The TCEC Cup 9 is a knockout format played in TCEC, including all qualifying participants. It will be a knockout championship with the 32 participants divided into brackets. For an engine to win the TCEC Cup gold medal it must win a total of five matches. The two losing semifinalists will play a match for 3rd and 4th place (`small final’). No bookless games will be played in the TCEC Cup.
c. All games take place in pairs in which both engines each play each side of every book exit. Engines will play both sides of each position selected. Openings chosen will roughly approximate human games in terms of their frequency. A new opening should thus occur every other game, then the reverse game is played, so two games in a row from the same starting book position. Because each engine will thus play both sides of every opening, fairness is guaranteed.
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PGN OF THE GAME:
[Event “TCEC Cup 9 Final”]
[Site “https://lichess.org/6zxIMXfw“]
[Date “2021.10.27”]
[Round “1.2”]
[White “Stockfish dev15_20211015”]
[Black “LCZero 0.28-dev+_609958”]
[Result “1-0”]
[WhiteElo “3645”]
[BlackElo “3622”]
[Variant “Standard”]
[TimeControl “1800+5”]
[ECO “E69”]
[Opening “King’s Indian Defense: Fianchetto Variation, Classical Main Line”]
[Termination “Normal”]
[Annotator “lichess.org”]
1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 c6 9. h3 { E69 King’s Indian Defense: Fianchetto Variation, Classical Main Line } Qb6 10. c5 dxc5 11. dxe5 Ne8 12. e6 fxe6 13. Ng5 Ne5 14. f4 Nf7 15. Nxf7 Bd4+ 16. Kh2 Rxf7 17. e5 Qc7 18. Ne4 b6 19. Ng5 Rf8 20. Qc2 Qe7 21. Bxc6 Rb8 22. Rd1 Nc7 23. Qg2 Rd8 24. Bf3 Ba6 25. a4 Bc4 26. h4 Rf8 27. Rxd4 cxd4 28. b3 Bd5 29. Ba3 Qd7 30. Bxf8 Rxf8 31. h5 gxh5 32. Rd1 Bxf3 33. Qxf3 h4 34. gxh4 Kh8 35. Rd2 b5 36. a5 a6 37. Rd1 Qe7 38. Rxd4 Nd5 39. Kg2 b4 40. Nxe6 Qxe6 41. Rxd5 Qg6+ 42. Kh1 Qf5 43. Rd4 Qg6 44. h5 Qf5 45. Kh2 Qc2+ 46. Qg2 Qf5 47. Qe2 Qe6 48. Qf3 Qf5 49. Rxb4 Qc2+ 50. Kh3 Qc8+ 51. Kh4 Qc2 52. Rc4 Qh2+ 53. Kg4 Rg8+ 54. Kf5 Rf8+ 55. Ke6?! { (4.57 → 3.63) Inaccuracy. Ke4 was best. } (55. Ke4 Qh4 56. e6 Qe1+ 57. Qe3 Qh1+ 58. Kd3 Qd1+ 59. Kc3 Qa1+ 60. Kc2 Qa2+ 61. Kd1 Rd8+) 55… Qh4 56. Rc7 Re8+ 57. Kf7 Qd8 58. Qb7 Rf8+ 59. Ke6 Qd3 60. Rd7 Qf5+ 61. Kd6 Re8 62. b4 h6 63. Kc7 Qxf4 64. Qd5 Qxb4 65. Rh7+ Kxh7 66. Qf7+ Kh8 67. Qxe8+ Kg7 68. Qg6+ Kh8 69. Qd6 Qc3+ 70. Kd7 Qh3+ 71. Ke7 Qc3 72. Qxh6+ Kg8 73. Qg5+ Kh7 74. Kf6 Qc6+ 75. e6 Qc3+ 76. Qe5 Qd2 77. Qe4+ Kh8 78. Kg6 Qg5+ 79. Kxg5 Kg7 80. e7 Kf7 81. e8=R Kg7 82. Qg6# { White wins by checkmate. } 1-0
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