A banquet is a table used at a banquet. This small table was originally a set of six, with different sizes and shapes, and various patterns can be spelled out according to specific needs. Usually, this small table can also be used as a decoration for placing paintings and antiques. Later, the number of swallows changed from six to seven, which was called the "seven-star watch". But after all, the table is hard to put together, so people use small sheets instead of the desktop, which is the later puzzle.
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I. Tangram Game Tangram, also known as "Tangram" and "Wisdom Board", is a traditional jigsaw puzzle in China.
Tangram consists of seven pieces of cardboard or wooden boards with specific shapes. Although there are only seven pieces, the assembled images are varied and varied. These seven boards can be combined into many figures, such as triangles, parallelograms and irregular polygons. Players can also combine them into images of various characters, animals, buildings and daily necessities, and also combine some Chinese and English letters.
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Second, the development of Tangram Tangram was all the rage in the Ming and Qing Dynasties. There are books published on the market that specialize in Tangram, such as New Spectrum of Tangram and Eight Diagrams.
During the Xianfeng period of Qing Dynasty, calligrapher Yan initiated "Seven Clever Calligraphy", which skillfully combined calligraphy art with jigsaw puzzle skills to create a unique "Seven Clever Cursive Calligraphy".
Since the19th century, jigsaw puzzles have gradually spread all over the world and been widely loved by people. European and American countries call Tangram "Tangtu", which means China's imposition game. 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".
The book Popular Chinese Puzzle Games published in the United States also records that the French emperor Napoleon was an avid puzzle lover. Even after he was exiled to the island, he often played puzzles. The knowledge of mathematics and logic contained in jigsaw puzzles is profound, which can not only increase the fun of life, but also help teenagers to increase their knowledge and develop their intelligence.