Chess puzzle (Checkmate)
Opening: Indian_Defense, Indian_Defense_Budapest_Defense
Moves: 1. d4 Nf6 2. c4 e5 3. dxe5 Ne4 4. Nc3 Bb4 5. Qc2 d5 6. cxd5 Bf5 7. Qa4+ Nc6 8.
dxc6 Nxc3 9. Qxb4 *
Position (FEN): r2qk2r/ppp2ppp/2P5/4Pb2/1Q6/2n5/PP2PPPP/R1B1KBNR b KQkq - 0 9
Black to move.
Themes:  Opening Mate in 1 
Puzzle rating: 622
Best move: Qd1#