Chess puzzle (Advantage)
Opening: Sicilian_Defense, Sicilian_Defense_Kan_Variation
Moves: 1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Bd3 Nc6 7. O-O *
Position (FEN): r1b1kbnr/1pqp1ppp/p1n1p3/8/3NP3/2NB4/PPP2PPP/R1BQ1RK1 b kq - 5 7
Black to move.
Themes: Hanging Piece Opening  
Puzzle rating: 1032
Best move: Nxd4