It seems that this has every 5x5 nonogram. And that none of them require guesswork. Ie. You can derive the answer by following an algorithm without ever having

It seems that this has every 5x5 nonogram. And that none of them require guesswork. Ie. You can derive the answer by following an algorithm without ever having to undo a step. That means that no 5x5 requires guesswork. Surely there’s got to be a maths video about this. It seems like an incredible little quirk…