Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Marshall_Defense
Moves: 1. d4 d5 2. c4 Nf6 3. Nc3 Bg4 4. h3 Bh5 5. g4 Bg6 6. f4 h6 7. f5 Bh7 8. Bg2 e6
9. cxd5 exf5 10. Qa4+ Nbd7 11. gxf5 Bxf5 12. e4 Bg6 13. e5 Nh5 14. e6 Qh4+ 15.
Kd1 Qg3 *
Position (FEN): r3kb1r/pppn1pp1/4P1bp/3P3n/Q2P4/2N3qP/PP4B1/R1BK2NR w kq - 3 16
White to move.
Themes:  Opening Mate in 1 
Puzzle rating: 946
Best move: Qxd7#