What does the puzzle look like?

Tangram is cut into seven different boards from a square plane, including a big isosceles right triangle, a middle isosceles right triangle, two small isosceles right triangles, a square and a parallelogram. ***5 different shapes.

These seven boards can be combined into many figures (such as triangles, parallelograms and irregular polygons), and players can also combine into various figures, images, animals, bridges, houses, towers and so on.

Tangram was invented by the working people in ancient China, and its history can be traced back to at least the first century BC, and it was basically finalized in the Ming Dynasty. Ming and Qing Dynasties were widely circulated among the people in China.

Extended data

The history of jigsaw puzzles:

/kloc-in the 0/8th century, the jigsaw puzzle spread abroad. Needham said it was "one of the oldest pastimes in the East", and so far the library of Cambridge University in England still has "seven ingenious new music". American writer Edgar Allan Porter refined a puzzle with ivory. French Napoleon also used jigsaw puzzles as a pastime in exile.

/kloc-in the 0/8th century, the jigsaw puzzle spread abroad, which immediately aroused great interest. Some foreigners played all night and called it "Tangtu", which means "Puzzle from China".