Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 a6 3. Nf3 c5 4. d5 d6 5. c4 exd5 6. exd5 Nf6 7. Bd3 Nbd7 8. O-O
Be7 9. h3 O-O 10. Bf4 Re8 11. a4 Nh5 12. Bh2 Bf6 13. Qc2 g6 14. Bxd6 Ne5 15.
Bxe5 Bxe5 16. Nxe5 Rxe5 17. Nd2 Nf4 18. Nf3 Nxh3+ 19. Kh1 Rh5 20. gxh3 Bxh3 21.
Rg1 Bf1+ 22. Nh2 Rxh2+ 23. Kxh2 *
Position (FEN): r2q2k1/1p3p1p/p5p1/2pP4/P1P5/3B4/1PQ2P1K/R4bR1 b - - 0 23
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 519
Best move: Qh4#