Chess puzzle (Advantage)
Opening: Russian_Game, Russian_Game_Three_Knights_Game
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nc3 Bc5 4. Ng5 Nc6 5. Bb5 O-O 6. Bxc6 bxc6 7. O-O Ba6 8.
d3 Ng4 9. Nf3 Nxf2 10. Rxf2 Bxf2+ 11. Kxf2 f5 12. Nxe5 *
Position (FEN): r2q1rk1/p1pp2pp/b1p5/4Np2/4P3/2NP4/PPP2KPP/R1BQ4 b - - 0 12
Black to move.
Themes: Discovered Attack Middlegame  
Puzzle rating: 1595
Best move: fxe4+