Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Open
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 g6 4. Nc3 cxd4 5. Be3 dxe3 6. fxe3 Bg7 7. Nd4 Nxd4 8.
exd4 b6 9. Bc4 Bb7 10. Qf3 e6 11. Rf1 Qe7 12. O-O-O Nh6 13. d5 e5 14. d6 Qf8
15. Nd5 Bxd5 16. Bxd5 O-O-O 17. Qc3+ Kb8 *
Position (FEN): 1k1r1q1r/p2p1pbp/1p1P2pn/3Bp3/4P3/2Q5/PPP3PP/2KR1R2 w - - 3 18
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1194
Best move: Qc7#