[Event "PRO League Group Stage"] [Site "chess.com INT"] [Date "2020.01.29"] [Round "4"] [White "Gledura, B."] [Black "Wei Yi"] [Result "0-1"] [ECO "D87"] [WhiteElo "2626"] [BlackElo "2732"] [Annotator "Yip"] [PlyCount "108"] [EventDate "2020.01.06"] [EventType "team"] [EventRounds "7"] [EventCountry "USA"] [SourceTitle "TWIC 1317"] [Source "Mark Crowther"] [SourceDate "2020.02.03"] [SourceVersion "1"] [SourceVersionDate "2020.02.03"] [SourceQuality "2"] [WhiteTeam "Hungary Hunters"] [BlackTeam "China Pandas"] {-The Safest Grunfeld Reloaded(Delchev-Chess Stars 2019)} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 O-O 10. h4 {Even Carlsen has taken up this line} (10. O-O {Is the main line} e6 { Is Delchev's latest recommendation}) (10. Rc1 {Is the only sideline that Delchev mentions}) 10... Qa5 (10... cxd4 11. cxd4 Qa5+ 12. Kf1 Bd7 13. h5 Rac8 14. hxg6 hxg6 15. Bb3 Qa6 16. Kg1 Na5 17. Nf4 Rfe8 18. e5 Bf5 19. Kh2 Nxb3 20. axb3 Qc6 21. Rxa7 Red8 {1/2-1/2 (59) Carlsen,M (2872)-Vachier Lagrave,M (2780) London ENG 2019}) 11. O-O cxd4 (11... Rd8 12. Qb3 e6 13. d5 exd5 14. Bxd5 Ne5 15. Rad1 c4 16. Qb1 Qc7 17. h5 Ng4 18. Bf4 Be5 19. Qc1 Be6 20. Bxe6 fxe6 21. hxg6 hxg6 22. Bxe5 Qxe5 23. Qf4 Qxf4 24. Nxf4 Kf7 25. f3 Ne3 26. Rxd8 Rxd8 27. Rb1 b6 28. Kf2 Nd1+ 29. Ke1 Nxc3 30. Rc1 g5 {1/2-1/2 (30) Carlsen,M (2872)-Nepomniachtchi,I (2767) Moscow RUS 2019}) (11... Bd7 12. Rb1 Qc7 13. h5 cxd4 14. cxd4 Rad8 15. h6 Bh8 16. Qc1 Rc8 17. Qd2 Na5 18. Bd3 b6 19. Rbc1 Qb7 20. Bg5 Rfe8 21. Rxc8 Qxc8 22. Rc1 Qb7 23. d5 Be5 24. Bf4 Qb8 25. Bxe5 Qxe5 26. f4 Qh5 27. Rc7 Bg4 28. Bb5 Rf8 29. Rxe7 Qxh6 30. d6 Qh4 31. Nd4 Rd8 32. e5 Qg3 33. Qf2 Qc3 34. f5 gxf5 35. Nxf5 Bxf5 36. Qxf5 Qd4+ 37. Qf2 Qd5 38. d7 Qd1+ 39. Bf1 {1-0 (39) Carlsen,M (2872)-Artemiev,V (2731) Moscow RUS 2019}) 12. cxd4 Qh5 {The h4-pawn is not looking so healthy now} 13. f3 { aiming for Bg5.} Qxh4 14. Qd2 {The strong pawn centre gives White enough compensation for the pawn} Rd8 15. Rad1 {Bg5 is the strong threat.} (15. Rfd1 $13 {Is the right rook to centralize}) 15... Qf6 {Increasing the pressure on d4 invites the strong advance} (15... h6) (15... Be5 16. f4 Bc7 17. d5 Bg4 18. Rb1) 16. e5 {[%CAl Re5f6][%mdl 1024] White has strong compensation.} Qf5 {The exposed queen only looks active but in reality White has a good chance to show a clear edge here} 17. Ng3 {This modest approach loses most of the advantage} (17. Qe1 {Is very strong and Black is close to lost} b5 (17... Qd7 18. Qh4) (17... h6 18. Qh4 Qh5 19. Qf2 Qf5 20. g4 Qd7 21. Qh4) 18. Bxb5 Nxe5 19. dxe5 Rxd1 20. Qxd1 Qxe5 21. Qd8+ Bf8 22. Bh6 {Looks bad for Black but there is a hidden defensive resources that wins for Black} Qc5+ 23. Rf2 Bb7 {Suddenly the Ra8 joins the defence} 24. Qd2 Bxh6 25. Qxh6 Qxb5) (17. g4 {Is also good} Qd7 18. Bh6 Bxh6 19. Qxh6) 17... Qd7 18. f4 (18. Ne4 {Is another option worth considering}) (18. Qe1 {Is a possible improvement} Qc7 (18... Qe8 19. Ne4) 19. Rc1 e6 20. Qf2 $14) 18... Qg4 {The queen is again quite exposed and White is better} ( 18... e6 {remains equal.}) 19. Qf2 (19. Ne4 {Centralizing the knight is promising} Be6 20. Be2 Qh4 21. Nc5 Bd5 22. Nxb7 Rdb8 23. Bf2 Qh6 24. Nc5 e6 (24... Rd8) 25. Rc1) 19... Qh4 {Clearing the way for ..Bg4 allows the thematic central advance that follows} (19... Nb4 20. d5) 20. d5 $1 {[%CAl Rd5c6]} Na5 (20... Nb4 21. Bc5 b5 {A desperate way to get the queenside developed} 22. Bxb5 Ba6 23. Bxa6 Nxa6 24. Be3) 21. Be2 Bg4 {} (21... b6 22. Rd4 f5 23. Bd2 Bb7 24. Rd1) 22. Bxa7 {Greed does not pay here. White had a couple of good alternatives to choose from} (22. Bxg4 Qxg4 23. Rd4 Qc8 24. f5 {White has a strong attack}) (22. Bc5 {Increasing the pressure is another good alternative} Bxe2 23. Qxe2 Qxg3 24. Rd3 {Chasing the queen around is a recurring theme} Qh4 25. Rh3 Qxh3 {The only way to stay in the game} 26. gxh3 Rxd5 27. Bxe7 Re8 28. Qf3 Rd7 29. Bh4) 22... Bxe2 23. Nxe2 Qxf2+ 24. Bxf2 {Mass exchanges have led to an equal ending} Nc4 25. Nc3 {} g5 {[%mdl 512] Spectacular undermining play} (25... f6 {This more modest way of undermining the central pawns gives a level game} 26. d6 exd6 27. e6 Re8 (27... Rac8) 28. Rfe1 f5 ({or} 28... Rac8)) 26. Bc5 (26. g3 $5 h5 (26... h6 27. Rd4 Rac8) 27. Bc5 Re8 28. Rfe1) (26. fxg5 Bxe5) 26... gxf4 27. Rxf4 Nxe5 28. Bxe7 Rdc8 29. Bb4 Nd7 (29... Ng6 30. Rf3 Ne5) 30. Rf3 Rc4 {[%mdl 2048] Black is pushing.} 31. a3 Rd8 ( 31... Be5) 32. d6 {Pushing the passer is a normal plan} (32. Rg3 Ne5 33. Ba5 Rd6 34. Bb4 Rg6 35. Re3 Rcg4 36. Re2 f5) 32... Ne5 33. Rg3 Nc6 34. Nd5 {Black must now prevent Bc3.} (34. Nb5) 34... Nxb4 35. axb4 (35. Ne3 {This intermediate move keeps the balance} Rf4 36. axb4 Kf8 (36... Kh8) ) 35... Kf8 36. Rgd3 {Loses the d-pawn for nothing} (36. Ne7 Rd4 {The d-pawn but White is active enough to have drawing chances} 37. Rc1 R4xd6 38. Nf5 Bd4+ (38... Rd1+ 39. Rxd1 Rxd1+ 40. Kf2 Bf6) 39. Nxd4 Rxd4 40. Rc7 R4d7 41. Rc5 Rd1+ 42. Kh2 R1d5) 36... Rxd6 37. Kf1 Rh4 (37... Be5 38. b5 Rc5) 38. Kf2 {} (38. g3 Rg4 39. Nf4 Rxd3 40. Nxd3) 38... Be5 39. b5 Rg6 ({Black should try} 39... Kg7 40. R1d2 Ra4) 40. b6 (40. Rh3) 40... Kg7 (40... Bd6 41. Rc3 Rh5) 41. Ne3 (41. Ne7 Rf4+ 42. Kg1) 41... Rf4+ 42. Kg1 Re4 43. Nf5+ Kf6 44. Ne3 (44. Nd6 Re2 45. g3) 44... Kg5 45. Nd5 ( 45. Nf1) 45... Rd6 46. Kf2 f5 47. Kf3 h5 48. R1d2 Rc6 49. Kf2 (49. g3) 49... Rc1 50. Rf3 (50. Rd1 Rc2+ 51. Kf1) 50... h4 {Black is clearly winning. } 51. Rfd3 Bg3+ 52. Rxg3+ hxg3+ 53. Kxg3 Rc6 54. Kf3 Rd6 {Accuracy: White = 35%, Black = 69%.} 0-1 [Event "PRO League Group Stage"] [Site "chess.com INT"] [Date "2020.01.29"] [Round "4"] [White "Erdos, V."] [Black "Li Chao2"] [Result "1-0"] [ECO "D94"] [WhiteElo "2621"] [BlackElo "2683"] [Annotator "Yip"] [PlyCount "93"] [EventDate "2020.01.06"] [EventType "team"] [EventRounds "7"] [EventCountry "USA"] [SourceTitle "TWIC 1317"] [Source "Mark Crowther"] [SourceDate "2020.02.03"] [SourceVersion "1"] [SourceVersionDate "2020.02.03"] [SourceQuality "2"] [WhiteTeam "Hungary Hunters"] [BlackTeam "China Pandas"] {[%evp 13,93,13,69,19,57,49,115,68,118,95,134,66,136,97,142,115,207,154,321, 265,392,377,484,370,391,362,385,376,379,360,357,316,387,284,416,400,499,469, 481,484,472,469,444,412,413,396,500,453,476,463,496,451,443,430,508,379,374, 379,361,374,667,474,469,453,459,465,458,457,450,419,504,498,431,253,4695,4534, 2883,2852,14792,14792,14792,14792] -The Safest Grunfeld Reloaded(Delchev-Chess Stars 2019)} 1. Nf3 Nf6 2. c4 c6 (2... g6 3. d4 d5 4. e3 Bg7 5. Nc3 O-O 6. Be2 c5 {Is the Delchev recommendation}) 3. Nc3 d5 4. e3 g6 5. d4 Bg7 6. Be2 O-O { Black's early ..c6 move order prevents Black from using the fast ..c5 approach recommended by Delchev} 7. O-O Ne4 8. a4 (8. cxd5 cxd5 9. Nxe4 dxe4 10. Nd2 ) 8... Nxc3 9. bxc3 {[%CAl Bb2c3,Bc3c4,Bc4d5][%mdl 32]} Nd7 ({Predecessor: } 9... c5 10. Ba3 cxd4 11. cxd4 Nc6 12. cxd5 Qxd5 13. Nd2 Be6 14. Bf3 Qd8 15. Rc1 Rc8 {1-0 (72) Huzman,A (2578)-Zoler,D (2487) Tel Aviv 2001}) 10. a5 { White has useful queenside space and the b-file and can play for pressure with little risk} ({Better is} 10. Ba3) 10... Re8 (10... e6) 11. cxd5 cxd5 12. c4 Nf6 (12... Nb8) 13. Qb3 Rb8 ({Black should play} 13... Be6) 14. cxd5 Bg4 (14... b5) 15. h3 Bxf3 {} (15... Bf5) 16. Bxf3 ({ Less strong is} 16. gxf3 Qd7) 16... Qd7 (16... e5 {was worth a try.} 17. dxe6 Rxe6) 17. e4 e6 18. dxe6 Qxe6 19. Qxe6 fxe6 20. e5 Nd5 21. Bxd5 exd5 22. Be3 Rec8 23. Rfc1 Rc4 (23... Bf8 24. Rcb1 Be7) 24. Kf1 Kf7 25. Ke2 Ke6 26. Kd3 Rbc8 27. Rab1 Rxc1 28. Bxc1 {[%mdl 4096] Endgame KRB-KRB} ({Not} 28. Rxc1 Rxc1 29. Bxc1 Bf8) 28... Bf8 29. Bd2 Rc7 30. g4 Be7 31. f4 Bd8 32. Rb5 Rf7 33. Rb1 h5 34. f5+ gxf5 35. gxh5 f4 36. Rg1 Kf5 (36... Rh7 37. Rg6+ (37. Bxf4 Rxh5 38. Rg3 Bxa5) 37... Kf5) 37. Bxf4 Rh7 38. Rg8 { Rf8+ is the strong threat.} Be7 39. Be3 Rxh5 40. Rg7 Ke6 41. Rg6+ Kf5 42. Rh6 Rxh6 43. Bxh6 b5 (43... Bh4 44. Bd2 Be7) 44. a6 {White is clearly winning.} Ke6 45. Bd2 b4 46. Kc2 Kf5 47. Kb3 {Accuracy: White = 80%, Black = 24%.} 1-0