Event: Las Vegas National Open 2023
Date: 2023-06-17
White: Alexander Katz
WhiteTitle: IM
Black: Isaac Wang
Result: 1-0
ECO: B90
Opening: Sicilian Defense: Najdorf Variation, English Attack
Variant: Standard
TimeControl: G/90 +30 sec inc

1. e4 { [%eval 0.36] [%clk 1:30:59] } 1... c5 { [%eval 0.32] [%clk 1:30:49] } 2. Nf3 { [%eval 0.0] [%clk 1:31:22] } 2... d6 { [%eval 0.0] [%clk 1:31:15] } 3. d4 { [%eval 0.25] [%clk 1:31:48] } 3... cxd4 { [%eval 0.13] [%clk 1:31:40] } 4. Nxd4 { [%eval 0.27] [%clk 1:32:14] } 4... Nf6 { [%eval 0.3] [%clk 1:32:03] } 5. Nc3 { [%eval 0.21] [%clk 1:32:39] } 5... a6 { [%eval 0.39] [%clk 1:32:19] } 6. Be3 { [%eval 0.12] [%clk 1:33:04] } 6... e5 { [%eval 0.31] [%clk 1:32:40] } 7. Nb3 { [%eval 0.25] [%clk 1:33:30] } 7... Be6 { [%eval 0.11] [%clk 1:33:06] } 8. f3 { [%eval 0.43] [%clk 1:33:55] } 8... h5 { [%eval 0.3] [%clk 1:33:33] } 9. Qd2 { [%eval 0.36] [%clk 1:34:01] } 9... Nbd7 { [%eval 0.35] [%clk 1:33:53] } 10. Nd5 { [%eval 0.29] [%clk 1:34:25] } 10... Bxd5 { [%eval 0.39] [%clk 1:33:57] } 11. exd5 { [%eval 0.49] [%clk 1:34:49] } 11... g6 { [%eval 0.37] [%clk 1:34:19] } 12. O-O-O { [%eval 0.26] [%clk 1:35:12] } 12... Nb6 { [%eval 0.26] [%clk 1:33:49] } 13. Kb1 { [%eval 0.27] [%clk 1:35:30] } 13... Nbxd5 { [%eval 0.18] [%clk 1:33:29] } 14. Bg5 { [%eval 0.4] [%clk 1:34:45] } 14... Be7 { [%eval 0.2] [%clk 1:32:42] } 15. c4 { [%eval 0.11] [%clk 1:13:03] } 15... Nb6 { [%eval 0.43] [%clk 1:31:25] } 16. Bh6?! { [%eval -0.33] } { Inaccuracy. Na5 was best. } { [%clk 1:10:12] } 16... Rc8 { [%eval -0.07] [%clk 1:23:52] } 17. Bg7 { [%eval 0.02] [%clk 1:08:34] } 17... Rg8 { [%eval -0.02] [%clk 1:18:51] } 18. Bxf6 { [%eval -0.05] [%clk 1:06:15] } 18... Bxf6 { [%eval -0.12] [%clk 1:19:15] } 19. Qxd6 { [%eval -0.27] [%clk 1:06:28] } 19... Nxc4 { [%eval -0.22] [%clk 1:09:26] } 20. Bxc4 { [%eval -0.38] [%clk 1:04:53] } 20... Rxc4 { [%eval -0.44] [%clk 1:09:49] } 21. Na5 { [%eval -0.39] [%clk 1:03:43] } 21... Qxd6?! { [%eval 0.52] } { Inaccuracy. Rc7 was best. } { [%clk 0:57:30] } 22. Rxd6 { [%eval 0.53] [%clk 1:03:06] } 22... Rf4 { [%eval 0.83] [%clk 0:52:23] } 23. Nxb7 { [%eval 0.97] [%clk 1:00:01] } 23... Kf8 { [%eval 0.98] [%clk 0:41:12] } 24. Rxa6 { [%eval 0.98] [%clk 0:56:23] } 24... e4?! { [%eval 1.73] } { Inaccuracy. Kg7 was best. } { [%clk 0:38:45] } 25. Ra4 { [%eval 1.83] [%clk 0:54:49] } 25... Kg7 { [%eval 2.08] [%clk 0:35:37] } 26. Nc5 { [%eval 2.0] [%clk 0:52:06] } 26... Rb8 { [%eval 2.49] [%clk 0:34:31] } 27. b3 { [%eval 2.4] [%clk 0:51:13] } 27... Rf5 { [%eval 3.03] [%clk 0:33:15] } 28. Nxe4 { [%eval 3.12] [%clk 0:49:46] } 28... Rd5?! { [%eval 3.99] } { Inaccuracy. Be5 was best. } { [%clk 0:32:46] } 29. Nxf6 { [%eval 4.15] [%clk 0:47:54] } 29... Kxf6 { [%eval 4.02] [%clk 0:33:14] } 30. Rc1 { [%eval 4.14] [%clk 0:47:53] } 30... Rd2 { [%eval 4.26] [%clk 0:31:44] } 31. Rc2 { [%eval 4.24] [%clk 0:48:04] } 31... Rd1+ { [%eval 4.51] [%clk 0:32:09] } 32. Kb2 { [%eval 4.6] [%clk 0:48:25] } 32... Rh1 { [%eval 4.77] [%clk 0:32:31] } 33. h3 { [%eval 4.74] [%clk 0:47:15] } 33... Rd8 { [%eval 4.89] [%clk 0:32:49] } 34. Rac4 { [%eval 5.02] [%clk 0:46:33] } 34... Rdd1 { [%eval 5.68] [%clk 0:33:02] } 35. Rc1 { [%eval 5.81] [%clk 0:45:57] } 35... Rdg1 { [%eval 6.0] [%clk 0:32:25] } 36. Rxg1 { [%eval 6.03] [%clk 0:45:53] } 36... Rxg1 { [%eval 5.94] [%clk 0:32:53] } 37. Rc2 { [%eval 5.96] [%clk 0:46:13] } 1-0