Rooting MMB29K

[danielson2047]

Has anyone found a solid method yet?

 

[12MaNy]

How to Flash and Root Android 6.0.1 for Nexus 6

 

[Ed Briggs]

Has anyone found a solid method yet?

XDA Developers forum is your friend. Nexus 6 Index Thread | Nexus 6

 

[TacoKingYo]

I'm waiting on SuperSU to release 2.52 as stable
It's in beta right now. Hopefully it'll only take a few days