Chess puzzle (Advantage)
Opening: Dutch_Defense, Dutch_Defense_Other_variations
Moves: 1. d4 f5 2. Bf4 Nf6 3. e3 d6 4. Bd3 g6 5. h4 Bg7 6. Nf3 Nc6 7. Nc3 e6 8. a3 Qe7
9. Bb5 Bd7 10. Bg5 a6 11. Bc4 d5 12. Bd3 h6 13. Bxf6 Bxf6 14. Qd2 O-O-O 15.
O-O-O Kb8 16. Qe2 Ka7 17. b4 Nxb4 *
Position (FEN): 3r3r/kppbq3/p3pbpp/3p1p2/1n1P3P/P1NBPN2/2P1QPP1/2KR3R w - - 0 18
White to move.
Themes:  Middlegame  
Puzzle rating: 1384
Best move: axb4