The minutes of the Winterthur Congress [17th FIDE Congress, July 1946] stipulated:If the winners of the tournaments in Groningen and Prague are not among the six above-mentioned masters [Botvinnik, Keres, Smyslov, Reshevsky, Fine, & Euwe], they shall play a match in Prague organized by the Czechoslovak Federation under the auspices of FIDE. The winner of that match shall be added to the list of participants. If one of the winners is already on the list of participants, the other shall automatically qualify.
Running ahead, we may say that this clause was of direct concern to Miguel Najdorf, and that it was virtually the only one to be repudiated later -- as a clear result of actions behind the scenes by the most influential countries in the chess world.
01 July 2009
World Championship Qualifiers 1946
There is a case to be made for including the tournaments at Groningen 1946 and Prague 1946 in any comprehensive list of World Championship qualifying events. From 'Najdorf: Life and Games' by Lissowski et al (p.27):-