Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Flohr_Variation
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7 5. Nc3 e5 6. Nb3 a6 7. Be3 Nf6 8.
Qf3 b6 9. O-O-O Bb7 10. Bc4 Be7 11. Nd5 Nxd5 12. Bxd5 Rc8 13. Qxf7+ Kd8 14.
Qxg7 Rf8 15. Bg5 Bxg5+ 16. Qxg5+ Ne7 17. Bxb7 *
Position (FEN): 2rk1r2/1Bqpn2p/pp6/4p1Q1/4P3/1N6/PPP2PPP/2KR3R b - - 0 17
Black to move.
Themes: Queenside Attack Middlegame Mate in 1 
Puzzle rating: 549
Best move: Qxc2#