You break entangle by making a escape artist check DC 15 or strength check DC 10 and spend a full round action doing so (I reduced normal Web spell DC's by -10 as web is not that sticky). I forgot mention it in obstacle course description.<br/><br/>However, I did not see the failed roll in your post. A DC 15 would be enough to pass it (as it has same DC for climbs as first obstacle).