Chess puzzle (Crushing)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Normal_Defense
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. e3 Bb4 5. cxd5 exd5 6. Qc2 O-O 7. Bd3 c5 8. Ne2
Nc6 9. a3 cxd4 10. axb4 dxc3 11. bxc3 Bd7 12. Nd4 Nxd4 13. cxd4 Rc8 14. Qb3 a6
15. O-O Bc6 16. Bb2 Ng4 17. h3 Nf6 18. Rac1 Qe7 19. Ba3 Rfd8 *
Position (FEN): 2rr2k1/1p2qppp/p1b2n2/3p4/1P1P4/BQ1BP2P/5PP1/2R2RK1 w - - 5 20
White to move.
Themes:  Middlegame  
Puzzle rating: 1237
Best move: b5