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- Checkmate patterns
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Mar del Plata has a rich history of chess tournaments, including their international chess tournament and open tournament. There is also an annual city tournament, which had its first edition in 1946, and reached its 62nd edition in 2007.
The international tournament started off in 1928, but only in the period from 1941 to 1970 was it a truly international tournament with considerable reputation. After 1970, only seven international tournaments have been played. The 1951, 1954, 1969 and 2001 editions were zonal tournaments. There was also a zonal tournament for women in Mar del Plata, in 1969, won by the Brazilian Ruth Cardoso. Silvia Kot from Argentina placed second.
In 1967 the first edition of the open tournament was organized. In 1969 it became an annual event.
The Mar del Plata Variation of the King's Indian Defence (1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. 0-0 Nc6 8. d5 Ne7) is named after a game played in 1953 at the 16th international tournament between Miguel Najdorf and Svetozar Gligorić.
| # | Year | Winner |
|---|---|---|
| 1 | 1928 | Roberto Grau (Argentina) |
| 2 | 1934 | Aaron Schwartzman (Argentina) |
| 3 | 1936 | Isaias Pleci (Argentina) |
| 4 | 1941 | Gideon Ståhlberg (Sweden) |
| 5 | 1942 | Miguel Najdorf (Argentina) |
| 6 | 1943 | Miguel Najdorf (Argentina) |
| 7 | 1944 | Herman Pilnik (Argentina) Miguel Najdorf (Argentina) |
| 8 | 1945 | Miguel Najdorf (Argentina) |
| 9 | 1946 | Miguel Najdorf (Argentina) |
| 10 | 1947 | Miguel Najdorf (Argentina) |
| 11 | 1948 | Erich Eliskases (Argentina) |
| 12 | 1949 | Hector Rossetto (Argentina) |
| 13 | 1950 | Svetozar Gligorić (Yugoslavia) |
| 14 | 1951 | Julio Bolbochán (Argentina) Erich Eliskases (Argentina) |
| 15 | 1952 | Hector Rossetto (Argentina) Julio Bolbochán (Argentina) |
| 16 | 1953 | Svetozar Gligorić (Yugoslavia) |
| 17 | 1954 | Oscar Panno (Argentina) |
| 18 | 1955 | Borislav Ivkov (Yugoslavia) |
| 19 | 1956 | Julio Bolbochán (Argentina) Miguel Najdorf (Argentina) |
| 20 | 1957 | Paul Keres (Soviet Union) |
| 21 | 1958 | Bent Larsen (Denmark) |
| 22 | 1959 | Luděk Pachman (Czechoslovakia) Miguel Najdorf (Argentina) |
| 23 | 1960 | Boris Spassky (Soviet Union) Robert Fischer (United States) |
| 24 | 1961 | Miguel Najdorf (Argentina) |
| 25 | 1962 | Lev Polugaevsky (Soviet Union) |
| 26 | 1965 | Miguel Najdorf (Argentina) |
| 27 | 1966 | Vasily Smyslov (Soviet Union) |
| 28 | 1969 | Oscar Panno (Argentina) Miguel Najdorf (Argentina) |
| 29 | 1971 | Lev Polugaevsky (Soviet Union) |
| 30 | 1976 | Raúl Sanguinetti (Argentina) Victor Brond (Argentina) |
| 31 | 1982 | Jan Timman (Netherlands) |
| 32 | 1989 | Marcelo Tempone (Argentina) |
| 33 | 1990 | Marino Alejandro Cid (Argentina) |
| 34 | 1997 | Fernando Braga (Italy) |
| 35 | 2001 | Juan Facundo Pierrot (Argentina) Ruben Felgaer (Argentina) |
| # | Year | Winner |
|---|---|---|
| 1 | 1960 | Cristobal Dominguez (Argentina) |
| 1 | 1961 | Cristobal Dominguez (Argentina) |
| 1 | 1963 | Cristobal Dominguez (Argentina) |
| 1 | 1967 | Miguel Najdorf (Argentina) |
| 2 | 1969 | René Letelier (Chile) |
| 3 | 1970 | Lothar Schmid (Germany) |
| 4 | 1971 | Raúl Ocampo (Argentina) |
| 5 | 1972 | Jorge Rubinetti (Argentina) |
| 6 | 1973 | Lothar Schmid (Germany) |
| 7 | 1974 | Miguel Najdorf (Argentina) |
| 8 | 1975 | Jaime Emma (Argentina) |
| 9 | 1976 | Aldo Seidler (Argentina) |
| 10 | 1977 | Ricardo Poleschi (Argentina) |
| 11 | 1978 | Aldo Seidler (Argentina) |
| 12 | 1979 | Miguel Najdorf (Argentina) |
| 13 | 1980 | Carlos Lago (Argentina) |
| 14 | 1983 | Luis Bronstein (Argentina) |
| 15 | 1984 | Marcelo Tempone (Argentina) |
| 16 | 1985 | Jorge Rubinetti (Argentina) |
| 17 | 1986 | Oscar Panno (Argentina) |
| 18 | 1987 | Roberto Cifuentes (Chile) |
| 19 | 1988 | Oscar Panno (Argentina) |
| 20 | 1989 | Pablo Zarnicki (Argentina) |
| 21 | 1990 | Roberto Cifuentes (Chile) |
| 22 | 1991 | Marcelo Tempone (Argentina) |
| 23 | 1992 | Sergio Giardelli (Argentina) |
| 24 | 1993 | Bent Larsen (Denmark) Julio Granda (Peru) |
| 25 | 1994 | Oscar Panno (Argentina) |
| 26 | 1995 | Sergio Slipak (Argentina) |
| 27 | 1996 | Fabian Fiorito (Argentina) |
| 28 | 1997 | Fernando Braga (Italy) |
| 29 | 1998 | Alfredo Giaccio (Argentina) |
| 30 | 1999 | Sergio Slipak (Argentina) |
| 31 | 2000 | Martín Labollita (Argentina) |
| 32 | 2001 | Sergio Slipak (Argentina) |
| 33 | 2002 | Fabián Fiorito (Argentina) |
| 34 | 2003 | Suat Atalık (Bosnia and Herzegovina) |
| 35 | 2004 | Pablo Lafuente (Argentina) |
| 36 | 2005 | José F. Cubas (Paraguay) |
| 37 | 2006 | Diego Flores (Argentina) |
| 38 | 2007 | Andrés Rodríguez (Uruguay) |