[monkeycantype]

Ok, I was confused by this, I had vastly overcomplicated what I thought you had to do, confused by the word 'loop'

the only thing you can do in the puzzle is hide or reveal squares from the edges in.

your goal is to make sure the number of contiguous square in the shape formed by a given square and the squares up,down,left,right equals the number in the square,

the red number is just tally letting you know how far you are from your target

[MohammadAbuG]

thank for explaining it better than I could! its a little confusing to describe it with words I should add an image tutorial.