Which is greater? The number of atoms in the universe or the number of chess moves?

The question came from Claude Shannon, inventor of ‘Information Theory’ in 1948. The theory uses mathematics to understand the rules governing the transmission of messages through communication systems, applicable to everything from computer code, speech and music, to the dancing of bees.

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There are more possible iterations of chess games than there are atoms in the observable universe. This value, known as the Shannon Number, represents all of thepossible move variations in the game

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Which is greater? The number of atoms in the universe or the number of chess moves?

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Which is greater? The number of atoms in the universe or the number of chess moves?

It has been suggested that there are more possible games of chess than atoms in the universe. Is this true, and how do we know this? - Quora

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Are there more possible legal moves in chess than there are atoms in the universe? - Quora

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