Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 e6 3. Bg5 Bb4+ 4. Nc3 O-O 5. e4 d5 6. e5 h6 7. Bxh6 Ne4 8. Bd2
Nc6 9. Nxe4 dxe4 10. Bxb4 Nxb4 11. a3 Na6 12. Ne2 b6 13. Qc2 Bb7 14. g3 e3 15.
Rg1 exf2+ 16. Kxf2 Qg5 17. Bg2 Bxg2 18. Rxg2 Rad8 19. Qe4 f5 20. exf6 Rxf6+ 21.
Kg1 c5 22. Qb7 Qe3+ 23. Kh1 Rdf8 24. Nf4 Nb8 25. Nh5 Rf1+ 26. Rxf1 Rxf1+ 27.
Rg1 *
Position (FEN): 1n4k1/pQ4p1/1p2p3/2p4N/2PP4/P3q1P1/1P5P/5rRK b - - 1 27
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 555
Best move: Qxg1#