Chess puzzle (Advantage)
Opening: Caro-Kann_Defense, Caro-Kann_Defense_Other_variations
Moves: 1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. d4 Bf5 5. Nc3 e6 6. a3 Nc6 7. h3 Nf6 8. Bd3
Bxd3 9. Qxd3 Qb6 10. O-O Be7 11. b4 O-O 12. Bf4 Rac8 13. Rae1 Nxb4 *
Position (FEN): 2r2rk1/pp2bppp/1q2pn2/3p4/1n1P1B2/P1NQ1N1P/2P2PP1/4RRK1 w - - 0 14
White to move.
Themes:  Middlegame  
Puzzle rating: 1483
Best move: axb4