Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Chigorin_Variation
Moves: 1. d4 d5 2. Nf3 Nc6 3. Bf4 Bf5 4. a3 Nf6 5. Nc3 e6 6. Nb5 a6 *
Position (FEN): r2qkb1r/1pp2ppp/p1n1pn2/1N1p1b2/3P1B2/P4N2/1PP1PPPP/R2QKB1R w KQkq - 0 7
White to move.
Themes:  Opening  
Puzzle rating: 1070
Best move: Nxc7+