5

Solution to the 6x6 Lights Out: The bottom row of a 6x6 puzzle can contain any possible combination of lights. Therefore, a table, similar to the one Chad Birch provided above for the 5x5 puzzle, would contain 63 rows. However, you can solve any 6x6 Lights Out puzzle with this small table: |--------------------+-----------------| | Left on bottom row | Push ...


3

Playing about with different sizes of game I found a few things that piqued my curiosity. Firstly, the 4 x 4 case is trivial - chase the lit squares down and it solves on the first pass. The 2 x 2 and 3 x 3 cases are (curiously) less trivial but not exactly hard. Second, the 9 x 9 case is next to trivial. If we number the columns 1 to 9 (left to right in ...


Only top voted, non community-wiki answers of a minimum length are eligible