Chess puzzle (Advantage)
Opening: Vant_Kruijs_Opening, Vant_Kruijs_Opening_Other_variations
Moves: 1. e3 e5 2. a3 d5 3. d3 c5 4. c3 Nc6 5. b4 cxb4 6. cxb4 Bxb4+ *
Position (FEN): r1bqk1nr/pp3ppp/2n5/3pp3/1b6/P2PP3/5PPP/RNBQKBNR w KQkq - 0 7
White to move.
Themes:  Opening  
Puzzle rating: 1407
Best move: axb4