[Event "St Petersburg"] [Site "St. Petersburg RUS"] [Date "1914.04.28"] [Round "5"] [White "Aron Nimzowitsch (?)"] [Black "Siegbert Tarrasch (?)"] [Result "0-1"] [WhiteElo "?"] [BlackElo "?"] [Variant "Standard"] [TimeControl "-"] [ECO "D30"] [Opening "Queen's Gambit Declined: Tarrasch Defense, Pseudo-Tarrasch"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 d5 2. Nf3 c5 3. c4 e6 { D30 Queen's Gambit Declined: Tarrasch Defense, Pseudo-Tarrasch } 4. e3 Nf6 5. Bd3 Nc6 6. O-O Bd6 7. b3 O-O 8. Bb2 b6 9. Nbd2 Bb7 10. Rc1 Qe7 11. cxd5 exd5 12. Nh4 g6 13. Nhf3 Rad8 14. dxc5 bxc5 15. Bb5 Ne4 16. Bxc6 Bxc6 17. Qc2 Nxd2 18. Nxd2 d4 19. exd4?? { (-0.31 → -5.04) Blunder. g3 was best. } (19. g3 dxe3) 19... Bxh2+?! { (-5.04 → -4.01) Inaccuracy. Bxg2 was best. } (19... Bxg2 20. f4 Bxf1 21. Rxf1 Bxf4 22. Ne4 Be3+ 23. Kh1 Bxd4 24. Nf6+ Kg7 25. Qg2 Rd6 26. Nh5+) 20. Kxh2 Qh4+ 21. Kg1 Bxg2 22. f3?? { (-3.90 → -10.73) Blunder. Kxg2 was best. } (22. Kxg2 Qg4+) 22... Rfe8 23. Ne4 Qh1+ 24. Kf2 Bxf1 25. d5 f5 26. Qc3?! { (-18.73 → Mate in 5) Checkmate is now unavoidable. d6 was best. } (26. d6 Qg2+) 26... Qg2+ 27. Ke3 Rxe4+ 28. fxe4 f4+ 29. Kxf4 Rf8+ 30. Ke5 Qh2+ 31. Ke6 Re8+ 32. Kd7 Bb5# { Black wins by checkmate. } 0-1