Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Marshall_Defense
Moves: 1. d4 d5 2. c4 Nf6 3. Nf3 Bf5 4. cxd5 Nxd5 5. Nc3 Nxc3 6. bxc3 e6 7. Bf4 c5 8.
Bxb8 Rxb8 9. Qa4+ b5 10. Qxa7 cxd4 11. Qxd4 Qa5 12. e4 Bg4 13. Rd1 Rb7 14.
Bxb5+ Rxb5 *
Position (FEN): 4kb1r/5ppp/4p3/qr6/3QP1b1/2P2N2/P4PPP/3RK2R w Kk - 0 15
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1153
Best move: Qd7#