Partial answer to my question (significantly more spoilers):
You can get to the credits without resetting. Extra puzzles appear to require resetting but maybe not in a very subtle way. I don’t know if resetting has a simple description. It definitely depends on invisible facts about the map.
Partial answer to my question (significantly more spoilers):
You can get to the credits without resetting. Extra puzzles appear to require resetting but maybe not in a very subtle way. I don’t know if resetting has a simple description. It definitely depends on invisible facts about the map.