It is a game to erase stones of the same color.
When you touch a stone you can erase all the stones connected by the same color as the stone.
By erasing many stones at once, high scores will come out.
Also, at the end, you will not be able to erase them by all means. In such a case, it is "Change Stone Color". This is a magical function that can change the color of the stone only once. After touching one of the stones of "Change Stone Color", touch the stone of the game screen and change the color. By doing this, you can connect stones of the same color.
There are three difficulties.
The time to completion and the score will be registered in the game center.