Light Up vs Kakuro — two Nikoli puzzles compared. One uses light and space, the other uses numbers and sums. Which logic puzzle suits you?
| Feature | Light Up | Kakuro |
|---|---|---|
| Core Mechanic | Place bulbs to illuminate cells | Fill digits that sum to clues |
| Reasoning Type | Spatial deduction | Arithmetic + logic |
| Math Required | None | Addition, subtraction |
| Visual Feedback | Real-time light spread | None until complete |
| Grid Shape | Square grid | Irregular (crossword-like) |
| Creator | Nikoli (2001) | Nikoli (1966) |
| Unique Solution | Always | Always |
Yes. "Light Up" is the English name for Akari (あかり). They are identical puzzles with the same rules. GridPaw uses both names interchangeably.
Light Up is generally more relaxing because it has no math and provides calming visual feedback (warm light spreading across the grid). Kakuro requires arithmetic which some players find stressful.
GridPaw focuses on Light Up (Akari) puzzles. For Kakuro, you would need a dedicated Kakuro site. But the logical skills from one transfer to the other.
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