Free Light Up (Akari) Online
Light Up, also known as Akari, is a logic puzzle game that involves illuminating a grid by placing light bulbs in specific positions. The goal is to light up all the black squares in the grid without placing light bulbs in prohibited positions. The game is played on a rectangular grid.
Place light bulbs in the grid so as to light up all the blank squares. A light illuminates its own square and all the squares in the same row or column unless blocked by walls (black squares). Lights may not illuminate each other. Each numbered square must be orthogonally adjacent to exactly the given number of lights.
Click on a square to place or remove a light. Right-click to place a dot indicating that you think there is no light in that square.
Courtesy of Simon Tatham's Puzzle Collection via the MIT license.
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