华容 said that, ancient China plays, by its 变化多端, hundred plays the characteristic and the Rubik''s cube, the independent diamond chess which does not tire of together by the overseas intelligence expert and is called "intelligence game three inconceivable". It with the tangram, 九连环 and so on the Chinese tradition longan toy also has a pronoun to be called "China difficult problem". This game altogether collects 15 kind of layouts, sincerely gives to all craves to 华容 the research friends!