Event: Round 6: Badacsonyi, Stanley - Nelson, Leon
Date: 2025-07-29
White: Badacsonyi, Stanley
WhiteTitle: FM
WhiteElo: 2307
Black: Nelson, Leon
BlackElo: 1660
Result: 1-0
ECO: E73
Opening: King's Indian Defense: Semi-Averbakh System
Variant: Standard
TimeControl: 3+2

1. d4 { [%eval 0.17] [%clk 0:03:03] } 1... Nf6 { [%eval 0.19] [%clk 0:03:03] } 2. c4 { [%eval 0.18] [%clk 0:03:05] } 2... g6 { [%eval 0.28] [%clk 0:03:04] } 3. Nc3 { [%eval 0.18] [%clk 0:03:06] } 3... Bg7 { [%eval 0.51] [%clk 0:03:05] } 4. e4 { [%eval 0.4] [%clk 0:03:07] } 4... O-O { [%eval 0.53] [%clk 0:03:06] } 5. Be2 { [%eval 0.49] [%clk 0:03:09] } 5... d6 { [%eval 0.48] [%clk 0:03:07] } 6. Be3 { [%eval 0.5] [%clk 0:03:10] } 6... a6 { [%eval 0.56] [%clk 0:03:06] } 7. h4 { [%eval 0.33] [%clk 0:03:10] } 7... h5 { [%eval 0.29] [%clk 0:03:06] } 8. f3 { [%eval 0.23] [%clk 0:03:12] } 8... Nbd7 { [%eval 0.67] [%clk 0:02:48] } 9. Nh3 { [%eval 0.75] [%clk 0:03:12] } 9... c5 { [%eval 0.76] [%clk 0:02:49] } 10. dxc5 { [%eval 0.56] [%clk 0:03:09] } 10... Nxc5 { [%eval 0.61] [%clk 0:02:43] } 11. Nf2 { [%eval 0.38] [%clk 0:03:09] } 11... Be6 { [%eval 0.58] [%clk 0:02:34] } 12. Qd2 { [%eval 0.11] [%clk 0:03:08] } 12... Qa5 { [%eval 0.51] [%clk 0:02:31] } 13. O-O?! { [%eval -0.18] } { Inaccuracy. Rb1 was best. } { [%clk 0:03:02] } 13... Rab8?! { [%eval 0.81] } { Inaccuracy. b5 was best. } { [%clk 0:02:18] } 14. Rfd1 { [%eval 0.36] [%clk 0:03:00] } 14... b5 { [%eval 0.37] [%clk 0:02:15] } 15. Nd5 { [%eval 0.08] [%clk 0:02:58] } 15... Qd8?! { [%eval 0.91] } { Inaccuracy. Nxd5 was best. } { [%clk 0:02:11] } 16. cxb5? { [%eval -0.26] } { Mistake. Nb4 was best. } { [%clk 0:02:44] } 16... axb5? { [%eval 0.86] } { Mistake. Bxd5 was best. } { [%clk 0:02:11] } 17. Nf4?! { [%eval 0.3] } { Inaccuracy. Nb4 was best. } { [%clk 0:02:45] } 17... Bd7?? { [%eval 2.26] } { Blunder. Bc4 was best. } { [%clk 0:02:03] } 18. Rac1?? { [%eval 0.45] } { Blunder. Bxc5 was best. } { [%clk 0:02:45] } 18... Na4?! { [%eval 1.49] } { Inaccuracy. Ne6 was best. } { [%clk 0:01:49] } 19. b3 { [%eval 1.59] [%clk 0:02:45] } 19... Nb6 { [%eval 1.55] [%clk 0:01:49] } 20. N2d3?! { [%eval 0.86] } { Inaccuracy. N4d3 was best. } { [%clk 0:02:42] } 20... e5 { [%eval 0.96] [%clk 0:01:39] } 21. Nh3 { [%eval 0.84] [%clk 0:02:34] } 21... Bxh3 { [%eval 0.99] [%clk 0:01:29] } 22. gxh3 { [%eval 1.01] [%clk 0:02:36] } 22... d5 { [%eval 1.07] [%clk 0:01:11] } 23. Nb4 { [%eval 1.07] [%clk 0:02:36] } 23... dxe4?? { [%eval 3.99] } { Blunder. Qd7 was best. } { [%clk 0:01:07] } 24. Qxd8 { [%eval 3.9] [%clk 0:02:37] } 24... Rbxd8 { [%eval 3.9] [%clk 0:01:08] } 25. Bxb6 { [%eval 3.92] [%clk 0:02:38] } 25... Ra8 { [%eval 4.01] [%clk 0:00:49] } 26. fxe4 { [%eval 4.31] [%clk 0:02:32] } 26... Nxe4 { [%eval 4.18] [%clk 0:00:49] } 27. Bf3 { [%eval 4.23] [%clk 0:02:34] } 27... f5 { [%eval 4.32] [%clk 0:00:46] } 28. Rd7 { [%eval 4.53] [%clk 0:02:30] } 28... Bh6 { [%eval 4.62] [%clk 0:00:45] } 29. Rc6 { [%eval 4.44] [%clk 0:02:29] } 29... Nf6 { [%eval 4.65] [%clk 0:00:16] } 30. Rdd6 { [%eval 4.54] [%clk 0:02:19] } 30... Bg7 { [%eval 4.34] [%clk 0:00:13] } 31. Rc7 { [%eval 3.79] [%clk 0:02:08] } 31... e4 { [%eval 3.65] [%clk 0:00:09] } 32. Be2 { [%eval 3.56] [%clk 0:02:03] } 32... f4?! { [%eval 4.55] } { Inaccuracy. Ne8 was best. } { [%clk 0:00:05] } 33. Bxb5 { [%eval 4.42] [%clk 0:02:00] } 33... e3 { [%eval 4.74] [%clk 0:00:05] } 34. Re6 { [%eval 4.69] [%clk 0:02:00] } 34... Rab8 { [%eval 5.04] [%clk 0:00:04] } 35. Bc4 { [%eval 4.77] [%clk 0:02:00] } 35... Kh7?! { [%eval 6.25] } { Inaccuracy. Kh8 was best. } { [%clk 0:00:03] } 36. Bd4 { [%eval 6.31] [%clk 0:02:01] } 36... Rfe8?? { [%eval #12] } { Checkmate is now unavoidable. Ne8 was best. } { [%clk 0:00:03] } 37. Bxf6 { [%eval #11] [%clk 0:01:58] } 37... Rxe6 { [%eval #11] [%clk 0:00:04] } 38. Bxe6 { [%eval #10] [%clk 0:01:55] } 38... Re8 { [%clk 0:00:00] } 1-0