Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_OKelly_Variation
Moves: 1. e4 c5 2. Nf3 a6 3. c3 Nf6 4. e5 Nd5 5. Bc4 Nb6 6. Bb3 e6 7. O-O Be7 8. d4
cxd4 9. cxd4 O-O 10. Nc3 Nc6 11. Qd3 d5 12. Bc2 Nb4 *
Position (FEN): r1bq1rk1/1p2bppp/pn2p3/3pP3/1n1P4/2NQ1N2/PPB2PPP/R1B2RK1 w - - 2 13
White to move.
Themes: Kingside Attack Opening Mate in 1 
Puzzle rating: 564
Best move: Qxh7#