Logic Masters Deutschland e.V.

Akari Rules: Place light bulbs in the grid in order to light up the white cells. Light bulbs illuminate their own cell, as well as any cells they can see horizontally or vertically. Light cannot pass through black cells or the puzzle perimeter. No bulb is allowed to illuminate another bulb and any black cell with a number indicates how many bulbs are orthogonally adjacent to the cell. The puzzle is complete when all white cells have been illuminated.

Author: 红葉 (MOMIJI), from China, this question comes from his personal blog.

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