2081681993819799846994786333448627702865224538845305484256394568209274196127380153785256484516 (etc)

Numberphile · 19:36 · Watch on YouTube

Go contains more than a googolplex of possible legal games (10^10^108 or more), making this 2,500-year-old 19x19 board game one of the only real-world places where such a huge number occurs.

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