Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_French_Variation
Moves: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Qxd4 a6 5. Nc3 Nc6 6. Qd1 Nge7 7. Bf4 Ng6 8.
Bg3 Be7 9. Qd2 O-O 10. O-O-O b5 11. a3 b4 12. axb4 Bxb4 13. Qd3 Qa5 14. Nb1 Rb8
15. c3 Be7 16. Bd6 Qa2 17. Bxe7 *
Position (FEN): 1rb2rk1/3pBppp/p1n1p1n1/8/4P3/2PQ1N2/qP3PPP/1NKR1B1R b - - 0 17
Black to move.
Themes: Queenside Attack Middlegame Mate in 1 
Puzzle rating: 1029
Best move: Qxb2#