Dot Not

Click on a square to flip its color and the color of the four bordering squares.

Object of the Game: Make all squares white!

You Win!

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This puzzle is similar to Lights Out (1995). The main difference is that Dot Not's game grid wraps around at the edges. This makes the space topologically equivalent to a torus (a donut), and thus infinitely long in all directions. This tends to make the gameplay harder because every click will toggle five squares. The "chase-the-lights" trick does not work because you can't confine them all against one edge. There aren't any edges!