Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_McDonnell_Attack
Moves: 1. e4 c5 2. f4 d6 3. Nf3 Nc6 4. c3 e5 5. fxe5 Nxe5 6. d4 cxd4 7. cxd4 Nxf3+ 8.
Qxf3 Nf6 9. Bc4 Be7 10. e5 dxe5 11. dxe5 Bg4 12. Qf2 *
Position (FEN): r2qk2r/pp2bppp/5n2/4P3/2B3b1/8/PP3QPP/RNB1K2R b KQkq - 2 12
Black to move.
Themes:  Opening Mate in 1 
Puzzle rating: 1000
Best move: Qd1#