Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Classical_Variation
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bb5 Bd7 7. O-O a6 8.
Be2 b5 9. f3 g6 10. Be3 Bg7 11. a4 b4 12. Nd5 Nxd5 13. exd5 Nxd4 14. Bxd4 Bxd4+
15. Qxd4 a5 *
Position (FEN): r2qk2r/3bpp1p/3p2p1/p2P4/Pp1Q4/5P2/1PP1B1PP/R4RK1 w kq - 0 16
White to move.
Themes: Hanging Piece Middlegame Back Rank Mate, Mate in 1 
Puzzle rating: 775
Best move: Qxh8#