You have to divide the grid into rectangular and square pieces such that each piece contains exactly one number, and that number represents the area of the rectangle.

Start

Divide the grid into rectangles so each contains exactly one number.

Wrong

This rectangle contains two numbers. Each rectangle must contain exactly one number.

Wrong

The rectangle has an area of 3 cells but the number says 2. The area must match the number.

Wrong

A rectangle has no number in it. Every rectangle must contain exactly one number.

Solved

The grid is fully divided into rectangles, each containing one number that matches its area. Puzzle complete!

Tap/click and drag to draw a rectangle.

Zooming
Pinch with two fingers to zoom in/out. If you use a mouse you can use the scroll button.

Moving
Pinch with two fingers and drag to move the puzzle. If you use a mouse you can click and drag with the middle (scroll) button.