Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Accelerated_Dragon
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 a6 7. Bc4 e6 8. Bb3
Nge7 9. f3 O-O 10. Qd2 f5 11. O-O-O fxe4 12. Nxe4 b5 13. Nd6 a5 14. Nxc8 Qxc8
15. a4 bxa4 16. Bxa4 Qb7 17. Kb1 Nf5 18. Nxf5 *
Position (FEN): r4rk1/1q1p2bp/2n1p1p1/p4N2/B7/4BP2/1PPQ2PP/1K1R3R b - - 0 18
Black to move.
Themes: Queenside Attack Middlegame Mate in 1 
Puzzle rating: 1280
Best move: Qxb2#