[Event "Weekly Three-check Arena"] [Site "https://lichess.org/BhQMx0vA"] [Date "2024.03.04"] [White "ChessTheory64"] [Black "GaryKatastrow"] [Result "1-0"] [UTCDate "2024.03.04"] [UTCTime "20:14:03"] [WhiteElo "2187"] [BlackElo "1853"] [WhiteRatingDiff "+2"] [BlackRatingDiff "-2"] [WhiteTitle "FM"] [Variant "Three-check"] [TimeControl "180+0"] [ECO "B23"] [Opening "Sicilian Defense: Closed, Traditional"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 c5 2. Nc3 Nc6 { B23 Sicilian Defense: Closed, Traditional } 3. Nf3 e6 4. e5 d5 5. Nb5?! { (1.82 → 0.84) Inaccuracy. exd6 was best. } (5. exd6 Qxd6 6. Bb5 Bd7 7. Ne4 Qc7 8. O-O O-O-O 9. b4 Nf6) 5... Kd7?? { (0.84 → 5.38) Blunder. a6 was best. } (5... a6 6. Nd6+ Bxd6 7. exd6 Qxd6 8. d4 Nf6 9. Be2 cxd4 10. O-O) 6. c4 d4 7. b4?! { (5.36 → 4.16) Inaccuracy. Bd3 was best. } (7. Bd3) 7... Nxb4? { (4.16 → 7.17) Mistake. a6 was best. } (7... a6 8. Nd6) 8. Nbxd4 cxd4?! { (6.17 → 13.92) Inaccuracy. Nc6 was best. } (8... Nc6 9. Nb5) 9. Qa4+ Nc6 10. Bd3 Bc5?! { (12.00 → Mate in 5) Checkmate is now unavoidable. Ke8 was best. } (10... Ke8 11. Qxc6+ bxc6 12. Rb1 Bc5 13. Be4 Kf8 14. Bxc6 h6 15. Bxa8 Ne7 16. Rb8 Kg8 17. O-O) 11. Be4 Ke7 12. Bxc6?! { (Mate in 7 → 48.00) Lost forced checkmate sequence. Ba3 was best. } (12. Ba3 Bd7 13. Nxd4 Ke8 14. Nxe6 fxe6 15. Bg6+ hxg6 16. Qc2 Bxf2+ 17. Kf1 Qb6 18. Qxg6#) 12... bxc6?! { (48.00 → Mate in 3) Checkmate is now unavoidable. Kf8 was best. } (12... Kf8 13. Ba3) 13. Ba3 Qb6 14. Bxc5+ Qxc5 15. O-O Bd7 16. Nxd4 Ke8 17. Qa6 Rd8 18. Nxc6 Qxc6 19. Qa3 Ne7 20. Qxe7# { Game ends by variant rule. } 1-0