Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Accelerated_London_System
Moves: 1. d4 d5 2. Bf4 Nc6 3. e3 Nf6 4. c4 g6 5. Nc3 Bg7 6. Nb5 e5 7. dxe5 Nh5 8. e6 *
Position (FEN): r1bqk2r/ppp2pbp/2n1P1p1/1N1p3n/2P2B2/4P3/PP3PPP/R2QKBNR b KQkq - 0 8
Black to move.
Themes:  Opening  
Puzzle rating: 1601
Best move: Nxf4