Another Akari for you.
Rules are available here: http://en.wikipedia.org/wiki/Light_Up
Summary of the rules: put light bulbs in some of the squares so that all of the squares are lit, but no two light bulbs light each other. The black squares block light, and each number indicates the number of adjacent squares that contain light bulbs. (The light bulbs are semi-polarized in such a way that they only shine horizontally or vertically)