Chess puzzle (Advantage)
Opening: Vienna_Game, Vienna_Game_Mengarini_Variation
Moves: 1. e4 e5 2. a3 Nf6 3. Nc3 h6 4. Bc4 c6 5. d3 Be7 6. Be3 O-O 7. Nf3 d6 8. O-O
Bg4 9. b4 Nbd7 10. a4 a6 11. a5 Nh7 12. Ne2 Bxf3 13. gxf3 Ng5 14. Ng3 Kh8 15.
f4 *
Position (FEN): r2q1r1k/1p1nbpp1/p1pp3p/P3p1n1/1PB1PP2/3PB1N1/2P2P1P/R2Q1RK1 b - - 0 15
Black to move.
Themes:  Opening  
Puzzle rating: 1732
Best move: exf4