## Shikaku

Click here to the game website. Click here for clues and strategies.

This is a mathematical game that will strengthen your factoring skills. The goal is to cover the entire grid by many rectangles and squares, all of which contain exactly one number each. The area of that rectangle or square has to match the number. The exciting part of this game is that numbers may have multiple possible factorization. For example, the number 8 has 2 possibilities: 1-by-8 and 2-by-4. The number 30 has even more: 1-by-30, 2-by-15, 3-by-10, and 5-by-6. You'll have to decide how to draw out the areas so that the goal of the game can be accomplished.

Simply left click on the mouse and drag it to enclose a rectangular region. If you make a mistake, don't panic. Right click has the effect of erasing lines.

Here is an example of the puzzle. The final result is shown on the right.

If you have any additional questions or would like to contribute any useful strategies, please contact the webmaster.