The Walk-up, Tower 4 of 25

Tower 4 of 25 · The Walk-up · Main Street · standard wiring
switches 0 · par 5
Nine windows. Flipping a switch a second time just undoes it, so every switch is either part of your answer or it is not.

A bright frame marks a flipped switch. Flip it again to take it back; your browser's Back button undoes a move too.

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