In August 1981, a group of Dundee pub regulars spent a week playing non-stop chess in a bid to break the 168-hour world record. In July 1981, Phyllis and a group of regulars decided to take that passion a step further by attempting to break the world record for a non-stop chess marathon. Participants were allowed a five-minute break for every hour played and the record attempt would also raise money for charity. Taps aff as record attempt moved outdoorsThe third day of the record attempt was the hottest of the week. After checking with Guinness World Records that a change of venue was allowed during a scheduled break, Phyllis moved the marathon outdoors.