Chess puzzle (Advantage)
Opening: Italian_Game, Italian_Game_Two_Knights_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 g6 5. a3 Bg7 6. O-O O-O 7. b4 d6 8. Ba2 d5
9. exd5 Nxd5 10. Bb2 f5 11. c4 Ndxb4 *
Position (FEN): r1bq1rk1/ppp3bp/2n3p1/4pp2/1nP5/P2P1N2/BB3PPP/RN1Q1RK1 w - - 0 12
White to move.
Themes:  Middlegame  
Puzzle rating: 1614
Best move: axb4