Yeah, I think the general idea with a pawnroller is to cover as many promotion squares as possible to ensure at least one remains guarded.
Fritz analyses the position after 38.Rcc1 as -0.33 on first sight, so maybe there's still hope for black, but it's gonna be pretty tough, since he has only one other pawn to work with.
Another exciting game on live chess. Unfortunately I blew this one, but I had a nice tactical combination.
Here I had only three seconds left, so I blundered by playing 36...bxc1=Q+?? and lost. Can you find the right move?