A sample image sits at the top of the screen and an empty grid below it. Reproduce the picture. The twist is that one click paints an entire row or column, and you have far fewer moves than you have squares.

That single rule turns colouring into a genuine planning puzzle. Painting a line lays colour across cells that later strokes must overwrite, so the correct solution is a specific sequence — broad strokes first, corrections after, never the reverse.

Think of it in layers. Which colour covers the most area? That goes down first. Then the next. By the time you reach single-cell details you should have only a few moves left, and they should all be touch-ups.

Get the order wrong and you run out of strokes with the picture almost right, which is a specific and quite motivating kind of frustration.