Black Hole Square

A js13k entry built on the year’s SPACE theme, and it explains nothing on purpose. Each puzzle is a small arrangement of squares, you tap them, and things happen; working out what the rules are *is* the puzzle, and the levels are ordered so that each one teaches the rule the next one needs.

Swipe right to reset a board or go back to an earlier one, swipe left to skip ahead when a puzzle refuses to come.