Lights Out is a logic game wherein all lights need to be turned off to complete each board. See the first problem in the series for an introduction.

This problem contains boards that each require any number of moves to solve. However, now wrapping of the lights occurs. For example, if

 board = [1 0 0 0 1  
          1 1 1 0 1  
          0 1 1 1 0  
          1 1 1 0 0  
          0 0 0 1 1]

the answer is:

 moves = [2 4 13 25]

Prev.: 5x5, wrapping, 6 moves — Next: 5x5, 3 stages, <7 moves

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Last Solution submitted on Nov 04, 2025

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Alfonso Nieto-Castanon li haitao George Berken GeeTwo

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