Chess puzzle (Advantage)
Opening: Blackmar-Diemer_Gambit, Blackmar-Diemer_Gambit_Ryder_Gambit
Moves: 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Qxf3 e6 6. Bg5 Be7 7. O-O-O O-O 8.
d5 e5 9. Bxf6 Bxf6 10. Bc4 Nd7 11. Nge2 Nb6 12. Bb3 a5 13. a3 Bd7 14. Rhf1 Qc8
15. h3 c5 16. dxc6 Bxc6 17. Ne4 a4 18. Ba2 Qc7 *
Position (FEN): r4rk1/1pq2ppp/1nb2b2/4p3/p3N3/P4Q1P/BPP1N1P1/2KR1R2 w - - 2 19
White to move.
Themes: Kingside Attack Middlegame  
Puzzle rating: 1001
Best move: Nxf6+