Lights Out
A classic lights out puzzle game
Lights Out launched on June 13, 2017 with 63 votes, #717 of 3,107 launches that month and more than 50% of that year's launches. The site was not reachable when checked in September 2026.
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Lights Out: my 2D Rubik's Cube-like Game2025 · raymondtana.github.io · ▲82"Lights Out" is a mathematical puzzle that lives on an grid where each cell of the grid is one of two colors: either red or white. The goal is to eventually get all the cells in the grid to be red. What's the catch? Clicking a cell will not only flip its color, but also that of all cells sharing the same row or column as it. To me, this game feels like playing with a Rubik's cube --- every time you think you are fixing one cell, you mess up its neighbors! There are many ways to arrive at a solution... some mathematical (linear algebra, or combinatorics), others more logical,... and yet…
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