Osolo is a puzzle game like Riversi. It's simple but addictive.
■Rules
・Surround the opposite color on two sides to change the color.
・You can surround the opposite color vertically, horizontally and diagonally.
・Your goal is to change all the stones to the same color.

If you solve the puzzle you can move to the next level.

It's good for your brain training.
Download this free app now and challenge yourself!