[Event "KCA 2021 Chess Exercise 4"] [Site "https://lichess.org/eMuY9syx"] [Date "2021.07.13"] [White "Leftenan-jurucatur5"] [Black "ahmad1801"] [Result "1-0"] [UTCDate "2021.07.13"] [UTCTime "14:32:45"] [WhiteElo "2099"] [BlackElo "2098"] [Variant "Standard"] [TimeControl "420+3"] [ECO "D90"] [Opening "Grünfeld Defense: Three Knights Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 { D90 Grünfeld Defense: Three Knights Variation } 5. g3 c6 6. cxd5 Nxd5?! { (0.09 → 0.90) Inaccuracy. cxd5 was best. } (6... cxd5 7. Bg2 Ne4 8. O-O O-O 9. Ne5 Bf5 10. Bf4 Nxc3 11. bxc3) 7. Bg2 O-O 8. O-O e6?! { (0.93 → 1.81) Inaccuracy. Nxc3 was best. } (8... Nxc3 9. bxc3) 9. e4 Nxc3 10. bxc3 c5 11. Be3?! { (2.01 → 1.29) Inaccuracy. h4 was best. } (11. h4 b6 12. h5 Bb7 13. Bg5 f6 14. Be3 Re8 15. hxg6 hxg6 16. Nh4 g5 17. Ng6 Nd7) 11... c4?? { (1.29 → 3.47) Blunder. Bd7 was best. } (11... Bd7 12. a4) 12. a4?! { (3.47 → 2.65) Inaccuracy. Nd2 was best. } (12. Nd2) 12... b6 13. Qe2 Ba6 14. Nd2 Qc7? { (2.48 → 4.01) Mistake. e5 was best. } (14... e5 15. dxe5) 15. Rfb1?? { (4.01 → 1.60) Blunder. e5 was best. } (15. e5) 15... Nd7?? { (1.60 → 4.02) Blunder. e5 was best. } (15... e5) 16. Bf1?? { (4.02 → 1.50) Blunder. e5 was best. } (16. e5) 16... Rac8?! { (1.50 → 2.48) Inaccuracy. e5 was best. } (16... e5 17. f4) 17. Qd1? { (2.48 → 1.14) Mistake. e5 was best. } (17. e5 f6) 17... Rfd8?! { (1.14 → 1.78) Inaccuracy. e5 was best. } (17... e5) 18. a5 b5 19. Qc2? { (1.61 → 0.07) Mistake. e5 was best. } (19. e5) 19... Nf6? { (0.07 → 1.73) Mistake. e5 was best. } (19... e5 20. d5) 20. Bg5?? { (1.73 → -0.74) Blunder. e5 was best. } (20. e5 Nd5 21. Bg5 Rd7 22. Ne4 h6 23. Bc1 Bf8 24. Ba3 b4 25. cxb4 Bb5 26. Nc5 Bxc5) 20... h6? { (-0.74 → 0.76) Mistake. e5 was best. } (20... e5) 21. Bf4 Qc6 22. Bg2 Bb7? { (0.83 → 2.35) Mistake. Bf8 was best. } (22... Bf8 23. e5 Nd5 24. Ne4 Qc7 25. Be3 Kg7 26. Nf6 Nxe3 27. fxe3 Be7 28. Qf2 b4 29. Rf1) 23. Qb2?? { (2.35 → -0.09) Blunder. a6 was best. } (23. a6 Ba8 24. Ra5 Nh5 25. Be3 Rb8 26. Qb2 b4 27. Rc5 Qxa6 28. cxb4 Nf6 29. h3 Rdc8) 23... a6 24. Bf3 Qd7 25. Re1 Bc6 26. Nb1?! { (0.00 → -0.97) Inaccuracy. h4 was best. } (26. h4 Bf8 27. Rab1 Ba8 28. Qc1 Nh7 29. Bg2 Nf6) 26... Qb7 27. Nd2 g5?! { (-0.85 → 0.18) Inaccuracy. Nh7 was best. } (27... Nh7 28. Bg2 e5 29. Bxe5 Bxe5 30. dxe5 Ng5 31. Rad1 Ne6 32. Bh3 Rd3 33. Bf1 Rd7 34. Bh3) 28. Be5 g4 29. Bg2 h5 30. f3 Kh7? { (0.32 → 1.52) Mistake. Nh7 was best. } (30... Nh7 31. Bxg7 Kxg7 32. fxg4 hxg4 33. Nf1 b4 34. Rab1 b3 35. Qe2 Qb5 36. Ne3 Qxa5 37. Rec1) 31. fxg4 Nxg4 32. Bxg7 Kxg7 33. Re2 Rg8 34. Rf1 Kh8 35. Qb4?! { (2.33 → 1.50) Inaccuracy. h3 was best. } (35. h3 Nh6) 35... Qc7?! { (1.50 → 2.32) Inaccuracy. Rg7 was best. } (35... Rg7 36. h3 Nh6 37. Qc5 Nf5 38. Rxf5 exf5 39. Qxf5 b4 40. Nxc4 bxc3 41. Nd6 Qb1+ 42. Kh2) 36. Qc5 Rg7?? { (2.24 → 6.68) Blunder. e5 was best. } (36... e5 37. h3) 37. Qxh5+ Kg8 38. d5?? { (6.37 → 1.53) Blunder. Rf4 was best. } (38. Rf4 Qxf4) 38... Be8 39. h3? { (1.70 → 0.54) Mistake. Rf4 was best. } (39. Rf4 Ne5 40. Nf3 Ng6 41. Rf6 Qe7 42. e5 Qc5+ 43. Nd4 b4 44. Qh6 bxc3 45. Qe3 Rb8) 39... Qc5+ 40. Kh1 Ne3?? { (0.73 → 3.34) Blunder. b4 was best. } (40... b4) 41. Rf4 Rxg3? { (3.30 → 5.40) Mistake. Nxg2 was best. } (41... Nxg2 42. Kxg2 Qc7 43. Kh2 b4 44. Nf1 f6 45. Qh4 Qe5 46. Ne3 Rh7 47. Qg4+ Rg7 48. Qxe6+) 42. Qh4?! { (5.40 → 4.27) Inaccuracy. Rf3 was best. } (42. Rf3) 42... Rg7 43. dxe6?? { (3.65 → 0.55) Blunder. Rf3 was best. } (43. Rf3 Nd1) 43... fxe6 44. Nf3?! { (0.44 → -0.39) Inaccuracy. Rf3 was best. } (44. Rf3 Nxg2 45. Rxg2 Rxg2 46. Kxg2 Rc7 47. Rg3+ Rg7 48. Nf3 Qc7 49. Nd4 Qe5 50. Rxg7+ Kxg7) 44... Nf1?? { (-0.39 → 7.31) Blunder. Bh5 was best. } (44... Bh5 45. Rf2) 45. Bxf1 Rcc7 46. Rg4?! { (7.16 → 4.69) Inaccuracy. Rg2 was best. } (46. Rg2) 46... Qa3? { (4.69 → 8.21) Mistake. Bh5 was best. } (46... Bh5 47. Qd8+ Qf8 48. Rxg7+ Rxg7 49. Qxf8+ Kxf8 50. Rf2 Bxf3+ 51. Rxf3+ Ke8 52. Kh2 Kd7 53. h4) 47. Reg2 Qxc3 48. Qd8 Qxf3 49. Qxe8+ Kh7? { (9.39 → Mate in 2) Checkmate is now unavoidable. Qf8 was best. } (49... Qf8 50. Qxe6+) 50. Qh5+ Kg8 51. Rxg7+ Rxg7 52. Qxf3 { Black resigns. } 1-0