Maybe I misunderstood the rules, but I think the last puzzle has one additional solution.(SPOILER) https://ibb.co/v9MrBJZ
Rot13(Va snpg, lbh pbhyq nyfb whfg zbir gur svefg ubevmbagny yvar va erny fbyhgvba bar pryy hc naq vg jbhyq fgvyy jbex, ab?)
True! Thanks for catching that. It was quite painful to try to prune out unwanted solutions with these mechanics.
