The one-man chainsaw developed in a Soviet prison camp is an example of the symbiosis between everyday creativity and professional creativity. The developer of the saw, Boris Kabur, Master of Mathematics at the University of Tartu, was deported to a Siberian prison camp, where he had to cut down trees in the forest in winter.

The petrol-powered one-man saw, born in poor conditions, paradoxically remained the only forester's helper in its class in the Soviet Union. The heavy weight of the saw, the uncomfortable ergonomics, the high fuel and oil demand, pushed it away from professional foresters' workplaces as soon as possible. In households, this prisoner designed and mass-produced chainsaw was used until the Soviet system collapsed due to shortage of better one.

Boris Kabur dedicated his life to literature after his imprisonment.