What Is Tangram?
Tangram is a classic Chinese dissection puzzle dating back to the Song Dynasty. The puzzle consists of exactly 7 flat geometric pieces — called tans — that together form a perfect square. The challenge is to rearrange all 7 pieces (without overlapping) to recreate a given silhouette shape.
Our free online version features 30+ puzzles organized by difficulty, with jewel-toned pieces, snap-to-position mechanics, a star rating system, and satisfying completion animations.
How It Works
Select a puzzle from the menu. The target silhouette appears on the board. Drag pieces from the tray onto the board. Right-click (or double-tap on mobile) to rotate a piece in 90° increments. Use the Flip button for the parallelogram. When all 7 pieces are correctly placed within the silhouette, the puzzle completes with a celebration animation.
Use the Hint button to briefly flash one piece into its correct position — but using a hint reduces your score to 2 stars maximum.
Frequently Asked Questions
What is a tangram puzzle?
A tangram is a classic Chinese dissection puzzle made of 7 flat geometric pieces called tans. The 7 pieces — two large triangles, one medium triangle, two small triangles, one square, and one parallelogram — are rearranged to form silhouette shapes of animals, people, objects, and abstract designs.
How many shapes can you make with tangram pieces?
Mathematically, there are 6,536 unique convex shapes possible with the 7 tangram pieces. In practice, thousands of recognizable silhouettes have been documented — including animals, human figures, letters, numbers, and objects. Classic tangram books contain hundreds to thousands of puzzles.
What are the 7 tangram pieces called?
The 7 tangram pieces are called tans. They consist of: two large right isosceles triangles, one medium right isosceles triangle, two small right isosceles triangles, one small square, and one parallelogram. Together they form a perfect square and have equal total area.
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Last updated March 2026