[Event "Alekhine"] [Site "https://lichess.org/7y9lvjbP"] [Date "2023.05.06"] [White "SemenDerevnin"] [Black "Sofieka-2014_2014"] [Result "0-1"] [UTCDate "2023.05.06"] [UTCTime "06:09:08"] [WhiteElo "734"] [BlackElo "800"] [WhiteRatingDiff "-110"] [BlackRatingDiff "+183"] [Variant "Standard"] [TimeControl "420+0"] [ECO "C49"] [Opening "Four Knights Game: Spanish Variation, Double Spanish"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 { C49 Four Knights Game: Spanish Variation, Double Spanish } 5. Bxc6 bxc6 6. Nxe5 Nxe4?? { (0.00 → 4.24) Blunder. Qe7 was best. } (6... Qe7 7. Ng4 Nxe4 8. O-O d5 9. Re1 O-O 10. d3 Nxc3 11. bxc3) 7. Qe2?? { (4.24 → 0.73) Blunder. Nxe4 was best. } (7. Nxe4 Qe7 8. f4 f6 9. c3 Ba5 10. Qh5+ g6 11. Qe2 fxe5) 7... Nxc3 8. Nxc6+?? { (0.51 → -6.37) Blunder. dxc3 was best. } (8. dxc3 Be7) 8... Kf8?? { (-6.37 → 1.03) Blunder. Nxe2 was best. } (8... Nxe2 9. Nxd8 Nxc1 10. Rxc1 O-O 11. Nxf7 Rxf7 12. O-O Bb7 13. Rfe1 d5 14. Re3 Bd6 15. Rce1) 9. dxc3 Qf6?? { (0.62 → 5.33) Blunder. Bxc3+ was best. } (9... Bxc3+ 10. bxc3) 10. cxb4?? { (5.33 → 1.92) Blunder. Nxb4 was best. } (10. Nxb4 Bb7 11. Be3 a5 12. Nd3 d6 13. O-O-O Bxg2 14. Rhg1 Bf3 15. Qd2 Bxd1 16. Bd4 Qg6) 10... dxc6 11. Bd2?! { (2.48 → 1.37) Inaccuracy. Be3 was best. } (11. Be3 h6 12. O-O-O Kg8 13. Bd4 Qg5+ 14. Kb1 Kh7 15. h4 Qg6 16. f3 Rd8 17. h5 Qe6) 11... Bf5? { (1.37 → 2.76) Mistake. Qxb2 was best. } (11... Qxb2 12. O-O Be6 13. Qd3 Qe5 14. Rfe1 Qd5 15. Qc3 Qc4 16. Re3 Rd8 17. h3 Qxc3 18. Bxc3) 12. Kd1?? { (2.76 → -0.22) Blunder. O-O-O was best. } (12. O-O-O h5 13. Rhe1 Qg6 14. Bc3 Kg8 15. b3 Kh7 16. f3 Rae8 17. Qf2 f6 18. Rxe8 Rxe8) 12... g6?? { (-0.22 → 3.12) Blunder. Qxb2 was best. } (12... Qxb2) 13. Qa6?? { (3.12 → -1.29) Blunder. Bh6+ was best. } (13. Bh6+ Kg8 14. Re1 Be6 15. Kc1 a5 16. Bd2 axb4 17. Bxb4 Qg5+ 18. Qe3 Qxe3+ 19. Rxe3 h5) 13... Bg4+?? { (-1.29 → 3.24) Blunder. Qxb2 was best. } (13... Qxb2 14. Rc1 Kg7 15. Re1 Rad8 16. Qc4 Rxd2+ 17. Kxd2 Rd8+ 18. Ke2 Bd3+ 19. Qxd3 Rxd3 20. Kxd3) 14. f3?? { (3.24 → 0.26) Blunder. Kc1 was best. } (14. Kc1 Re8 15. Qxa7 Re2 16. Qc5+ Ke8 17. a4 Kd7 18. f3 Rhe8 19. Rd1 Kc8 20. Qa7 Rxd2) 14... Bh5?? { (0.26 → 3.99) Blunder. Qxb2 was best. } (14... Qxb2) 15. Qb7? { (3.99 → 2.34) Mistake. Kc1 was best. } (15. Kc1 Rd8 16. Rd1 g5 17. Qxa7 Qd6 18. b3 Qe5 19. Qc5+ Qxc5 20. bxc5 f6 21. Kb2 g4) 15... Re8?! { (2.34 → 3.10) Inaccuracy. Rd8 was best. } (15... Rd8 16. Kc1) 16. Qxa7?! { (3.10 → 2.31) Inaccuracy. Kc1 was best. } (16. Kc1 g5 17. Qxa7 Re2 18. Qc5+ Qd6 19. Qxd6+ cxd6 20. Rg1 Rg8 21. Kd1 Re5 22. Bc3 Rd5+) 16... Rd8? { (2.31 → 4.30) Mistake. Bxf3+ was best. } (16... Bxf3+ 17. Kc1 Bxg2 18. Rd1 h5 19. Bc3 Qf4+ 20. Kb1 f6 21. b3 Kf7 22. Rd7+ Re7 23. Rxe7+) 17. Qxc7?? { (4.30 → -0.59) Blunder. Kc1 was best. } (17. Kc1 Rxd2 18. Kxd2 Qg5+ 19. Kc3 Qxg2 20. Rhd1 Kg7 21. Qd4+ f6 22. Qd7+ Kh6 23. Qxc6 Rf8) 17... Rd5?? { (-0.59 → 4.38) Blunder. Qd4 was best. } (17... Qd4 18. Qxd8+ Qxd8 19. g4 Qd5 20. Re1 f5 21. gxh5 Kf7 22. Kc1 Rd8 23. hxg6+ hxg6 24. Bg5) 18. Qc8+?? { (4.38 → -3.78) Blunder. Kc1 was best. } (18. Kc1 Rxd2 19. Kxd2 Qg5+ 20. Kc3 Qe3+ 21. Kc4 Qe2+ 22. Kb3 Qe6+ 23. Ka3 Kg7 24. Qa5 Qe3+) 18... Kg7 19. Qb7?? { (-3.82 → Mate in 6) Checkmate is now unavoidable. Qxh8+ was best. } (19. Qxh8+ Kxh8 20. Kc1 Rxd2 21. Kxd2 Qg5+ 22. Kc3 Qxg2 23. Rhd1 Bxf3 24. Rd2 Be2 25. b3 Qg5) 19... Qd6?? { (Mate in 6 → -5.05) Lost forced checkmate sequence. Qg5 was best. } (19... Qg5 20. Ke1 Re8+ 21. Kf1 Rxd2 22. g4 Qe3 23. Qxf7+ Kxf7 24. gxh5 Qf2#) 20. g4?? { (-5.05 → Mate in 6) Checkmate is now unavoidable. Kc1 was best. } (20. Kc1 Rxd2 21. Qb6 Re2 22. Rd1 Qf4+ 23. Kb1 Qd2 24. Rc1 Re1 25. Qd4+ Qxd4 26. Rxe1 Re8) 20... Bxg4? { (Mate in 6 → -9.25) Lost forced checkmate sequence. Qf4 was best. } (20... Qf4 21. Ke1 Re8+ 22. Qe7 Rxe7+ 23. Kf1 Qxf3+ 24. Kg1 Rxd2 25. gxh5 Qf2#) 21. fxg4? { (-9.25 → Mate in 5) Checkmate is now unavoidable. Kc1 was best. } (21. Kc1 Rxd2 22. Qb6 Bxf3 23. b3 Be4 24. Qc5 Qxc5 25. bxc5 Rxc2+ 26. Kd1 Rd8+ 27. Ke1 Bxh1) 21... Qe5?? { (Mate in 5 → 2.74) Lost forced checkmate sequence. Qf4 was best. } (21... Qf4 22. Qxf7+ Kxf7 23. Kc1 Qxd2+ 24. Kb1 Qd1+ 25. Rxd1 Rxd1#) 22. Re1?? { (2.74 → Mate in 4) Checkmate is now unavoidable. Rf1 was best. } (22. Rf1 Rhd8 23. Qxf7+ Kh8 24. Kc1 Rxd2 25. Qf3 Qxh2 26. Kb1 Rf2 27. Rxf2 Qxf2 28. Qc3+ Kg8) 22... Qd4 23. c3 Qxd2# { Black wins by checkmate. } 0-1