shithub: puzzles

ref: 42cc7f6cb0bfb99255e94c86e3c155bc1c9fd0e1
dir: /html/flip.html/

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Flip
<p>
Try to light up all the squares in the grid by flipping combinations
of them.
<p>
Click in a square to flip it and some of its neighbours. The diagram
in each square indicates which other squares will flip.
<p>
Select one of the 'Random' settings from the Type menu for more
varied puzzles.