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I need a math genius to explain how many Chess positions there are.

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Bogopawn657

Enough to circle the planet earth several times over!!!

chubchoo

A lot

Kyobir

Upper bound: 1.9605348*10^71.

how this number is calculated: 13^64

13 possible square states (6 for both black and white, and one blank state)

64 for the number of squares on the board