Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Closed
Moves: 1. e4 c5 2. Nc3 Nc6 3. Bb5 g6 4. Bxc6 bxc6 5. d4 cxd4 6. Qxd4 Nf6 7. b3 Bg7 8.
Bb2 Ba6 9. O-O-O O-O 10. f3 Qb6 11. Qd2 d6 12. g4 c5 13. h4 c4 14. Nd5 Nxd5 15.
Bxg7 Kxg7 16. Qxd5 cxb3 17. axb3 Qa5 18. Qd2 *
Position (FEN): r4r2/p3ppkp/b2p2p1/q7/4P1PP/1P3P2/2PQ4/2KR2NR b - - 2 18
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1460
Best move: Qa1#