Chess puzzle (Advantage)
Opening: Modern_Defense, Modern_Defense_Other_variations
Moves: 1. d4 g6 2. Bf4 Bg7 3. Nf3 d6 4. e3 Nf6 5. c3 O-O 6. Nbd2 Bf5 7. Bd3 *
Position (FEN): rn1q1rk1/ppp1ppbp/3p1np1/5b2/3P1B2/2PBPN2/PP1N1PPP/R2QK2R b KQ - 4 7
Black to move.
Themes: Hanging Piece Opening  
Puzzle rating: 717
Best move: Bxd3