FIDE titles were first awarded in 1950.<ref name="H/W">Hooper, David and Whyld, Kenneth 1992. "The Oxford companion to chess". 2nd ed, Oxford University Press. </ref> There are four levels of mastery. There are detailed rules as to the number of games played at a given level, and the full rules are quite lengthy. Some countries go with this system entirely, but others have their own system as well.