Good catch Walkin. I will work that into a revised version. I also plan to note that Rooms 30 and 33 are Ice Rooms. If there are any other traps or solutions you think I should add, feel free to request it on this thread.
I have put together my own map and chart based on data from this thread and other places. I am posting this as a draft, because I'm looking for help to vet the info.