An 18- world , Lee Se-Dol, retired humans cannot beat at Go. Mr Lee is the person to beat Google's AlphaGo. is a computer that plays Go. Mr Lee said: "Even I become the one, there is [] that cannot be defeated."
Go started in 3,000 years ago. Today, 46 people play in 75 . Mr Lee started playing at the of five. He turned when he was 12. He won one game against AlphaGo. He said it was because of a "" in the computer program. Today's Go are more than AplhaGo.