| FIDE World Chess Championship cycle 1963-1966 |
[ Competition summary || European zonal 1 | European zonal 2 | European zonal 3 | Soviet zonal | US zonal | Canadian zonal | Central American zonal | South American zonal | West Asian zonal | South-East Asian zonal || Interzonal || Candidates QF | Candidates SF | Candidates F || WCh match ]
| South American zonal play-off :: Rio de Janeiro 1964 |
[ Crosstable || 1st | 2nd | 3rd | 4th | 5th | 6th || Information ]
Crosstable
Three players to share 3rd place in South American zonal played-off for remaining interzonal spot.
Round by round results
| 1st round |
| IM Quiñones Carillo, Oscar |
 |
|
½ - ½ |
|
 |
IM Schweber, Samuel |
| Athayde, Mauro de |
 |
|
BYE |
|
| 1.-2. Quiñones Carillo, Schweber ½; 3. Athayde 0; |
| 2nd round |
| Athayde, Mauro de |
 |
|
½ - ½ |
|
 |
IM Quiñones Carillo, Oscar |
| IM Schweber, Samuel |
 |
|
BYE |
|
| 1. Quiñones Carillo 1; 2.-3. Schweber, Athayde ½; |
| 3rd round |
| IM Schweber, Samuel |
 |
|
1 - 0 |
|
 |
Athayde, Mauro de |
| IM Quiñones Carillo, Oscar |
 |
|
BYE |
|
| 1. Schweber 1½; 2. Quiñones Carillo 1; 3. Athayde ½; |
| 4th round |
| IM Schweber, Samuel |
 |
|
0 - 1 |
|
 |
IM Quiñones Carillo, Oscar |
| Athayde, Mauro de |
 |
|
BYE |
|
| 1. Quiñones Carillo 2; 2. Schweber 1½; 3. Athayde ½; |
| 5th round |
| IM Quiñones Carillo, Oscar |
 |
|
1 - 0 |
|
 |
Athayde, Mauro de |
| IM Schweber, Samuel |
 |
|
BYE |
|
| 1. Quiñones Carillo 3; 2. Schweber 1½; 3. Athayde ½; |
| 6th round |
| Athayde, Mauro de |
 |
|
½ - ½ |
|
 |
IM Schweber, Samuel |
| IM Quiñones Carillo, Oscar |
 |
|
BYE |
|
| 1. Quiñones Carillo 3; 2. Schweber 2; 3. Athayde 1; |
Information
| South American zonal play-off |
| Dates: |
20th - 26th May 1964 |
| City: |
Rio de Janeiro (Brazil) |
| Venue: |
Clube Militar |
| Organizers: |
|
| Chief Arbiter: |
|
| Players participating: |
3 (incl. 2 IMs) |
| Games played: |
6 |
| Competition format: |
Double Round Robin |
| Tie-breaks: |
none |
| Time control: |
|
| PGN game file: |
wc1966-zonalsamplayoff.pgn |