Thanks, it should be completed very soon!
Here is some stress test on the map generator, it does fail some 5% of the time, but it works fine in detecting it and re generating another.
Looks like when you hold the atari 2600 reset switch with some map based games
The ones that fail hang a bit longer, usually the flood fill(yellow) got to the corner of the screen, if not, then the area available is so small the computer could not place all 10 tombs.
Very rarely it fails because of player or key placement.