Chess puzzle (Checkmate)
Opening: Benko_Gambit_Declined, Benko_Gambit_Declined_Pseudo-Samisch
Moves: 1. d4 Nf6 2. c4 c5 3. d5 b5 4. f3 g6 5. e4 d6 6. cxb5 a6 7. bxa6 Bxa6 8. Bxa6
Nxa6 9. Nc3 Bg7 10. Nge2 O-O 11. O-O Qa5 12. Kh1 Rfb8 13. a3 Nc7 14. Qc2 Nb5
15. Nxb5 Qxb5 16. Nc3 *
Position (FEN): rr4k1/4ppbp/3p1np1/1qpP4/4P3/P1N2P2/1PQ3PP/R1B2R1K b - - 1 16
Black to move.
Themes: Hanging Piece, Kingside Attack Middlegame Mate in 1 
Puzzle rating: 833
Best move: Qxf1#