Gradation16

Discern the light and shade of the color.
Your color sense becomes good?

Since 16 panels will be displayed if a game starts, please touch in an order from the deeper-colored one.
If right, a panel will disappear.
When all the panels disappear, it is the end of a game.

Since the color and number of a panel which are erased next are displayed, please refer to an upper left small panel.
The level can choose 1 to 3.
On the level 1, the shade of a color clarifies and it is easy to distinguish.