Event: Round 4: Derek Sachs - Alex Betaneli
Date: 2025-06-29
White: Derek Sachs
Black: Alex Betaneli
Result: 0-1
ECO: E06
Opening: Catalan Opening: Closed
Variant: Standard
TimeControl: 90+30

1. d4 { [%eval 0.17] [%clk 1:30:58] } 1... d5 { [%eval 0.2] [%clk 1:29:33] } 2. c4 { [%eval 0.18] [%clk 1:30:38] } 2... e6 { [%eval 0.17] [%clk 1:29:55] } 3. Nf3 { [%eval 0.15] [%clk 1:30:36] } 3... Nf6 { [%eval 0.17] [%clk 1:30:19] } 4. g3 { [%eval 0.16] [%clk 1:30:55] } 4... Be7 { [%eval 0.2] [%clk 1:30:44] } 5. Bg2 { [%eval 0.16] [%clk 1:31:21] } 5... O-O { [%eval 0.22] [%clk 1:31:09] } 6. O-O { [%eval 0.2] [%clk 1:31:49] } 6... a5 { [%eval 0.34] [%clk 1:31:33] } 7. Nc3 { [%eval 0.26] [%clk 1:22:34] } 7... c6 { [%eval 0.24] [%clk 1:30:36] } 8. Qc2 { [%eval -0.08] [%clk 1:17:10] } 8... dxc4 { [%eval -0.04] [%clk 1:27:08] } 9. Rd1 { [%eval -0.3] [%clk 1:13:14] } 9... b5 { [%eval -0.28] [%clk 1:24:56] } 10. Ne5 { [%eval -0.29] [%clk 1:10:44] } 10... Nd5 { [%eval -0.26] [%clk 1:24:44] } 11. e4 { [%eval -0.76] [%clk 1:09:02] } 11... Nb4 { [%eval -0.66] [%clk 1:20:05] } 12. Qe2 { [%eval -0.75] [%clk 1:08:47] } 12... f6 { [%eval -0.38] [%clk 1:16:25] } 13. Nf3 { [%eval -0.39] [%clk 1:07:00] } 13... Nd3 { [%eval -0.38] [%clk 1:14:59] } 14. Be3 { [%eval -0.35] [%clk 1:06:41] } 14... a4 { [%eval -0.26] [%clk 1:14:46] } 15. b3 { [%eval -0.75] [%clk 0:57:35] } 15... a3 { [%eval -0.88] [%clk 0:58:44] } 16. bxc4 { [%eval -0.85] [%clk 0:35:36] } 16... Nb2?! { [%eval 0.0] } { Inaccuracy. bxc4 was best. } { [%clk 0:58:34] } 17. cxb5 { [%eval -0.37] [%clk 0:32:28] } 17... Nxd1 { [%eval -0.27] [%clk 0:58:50] } 18. Rxd1 { [%eval -0.31] [%clk 0:32:50] } 18... Bb4 { [%eval 0.01] [%clk 0:51:57] } 19. Qc4 { [%eval -0.34] [%clk 0:28:10] } 19... Qa5 { [%eval -0.28] [%clk 0:48:02] } 20. Rc1?! { [%eval -0.99] } { Inaccuracy. d5 was best. } { [%clk 0:23:53] } 20... cxb5 { [%eval -0.98] [%clk 0:42:46] } 21. Nxb5 { [%eval -1.47] [%clk 0:22:45] } 21... Bd7 { [%eval -1.44] [%clk 0:41:19] } 22. Bf1?! { [%eval -2.19] } { Inaccuracy. Nc7 was best. } { [%clk 0:19:39] } 22... Na6 { [%eval -2.49] [%clk 0:40:08] } 23. d5?! { [%eval -3.41] } { Inaccuracy. Nc7 was best. } { [%clk 0:18:57] } 23... Rfc8 { [%eval -3.45] [%clk 0:38:57] } 24. Qd3 { [%eval -4.04] [%clk 0:18:54] } 24... Rxc1 { [%eval -4.16] [%clk 0:37:39] } 25. Bxc1 { [%eval -4.31] [%clk 0:19:18] } 25... Nc5 { [%eval -3.9] [%clk 0:29:33] } 26. Qc4 { [%eval -4.49] [%clk 0:16:24] } 26... Bxb5 { [%eval -4.46] [%clk 0:28:47] } 27. Qxb5 { [%eval -4.24] [%clk 0:16:53] } 27... Qxb5 { [%eval -4.38] [%clk 0:27:33] } 28. Bxb5 { [%eval -4.15] [%clk 0:17:21] } 28... Nxe4 { [%eval -4.13] [%clk 0:26:50] } 29. dxe6 { [%eval -4.0] [%clk 0:17:13] } 29... Nc3 { [%eval -3.87] [%clk 0:19:12] } 30. Bc4 { [%eval -3.9] [%clk 0:16:02] } 30... Kf8 { [%eval -3.43] [%clk 0:12:57] } 31. Be3 { [%eval -3.35] [%clk 0:13:49] } 31... Rc8 { [%eval -3.39] [%clk 0:12:49] } 32. Bb3 { [%eval -3.27] [%clk 0:13:46] } 32... Bc5 { [%eval -3.4] [%clk 0:11:24] } 33. Bxc5+ { [%eval -3.24] [%clk 0:13:30] } 33... Rxc5 { [%eval -3.53] [%clk 0:11:51] } 34. Kf1 { [%eval -4.08] [%clk 0:12:29] } 34... Nb5 { [%eval -4.04] [%clk 0:10:26] } 35. Ke2 { [%eval -4.31] [%clk 0:12:19] } 35... Ke7 { [%eval -4.13] [%clk 0:09:26] } 36. Kd2 { [%eval -4.13] [%clk 0:11:54] } 36... Rf5 { [%eval -4.02] [%clk 0:08:42] } 37. Nh4 { [%eval -3.76] [%clk 0:11:45] } 37... Rxf2+?? { [%eval 0.0] } { Blunder. Rc5 was best. } { [%clk 0:07:24] } 38. Ke1 { [%eval 0.0] [%clk 0:11:38] } 38... g5 { [%eval 0.19] [%clk 0:04:56] } 39. Kxf2 { [%eval 0.04] [%clk 0:10:20] } 39... gxh4 { [%eval -0.03] [%clk 0:05:25] } 40. g4 { [%eval 0.0] [%clk 0:06:24] } 40... Nd4 { [%eval 0.0] [%clk 0:05:41] } 41. Bc4 { [%eval 0.0] [%clk 0:06:36] } 41... Nxe6 { [%eval 0.0] [%clk 0:05:56] } 42. Ke3 { [%eval 0.0] [%clk 0:06:16] } 42... Ng7 { [%eval 0.0] [%clk 0:05:06] } 43. Kf4 { [%eval 0.0] [%clk 0:06:06] } 43... h6 { [%eval 0.0] [%clk 0:05:08] } 44. h3 { [%eval 0.0] [%clk 0:04:48] } 44... Kd6 { [%eval 0.0] [%clk 0:05:30] } 45. Bb3 { [%eval 0.0] [%clk 0:04:45] } 45... Kc5 { [%eval 0.0] [%clk 0:04:38] } 46. Ke4 { [%eval 0.0] [%clk 0:04:28] } 46... h5 { [%eval 0.0] [%clk 0:04:14] } 47. Kf4 { [%eval 0.0] [%clk 0:03:24] } 47... hxg4 { [%eval 0.0] [%clk 0:03:02] } 48. Kxg4 { [%eval 0.0] [%clk 0:03:53] } 48... Kd4 { [%eval 0.0] [%clk 0:03:13] } 49. Kf4 { [%eval 0.0] [%clk 0:03:15] } 49... Kd3 { [%eval 0.0] [%clk 0:03:05] } 50. Bd5 { [%eval 0.0] [%clk 0:03:11] } 50... Ke2 { [%eval 0.0] [%clk 0:02:37] } 51. Bf7 { [%eval 0.0] [%clk 0:03:06] } 51... Kf2 { [%eval 0.0] [%clk 0:02:48] } 52. Kg4 { [%eval 0.0] [%clk 0:02:12] } 52... Ke3 { [%eval 0.0] [%clk 0:03:12] } 53. Bg6 { [%eval 0.0] [%clk 0:01:53] } 53... Ne6 { [%eval -0.02] [%clk 0:01:15] } 54. Kf5?? { [%eval -6.75] } { Blunder. Kxh4 was best. } { [%clk 0:01:01] } 54... Nf4 { [%eval -6.4] [%clk 0:01:30] } 55. Bf7 { [%eval -7.48] [%clk 0:00:54] } 55... Nxh3 { [%eval -6.58] [%clk 0:01:48] } 56. Kg4 { [%eval -7.13] [%clk 0:00:57] } 56... Ng5 { [%eval -6.59] [%clk 0:01:52] } 57. Bd5 { [%eval -7.7] [%clk 0:00:38] } 57... h3 { [%eval -7.67] [%clk 0:01:41] } 58. Bh1? { [%eval #-17] } { Checkmate is now unavoidable. Kf5 was best. } { [%clk 0:00:31] } 58... Ne4 { [%eval #-16] [%clk 0:01:30] } 59. Bf3 { [%eval #-13] [%clk 0:00:34] } 59... f5+ { [%eval #-12] [%clk 0:01:46] } 0-1