There are more possible games of chess than atoms in the observable universe
The number of possible unique chess games is estimated to be around 10¹²⁰ (known as the Shannon Number).
For comparison, scientists estimate there are about 10⁸⁰ atoms in the observable universe.
That means the number of possible chess games is unimaginably larger than the number of atoms around us.
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Posted Jul 29, 2026, 7:20 AM UTC
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