The Japanese always come up with some really amazing robotic technology. A robotic hand developed by the University of Tokyo's Ishikawa Oku Lab is so good at the game of stone, paper, scissor or Jaken as the Japanese call it, that no human can ever beat the robot, its undefeatable.
The reason no human can't beat it is cause its a robot!, little stupid humour there. Obvioulsy its a machine that's designed for the purpose.The working is pretty simple to explain, it has what the researcher call the 'high-speed vision'. This lets the robot detect the movement of the hand and recognise the move being made by the human opponent with in 1 millisecond.