from Simon Tatham's Portable Puzzle Collection

Try to light up all the squares in the grid by flipping combinations of them.

Click in a square to flip it and some of its neighbours. The diagram in each square indicates which other squares will flip.

Select one of the 'Random' settings from the Type menu for more varied puzzles.

Full instructions | Back to main puzzles page

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(last modified on Sat Mar 30 01:40:21 2024)