I haven't been keeping up with all the LEVELS like "Challenge III",
but I still read the forum and I just downloaded Simulations.zip.
I am wondering if you're using these types of sim levels in any other
LEVELS (big letters for the LEVEL files vs. small letters the
individual levels :)
If not, I would like to see if you can encode a real (solvable) level
for "Challenge III" with your machinery so that it will be difficult
to find the solution.
-Steve/Horst