Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Closed
Moves: 1. e4 c5 2. Nc3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Qd2 g6 6. b3 Bg7 7. Bb2 e6 8.
O-O-O Qa5 9. Qxd6 Bxc3 10. Bxc3 Qxc3 11. Bb5 Ne7 *
Position (FEN): r1b1k2r/pp2np1p/2nQp1p1/1B6/4P3/1Pq5/P1P2PPP/2KR2NR w kq - 2 12
White to move.
Themes: Pin Middlegame Mate in 1 
Puzzle rating: 1589
Best move: Qd8#