Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Modern_Variations
Moves: 1. e4 c5 2. Nf3 d6 3. Bc4 e6 4. a3 Nf6 5. d4 cxd4 6. Qxd4 Nc6 7. Qd3 Be7 8. O-O
Bd7 9. Re1 a6 10. b4 b5 11. Ba2 Qb6 12. Be3 Qc7 13. Nc3 Ng4 14. h3 Nxe3 15.
Rxe3 Bf6 16. Ne2 Bxa1 17. c3 Bb2 18. e5 d5 19. Ng5 O-O *
Position (FEN): r4rk1/2qb1ppp/p1n1p3/1p1pP1N1/1P6/P1PQR2P/Bb2NPP1/6K1 w - - 2 20
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 1095
Best move: Qxh7#