Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Alapin_Variation
Moves: 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. c4 Nc7 5. d4 cxd4 6. Qxd4 Nc6 7. Qe3 e6 8. Nf3
d5 9. exd6 Bxd6 10. Nc3 O-O 11. c5 Be7 12. Bd2 Nd5 13. Nxd5 Qxd5 14. Rd1 Bxc5
15. Qf4 Qxa2 16. Bc3 e5 17. Qg3 Qe6 18. Be2 e4 *
Position (FEN): r1b2rk1/pp3ppp/2n1q3/2b5/4p3/2B2NQ1/1P2BPPP/3RK2R w K - 0 19
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 1473
Best move: Qxg7#