505 Tangram is a single-player puzzle game in which players solve a variety of tangram puzzles by arranging geometric shapes to match specific silhouettes or patterns. In this game, players are challenged to complete numerous tangram puzzles from different groups, aiming to become a Tangram Master through skill and strategic thinking. It stands out with its extensive collection of puzzles, engaging gameplay that tests spatial reasoning, and the inclusion of various difficulty levels to cater to both beginners and advanced players, making it a comprehensive tangram experience.