[Event "IM LagrangeEquation simul"] [Site "https://lichess.org/KYhzvHRp"] [Date "2024.01.20"] [White "LagrangeEquation"] [Black "Andraska"] [Result "1-0"] [UTCDate "2024.01.20"] [UTCTime "14:31:29"] [WhiteElo "2488"] [BlackElo "1432"] [WhiteTitle "IM"] [Variant "Standard"] [TimeControl "600+5"] [ECO "D07"] [Opening "Queen's Gambit Declined: Chigorin Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. c4 Nc6 2. d4 d5 3. Nc3 dxc4 { D07 Queen's Gambit Declined: Chigorin Defense } 4. e3?! { (0.90 → 0.29) Inaccuracy. d5 was best. } (4. d5 Ne5 5. f4 Nd7 6. e4 c6 7. dxc6 bxc6 8. Bxc4 e6) 4... Bd7?! { (0.29 → 0.95) Inaccuracy. e5 was best. } (4... e5 5. d5 Nce7 6. Bxc4 a6 7. Nge2 b5 8. Bb3 c5 9. f4) 5. Bxc4 e6 6. Nf3 Qe7?! { (1.21 → 1.89) Inaccuracy. Na5 was best. } (6... Na5 7. Be2 c5 8. O-O Nf6 9. e4 cxd4 10. Qxd4 Nc6 11. Qe3) 7. O-O O-O-O 8. Bd2?! { (2.87 → 1.94) Inaccuracy. a3 was best. } (8. a3 g5 9. b4 g4 10. Nd2 Kb8 11. Nb3 Qe8 12. b5 Nce7) 8... Nf6 9. a3 Re8? { (1.70 → 3.16) Mistake. Kb8 was best. } (9... Kb8 10. Qc2 g5 11. Nxg5 Rg8 12. f4 Bh6 13. Nge4 Bg7 14. Rae1 Nxe4 15. Nxe4 f5 16. Nc5) 10. b4 e5 11. b5 Na5 12. Nxe5? { (4.20 → 2.32) Mistake. Nd5 was best. } (12. Nd5 Nxd5 13. Bxd5 exd4 14. Nxd4 Qd6 15. Bxf7 Re7 16. Bb4 Qb6 17. Bxe7 Bxe7 18. Ba2 Kb8) 12... Nxc4 13. Nxc4 c6? { (2.33 → 4.03) Mistake. Ne4 was best. } (13... Ne4 14. a4) 14. Qb3 Ne4 15. Nxe4 Qxe4 16. Ne5?! { (4.36 → 3.14) Inaccuracy. bxc6 was best. } (16. bxc6 Bxc6 17. f3 Qd5 18. e4 Qxd4+ 19. Be3 Qd7 20. Bxa7 Qe6 21. Rac1 Rd8 22. Nb6+ Kc7) 16... Be6? { (3.14 → 5.65) Mistake. Rxe5 was best. } (16... Rxe5 17. dxe5 c5 18. a4 Be6 19. Qc3 Be7 20. f3 Qb4 21. Rfb1 Qxc3 22. Bxc3 Kc7 23. Kf2) 17. Qa4 f6 18. bxc6 Bd6 19. cxb7+ Qxb7 20. Rfc1+ Bc7 21. Rab1 Qd5? { (7.66 → Mate in 5) Checkmate is now unavoidable. Qxb1 was best. } (21... Qxb1 22. Rxb1 fxe5 23. Qc6 Re7 24. Ba5 Bd5 25. Qxd5 Bxa5 26. Qxa5 Rc7 27. Qxe5 Rd8 28. Qe6+) 22. Ba5 Re7 23. Bxc7 Rxc7 24. Rxc7+ Kxc7 25. Qxa7+ Qb7 26. Rxb7+ Kd6 27. Qc5# { White wins by checkmate. } 1-0