this post was submitted on 24 May 2024
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This was an old story about the inventor of chess and a king. Let me see if I can dig it up....
Yup, I remember now. It was with wheat grains, not rice:
https://en.wikipedia.org/wiki/Wheat_and_chessboard_problem
I think there exist a lot of different versions, my 7th grade maths teacher explained it using rice.