Number Theory
Any links? I was listening to Alan Watts and he said something I disagreed with so I was too lazy to do research.
You are right, even the position of pieces on a chess board is a form of expression, a language. I combined chess, language and maths to create a website app where you can actually encrypt a text message transforming it into a chess board with its corresponding pieces. If you want to check it out, here's the address: https://chessmessages.epizy.com/