<h1>Rectangles</h1>

<p>You have a grid of squares, with numbers written in some (but not all) of the squares. Your task is to subdivide the grid into rectangles of various sizes, such that (a) every rectangle contains exactly one numbered square, and (b) the area of each rectangle is equal to the number written in its numbered square. </p>

<h1>Rectangles controls</h1>

<p>Use the cursor keys to move the position indicator around the board. Pressing the "Ok" key then allows you to use the cursor keys to drag a rectangle out from that position, and pressing the "Ok" key again completes the rectangle. Using the "9" key instead of the return key allows you to erase the contents of a rectangle without affecting its edges, as above.</p>