“a chess player can burn up to 6,000 calories a day while playing in a tournament, three times what an average person consumes in a day.”https://twitter.com/kumaraishwarya/status/1172490511145418752 …
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I'm a big chess player and I'm kind of skeptical about this. When you're playing a tournament, it's often difficult to find time to eat a proper meal. Heavy meals make your thinking worse as well, so they're to be avoided. Fwiw, over-the-board chess is way more energy intensive
than online or on-screen chess. After 4 hours of chess in person I am totally exhausted. After 4 hours of chess online I might be tired, but not nearly as much. I don't know if it requires more energy to look at 3-d pieces or if my arms get tired moving them, but it's real.
