Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Open
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d6 5. Nc3 g6 6. Be3 Bg7 7. Qd2 Nf6 8.
O-O-O Ng4 9. h3 Nxe3 10. fxe3 O-O 11. g4 Ne5 12. Rg1 Nf3 13. Nxf3 Qb6 14. Nd5 *
Position (FEN): r1b2rk1/pp2ppbp/1q1p2p1/3N4/4P1P1/4PN1P/PPPQ4/2KR1BR1 b - - 2 14
Black to move.
Themes: Queenside Attack Opening Mate in 1 
Puzzle rating: 843
Best move: Qxb2#