Event: Ronda 4: Jackson, Leo Daniel Olivera - Sevilla Ramirez, Brandon Samuel
Date: 2025-07-14
White: Jackson, Leo Daniel Olivera
WhiteElo: 1882
Black: Sevilla Ramirez, Brandon Samuel
BlackElo: 1590
Result: 1-0
ECO: E65
Opening: King's Indian Defense: Fianchetto Variation, Yugoslav Variation
Variant: Standard

1. d4 { [%eval 0.17] [%clk 0:10:09] } 1... Nf6 { [%eval 0.19] [%clk 0:10:09] } 2. c4 { [%eval 0.18] [%clk 0:10:13] } 2... g6 { [%eval 0.28] [%clk 0:10:13] } 3. Nf3 { [%eval 0.22] [%clk 0:10:14] } 3... Bg7 { [%eval 0.27] [%clk 0:10:17] } 4. g3 { [%eval 0.15] [%clk 0:10:18] } 4... O-O { [%eval 0.21] [%clk 0:10:17] } 5. Bg2 { [%eval 0.1] [%clk 0:10:21] } 5... d6 { [%eval 0.34] [%clk 0:10:21] } 6. Nc3 { [%eval 0.25] [%clk 0:10:25] } 6... c5 { [%eval 0.36] [%clk 0:10:21] } 7. O-O { [%eval 0.26] [%clk 0:10:27] } 7... Nbd7 { [%eval 0.6] [%clk 0:10:11] } 8. d5 { [%eval 0.72] [%clk 0:10:20] } 8... Nb6 { [%eval 0.83] [%clk 0:10:11] } 9. Nd2 { [%eval 0.83] [%clk 0:10:20] } 9... a6 { [%eval 0.96] [%clk 0:10:07] } 10. Rb1 { [%eval 0.57] [%clk 0:10:10] } 10... Nfd7 { [%eval 0.75] [%clk 0:10:02] } 11. Qc2 { [%eval 0.79] [%clk 0:09:48] } 11... Ne5 { [%eval 1.34] [%clk 0:09:56] } 12. b3 { [%eval 1.35] [%clk 0:09:44] } 12... e6 { [%eval 1.88] [%clk 0:09:37] } 13. h3?! { [%eval 0.98] } { Inaccuracy. dxe6 was best. } { [%clk 0:09:44] } 13... Rb8? { [%eval 2.46] } { Mistake. exd5 was best. } { [%clk 0:09:23] } 14. f4 { [%eval 2.35] [%clk 0:09:04] } 14... Ned7 { [%eval 2.36] [%clk 0:09:27] } 15. Bb2?! { [%eval 1.27] } { Inaccuracy. dxe6 was best. } { [%clk 0:09:04] } 15... exd5 { [%eval 1.25] [%clk 0:09:03] } 16. Nxd5 { [%eval 0.97] [%clk 0:08:43] } 16... Nxd5 { [%eval 0.91] [%clk 0:09:00] } 17. Bxg7?! { [%eval -0.14] } { Inaccuracy. cxd5 was best. } { [%clk 0:07:51] } 17... Kxg7? { [%eval 0.98] } { Mistake. Ne3 was best. } { [%clk 0:08:35] } 18. cxd5 { [%eval 1.01] [%clk 0:07:55] } 18... Nf6?! { [%eval 1.72] } { Inaccuracy. f5 was best. } { [%clk 0:08:29] } 19. e4 { [%eval 1.65] [%clk 0:07:55] } 19... Re8 { [%eval 2.22] [%clk 0:08:29] } 20. Qc3?! { [%eval 1.43] } { Inaccuracy. Rbd1 was best. } { [%clk 0:07:29] } 20... Kg8?! { [%eval 2.28] } { Inaccuracy. b5 was best. } { [%clk 0:08:13] } 21. Qf3?! { [%eval 1.65] } { Inaccuracy. Rbd1 was best. } { [%clk 0:07:29] } 21... h5 { [%eval 2.13] [%clk 0:07:49] } 22. e5 { [%eval 2.23] [%clk 0:06:30] } 22... Nh7 { [%eval 2.15] [%clk 0:07:10] } 23. Nc4?! { [%eval 1.26] } { Inaccuracy. Rbe1 was best. } { [%clk 0:06:30] } 23... dxe5 { [%eval 1.21] [%clk 0:06:28] } 24. fxe5 { [%eval 1.37] [%clk 0:06:13] } 24... Ng5 { [%eval 1.2] [%clk 0:06:25] } 25. Qe3 { [%eval 0.97] [%clk 0:04:49] } 25... Nxh3+? { [%eval 2.68] } { Mistake. b5 was best. } { [%clk 0:06:02] } 26. Kh2 { [%eval 2.57] [%clk 0:04:44] } 26... Qg5?! { [%eval 4.01] } { Inaccuracy. Ng5 was best. } { [%clk 0:04:34] } 27. Bxh3? { [%eval 2.38] } { Mistake. Qf3 was best. } { [%clk 0:04:24] } 27... Qxe3 { [%eval 2.45] [%clk 0:04:26] } 28. Nxe3 { [%eval 2.5] [%clk 0:04:24] } 28... Rxe5 { [%eval 2.28] [%clk 0:04:26] } 29. Rfe1 { [%eval 2.66] [%clk 0:03:48] } 29... Bxh3 { [%eval 2.51] [%clk 0:04:30] } 30. Kxh3 { [%eval 2.57] [%clk 0:03:51] } 30... Rbe8 { [%eval 2.54] [%clk 0:04:34] } 31. d6 { [%eval 2.45] [%clk 0:03:51] } 31... Rd8 { [%eval 2.06] [%clk 0:02:20] } 32. Nc4?? { [%eval 0.09] } { Blunder. Rbd1 was best. } { [%clk 0:03:17] } 32... Rxe1 { [%eval 0.09] [%clk 0:02:20] } 33. Rxe1 { [%eval 0.19] [%clk 0:03:21] } 33... b5 { [%eval 0.14] [%clk 0:02:23] } 34. Ne5 { [%eval 0.0] [%clk 0:02:43] } 34... Rxd6 { [%eval 0.04] [%clk 0:02:25] } 35. Rc1 { [%eval 0.0] [%clk 0:02:43] } 35... Rd5 { [%eval 0.0] [%clk 0:02:22] } 36. Nf3 { [%eval 0.0] [%clk 0:02:34] } 36... Kg7 { [%eval 0.0] [%clk 0:02:05] } 37. Re1 { [%eval 0.0] [%clk 0:02:34] } 37... c4 { [%eval 0.0] [%clk 0:01:47] } 38. bxc4 { [%eval 0.05] [%clk 0:02:08] } 38... bxc4 { [%eval 0.0] [%clk 0:01:52] } 39. Rc1 { [%eval 0.0] [%clk 0:02:10] } 39... Rc5 { [%eval 0.0] [%clk 0:01:48] } 40. Nd2 { [%eval 0.0] [%clk 0:02:09] } 40... Ra5 { [%eval 0.0] [%clk 0:01:31] } 41. Rc2 { [%eval 0.0] [%clk 0:02:11] } 41... Rc5 { [%eval 0.0] [%clk 0:01:17] } 42. Rxc4 { [%eval 0.0] [%clk 0:02:10] } 42... Rxc4 { [%eval 0.0] [%clk 0:01:21] } 43. Nxc4 { [%eval 0.0] [%clk 0:02:09] } 43... f5?? { [%eval 2.05] } { Blunder. Kf6 was best. } { [%clk 0:01:12] } 44. Ne5?? { [%eval 0.0] } { Blunder. Ne3 was best. } { [%clk 0:02:16] } 44... g5 { [%eval 0.0] [%clk 0:01:08] } 45. Nd7 { [%eval 0.0] [%clk 0:02:16] } 45... Kf7 { [%eval 0.0] [%clk 0:00:57] } 46. Nc5 { [%eval 0.0] [%clk 0:02:18] } 46... a5 { [%eval 0.0] [%clk 0:00:56] } 47. a4 { [%eval 0.0] [%clk 0:02:23] } 47... h4?? { [%eval 8.68] } { Blunder. f4 was best. } { [%clk 0:00:50] } 48. gxh4 { [%eval 7.49] [%clk 0:02:22] } 48... gxh4?! { [%eval 71.71] } { Inaccuracy. g4+ was best. } { [%clk 0:00:54] } 49. Kxh4 { [%eval 65.33] [%clk 0:02:22] } 49... Ke7?! { [%eval #22] } { Checkmate is now unavoidable. Kf6 was best. } { [%clk 0:00:59] } 50. Nb7 { [%eval #22] [%clk 0:02:07] } 50... Kd7 { [%eval #21] [%clk 0:00:54] } 51. Nxa5 { [%eval #20] [%clk 0:02:08] } 51... Kc7 { [%eval #20] [%clk 0:00:58] } 52. Nb3 { [%eval #19] [%clk 0:02:09] } 52... Kd6 { [%eval #19] [%clk 0:00:55] } 53. a5 { [%eval #19] [%clk 0:02:08] } 53... Kd5 { [%eval #19] [%clk 0:00:44] } 1-0