Chess puzzle (Advantage)
Opening: Blackmar-Diemer_Gambit, Blackmar-Diemer_Gambit_Lemberger_Countergambit
Moves: 1. d4 d5 2. e4 dxe4 3. Nc3 e5 4. Qh5 Qxd4 5. Be3 Nf6 6. Qg5 h6 7. Qg3 Qd6 8.
Rd1 Qe6 9. b3 Bb4 10. Bd2 O-O 11. Bc4 Qd6 12. Nge2 Nh5 13. Qh4 Nf4 *
Position (FEN): rnb2rk1/ppp2pp1/3q3p/4p3/1bB1pn1Q/1PN5/P1PBNPPP/3RK2R w K - 9 14
White to move.
Themes:  Middlegame  
Puzzle rating: 1684
Best move: Bxf4