Chess puzzle (Advantage)
Opening: Blackmar-Diemer_Gambit, Blackmar-Diemer_Gambit_Ryder_Gambit
Moves: 1. d4 Nf6 2. f3 d5 3. e4 dxe4 4. Nc3 exf3 5. Qxf3 e6 6. Be3 Bb4 7. Ne2 Bd7 8.
O-O-O Bc6 9. Qg3 Nh5 10. Qg4 g6 *
Position (FEN): rn1qk2r/ppp2p1p/2b1p1p1/7n/1b1P2Q1/2N1B3/PPP1N1PP/2KR1B1R w kq - 0 11
White to move.
Themes:  Opening  
Puzzle rating: 1698
Best move: d5