Robot 'wins' rock-paper-scissors

A robot developed by Japanese scientists is so fast it can "win" the rock-paper-scissors game against a human every single time.

The Janken robot - named after the game's Japanese name - is a faster version of one unveiled by University of Tokyo researchers in June 2012.

Version two completes its chosen hand shape almost at the same time as the human hand.

It uses high-speed recognition and reaction, rather than prediction - effectively cheating.

BBC Click's LJ Rich talks to Lucy Hockings about the robot.