François-André Danican Philidor
At 21 Philidor met the Syrian Philip Stamma of Aleppo, who was a translator and chess player of note. Philidor won by 8½–1⅓. At 29 he defeated his tutor Légall in a match. Unfortunately, none of these games survive, though we do have a number of games from his later career. In 1744, as a teenager, he could play two games of chess simultaneously blindfold, and in Berlin he played three games without sight of the board. He gave these exhibitions many times. This was thought to be a marvel, though it had been done before, by an Italian priest, Saccheri.p45