Bogey, King Maker

Between scenes on CasablancaFile this one under Things-I-Didn’t-Know:

Bogart was an excellent chess player, almost of master strength. 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.