# Kaku

> Free browser logic puzzle by Super Labs. Drag soft color rectangles on a grid so each numbered cell sits in a block whose area equals that number.

- URL: https://www.sprlbs.com/games/kaku/
- Type: Online puzzle game (Shikaku-style / divide-into-rectangles)
- Price: Free
- Platform: Mobile web and desktop browser
- Modes: Daily Challenge (3 boards/day), Endless (5×5, 7×7, 9×9)
- Features: Undo, dark mode, resume after refresh, cute block faces, soft Trois-style visuals
- Publisher: Super Labs (https://www.sprlbs.com)
- Related: Numbros (https://www.sprlbs.com/games/numbros/)

## How to play

1. Each number on the grid is the exact area of one rectangle.
2. Drag (or tap-tap) to draw a rectangle that contains exactly one number and matches its size.
3. Fill the whole board without overlaps.
4. Tap a block to erase it; undo is available.

## Audience

Players who enjoy calm logic puzzles, daily challenges, and 2048-adjacent casual browser games.