Chess puzzle (Advantage)
Opening: Kings_Gambit_Declined, Kings_Gambit_Declined_Classical_Variation
Moves: 1. e4 e5 2. f4 Bc5 3. Nf3 d5 4. exd5 e4 5. d4 exd3 6. Bxd3 Nf6 7. Nc3 O-O 8.
Na4 *
Position (FEN): rnbq1rk1/ppp2ppp/5n2/2bP4/N4P2/3B1N2/PPP3PP/R1BQK2R b KQ - 4 8
Black to move.
Themes:  Opening  
Puzzle rating: 1988
Best move: Qe8+