[Event "Warsaw"] [Site "?"] [Date "1844.??.??"] [Round "?"] [White "Hoffmann, Fr. Alexander"] [Black "Petrov, Alexander Dmitrievi"] [Result "0-1"] [ECO "C53"] [Annotator "YB/80-24 Sosonko"] [SetUp "1"] [FEN "r1bqk2r/pppp1Npp/8/2bnP3/8/6K1/PB4PP/RN1Q3R b kq - 0 12"] [PlyCount "17"] [EventDate "1844.??.??"] 12... O-O $3 {Queen sacrifice! By far the best and an immediately decisive procedure.} 13. Nxd8 {There is no rescue in sight for White. After the knight move, Black even has a forced mate on the board.} Bf2+ 14. Kh3 d6+ 15. e6 Nf4+ 16. Kg4 Nxe6 17. Nxe6 Bxe6+ 18. Kg5 Rf5+ 19. Kg4 h5+ 20. Kh3 Rf3# 0-1

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