AlphaGo's Move 37 and Lee Sedol's 'Hand of God': how one match rewired human Go
r0ck3t23 · x · 2026-11-02
A retelling of the 2016 AlphaGo vs Lee Sedol match and what it revealed about human potential.
- Move 37: while Lee stepped out for a cigarette, AlphaGo played a move commentators thought was a glitch — AlphaGo itself estimated a human would play it once in ten thousand games. Lee lost that game and the match 1-4, then retired three years later, saying there is "an entity that cannot be defeated."
- Move 78, the "Hand of God": cornered in game four, Lee played his own once-in-ten-thousand move. AlphaGo's win probability collapsed and it started making inexplicable moves — the only human win against that version.
- The key research: studying millions of professional games before and after 2016, human play had barely changed for years; after AlphaGo, players adopted moves nobody had tried in centuries and decision quality jumped.
The author's point: the machine didn't kill a 2,500-year-old game — it showed players how much of it they'd never explored. "They had been inside walls for centuries and thought they were standing in the open." Somewhere in your life there's a move nobody around you has ever made.
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