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Continue to ChatChess as a sport requires a lot of mental stamina, and this is what that makes it different from a physical sport. Chess players have a unique ability of taking in a lot of information and remembering relevant bits. So, memory and mental stamina are the key attributes. - Viswanathan Anand from https://whatsmyquote.com/quote/chess-as-a-sport-requires-a-lot-of-mental-stamina-and-this-is-what-that-makes-it-different-from-a-physical