Pulsar Chess Engine is a versatile chess program available for iPhone users. It offers the classic game of chess along with six variants, including Chess960, Crazyhouse, Losers, Atomic, Three Checks, and Giveaway. Players can adjust the difficulty levels to suit their skills and track game results for review. The app also provides access to classic and modern master game collections, such as Fischer, Carlsen, and Morphy.

Pulsar Chess Engine emphasizes mobility and active positions in gameplay. Users can learn about the engine's playing style and strategies through in-app articles. With various game variants available, each offers a unique experience, suitable for both beginners and advanced players. The app allows customization of game settings, including piece choices and board color schemes.