DWG-108.1.09
Lights #9 · Easy
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About this puzzle
13 of the 36 lamps on this 6×6 board are lit. Exactly one set of lamps switches them all off, and it takes 4 presses.
Where to start
Chasing the lights down row by row clears this board on its own: the solution presses no lamp in the top row.
With only a few presses needed, look for lit crosses — a lamp surrounded by lit neighbours is often one press away.