Chess puzzle (Advantage)
Opening: Queens_Gambit_Accepted, Queens_Gambit_Accepted_Other_variations
Moves: 1. d4 d5 2. c4 dxc4 3. Nc3 Nf6 4. e3 e6 5. Bxc4 Nc6 6. Nge2 Bb4 7. a3 Ba5 8. b4
Nxb4 *
Position (FEN): r1bqk2r/ppp2ppp/4pn2/b7/1nBP4/P1N1P3/4NPPP/R1BQK2R w KQkq - 0 9
White to move.
Themes:  Opening  
Puzzle rating: 1760
Best move: axb4