Classic game of Chess. There are two game modes, against a smartphone bot or against each other on the same device. The game with artificial intelligence (against a smartphone) has 5 difficulty levels. Where even a beginner can beat the easy level, but not everyone can beat the difficult level.
In the game you can set the background color: black or white, turn on or off sound effects. There are also statistics of your games - victories and defeats, divided by difficulty level.