Event: Round 8: Koster, Ramon - Grooten, Tommy
Date: 2024-09-14
White: Koster, Ramon
WhiteTitle: FM
Black: Grooten, Tommy
BlackElo: 1989
Result: 1/2-1/2
ECO: A65
Opening: Benoni Defense: King's Pawn Line
Variant: Standard

1. d4 { [%eval 0.17] [%clk 0:03:03] } 1... Nf6 { [%eval 0.17] [%clk 0:03:04] } 2. c4 { [%eval 0.17] [%clk 0:03:05] } 2... e6 { [%eval 0.11] [%clk 0:03:05] } 3. Nc3 { [%eval 0.0] [%clk 0:03:06] } 3... c5 { [%eval 0.53] [%clk 0:03:05] } 4. d5 { [%eval 0.48] [%clk 0:03:07] } 4... exd5 { [%eval 0.73] [%clk 0:03:07] } 5. cxd5 { [%eval 0.74] [%clk 0:03:08] } 5... d6 { [%eval 0.61] [%clk 0:03:08] } 6. e4 { [%eval 0.68] [%clk 0:03:09] } 6... g6 { [%eval 0.74] [%clk 0:03:10] } 7. Bd3 { [%eval 0.48] [%clk 0:03:10] } 7... Bg7 { [%eval 0.42] [%clk 0:03:11] } 8. h3 { [%eval 0.4] [%clk 0:03:12] } 8... Nbd7 { [%eval 0.9] [%clk 0:03:12] } 9. Nf3 { [%eval 1.06] [%clk 0:03:11] } 9... O-O { [%eval 0.96] [%clk 0:03:12] } 10. O-O { [%eval 0.94] [%clk 0:03:09] } 10... a6 { [%eval 0.96] [%clk 0:03:06] } 11. Bf4 { [%eval 0.75] [%clk 0:03:09] } 11... Qe7 { [%eval 1.07] [%clk 0:03:03] } 12. a4 { [%eval 1.14] [%clk 0:03:09] } 12... Nh5 { [%eval 1.3] [%clk 0:03:03] } 13. Bh2 { [%eval 1.37] [%clk 0:03:10] } 13... Ne5 { [%eval 1.48] [%clk 0:03:02] } 14. Be2 { [%eval 1.48] [%clk 0:03:12] } 14... Nxf3+ { [%eval 1.37] [%clk 0:03:02] } 15. Bxf3 { [%eval 1.4] [%clk 0:03:13] } 15... Nf6 { [%eval 1.6] [%clk 0:03:02] } 16. e5 { [%eval 1.8] [%clk 0:03:10] } 16... Ne8 { [%eval 1.58] [%clk 0:02:48] } 17. exd6 { [%eval 1.49] [%clk 0:02:55] } 17... Nxd6 { [%eval 1.39] [%clk 0:02:49] } 18. Re1 { [%eval 1.47] [%clk 0:02:54] } 18... Qd8 { [%eval 1.38] [%clk 0:02:48] } 19. Rc1 { [%eval 0.87] [%clk 0:02:39] } 19... b5?! { [%eval 1.51] } { Inaccuracy. b6 was best. } { [%clk 0:02:40] } 20. axb5?! { [%eval 0.51] } { Inaccuracy. b3 was best. } { [%clk 0:02:17] } 20... axb5 { [%eval 0.51] [%clk 0:02:38] } 21. Bxd6 { [%eval 0.32] [%clk 0:02:14] } 21... Qxd6 { [%eval 0.36] [%clk 0:02:40] } 22. Ne4 { [%eval 0.46] [%clk 0:01:48] } 22... Qf4?! { [%eval 1.16] } { Inaccuracy. Qb6 was best. } { [%clk 0:02:39] } 23. Rxc5 { [%eval 0.8] [%clk 0:01:26] } 23... Ra4 { [%eval 1.05] [%clk 0:02:14] } 24. g3 { [%eval 0.83] [%clk 0:01:08] } 24... Qb8 { [%eval 0.69] [%clk 0:02:00] } 25. Qb3 { [%eval 0.71] [%clk 0:01:04] } 25... Bd7 { [%eval 0.84] [%clk 0:01:47] } 26. Nc3?? { [%eval -1.55] } { Blunder. d6 was best. } { [%clk 0:00:56] } 26... Ra6?? { [%eval 0.85] } { Blunder. Bd4 was best. } { [%clk 0:01:20] } 27. Re7?? { [%eval -1.68] } { Blunder. Ne4 was best. } { [%clk 0:00:49] } 27... Qd6 { [%eval -1.79] [%clk 0:01:19] } 28. Rxd7 { [%eval -1.75] [%clk 0:00:37] } 28... Qxd7? { [%eval -0.45] } { Mistake. Qxc5 was best. } { [%clk 0:01:20] } 29. Kg2 { [%eval -0.43] [%clk 0:00:19] } 29... Bxc3 { [%eval -0.32] [%clk 0:00:56] } 30. Qxc3 { [%eval -0.24] [%clk 0:00:11] } 30... Rb6 { [%eval 0.0] [%clk 0:00:56] } 31. b4 { [%eval 0.0] [%clk 0:00:13] } 31... Rd8 { [%eval 0.0] [%clk 0:00:51] } 32. h4 { [%eval 0.0] [%clk 0:00:13] } 32... h5 { [%eval 0.0] [%clk 0:00:51] } 33. Qd4 { [%eval -0.35] [%clk 0:00:11] } 33... Qd6 { [%eval -0.04] [%clk 0:00:52] } 34. Qe3 { [%eval -0.08] [%clk 0:03:02] } 1/2-1/2