Chess puzzle (Advantage)
Opening: Kangaroo_Defense, Kangaroo_Defense_Other_variations
Moves: 1. d4 e6 2. c4 Bb4+ 3. Bd2 a5 4. Bxb4 axb4 5. e4 b6 6. Nd2 Nf6 7. Ngf3 d5 8. e5
dxc4 *
Position (FEN): rnbqk2r/2p2ppp/1p2pn2/4P3/1ppP4/5N2/PP1N1PPP/R2QKB1R w KQkq - 0 9
White to move.
Themes:  Opening  
Puzzle rating: 1551
Best move: exf6