-
the post WW2 Soviet domination of world chess
- ian findlay,
- Jason Manley,
- Paul Leblanc,
- Roger Langen,
- Viatcheslav Rek
-
the introduction of the "Fischer" time delay chess clock
- Aris Marghetis,
- Don Parakin,
- Hal Bond,
- Ilia Bluvshtein,
- Lyle Craver,
- Marcus Wilker,
- Mark S. Dutton, I.A.,
- Michael Barron,
- Patrick McDonald,
- Victor Itkin,
- Vladimir Drkulec,
- Vladimir Semyonov
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FIDE taking over and organizing the world championship
- Christopher Field,
- Fred McKim,
- Halldor P. Palsson,
- Lloyd Lombard,
- Victor Plotkin
-
something else
- Christopher Mallon,
- David Gordon,
- Egidijus Zeromskis,
- Jeremy Sztuka,
- Nikolay Noritsyn,
- Richard Bowes,
- Vadim Tsypin