) 16. dxc6 Bxe3 17. cxb7 Bc5 18. Nc3 Rxb7 19. Qd2 Re7 20. Rad1 {[#] aiming for e5.} Nc6 21. Qg5 Nxa5 22. Bc2 { e5 is the strong threat.} Qb6 (22... Rd7 $15) 23. Qh4 $1 $14 {Black must now prevent Nd5.} Rc8 (23... Rc7 $14) 24. e5 $16 dxe5 25. Bf5 $36 {[%mdl 2048] White is in control.} Rce8 (25... Rc6 $16) 26. Nd5 $18 {[#] Intending Nxf6+ and mate.} Bxf2+ 27. Qxf2 Nxd5 28. Rxd5 Qxf2+ 29. Kxf2 Nc4 30. b3 Na5 31. Bd7 ( {Don't play} 31. Rdxe5 Rxe5 32. Rxe5 (32. Nxe5 Nxb3 33. Nc6 Rxe1 $16) 32... Rxe5) 31... Rd8 32. Nxe5 Nxb3 (32... Kf8 $142 33. Ra1 Nxb3 34. Rxa6 g6) 33. Red1 Rf8 $2 (33... Na5 34. Bxb5 {[%mdl 64] Discovered Attack} Rxd5 35. Rxd5 g6 36. Bxa6 Nb7) 34. Nc6 Re4 {Now ...Ra4 and Black clings on.} 35. Rb1 {Weighted Error Value: White=0.06/Black=0.32} 1-0