Chess puzzle (Advantage)
Opening: Kings_Pawn_Game, Kings_Pawn_Game_Dresden_Opening
Moves: 1. Nf3 Nc6 2. c4 e5 3. e4 Bc5 4. Nc3 Nf6 5. h3 O-O 6. Nd5 *
Position (FEN): r1bq1rk1/pppp1ppp/2n2n2/2bNp3/2P1P3/5N1P/PP1P1PP1/R1BQKB1R b KQ - 2 6
Black to move.
Themes:  Opening  
Puzzle rating: 1448
Best move: Nxe4