Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Exchange_Variation
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Nf3 Bb4 6. Qa4+ Nc6 7. e3 O-O 8.
Bd3 Bg4 9. Ne5 Nxe5 10. dxe5 Bxc3+ 11. bxc3 Ne4 12. Bxe4 dxe4 13. Qxe4 *
Position (FEN): r2q1rk1/ppp2ppp/8/4P3/4Q1b1/2P1P3/P4PPP/R1B1K2R b KQ - 0 13
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 464
Best move: Qd1#