Humphrey Bogart was an excellent chess player, almost of master level (2100). Before he made any money from acting, he would hustle players for dimes and quarters, playing in New York parks and at Coney Island. The chess scenes in Casablanca had not been in the original script, but were put in at his insistence. A chess position from one of his correspondence games appears in the movie, although the image is a little blurred. He achieved a draw in a simultaneous exhibition given in 1955 at Beverly Hills by the famous chess Grandmaster Samuel Reshevsky and also played against George Koltanowski in San Francisco in 1952 (Koltanowski played blindfolded but still won in 41 moves).