[Event "GM Konstantin Sakaev School"] [Site "https://lichess.org/eOkk3xVE"] [Date "2020.07.18"] [White "chess_osk"] [Black "KIRICHEK5555"] [Result "1-0"] [UTCDate "2020.07.18"] [UTCTime "09:49:53"] [WhiteElo "1850"] [BlackElo "1889"] [WhiteRatingDiff "+19"] [BlackRatingDiff "-7"] [Variant "Standard"] [TimeControl "420+3"] [ECO "B21"] [Opening "Sicilian Defense: McDonnell Attack"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 c5 2. f4 { B21 Sicilian Defense: McDonnell Attack } Qc7 3. d3 Nc6 4. Nf3 Nf6 5. Be2 e6 6. O-O Be7 7. h3?! { (0.54 → -0.47) Inaccuracy. e5 was best. } (7. e5) 7... O-O 8. Nc3 a6 9. a4?! { (-0.16 → -0.77) Inaccuracy. e5 was best. } (9. e5) 9... b6 10. e5 Nd5? { (-0.95 → 0.39) Mistake. Ne8 was best. } (10... Ne8 11. Qe1) 11. Ne4?! { (0.39 → -0.67) Inaccuracy. Nxd5 was best. } (11. Nxd5) 11... h6 12. g4?! { (-0.50 → -1.41) Inaccuracy. c3 was best. } (12. c3 d6 13. Nxd6 Bxd6 14. exd6 Qxd6 15. Nd2 Bb7 16. Nc4 Qc7 17. Qb3 Rad8 18. Bd2 Nce7) 12... f5 13. gxf5 Rxf5 14. Nh4?? { (-1.42 → -4.91) Blunder. Ne1 was best. } (14. Ne1 d6) 14... Bxh4 15. Nd6 Rf8 16. Bh5 Be7 17. c4 Ndb4 18. Ne4 Nd4 19. Kh2 Bb7 20. Rg1 Bxe4 21. dxe4 d6?? { (-7.99 → -3.30) Blunder. Bg5 was best. } (21... Bg5 22. Rxg5 hxg5 23. Bg6 Rxf4 24. Bxf4 gxf4 25. Qh5 Qxe5 26. Qh7+ Kf8 27. Qh8+ Ke7 28. Qxa8) 22. Qg4 Bd8 23. f5? { (-2.83 → -5.55) Mistake. exd6 was best. } (23. exd6 Qd7) 23... dxe5?! { (-5.55 → -3.77) Inaccuracy. Kh8 was best. } (23... Kh8) 24. Bxh6 Bf6? { (-4.35 → -2.68) Mistake. Ra7 was best. } (24... Ra7 25. fxe6 Nf3+ 26. Qxf3 Rxf3 27. Rxg7+ Qxg7 28. Bxg7 Rf2+ 29. Kg1 Nd3 30. Bxe5 Rc2 31. Bf7+) 25. fxe6 Ra7?? { (-2.67 → 3.68) Blunder. Qe7 was best. } (25... Qe7) 26. Bf7+?? { (3.68 → -2.23) Blunder. Raf1 was best. } (26. Raf1) 26... Rxf7 27. exf7+ Qxf7 28. Raf1 Nbc6?? { (-1.89 → 3.64) Blunder. Ne6 was best. } (28... Ne6 29. Rg3) 29. h4?? { (3.64 → -0.11) Blunder. Bxg7 was best. } (29. Bxg7) 29... Kh8?? { (-0.11 → 3.59) Blunder. Ne6 was best. } (29... Ne6 30. Bxg7 Nxg7 31. Qg6 Qxg6 32. Rxg6 Bxh4 33. Rxc6 Bg5 34. Kg2 Rb7 35. Kh3 Bf4 36. Rg1) 30. Bg5?? { (3.59 → -0.27) Blunder. Bxg7+ was best. } (30. Bxg7+ Bxg7 31. Rxf7 Rxf7 32. Rg3 Ne7 33. Qd7 Ndc6 34. Rb3 Kh7 35. Rxb6 Rf6 36. h5 a5) 30... Nd8?? { (-0.27 → 9.32) Blunder. Kh7 was best. } (30... Kh7 31. Rg2 Re7 32. Bxf6 gxf6 33. h5 Re6 34. Qg6+ Qxg6 35. Rxg6 Na5 36. Kh3 Nxc4 37. Rfxf6) 31. Bxf6 gxf6? { (8.61 → Mate in 13) Checkmate is now unavoidable. Kg8 was best. } (31... Kg8 32. Bxg7) 32. Rxf6 Qg7 33. Rg6? { (Mate in 13 → 8.62) Lost forced checkmate sequence. Qh5+ was best. } (33. Qh5+ Kg8 34. Qe8+ Kh7 35. Rxg7+ Rxg7 36. Qxd8 Rg6 37. Rf7+ Rg7 38. Rf8 Nf3+ 39. Rxf3 Rg8) 33... Qf7? { (8.62 → Mate in 2) Checkmate is now unavoidable. Qxg6 was best. } (33... Qxg6 34. Qxg6) 34. Rg8+? { (Mate in 2 → 7.69) Lost forced checkmate sequence. Rh6+ was best. } (34. Rh6+ Qh7 35. Qg8#) 34... Kh7 35. Rxd8?? { (7.54 → 1.24) Blunder. Rf1 was best. } (35. Rf1) 35... Nf3+ 36. Kh3?? { (1.69 → 0.00) Blunder. Kh1 was best. } (36. Kh1 Nxg1 37. Kxg1 Qg7 38. Qxg7+ Rxg7+ 39. Kf2 Rg4 40. Rd7+ Kh6 41. Rd6+ Kh5 42. Ke3 Rg3+) 36... Nxg1+ 37. Qxg1 Qf3+ 38. Qg3 Qf1+?! { (0.00 → 0.84) Inaccuracy. Qh1+ was best. } (38... Qh1+ 39. Qh2 Qxe4 40. Qg2 Qf5+ 41. Qg4 Qf1+ 42. Qg2) 39. Qg2 Qxg2+?? { (0.86 → 2.71) Blunder. Qxc4 was best. } (39... Qxc4) 40. Kxg2 Rg7+ 41. Kf3 Kh6? { (2.50 → 4.46) Mistake. Rf7+ was best. } (41... Rf7+ 42. Ke3) 42. Rd6+ Kh5 43. Rxb6 Kxh4 44. Rh6+ Kg5 45. Rxa6?? { (3.71 → 0.23) Blunder. Re6 was best. } (45. Re6) 45... Kh4?? { (0.23 → 6.61) Blunder. Rb7 was best. } (45... Rb7 46. Ra5 Rxb2 47. Ke3 Rb3+ 48. Kd2 Rh3 49. Rxc5 Kf4 50. Kc2 Kxe4 51. Rd5 Ra3 52. a5) 46. Rh6+ Kg5 47. Re6 Kh4? { (4.57 → 11.13) Mistake. Ra7 was best. } (47... Ra7 48. b3) 48. Rxe5 Rg3+ 49. Kf4 Rg4+ 50. Kf5 Rg5+ 51. Ke6 Rg6+ 52. Kd5 Ra6 53. Kxc5 Rxa4 54. b4 Ra6 55. b5 Rh6?! { (32.80 → Mate in 20) Checkmate is now unavoidable. Ra5 was best. } (55... Ra5 56. Kd6) 56. b6 Kg4 57. Rf5 Kg3?! { (72.89 → Mate in 17) Checkmate is now unavoidable. Rh1 was best. } (57... Rh1 58. Kc6) 58. Kb5 Rh8?! { (61.75 → Mate in 16) Checkmate is now unavoidable. Rh4 was best. } (58... Rh4 59. c5) 59. c5 Kg4 60. c6 Kg3 61. c7 Kg4 62. b7 Kg3 63. b8=Q Rxb8+ 64. cxb8=Q+ Kg2 65. Qg8+ Kh3 66. Rh5# { White wins by checkmate. } 1-0