Rect

The problem is to arrange some pieces to make a rectangle with no hole inside.

The five pieces without the square will form a rectangle, and also all the pieces will another one.

In general, the size of a goal is a key to solve for square-making problems.

But, it is not so useful for rectangle-making.

If you solve, please consider a relationship between two rectangles.

You will find an easy way of transforming one to the other.