Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Normal_Variation
Moves: 1. d4 e6 2. e4 b6 3. Nf3 Bb7 4. Bd3 Nf6 5. e5 Nd5 6. c4 Nb4 7. Be2 Be4 8. Na3
N8c6 9. Bd2 Be7 10. O-O Rb8 11. Rc1 Nxd4 *
Position (FEN): 1r1qk2r/p1ppbppp/1p2p3/4P3/1nPnb3/N4N2/PP1BBPPP/2RQ1RK1 w k - 0 12
White to move.
Themes: Hanging Piece Opening  
Puzzle rating: 907
Best move: Nxd4