Chess puzzle (Advantage)
Opening: Semi-Slav_Defense, Semi-Slav_Defense_Meran_Variation
Moves: 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3
a6 9. O-O Bb7 10. e4 c5 11. d5 exd5 12. exd5 Nxd5 13. Re1+ Be7 14. Nxd5 Bxd5
15. Bg5 f6 16. Be3 Bxf3 17. Qxf3 Ne5 18. Qe4 Nxd3 19. Rad1 c4 *
Position (FEN): r2qk2r/4b1pp/p4p2/1p6/2p1Q3/3nB3/PP3PPP/3RR1K1 w kq - 0 20
White to move.
Themes:  Middlegame  
Puzzle rating: 2342
Best move: Bb6