Found a potential bug, but no way to contact the dev about it.
If it is caused by what I suspect it is caused, it should be able to be fixed easily with a simple variable stating the number of contenders that made the first cut which should have to be over 0 to progress or if it is 0 another route could be gone.

Found another, this time it's preventing me from progressing any further.

Other than those, it's really short, but an interesting concept.