World Chess Championship 1966
{{Short description|Chess match between Tigran Petrosian and Boris Spassky}}
{{Infobox chess match
|header = World Chess Championship 1966
|comp1 = Tigran Petrosian
|comp2 = Boris Spassky
|comp1_link = Tigran Petrosian
|comp2_link = Boris Spassky
|image1 = File:Tigran Petrosian 1973.2.jpg
|image2 = File:IBM-schaaktoernooi, Amsterdam Boris Spasski aan bord, Bestanddeelnr 923-6852.jpg
|title1 = Defending champion
|title2 =
Challenger
|flag1 = URS
|flag2 = URS
|dob1 = 17 June 1929
|age1 = 36 years old
|dob2 = 30 January 1937
|age2 = 29 years old
|qual1 = Winner of the 1963 World Chess Championship
|qual2 = Winner of the 1965 Candidates Tournament
|elo1 =
|elo2 =
|rank1 =
|rank2 =
|prev = 1963
|prev_link = World Chess Championship 1963
|next = 1969
|next_link = World Chess Championship 1969
|score1 = 12½
|score2 = 11½
}}
A World Chess Championship was played between Tigran Petrosian and Boris Spassky in Moscow from April 9 to June 9, 1966. Petrosian won.
1964 Interzonal Tournament
File:Tal, Smyslov, Euwe interzonal 1964.jpg]]
An interzonal tournament was held in Amsterdam in the Netherlands in May and June 1964. Six spots in the Candidates tournament were on the line.
:
| class="wikitable"
|+ 1964 Interzonal Tournament | ||||||||||||||||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | Total | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| style="background:#ccffcc;"
| 1 | align=left|{{flagathlete|Vasily Smyslov|Soviet Union}} | – | ½ | ½ | ½ | ½ | ½ | ½ | ½ | 1 | 1 | 1 | 1 | ½ | 1 | ½ | ½ | ½ | ½ | 1 | 1 | 1 | 1 | 1 | 1 | 17 |
| style="background:#ccffcc;"
| 2 | align=left|{{flagathlete|Bent Larsen|Denmark}} | ½ | – | 1 | ½ | 0 | 1 | 0 | ½ | 1 | ½ | 1 | 1 | 1 | ½ | ½ | ½ | 1 | 1 | ½ | 1 | 1 | 1 | 1 | 1 | 17 |
| style="background:#ccffcc;"
| 3 | {{flagathlete|Boris Spassky|Soviet Union}} | ½ | 0 | – | ½ | ½ | ½ | ½ | 1 | 1 | 1 | 0 | ½ | 1 | ½ | 1 | 1 | ½ | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 17 |
| style="background:#ccffcc;"
| 4 | align=left|{{flagathlete|Mikhail Tal|Soviet Union}} | ½ | ½ | ½ | – | ½ | ½ | ½ | ½ | ½ | ½ | ½ | ½ | 1 | 1 | 1 | 1 | ½ | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 17 |
| 5 | align=left|{{flagathlete|Leonid Stein|Soviet Union}} | ½ | 1 | ½ | ½ | – | 0 | 1 | ½ | 0 | 1 | ½ | 1 | ½ | 1 | 1 | 1 | 1 | ½ | ½ | ½ | 1 | 1 | 1 | 1 | 16½ |
| 6 | align=left|{{flagathlete|David Bronstein|Soviet Union}} | ½ | 0 | ½ | ½ | 1 | – | ½ | ½ | ½ | ½ | 1 | ½ | ½ | 1 | ½ | ½ | 1 | 1 | 1 | ½ | 1 | 1 | 1 | 1 | 16 |
| style="background:#ccffcc;"
| 7 | align=left|{{flagathlete|Borislav Ivkov|Yugoslavia}} | ½ | 1 | ½ | ½ | 0 | ½ | – | ½ | ½ | ½ | 0 | 1 | 1 | ½ | ½ | ½ | ½ | 1 | 1 | 1 | ½ | 1 | 1 | 1 | 15 |
| 8 | align=left|{{flagathlete|Samuel Reshevsky|United States}} | ½ | ½ | 0 | ½ | ½ | ½ | ½ | – | ½ | ½ | ½ | ½ | ½ | 1 | ½ | ½ | 1 | ½ | ½ | 1 | 1 | 1 | 1 | 1 | 14½ |
| style="background:#ccffcc;"
| 9 | align=left|{{flagathlete|Lajos Portisch|Hungary}} | 0 | 0 | 0 | ½ | 1 | ½ | ½ | ½ | – | ½ | 0 | ½ | ½ | 1 | 1 | 1 | ½ | 1 | ½ | 1 | 1 | 1 | 1 | 1 | 14½ |
| 10 | align=left|{{flagathlete|Svetozar Gligorić|Yugoslavia}} | 0 | ½ | 0 | ½ | 0 | ½ | ½ | ½ | ½ | – | ½ | 1 | 1 | ½ | 1 | ½ | 1 | ½ | 1 | 1 | 0 | 1 | 1 | 1 | 14 |
| 11 | align=left|{{flagathlete|Klaus Darga|West Germany}} | 0 | 0 | 1 | ½ | ½ | 0 | 1 | ½ | 1 | ½ | – | 0 | ½ | 1 | ½ | 1 | ½ | ½ | 1 | 1 | ½ | ½ | 1 | ½ | 13½ |
| 12 | align=left|{{flagathlete|Levente Lengyel|Hungary}} | 0 | 0 | ½ | ½ | 0 | ½ | 0 | ½ | ½ | 0 | 1 | – | ½ | ½ | 1 | ½ | 1 | ½ | ½ | 1 | 1 | 1 | 1 | 1 | 13 |
| 13 | {{flagathlete|Luděk Pachman|Czechoslovakia}} | ½ | 0 | 0 | 0 | ½ | ½ | 0 | ½ | ½ | 0 | ½ | ½ | – | ½ | 1 | ½ | 1 | 1 | 1 | 1 | 1 | 1 | ½ | ½ | 12½ |
| 14 | {{flagathlete|Larry Evans|United States}} | 0 | ½ | ½ | 0 | 0 | 0 | ½ | 0 | 0 | ½ | 0 | ½ | ½ | – | 1 | ½ | 0 | 1 | 1 | 1 | ½ | ½ | 1 | ½ | 10 |
| 15 | {{flagathlete|Georgi Tringov|Bulgaria|1946}} | ½ | ½ | 0 | 0 | 0 | ½ | ½ | ½ | 0 | 0 | ½ | 0 | 0 | 0 | – | ½ | 1 | ½ | ½ | 1 | ½ | ½ | 1 | 1 | 9½ |
| 16 | {{flagathlete|Pal Benko|United States}} | ½ | ½ | 0 | 0 | 0 | ½ | ½ | ½ | 0 | ½ | 0 | ½ | ½ | ½ | ½ | – | ½ | 0 | 1 | 0 | 1 | ½ | ½ | ½ | 9 |
| 17 | {{flagathlete|Héctor Rossetto|Argentina|alt}} | ½ | 0 | ½ | ½ | 0 | 0 | ½ | 0 | ½ | 0 | ½ | 0 | 0 | 1 | 0 | ½ | – | ½ | ½ | ½ | 0 | 1 | 0 | 1 | 8 |
| 18 | {{flagathlete|Alberto Foguelman|Argentina|alt}} | ½ | 0 | 0 | 0 | ½ | 0 | 0 | ½ | 0 | ½ | ½ | ½ | 0 | 0 | ½ | 1 | ½ | – | 0 | 0 | 1 | 1 | 0 | 1 | 8 |
| 19 | {{flagathlete|István Bilek|Hungary}} | 0 | ½ | 0 | 0 | ½ | 0 | 0 | ½ | ½ | 0 | 0 | ½ | 0 | 0 | ½ | 0 | ½ | 1 | – | ½ | 1 | 1 | ½ | ½ | 8 |
| 20 | {{flagathlete|Oscar Quiñones|Peru}} | 0 | 0 | 0 | 0 | ½ | ½ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | ½ | 1 | ½ | – | ½ | 1 | ½ | 1 | 7 |
| 21 | {{flagathlete|Yosef Porat|Israel}} | 0 | 0 | 0 | 0 | 0 | 0 | ½ | 0 | 0 | 1 | ½ | 0 | 0 | ½ | ½ | 0 | 1 | 0 | 0 | ½ | – | 0 | ½ | ½ | 5½ |
| 22 | {{flagathlete|Francisco José Pérez|Cuba}} | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ½ | 0 | 0 | ½ | ½ | ½ | 0 | 0 | 0 | 0 | 1 | – | 1 | 1 | 5 |
| 23 | {{flagathlete|Béla Berger|Australia}} | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ½ | 0 | 0 | ½ | 1 | 1 | ½ | ½ | ½ | 0 | – | 0 | 4½ |
| 24 | {{flagathlete|Zvonko Vranesic|Canada}} | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ½ | 0 | ½ | ½ | 0 | ½ | 0 | 0 | ½ | 0 | ½ | 0 | 1 | – | 4 |
Since FIDE rules only allowed a maximum of three players from the same nation to qualify from the interzonal, Stein and Bronstein were ineligible. Instead Ivkov qualified. The sixth and final place in the Candidates Tournament was decided in a 4-game playoff in which Portisch beat Reshevsky 2½–½.
Bobby Fischer, the winner of the previous Interzonal in 1962, declined his invitation, despite qualifying by winning the 1963–64 US Championship.Frank Brady, Profile of a Prodigy (2nd ed.). David McKay. OCLC 724113, pp. 80–81
1965 Candidates matches
After the controversy surrounding the previous Candidates tournament, the 1965 tournament was the first to be played as a knock-out series of matches.
Two players were seeded directly into the tournament: Mikhail Botvinnik (loser of the last championship match) and Paul Keres (2nd place in the 1962 Candidates). Botvinnik declined, and his place was taken by Efim Geller, who finished 3rd in the 1962 Candidates.
{{8TeamBracket-info
| team-width=12em
| RD1T1-loc=Riga, Apr 1965
| RD1-team1={{flagicon|URS}} Boris Spassky
| RD1-score1=6
| RD1-team2={{flagicon|URS}} Paul Keres
| RD1-score2=4
| RD1T2-loc=Moscow, Apr 1965
| RD1-team3={{flagicon|URS}} Vasily Smyslov
| RD1-score3=2½
| RD1-team4={{flagicon|URS}} Efim Geller
| RD1-score4=5½
| RD1T3-loc=Bled, June–July 1965
| RD1-team5={{flagicon|DEN}} Bent Larsen
| RD1-score5=5½
| RD1-team6={{flagicon|YUG}} Borislav Ivkov
| RD1-score6=2½
| RD1T4-loc=Bled, June–July 1965
| RD1-team7={{flagicon|HUN}} Lajos Portisch
| RD1-score7=2½
| RD1-team8={{flagicon|URS}} Mikhail Tal
| RD1-score8=5½
| RD2T1-loc=Riga, May–June 1965
| RD2-team1={{flagicon|URS}} Boris Spassky
| RD2-score1=5½
| RD2-team2={{flagicon|URS}} Efim Geller
| RD2-score2=2½
| RD2T2-loc=Bled, July–Aug 1965
| RD2-team3={{flagicon|DEN}} Bent Larsen
| RD2-score3=4½
| RD2-team4={{flagicon|URS}} Mikhail Tal
| RD2-score4=5½
| RD3T1-loc=Tbilisi, Nov 1965
| RD3-team1={{flagicon|URS}} Boris Spassky
| RD3-score1=7
| RD3-team2={{flagicon|URS}} Mikhail Tal
| RD3-score2=4
| RD3T2-loc=Copenhagen, Mar 1966
| RD3-team3={{flagicon|DEN}} Bent Larsen
| RD3-score3=5
| RD3-team4={{flagicon|URS}} Efim Geller
| RD3-score4=4
}}
Spassky won, earning the right to challenge champion Petrosian for the title.
Larsen and Geller played a third place playoff in Copenhagen, Denmark in March 1966. Larsen won 5–4.
1966 Championship match
The match was played as best of 24 games, with the champion (Petrosian) retaining the title in the event of a 12–12 tie.
While Petrosian retained the title with a 12–10 lead after Game 22, he and Spassky decided to play the final two games anyway.From Morphy to Fischer (Batsford, 1973), Israel Horowitz, p.231
This was the first World Chess Championship match since 1934 in which the reigning World Chess Champion defeated his opponent.
| class="wikitable" style="text-align:center"
|+World Chess Championship Match 1966{{cite web|url=http://www.chessgames.com/perl/chess.pl?tid=54395|title=Petrosian vs Spassky 1966|access-date=1 July 2016}} | |||||||||||||||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | Points | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| align=left | {{flagathlete|Tigran Petrosian|Soviet Union}}
|style="background:black; color:white"| ½ | ½ | style="background:black; color:white"| ½ | ½ | style="background:black; color:white"| ½ | ½ | style="background:black; color:white"| 1 | ½ | style="background:black; color:white"| ½ | 1 | style="background:black; color:white"| ½ | ½ | style="background:black; color:white"| 0 | ½ | style="background:black; color:white"| ½ | ½ | style="background:black; color:white"| ½ | ½ | style="background:black; color:white"| 0 | 1 | style="background:black; color:white"| ½ | 1 | style="background:black; color:white"| 0 | ½ | 12½ | |
| align=left | {{flagathlete|Boris Spassky|Soviet Union}}
| ½ | style="background:black; color:white"| ½ | ½ | style="background:black; color:white"| ½ | ½ | style="background:black; color:white"| ½ | 0 | style="background:black; color:white"| ½ | ½ | style="background:black; color:white"| 0 | ½ | style="background:black; color:white"| ½ | 1 | style="background:black; color:white"| ½ | ½ | style="background:black; color:white"| ½ | ½ | style="background:black; color:white"| ½ | 1 | style="background:black; color:white"| 0 | ½ | style="background:black; color:white"| 0 | 1 | style="background:black; color:white"| ½ | 11½ |
References
{{reflist}}
External links
- [https://web.archive.org/web/20050123014353/http://members.aol.com/graemecree/chesschamps/world/world1966.htm 1966 World Chess Championship] at the Internet Archive record of Graeme Cree's Chess Pages
{{Chess}}
{{World Chess Championships|state=expanded}}