Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Chigorin_Variation
Moves: 1. d4 d5 2. Nc3 e6 3. Bf4 Nf6 4. Nb5 Be7 *
Position (FEN): rnbqk2r/ppp1bppp/4pn2/1N1p4/3P1B2/8/PPP1PPPP/R2QKBNR w KQkq - 4 5
White to move.
Themes:  Opening  
Puzzle rating: 1302
Best move: Nxc7+