Event: Biel Chess Festival GM2-Blz
Site: Biel, Switzerland
Date: 2024-07-21
White: Samunenkov, Ihor
WhiteTitle: GM
WhiteElo: 2471
Black: Donchenko, Alexander
BlackTitle: GM
BlackElo: 2569
Result: 1/2-1/2
ECO: E71
Opening: King's Indian Defense: Makogonov Variation
Variant: Standard
TimeControl: 3' + 2''/mv from move 1

1. d4 { [%eval 0.16] [%clk 0:03:01] } 1... Nf6 { [%eval 0.17] [%clk 0:03:04] } 2. c4 { [%eval 0.21] [%clk 0:03:02] } 2... g6 { [%eval 0.25] [%clk 0:03:05] } 3. Nc3 { [%eval 0.21] [%clk 0:03:02] } 3... Bg7 { [%eval 0.51] [%clk 0:03:06] } 4. e4 { [%eval 0.56] [%clk 0:03:03] } 4... d6 { [%eval 0.46] [%clk 0:03:07] } 5. h3 { [%eval 0.35] [%clk 0:03:03] } 5... O-O { [%eval 0.51] [%clk 0:03:07] } 6. Be3 { [%eval 0.44] [%clk 0:03:04] } 6... Nc6 { [%eval 0.55] [%clk 0:03:09] } 7. d5 { [%eval 0.49] [%clk 0:03:03] } 7... Ne5 { [%eval 0.52] [%clk 0:03:10] } 8. f4 { [%eval 0.74] [%clk 0:03:03] } 8... Ned7 { [%eval 0.71] [%clk 0:03:11] } 9. Nge2 { [%eval 0.66] [%clk 0:03:03] } 9... c6 { [%eval 0.64] [%clk 0:03:08] } 10. Ng3 { [%eval 0.59] [%clk 0:03:03] } 10... a6 { [%eval 0.76] [%clk 0:03:05] } 11. a4 { [%eval 0.5] [%clk 0:03:00] } 11... cxd5 { [%eval 0.44] [%clk 0:02:52] } 12. cxd5 { [%eval 0.52] [%clk 0:03:00] } 12... b6 { [%eval 0.89] [%clk 0:02:46] } 13. Be2 { [%eval 0.88] [%clk 0:02:56] } 13... Bb7 { [%eval 0.83] [%clk 0:02:47] } 14. O-O { [%eval 0.9] [%clk 0:02:56] } 14... Rc8 { [%eval 0.97] [%clk 0:02:47] } 15. Qd2 { [%eval 0.9] [%clk 0:02:40] } 15... Nc5 { [%eval 0.85] [%clk 0:02:47] } 16. Bd1?! { [%eval 0.04] } { Inaccuracy. Rae1 was best. } { [%clk 0:02:33] } 16... e6 { [%eval 0.32] [%clk 0:02:45] } 17. f5 { [%eval 0.16] [%clk 0:02:10] } 17... exf5 { [%eval 0.21] [%clk 0:02:30] } 18. exf5 { [%eval 0.14] [%clk 0:02:10] } 18... Qe8? { [%eval 1.32] } { Mistake. b5 was best. } { [%clk 0:01:46] } 19. Bg5?! { [%eval 0.49] } { Inaccuracy. Bd4 was best. } { [%clk 0:01:29] } 19... Qe5 { [%eval 0.51] [%clk 0:01:21] } 20. Bf4 { [%eval 0.54] [%clk 0:01:25] } 20... Nfe4 { [%eval 0.61] [%clk 0:01:17] } 21. Ngxe4 { [%eval 0.4] [%clk 0:01:03] } 21... Nxe4 { [%eval 0.54] [%clk 0:01:18] } 22. Qe3 { [%eval 0.6] [%clk 0:01:03] } 22... Rxc3 { [%eval 0.57] [%clk 0:01:08] } 23. bxc3 { [%eval 0.52] [%clk 0:01:04] } 23... Qxd5?! { [%eval 1.1] } { Inaccuracy. Qxc3 was best. } { [%clk 0:01:00] } 24. Bf3 { [%eval 1.13] [%clk 0:00:56] } 24... gxf5 { [%eval 1.53] [%clk 0:01:00] } 25. Qxb6?! { [%eval 0.95] } { Inaccuracy. Rfd1 was best. } { [%clk 0:00:50] } 25... Bxc3 { [%eval 0.94] [%clk 0:00:42] } 26. Rad1 { [%eval 1.07] [%clk 0:00:49] } 26... Qc5+ { [%eval 1.06] [%clk 0:00:43] } 27. Qxc5 { [%eval 0.86] [%clk 0:00:49] } 27... dxc5 { [%eval 0.84] [%clk 0:00:45] } 28. Bh6 { [%eval 0.3] [%clk 0:00:40] } 28... Rc8 { [%eval 0.53] [%clk 0:00:42] } 29. Rd7 { [%eval 0.0] [%clk 0:00:35] } 29... Bc6 { [%eval 0.0] [%clk 0:00:42] } 30. Re7 { [%eval 0.0] [%clk 0:00:24] } 30... Bd4+ { [%eval 0.0] [%clk 0:00:41] } 31. Kh2 { [%eval 0.0] [%clk 0:00:15] } 31... Bf6 { [%eval 0.0] [%clk 0:00:37] } 32. Ra7 { [%eval 0.0] [%clk 0:00:14] } 32... Be5+ { [%eval 0.0] [%clk 0:00:37] } 33. g3 { [%eval 0.0] [%clk 0:00:11] } 33... Nxg3 { [%eval 0.03] [%clk 0:00:34] } 34. Bxc6 { [%eval 0.01] [%clk 0:00:11] } 34... Nxf1+ { [%eval 0.0] [%clk 0:00:34] } 35. Kg1 { [%eval 0.08] [%clk 0:00:07] } 35... Ng3 { [%eval 0.04] [%clk 0:00:30] } 36. Bd5 { [%eval 0.01] [%clk 0:00:05] } 36... Bc7 { [%eval 0.52] [%clk 0:00:19] } 37. Bb7 { [%eval 0.03] [%clk 0:00:04] } 37... Rd8 { [%eval 0.03] [%clk 0:00:15] } 38. Bxa6 { [%eval 0.05] [%clk 0:00:05] } 38... Bb8 { [%eval 0.13] [%clk 0:00:11] } 39. Rb7 { [%eval 0.08] [%clk 0:00:05] } 39... Ne4 { [%eval 0.08] [%clk 0:00:06] } 40. Bf1 { [%eval 0.0] [%clk 0:00:04] } 40... Be5 { [%eval -0.04] [%clk 0:00:06] } 41. Kg2 { [%eval -0.06] [%clk 0:00:03] } 41... Ra8 { [%eval 0.01] [%clk 0:00:06] } 42. Bb5 { [%eval -0.14] [%clk 0:00:04] } 42... Nd6 { [%eval -0.18] [%clk 0:00:07] } 43. Rd7 { [%eval -0.44] [%clk 0:00:05] } 43... Nxb5 { [%eval -0.74] [%clk 0:00:06] } 44. axb5 { [%eval -0.68] [%clk 0:00:05] } 44... Rb8?! { [%eval -0.03] } { Inaccuracy. c4 was best. } { [%clk 0:00:08] } 45. b6 { [%eval -0.52] [%clk 0:00:06] } 45... Bg7 { [%eval -0.08] [%clk 0:00:06] } 46. Bxg7 { [%eval -0.02] [%clk 0:00:03] } 46... Kxg7 { [%eval -0.02] [%clk 0:00:08] } 47. b7 { [%eval -0.01] [%clk 0:00:04] } 47... Kf6 { [%eval 0.0] [%clk 0:00:07] } 48. Rc7 { [%eval 0.0] [%clk 0:00:05] } 48... Ke6 { [%eval 0.0] [%clk 0:00:08] } 49. Kf3 { [%eval 0.0] [%clk 0:00:04] } 49... Kd6 { [%eval 0.0] [%clk 0:00:05] } 50. Rxf7 { [%eval 0.0] [%clk 0:00:04] } 50... Kc6 { [%eval 0.0] [%clk 0:00:07] } 51. Rxh7 { [%eval 0.02] [%clk 0:00:04] } 51... Rxb7?? { [%eval 26.17] } { Blunder. c4 was best. } { [%clk 0:00:08] } 52. Rxb7 { [%eval 18.14] [%clk 0:00:04] } 52... Kxb7 { [%eval 9.67] [%clk 0:00:09] } 53. h4 { [%eval 6.9] [%clk 0:00:05] } 53... c4 { [%eval 5.7] [%clk 0:00:05] } 54. h5?? { [%eval 0.0] } { Blunder. Ke3 was best. } { [%clk 0:00:04] } 54... c3 { [%eval 0.0] [%clk 0:00:06] } 55. Ke2 { [%eval 0.0] [%clk 0:00:04] } 55... f4 { [%eval 0.0] [%clk 0:00:08] } 56. h6 { [%eval 0.0] [%clk 0:00:05] } 56... f3+ { [%eval 0.0] [%clk 0:00:09] } 57. Kxf3 { [%eval 0.0] [%clk 0:00:05] } 57... c2 { [%eval 0.0] [%clk 0:00:10] } 58. h7 { [%eval 0.0] [%clk 0:00:06] } 58... c1=Q { [%clk 0:00:11] } 59. h8=Q { [%clk 0:00:05] } 59... Qc6+ { [%clk 0:00:11] } 1/2-1/2