Difference between revisions of "IMO Problems and Solutions, with authors"

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This page lists the authors of the problems of the [[International Mathematical Olympiad|IMO]].
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#REDIRECT [[IMO Problems and Solutions]]
 
 
== 1959 ==
 
 
 
* [[1959 IMO]] (in Romania)
 
* [[1959 IMO Problems]]
 
* [[1959 IMO Problems/Problem 1 | Problem 1]] proposed by Poland
 
* [[1959 IMO Problems/Problem 2 | Problem 2]] proposed by Constantin Ionescu-Tiu, Romania
 
* [[1959 IMO Problems/Problem 3 | Problem 3]] proposed by Hungary
 
* [[1959 IMO Problems/Problem 4 | Problem 4]] proposed by Hungary
 
* [[1959 IMO Problems/Problem 5 | Problem 5]] proposed by Cezar Cosnita, Romania
 
* [[1959 IMO Problems/Problem 6 | Problem 6]] proposed by Czechoslovakia
 
 
 
== 1960 ==
 
 
 
* [[1960 IMO]] (in Romania)
 
* [[1960 IMO Problems]]
 
* [[1960 IMO Problems/Problem 1 | Problem 1]] proposed by Bulgaria
 
* [[1960 IMO Problems/Problem 2 | Problem 2]] proposed by Hungary
 
* [[1960 IMO Problems/Problem 3 | Problem 3]] proposed by Gh. D. Simionescu, Romania
 
* [[1960 IMO Problems/Problem 4 | Problem 4]] proposed by Hungary
 
* [[1960 IMO Problems/Problem 5 | Problem 5]] proposed by Czechoslovakia
 
* [[1960 IMO Problems/Problem 6 | Problem 6]] proposed by Bulgaria
 
* [[1960 IMO Problems/Problem 7 | Problem 7]] proposed by East Germany
 
 
 
== 1961 ==
 
 
 
* [[1961 IMO]] (in Hungary)
 
* [[1961 IMO Problems]]
 
* [[1961 IMO Problems/Problem 1 | Problem 1]] proposed by Hungary
 
* [[1961 IMO Problems/Problem 2 | Problem 2]] proposed by Poland
 
* [[1961 IMO Problems/Problem 3 | Problem 3]] proposed by Bulgaria
 
* [[1961 IMO Problems/Problem 4 | Problem 4]] proposed by East Germany
 
* [[1961 IMO Problems/Problem 5 | Problem 5]] proposed by Czechoslovakia
 
* [[1961 IMO Problems/Problem 6 | Problem 6]] proposed by Gh. D. Simionescu, Romania
 
 
 
== 1962 ==
 
 
 
* [[1962 IMO]] (in Czechoslovakia)
 
* [[1962 IMO Problems]]
 
* [[1962 IMO Problems/Problem 1 | Problem 1]] proposed by Poland
 
* [[1962 IMO Problems/Problem 2 | Problem 2]] proposed by Hungary
 
* [[1962 IMO Problems/Problem 3 | Problem 3]] proposed by Czechoslovakia
 
* [[1962 IMO Problems/Problem 4 | Problem 4]] proposed by Cezar Cosnita, Romania
 
* [[1962 IMO Problems/Problem 5 | Problem 5]] proposed by Bulgaria
 
* [[1962 IMO Problems/Problem 6 | Problem 6]] proposed by East Germany
 
* [[1962 IMO Problems/Problem 7 | Problem 7]] proposed by USSR
 
 
 
== 1963 ==
 
 
 
* [[1963 IMO]] (in Poland)
 
* [[1963 IMO Problems]]
 
* [[1963 IMO Problems/Problem 1 | Problem 1]] proposed by Czechoslovakia
 
* [[1963 IMO Problems/Problem 2 | Problem 2]] proposed by USSR
 
* [[1963 IMO Problems/Problem 3 | Problem 3]] proposed by Hungary
 
* [[1963 IMO Problems/Problem 4 | Problem 4]] proposed by USSR
 
* [[1963 IMO Problems/Problem 5 | Problem 5]] proposed by Wolfgang Engel, East Germany
 
* [[1963 IMO Problems/Problem 6 | Problem 6]] proposed by Hungary
 
 
 
== 1964 ==
 
 
 
* [[1964 IMO]] (in USSR)
 
* [[1964 IMO Problems]]
 
* [[1964 IMO Problems/Problem 1 | Problem 1]] proposed by Czechoslovakia
 
* [[1964 IMO Problems/Problem 2 | Problem 2]] proposed by Hungary
 
* [[1964 IMO Problems/Problem 3 | Problem 3]] proposed by Yugoslavia
 
* [[1964 IMO Problems/Problem 4 | Problem 4]] proposed by Hungary
 
* [[1964 IMO Problems/Problem 5 | Problem 5]] proposed by Gh. D. Simionescu, Romania
 
* [[1964 IMO Problems/Problem 6 | Problem 6]] proposed by Poland
 
 
 
== 1965 ==
 
 
 
* [[1965 IMO]] (in East Germany)
 
* [[1965 IMO Problems]]
 
* [[1965 IMO Problems/Problem 1 | Problem 1]] proposed by Yugoslavia
 
* [[1965 IMO Problems/Problem 2 | Problem 2]] proposed by Poland
 
* [[1965 IMO Problems/Problem 3 | Problem 3]] proposed by Czechoslovakia
 
* [[1965 IMO Problems/Problem 4 | Problem 4]] proposed by USSR
 
* [[1965 IMO Problems/Problem 5 | Problem 5]] proposed by Gh. D. Simionescu, Romania
 
* [[1965 IMO Problems/Problem 6 | Problem 6]] proposed by Poland
 
 
 
== 1966 ==
 
 
 
* [[1966 IMO]] (in Bulgaria)
 
* [[1966 IMO Problems]]
 
* [[1966 IMO Problems/Problem 1 | Problem 1]] proposed by USSR
 
* [[1966 IMO Problems/Problem 2 | Problem 2]] proposed by Hungary
 
* [[1966 IMO Problems/Problem 3 | Problem 3]] proposed by Bulgaria
 
* [[1966 IMO Problems/Problem 4 | Problem 4]] proposed by Yugoslavia
 
* [[1966 IMO Problems/Problem 5 | Problem 5]] proposed by Czechoslovakia
 
* [[1966 IMO Problems/Problem 6 | Problem 6]] proposed by Poland
 
 
 
== 1967 ==
 
 
 
* [[1967 IMO]] (in Yugoslavia)
 
* [[1967 IMO Problems]]
 
* [[1967 IMO Problems/Problem 1 | Problem 1]] proposed by Poland
 
* [[1967 IMO Problems/Problem 2 | Problem 2]] proposed by Czechoslovakia
 
* [[1967 IMO Problems/Problem 3 | Problem 3]] proposed by United Kingdom
 
* [[1967 IMO Problems/Problem 4 | Problem 4]] proposed by Tullio Viola, Italy
 
* [[1967 IMO Problems/Problem 5 | Problem 5]] proposed by USSR
 
* [[1967 IMO Problems/Problem 6 | Problem 6]] proposed by Hungary
 
 
 
== 1968 ==
 
 
 
* [[1968 IMO]] (in USSR)
 
* [[1968 IMO Problems]]
 
* [[1968 IMO Problems/Problem 1 | Problem 1]] proposed by Unknown Author, Romania (taken from a Romanian problem book)
 
* [[1968 IMO Problems/Problem 2 | Problem 2]] proposed by Czechoslovakia
 
* [[1968 IMO Problems/Problem 3 | Problem 3]] proposed by Bulgaria
 
* [[1968 IMO Problems/Problem 4 | Problem 4]] proposed by Poland
 
* [[1968 IMO Problems/Problem 5 | Problem 5]] proposed by East Germany
 
* [[1968 IMO Problems/Problem 6 | Problem 6]] proposed by United Kingdom
 
 
 
== 1969 ==
 
 
 
* [[1969 IMO]] (in Romania)
 
* [[1969 IMO Problems]]
 
* [[1969 IMO Problems/Problem 1 | Problem 1]] proposed by Wolfgang Engel, East Germany
 
* [[1969 IMO Problems/Problem 2 | Problem 2]] proposed by Hungary
 
* [[1969 IMO Problems/Problem 3 | Problem 3]] proposed by Poland
 
* [[1969 IMO Problems/Problem 4 | Problem 4]] proposed by Netherlands
 
* [[1969 IMO Problems/Problem 5 | Problem 5]] proposed by A. Mekei, Mongolia
 
* [[1969 IMO Problems/Problem 6 | Problem 6]] proposed by USSR
 
 
 
== 1970 ==
 
 
 
* [[1970 IMO]] (in Hungary)
 
* [[1970 IMO Problems]]
 
* [[1970 IMO Problems/Problem 1 | Problem 1]] proposed by Poland
 
* [[1970 IMO Problems/Problem 2 | Problem 2]] proposed by Dumitru Batinetzu, Romania
 
* [[1970 IMO Problems/Problem 3 | Problem 3]] proposed by Åke Samuelsson, Sweden
 
* [[1970 IMO Problems/Problem 4 | Problem 4]] proposed by Czechoslovakia
 
* [[1970 IMO Problems/Problem 5 | Problem 5]] proposed by Bulgaria
 
* [[1970 IMO Problems/Problem 6 | Problem 6]] proposed by USSR
 
 
 
== 1971 ==
 
 
 
* [[1971 IMO]] (in Czechoslovakia)
 
* [[1971 IMO Problems]]
 
* [[1971 IMO Problems/Problem 1 | Problem 1]] proposed by Hungary
 
* [[1971 IMO Problems/Problem 2 | Problem 2]] proposed by USSR
 
* [[1971 IMO Problems/Problem 3 | Problem 3]] proposed by Poland
 
* [[1971 IMO Problems/Problem 4 | Problem 4]] proposed by Netherlands
 
* [[1971 IMO Problems/Problem 5 | Problem 5]] proposed by Bulgaria
 
* [[1971 IMO Problems/Problem 6 | Problem 6]] proposed by Sweden
 
 
 
== 1972 ==
 
 
 
* [[1972 IMO]] (in Poland)
 
* [[1972 IMO Problems]]
 
* [[1972 IMO Problems/Problem 1 | Problem 1]] proposed by USSR
 
* [[1972 IMO Problems/Problem 2 | Problem 2]] proposed by Netherlands
 
* [[1972 IMO Problems/Problem 3 | Problem 3]] proposed by United Kingdom
 
* [[1972 IMO Problems/Problem 4 | Problem 4]] proposed by Netherlands
 
* [[1972 IMO Problems/Problem 5 | Problem 5]] proposed by Bulgaria
 
* [[1972 IMO Problems/Problem 6 | Problem 6]] proposed by United Kingdom
 
 
 
== 1973 ==
 
 
 
* [[1973 IMO]] (in USSR)
 
* [[1973 IMO Problems]]
 
* [[1973 IMO Problems/Problem 1 | Problem 1]] proposed by Czechoslovakia
 
* [[1973 IMO Problems/Problem 2 | Problem 2]] proposed by Poland
 
* [[1973 IMO Problems/Problem 3 | Problem 3]] proposed by Åke Samuelsson, Sweden
 
* [[1973 IMO Problems/Problem 4 | Problem 4]] proposed by Yugoslavia
 
* [[1973 IMO Problems/Problem 5 | Problem 5]] proposed by Poland
 
* [[1973 IMO Problems/Problem 6 | Problem 6]] proposed by Åke Samuelsson, Sweden
 
 
 
== 1974 ==
 
 
 
* [[1974 IMO]] (in East Germany)
 
* [[1974 IMO Problems]]
 
* [[1974 IMO Problems/Problem 1 | Problem 1]] proposed by Murray Klamkin, USA
 
* [[1974 IMO Problems/Problem 2 | Problem 2]] proposed by Matti Lehtinen, Finland
 
* [[1974 IMO Problems/Problem 3 | Problem 3]] proposed by Ciprian Borcea, Romania
 
* [[1974 IMO Problems/Problem 4 | Problem 4]] proposed by Bulgaria
 
* [[1974 IMO Problems/Problem 5 | Problem 5]] proposed by Jan van de Craats, Netherlands
 
* [[1974 IMO Problems/Problem 6 | Problem 6]] proposed by Sweden
 
 
 
== 1975 ==
 
 
 
* [[1975 IMO]] (in Bulgaria)
 
* [[1975 IMO Problems]]
 
* [[1975 IMO Problems/Problem 1 | Problem 1]] proposed by Czechoslovakia
 
* [[1975 IMO Problems/Problem 2 | Problem 2]] proposed by United Kingdom
 
* [[1975 IMO Problems/Problem 3 | Problem 3]] proposed by Jan van de Craats, Netherlands
 
* [[1975 IMO Problems/Problem 4 | Problem 4]] proposed by USSR
 
* [[1975 IMO Problems/Problem 5 | Problem 5]] proposed by USSR
 
* [[1975 IMO Problems/Problem 6 | Problem 6]] proposed by United Kingdom
 
 
 
== 1976 ==
 
 
 
* [[1976 IMO]] (in Austria)
 
* [[1976 IMO Problems]]
 
* [[1976 IMO Problems/Problem 1 | Problem 1]] proposed by Czechoslovakia
 
* [[1976 IMO Problems/Problem 2 | Problem 2]] proposed by Matti Lehtinen, Finland
 
* [[1976 IMO Problems/Problem 3 | Problem 3]] proposed by Jan van de Craats, Netherlands
 
* [[1976 IMO Problems/Problem 4 | Problem 4]] proposed by Murray Klamkin, USA
 
* [[1976 IMO Problems/Problem 5 | Problem 5]] proposed by Jan van de Craats, Netherlands
 
* [[1976 IMO Problems/Problem 6 | Problem 6]] proposed by United Kingdom
 
 
 
== 1977 ==
 
 
 
* [[1977 IMO]] (in Yugoslavia)
 
* [[1977 IMO Problems]]
 
* [[1977 IMO Problems/Problem 1 | Problem 1]] proposed by Jan van de Craats, Netherlands
 
* [[1977 IMO Problems/Problem 2 | Problem 2]] proposed by Phan Duc Chinh, Vietnam
 
* [[1977 IMO Problems/Problem 3 | Problem 3]] proposed by Jan van de Craats, Netherlands
 
* [[1977 IMO Problems/Problem 4 | Problem 4]] proposed by United Kingdom
 
* [[1977 IMO Problems/Problem 5 | Problem 5]] proposed by West Germany
 
* [[1977 IMO Problems/Problem 6 | Problem 6]] proposed by Ivan Prodanov, Bulgaria
 
 
 
== 1978 ==
 
 
 
* [[1978 IMO]] (in Romania)
 
* [[1978 IMO Problems]]
 
* [[1978 IMO Problems/Problem 1 | Problem 1]] proposed by Cuba
 
* [[1978 IMO Problems/Problem 2 | Problem 2]] proposed by Murray Klamkin, USA
 
* [[1978 IMO Problems/Problem 3 | Problem 3]] proposed by United Kingdom
 
* [[1978 IMO Problems/Problem 4 | Problem 4]] proposed by Murray Klamkin, USA
 
* [[1978 IMO Problems/Problem 5 | Problem 5]] proposed by France
 
* [[1978 IMO Problems/Problem 6 | Problem 6]] proposed by Jan van de Craats, Netherlands
 
 
 
== 1979 ==
 
 
 
* [[1979 IMO]] (in United Kingdom)
 
* [[1979 IMO Problems]]
 
* [[1979 IMO Problems/Problem 1 | Problem 1]] proposed by West Germany
 
* [[1979 IMO Problems/Problem 2 | Problem 2]] proposed by Nickolay Khadzhiivanov and Nedjalko Nenov, Bulgaria
 
* [[1979 IMO Problems/Problem 3 | Problem 3]] proposed by USSR
 
* [[1979 IMO Problems/Problem 4 | Problem 4]] proposed by Murray Klamkin, USA
 
* [[1979 IMO Problems/Problem 5 | Problem 5]] proposed by Israel
 
* [[1979 IMO Problems/Problem 6 | Problem 6]] proposed by West Germany
 
 
 
== 1980 ==
 
 
 
[[1980 IMO | There was no IMO in 1980]]
 
 
 
== 1981 ==
 
 
 
* [[1981 IMO]] (in USA)
 
* [[1981 IMO Problems]]
 
* [[1981 IMO Problems/Problem 1 | Problem 1]] proposed by United Kingdom
 
* [[1981 IMO Problems/Problem 2 | Problem 2]] proposed by West Germany
 
* [[1981 IMO Problems/Problem 3 | Problem 3]] proposed by Jan van de Craats, Netherlands
 
* [[1981 IMO Problems/Problem 4 | Problem 4]] proposed by Belgium
 
* [[1981 IMO Problems/Problem 5 | Problem 5]] proposed by USSR
 
* [[1981 IMO Problems/Problem 6 | Problem 6]] proposed by Juha Oikkonen, Finland
 
 
 
== 1982 ==
 
 
 
* [[1982 IMO]] (in Hungary)
 
* [[1982 IMO Problems]]
 
* [[1982 IMO Problems/Problem 1 | Problem 1]] proposed by United Kingdom
 
* [[1982 IMO Problems/Problem 2 | Problem 2]] proposed by Jan van de Craats, Netherlands
 
* [[1982 IMO Problems/Problem 3 | Problem 3]] proposed by Alexander N. Grishkov, USSR
 
* [[1982 IMO Problems/Problem 4 | Problem 4]] proposed by United Kingdom
 
* [[1982 IMO Problems/Problem 5 | Problem 5]] proposed by Jan van de Craats, Netherlands
 
* [[1982 IMO Problems/Problem 6 | Problem 6]] proposed by Van Nhu Cuong, Vietnam
 
 
 
== 1983 ==
 
 
 
* [[1983 IMO]] (in France)
 
* [[1983 IMO Problems]]
 
* [[1983 IMO Problems/Problem 1 | Problem 1]] proposed by United Kingdom
 
* [[1983 IMO Problems/Problem 2 | Problem 2]] proposed by Igor F. Sharygin, USSR
 
* [[1983 IMO Problems/Problem 3 | Problem 3]] proposed by West Germany
 
* [[1983 IMO Problems/Problem 4 | Problem 4]] proposed by Belgium
 
* [[1983 IMO Problems/Problem 5 | Problem 5]] proposed by Marcin Kuczma, Poland
 
* [[1983 IMO Problems/Problem 6 | Problem 6]] proposed by Murray Klamkin, USA
 
 
 
== 1984 ==
 
 
 
* [[1984 IMO]] (in Czechoslovakia)
 
* [[1984 IMO Problems]]
 
* [[1984 IMO Problems/Problem 1 | Problem 1]] proposed by West Germany
 
* [[1984 IMO Problems/Problem 2 | Problem 2]] proposed by Aiko Tiggelaar, Netherlands
 
* [[1984 IMO Problems/Problem 3 | Problem 3]] proposed by Ioan Tomescu, Romania
 
* [[1984 IMO Problems/Problem 4 | Problem 4]] proposed by Laurentiu Panaitopol, Romania
 
* [[1984 IMO Problems/Problem 5 | Problem 5]] proposed by Tserendorj Dashdorj, Mongolia
 
* [[1984 IMO Problems/Problem 6 | Problem 6]] proposed by Poland
 
 
 
== 1985 ==
 
 
 
* [[1985 IMO]] (in Finland)
 
* [[1985 IMO Problems]]
 
* [[1985 IMO Problems/Problem 1 | Problem 1]] proposed by United Kingdom
 
* [[1985 IMO Problems/Problem 2 | Problem 2]] proposed by George Szekeres, Australia
 
* [[1985 IMO Problems/Problem 3 | Problem 3]] proposed by Jan van de Craats, Netherlands
 
* [[1985 IMO Problems/Problem 4 | Problem 4]] proposed by R. Gonchigdorj, Mongolia
 
* [[1985 IMO Problems/Problem 5 | Problem 5]] proposed by USSR
 
* [[1985 IMO Problems/Problem 6 | Problem 6]] proposed by Åke Samuelsson, Sweden
 
 
 
== 1986 ==
 
 
 
* [[1986 IMO]] (in Poland)
 
* [[1986 IMO Problems]]
 
* [[1986 IMO Problems/Problem 1 | Problem 1]] proposed by West Germany
 
* [[1986 IMO Problems/Problem 2 | Problem 2]] proposed by Gengzhe Chang and Dongxu Qi, China
 
* [[1986 IMO Problems/Problem 3 | Problem 3]] proposed by Elias Wegert, East Germany
 
* [[1986 IMO Problems/Problem 4 | Problem 4]] proposed by Sven Sigurðsson, Iceland
 
* [[1986 IMO Problems/Problem 5 | Problem 5]] proposed by United Kingdom
 
* [[1986 IMO Problems/Problem 6 | Problem 6]] proposed by Konrad Engel, East Germany
 
 
 
== 1987 ==
 
 
 
* [[1987 IMO]] (in Cuba)
 
* [[1987 IMO Problems]]
 
* [[1987 IMO Problems/Problem 1 | Problem 1]] proposed by Horst Sewerin, West Germany
 
* [[1987 IMO Problems/Problem 2 | Problem 2]] proposed by I.A. Kushnir, USSR
 
* [[1987 IMO Problems/Problem 3 | Problem 3]] proposed by Arthur Engel, West Germany
 
* [[1987 IMO Problems/Problem 4 | Problem 4]] proposed by Nguyen Minh Duc, Vietnam
 
* [[1987 IMO Problems/Problem 5 | Problem 5]] proposed by East Germany
 
* [[1987 IMO Problems/Problem 6 | Problem 6]] proposed by Vsevolod F. Lev, USSR
 
 
 
== 1988 ==
 
 
 
* [[1988 IMO]] (in Australia)
 
* [[1988 IMO Problems]]
 
* [[1988 IMO Problems/Problem 1 | Problem 1]] proposed by Lucien Kieffer, Luxembourg
 
* [[1988 IMO Problems/Problem 2 | Problem 2]] proposed by Czechoslovakia
 
* [[1988 IMO Problems/Problem 3 | Problem 3]] proposed by United Kingdom
 
* [[1988 IMO Problems/Problem 4 | Problem 4]] proposed by Finbarr Holland, Ireland
 
* [[1988 IMO Problems/Problem 5 | Problem 5]] proposed by Dimitris Kontogiannis, Greece
 
* [[1988 IMO Problems/Problem 6 | Problem 6]] proposed by Stephan Beck, West Germany
 
 
 
== 1989 ==
 
 
 
* [[1989 IMO]] (in West Germany)
 
* [[1989 IMO Problems]]
 
* [[1989 IMO Problems/Problem 1 | Problem 1]] proposed by Philippines
 
* [[1989 IMO Problems/Problem 2 | Problem 2]] proposed by Esther Szekeres, Australia
 
* [[1989 IMO Problems/Problem 3 | Problem 3]] proposed by Harm Derksen, Netherlands
 
* [[1989 IMO Problems/Problem 4 | Problem 4]] proposed by Eggert Briem, Iceland
 
* [[1989 IMO Problems/Problem 5 | Problem 5]] proposed by Bernt Lindström, Sweden
 
* [[1989 IMO Problems/Problem 6 | Problem 6]] proposed by Marcin Kuczma, Poland
 
 
 
== 1990 ==
 
 
 
* [[1990 IMO]] (in China)
 
* [[1990 IMO Problems]]
 
* [[1990 IMO Problems/Problem 1 | Problem 1]] proposed by C.R. Pranesachar, India
 
* [[1990 IMO Problems/Problem 2 | Problem 2]] proposed by Pavol Černek, Czechoslovakia
 
* [[1990 IMO Problems/Problem 3 | Problem 3]] proposed by Laurentiu Panaitopol, Romania
 
* [[1990 IMO Problems/Problem 4 | Problem 4]] proposed by Albert Erkip, Turkey
 
* [[1990 IMO Problems/Problem 5 | Problem 5]] proposed by West Germany
 
* [[1990 IMO Problems/Problem 6 | Problem 6]] proposed by Harm Derksen, Netherlands
 
 
 
== 1991 ==
 
 
 
* [[1991 IMO]] (in Sweden)
 
* [[1991 IMO Problems]]
 
* [[1991 IMO Problems/Problem 1 | Problem 1]] proposed by USSR
 
* [[1991 IMO Problems/Problem 2 | Problem 2]] proposed by Laurentiu Panaitopol, Romania
 
* [[1991 IMO Problems/Problem 3 | Problem 3]] proposed by Chengzhang Li, China
 
* [[1991 IMO Problems/Problem 4 | Problem 4]] proposed by Cecil Rousseau, USA
 
* [[1991 IMO Problems/Problem 5 | Problem 5]] proposed by Johan Yebbou, France
 
* [[1991 IMO Problems/Problem 6 | Problem 6]] proposed by Harm Derksen, Netherlands
 
 
 
== 1992 ==
 
 
 
* [[1992 IMO]] (in Russia)
 
* [[1992 IMO Problems]]
 
* [[1992 IMO Problems/Problem 1 | Problem 1]] proposed by Achim Zulauf, New Zealand
 
* [[1992 IMO Problems/Problem 2 | Problem 2]] proposed by Belur Jana Venkatachala, India
 
* [[1992 IMO Problems/Problem 3 | Problem 3]] proposed by Chengzhang Li, China
 
* [[1992 IMO Problems/Problem 4 | Problem 4]] proposed by Johan Yebbou, France
 
* [[1992 IMO Problems/Problem 5 | Problem 5]] proposed by Stefano Mortola, Italy
 
* [[1992 IMO Problems/Problem 6 | Problem 6]] proposed by Tony Gardiner, United Kingdom
 
 
 
== 1993 ==
 
 
 
* [[1993 IMO]] (in Turkey)
 
* [[1993 IMO Problems]]
 
* [[1993 IMO Problems/Problem 1 | Problem 1]] proposed by Tom Laffey, Ireland
 
* [[1993 IMO Problems/Problem 2 | Problem 2]] proposed by David Monk, United Kingdom
 
* [[1993 IMO Problems/Problem 3 | Problem 3]] proposed by Kerkko Luosto, Finland
 
* [[1993 IMO Problems/Problem 4 | Problem 4]] proposed by Donco Dimovski, Macedonia
 
* [[1993 IMO Problems/Problem 5 | Problem 5]] proposed by Elias Wegert, Germany
 
* [[1993 IMO Problems/Problem 6 | Problem 6]] proposed by Nicholas de Bruijn, Netherlands
 
 
 
== 1994 ==
 
 
 
* [[1994 IMO]] (in Hong Kong)
 
* [[1994 IMO Problems]]
 
* [[1994 IMO Problems/Problem 1 | Problem 1]] proposed by Vincent Lafforgue, France
 
* [[1994 IMO Problems/Problem 2 | Problem 2]] proposed by Hans Lausch, Australia and Garnik Tonoyan, Armenia (independently)
 
* [[1994 IMO Problems/Problem 3 | Problem 3]] proposed by Gabriel Istrate, Romania
 
* [[1994 IMO Problems/Problem 4 | Problem 4]] proposed by Hans Lausch, Australia
 
* [[1994 IMO Problems/Problem 5 | Problem 5]] proposed by United Kingdom
 
* [[1994 IMO Problems/Problem 6 | Problem 6]] proposed by Kerkko Luosto, Finland
 
 
 
== 1995 ==
 
 
 
* [[1995 IMO]] (in Canada)
 
* [[1995 IMO Problems]]
 
* [[1995 IMO Problems/Problem 1 | Problem 1]] proposed by Borislav Mihailov, Bulgaria
 
* [[1995 IMO Problems/Problem 2 | Problem 2]] proposed by Nazar Agakhanov, Russia
 
* [[1995 IMO Problems/Problem 3 | Problem 3]] proposed by Jaromír Šimša, Czech Republic
 
* [[1995 IMO Problems/Problem 4 | Problem 4]] proposed by Marcin Kuczma, Poland
 
* [[1995 IMO Problems/Problem 5 | Problem 5]] proposed by Alastair McNaughton, New Zealand
 
* [[1995 IMO Problems/Problem 6 | Problem 6]] proposed by Marcin Kuczma, Poland
 
 
 
== 1996 ==
 
 
 
* [[1996 IMO]] (in India)
 
* [[1996 IMO Problems]]
 
* [[1996 IMO Problems/Problem 1 | Problem 1]] proposed by Kerkko Luosto, Finland
 
* [[1996 IMO Problems/Problem 2 | Problem 2]] proposed by J.P. Grossman, Canada
 
* [[1996 IMO Problems/Problem 3 | Problem 3]] proposed by Mircea Becheanu, Romania
 
* [[1996 IMO Problems/Problem 4 | Problem 4]] proposed by Alexander S. Golovanov, Russia
 
* [[1996 IMO Problems/Problem 5 | Problem 5]] proposed by Nairi Sedrakyan, Armenia
 
* [[1996 IMO Problems/Problem 6 | Problem 6]] proposed by Laurent Rosaz, France
 
 
 
== 1997 ==
 
 
 
* [[1997 IMO]] (in Argentina)
 
* [[1997 IMO Problems]]
 
* [[1997 IMO Problems/Problem 1 | Problem 1]] proposed by Igor Voronovich, Belarus
 
* [[1997 IMO Problems/Problem 2 | Problem 2]] proposed by David Monk, United Kingdom
 
* [[1997 IMO Problems/Problem 3 | Problem 3]] proposed by Oleg Bogopolsky, Russia
 
* [[1997 IMO Problems/Problem 4 | Problem 4]] proposed by  Ebadollah S. Mahmoodian and Mohammad Mahdian, Iran
 
* [[1997 IMO Problems/Problem 5 | Problem 5]] proposed by Petr Kanovsky, Czech Republic
 
* [[1997 IMO Problems/Problem 6 | Problem 6]] proposed by Giedrius Alkauskas, Lithuania
 
 
 
== 1998 ==
 
 
 
* [[1998 IMO]] (in Taiwan)
 
* [[1998 IMO Problems]]
 
* [[1998 IMO Problems/Problem 1 | Problem 1]] proposed by Charles Leytem, Luxembourg
 
* [[1998 IMO Problems/Problem 2 | Problem 2]] proposed by R.B. Bapat, India
 
* [[1998 IMO Problems/Problem 3 | Problem 3]] proposed by Belarus
 
* [[1998 IMO Problems/Problem 4 | Problem 4]] proposed by David Monk, United Kingdom
 
* [[1998 IMO Problems/Problem 5 | Problem 5]] proposed by Ukraine
 
* [[1998 IMO Problems/Problem 6 | Problem 6]] proposed by Oleg Mushkarov and Nikolai Nikolov, Bulgaria
 
 
 
== 1999 ==
 
 
 
* [[1999 IMO]] (in Romania)
 
* [[1999 IMO Problems]]
 
* [[1999 IMO Problems/Problem 1 | Problem 1]] proposed by Jan Willemson, Estonia
 
* [[1999 IMO Problems/Problem 2 | Problem 2]] proposed by Marcin Kuczma, Poland
 
* [[1999 IMO Problems/Problem 3 | Problem 3]] proposed by E. Barabanov and Igor Voronovich, Belarus
 
* [[1999 IMO Problems/Problem 4 | Problem 4]] proposed by Liang-Ju Chu, Taiwan
 
* [[1999 IMO Problems/Problem 5 | Problem 5]] proposed by Pavel Kozhevnikov, Russia
 
* [[1999 IMO Problems/Problem 6 | Problem 6]] proposed by Tetsuya Ando, Japan
 
 
 
== 2000 ==
 
 
 
* [[2000 IMO]] (in South-Korea)
 
* [[2000 IMO Problems]]
 
* [[2000 IMO Problems/Problem 1 | Problem 1]] proposed by Sergei Berlov, Russia
 
* [[2000 IMO Problems/Problem 2 | Problem 2]] proposed by Titu Andreescu, USA
 
* [[2000 IMO Problems/Problem 3 | Problem 3]] proposed by Belarus
 
* [[2000 IMO Problems/Problem 4 | Problem 4]] proposed by Sándor Dobos, Hungary
 
* [[2000 IMO Problems/Problem 5 | Problem 5]] proposed by Valerii Senderov, Russia
 
* [[2000 IMO Problems/Problem 6 | Problem 6]] proposed by Lev and Tatiana Emelianovii, Russia
 
 
 
== 2001 ==
 
 
 
* [[2001 IMO]] (in USA)
 
* [[2001 IMO Problems]]
 
* [[2001 IMO Problems/Problem 1 | Problem 1]] proposed by Hojoo Lee, South Korea
 
* [[2001 IMO Problems/Problem 2 | Problem 2]] proposed by Hojoo Lee, South Korea
 
* [[2001 IMO Problems/Problem 3 | Problem 3]] proposed by Christian Bey, Germany
 
* [[2001 IMO Problems/Problem 4 | Problem 4]] proposed by Bill Sands, Canada
 
* [[2001 IMO Problems/Problem 5 | Problem 5]] proposed by Israel, (Problem 2501 in Crux Mathematicorum, February 2000)
 
* [[2001 IMO Problems/Problem 6 | Problem 6]] proposed by Aleksander Ivanov, Bulgaria
 
 
 
== 2002 ==
 
 
 
* [[2002 IMO]] (in United Kingdom)
 
* [[2002 IMO Problems]]
 
* [[2002 IMO Problems/Problem 1 | Problem 1]] proposed by Federico Ardila, Colombia
 
* [[2002 IMO Problems/Problem 2 | Problem 2]] proposed by Hojoo Lee, South Korea
 
* [[2002 IMO Problems/Problem 3 | Problem 3]] proposed by Laurentiu Panaitopol, Romania
 
* [[2002 IMO Problems/Problem 4 | Problem 4]] proposed by Mihai Manea, Romania
 
* [[2002 IMO Problems/Problem 5 | Problem 5]] proposed by Belur Jana Venkatachala, India
 
* [[2002 IMO Problems/Problem 6 | Problem 6]] proposed by Vyacheslav Yasinsky, Ukraine
 
 
 
== 2003 ==
 
 
 
* [[2003 IMO]] (in Japan)
 
* [[2003 IMO Problems]]
 
* [[2003 IMO Problems/Problem 1 | Problem 1]] proposed by Carlos Gustavo Moreira, Brazil
 
* [[2003 IMO Problems/Problem 2 | Problem 2]] proposed by Aleksander Ivanov, Bulgaria
 
* [[2003 IMO Problems/Problem 3 | Problem 3]] proposed by Waldemar Pompe, Poland
 
* [[2003 IMO Problems/Problem 4 | Problem 4]] proposed by Matti Lehtinen, Finland
 
* [[2003 IMO Problems/Problem 5 | Problem 5]] proposed by Finbarr Holland, Ireland
 
* [[2003 IMO Problems/Problem 6 | Problem 6]] proposed by Johan Yebbou, France
 
 
 
== 2004 ==
 
 
 
* [[2004 IMO]] (in Greece)
 
* [[2004 IMO Problems]]
 
* [[2004 IMO Problems/Problem 1 | Problem 1]] proposed by Valentin Vornicu and Dinu Serbanescu, Romania
 
* [[2004 IMO Problems/Problem 2 | Problem 2]] proposed by Hojoo Lee, South Korea
 
* [[2004 IMO Problems/Problem 3 | Problem 3]] proposed by Jan Willemson, Estonia
 
* [[2004 IMO Problems/Problem 4 | Problem 4]] proposed by Hojoo Lee, South Korea
 
* [[2004 IMO Problems/Problem 5 | Problem 5]] proposed by Waldemar Pompe, Poland
 
* [[2004 IMO Problems/Problem 6 | Problem 6]] proposed by Mohsen Jamaali and Armin Morabbi, Iran
 
 
 
== 2005 ==
 
 
 
* [[2005 IMO]] (in Mexico)
 
* [[2005 IMO Problems]]
 
* [[2005 IMO Problems/Problem 1 | Problem 1]] proposed by Bogdan Enescu, Romania
 
* [[2005 IMO Problems/Problem 2 | Problem 2]] proposed by Nicholas de Bruijn, Netherlands
 
* [[2005 IMO Problems/Problem 3 | Problem 3]] proposed by Hojoo Lee, South Korea
 
* [[2005 IMO Problems/Problem 4 | Problem 4]] proposed by Mariusz Skalba, Poland
 
* [[2005 IMO Problems/Problem 5 | Problem 5]] proposed by Waldemar Pompe, Poland
 
* [[2005 IMO Problems/Problem 6 | Problem 6]] proposed by Radu Gologan and Dan Schwarz, Romania
 
 
 
== 2006 ==
 
 
 
* [[2006 IMO]] (in Slovenia)
 
* [[2006 IMO Problems]]
 
* [[2006 IMO Problems/Problem 1 | Problem 1]] proposed by Hojoo Lee, South Korea
 
* [[2006 IMO Problems/Problem 2 | Problem 2]] proposed by Dušan Djukić, Serbia
 
* [[2006 IMO Problems/Problem 3 | Problem 3]] proposed by Finbarr Holland, Ireland
 
* [[2006 IMO Problems/Problem 4 | Problem 4]] proposed by Zuming Feng, USA
 
* [[2006 IMO Problems/Problem 5 | Problem 5]] proposed by Dan Schwarz, Romania
 
* [[2006 IMO Problems/Problem 6 | Problem 6]] proposed by Dušan Djukić, Serbia
 
 
 
== 2007 ==
 
 
 
* [[2007 IMO]] (in Vietnam)
 
* [[2007 IMO Problems]]
 
* [[2007 IMO Problems/Problem 1 | Problem 1]] proposed by Michael Albert, New Zealand
 
* [[2007 IMO Problems/Problem 2 | Problem 2]] proposed by Charles Leytem, Luxembourg
 
* [[2007 IMO Problems/Problem 3 | Problem 3]] proposed by Vasily Astakhov, Russia
 
* [[2007 IMO Problems/Problem 4 | Problem 4]] proposed by Marek Pechal, Czech Republic
 
* [[2007 IMO Problems/Problem 5 | Problem 5]] proposed by Kevin Buzzard and Edward Crane, United Kingdom
 
* [[2007 IMO Problems/Problem 6 | Problem 6]] proposed by Gerhard Woeginger, Netherlands
 
 
 
== See also ==
 
 
 
* [[IMO problems statistics]]
 
* [http://www.artofproblemsolving.com/Forum/resources.php?c=1&cid=16 IMO problems on the Resources page]
 
* [[IMO Shortlist Problems]]
 
* [[Academic Olympiads]]
 
* [[Mathematics competition resources]]
 
 
 
[[Category:Math Contest Problems]]
 

Latest revision as of 20:35, 25 October 2007