How to play Rectangles

Play Rectangles

The rules

• Divide the whole grid into rectangles along the cell lines. Squares count.
• Each rectangle holds exactly one number.
• That number is the number of cells in the rectangle.

Every puzzle has exactly one solution, and you reach it by logic, without guessing.

How to play here

• Draw: drag from one corner to the opposite corner and let go. The size shows under the grid while you drag.
• Tap mode: tap one corner, then tap the opposite corner.
• Remove: tap a rectangle. A new rectangle also replaces any rectangle it overlaps.
• Keyboard: arrows to move, Space to mark a corner, Space again to draw, Escape to cancel, Delete to remove.
• A rectangle with no number, two numbers, or a number that is not its size is marked with diagonal stripes.

Difficulty levels

Techniques

One fit

A number that fits in only one rectangle: draw it.

Shared cells

Every rectangle a number can make covers some of the same cells. Those cells are that number’s, so no other number can use them.

Only one number

A cell that only one number’s rectangles can reach must be in that number’s rectangle.

Try it

Draw one possible rectangle for a number and follow the easy steps. If another number or an empty cell is left with no room, that rectangle is wrong.

Tips

1. Start with the 1s, and with big numbers near a corner or between other numbers.
2. A prime number like 5 or 7 can only make a single row or a single column.
3. Look for cells far from every number: only one or two numbers can reach them.