Event: Round 2: Jacobson, Brandon - Dong, Hongfu
Date: 2025-07-29
White: Jacobson, Brandon
WhiteTitle: GM
WhiteElo: 2569
Black: Dong, Hongfu
BlackElo: 2298
Result: 1/2-1/2
ECO: E28
Opening: Nimzo-Indian Defense: Sämisch Variation
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:26:20] } 1... Nf6 { [%eval 0.19] [%clk 1:30:12] } 2. c4 { [%eval 0.18] [%clk 1:26:43] } 2... e6 { [%eval 0.14] [%clk 1:30:37] } 3. Nc3 { [%eval 0.09] [%clk 1:26:57] } 3... Bb4 { [%eval 0.09] [%clk 1:30:59] } 4. e3 { [%eval 0.06] [%clk 1:26:43] } 4... O-O { [%eval 0.11] [%clk 1:31:15] } 5. a3 { [%eval -0.13] [%clk 1:26:56] } 5... Bxc3+ { [%eval -0.16] [%clk 1:31:30] } 6. bxc3 { [%eval -0.08] [%clk 1:27:20] } 6... Nc6 { [%eval 0.13] [%clk 1:26:32] } 7. Bd3 { [%eval 0.08] [%clk 1:13:18] } 7... e5 { [%eval 0.05] [%clk 1:17:02] } 8. f3 { [%eval 0.19] [%clk 1:11:18] } 8... d6 { [%eval 0.17] [%clk 1:02:17] } 9. Ne2 { [%eval 0.24] [%clk 1:11:24] } 9... b6 { [%eval 0.39] [%clk 1:01:12] } 10. e4 { [%eval 0.41] [%clk 1:08:55] } 10... Ba6 { [%eval 0.39] [%clk 0:58:01] } 11. O-O { [%eval 0.43] [%clk 0:51:36] } 11... Na5 { [%eval 0.36] [%clk 0:44:28] } 12. f4 { [%eval 0.45] [%clk 0:48:10] } 12... Nd7 { [%eval 0.44] [%clk 0:33:41] } 13. Ng3 { [%eval 0.53] [%clk 0:43:09] } 13... exd4 { [%eval 0.97] [%clk 0:27:46] } 14. cxd4 { [%eval 1.17] [%clk 0:43:09] } 14... Bxc4 { [%eval 1.01] [%clk 0:28:11] } 15. Bxc4?! { [%eval 0.45] } { Inaccuracy. Rf3 was best. } { [%clk 0:41:22] } 15... Nxc4 { [%eval 0.43] [%clk 0:28:35] } 16. Qg4 { [%eval 0.17] [%clk 0:38:27] } 16... Re8 { [%eval 0.71] [%clk 0:23:23] } 17. f5?! { [%eval 0.07] } { Inaccuracy. e5 was best. } { [%clk 0:21:46] } 17... Nf6 { [%eval 0.21] [%clk 0:10:36] } 18. Qe2 { [%eval 0.72] [%clk 0:21:19] } 18... b5 { [%eval 0.78] [%clk 0:07:30] } 19. Bg5 { [%eval 0.53] [%clk 0:21:30] } 19... h6 { [%eval 0.63] [%clk 0:07:41] } 20. Bh4 { [%eval 0.71] [%clk 0:21:55] } 20... Kf8? { [%eval 2.02] } { Mistake. Nb6 was best. } { [%clk 0:07:49] } 21. a4 { [%eval 2.0] [%clk 0:08:06] } 21... c6 { [%eval 2.29] [%clk 0:07:50] } 22. Rad1 { [%eval 2.24] [%clk 0:05:10] } 22... a6 { [%eval 1.9] [%clk 0:05:59] } 23. Qf3 { [%eval 2.06] [%clk 0:04:16] } 23... Qa5?! { [%eval 3.04] } { Inaccuracy. Qe7 was best. } { [%clk 0:03:48] } 24. Bxf6 { [%eval 2.83] [%clk 0:02:46] } 24... gxf6 { [%eval 2.69] [%clk 0:04:18] } 25. Nh5 { [%eval 2.59] [%clk 0:02:53] } 25... Ke7 { [%eval 2.31] [%clk 0:04:43] } 26. Qf4?? { [%eval 0.0] } { Blunder. Qg3 was best. } { [%clk 0:02:31] } 26... Qc3 { [%eval 0.0] [%clk 0:05:04] } 27. Rfe1 { [%eval 0.0] [%clk 0:02:39] } 27... Nb2 { [%eval 0.0] [%clk 0:03:25] } 28. Rd2 { [%eval 0.0] [%clk 0:01:10] } 28... Nc4 { [%eval 0.0] [%clk 0:03:54] } 29. Rdd1 { [%eval 0.0] [%clk 0:01:37] } 29... Nb2 { [%eval 0.0] [%clk 0:04:20] } 30. Qxh6 { [%eval 0.0] [%clk 0:00:57] } 30... Nxd1 { [%eval 0.0] [%clk 0:04:42] } 31. Rxd1 { [%eval 0.0] [%clk 0:01:21] } 31... Qb3 { [%eval 0.0] [%clk 0:04:46] } 32. Re1 { [%eval 0.0] [%clk 0:01:21] } 32... Kd8 { [%eval 0.0] [%clk 0:01:04] } 33. Nxf6 { [%eval 0.0] [%clk 0:01:06] } 33... Qc3 { [%eval 0.0] [%clk 0:01:13] } 34. Rd1 { [%eval 0.0] [%clk 0:01:24] } 34... Qb3? { [%eval 1.17] } { Mistake. Kc7 was best. } { [%clk 0:01:20] } 35. Rf1? { [%eval 0.0] } { Mistake. Rc1 was best. } { [%clk 0:00:44] } 35... Kc7 { [%eval 0.0] [%clk 0:00:55] } 36. Nxe8+ { [%eval 0.0] [%clk 0:01:04] } 36... Rxe8 { [%eval 0.0] [%clk 0:01:24] } 37. axb5 { [%eval 0.0] [%clk 0:01:20] } 37... axb5 { [%eval 0.0] [%clk 0:01:51] } 38. Qf4 { [%eval 0.0] [%clk 0:01:07] } 38... Qc3 { [%eval -0.15] [%clk 0:01:49] } 39. Rd1 { [%eval -0.12] [%clk 0:00:48] } 39... b4 { [%eval -0.31] [%clk 0:00:47] } 40. h4?? { [%eval -2.84] } { Blunder. e5 was best. } { [%clk 0:15:33] } 40... b3 { [%eval -2.7] [%clk 0:16:00] } 41. e5 { [%eval -2.61] [%clk 0:05:00] } 41... dxe5?? { [%eval 0.0] } { Blunder. b2 was best. } { [%clk 0:15:18] } 42. dxe5 { [%eval -0.15] [%clk 0:05:16] } 42... Qxe5 { [%eval -0.23] [%clk 0:13:55] } 43. Qc4?? { [%eval -3.06] } { Blunder. Qxe5+ was best. } { [%clk 0:04:08] } 43... b2?? { [%eval 0.0] } { Blunder. Qe3+ was best. } { [%clk 0:13:48] } 44. Qxf7+ { [%eval 0.0] [%clk 0:00:35] } 44... Re7 { [%eval 0.0] [%clk 0:14:18] } 45. Qa2 { [%eval 0.0] [%clk 0:00:51] } 45... Qe3+ { [%eval 0.0] [%clk 0:12:01] } 46. Kh2 { [%eval 0.0] [%clk 0:01:15] } 46... Qf4+ { [%eval 0.0] [%clk 0:12:26] } 47. Kg1 { [%eval 0.0] [%clk 0:01:40] } 47... Qe3+ { [%eval 0.0] [%clk 0:12:53] } 48. Kh2 { [%eval 0.0] [%clk 0:02:05] } 48... Qf4+ { [%eval 0.0] [%clk 0:13:18] } 1/2-1/2