This game is amazing! The graphics are cool and SFX is great. The AI is challenging as well.
The best part, however, is that unlike traditional Othello, this one has progression system!
The only feedback I have is, when I see the valid moves (those small teal circles), I wish to know which of my pawn will move and how many of enemy pawns I can capture if I do this move. It'll help me strategize better.
All the best!