[Event "December 11 Advanced Class simul"] [Site "https://lichess.org/sRANkHLt"] [Date "2023.12.12"] [White "jposthuma"] [Black "kb_2014"] [Result "1-0"] [UTCDate "2023.12.12"] [UTCTime "00:38:25"] [WhiteElo "2804"] [BlackElo "1556"] [WhiteTitle "IM"] [Variant "Standard"] [TimeControl "300+2"] [ECO "A36"] [Opening "English Opening: Symmetrical Variation, Ultra-Symmetrical Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 { A36 English Opening: Symmetrical Variation, Ultra-Symmetrical Variation } 5. a3 Nf6 6. Rb1 a5 7. Nf3?! { (0.24 → -0.36) Inaccuracy. e4 was best. } (7. e4 d6 8. d3 O-O 9. Nge2 Ne8 10. O-O Nc7 11. a4 Na6) 7... e5?! { (-0.36 → 0.65) Inaccuracy. d5 was best. } (7... d5 8. cxd5 Nxd5 9. O-O O-O 10. Re1 Nc7 11. d3 Rb8 12. Bf4) 8. O-O O-O 9. Ne1 d6 10. Nc2 Be6 11. Ne3 Re8 12. d3 Nd4 13. Ned5 Bxd5 14. Nxd5 Nxd5 15. Bxd5 Qf6?! { (0.94 → 1.80) Inaccuracy. Nc6 was best. } (15... Nc6 16. e3 Qd7 17. Qf3 Rf8 18. Bd2 Ra7 19. b4 axb4 20. axb4 Ne7 21. bxc5 dxc5 22. e4) 16. Bxb7 Rab8 17. Bd5 Rbd8? { (1.98 → 3.44) Mistake. Qf5 was best. } (17... Qf5 18. Bd2 Nb3 19. Bc3 Qd7 20. e3 a4 21. Kg2 Kh8 22. g4 Rf8 23. Kh1 f5 24. gxf5) 18. b4?! { (3.44 → 2.68) Inaccuracy. e3 was best. } (18. e3 Ne6 19. Bd2 Ra8 20. Bxa8 Rxa8 21. Kg2 Qd8 22. Qf3 Rb8 23. b4 Ng5 24. Qd5 e4) 18... axb4 19. axb4 cxb4 20. Rxb4 Rb8 21. Ba3?! { (2.81 → 2.04) Inaccuracy. Ra4 was best. } (21. Ra4 Qe7 22. Kg2 Qd7 23. Ra6 h5 24. Ba3 Bf8 25. e3 Nf5 26. Qf3 Qc8 27. Ra7 Re7) 21... Rxb4 22. Bxb4 Rb8 23. Bc3 Rb3?? { (2.25 → 5.86) Blunder. h5 was best. } (23... h5 24. Bxd4) 24. Bxd4 exd4 25. Qxb3 Qf5? { (7.17 → Mate in 12) Checkmate is now unavoidable. Bf8 was best. } (25... Bf8 26. Qb8 Qe7 27. Rb1 Kg7 28. Rb7 Qxb7 29. Qxb7 Be7 30. Qa8 g5 31. Qe8 Bd8 32. Qxf7+) 26. Qb8+ Bf8 27. Ra1 Qd7 28. Ra8 Qe7 29. Ra7 Qf6 30. Rxf7?? { (Mate in 6 → 6.24) Lost forced checkmate sequence. Qe8 was best. } (30. Qe8 h5 31. Rxf7 Qg7 32. Rxg7+ Kxg7 33. Qf7+ Kh6 34. Be4 g5 35. Qxf8#) 30... Qh8?? { (6.24 → Mate in 1) Checkmate is now unavoidable. Qxf7 was best. } (30... Qxf7 31. Bxf7+ Kxf7 32. Qxf8+ Kxf8 33. Kg2 Kg7 34. Kf3 Kf7 35. Ke4 Ke7 36. Kxd4 Kd7 37. f4) 31. Qxf8# { White wins by checkmate. } 1-0