Hello, thank you for the good video content, except of one historical mistake, the oldest book written in chess was by the Scholar, Abubakr Al-suli and that was around 600 hundred years before the chess player Luis, in addition pls read about (Al-suli Diamond) which has a manuscript available in Istanbul Museum, please correct the historical mistake, Chess most probably have been invented by Indians, and spread by per Arabs and Persians to Europe.