Chess puzzle (Checkmate)
Moves: 1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 h5 5. Nf3 e6 6. Be2 Be7 7. Ng5 Bg6 8. O-O Nd7
9. Bd3 Bxd3 10. Qxd3 Qb6 11. Nxe6 fxe6 12. Qg6+ Kd8 13. Qxg7 Qxd4 14. Qxh8 Kc7
15. Qxh5 Nxe5 16. Nc3 Nf6 17. Be3 Qxe3 18. Qf7 Qc5 19. Qxe6 Qd6 20. Qf5 Rg8 21.
Rae1 Nfg4 22. Na4 Nf3+ 23. Qxf3 *
Position (FEN): 6r1/ppk1b3/2pq4/3p4/N5nP/5Q2/PPP2PP1/4RRK1 b - - 0 23
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 510
Best move: Qh2#