This post discusses how to solve flip puzzles like Simon Tatham’s “Flip” or David Johnson-Davies’s 16 LEDs puzzle , where each cell in a rectangular grid represents a light that can be either on or off, and the goal is to have all lights turned on.
This post discusses how to solve flip puzzles like Simon Tatham’s “Flip” or David Johnson-Davies’s 16 LEDs puzzle , where each cell in a rectangular grid represents a light that can be either on or off, and the goal is to have all lights turned on.