The Claustrophobic Sicilian! - Leela C Zero vs Stockfish 15 - B23 Sicilian Defense: Closed

Closed Sicilian is a strategical opening that often leads to a slow white kingside attack. Black usually fights for counterplay on the queenside. Much less played than the main line 2.Nf3, this opening is a good alternative against Sicilian experts.

Most of the time in the Sicilian, White puts his Knight on c3. White may yet play d4, but for the moment the question is yet to be answered. White's second move suggests the possibility of NOT playing d4 (avoiding the exchange), and playing a closed position instead of the slashing, attacking types of position, that are more common to the Sicilian Defence. Leads to 3.g3 g6 4.Bg2 Bg7 5.d3 d6

PGN OF THE GAME:
[Event "CCRL Blitz"]
[Site "CCRL"]
[Date "2022.06.04"]
[Round "642.5.620"]
[White "Lc0 0.29.0 64-bit w753723 RTX2080"]
[Black "Stockfish 15 64-bit 8CPU"]
[Result "0-1"]
[WhiteElo "3672"]
[BlackElo "3746"]
[Variant "Standard"]
[TimeControl "-"]
[ECO "B25"]
[Opening "Sicilian Defense: Closed"]
[Termination "Unknown"]
[Annotator "lichess.org"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 { B25 Sicilian Defense: Closed } e6 7. Nf3 Nge7 8. O-O O-O 9. a4 b6 10. Qe2 Qd7 11. Nd1 Ba6 12. c3 f5 13. Re1 Rae8 14. Qc2 h6 15. Nf2 Bb7 16. Rb1 Rc8 17. Qe2 e5 18. fxe5 Nxe5 19. Nxe5 dxe5 20. a5 bxa5 21. Ra1 Qc6 22. Qc2 Qb6 23. exf5 Bxg2 24. f6 Ba8 25. fxg7 Rf5 26. Bxh6? { (-0.07 → -1.10) Mistake. g4 was best. } (26. g4) 26... c4 27. d4 g5 28. g4 Qc6 29. Re4 Rf7 30. Bxg5 exd4 31. cxd4 Qg6 32. h4 Bxe4 33. Qxe4 Rb8 34. Qxg6 Nxg6 35. h5 Rxb2 36. Nd1 Rb5 37. Bd8? { (-0.58 → -2.01) Mistake. Bc1 was best. } (37. Bc1 Nf4 38. h6 Rb6 39. Ne3 Rxh6 40. Nf5 Rg6 41. Kh2 Ne2 42. Nh6+ Kxg7 43. Nxf7 Kxf7) 37... Nf4 38. h6 Rb3 39. g5?! { (-2.11 → -3.40) Inaccuracy. Nf2 was best. } (39. Nf2 Rb8) 39... Rg3+ 40. Kf2?! { (-2.76 → -3.85) Inaccuracy. Kf1 was best. } (40. Kf1) 40... Nh5+ 41. Ke2 Rd3 42. Ke1 Rxd4 43. Bxa5 Ng3 44. Ne3 Rd3 45. Rc1?! { (-5.96 → -9.05) Inaccuracy. Bd2 was best. } (45. Bd2 Rxe3+ 46. Bxe3 Rf1+ 47. Kd2 Rxa1 48. Kc2 Ra2+ 49. Kb1 Ra3 50. Bd4 Nf5 51. Bf6 Rh3) 45... Rxe3+ 46. Kd2 Rd3+ 47. Kc2 Rf2+ 48. Kb1 Rb3+ 49. Ka1 Ra3+ 50. Kb1 Rxa5 51. Rxc4 Rb5+ 52. Kc1 { Black wins. } 0-1

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