TETRING is an innovative puzzle game for Android that combines entertainment with mathematical theory. Players are tasked with solving the four-color theorem by strategically swiping color blocks to avoid color overlap in a grid format. This game not only presents a fun challenge but also educates users about a complex mathematical problem that has intrigued scholars for over a century. With no time limits and a variety of game modes, it caters to both casual players and puzzle enthusiasts alike.

The gameplay is straightforward; blocks are swiped in any direction, and matching colors are removed from the grid. Players can enjoy different matrix sizes ranging from 3x3 to 16x16, making the game adaptable to various skill levels. Unique features include support for color blindness modes, a leaderboard, and an achievement system to track progress. Overall, TETRING offers a blend of learning and fun, making it a distinct addition to the puzzle genre.