IBM Research3 min read
Ponder This Challenge - August 2026 - The Wheel of Buttons
Solving the game by hand for n=4n=4 is a good way to obtain a feel to the way a general solution works. Encode each state of the table as an element of F24\mathbb{F}_2^4, i.e. a sequence of 0 and 1 of length 4 (let 1 denote an off switch so that the goal is to reach 00000000).
By Gadi AleksandrowiczIBM Research Blog

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Originally published by IBM Research Blog on Jul 31, 2026.
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