Rival Chess is a free chess game available for Android users, developed by netAdapt Apps, the creators of the popular chess site RedHotPawn.com. The game offers multiple difficulty levels to suit all players, allowing you to play against the popular Rival Chess engine or against a friend in hot-seat mode.

Rival Chess offers a variety of sets and board designs to customize the look of the game to your liking. Its intuitive "drag and drop" interface makes it easy to move pieces around the board. You can review your game at any time and export it in PGN format. Additionally, you can play multiple games at once, which are automatically saved, allowing you to pick up your game later.

Overall, Rival Chess is a great option for chess players of all levels who want a flexible and customizable chess game on their Android device.