You need to observe the two shapes and estimate their areas. To play FILL IT, you need to know something about geometry, if you dont, this will be a good chance to learn. Learn for fun, double benefit.
Features
1 Fun. Simple. Easy to understand.
2 More than 50 shapes are waiting for you to fill. 3 Its definitely not as easy as what it appears. Only a few players can succeed continuously 20 times. Will you be one of them?