Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Moscow_Variation
Moves: 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Nxd7 5. d4 cxd4 6. Qxd4 Ngf6 7. Bg5 g6
8. Nc3 Bg7 9. Qd2 O-O 10. Bh6 Qb6 11. Bxg7 Kxg7 12. O-O-O Rfc8 13. h4 h5 14.
Ng5 Ne5 15. f3 Nc4 16. Qd4 *
Position (FEN): r1r5/pp2ppk1/1q1p1np1/6Np/2nQP2P/2N2P2/PPP3P1/2KR3R b - - 2 16
Black to move.
Themes: Queenside Attack Middlegame Mate in 1 
Puzzle rating: 959
Best move: Qxb2#