The first match occurred in
Belgrade, March 29 – April 5, 1970 and was billed as "The Match of the Century – USSR versus the Rest of the World". Ten team members played four games against their opposite number. Two reserves could be utilised to fill in on any board at the direction of the team captain. Max Euwe was the captain of the "Rest of the World" team and he announced the order of the team's players. For the first time,
Arpad Elo's
rating system was used to determine seeding and board order, except in the case of
Larsen and
Fischer. Larsen could not accept that Fischer's rating made him the World's Board 1 when Fischer's recent period of inactivity was contrasted with Larsen's recent successes. After many negotiations, and just as the developing disagreement appeared to be endangering the match, Fischer surprisingly agreed to step down to Board 2. The lineup was announced by Euwe well in advance of the match. At the time of the match, many people in Belgrade speculated that the order of the Soviet players seemed as if it were arranged so that they would play against opponents whom they had a history of beating, such as in the annual
USSR versus Yugoslavia matches. For instance, ex-world champion
Mikhail Botvinnik was below
Efim Geller and
Mark Taimanov. The lineup matched Taimanov against
Wolfgang Uhlmann, whom he "used to beat as he liked" and Botvinnik against
Milan Matulović, who admitted to having a "Botvinnik complex", not playing well against him. People also questioned
Paul Keres being on board 10, and wondered if his opponent being
Borislav Ivkov had something to do with it. These suspicions were printed in Belgrade newspapers and the Russians replied with their reason for their team's selection: Current
World Champion Boris Spassky must be first and his predecessor
Tigran Petrosian must be second. Next comes
Viktor Korchnoi, who played in the candidate's final match. Next came four players (
Lev Polugaevsky, Geller,
Vasily Smyslov, and Taimanov) who earned the right to play in the next
Interzonal because of their place in the
USSR Championship. The last three places were given to players of special merit – Botvinnik,
Mikhail Tal, and Keres. The first reserve was
Leonid Stein, who placed sixth in the USSR Championship, just behind those going to the Interzonal. The second reserve was
David Bronstein, who once played in a world championship match . On paper, the match looked daunting for the World team as they were up against five world champions and a number of other players who had achieved good results in
Candidates Tournaments. However, a terrific display of defiance from the World's top four boards almost tipped the balance and in the end, it was only the Soviets' strength in depth that won the day, by the narrowest of margins.
Lajos Portisch contributed a plus score for his side, but he incurred the wrath of Fischer when, in the last round, he inadvertently conceded a
draw to Korchnoi by threefold repetition in a won position . (See Threefold repetition#Portisch vs. Korchnoi, 1970). The game was regarded by many as crucial in determining the final match result, since the match would have been tied if Portisch had won the game. The Rest of the World team were also hindered by
Samuel Reshevsky being unable to play his final round game against Smyslov because it fell on the
Jewish Sabbath. His replacement,
Fridrik Olafsson, was defeated. Two additional reserves,
David Bronstein (USSR) and the West German
Klaus Darga (Rest of the World), were not required. Mikhail Tal's verdict in
64 (No. 17): "We won, but there are some reasons for concern: why are the foreign players making faster progress — at least in outward appearance? Why is the average age of our opponents lower than that of our national team? Why was there only one really strong chess tournament in the Soviet Union during the last years?"
Individual results, board by board Final score –
USSR 20½ versus 19½ Rest of the World ==Second match, London 1984==