Characteristic: When you press a piece, you can see how the pieces move (For beginners). You can play against Bluetooth communication. A timer is attached. “Move your piece soon!” There is a button for hurry. You can save and read game records. Mascot character is cute. Others: In the future we are planning to implement world battle. I usually do condensed matter physics. I like mathematics. I tried making this app in vacant time.I am sorry for some trouble of this app.