Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Bd6 3. Nc3 Nf6 4. Bc4 Nc6 5. d3 Bc5 6. Bg5 O-O 7. Nd5 Be7 8.
Nxf6+ Bxf6 9. Bxf6 Qxf6 10. Qd2 d5 11. exd5 Re8 12. O-O-O Nd4 13. Nxd4 exd4 14.
f4 b5 15. Bb3 Rb8 16. g3 b4 17. Rde1 Rxe1+ 18. Rxe1 Ba6 19. Re4 h6 20. Ba4 Qf5
21. b3 Bb5 22. Qxb4 Qxd5 23. Rxd4 Qh1+ 24. Kb2 a6 25. c4 Qxh2+ 26. Ka3 Qg1 27.
cxb5 *
Position (FEN): 1r4k1/2p2pp1/p6p/1P6/BQ1R1P2/KP1P2P1/P7/6q1 b - - 0 27
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1444
Best move: Qc1#