[ Competition summary || Zonal 1.1 | Zonal 1.2a | Zonal 1.2b | Zonal 1.3 | Zonal 1.4 | Zonal 1.5a | Zonal 1.5b | Zonal 1.6 | Zonal 1.7a | Zonal 1.7b |
| Zonal 2.1 | Zonal 2.2 | Zonal 2.3 | Zonal 2.4 | Zonal 3.1 | Zonal 3.2 | Zonal 3.3 | Zonal 3.4 | Zonal 4.1 | Zonal 4.2 | Zonal 4.3 ||
|| Interzonal || Candidates tournament | Candidates challenge match || WCh match ]

Possibly no zonal was played.