[Event "Etud Alena Valerievna simul"] [Site "https://lichess.org/2V9JxEO7"] [Date "2022.02.12"] [White "Alesha_2008"] [Black "Alenzer"] [Result "0-1"] [UTCDate "2022.02.12"] [UTCTime "09:01:43"] [WhiteElo "1304"] [BlackElo "1888"] [BlackTitle "WFM"] [Variant "Standard"] [TimeControl "900+30"] [ECO "B30"] [Opening "Sicilian Defense: Old Sicilian"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 c5 2. Nf3 Nc6 { B30 Sicilian Defense: Old Sicilian } 3. Bc4 e6 4. Nc3 a6 5. a4?! { (0.40 → -0.18) Inaccuracy. d4 was best. } (5. d4 cxd4 6. Nxd4 Qc7 7. Nxc6 Nf6 8. Qe2 Qxc6 9. Nd5 Nxd5) 5... Qc7 6. d4 cxd4 7. Nxd4 Nf6 8. Nxc6 bxc6 9. O-O d5 10. exd5?! { (-0.48 → -1.09) Inaccuracy. Bd3 was best. } (10. Bd3 Bd6) 10... cxd5 11. Bxd5?? { (-0.87 → -4.79) Blunder. Bd3 was best. } (11. Bd3) 11... Nxd5 12. Nxd5 exd5 13. Re1+ Be7 14. b3?! { (-4.96 → -6.61) Inaccuracy. Qxd5 was best. } (14. Qxd5) 14... Be6 15. Ba3 Bxa3 16. Qxd5 O-O 17. Rxe6 fxe6 18. Qxe6+ Qf7 19. Qxf7+ Rxf7 20. Rxa3 Rc8 21. c4 Re7 22. Kf1 Rd8 23. g3 Rd2 24. c5 Ree2 25. c6 Rxf2+ 26. Ke1? { (-8.75 → Mate in 6) Checkmate is now unavoidable. Kg1 was best. } (26. Kg1 Rg2+) 26... Rfe2+? { (Mate in 6 → -8.53) Lost forced checkmate sequence. Rde2+ was best. } (26... Rde2+ 27. Kd1 Rb2 28. Kc1 Rfc2+ 29. Kd1 Rg2 30. Kc1 Rbf2 31. Kd1 Rg1#) 27. Kf1 Rxh2 28. Ra1? { (-9.25 → Mate in 1) Checkmate is now unavoidable. Kg1 was best. } (28. Kg1 Rdg2+ 29. Kf1 Rc2 30. Kg1 Rhg2+ 31. Kh1 Rxg3 32. c7 Rxc7 33. Kh2 Rd3 34. Ra2 Rxb3) 28... Rh1# { Black wins by checkmate. } 0-1