Event: Round 4: Robert Donald, Jr Olsen - Waters, Kai
Site: https://lichess.org/broadcast/2025-marshall-chess-club-amateur-championship-jerry-simon-memorial/round-4/IfiJ68oB/uhiJUhWe
Date: 2025-11-23
White: Robert Donald, Jr Olsen
Black: Waters, Kai
BlackElo: 1599
Result: 1-0
ECO: D11
Opening: Slav Defense: Quiet Variation
Variant: Standard
TimeControl: 90+30

1. d4 { [%eval 0.17] [%clk 1:30:58] } 1... d5 { [%eval 0.18] [%clk 1:30:58] } 2. c4 { [%eval 0.18] [%clk 1:31:23] } 2... c6 { [%eval 0.21] [%clk 1:31:26] } 3. Nf3 { [%eval 0.2] [%clk 1:31:47] } 3... Nf6 { [%eval 0.24] [%clk 1:31:54] } 4. e3 { [%eval 0.15] [%clk 1:32:10] } 4... e6 { [%eval 0.23] [%clk 1:32:05] } 5. b3 { [%eval 0.28] [%clk 1:32:25] } 5... Ne4 { [%eval 0.42] [%clk 1:31:37] } 6. Bd3 { [%eval 0.37] [%clk 1:30:41] } 6... Bb4+ { [%eval 0.4] [%clk 1:31:19] } 7. Nbd2 { [%eval 0.41] [%clk 1:28:51] } 7... Qa5?! { [%eval 0.99] } { Inaccuracy. f5 was best. } { [%clk 1:24:19] } 8. O-O { [%eval 1.06] [%clk 1:22:03] } 8... Bc3 { [%eval 1.18] [%clk 1:23:02] } 9. Rb1 { [%eval 1.17] [%clk 1:22:26] } 9... Qxa2? { [%eval 2.87] } { Mistake. Bxd2 was best. } { [%clk 1:22:29] } 10. Nxe4 { [%eval 2.86] [%clk 1:22:35] } 10... dxe4 { [%eval 2.68] [%clk 1:22:41] } 11. Bxe4 { [%eval 2.79] [%clk 1:22:59] } 11... Na6 { [%eval 3.3] [%clk 1:20:30] } 12. Bd2 { [%eval 3.46] [%clk 1:14:00] } 12... Bxd2 { [%eval 3.41] [%clk 1:15:08] } 13. Nxd2?! { [%eval 2.31] } { Inaccuracy. Ra1 was best. } { [%clk 1:14:24] } 13... Qa5 { [%eval 2.34] [%clk 1:14:01] } 14. f4 { [%eval 1.98] [%clk 1:09:32] } 14... Qb6 { [%eval 2.38] [%clk 1:10:04] } 15. c5 { [%eval 2.13] [%clk 1:03:00] } 15... Qb4? { [%eval 4.27] } { Mistake. Qd8 was best. } { [%clk 1:09:54] } 16. Nc4 { [%eval 4.26] [%clk 1:02:16] } 16... O-O { [%eval 5.29] [%clk 1:09:16] } 17. Qc2?! { [%eval 3.39] } { Inaccuracy. Bxh7+ was best. } { [%clk 0:48:50] } 17... Nc7?! { [%eval 5.28] } { Inaccuracy. f5 was best. } { [%clk 1:07:20] } 18. Ra1?! { [%eval 3.69] } { Inaccuracy. Bxh7+ was best. } { [%clk 0:46:56] } 18... f5 { [%eval 4.29] [%clk 1:05:30] } 19. Ra4 { [%eval 4.31] [%clk 0:45:20] } 19... Qxa4 { [%eval 4.41] [%clk 1:05:06] } 20. bxa4 { [%eval 4.39] [%clk 0:45:46] } 20... fxe4 { [%eval 4.35] [%clk 1:05:25] } 21. Qxe4 { [%eval 4.27] [%clk 0:45:24] } 21... Nd5 { [%eval 4.23] [%clk 1:05:13] } 22. Nd6 { [%eval 4.31] [%clk 0:44:11] } 22... Bd7 { [%eval 4.22] [%clk 1:04:49] } 23. a5 { [%eval 3.83] [%clk 0:42:55] } 23... b6 { [%eval 3.81] [%clk 0:57:47] } 24. axb6 { [%eval 3.79] [%clk 0:41:40] } 24... axb6 { [%eval 3.8] [%clk 0:58:06] } 25. cxb6 { [%eval 3.73] [%clk 0:42:04] } 25... Ra3?! { [%eval 4.81] } { Inaccuracy. Nxb6 was best. } { [%clk 0:57:54] } 26. Re1?! { [%eval 3.64] } { Inaccuracy. b7 was best. } { [%clk 0:42:01] } 26... Rb8?! { [%eval 4.77] } { Inaccuracy. Nxb6 was best. } { [%clk 0:56:00] } 27. b7 { [%eval 4.65] [%clk 0:39:44] } 27... Ra4 { [%eval 5.34] [%clk 0:54:35] } 28. Qd3 { [%eval 4.71] [%clk 0:37:32] } 28... g6 { [%eval 4.99] [%clk 0:54:30] } 29. Ne4 { [%eval 4.69] [%clk 0:35:16] } 29... Ra2 { [%eval 4.92] [%clk 0:45:00] } 30. Nc5 { [%eval 4.9] [%clk 0:34:20] } 30... Be8 { [%eval 5.15] [%clk 0:43:40] } 31. Qb3 { [%eval 5.02] [%clk 0:32:23] } 31... Ra7 { [%eval 5.04] [%clk 0:43:28] } 32. Re2 { [%eval 4.81] [%clk 0:28:33] } 32... Bf7 { [%eval 5.24] [%clk 0:43:27] } 33. Ra2 { [%eval 5.14] [%clk 0:27:48] } 33... Raxb7 { [%eval 5.25] [%clk 0:38:32] } 34. Nxb7 { [%eval 5.18] [%clk 0:28:02] } 34... e5 { [%eval 5.28] [%clk 0:38:48] } 35. Rb2 { [%eval 5.32] [%clk 0:26:07] } 35... exd4 { [%eval 5.24] [%clk 0:35:53] } 36. exd4 { [%eval 5.27] [%clk 0:25:24] } 36... Nxf4 { [%eval 5.44] [%clk 0:35:59] } 37. Qf3 { [%eval 5.39] [%clk 0:21:22] } 37... Nd5?! { [%eval 8.82] } { Inaccuracy. g5 was best. } { [%clk 0:36:05] } 38. Nd6 { [%eval 9.49] [%clk 0:19:17] } 38... Rf8 { [%eval #42] [%clk 0:36:00] } 39. Rf2 { [%eval 8.03] [%clk 0:17:27] } 39... g5? { [%eval #15] } { Checkmate is now unavoidable. Ne7 was best. } { [%clk 0:33:20] } 40. Nxf7 { [%eval #17] [%clk 0:17:02] } 40... Rb8 { [%eval #7] [%clk 0:32:14] } 41. Nxg5 { [%eval #6] [%clk 0:15:58] } 41... Rb1+ { [%eval #6] [%clk 0:32:27] } 42. Rf1 { [%eval #5] [%clk 0:16:24] } 42... Rb8 { [%eval #2] [%clk 0:32:34] } 43. Qf7+ { [%eval #1] [%clk 0:16:44] } 43... Kh8 { [%eval #1] [%clk 0:33:01] } 44. Qxh7# { [%clk 0:17:10] } 1-0