Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Been-Koomen_Variation
Moves: 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 c5 5. e3 Nc6 6. cxd5 exd5 7. Bxf6 Qxf6 8.
Nxd5 Qd8 9. Nf4 cxd4 10. Bb5 Bb4+ 11. Kf1 Bc5 12. Nf3 Bg4 13. Qa4 Bxf3 14. gxf3
O-O 15. Rd1 Qh4 16. Bxc6 dxe3 17. fxe3 Bxe3 18. Ng2 *
Position (FEN): r4rk1/pp3ppp/2B5/8/Q6q/4bP2/PP4NP/3R1K1R b - - 1 18
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1058
Best move: Qf2#