Tangram

After talking about jigsaw puzzle in my previous post, I would like to introduce another tiling puzzle to my readers, Tangram, also known as 七巧板 in Chinese.

Usually, the puzzle consists of seven flat pieces, called tans. All the 7 pieces can be put together to form shapes. The aim of the puzzle is to form a specific shape based on the outline or silhouette given, with all 7 pieces, and the pieces are not allowed to overlap with each other.
Try the puzzle out by clicking this link.

History of Tangram
The puzzle originated from China. Earliest known book in China is dated 1813, but the puzzle was invented even before that, therefore the date of invention of tangram is unknown.
The puzzle was spread across Europe and America during the 19th century, this is due to the opening up of trade with China. Lots of books and picture card sets of the puzzle were released. Tangram continues to entertain people until today.