DWG-108.4.04
Lights #4 · Expert
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About this puzzle
31 of the 64 lamps on this 8×8 board are lit. Exactly one set of lamps switches them all off, and it takes 29 presses.
Where to start
If you chase the lights down row by row, the solution presses one lamp in the top row.
On 8×8, the same method works; be patient with the second chase and count your presses.