Encoding tic-tac-toe in 15 bits
I recently stumbled upon a blog post by Alejandra González (a.k.a @blyxyas) that seeks to compress a tic-tac-toe game state into as few bits as possible. She arrived at a solution in 18 bits. This got me thinking, can we do better?
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15 bits is possible if you encode the state in base-3, where each digit represents one of the cells