Indeed. The 6000 number has floated around for a while and is an exaggeration.
It is true that chess at the competitive level burns calories. (More like an extra 1000 a day during a tournament.) Coupled with tournaments not allowing food, players do lose weight over a few days! But like you said, the 6000 number is an exaggeration.
It is true that chess at the competitive level burns calories. (More like an extra 1000 a day during a tournament.) Coupled with tournaments not allowing food, players do lose weight over a few days! But like you said, the 6000 number is an exaggeration.