Egg Tangram Puzzle. The object of the Egg Tangram puzzle is to arrange all the 9 pieces into different shapes (the most popular ones are Birds). Unlike many other puzzles, the Egg Tangram allows for endless creativity as you form new shapes! All of our Tangram puzzle sets are wonderful mathematical games that help build critical thinking skills and understanding of geometry, making this the ideal present for children. This is a great game for all ages and skill levels.