Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Alapin_Variation
Moves: 1. e4 c5 2. c3 a6 3. d4 e6 4. Nf3 d5 5. e5 Nc6 6. Bd3 Nge7 7. O-O Ng6 8. g3 Be7
9. h4 O-O 10. h5 Nh8 11. dxc5 Bxc5 12. h6 g6 13. Bg5 Be7 14. Bxe7 Qxe7 15. Qe2
f6 16. Nbd2 fxe5 17. Nxe5 Nxe5 18. Qxe5 Nf7 *
Position (FEN): r1b2rk1/1p2qn1p/p3p1pP/3pQ3/8/2PB2P1/PP1N1P2/R4RK1 w - - 1 19
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 739
Best move: Qg7#