[Event "Protactinium simul"] [Site "https://lichess.org/Yu9r1FGM"] [Date "2016.06.17"] [White "Learn-Chess"] [Black "linker29"] [Result "0-1"] [UTCDate "2016.06.17"] [UTCTime "13:48:51"] [WhiteElo "1186"] [BlackElo "1500"] [Variant "Standard"] [TimeControl "900+10"] [ECO "A04"] [Opening "Zukertort Opening: Black Mustang Defense"] [Termination "Normal"] [Annotator "lichess.org"] 1. Nf3 Nc6 { A04 Zukertort Opening: Black Mustang Defense } 2. c3 e5 3. d4 exd4 4. cxd4 d5 5. Qd3?! { (0.24 → -0.74) Inaccuracy. Nc3 was best. } (5. Nc3 Bf5 6. a3 Nf6 7. Bg5 Be7 8. e3 O-O 9. Bd3 Bxd3 10. Qxd3 Re8 11. Qc2 Qd7) 5... Nf6 6. Qe3+ Be7 7. Ne5?! { (-0.38 → -1.36) Inaccuracy. Qb3 was best. } (7. Qb3 Bg4 8. e3 Bxf3 9. gxf3 O-O 10. Bd2 Qd7 11. a3 Rfb8 12. Bg2 a6 13. O-O Qf5) 7... Nb4 8. a3?? { (-0.97 → -9.01) Blunder. Qb3 was best. } (8. Qb3 Bf5 9. Nd3 a5 10. e3 Qd7 11. a3 Qc6 12. axb4 Bxd3 13. Nc3 Bxf1 14. Rxf1 Bxb4) 8... Nc2+ 9. Kd1 Nxe3+ 10. fxe3 Ne4 11. g3 Nf2+ 12. Ke1 Nxh1 13. Bg2 f6 14. Bxh1 fxe5 15. dxe5 O-O 16. e6 Bxe6 17. Bg2 Bg5 18. Kd2 d4 19. Nc3?! { (-24.01 → Mate in 7) Checkmate is now unavoidable. Kc2 was best. } (19. Kc2 d3+ 20. exd3 Rf2+ 21. Nd2 Rxg2 22. a4 Bxe3 23. Ra3 Qd4 24. g4 Bxd2 25. Bxd2 Rxd2+) 19... dxc3+ 20. Kxc3 Bf6+?! { (Mate in 5 → -23.56) Lost forced checkmate sequence. Qd1 was best. } (20... Qd1 21. Bd5 Bf6+ 22. Kc4 Qxd5+ 23. Kb4 a5+ 24. Ka4 b5#) 21. Kb4?! { (-23.56 → Mate in 3) Checkmate is now unavoidable. Kc2 was best. } (21. Kc2 c6 22. g4 Qd6 23. Be4 Be5 24. Bd2 Qc5+ 25. Bc3 Bxc3 26. bxc3 Qb5 27. Rd1 Qa4+) 21... Qd6+ 22. Ka5 Qb6+ 23. Ka4 Bb3# { Black wins by checkmate. } 0-1