There appears an insurmountable difficulty in respect of lottery tickets.

This much is perhaps to be expected from someone who faced insurmountable difficulties in coping with the work.

Conducting a fair national election in the next five and a half months, they said, could present insurmountable difficulties.

But as usual this apparently insurmountable difficulty only spurred him on to further effort.

As expected, this task often met insurmountable difficulties, due to the lack of data.

Simply locating the gate should therefore present no insurmountable difficulty.

These were therefore difficulties insurmountable, and such as I knew not what to do in.

Given the nature of the beast, that didn't appear to pose an insurmountable difficulty.

I do not think there are insurmountable difficulties in this opinion.

But even he has had insurmountable difficulties in doing it.