Chess puzzle (Equality)
Moves: 1. c4 e6 2. e4 Nf6 3. e5 Ne4 4. Nf3 d5 5. d3 Nc5 6. b4 Ncd7 7. a3 c6 8. Bb2 Be7
9. c5 b6 10. d4 bxc5 11. dxc5 a5 12. Nbd2 Na6 13. Qb3 axb4 *
Position (FEN): r1bqk2r/3nbppp/n1p1p3/2PpP3/1p6/PQ3N2/1B1N1PPP/R3KB1R w KQkq - 0 14
White to move.
Themes:  Middlegame  
Puzzle rating: 1828
Best move: axb4