DWG-108.2.09
Lights #9 · Medium
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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 9 presses.
Where to start
If you chase the lights down row by row, the solution presses 3 lamps in the top row.
Chase the lights to the bottom row, then use the lookup table in the counting guide.