Google DeepMind — Description: AlphaGo defeated Go champion Lee Sedol 4-1 in March 2016, widely characterized as a watershed AI capability moment. Famously, 'Move 37' in Game 2 was a move AlphaGo estimated humans would play with probability ~1/10,000

NoteSubject mismatch: The source (Silver et al., Nature 2016) describes AlphaGo's match against Fan Hui (European champion), not Lee Sedol. The claim references a different match entirely—the Lee Sedol match occurred in March 2016 and resulted in a 4-1 victory, but this Nature paper (published January 27, 2016) describes an earlier match against Fan Hui with a 5-0 result. The claim's reference to 'Move 37' and the specific probability estimate (~1/10,000) cannot be verified from this source text, as the source does not discuss individual moves or their probability estimates. The source confirms AlphaGo defeated a human professional Go player (a watershed moment), but the specific opponent, score, date, and Move 37 details are not addressed in this excerpt.