Tangram is an ancient Chinese traditional intelligence toy, as the name suggests, is composed of seven boards. The seven boards can be combined into many shapes (more than 1600 kinds), such as triangles, parallelograms, irregular polygons. Players can also put them into various characters, images, animals, bridges, houses, towers, etc., as well as some Chinese and English letters.
One of the most popular puzzles of the 19th century was the tangram. The popularity of Tangram is probably due to its simple structure, simple operation and easy to understand. You can make your own design with a jigsaw puzzle at will, but if you want to make a specific design with a jigsaw puzzle, you will encounter a real challenge. That's the fun of tangram.