Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Austrian_Defense
Moves: 1. d4 d5 2. c4 c5 3. Nf3 Nc6 4. e3 Bg4 5. Nc3 Nf6 6. cxd5 Nxd5 7. Bb5 cxd4 8.
Bxc6+ bxc6 9. Qxd4 Nxc3 10. Qxg4 *
Position (FEN): r2qkb1r/p3pppp/2p5/8/6Q1/2n1PN2/PP3PPP/R1B1K2R b KQkq - 0 10
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 722
Best move: Qd1#