If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
In this game there will be a piece of land with some houses on it, each house will bare a number. Your job is to put in fences so that the land is separated into rectangular fields, each field should contain exactly one house and the area of the field should be the same as the number marked on the house. Use the mouse to drag to put in the fences.
This game is played by mouse only.