I learnt to look at the beginning at the difficulty level for each puzzle, in order to evaluate how much "effort" it takes Today the level of the Extra Twin 7x7 no op is negative (-9)... Anyone knows what this means?
I learnt to look at the beginning at the difficulty level for each puzzle, in order to evaluate how much "effort" it takes Today the level of the Extra Twin 7x7 no op is negative (-9)... Anyone knows what this means?
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