What is the Tangram?

The Tangram is a Chinese puzzle from the beginning of 1800, made of 7 polygonal pieces (called "tans"), that must be put together to form different shapes. The 7 polygons that form the Tangram are: - 5 right triangles - 1 square - 1 parallelogram The rules of the Tangram puzzle are very simple: - all 7 pieces must be used - no pieces can overlap - pieces can be rotated or flipped

Challenge no.1 - Build the square

Try to build the square using all the Tangram pieces. Drag each piece directly, or by dragging the filled dot attached to it. Use the empty dot attached to each piece to rotate it. This puzzle has more than one solution.

Challenge no. 2

Try to form these shapes: