About Lamp Lighter
Lamp Lighter is a logic puzzle known around the world as Light Up or Akari. Each lamp lights its own square and shines along its row and its column until the light hits a wall. The goal is to light every floor square in the house.
There are two rules to keep: two lamps may never shine on each other, and a wall with a number must have exactly that many lamps touching it, above, below, left and right. Walls with a 0 have none, and walls with a 4 are surrounded. There are 60 puzzles from small 6 by 6 rooms to 10 by 10 castles.
It is a puzzle of pure reasoning: numbers tell you where lamps must go, and light tells you where they cannot. Dots help mark squares that cannot have a lamp. Every puzzle has exactly one answer, checked by a robot, and solving without hints wins 3 stars.
Best for ages 8+
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