Event: Round 6: Piesik, Piotr - Kosteniuk, Alexandra
Date: 2025-05-30
White: Piesik, Piotr
WhiteTitle: IM
WhiteElo: 2377
Black: Kosteniuk, Alexandra
BlackTitle: GM
BlackElo: 2483
Result: 0-1
ECO: E20
Opening: Nimzo-Indian Defense: Kmoch Variation
Variant: Standard
TimeControl: 10+5

1. d4 { [%eval 0.17] [%clk 0:10:09] } 1... Nf6 { [%eval 0.19] [%clk 0:10:09] } 2. c4 { [%eval 0.18] [%clk 0:10:13] } 2... e6 { [%eval 0.14] [%clk 0:10:13] } 3. Nc3 { [%eval 0.09] [%clk 0:10:17] } 3... Bb4 { [%eval 0.09] [%clk 0:10:17] } 4. f3 { [%eval 0.0] [%clk 0:10:20] } 4... c5 { [%eval 0.09] [%clk 0:09:57] } 5. d5 { [%eval 0.0] [%clk 0:10:24] } 5... O-O { [%eval 0.05] [%clk 0:09:58] } 6. e4 { [%eval 0.07] [%clk 0:10:28] } 6... d6 { [%eval 0.17] [%clk 0:10:02] } 7. Ne2 { [%eval 0.11] [%clk 0:10:31] } 7... Re8 { [%eval 0.41] [%clk 0:10:04] } 8. Ng3 { [%eval -0.01] [%clk 0:10:20] } 8... exd5?! { [%eval 0.59] } { Inaccuracy. b5 was best. } { [%clk 0:09:59] } 9. cxd5 { [%eval 0.59] [%clk 0:10:24] } 9... Nbd7 { [%eval 0.48] [%clk 0:10:00] } 10. Be2 { [%eval 0.53] [%clk 0:10:23] } 10... Ne5 { [%eval 0.71] [%clk 0:09:46] } 11. O-O { [%eval 0.63] [%clk 0:10:23] } 11... c4 { [%eval 0.97] [%clk 0:09:44] } 12. Be3 { [%eval 0.62] [%clk 0:10:11] } 12... Qa5?! { [%eval 1.47] } { Inaccuracy. Bd7 was best. } { [%clk 0:09:44] } 13. Qd2 { [%eval 0.96] [%clk 0:09:32] } 13... Bc5 { [%eval 0.88] [%clk 0:09:11] } 14. Kh1 { [%eval 0.7] [%clk 0:09:25] } 14... Bxe3 { [%eval 0.75] [%clk 0:08:54] } 15. Qxe3 { [%eval 0.79] [%clk 0:09:28] } 15... b5?! { [%eval 1.61] } { Inaccuracy. Bd7 was best. } { [%clk 0:08:55] } 16. a3?! { [%eval 0.65] } { Inaccuracy. a4 was best. } { [%clk 0:09:02] } 16... Rb8 { [%eval 0.84] [%clk 0:08:48] } 17. h3?! { [%eval 0.19] } { Inaccuracy. a4 was best. } { [%clk 0:08:40] } 17... Qb6 { [%eval 0.32] [%clk 0:08:33] } 18. Qd2 { [%eval 0.15] [%clk 0:08:17] } 18... a5 { [%eval 0.11] [%clk 0:07:32] } 19. a4 { [%eval 0.16] [%clk 0:07:28] } 19... b4 { [%eval 0.44] [%clk 0:07:30] } 20. Nb5 { [%eval -0.08] [%clk 0:07:32] } 20... Bd7 { [%eval -0.06] [%clk 0:07:10] } 21. f4 { [%eval -0.26] [%clk 0:06:32] } 21... Ng6 { [%eval -0.16] [%clk 0:07:10] } 22. Bxc4 { [%eval -0.01] [%clk 0:06:25] } 22... Nxe4 { [%eval 0.0] } 23. Nxe4 { [%eval 0.0] [%clk 0:06:29] } 23... Rxe4 { [%eval 0.0] [%clk 0:07:16] } 24. Bd3 { [%eval 0.0] [%clk 0:06:26] } 24... Bxb5 { [%eval 0.0] [%clk 0:05:04] } 25. Bxe4?! { [%eval -0.67] } { Inaccuracy. axb5 was best. } { [%clk 0:06:26] } 25... Bxf1 { [%eval -0.66] [%clk 0:05:08] } 26. Rxf1 { [%eval -0.5] [%clk 0:06:29] } 26... Re8 { [%eval -0.41] [%clk 0:05:02] } 27. Qd3?! { [%eval -1.3] } { Inaccuracy. Re1 was best. } { [%clk 0:05:41] } 27... Nf8 { [%eval -1.16] [%clk 0:04:41] } 28. Qc4?! { [%eval -2.11] } { Inaccuracy. Qc2 was best. } { [%clk 0:04:16] } 28... Qe3? { [%eval -0.84] } { Mistake. Nd7 was best. } { [%clk 0:04:06] } 29. Bd3?! { [%eval -1.98] } { Inaccuracy. Bf3 was best. } { [%clk 0:03:19] } 29... Qd2 { [%eval -1.92] [%clk 0:03:57] } 30. b3?! { [%eval -3.01] } { Inaccuracy. Qa6 was best. } { [%clk 0:03:23] } 30... Re3 { [%eval -2.93] [%clk 0:03:54] } 31. Be4?! { [%eval -3.77] } { Inaccuracy. Bb1 was best. } { [%clk 0:03:08] } 31... Rc3 { [%eval -3.61] [%clk 0:03:39] } 32. Qa6 { [%eval -3.92] [%clk 0:03:12] } 32... Rxb3 { [%eval -3.93] [%clk 0:03:31] } 33. Bf3 { [%eval -4.67] [%clk 0:02:22] } 33... Qd3 { [%eval -4.5] [%clk 0:03:21] } 34. Qxd3 { [%eval -4.49] } 34... Rxd3 { [%eval -3.52] [%clk 0:03:25] } 35. Re1 { [%eval -3.53] [%clk 0:01:59] } 35... b3 { [%eval -3.54] [%clk 0:01:53] } 36. Re8 { [%eval -3.54] [%clk 0:01:06] } 36... b2 { [%eval -3.53] [%clk 0:01:57] } 37. Rb8 { [%eval -3.58] [%clk 0:01:10] } 37... Rd2 { [%eval -3.69] [%clk 0:02:01] } 38. Kh2?! { [%eval -5.03] } { Inaccuracy. f5 was best. } { [%clk 0:00:58] } 38... f5 { [%eval -4.83] [%clk 0:01:53] } 39. Kg1 { [%eval -5.49] [%clk 0:00:45] } 39... Kf7 { [%eval -5.1] [%clk 0:01:51] } 40. Rb7+ { [%eval -5.01] [%clk 0:00:45] } 40... Kf6 { [%eval -5.56] [%clk 0:01:54] } 41. Rb6 { [%eval -5.7] [%clk 0:00:40] } 41... Ke7 { [%eval -5.66] [%clk 0:01:53] } 42. Rb7+ { [%eval -5.67] [%clk 0:00:44] } 42... Nd7 { [%eval -5.43] [%clk 0:01:31] } 43. Kf1 { [%clk 0:00:39] } 43... Rc2 { [%clk 0:01:34] } 0-1