Grunfeld Exchange 8.Rb1-TWIC 955

The Grunfeld 8.Rb1 exchange variation is a deep bed of theory. The Be5-c5(idea ...Ba5) is recommended in The Safest Grunfeld(Chess Stars 2011) but with 15...Ba5.

GM Maze tried a new idea-15...c4, but the pawn sacrifice was poorly followed up which turned it into a nice gift and a straight forward white win.

Ding Liren (2709) - Maze,S (2556) 
Grunfeld Exchange 8.Rb1[D85]
Reykjavik Open 2013 Reykjavik ISL (7.7), 24.02.2013

Position 1

White is well on the way to realizing the P+ advantage but the Bd7 stands in the way as a firm blockader. What should white do now?

White to Play

23...Kf8