Fortaleza Zonal 1975
Incomplete record. This archive holds 153 of the 156 games played; 3 are missing. All 153 main-tournament games are archived. The three played qualifying playoff games in Caxias do Sul in January 1976 are missing from the approved score archives.
Raul Sanguineti won the eighteen-player South American zonal unbeaten with 13 points from seventeen games. Miguel Quinteros took second with 11½. Oscar Panno and Francisco Trois tied on 11; Panno won their later qualifying playoff 3–0.
The ninth South American zonal
The main tournament ran from 18 October to 13 November 1975 in Fortaleza, Ceará. The Clube dos Diários-Iracema organized it under the auspices of the Brazilian chess confederation. Eighteen players completed a single round robin.
Sanguineti scored nine wins and eight draws, finishing 1½ points clear of Quinteros. Panno and Trois followed on 11, ahead of Van Riemsdijk, Szmetan and Bronstein on 10. The complete contemporary crosstable agrees with all 153 archived main-tournament results.
A playoff for the third qualifying place
Panno and Trois contested the remaining Interzonal place in Caxias do Sul in January 1976. Panno won all three games. Contemporary Jaque and BCM reports give the 3–0 result; OlimpBase and BrasilBase date the match 7–10 January, although those precise days were not established in the contemporary reports inspected.
The archive contains all 153 games from Fortaleza. The three played playoff games are absent from the approved score archives and bring the whole historical total to 156. The standings shown here give the main tournament; playoff points are kept separate.
Final standings
| # | Player | Score | Record | Games |
|---|---|---|---|---|
| 1 | Sanguineti, Raul | 13/17 | +9 -0 =8 | games |
| 2 | Quinteros, Miguel Angel | 11.5/17 | +9 -3 =5 | games |
| =3 | Panno, Oscar | 11/17 | +6 -1 =10 | games |
| =3 | Trois, Francisco R Torres | 11/17 | +8 -3 =6 | games |
| =5 | Van Riemsdijk, Herman Claudius | 10/17 | +7 -4 =6 | games |
| =5 | Szmetan, Jorge | 10/17 | +7 -4 =6 | games |
| =5 | Bronstein, Luis Marcos | 10/17 | +8 -5 =4 | games |
| =8 | Gouveia, Carlos Eduardo | 9.5/17 | +6 -4 =7 | games |
| =8 | Donoso Velasco, Pedro H | 9.5/17 | +7 -5 =5 | games |
| =10 | Bravo Sedamanos, Hector | 8.5/17 | +7 -7 =3 | games |
| =10 | Emma, Jaime | 8.5/17 | +5 -5 =7 | games |
| =10 | Segal, Alexandru Sorin | 8.5/17 | +4 -4 =9 | games |
| 13 | Silva Sanchez, Carlos | 8/17 | +4 -5 =8 | games |
| 14 | Benitez, Otto | 6/17 | +3 -8 =6 | games |
| =15 | Camara, Helder | 5/17 | +1 -8 =8 | games |
| =15 | Stekel Grunberg, Moises | 5/17 | +1 -8 =8 | games |
| 17 | Garcia Toledo, Pedro | 4.5/17 | +2 -10 =5 | games |
| 18 | Gamarra Caceres, Carlos | 3.5/17 | +3 -13 =1 | games |
Cross Table
| Rank | Player | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Sanguineti, Raul | ½ | ½ | ½ | ½ | 1 | 1 | ½ | 1 | 1 | ½ | 1 | 1 | ½ | ½ | 1 | 1 | 1 | |
| 2 | Quinteros, Miguel Angel | ½ | ½ | 0 | 1 | 0 | 1 | ½ | ½ | 0 | 1 | 1 | ½ | 1 | 1 | 1 | 1 | 1 | |
| 3 | Panno, Oscar | ½ | ½ | ½ | 1 | ½ | ½ | 1 | ½ | 0 | ½ | 1 | 1 | ½ | ½ | ½ | 1 | 1 | |
| 4 | Trois, Francisco R Torres | ½ | 1 | ½ | ½ | 1 | 1 | 0 | 0 | 0 | ½ | 1 | 1 | 1 | ½ | ½ | 1 | 1 | |
| 5 | Van Riemsdijk, Herman Claudius | ½ | 0 | 0 | ½ | ½ | 1 | 1 | 0 | 1 | 1 | ½ | ½ | 1 | 1 | 1 | ½ | 0 | |
| 6 | Szmetan, Jorge | 0 | 1 | ½ | 0 | ½ | 1 | ½ | 0 | 1 | ½ | ½ | 0 | 1 | ½ | 1 | 1 | 1 | |
| 7 | Bronstein, Luis Marcos | 0 | 0 | ½ | 0 | 0 | 0 | 1 | 1 | 1 | 1 | ½ | ½ | 1 | 1 | ½ | 1 | 1 | |
| 8 | Gouveia, Carlos Eduardo | ½ | ½ | 0 | 1 | 0 | ½ | 0 | 1 | 0 | ½ | ½ | ½ | 1 | ½ | 1 | 1 | 1 | |
| 9 | Donoso Velasco, Pedro H | 0 | ½ | ½ | 1 | 1 | 1 | 0 | 0 | 0 | ½ | 0 | ½ | ½ | 1 | 1 | 1 | 1 | |
| 10 | Bravo Sedamanos, Hector | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | ½ | 0 | ½ | 1 | ½ | 1 | |
| 11 | Emma, Jaime | ½ | 0 | ½ | ½ | 0 | ½ | 0 | ½ | ½ | 1 | 0 | 0 | 1 | 1 | ½ | 1 | 1 | |
| 12 | Segal, Alexandru Sorin | 0 | 0 | 0 | 0 | ½ | ½ | ½ | ½ | 1 | 1 | 1 | ½ | ½ | ½ | ½ | ½ | 1 | |
| 13 | Silva Sanchez, Carlos | 0 | ½ | 0 | 0 | ½ | 1 | ½ | ½ | ½ | ½ | 1 | ½ | ½ | 1 | 1 | 0 | 0 | |
| 14 | Benitez, Otto | ½ | 0 | ½ | 0 | 0 | 0 | 0 | 0 | ½ | 1 | 0 | ½ | ½ | 0 | ½ | 1 | 1 | |
| 15 | Camara, Helder | ½ | 0 | ½ | ½ | 0 | ½ | 0 | ½ | 0 | ½ | 0 | ½ | 0 | 1 | ½ | 0 | 0 | |
| 16 | Stekel Grunberg, Moises | 0 | 0 | ½ | ½ | 0 | 0 | ½ | 0 | 0 | 0 | ½ | ½ | 0 | ½ | ½ | ½ | 1 | |
| 17 | Garcia Toledo, Pedro | 0 | 0 | 0 | 0 | ½ | 0 | 0 | 0 | 0 | ½ | 0 | ½ | 1 | 0 | 1 | ½ | ½ | |
| 18 | Gamarra Caceres, Carlos | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | ½ |
Each cell shows the row player's recorded results against the column player. ● = same player.