Values); the time limit should be twelve moves per hour; play should be limited to two sessions of 2½ hours each per day, five days a week
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Values); the time limit should be twelve moves per hour; play should be limited to two sessions of 2½ hours each per day, five days a week
Text from Wikipedia, available under CC BY-SA 4.0.
Captured 2026-08-17 from Wikipedia. The archived copy is preserved so this citation survives link rot.