It was inspired by the ancient Chinese puzzle Tangram. Some of the oldest and most famous are jigsaw puzzles and the Tangram puzzle. The tangram is a popular dissection puzzle of this type. A representative from each society competes in a head-to-head Tangram puzzle challenge. The first member will then solve a Tangram puzzle presented at the station. The Tangram puzzle, originally from China, spread to Europe and America in the 19th century. In Archimedes, teams have to solve a fourteen-piece Tangram. In Astucia, teams had to form a square from pieces of a tangram. Many of these unusual and exquisite tangram sets made their way to Denmark. The resulting record, "Data Mirage Tangram", was released in 2019. Treichler also played the guitar on those albums and "Data Mirage Tangram". This was later adopted by Philips Research Laboratories in their implementation of Tangram. He worked as a Chief Architect in the Intel HomeCD project and Tangram BackSchool suite. Tangram Leisure went into administration in 2012. It was sold to the Ryan Group in 1988 and to Tangram Leisure in 2000.