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Burr puzzle, also called gossip lock and Burr puzzle, is a traditional civil building fixed antiquity nationalities in China combiner, and it is also an intellectual toy widely spread among Chinese people, there are also some names such as "Don't be bored", "Liu Zi Lianfang", "Monet he" and "difficult Wood. Burr puzzle, without nails and ropes, it is completely supported by the connection of its own structure, just like a piece of paper can stand up after being folded in half, showing a seemingly simple, but it condenses extraordinary wisdom.