Trends 10.e5 Semi-Slav(D49) 2012

Here is a recent game in the 10.e5 Meran which was hotly debated in the Kramnik-Anand WC match in 2008. White continues to get nothing in this line.

GM Popov,Iv

Photo Susanpolgar Blog

Mozharov,M (2474) - Popov,Iv RUS (2605)
10.e5 cxd4 11.Nxb5 axb5 12.exf6 gxf6 [D49]
ch-Moscow Final 2012 Moscow RUS (7), 16.03.2012

Position 1
The unbalanced ending needs a delicate touch. How should black proceed?

White to Play

33.Bxd4