I had to break out the paper for 3+ light bulb puzzles.
It would be great to mark which options aren't valid on the website. Maybe a checkbox UI for the more challenging puzzles? Where we can mark a checkbox for entries that aren't the right answer and choose the correct one with the dropdown?
I think for difficulty 4+ pen & paper is necessary because there are too many constraints to consider, so I made myself a small helper based on rlorenzo's comment [0]
It would be great to mark which options aren't valid on the website. Maybe a checkbox UI for the more challenging puzzles? Where we can mark a checkbox for entries that aren't the right answer and choose the correct one with the dropdown?