Lee Sedol
South Korean Go master who lost a 2016 match to DeepMind AlphaGo.
Lee Sedol, one of Go’s greatest players, faced AlphaGo in Seoul in March 2016. He won one of five games but lost the match 4-1, a result that stunned the Go world and showed DeepMind’s blend of search and learning could master a game once thought too complex for machines.