Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Pin_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. f3 Nxe4 7. fxe4 Qh4+ 8.
g3 Qxe4+ 9. Ne2 Qxh1 10. Bd2 Qxh2 11. a3 Bxc3 12. Bxc3 O-O 13. Qd4 Nc6 *
Position (FEN): r1b2rk1/pp1p1ppp/2n1p3/8/3Q4/P1B3P1/1PP1N2q/R3KB2 w Q - 3 14
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 501
Best move: Qxg7#