Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Moscow_Variation
Moves: 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Nxd7 5. c4 Ngf6 6. Nc3 e6 7. O-O Be7 8.
h3 O-O 9. b3 a6 10. Bb2 Rb8 11. Rb1 b5 12. cxb5 axb5 13. Re1 b4 14. Na4 Ne8 15.
d4 Nc7 16. e5 cxd4 17. exd6 Bxd6 18. Qxd4 Nb5 *
Position (FEN): 1r1q1rk1/3n1ppp/3bp3/1n6/Np1Q4/1P3N1P/PB3PP1/1R2R1K1 w - - 1 19
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 897
Best move: Qxg7#