This journal article will be available as a final draft post print in 2010. Bilalic, M., McLeod, P., & Gobet, F. (in press). Expert and ‘novice’ problem solving strategies in chess – Sixty years of citing de Groot (1946/1965/1978). Thinking and Reasoning. If you wish to obtain a copy please contact the author below: fernand.gobet@brunel.ac.uk