"Akari" (Light Up) is an elegant Japanese logic puzzle from the creators of Sudoku. You face a field of white squares and walls. Arrange lamps to illuminate every white square, following simple yet tricky rules.
Rules:
✓ A lamp illuminates its entire row and column up to the nearest wall;
✓ You must illuminate every white square without exception;
✓ Two lamps must not shine on each other (they must be in a straight line with no wall between them);
✓ The number on the wall indicates how many lamps must be placed adjacent to it.
What's inside:
• Two board sizes: 7x7 for a warm-up and a large 10x10 for a real challenge.
• Clear backlighting: illuminated squares are immediately visible.
• Errors are highlighted in red—conflicting lamps and broken numbers on the walls.
• One-touch control: tap to place and remove a lamp.
• Clean, dark design with warm lamplight.
• Clear "Rules" section right on the main screen.
Akari is a great exercise for logic and deduction: each field is solved step by step through reasoning. Numbers on the walls indicate where a lamp is absolutely necessary and where it definitely isn't. It's as addictive as Sudoku! Light up the entire room without a single mistake.
The app is free and contains ads.
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