Chess puzzle (Advantage)
Opening: Russian_Game, Russian_Game_Classical_Attack
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bf5 7. O-O Bd6 8.
Nbd2 O-O 9. Nxe4 *
Position (FEN): rn1q1rk1/ppp2ppp/3b4/3p1b2/3PN3/3B1N2/PPP2PPP/R1BQ1RK1 b - - 0 9
Black to move.
Themes:  Opening  
Puzzle rating: 1315
Best move: dxe4