Event: Round 2: Jaap Van den Berg - Gunnar Sieber
Date: 2025-05-30
White: Jaap Van den Berg
Black: Gunnar Sieber
Result: 1/2-1/2
ECO: C77
Opening: Ruy Lopez: Morphy Defense, Anderssen Variation
Variant: Standard

1. e4 { [%eval 0.18] [%clk 1:50:16] } 1... e5 { [%eval 0.22] [%clk 1:50:08] } 2. Nf3 { [%eval 0.13] [%clk 1:50:11] } 2... Nc6 { [%eval 0.21] [%clk 1:49:55] } 3. Bb5 { [%eval 0.15] [%clk 1:50:15] } 3... a6 { [%eval 0.21] [%clk 1:49:54] } 4. Ba4 { [%eval 0.11] [%clk 1:50:03] } 4... Nf6 { [%eval 0.18] [%clk 1:49:45] } 5. d3 { [%eval 0.04] [%clk 1:49:43] } 5... b5 { [%eval 0.19] [%clk 1:49:15] } 6. Bb3 { [%eval 0.02] [%clk 1:49:48] } 6... Be7 { [%eval 0.16] [%clk 1:49:18] } 7. c3 { [%eval 0.08] [%clk 1:49:51] } 7... O-O { [%eval 0.09] [%clk 1:49:15] } 8. Nbd2 { [%eval 0.06] [%clk 1:49:08] } 8... d5 { [%eval 0.06] [%clk 1:48:16] } 9. O-O { [%eval 0.18] [%clk 1:44:50] } 9... Bb7 { [%eval 0.26] [%clk 1:45:42] } 10. Re1 { [%eval 0.15] [%clk 1:42:47] } 10... dxe4 { [%eval 0.18] [%clk 1:41:28] } 11. Nxe4 { [%eval 0.0] [%clk 1:41:24] } 11... Nxe4 { [%eval 0.0] [%clk 1:40:58] } 12. dxe4 { [%eval 0.02] [%clk 1:41:13] } 12... Bf6 { [%eval 0.26] [%clk 1:37:12] } 13. Qe2 { [%eval 0.21] [%clk 1:38:16] } 13... Qe7 { [%eval 0.29] [%clk 1:36:20] } 14. Bc2 { [%eval 0.21] [%clk 1:34:09] } 14... Rfd8 { [%eval 0.3] [%clk 1:35:58] } 15. Be3 { [%eval 0.19] [%clk 1:33:29] } 15... Rd7 { [%eval 0.57] [%clk 1:35:06] } 16. Rad1 { [%eval 0.21] [%clk 1:32:31] } 16... Rad8 { [%eval 0.33] [%clk 1:35:07] } 17. Rxd7 { [%eval 0.34] [%clk 1:32:05] } 17... Rxd7 { [%eval 0.81] [%clk 1:35:12] } 18. b4 { [%eval 0.7] [%clk 1:31:17] } 18... Qd8?! { [%eval 1.49] } { Inaccuracy. Nd8 was best. } { [%clk 1:33:22] } 19. Nd2? { [%eval 0.01] } { Mistake. a4 was best. } { [%clk 1:26:15] } 19... Bg5?! { [%eval 0.59] } { Inaccuracy. Nd4 was best. } { [%clk 1:16:57] } 20. Bxg5 { [%eval 0.42] [%clk 1:22:57] } 20... Qxg5 { [%eval 0.4] [%clk 1:17:01] } 21. Nb3 { [%eval 0.15] [%clk 1:22:27] } 21... Bc8 { [%eval 0.25] [%clk 1:11:50] } 22. Rd1 { [%eval 0.13] [%clk 1:20:42] } 22... Rxd1+ { [%eval 0.14] [%clk 1:08:29] } 23. Bxd1 { [%eval 0.18] [%clk 1:19:07] } 23... Qd8 { [%eval 0.2] [%clk 1:04:34] } 24. Nc5 { [%eval 0.09] [%clk 1:18:04] } 24... Qd6 { [%eval 0.14] [%clk 1:00:25] } 25. Bb3 { [%eval 0.03] [%clk 1:17:00] } 25... Nd8 { [%eval 0.19] [%clk 0:59:03] } 26. h3 { [%eval 0.19] [%clk 1:15:44] } 26... g6 { [%eval 0.19] [%clk 0:53:29] } 27. a4 { [%eval 0.0] [%clk 1:09:09] } 27... c6?! { [%eval 1.01] } { Inaccuracy. bxa4 was best. } { [%clk 0:52:18] } 28. axb5?! { [%eval 0.0] } { Inaccuracy. a5 was best. } { [%clk 1:08:53] } 28... a5 { [%eval 0.0] } 1/2-1/2