Event: GMT Biel Chess Festival classic
Site: Biel/Bienne, Switzerland
White: Naiditsch, Arkadij
WhiteTitle: GM
WhiteElo: 2626
Black: Pentala, Harikrishna
BlackTitle: GM
BlackElo: 2719
Result: 1/2-1/2
ECO: B48
Opening: Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack
Variant: Standard
TimeControl: 100 minutes for the first 40 moves + 50 minutes for the next 20 moves + 15 minutes for the rest of the game with an addition of 30 seconds per move starting from move one

1. e4 { [%eval 0.0] [%clk 1:30:56] } 1... c5 { [%eval 0.2] [%clk 1:30:45] } 2. Nf3 { [%eval 0.0] [%clk 1:31:18] } 2... e6 { [%eval 0.47] [%clk 1:31:10] } 3. d4 { [%eval 0.0] [%clk 1:31:38] } 3... cxd4 { [%eval 0.23] [%clk 1:31:34] } 4. Nxd4 { [%eval 0.07] [%clk 1:32:01] } 4... Nc6 { [%eval 0.13] [%clk 1:31:53] } 5. Nc3 { [%eval 0.0] [%clk 1:32:21] } 5... Qc7 { [%eval 0.21] [%clk 1:32:09] } 6. Be3 { [%eval 0.0] [%clk 1:32:20] } 6... a6 { [%eval 0.17] [%clk 1:32:28] } 7. a3 { [%eval 0.25] [%clk 1:31:46] } 7... b5 { [%eval 0.26] [%clk 1:31:52] } 8. Nxc6 { [%eval 0.39] [%clk 1:26:09] } 8... Qxc6 { [%eval 0.55] [%clk 1:31:48] } 9. Qd4 { [%eval 0.4] [%clk 1:26:18] } 9... Bb7 { [%eval 0.52] [%clk 1:26:31] } 10. O-O-O { [%eval 0.15] [%clk 1:25:24] } 10... Rc8 { [%eval 0.25] [%clk 1:24:38] } 11. Bd3 { [%eval 0.13] [%clk 1:20:58] } 11... Qc5 { [%eval 0.44] [%clk 1:13:45] } 12. Rhe1 { [%eval 0.4] [%clk 1:10:34] } 12... Qxd4 { [%eval 0.5] [%clk 1:12:03] } 13. Bxd4 { [%eval 0.36] [%clk 1:10:58] } 13... Ne7 { [%eval 0.44] [%clk 1:12:04] } 14. f4 { [%eval 0.39] [%clk 1:01:17] } 14... b4?! { [%eval 1.05] } { Inaccuracy. h5 was best. } { [%clk 1:00:22] } 15. axb4 { [%eval 1.0] [%clk 0:55:40] } 15... Nc6 { [%eval 0.93] [%clk 0:58:37] } 16. Bf1 { [%eval 0.91] [%clk 0:54:58] } 16... Nxb4 { [%eval 0.95] [%clk 0:57:38] } 17. Kb1 { [%eval 0.82] [%clk 0:49:54] } 17... Rg8 { [%eval 0.92] [%clk 0:48:45] } 18. h4 { [%eval 0.83] [%clk 0:45:16] } 18... h6 { [%eval 1.01] [%clk 0:45:35] } 19. h5 { [%eval 0.85] [%clk 0:40:40] } 19... Be7 { [%eval 0.85] [%clk 0:39:17] } 20. Re3 { [%eval 0.74] [%clk 0:35:12] } 20... Bh4 { [%eval 0.99] [%clk 0:36:59] } 21. Rh3 { [%eval 0.73] [%clk 0:32:27] } 21... Bf6 { [%eval 0.82] [%clk 0:35:38] } 22. Rg3 { [%eval 0.56] [%clk 0:30:02] } 22... Bxd4 { [%eval 0.46] [%clk 0:35:18] } 23. Rxd4 { [%eval 0.68] [%clk 0:30:25] } 23... Nc6 { [%eval 0.67] [%clk 0:35:05] } 24. Ra4 { [%eval 0.42] [%clk 0:23:40] } 24... Ke7 { [%eval 0.57] [%clk 0:27:32] } 25. Bxa6 { [%eval 0.21] [%clk 0:23:43] } 25... Bxa6 { [%eval 0.4] [%clk 0:27:54] } 26. Rxa6 { [%eval 0.36] [%clk 0:24:09] } 26... g6 { [%eval 0.33] [%clk 0:28:15] } 27. hxg6 { [%eval 0.44] [%clk 0:21:16] } 27... Rxg6 { [%eval 0.48] [%clk 0:28:34] } 28. Rxg6 { [%eval 0.13] [%clk 0:21:06] } 28... fxg6 { [%eval 0.4] [%clk 0:28:55] } 29. Kc1 { [%eval 0.43] [%clk 0:16:25] } 29... Rf8 { [%eval 0.32] [%clk 0:18:58] } 30. Ne2 { [%eval 0.3] [%clk 0:16:43] } 30... e5 { [%eval 0.33] [%clk 0:19:11] } 31. g3 { [%eval 0.38] [%clk 0:15:13] } 31... exf4?! { [%eval 0.91] } { Inaccuracy. h5 was best. } { [%clk 0:17:20] } 32. Nxf4 { [%eval 0.88] [%clk 0:14:19] } 32... Kf7 { [%eval 1.1] [%clk 0:17:42] } 33. b4?! { [%eval 0.13] } { Inaccuracy. Kd2 was best. } { [%clk 0:04:44] } 33... Nxb4 { [%eval 0.42] [%clk 0:15:36] } 34. Rxg6 { [%eval 0.0] [%clk 0:02:22] } 34... Rc8 { [%eval 0.0] [%clk 0:15:04] } 35. Rxh6 { [%eval 0.0] [%clk 0:02:05] } 35... Rxc2+ { [%eval 0.03] [%clk 0:14:53] } 36. Kd1 { [%eval 0.09] [%clk 0:02:32] } 36... Rc4 { [%eval 0.01] [%clk 0:14:00] } 37. e5 { [%eval 0.03] [%clk 0:02:21] } 37... Rd4+ { [%eval 0.0] [%clk 0:12:49] } 38. Ke2 { [%eval 0.0] [%clk 0:02:43] } 38... Re4+ { [%eval 0.0] [%clk 0:12:51] } 39. Kf3 { [%eval 0.0] [%clk 0:03:08] } 39... Rxe5 { [%eval 0.0] [%clk 0:12:33] } 40. Rh7+ { [%eval 0.08] [%clk 0:03:34] } 40... Ke8 { [%eval 0.0] [%clk 0:12:13] } 41. Rh8+ { [%eval 0.0] [%clk 0:02:27] } 41... Kf7 { [%eval 0.11] [%clk 0:12:33] } 42. Rh7+ { [%eval 0.05] [%clk 0:02:02] } 42... Ke8 { [%eval 0.13] [%clk 0:12:57] } 43. Rh8+ { [%eval 0.0] [%clk 0:02:07] } 43... Kf7 { [%eval 0.13] [%clk 0:13:22] } 44. Rh7+ { [%eval 0.0] [%clk 0:02:31] } 1/2-1/2