Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Chigorin_Variation
Moves: 1. d4 d5 2. Nc3 e6 3. e3 Bb4 4. Nf3 Nf6 5. Bd3 O-O 6. Bd2 Re8 7. e4 *
Position (FEN): rnbqr1k1/ppp2ppp/4pn2/3p4/1b1PP3/2NB1N2/PPPB1PPP/R2QK2R b KQ - 0 7
Black to move.
Themes:  Opening  
Puzzle rating: 1638
Best move: Bxc3