Test coverage is insufficient: the C == 3/R == 3 case is seldom tested in the random tests. Anything above 4 is trivially generalizable, so testing those are much less important than the 3/4 ones.

This kata has nothing to do with Knight's Tour as each step do not require having the same distance. So the "hint" is completely misleading.

Kinda old but hey.
Tests except a path for R=2, C=4 (and others) but it doesn't exist.

I even tried feeding it the whole permutations set, none of them worked but it's still expecting a path.

You could add the examples test cases to the actual testset.