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CatGPT b2a1b3db vs Serendipity 072cb43e

2026.09.08 · game 4
White to move
PGN
[Event "TCEC Season 30 - Category 3+4 Playoff"]
[Site "tcec-chess.com"]
[Date "2026.09.08"]
[Round "18.1"]
[White "CatGPT b2a1b3db"]
[Black "Serendipity 072cb43e"]
[Result "1-0"]
[WhiteElo "3695"]
[WhiteTitle "BOT"]
[BlackElo "3561"]
[BlackTitle "BOT"]
[TimeControl "1800+3"]
[Termination "White mates"]
[Variant "Standard"]
[ECO "B06"]
[Opening "Modern Defense: Standard Defense"]
[UTCDate "2026.09.08"]
[UTCTime "08:50:46"]
[BroadcastName "TCEC S30: Playoff & Swiss 10 | Playoff | Cat 3+4"]
[BroadcastURL "https://lichess.org/broadcast/tcec-s30-playoff-swiss-10-playoff-cat-34/round-18/ZznfXU0u"]
[GameURL "https://lichess.org/broadcast/tcec-s30-playoff-swiss-10-playoff-cat-34/round-18/ZznfXU0u/sAZVjPeo"]

1. e4 { [%eval 0.18] [%clk 0:30:00] } 1... g6 { [%eval 0.55] [%clk 0:30:00] } 2. d4 { [%eval 0.48] [%clk 0:30:00] } 2... Bg7 { [%eval 0.48] [%clk 0:30:00] } 3. Nc3 { [%eval 0.51] [%clk 0:30:00] } 3... d6 { [%eval 0.52] [%clk 0:30:00] } 4. Be3 { [%eval 0.46] [%clk 0:30:00] } 4... a6 { [%eval 0.5] [%clk 0:30:00] } 5. Qd2 { [%eval 0.51] [%clk 0:30:00] } 5... Nd7 { [%eval 0.72] [%clk 0:30:00] } 6. h4 { [%eval 0.6] [%clk 0:30:00] } 6... h5 { [%eval 0.56] [%clk 0:30:00] } 7. Nh3 { [%eval 0.62] [%clk 0:30:00] } 7... b5 { [%eval 0.72] [%clk 0:30:00] } 8. Ng5 { [%eval 0.85] [%clk 0:30:00] } 8... e6 { [%eval 1.13] [%clk 0:30:00] } 9. a4 { [%eval 1.02] [%clk 0:28:00] } 9... bxa4 { [%eval 1.1] [%clk 0:28:39] } 10. d5 { [%eval 1.15] [%clk 0:26:40] } 10... Ne5 { [%eval 1.17] [%clk 0:27:24] } 11. Rxa4 { [%eval 1.17] [%clk 0:26:43] } 11... Nf6 { [%eval 1.12] [%clk 0:26:03] } 12. Bb5+ { [%eval 1.23] [%clk 0:22:07] } 12... Bd7 { [%eval 1.17] [%clk 0:24:39] } 13. Bxd7+ { [%eval 1.12] [%clk 0:22:10] } 13... Qxd7 { [%eval 1.14] [%clk 0:23:22] } 14. dxe6 { [%eval 1.12] [%clk 0:22:13] } 14... fxe6 { [%eval 1.22] [%clk 0:22:15] } 15. Bf4 { [%eval 1.13] [%clk 0:22:16] } 15... Nfg4 { [%eval 1.11] [%clk 0:21:18] } 16. b3 { [%eval 1.11] [%clk 0:22:19] } 16... Nf7 { [%eval 1.21] [%clk 0:20:04] } 17. Ne2 { [%eval 1.2] [%clk 0:18:02] } 17... O-O { [%eval 1.17] [%clk 0:19:11] } 18. O-O { [%eval 1.16] [%clk 0:18:05] } 18... Bf6 { [%eval 1.18] [%clk 0:18:13] } 19. f3 { [%eval 1.08] [%clk 0:13:01] } 19... Nge5 { [%eval 1.11] [%clk 0:15:13] } 20. Kh1 { [%eval 1.13] [%clk 0:12:06] } 20... Bg7 { [%eval 1.12] [%clk 0:12:38] } 21. Nxf7 { [%eval 1.05] [%clk 0:09:25] } 21... Qxf7 { [%eval 0.96] [%clk 0:12:03] } 22. Bg5 { [%eval 1.01] [%clk 0:08:58] } 22... Nc6 { [%eval 1.07] [%clk 0:11:34] } 23. Nf4 { [%eval 1.15] [%clk 0:06:27] } 23... a5 { [%eval 0.9] [%clk 0:10:51] } 24. Nh3 { [%eval 0.96] [%clk 0:05:52] } 24... Rfb8 { [%eval 0.99] [%clk 0:10:14] } 25. Bh6 { [%eval 1.19] [%clk 0:05:30] } 25... Bf6 { [%eval 1.22] [%clk 0:09:40] } 26. Ng5 { [%eval 1.07] [%clk 0:05:33] } 26... Qe7 { [%eval 1.38] [%clk 0:09:15] } 27. f4 { [%eval 1.06] [%clk 0:04:57] } 27... Rb4 { [%eval 1.1] [%clk 0:08:44] } 28. Nf3 { [%eval 1.25] [%clk 0:05:00] } 28... Bh8? { [%eval 2.53] } { Mistake. Qe8 was best. } { [%clk 0:08:12] } 29. f5 { [%eval 2.39] [%clk 0:04:38] } 29... Rxa4 { [%eval 1.86] [%clk 0:06:50] } 30. bxa4 { [%eval 1.25] [%clk 0:04:41] } 30... gxf5?? { [%eval 3.3] } { Blunder. Ne5 was best. } { [%clk 0:06:30] } 31. exf5 { [%eval 3.04] [%clk 0:04:17] } 31... Ne5 { [%eval 2.99] [%clk 0:06:14] } 32. Bg5 { [%eval 3.13] [%clk 0:03:55] } 32... Qf7 { [%eval 2.78] [%clk 0:05:55] } 33. Nxe5 { [%eval 2.96] [%clk 0:03:58] } 33... Bxe5 { [%eval 2.93] [%clk 0:05:40] } 34. f6 { [%eval 2.96] [%clk 0:03:49] } 34... d5 { [%eval 3.41] [%clk 0:05:22] } 35. Qe1 { [%eval 3.29] [%clk 0:03:31] } 35... Bd6 { [%eval 3.56] [%clk 0:05:09] } 36. Bf4 { [%eval 3.2] [%clk 0:03:21] } 36... Bb4?! { [%eval 4.17] } { Inaccuracy. Bf8 was best. } { [%clk 0:04:57] } 37. c3 { [%eval 3.62] [%clk 0:03:06] } 37... Bd6?! { [%eval 4.62] } { Inaccuracy. Ba3 was best. } { [%clk 0:04:29] } 38. Bxd6 { [%eval 5.43] [%clk 0:02:53] } 38... cxd6 { [%eval 5.28] [%clk 0:04:14] } 39. Qg3+ { [%eval 5.07] [%clk 0:02:43] } 39... Kh7 { [%eval 5.16] [%clk 0:04:03] } 40. Qxd6 { [%eval 4.93] [%clk 0:02:36] } 40... Rg8 { [%eval 4.53] [%clk 0:03:51] } 41. Qe5 { [%eval 4.73] [%clk 0:02:27] } 41... Qg6 { [%eval 5.0] [%clk 0:03:08] } 42. Rf2 { [%eval 4.99] [%clk 0:02:18] } 42... Qb1+ { [%eval 4.75] [%clk 0:02:54] } 43. Kh2 { [%eval 4.85] [%clk 0:02:10] } 43... Qb8 { [%eval 4.99] [%clk 0:02:32] } 44. Re2 { [%eval 4.77] [%clk 0:02:13] } 44... Qxe5+ { [%eval 4.47] [%clk 0:02:27] } 45. Rxe5 { [%eval 4.45] [%clk 0:02:05] } 45... Kg6 { [%eval 4.63] [%clk 0:02:21] } 46. Rxe6 { [%eval 4.78] [%clk 0:01:58] } 46... Rc8 { [%eval 4.56] [%clk 0:02:16] } 47. Re5 { [%eval 4.47] [%clk 0:01:53] } 47... Rc5 { [%eval 4.53] [%clk 0:02:01] } 48. g3 { [%eval 4.85] [%clk 0:01:46] } 48... Kxf6 { [%eval 4.67] [%clk 0:01:55] } 49. Rxh5 { [%eval 4.41] [%clk 0:01:40] } 49... Ke6 { [%eval 4.29] [%clk 0:01:39] } 50. Rh8 { [%eval 4.42] [%clk 0:01:43] } 50... Rxc3 { [%eval 4.32] [%clk 0:01:36] } 51. h5 { [%eval 4.35] [%clk 0:01:36] } 51... Kf5 { [%eval 4.44] [%clk 0:01:30] } 52. Rd8 { [%eval 4.19] [%clk 0:01:30] } 52... Ke4 { [%eval 4.29] [%clk 0:01:25] } 53. g4 { [%eval 5.18] [%clk 0:01:25] } 53... Kf4 { [%eval 5.17] [%clk 0:01:22] } 54. Rxd5 { [%eval 5.25] [%clk 0:01:21] } 54... Kxg4 { [%eval 4.68] [%clk 0:01:19] } 55. Rxa5 { [%eval 4.31] [%clk 0:01:24] } 55... Rc2+ { [%eval 5.27] [%clk 0:01:16] } 56. Kg1 { [%eval 5.39] [%clk 0:01:27] } 56... Kg3 { [%eval 4.94] [%clk 0:01:14] } 57. Kf1 { [%eval 4.47] [%clk 0:01:29] } 57... Rh2 { [%eval 4.47] [%clk 0:01:11] } 58. h6 { [%eval 5.23] [%clk 0:01:32] } 58... Rxh6 { [%eval 5.0] [%clk 0:01:09] } 59. Ke2 { [%eval 4.88] [%clk 0:01:35] } 59... Rh2+ { [%eval 4.59] [%clk 0:01:01] } 60. Ke3 { [%eval 4.61] [%clk 0:01:38] } 60... Ra2 { [%eval 5.29] [%clk 0:00:58] } 61. Ra6 { [%eval 5.12] [%clk 0:01:41] } 61... Ra1 { [%eval 5.17] [%clk 0:00:48] } 62. a5 { [%eval 4.86] [%clk 0:01:44] } 62... Kg4 { [%eval 4.45] [%clk 0:00:46] } 63. Ra8 { [%eval 5.53] [%clk 0:01:47] } 63... Kg5 { [%eval 5.99] [%clk 0:00:34] } 64. a6 { [%eval 5.9] [%clk 0:01:50] } 64... Kf6 { [%eval 5.7] [%clk 0:00:33] } 65. Kd4 { [%eval 5.08] [%clk 0:01:53] } 65... Ra5?! { [%eval 6.6] } { Inaccuracy. Ra4+ was best. } { [%clk 0:00:28] } 66. Kc4 { [%eval 6.59] [%clk 0:01:56] } 66... Ra1 { [%eval 5.93] [%clk 0:00:27] } 67. Kc5 { [%eval 5.61] [%clk 0:01:59] } 67... Ra3 { [%eval 4.79] [%clk 0:00:27] } 68. Kb6 { [%eval 6.47] [%clk 0:02:02] } 68... Rb3+ { [%eval 6.49] [%clk 0:00:27] } 69. Ka7 { [%eval 5.04] [%clk 0:02:05] } 69... Ke6?! { [%eval 6.7] } { Inaccuracy. Ke5 was best. } { [%clk 0:00:26] } 70. Rb8 { [%eval 5.56] [%clk 0:02:08] } 70... Rc3 { [%eval 8.35] [%clk 0:00:20] } 71. Kb7 { [%eval 8.08] [%clk 0:02:11] } 71... Rb3+ { [%eval 7.03] [%clk 0:00:20] } 72. Ka8 { [%eval 6.66] [%clk 0:02:14] } 72... Rc3 { [%eval 4.0] [%clk 0:00:18] } 73. a7 { [%eval 3.93] [%clk 0:02:17] } 73... Kd6 { [%eval 4.83] [%clk 0:00:18] } 74. Kb7 { [%eval 4.62] [%clk 0:02:20] } 74... Rb3+ { [%eval 3.69] [%clk 0:00:18] } 75. Kc8 { [%eval 2.99] [%clk 0:02:23] } 75... Rc3+ { [%eval 4.82] [%clk 0:00:18] } 76. Kd8 { [%eval 4.06] [%clk 0:02:26] } 76... Rh3 { [%eval 4.26] [%clk 0:00:18] } 77. Rb6+ { [%eval 3.36] [%clk 0:02:29] } 77... Kc5 { [%eval 2.52] [%clk 0:00:18] } 78. Rc6+ { [%eval 4.72] [%clk 0:02:32] } 78... Kxc6 { [%eval 4.71] [%clk 0:00:18] } 79. a8=Q+ { [%eval 3.51] [%clk 0:02:35] } 79... Kd6 { [%eval 2.76] [%clk 0:00:18] } 80. Qa6+ { [%eval 2.35] [%clk 0:02:38] } 80... Kd5 { [%eval 2.92] [%clk 0:00:18] } 81. Qe2 { [%eval 2.73] [%clk 0:02:41] } 81... Rg3? { [%eval 4.94] } { Mistake. Rh8+ was best. } { [%clk 0:00:18] } 82. Qh5+ { [%eval 4.24] [%clk 0:02:44] } 82... Ke4 { [%eval 3.57] [%clk 0:00:19] } 83. Qh4+ { [%eval 5.18] [%clk 0:02:47] } 83... Kf3 { [%eval 4.99] [%clk 0:00:11] } 84. Kd7 { [%eval 4.99] [%clk 0:02:50] } 84... Rg2 { [%eval 4.98] [%clk 0:00:11] } 85. Qh1 { [%eval 3.38] [%clk 0:02:53] } 85... Kg3?? { [%eval 74.28] } { Blunder. Kf2 was best. } { [%clk 0:00:10] } 86. Ke6 { [%eval 53.89] [%clk 0:02:56] } 86... Rf2 { [%eval 22.65] [%clk 0:00:06] } 87. Ke5 { [%eval 6.71] [%clk 0:02:59] } 87... Kg4 { [%eval 9.38] [%clk 0:00:05] } 88. Qe4+ { [%eval #22] [%clk 0:03:02] } 88... Kh3 { [%eval #22] [%clk 0:00:04] } 89. Kd4 { [%eval #21] [%clk 0:03:05] } 89... Kg3 { [%eval #21] [%clk 0:00:04] } 90. Ke3 { [%eval #20] [%clk 0:03:08] } 90... Rf1 { [%eval #19] [%clk 0:00:04] } 91. Qd5 { [%eval #18] [%clk 0:03:11] } 91... Re1+ { [%eval #18] [%clk 0:00:04] } 92. Kd2 { [%eval #17] [%clk 0:03:14] } 92... Rf1 { [%eval #17] [%clk 0:00:04] } 93. Qg5+ { [%eval #17] [%clk 0:03:17] } 93... Kf2 { [%eval #13] [%clk 0:00:04] } 94. Qe3+ { [%eval #12] [%clk 0:03:20] } 94... Kg2 { [%eval #12] [%clk 0:00:05] } 95. Ke2 { [%eval #12] [%clk 0:03:23] } 95... Rg1 { [%eval #10] [%clk 0:00:04] } 96. Qe5 { [%eval #9] [%clk 0:03:26] } 96... Rb1 { [%eval #9] [%clk 0:00:05] } 97. Qe4+ { [%eval #8] [%clk 0:03:29] } 97... Kg3 { [%eval #8] [%clk 0:00:05] } 98. Qxb1 { [%eval #7] [%clk 0:03:32] } 98... Kf4 { [%eval #7] [%clk 0:00:04] } 99. Qb5 { [%eval #6] [%clk 0:03:35] } 99... Ke4 { [%eval #6] [%clk 0:00:05] } 100. Kf2 { [%eval #5] [%clk 0:03:38] } 100... Kd4 { [%eval #5] [%clk 0:00:04] } 101. Kf3 { [%eval #4] [%clk 0:03:41] } 101... Kc3 { [%eval #4] [%clk 0:00:04] } 102. Ke3 { [%eval #3] [%clk 0:03:44] } 102... Kc2 { [%eval #3] [%clk 0:00:07] } 103. Qb4 { [%eval #2] [%clk 0:03:47] } 103... Kc1 { [%eval #2] [%clk 0:00:10] } 104. Kd3 { [%eval #1] [%clk 0:03:50] } 104... Kd1 { [%eval #1] [%clk 0:00:13] } 105. Qb1# { [%clk 0:03:53] } 1-0
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