Event: Round 21: Zwahr, Paul - Donchenko, Alexander
Date: 2025-05-24
White: Zwahr, Paul
WhiteTitle: FM
WhiteElo: 2357
Black: Donchenko, Alexander
BlackTitle: GM
BlackElo: 2578
Result: 0-1
ECO: B13
Opening: Caro-Kann Defense: Exchange Variation
Variant: Standard
TimeControl: 3+2

1. e4 { [%eval 0.18] [%clk 0:03:03] } 1... c6 { [%eval 0.23] [%clk 0:03:04] } 2. d4 { [%eval 0.24] [%clk 0:03:03] } 2... d5 { [%eval 0.24] [%clk 0:03:05] } 3. exd5 { [%eval 0.08] [%clk 0:03:04] } 3... cxd5 { [%eval 0.18] [%clk 0:03:06] } 4. Bd3 { [%eval 0.1] [%clk 0:03:05] } 4... Nf6 { [%eval 0.17] [%clk 0:03:07] } 5. h3 { [%eval 0.09] [%clk 0:03:05] } 5... Nc6 { [%eval 0.05] [%clk 0:03:08] } 6. c3 { [%eval 0.0] [%clk 0:03:06] } 6... g6 { [%eval 0.23] [%clk 0:03:08] } 7. Nf3 { [%eval 0.23] [%clk 0:03:06] } 7... Bf5 { [%eval 0.24] [%clk 0:03:08] } 8. O-O { [%eval 0.23] [%clk 0:03:06] } 8... Bg7 { [%eval 0.4] [%clk 0:03:09] } 9. Re1 { [%eval 0.21] [%clk 0:03:07] } 9... O-O { [%eval 0.33] [%clk 0:03:09] } 10. Bf1 { [%eval 0.28] [%clk 0:03:08] } 10... a6 { [%eval 0.5] [%clk 0:03:08] } 11. Bf4 { [%eval 0.51] [%clk 0:03:03] } 11... b5 { [%eval 0.87] [%clk 0:03:09] } 12. Nbd2 { [%eval 1.0] [%clk 0:02:49] } 12... b4 { [%eval 1.06] [%clk 0:03:03] } 13. Qa4 { [%eval 0.75] [%clk 0:02:36] } 13... Qb6 { [%eval 0.58] [%clk 0:03:04] } 14. Be3 { [%eval 0.2] [%clk 0:02:11] } 14... bxc3 { [%eval 0.22] [%clk 0:02:56] } 15. bxc3 { [%eval 0.22] [%clk 0:02:11] } 15... Qc7 { [%eval 0.3] [%clk 0:02:50] } 16. Rac1 { [%eval 0.35] [%clk 0:01:35] } 16... Rfc8 { [%eval 0.33] [%clk 0:02:47] } 17. c4 { [%eval 0.26] [%clk 0:01:30] } 17... dxc4 { [%eval 0.29] [%clk 0:02:42] } 18. Bxc4 { [%eval 0.33] [%clk 0:01:26] } 18... Qd6 { [%eval 0.58] [%clk 0:02:21] } 19. Bxf7+ { [%eval 0.13] [%clk 0:01:20] } 19... Kxf7 { [%eval 0.12] [%clk 0:02:16] } 20. Rxc6 { [%eval 0.14] [%clk 0:01:19] } 20... Rxc6 { [%eval 0.15] [%clk 0:02:11] } 21. Qxc6 { [%eval 0.21] [%clk 0:01:19] } 21... Qxc6 { [%eval 0.14] [%clk 0:02:09] } 22. Ne5+ { [%eval 0.16] [%clk 0:01:18] } 22... Ke8 { [%eval 0.16] [%clk 0:02:06] } 23. Nxc6 { [%eval 0.17] [%clk 0:01:18] } 23... Rc8 { [%eval 0.19] [%clk 0:02:07] } 24. Ne5 { [%eval 0.2] [%clk 0:01:10] } 24... Nd5 { [%eval 0.18] [%clk 0:02:05] } 25. Ndc4 { [%eval 0.16] [%clk 0:01:02] } 25... Be6 { [%eval 0.22] [%clk 0:01:59] } 26. Bd2 { [%eval 0.16] [%clk 0:00:53] } 26... Nf6 { [%eval 0.14] [%clk 0:01:42] } 27. Ne3 { [%eval 0.04] [%clk 0:00:47] } 27... Rd8 { [%eval 0.22] [%clk 0:01:33] } 28. Bc3 { [%eval 0.02] [%clk 0:00:40] } 28... Ne4 { [%eval 0.06] [%clk 0:01:29] } 29. Bb2 { [%eval 0.0] [%clk 0:00:40] } 29... Bxe5 { [%eval 0.02] [%clk 0:01:26] } 30. dxe5 { [%eval 0.0] [%clk 0:00:41] } 30... Rd2 { [%eval -0.06] [%clk 0:01:25] } 31. Nd1?! { [%eval -0.98] } { Inaccuracy. Nc4 was best. } { [%clk 0:00:13] } 31... Nxf2?! { [%eval -0.05] } { Inaccuracy. Nc5 was best. } { [%clk 0:01:15] } 32. Nxf2?? { [%eval -2.13] } { Blunder. Bc1 was best. } { [%clk 0:00:05] } 32... Rxb2 { [%eval -2.03] [%clk 0:01:16] } 33. a4 { [%eval -1.88] [%clk 0:00:06] } 33... Rb4 { [%eval -1.72] [%clk 0:01:14] } 34. Re4 { [%eval -2.3] [%clk 0:00:07] } 34... Rb2? { [%eval -1.03] } { Mistake. Rc4 was best. } { [%clk 0:04:15] } 35. Rd4?! { [%eval -1.86] } { Inaccuracy. Rh4 was best. } { [%clk 0:00:07] } 35... a5 { [%eval -1.77] [%clk 0:00:55] } 36. Ne4? { [%eval -3.55] } { Mistake. g4 was best. } { [%clk 0:00:04] } 36... Bd7?? { [%eval -0.14] } { Blunder. Rb4 was best. } { [%clk 0:00:48] } 37. Nc5 { [%eval -0.12] [%clk 0:00:05] } 37... Bc6 { [%eval -0.23] [%clk 0:00:49] } 38. Rg4?? { [%eval -2.41] } { Blunder. g4 was best. } { [%clk 0:00:05] } 38... Rc2 { [%eval -2.28] [%clk 0:00:47] } 39. Nb3 { [%eval -2.48] [%clk 0:00:05] } 39... Bd5 { [%eval -2.16] [%clk 0:00:45] } 40. Nd4? { [%eval -3.65] } { Mistake. Rg3 was best. } { [%clk 0:00:03] } 40... Rc4 { [%eval -3.48] [%clk 0:00:44] } 41. Nb5?! { [%eval -5.06] } { Inaccuracy. e6 was best. } { [%clk 0:00:03] } 41... Rxg4 { [%eval -5.01] } 42. hxg4 { [%eval -4.98] [%clk 0:00:05] } 42... Bc6 { [%eval -4.63] [%clk 0:00:41] } 43. Nc3 { [%eval -5.36] [%clk 0:00:06] } 43... Kd7 { [%eval -5.54] [%clk 0:00:38] } 44. Kf2 { [%eval -5.71] [%clk 0:00:07] } 44... Ke6 { [%eval -5.54] [%clk 0:00:39] } 45. g3 { [%eval -6.01] [%clk 0:00:08] } 45... Kxe5 { [%eval -5.97] [%clk 0:00:38] } 46. Ke3 { [%eval -5.9] [%clk 0:00:09] } 46... g5 { [%eval -5.51] [%clk 0:00:39] } 47. Kd3 { [%eval -5.43] [%clk 0:00:09] } 47... Bd7 { [%eval -4.98] [%clk 0:00:39] } 48. Kc4 { [%eval -6.04] [%clk 0:00:10] } 48... Bxg4 { [%eval -5.82] [%clk 0:00:40] } 49. Kb5 { [%eval -7.27] [%clk 0:00:11] } 49... h5 { [%eval -7.71] [%clk 0:00:39] } 50. Kxa5 { [%eval -9.6] [%clk 0:00:12] } 50... h4 { [%eval -9.14] [%clk 0:00:40] } 51. gxh4 { [%eval -9.12] [%clk 0:00:12] } 51... gxh4 { [%eval -13.27] } 52. Nb1?! { [%eval #-13] } { Checkmate is now unavoidable. Na2 was best. } { [%clk 0:00:10] } 52... h3 { [%eval #-12] [%clk 0:00:41] } 53. Nd2 { [%eval #-11] [%clk 0:00:11] } 53... h2 { [%eval #-10] [%clk 0:00:42] } 0-1