Chess puzzle (Advantage)
Moves: 1. c4 c6 2. d4 d5 3. cxd5 cxd5 4. Bf4 Nf6 5. e3 Bf5 6. Nc3 e6 7. Bd3 Bxd3 8.
Qxd3 Nc6 9. Qb5 Qc8 10. Nf3 a6 11. Qb6 Nb4 12. O-O Nd7 13. Qc7 Qxc7 14. Bxc7
Rc8 15. Bg3 Be7 16. a3 Nc6 17. b4 b5 18. Ne2 O-O 19. Rfc1 Bf6 20. Rc2 e5 *
Position (FEN): 2r2rk1/3n1ppp/p1n2b2/1p1pp3/1P1P4/P3PNB1/2R1NPPP/R5K1 w - - 0 21
White to move.
Themes: Defensive Move Middlegame  
Puzzle rating: 2015
Best move: Rac1