Chess puzzle (Checkmate)
Opening: Pirc_Defense, Pirc_Defense_Austrian_Attack
Moves: 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5 6. Bb5+ Bd7 7. e5 Ng4 8. Bxd7+
Qxd7 9. d5 dxe5 10. h3 e4 11. hxg4 exf3 12. Qxf3 e6 13. Bd2 exd5 14. Nxd5 O-O
15. O-O-O Nc6 16. f5 Nd4 17. Qh3 Qxd5 *
Position (FEN): r4rk1/pp3pbp/6p1/2pq1P2/3n2P1/7Q/PPPB2P1/2KR3R w - - 0 18
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 736
Best move: Qxh7#