Chess puzzle (Advantage)
Opening: English_Opening, English_Opening_Symmetrical_Variation
Moves: 1. Nf3 c5 2. c4 Nc6 3. Nc3 e6 4. e4 d6 5. d4 cxd4 6. Nxd4 Nf6 7. Bd3 *
Position (FEN): r1bqkb1r/pp3ppp/2nppn2/8/2PNP3/2NB4/PP3PPP/R1BQK2R b KQkq - 2 7
Black to move.
Themes: Hanging Piece Opening  
Puzzle rating: 863
Best move: Nxd4