The 17th Chess Olympiad (), organized by FIDE and comprising an openAlthough commonly referred to as the men's division, this section is open to both male and female players. team tournament, as well as several other events designed to promote the game of chess, took place between October 23 and November 20, 1966, in Havana, Cuba.
The Soviet team with 6 GMs, led by world champion Petrosian, lived up to expectations and won their eighth consecutive gold medals, with the United States and Hungary taking the silver and bronze, respectively.
When Hungary and Yugoslavia tied on both game and match points, and they had drawn 2–2 with each other, the rules dictated that the final ranking would be decided by using the Neustadtl score – but not which version of it. A so-called unweighted score was used, which placed Hungary ahead of Yugoslavia, giving them the bronze medals. Had the weighted variant been used instead, the result would have been the other way around.
Results
Preliminaries
A total of 52 teams entered the competition and were divided into seven preliminary groups of seven or eight teams each. The top two from each group advanced to Final A, the teams placed 3rd-4th to Final B, no. 5-6 to Final C, and the rest to Final D. All preliminary groups and finals were played as round-robin tournaments. The preliminary results were as follows: +Group 1 № Country 1 2 3 4 5 6 7 8 + −
Points «A»
2½ 3½ 3½ 3½ 3½ 4 4
7 0 0 24½ «A» 1½
3 2 3 4 3 4
5 1 1 20½ «B» ½ 1
4 2½ 3 3½ 4
5 2 0 18½ «B» ½ 2 0
2½ 3½ 3 4
4 2 1 15½ «C» ½ 1 1½ 1½
2½ 2½ 4
3 4 0 13½ «C» ½ 0 1 ½ 1½
2 3½
1 5 1 9 «D» 0 1 ½ 1 1½ 2
1½
0 6 1 7½ «D» 0 0 0 0 0 ½ 2½
1 6 0 3
+Group 2 № Country 1 2 3 4 5 6 7 + −
Points «A»
3½ 3½ 3½ 3 4 3½
6 0 0 21 «A» ½
1 3½ 1½ 3½ 3½
3 3 0 13½ «B» ½ 3
1½ 2 2 3½
2 2 2 12½ «B» ½ ½ 2½
3 1½ 4
3 3 0 12 «C» 1 2½ 2 1
2½ 2
2 2 2 11 «C» 0 ½ 2 2½ 1½
2½
2 3 1 9 «D» ½ ½ ½ 0 2 1½
0 5 1 5
+Group 3 № Country 1 2 3 4 5 6 7 + −
Points «A»
1½ 3 2 3½ 3½ 4
4 1 1 17½ «A» 2½
2 1½ 4 3 3½
4 1 1 16½ «B» 1 2
3 3½ 4 3
4 1 1 16½ «B» 2 2½ 1
3 3 4
4 1 1 15½ «C» ½ 0 ½ 1
2½ 3
2 4 0 7½ «C» ½ 1 0 1 1½
2
0 5 1 6 «D» 0 ½ 1 0 1 2
0 5 1 4½
+Group 4 № Country 1 2 3 4 5 6 7 + −
Points «A»
2½ 3 3 4 4 4
6 0 0 20½ «A» 1½
1½ 3½ 3½ 4 4
4 2 0 18 «B» 1 2½
3 2½ 3½ 2½
5 1 0 15 «B» 1 ½ 1
2 2½ 2½
2 3 1 9½ «C» 0 ½ 1½ 2
2½ 1½
1 4 1 8 «C» 0 0 ½ 1½ 1½
3½
1 5 0 7 «D» 0 0 1½ 1½ 2½ ½
1 5 0 6
+Group 5 № Country 1 2 3 4 5 6 7 + −
Points «A»
2 3 4 4 4 4
5 0 1 21 «A» 2
2½ 3 3½ 4 4
5 0 1 19 «B» 1 1½
4 3½ 4 4
4 2 0 18 «B» 0 1 0
2½ 2½ 3½
3 3 0 9½ «C» 0 ½ ½ 1½
2½ 3½
2 4 0 8½ «C» 0 0 0 1½ 1½
3½
1 5 0 6½ «D» 0 0 0 ½ ½ ½
0 6 0 1½
+Group 6 № Country 1 2 3 4 5 6 7 8 + −
Points «A»
3 2½ 4 4 3 3½ 3½
7 0 0 23½ «A» 1
2 2½ 3½ 4 4 4
5 1 1 21 «B» 1½ 2
2½ 4 3½ 3½ 3½
5 1 1 20½ «B» 0 1½ 1½
2 2 3½ 4
2 3 2 14½ «C» 0 ½ 0 2
2½ 3½ 4
3 3 1 12½ «C» 1 0 ½ 2 1½
3½ 3
2 4 1 11½ «D» ½ 0 ½ ½ ½ ½
4
1 6 0 6½ «D» ½ 0 ½ 0 0 1 0
0 7 0 2
+Group 7 № Country 1 2 3 4 5 6 7 8 + −
Points «A»
2 2½ 2½ 3½ 4 4 4
6 0 1 22½ «A» 2
3 2 3 3½ 4 4
5 0 2 21½ «B» 1½ 1
2½ 2 2 4 4
3 2 2 17 «B» 1½ 2 1½
2½ 2 3½ 4
3 2 2 17 «C» ½ 1 2 1½
2 3 4
2 3 2 14 «C» 0 ½ 2 2 2
2 3½
1 2 4 12 «D» 0 0 0 ½ 1 2
2½
1 5 1 6 «D» 0 0 0 0 0 ½ 1½
0 7 0 2
Final
{| class="wikitable" |+ Final A ! # !!Country !! Players !! Points !! MP !! Head-to-head !! NS |- | style="background:gold;"|1 || || Petrosian, Spassky, Tal, Stein, Korchnoi, Polugaevsky || 39½ || || || |- | style="background:silver;"|2 || || Fischer, Byrne, Benko*, Evans, Addison, Rossolimo || 34½ || || || |- | style="background:#cc9966;"|3 || || Portisch, Szabó, Bilek, Lengyel, Forintos, Bárczay || 33½ || 20 || 2 || 232.25 |- | 4 || || Gligorić, Ivkov, Parma, Matanović, Matulović, Čirić || 33½ || 20 || 2 || 229.75 |- | 5 || || Najdorf, Panno, Bolbochán, Sanguineti, García, Schweber || 30 || || || |- | 6 || || Pachman, Hort, Filip, Kaválek, Jansa, Ujtelky* || 29½ || || || |- | 7 || || Minev, Bobotsov, Tringov, Padevsky, Kolarov, Popov || 28½ || || || |- | 8 || || Gheorghiu, Ciocâltea, Ghițescu, Soós*, Drimer, Stanciu || 26½ || || || |- | 9 || || Uhlmann, Pietzsch, Fuchs, Malich, Zinn, Liebert || 25½ || || || |- | 10 || || Larsen, Brinck-Claussen, Andersen, Enevoldsen, Holm, Pedersen || 20 || || || |- | 11 || || Friðrik Ólafsson, Ingi Randver Jóhannsson, Guðmundur Pálmason,Freysteinn Thorbergsson, Gunnar Gunnarsson, Guðmundur Sigurjónsson || 19 || || || |- | 12 || || Pomar, Medina García, Menvielle Laccourreye, Calvo,Franco Raymundo, Pérez Gonsalves || 18 || || || |- | 13 || || Johannessen, Zwaig, Hoen, Kristiansen, De Lange, Wibe || 14 || || || |- | 14 || || Jiménez Zerquera, Ortega, Cobo Arteaga, Rodríguez Gonzáles,García Martínez, Santa Cruz || 12 || || || |} *HUN-born {| class="wikitable" |+ Final B ! # !! Country !! Players !! Points !! MP |- | 15 || || Bouwmeester, Prins, Zuidema, Langeweg, Ree, Kapsenberg G. || 37 || |- | 16 || || Bednarski, Doda, Kostro, Śliwa, Balcerowski, Filipowicz || 31½ || |- | 17 || || Prameshuber, Kinzel, Stoppel, Winiwarter, Janetschek, Schubirz || 30 || |- | 18 || || Bhend, Walther, Blau, Roth, Glauser, Baumgartner || 28½ || 15 |- | 19 || || Porat, Kraidman, Czerniak, Kagan, Aloni, Smiltiner || 28½ || 13 |- | 20 || || Ojanen, Westerinen, Kanko, Rantanen, Lahti, Niemelä || 28 || |- | 21 || || Clarke, Lee, Hartston, Littlewood, Hindle, Keene || 27½ || |- | 22 || || Cuartas, Alzate, de Greiff, Minaya Molano, Sánchez, Restrepo || 26½ || |- | 23 || || Yanofsky, Vranesic, Witt, Suttles, Kalotay, Divinsky || 25½ || |- | 24 || || Johansson, Nilsson, Westman, Jansson, Kinnmark, Backström || 24½ || |- | 25 || || O'Kelly, Boey, Cornelis, Dunkelblum, Mollekens, Beyen || 23 || |- | 26 || || Mazzoni, Boutteville, Ducic, Zinser, Huguet, Chiaramonti || 20 || |- | 27 || || Bachtiar, Wotulo, Lim Hong Gie, Suwandhio, Hutagalung, Suradiradja || 18 || |- | 28 || || Fairhurst, Fallone, McAlpine, Pritchett, Freeman, Holmes H. D. || 15½ ||
{| class="wikitable" |+ Final C ! # !! Country !! Players !! Points !! MP |- | 29 || || Tatai, Cappello, Zichichi, Romani, Norcia || 38 || |- | 30 || || Myagmarsuren, Üitümen, Tsagan T., Zorigt, Badamgarav G., Chalkhasuren || 33½ || |- | 31 || || Naranja, De Castro, Balinas, Campomanes F., Viajar, Campomanes M. || 31 || |- | 32 || || Vizantiadis, Ornithopoulos, Anastasopoulos, Bastas, Papapostolou, Kapralos || 29 || |- | 33 || || Alvarez del Monte, Cabral, Olivera A., Olivera J. F., Elemberg, Vachini || 28 || |- | 34 || || Belkadi, Bouaziz N., Kchouk, Ben Rehouma, Bouaziz S., Mohsen || 26½ || |- | 35 || || Süer, Bilyap, Onat, Erözbek, Külür, İbrahimoğlu || 25½ || |- | 36 || || Schorr, Diaz, Villarroel, Caro, Hernández, Quintero || 25 || 12 |- | 37 || || Durão, Rocha, Cordovil, Ribeiro, Rego, Sardinha || 25 || 10 |- | 38 || || Letelier, Larrain Cadaiz, Jiménez Rojas, Orpinas, Carrasco, Vergara || 23½ || 9 |- | 39 || || Yépez Ol., Cevallos, Yepez Obando, Chonillo, Yépez Os., Calero || 23½ || 8 |- | 40 || || Heidenfeld, Cassidy R., Keogh, Reilly, Kerr, Cassidy P. || 21 || |- | 41 || || Colón Romero A., Colón Romero M., Suárez Navas, Reissmann, Benítez, Kaplan || 18½ || |- | 42 || || Philippe, Schneider, Feller, Dietrich, Piscitelli, Greiveldinger || 16 ||
{| class="wikitable" |+ Final D ! # !! Country !! Players !! Points !! MP |- | 43 || || Dreyer, Kroon, Heyns, Hangelbroek, Price, Wilken || 28 || |- | 44 || || Iglesias, Acevedo, Araiza, Camarena, Delgado, Terrazas || 24½ || |- | 45 || || García Soruco, Martínez Vaca, Salazar, Carvajal, Navarro || 22 || |- | 46 || || Casa, Weiss, Donné, Kostjoerin, Paris, Jezequelou || 20 || |- | 47 || || Bakali, Hadri, Bennis, Benabud, Kaderi, Bennouna || 19½ || |- | 48 || || Tenorio, Morales, Baca, Aguilar, Herdocia, Montalván || 17 || |- | 49 || || Pérez, Ramón Martínez, Van der Hans, Rivera || 16½ || |- | 50 || || Tarazi, Bedrossian, Galeb, Salameh, Daoud, Allam || 11 || 3 |- | 51 || || Kleopas, Constantinou, Lantsias, Madelia, Chariklis || 11 || 2 |- | 52 || || Ko Chi, Sin Kuen, Krouk, Fung Yee Wang, Hobson || 10½ ||
Final «A» № Country 1 2 3 4 5 6 7 8 9 10 11 12 13 14 + −
Points 1
2½ 2 2½ 3 2½ 3½ 3 2½ 4 3 3½ 4 3½
12 0 1 39½ 2 1½
2 1½ 3 2½ 2 2 3 3½ 3½ 4 3 3
8 2 3 34½ 3 2 2
2 2 1½ 2½ 2½ 2½ 3½ 3 3½ 3 3½
8 1 4 33½ 4 1½ 2½ 2
2 1½ 2½ 2½ 3 3 3 3½ 4 2½
9 2 2 33½ 5 1 1 2 2
2 2½ 1½ 3½ 3 2½ 2½ 3 3½
7 3 3 30 6 1½ 1½ 2½ 2½ 2
1 3 2 2 3 2½ 3 3
7 3 3 29½ 7 ½ 2 1½ 1½ 1½ 3
1½ 2 2½ 3 3 3½ 3
6 5 2 28½ 8 1 2 1½ 1½ 2½ 1 2½
2½ 2½ 2 2 2 3½
5 4 4 26½ 9 1½ 1 1½ 1 ½ 2 2 1½
1½ 3½ 3 4 2½
4 7 2 25½ 10 0 ½ ½ 1 1 2 1½ 1½ 2½
1 2½ 2½ 3½
4 8 1 20 11 1 ½ 1 1 1½ 1 1 2 ½ 3
1½ 2½ 2½
3 9 1 19 12 ½ 0 ½ ½ 1½ 1½ 1 2 1 1½ 2½
2 3½
2 9 2 18 13 0 1 1 0 1 1 ½ 2 0 1½ 1½ 2
2½
1 10 2 14 14 ½ 1 ½ 1½ ½ 1 1 ½ 1½ ½ 1½ ½ 1½
0 13 0 12
Final «B» № Country 15 16 17 18 19 20 21 22 23 24 25 26 27 28 + −
Points 15
2½ 2½ 1½ 2½ 3 2½ 3½ 3 3 3 3 3½ 3½
12 1 0 37 16 1½
1½ 3 2 1 1½ 2 2½ 3½ 3 3 3 4
7 4 2 31½ 17 1½ 2½
2 2 2½ 2 2½ 2 1½ 2½ 3½ 2 3½
6 2 5 30 18 2½ 1 2
2½ 2½ 2 2 1½ 4 2 1½ 2 3
5 3 5 28½ 19 1½ 2 2 1½
1½ 3 1 1½ 2½ 4 2 3 3
5 5 3 28½ 20 1 3 1½ 1½ 2½
2½ 2 3 3 1½ 1½ 3 2
6 5 2 28 21 1½ 2½ 2 2 1 1½
2 1½ 2 2 3 3½ 3
4 4 5 27½ 22 ½ 2 1½ 2 3 2 2
2½ 1 2 2½ 3½ 2
4 3 6 26½ 23 1 1½ 2 2½ 2½ 1 2½ 1½
2½ 1½ 1½ 3 2½
6 6 1 25½ 24 1 ½ 2½ 0 1½ 1 2 3 1½
2 3½ 2½ 3½
5 6 2 24½ 25 1 1 1½ 2 0 2½ 2 2 2½ 2
2 2½ 2
3 4 6 23 26 1 1 ½ 2½ 2 2½ 1 1½ 2½ ½ 2
1½ 1½
3 8 2 20 27 ½ 1 2 2 1 1 ½ ½ 1 1½ 1½ 2½
3
2 9 2 18 28 ½ 0 ½ 1 1 2 1 2 1½ ½ 2 2½ 1
1 9 3 15½
Final «C» № Country 29 30 31 32 33 34 35 36 37 38 39 40 41 42 + −
Points 29
2 3 4 2½ 2½ 3½ 2½ 2½ 3 2½ 3½ 3 3½
12 0 1 38 30 2
1 3 3½ 1½ 2 3½ 3 3 2½ 3 3 2½
9 2 2 33½ 31 1 3
2 3 2½ 2 1 2 3½ 2½ 1½ 4 3
7 3 3 31 32 0 1 2
2½ 2 2 2½ 2½ 2½ 3 1½ 3½ 4
7 3 3 29 33 1½ ½ 1 1½
3½ 3 3 2 2½ 2 2 2 3½
5 4 4 28 34 1½ 2½ 1½ 2 ½
2 2½ 2½ 2½ 2½ 2 2½ 2
6 3 4 26½ 35 ½ 2 2 2 1 2
1½ 2½ 1 3 2½ 2½ 3
5 4 4 25½ 36 1½ ½ 3 1½ 1 1½ 2½
2 2 2 3 2 2½
4 5 4 25 37 1½ 1 2 1½ 2 1½ 1½ 2
1½ 2½ 3 3 2
3 6 4 25 38 1 1 ½ 1½ 1½ 1½ 3 2 2½
½ 3½ 1½ 3½
4 8 1 23½ 39 1½ 1½ 1½ 1 2 1½ 1 2 1½ 3½
1 2½ 3
3 8 2 23½ 40 ½ 1 2½ 2½ 2 2 1½ 1 1 ½ 3
2 1½
3 7 3 21 41 1 1 0 ½ 2 1½ 1½ 2 1 2½ 1½ 2
2
1 8 4 18½ 42 ½ 1½ 1 0 ½ 2 1 1½ 2 ½ 1 2½ 2
1 9 3 16
Final «D» № Country 43 44 45 46 47 48 49 50 51 52 + −
Points