Dr James Grime talking about the Shannon Number and other chess stuff. Squarespace (10% off): http://squarespace.com/numberphile More links & stuff in full description below ↓↓↓ Support...
========== How many games of chess are there? So, there is a popular fact that the number of games of chess is greater than the number of atoms there are in the observable universe. This is the fact. Is it true? Well, the number of games of chess is known as Shannon's number so let's find out what is Shannon's number, and how it was worked out. Claude Shannon. He... in the 1950s he wrote a paper "How to program a computer to play chess" ...It was about how to program a computer to play chess. And in that paper he came up with an estimate for how many games of chess there are So it is only an estimate. So he estimated that the number of games of chess would be Ten to the power...round about ten to the power 120 Which is... well, just massive!...