Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Colle_System
Moves: 1. Nf3 d5 2. d4 Nf6 3. e3 Bf5 4. c4 e6 5. a3 Nc6 6. Nc3 a6 7. b4 Ne4 8. Bb2
Nxb4 *
Position (FEN): r2qkb1r/1pp2ppp/p3p3/3p1b2/1nPPn3/P1N1PN2/1B3PPP/R2QKB1R w KQkq - 0 9
White to move.
Themes:  Opening  
Puzzle rating: 1040
Best move: axb4