Chess puzzle (Checkmate)
Opening: Benoni_Defense, Benoni_Defense_Benoni_Gambit_Accepted
Moves: 1. d4 c5 2. dxc5 Nc6 3. e3 e6 4. Nc3 Bxc5 5. Bd2 a6 6. Qe2 b5 7. Qg4 Nf6 8.
Qxg7 Rg8 9. Qh6 Bb7 10. O-O-O b4 11. Na4 b3 12. axb3 Bb4 13. Bxb4 Nxb4 14. Kb1
Qc7 15. Rc1 Ne4 16. Nh3 Nd2+ 17. Ka1 Nxb3+ 18. cxb3 *
Position (FEN): r3k1r1/1bqp1p1p/p3p2Q/8/Nn6/1P2P2N/1P3PPP/K1R2B1R b q - 0 18
Black to move.
Themes: Hanging Piece Middlegame Mate in 1 
Puzzle rating: 562
Best move: Qxc1#