Event: Round 4: Jacobson, Aaron - Zeltsan, Joseph
Date: 2025-01-22
White: Jacobson, Aaron
WhiteTitle: IM
WhiteElo: 2358
Black: Zeltsan, Joseph
BlackTitle: IM
BlackElo: 2350
Result: 1-0
ECO: A42
Opening: Pterodactyl Defense: Central, Bogolubovia
Variant: Standard

1. c4 { [%eval 0.12] [%clk 0:25:00] } 1... g6 { [%eval 0.22] [%clk 0:25:00] } 2. d4 { [%eval 0.29] [%clk 0:24:47] } 2... Bg7 { [%eval 0.51] [%clk 0:25:00] } 3. e4 { [%eval 0.58] [%clk 0:24:38] } 3... d6 { [%eval 0.55] [%clk 0:25:00] } 4. Nc3 { [%eval 0.46] [%clk 0:24:33] } 4... c5 { [%eval 0.57] [%clk 0:25:00] } 5. Nge2 { [%eval 0.39] [%clk 0:24:17] } 5... Qa5 { [%eval 0.87] [%clk 0:18:52] } 6. Be3?! { [%eval 0.29] } { Inaccuracy. d5 was best. } { [%clk 0:21:49] } 6... Nc6 { [%eval 0.36] [%clk 0:17:35] } 7. Qd2 { [%eval 0.12] [%clk 0:21:49] } 7... Nf6 { [%eval 0.17] [%clk 0:17:00] } 8. f3 { [%eval 0.13] [%clk 0:21:49] } 8... O-O { [%eval 0.02] [%clk 0:16:49] } 9. O-O-O { [%eval -0.07] [%clk 0:21:48] } 9... a6 { [%eval -0.01] [%clk 0:12:23] } 10. Kb1 { [%eval 0.04] [%clk 0:21:40] } 10... b5 { [%eval 0.41] [%clk 0:12:23] } 11. dxc5 { [%eval 0.45] [%clk 0:21:06] } 11... Ne5?! { [%eval 1.15] } { Inaccuracy. dxc5 was best. } { [%clk 0:09:41] } 12. Nf4 { [%eval 1.2] [%clk 0:18:59] } 12... bxc4?! { [%eval 1.84] } { Inaccuracy. e6 was best. } { [%clk 0:08:15] } 13. Ncd5 { [%eval 1.72] [%clk 0:14:48] } 13... Nxd5 { [%eval 1.6] [%clk 0:08:15] } 14. Nxd5 { [%eval 1.8] [%clk 0:13:26] } 14... Qxd2 { [%eval 1.58] [%clk 0:07:13] } 15. Nxe7+ { [%eval 1.59] [%clk 0:13:17] } 15... Kh8 { [%eval 1.53] [%clk 0:07:13] } 16. Rxd2 { [%eval 1.55] [%clk 0:13:17] } 16... dxc5 { [%eval 1.66] [%clk 0:07:11] } 17. Bxc5 { [%eval 1.69] [%clk 0:11:03] } 17... Rb8 { [%eval 1.61] [%clk 0:06:57] } 18. Bd4 { [%eval 1.64] [%clk 0:06:47] } 18... Rd8?! { [%eval 2.36] } { Inaccuracy. Be6 was best. } { [%clk 0:06:57] } 19. Bxe5?? { [%eval 0.0] } { Blunder. Bxc4 was best. } { [%clk 0:06:21] } 19... Rxd2 { [%eval 0.0] [%clk 0:06:55] } 20. Bxb8 { [%eval 0.0] [%clk 0:06:21] } 20... Rxb2+ { [%eval 0.0] [%clk 0:06:55] } 21. Kc1 { [%eval 0.02] [%clk 0:06:21] } 21... Rxb8 { [%eval 0.06] [%clk 0:05:20] } 22. Bxc4 { [%eval 0.0] [%clk 0:06:21] } 22... Be6 { [%eval 0.0] [%clk 0:03:35] } 23. Bxe6?? { [%eval -2.24] } { Blunder. Bd5 was best. } { [%clk 0:05:31] } 23... fxe6 { [%eval -2.26] [%clk 0:03:35] } 24. Rd1 { [%eval -2.22] [%clk 0:05:31] } 24... Bf8 { [%eval -2.16] [%clk 0:03:35] } 25. Rd6 { [%eval -2.67] [%clk 0:04:15] } 25... Bxe7 { [%eval -2.58] [%clk 0:03:35] } 26. Rxe6 { [%eval -2.83] [%clk 0:03:41] } 26... Ba3+ { [%eval -2.84] [%clk 0:03:27] } 27. Kd1 { [%eval -2.76] [%clk 0:03:41] } 27... a5 { [%eval -2.77] [%clk 0:02:39] } 28. Ra6 { [%eval -2.58] [%clk 0:03:30] } 28... Rb1+ { [%eval -2.8] [%clk 0:02:32] } 29. Ke2 { [%eval -2.65] [%clk 0:03:30] } 29... Rb2+ { [%eval -2.65] [%clk 0:02:32] } 30. Kf1 { [%eval -2.59] [%clk 0:03:30] } 30... Bb4 { [%eval -2.59] [%clk 0:02:24] } 31. a3 { [%eval -2.69] [%clk 0:03:30] } 31... Bc3 { [%eval -2.67] [%clk 0:02:24] } 32. Rc6 { [%eval -3.0] [%clk 0:03:10] } 32... Rb3 { [%eval -3.1] [%clk 0:02:21] } 33. a4 { [%eval -3.07] [%clk 0:02:50] } 33... Bb4 { [%eval -2.52] [%clk 0:02:15] } 34. e5?! { [%eval -3.44] } { Inaccuracy. Rc8+ was best. } { [%clk 0:02:41] } 34... Re3 { [%eval -3.27] [%clk 0:02:09] } 35. e6 { [%eval -4.09] [%clk 0:01:58] } 35... Kg7 { [%eval -3.98] [%clk 0:02:07] } 36. Kf2 { [%eval -4.06] [%clk 0:01:58] } 36... Ra3 { [%eval -3.96] [%clk 0:02:07] } 37. f4 { [%eval -4.16] [%clk 0:01:49] } 37... Rxa4 { [%eval -4.04] [%clk 0:01:55] } 38. g4 { [%eval -4.26] [%clk 0:01:19] } 38... Kf6 { [%eval -4.22] [%clk 0:01:55] } 39. Kf3 { [%eval -4.48] [%clk 0:00:48] } 39... Bd2 { [%eval -4.45] [%clk 0:01:55] } 40. f5 { [%eval -4.54] [%clk 0:00:40] } 40... gxf5 { [%eval -4.55] [%clk 0:01:45] } 41. gxf5 { [%eval -4.6] [%clk 0:00:40] } 41... Bg5 { [%eval -3.88] [%clk 0:01:30] } 42. Rc7 { [%eval -4.06] [%clk 0:00:39] } 42... Kxf5?? { [%eval 0.0] } { Blunder. Rf4+ was best. } { [%clk 0:01:11] } 43. Rc5+ { [%eval 0.0] [%clk 0:00:34] } 43... Kg6 { [%eval 0.03] [%clk 0:01:11] } 44. Rxg5+ { [%eval 0.0] [%clk 0:00:34] } 44... Kxg5?? { [%eval 2.65] } { Blunder. Kf6 was best. } { [%clk 0:01:11] } 45. e7 { [%eval 2.63] [%clk 0:00:34] } 45... Ra3+ { [%eval 2.64] [%clk 0:01:11] } 46. Ke2 { [%eval 2.54] [%clk 0:00:21] } 46... Ra2+ { [%eval 2.58] [%clk 0:01:01] } 47. Kd3 { [%eval 2.61] [%clk 0:00:21] } 47... Rxh2 { [%eval 2.63] [%clk 0:00:57] } 48. e8=Q { [%eval 2.62] [%clk 0:00:21] } 48... Rh3+ { [%eval 2.56] [%clk 0:00:57] } 49. Ke4 { [%eval 2.51] [%clk 0:00:21] } 49... Rh5?? { [%eval 71.94] } { Blunder. Rh4+ was best. } { [%clk 0:00:21] } 50. Qf7?? { [%eval 2.75] } { Blunder. Qe7+ was best. } { [%clk 0:00:17] } 50... Rh4+ { [%eval 2.75] [%clk 0:00:10] } 51. Ke5 { [%eval 2.74] [%clk 0:00:17] } 51... Kg4 { [%eval 2.75] [%clk 0:00:10] } 52. Qf4+ { [%eval 2.64] [%clk 0:00:10] } 52... Kh3 { [%eval 3.44] [%clk 0:00:10] } 53. Qf3+ { [%eval 3.34] [%clk 0:00:10] } 53... Kh2 { [%eval 3.22] [%clk 0:00:10] } 54. Qf2+ { [%eval 2.88] [%clk 0:00:10] } 54... Kh3 { [%eval 2.64] [%clk 0:00:10] } 55. Kf5 { [%eval 2.65] [%clk 0:00:09] } 55... a4?? { [%eval 62.95] } { Blunder. Rb4 was best. } { [%clk 0:00:06] } 56. Qf3+ { [%eval 75.04] [%clk 0:00:09] } 56... Kh2 { [%eval 6.44] [%clk 0:00:06] } 57. Kg5?? { [%eval 2.73] } { Blunder. Qf2+ was best. } { [%clk 0:00:09] } 57... Rh3 { [%eval 80.53] [%clk 0:00:06] } 58. Qf2+ { [%eval 80.53] [%clk 0:00:09] } 58... Kh1 { [%eval 66.72] [%clk 0:00:06] } 59. Kg4 { [%eval 26.8] [%clk 0:00:09] } 59... Rb3 { [%eval 5.81] [%clk 0:00:06] } 60. Qf1+ { [%eval 19.52] [%clk 0:00:09] } 60... Kh2 { [%eval 5.83] [%clk 0:00:06] } 61. Qe2+?? { [%eval 2.76] } { Blunder. Qf2+ was best. } { [%clk 0:00:09] } 61... Kg1 { [%eval 2.75] [%clk 0:00:06] } 62. Qd1+ { [%eval 2.4] [%clk 0:00:09] } 62... Kg2?! { [%eval 3.34] } { Inaccuracy. Kf2 was best. } { [%clk 0:00:06] } 63. Qc2+ { [%eval 2.62] [%clk 0:00:09] } 63... Kg1 { [%eval 3.01] [%clk 0:00:06] } 64. Qc5+ { [%eval 2.64] [%clk 0:00:09] } 64... Kh2?? { [%eval 5.52] } { Blunder. Kf1 was best. } { [%clk 0:00:06] } 65. Qd6+? { [%eval 3.25] } { Mistake. Qf2+ was best. } { [%clk 0:00:09] } 65... Kg1 { [%eval 3.84] [%clk 0:00:06] } 66. Qd4+ { [%eval 3.11] [%clk 0:00:09] } 66... Kg2 { [%eval 2.94] [%clk 0:00:06] } 67. Qe4+ { [%eval 2.56] [%clk 0:00:09] } 67... Kf2 { [%eval 2.58] [%clk 0:00:06] } 68. Qxa4 { [%eval 2.55] [%clk 0:00:09] } 68... Rd3 { [%eval 2.61] [%clk 0:00:04] } 69. Qc2+ { [%eval 2.54] [%clk 0:00:09] } 69... Ke3 { [%eval 2.55] [%clk 0:00:04] } 70. Qc5+ { [%eval 2.59] [%clk 0:00:09] } 70... Ke2 { [%eval 2.69] [%clk 0:00:04] } 71. Kf4 { [%eval 2.77] [%clk 0:00:09] } 71... Rd2?? { [%eval 31.25] } { Blunder. Kd2 was best. } { [%clk 0:00:04] } 72. Qc4+ { [%eval 6.71] [%clk 0:00:09] } 72... Kf2 { [%eval 38.32] [%clk 0:00:04] } 73. Qc3 { [%eval 8.1] [%clk 0:00:09] } 73... Rd7? { [%eval #8] } { Checkmate is now unavoidable. Re2 was best. } { [%clk 0:00:04] } 74. Qb2+ { [%eval #12] [%clk 0:00:09] } 74... Ke1 { [%eval #13] [%clk 0:00:04] } 75. Qb4+ { [%eval #9] [%clk 0:00:09] } 75... Kf2 { [%eval #9] [%clk 0:00:04] } 76. Qc5+ { [%eval #10] [%clk 0:00:09] } 76... Ke1 { [%eval #10] [%clk 0:00:04] } 77. Ke4?? { [%eval 6.92] } { Lost forced checkmate sequence. Qa5+ was best. } 1-0