I was pleased with the correlation between my data and the ZQP [zonal qualifying paths] data. It was even better than I had hoped for and confirmed my belief that the ZQP data is an excellent source of info on the early FIDE zonals and interzonals.
That gave me a green light to proceed with the earlier World Championship cycles, C01-C12. An overview of C12 is shown in the following chart. It lists the players who competed in the three interzonals for that cycle.
The 1st & 3rd columns are from the ZQP data. The 2nd & 4th columns are from my own pages. The 2nd column shows in which interzonal the player participated and corresponds to the following list:-
- 1I: Las Palmas Interzonal; VII, 1982
- 2I: Moscow Interzonal; IX, 1982
- 3I: Toluca Interzonal; --, 1982
The 4th column corresponds to the zonal numbering on my page (C12) 1981-1984 Zonal Cycle. Players who didn't qualify from a zonal were seeded on other criteria.