Chess puzzle (Checkmate)
Opening: Scotch_Game, Scotch_Game_Other_variations
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 d6 5. Nxc6 bxc6 6. Nc3 Be7 7. Qf3 Nf6 8.
Bc4 O-O 9. Bg5 Bb7 10. O-O-O Nxe4 11. Bxe7 Qxe7 12. Nxe4 d5 13. Bd3 dxe4 14.
Bxe4 Qe6 15. Rhe1 Qxa2 16. Qh3 Qa1+ 17. Kd2 Rad8+ 18. Ke2 Qa6+ 19. Rd3 Rde8 *
Position (FEN): 4rrk1/pbp2ppp/q1p5/8/4B3/3R3Q/1PP1KPPP/4R3 w - - 8 20
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 636
Best move: Qxh7#