Pixel Holes makes hole order compete with empty slots

Pixel Holes gives its colored collectors an order problem. The official description says to manage hole order and avoid filling every slot too early while removing the picture’s pixels. Activating another collector also uses part of the available space.

That creates a reason to inspect what a hole can collect before selecting it. A color you will eventually need may not be the useful next activation if its slot is occupied while other work waits. This is a question invited by the stated constraint, not a solved sequence; the description supplies no slot count or complete compatibility rule.

If you like clearing a picture while keeping the next move possible, investigate how the holes leave their slots. The central distinction is between needing a color somewhere in the image and having a reason to activate it now.