Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. Nf3 d5 3. e5 c5 4. c3 d4 5. cxd4 cxd4 6. Qa4+ Nc6 7. Bb5 Bd7 8. d3
Bc5 9. Nbd2 Nge7 10. Nb3 Bb4+ 11. Bd2 Bxd2+ 12. Nfxd2 Nf5 13. Nc5 Nxe5 14. Nxb7
Qb6 15. Bxd7+ Nxd7 16. Na5 O-O 17. Nac4 Qb7 18. O-O Nc5 19. Qc2 Rac8 20. g4 Nh6
21. Nd6 Qc7 22. Nxc8 Rxc8 23. Qd1 Nxd3 24. Qb3 Nxg4 25. Nf3 Nde5 26. Rac1 Nxf3+
27. Qxf3 *
Position (FEN): 2r3k1/p1q2ppp/4p3/8/3p2n1/5Q2/PP3P1P/2R2RK1 b - - 0 27
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1050
Best move: Qxh2#