Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Neo-Orthodox_Variation
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. Nf3 h6 6. Bh4 O-O 7. e3 c5 8. cxd5
exd5 9. dxc5 Ne4 10. Bxe7 Qxe7 11. Nxd5 Qxc5 12. Rc1 Qa5+ 13. b4 Qxa2 14. Nc7 *
Position (FEN): rnb2rk1/ppN2pp1/7p/8/1P2n3/4PN2/q4PPP/2RQKB1R b K - 1 14
Black to move.
Themes: Attacking f2 or f7 Opening Mate in 1 
Puzzle rating: 1078
Best move: Qxf2#