Chess puzzle (Advantage)
Opening: Caro-Kann_Defense, Caro-Kann_Defense_Other_variations
Moves: 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Be3 Bf5 5. g4 Bg6 6. Bg2 Qa5 7. h4 h6 8. Nh3
e6 9. Nf4 Bh7 10. Qd2 Bb4 11. a3 Nd7 12. O-O Ndf6 *
Position (FEN): r3k1nr/pp3ppb/2p1pn1p/q7/1b1PpNPP/P1N1B3/1PPQ1PB1/R4RK1 w kq - 3 13
White to move.
Themes:  Middlegame  
Puzzle rating: 1382
Best move: axb4