Chess puzzle (Advantage)
Opening: Blackmar-Diemer_Gambit, Blackmar-Diemer_Gambit_Gedult_Gambit
Moves: 1. e4 d5 2. d4 dxe4 3. f3 f5 4. fxe4 fxe4 5. Nc3 Nc6 6. Be3 e5 7. dxe5 Qxd1+ 8.
Kxd1 Nf6 *
Position (FEN): r1b1kb1r/ppp3pp/2n2n2/4P3/4p3/2N1B3/PPP3PP/R2K1BNR w kq - 1 9
White to move.
Themes:  Opening  
Puzzle rating: 1631
Best move: exf6