[Event "TCEC Season 26 - Grob Mating Bonus"] [Site "https://tcec-chess.com"] [Date "2024.04.02"] [Round "2.6"] [White "Stockfish dev-20240330-c964942d"] [Black "LCZero 0.31-dag-5c1051f-BT4-6077500"] [Result "0-1"] [WhiteElo "?"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "A00"] [Opening "Grob Opening"] [Termination "Unknown"] [Annotator "lichess.org"] 1. g4? { (0.15 → -1.46) Mistake. e4 was best. } { A00 Grob Opening } (1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6) 1... d5 2. g5 e5 3. d4 exd4 4. Bg2 Bc5 5. Nf3 Nc6 6. Nbd2 Nge7 7. Nb3 Bb6 8. a4 Na5 9. Nbxd4 c5 10. Nb5 O-O 11. O-O a6 12. Nc3 Re8 13. Nh4 d4 14. Ne4 Ng6 15. Nxg6 hxg6 16. e3 Bf5 17. Ng3 Be6 18. exd4 cxd4 19. Bf4 Nc6 20. Re1 Qd7 21. Qd2 Rad8 22. Ne4 Bh3 23. Bg3 Bxg2 24. Kxg2 Qd5 25. f3 Ba5 26. c3 Qb3 27. Qd1 Qxb2+ 28. Re2 Qb6 29. Bf2 Ne7 30. Rb1 Qc6 31. cxd4 Nd5 32. Bg3 Bb4 33. Rc1 Qd7 34. h4 b5 35. axb5 Qxb5 36. Kh2 a5 37. Rb2 Re6 38. Qb3 Rc6 39. Rc5 Qb7 40. Rxa5 Rb6 41. Rxd5 Rxd5 42. Qc4 Rdb5 43. Kg2 Bf8 44. Rxb5 Rxb5 45. Be1 Qd5 46. Qxd5 Rxd5 47. Bc3 Rb5 48. Bd2 Be7 49. Kf2 f6 50. Bf4 Rb4 51. Ke3 Kf7 52. Nd6+ Ke6 53. Ne8 Rb7 54. Kd3 Bd8 55. Nd6?! { (-2.70 → -3.46) Inaccuracy. Kc4 was best. } (55. Kc4 Ra7 56. Bg3 Ke7 57. Nd6 Ra3 58. Ne4 Rxf3 59. Be1 Re3 60. Bb4+ Ke8 61. Kd5 Be7) 55... Rb3+ 56. Ke2 Bb6 57. Ne4 Bxd4 58. Bc1 Kd5 59. Bf4 f5 60. Nd2 Rb4 61. Nf1 Be5 62. Bd2 Rxh4 63. Ne3+ Kc5 64. Be1 Rh2+ 65. Kf1 Kd4 66. Bf2 Kd3 67. Nd5 Bd6 68. Bb6 f4 69. Bd8 Kd4 70. Kg1 Rc2 71. Nb6 Ke3 72. Kf1? { (-9.88 → Mate in 14) Checkmate is now unavoidable. Nd7 was best. } (72. Nd7 Kxf3 73. Be7 Kg3 74. Kf1 Rc1+ 75. Ke2 f3+ 76. Ke3 Bf4+ 77. Kd4 f2 78. Nc5 f1=Q) 72... Kxf3 73. Ke1 Ke4 74. Na4? { (-8.88 → Mate in 10) Checkmate is now unavoidable. Kd1 was best. } (74. Kd1 Kd3) 74... f3 75. Bb6 Kd3 76. Nc5+ Bxc5 77. Bxc5 Rxc5 78. Kf2 Ke4 79. Kg3 Rxg5+ 80. Kf2 Kf4 81. Ke1 Ke3 82. Kd1 Rc5 83. Ke1 Rc1# { Black wins. } 0-1