Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Taimanov_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. Bc4 Nf6 7. Nxc6 bxc6 8.
Bg5 Be7 9. f4 h6 10. Bxf6 Bxf6 11. e5 Be7 12. Qd2 Bb4 13. a3 Bc5 14. O-O-O Rb8
15. Ne4 Qb6 16. Nxc5 *
Position (FEN): 1rb1k2r/3p1pp1/pqp1p2p/2N1P3/2B2P2/P7/1PPQ2PP/2KR3R b k - 0 16
Black to move.
Themes: Queenside Attack Middlegame Mate in 1 
Puzzle rating: 622
Best move: Qxb2#