Chess puzzle (Advantage)
Opening: Blackmar-Diemer_Gambit, Blackmar-Diemer_Gambit_Other_variations
Moves: 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. Qe2 Qxd4 5. Nb5 Qc5 6. Be3 Qe5 *
Position (FEN): rnb1kb1r/ppp1pppp/5n2/1N2q3/4p3/4B3/PPP1QPPP/R3KBNR w KQkq - 4 7
White to move.
Themes:  Opening  
Puzzle rating: 1614
Best move: Bd4