Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Delayed_Alapin
Moves: 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 e6 5. h3 Be7 6. O-O O-O 7. e5 dxe5 8. Nxe5
Bd6 9. f4 Qc7 10. d4 cxd4 11. cxd4 Nc6 12. Nc3 Nxd4 13. Be3 Nxe2+ 14. Qxe2 a6
15. Rac1 Qb8 16. Bd4 Bd7 17. Nxd7 Nxd7 18. Qg4 Bc5 *
Position (FEN): rq3rk1/1p1n1ppp/p3p3/2b5/3B1PQ1/2N4P/PP4P1/2R2RK1 w - - 2 19
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 1027
Best move: Qxg7#