Event: Round 4: Niko Haesemeyer - Stolzenwald, Frank
Date: 2025-05-03
White: Niko Haesemeyer
Black: Stolzenwald, Frank
BlackElo: 1581
Result: 0-1
ECO: A05
Opening: King's Indian Attack
Variant: Standard

1. Nf3 { [%eval 0.14] [%clk 0:59:59] } 1... Nf6 { [%eval 0.23] [%clk 0:59:53] } 2. g3 { [%eval 0.11] [%clk 0:59:55] } 2... d5 { [%eval 0.19] [%clk 0:59:45] } 3. Bg2 { [%eval 0.13] [%clk 0:59:51] } 3... Nbd7 { [%eval 0.26] [%clk 0:59:30] } 4. O-O { [%eval 0.12] [%clk 0:59:40] } 4... Nb6 { [%eval 0.63] [%clk 0:59:25] } 5. d3 { [%eval 0.46] [%clk 0:59:30] } 5... Bf5 { [%eval 0.75] [%clk 0:59:09] } 6. b3 { [%eval 0.63] [%clk 0:58:13] } 6... e6 { [%eval 0.51] [%clk 0:58:58] } 7. Bb2 { [%eval 0.62] [%clk 0:58:03] } 7... c5?! { [%eval 1.33] } { Inaccuracy. Bc5 was best. } { [%clk 0:58:40] } 8. Nbd2 { [%eval 1.12] [%clk 0:57:51] } 8... Qc7 { [%eval 1.53] [%clk 0:58:38] } 9. c4 { [%eval 1.39] [%clk 0:57:08] } 9... d4 { [%eval 1.95] [%clk 0:58:25] } 10. b4 { [%eval 1.97] [%clk 0:56:30] } 10... e5 { [%eval 1.82] [%clk 0:57:59] } 11. b5?! { [%eval 0.69] } { Inaccuracy. Re1 was best. } { [%clk 0:55:33] } 11... Nc8?! { [%eval 1.49] } { Inaccuracy. Rd8 was best. } { [%clk 0:56:56] } 12. a4 { [%eval 0.94] [%clk 0:54:49] } 12... a5?! { [%eval 2.05] } { Inaccuracy. Bd6 was best. } { [%clk 0:56:55] } 13. Re1?! { [%eval 1.01] } { Inaccuracy. e3 was best. } { [%clk 0:53:28] } 13... Ra7?? { [%eval 3.21] } { Blunder. Bd6 was best. } { [%clk 0:56:44] } 14. Qb3?? { [%eval 0.85] } { Blunder. e3 was best. } { [%clk 0:52:03] } 14... Bd6 { [%eval 0.88] [%clk 0:56:32] } 15. e3 { [%eval 0.82] [%clk 0:51:18] } 15... O-O { [%eval 0.85] [%clk 0:56:17] } 16. exd4 { [%eval 0.79] [%clk 0:50:37] } 16... exd4 { [%eval 0.79] [%clk 0:56:15] } 17. Nh4 { [%eval 0.84] [%clk 0:49:42] } 17... Be6 { [%eval 1.17] [%clk 0:55:40] } 18. Ne4 { [%eval 1.11] [%clk 0:49:28] } 18... Nxe4 { [%eval 1.03] [%clk 0:55:35] } 19. Rxe4 { [%eval 1.14] [%clk 0:48:53] } 19... Nb6 { [%eval 1.27] [%clk 0:54:52] } 20. Nf3 { [%eval 0.85] [%clk 0:44:21] } 20... Raa8 { [%eval 1.0] [%clk 0:54:35] } 21. Bc1?! { [%eval 0.16] } { Inaccuracy. Rae1 was best. } { [%clk 0:43:32] } 21... Rae8 { [%eval 0.53] [%clk 0:54:28] } 22. Bf4?? { [%eval -2.39] } { Blunder. Ng5 was best. } { [%clk 0:43:08] } 22... Bf5?? { [%eval 0.32] } { Blunder. Bxc4 was best. } { [%clk 0:54:13] } 23. Bxd6 { [%eval 0.05] [%clk 0:42:46] } 23... Qxd6 { [%eval 0.05] [%clk 0:54:07] } 24. Rxe8 { [%eval 0.13] [%clk 0:42:18] } 24... Rxe8 { [%eval 0.15] [%clk 0:54:06] } 25. Re1 { [%eval -0.12] [%clk 0:41:53] } 25... Rxe1+ { [%eval -0.05] [%clk 0:53:52] } 26. Nxe1 { [%eval -0.11] [%clk 0:41:48] } 26... Qe7 { [%eval -0.14] [%clk 0:53:39] } 27. Nf3?? { [%eval -3.51] } { Blunder. Kf1 was best. } { [%clk 0:40:31] } 27... Qe2 { [%eval -3.42] [%clk 0:53:27] } 28. Nxd4?? { [%eval #-4] } { Checkmate is now unavoidable. Qb1 was best. } { [%clk 0:38:54] } 28... cxd4?? { [%eval -4.86] } { Lost forced checkmate sequence. Qe1+ was best. } { [%clk 0:53:09] } 29. c5?? { [%eval #-4] } { Checkmate is now unavoidable. Qb1 was best. } { [%clk 0:38:48] } 29... Bxd3?? { [%eval -5.11] } { Lost forced checkmate sequence. Qe1+ was best. } { [%clk 0:52:35] } 30. cxb6?? { [%eval #-2] } { Checkmate is now unavoidable. h4 was best. } { [%clk 0:37:45] } 30... Qe1+ { [%eval #-1] [%clk 0:52:29] } 31. Bf1 { [%clk 0:37:31] } 31... Qxf1# { [%clk 0:52:08] } 0-1