Difference between revisions of "IMO Problems and Solutions, with authors"
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== 1959 == | == 1959 == | ||
| − | + | ||
| − | + | * [[1959 IMO]] | |
| − | + | * [[1959 IMO Problems]] | |
| − | + | * [[1959 IMO Problems/Problem 1 | Problem 1]] proposed by Poland | |
| − | + | * [[1959 IMO Problems/Problem 2 | Problem 2]] proposed by 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 Romania | ||
| + | * [[1959 IMO Problems/Problem 6 | Problem 6]] proposed by Czechoslovakia | ||
== 1960 == | == 1960 == | ||
| − | + | ||
| − | + | * [[1960 IMO]] | |
| − | + | * [[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 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 Eastern Germany | ||
== 1961 == | == 1961 == | ||
| − | + | ||
| − | + | * [[1961 IMO]] | |
| − | + | * [[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 Eastern Germany | ||
| + | * [[1961 IMO Problems/Problem 5 | Problem 5]] proposed by Czechoslovakia | ||
| + | * [[1961 IMO Problems/Problem 6 | Problem 6]] proposed by Romania | ||
== 1962 == | == 1962 == | ||
| − | + | ||
| − | + | * [[1962 IMO]] | |
| − | + | * [[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 Romania | |
| + | * [[1962 IMO Problems/Problem 5 | Problem 5]] proposed by Bulgaria | ||
| + | * [[1962 IMO Problems/Problem 6 | Problem 6]] proposed by Eastern Germany | ||
| + | * [[1962 IMO Problems/Problem 7 | Problem 7]] proposed by USSR | ||
== 1963 == | == 1963 == | ||
| − | + | ||
| − | + | * [[1963 IMO]] | |
| − | + | * [[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 Eastern Germany | ||
| + | * [[1963 IMO Problems/Problem 6 | Problem 6]] proposed by Hungary | ||
== 1964 == | == 1964 == | ||
| − | + | ||
| − | + | * [[1964 IMO]] | |
| − | + | * [[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 Romania | ||
| + | * [[1964 IMO Problems/Problem 6 | Problem 6]] proposed by Poland | ||
== 1965 == | == 1965 == | ||
| − | + | ||
| − | + | * [[1965 IMO]] | |
| − | + | * [[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 Romania | ||
| + | * [[1965 IMO Problems/Problem 6 | Problem 6]] proposed by Poland | ||
== 1966 == | == 1966 == | ||
| − | + | ||
| − | + | * [[1966 IMO]] | |
| − | + | * [[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 == | ||
| − | + | ||
| − | + | * [[1967 IMO]] | |
| − | + | * [[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 Italy | ||
| + | * [[1967 IMO Problems/Problem 5 | Problem 5]] proposed by USSR | ||
| + | * [[1967 IMO Problems/Problem 6 | Problem 6]] proposed by Hungary | ||
== 1968 == | == 1968 == | ||
| − | + | ||
| − | + | * [[1968 IMO]] | |
| − | + | * [[1968 IMO Problems]] | |
| − | + | * [[1968 IMO Problems/Problem 1 | Problem 1]] proposed by Romania | |
| − | + | * [[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 Eastern Germany | ||
| + | * [[1968 IMO Problems/Problem 6 | Problem 6]] proposed by United Kingdom | ||
== 1969 == | == 1969 == | ||
| − | + | ||
| − | + | * [[1969 IMO]] | |
| − | + | * [[1969 IMO Problems]] | |
| − | + | * [[1969 IMO Problems/Problem 1 | Problem 1]] proposed by Eastern 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 Mongolia | ||
| + | * [[1969 IMO Problems/Problem 6 | Problem 6]] proposed by USSR | ||
== 1970 == | == 1970 == | ||
| − | + | ||
| − | + | * [[1970 IMO]] | |
| − | + | * [[1970 IMO Problems]] | |
| − | + | * [[1970 IMO Problems/Problem 1 | Problem 1]] proposed by Poland | |
| − | + | * [[1970 IMO Problems/Problem 2 | Problem 1]] proposed by Romania | |
| − | + | * [[1970 IMO Problems/Problem 3 | Problem 1]] proposed by Sweden | |
| + | * [[1970 IMO Problems/Problem 4 | Problem 1]] proposed by Czechoslovakia | ||
| + | * [[1970 IMO Problems/Problem 5 | Problem 1]] proposed by Bulgaria | ||
| + | * [[1970 IMO Problems/Problem 6 | Problem 1]] proposed by USSR | ||
== 1971 == | == 1971 == | ||
| − | + | ||
| − | + | * [[1971 IMO]] | |
| − | + | * [[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 == | ||
| − | + | ||
| − | + | * [[1972 IMO]] | |
| − | + | * [[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 == | ||
| − | + | ||
| − | + | * [[1973 IMO]] | |
| − | + | * [[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 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 Sweden | ||
== 1974 == | == 1974 == | ||
| − | + | ||
| − | + | * [[1974 IMO]] | |
| − | + | * [[1974 IMO Problems]] | |
| − | + | * [[1974 IMO Problems/Problem 1 | Problem 1]] proposed by USA | |
| − | + | * [[1974 IMO Problems/Problem 2 | Problem 2]] proposed by Finland | |
| − | + | * [[1974 IMO Problems/Problem 3 | Problem 3]] proposed by Romania | |
| + | * [[1974 IMO Problems/Problem 4 | Problem 4]] proposed by Bulgaria | ||
| + | * [[1974 IMO Problems/Problem 5 | Problem 5]] proposed by Netherlands | ||
| + | * [[1974 IMO Problems/Problem 6 | Problem 6]] proposed by Sweden | ||
== 1975 == | == 1975 == | ||
| − | + | ||
| − | + | * [[1975 IMO]] | |
| − | + | * [[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 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 == | ||
| − | + | ||
| − | + | * [[1976 IMO]] | |
| − | + | * [[1976 IMO Problems]] | |
| − | + | * [[1976 IMO Problems/Problem 1 | Problem 1]] proposed by Czechoslovakia | |
| − | + | * [[1976 IMO Problems/Problem 2 | Problem 2]] proposed by Finland | |
| − | + | * [[1976 IMO Problems/Problem 3 | Problem 3]] proposed by Netherlands | |
| + | * [[1976 IMO Problems/Problem 4 | Problem 4]] proposed by USA | ||
| + | * [[1976 IMO Problems/Problem 5 | Problem 5]] proposed by Netherlands | ||
| + | * [[1976 IMO Problems/Problem 6 | Problem 6]] proposed by United Kingdom | ||
== 1977 == | == 1977 == | ||
| − | + | ||
| − | + | * [[1977 IMO]] | |
| − | + | * [[1977 IMO Problems]] | |
| − | + | * [[1977 IMO Problems/Problem 1 | Problem 1]] proposed by Netherlands | |
| − | + | * [[1977 IMO Problems/Problem 2 | Problem 2]] proposed by Vietnam | |
| − | + | * [[1977 IMO Problems/Problem 3 | Problem 3]] proposed by Netherlands | |
| + | * [[1977 IMO Problems/Problem 4 | Problem 4]] proposed by United Kingdom | ||
| + | * [[1977 IMO Problems/Problem 5 | Problem 5]] proposed by Eastern Germany | ||
| + | * [[1977 IMO Problems/Problem 6 | Problem 6]] proposed by Bulgaria | ||
== 1978 == | == 1978 == | ||
| − | + | ||
| − | + | * [[1978 IMO]] | |
| − | + | * [[1978 IMO Problems]] | |
| − | + | * [[1978 IMO Problems/Problem 1 | Problem 1]] proposed by Cuba | |
| − | + | * [[1978 IMO Problems/Problem 2 | Problem 2]] proposed by USA | |
| − | + | * [[1978 IMO Problems/Problem 3 | Problem 3]] proposed by United Kingdom | |
| + | * [[1978 IMO Problems/Problem 4 | Problem 4]] proposed by USA | ||
| + | * [[1978 IMO Problems/Problem 5 | Problem 5]] proposed by France | ||
| + | * [[1978 IMO Problems/Problem 6 | Problem 6]] proposed by Netherlands | ||
== 1979 == | == 1979 == | ||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | + | * [[1979 IMO]] | |
| − | + | * [[1979 IMO Problems]] | |
| − | + | * [[1979 IMO Problems/Problem 1 | Problem 1]] proposed by Western Germany | |
| − | + | * [[1979 IMO Problems/Problem 1 | Problem 1]] proposed by Bulgaria | |
| − | + | * [[1979 IMO Problems/Problem 1 | Problem 1]] proposed by USSR | |
| − | + | * [[1979 IMO Problems/Problem 1 | Problem 1]] proposed by USA | |
| − | + | * [[1979 IMO Problems/Problem 1 | Problem 1]] proposed by Israel | |
| + | * [[1979 IMO Problems/Problem 1 | Problem 1]] proposed by Eastern Germany | ||
== 1980 == | == 1980 == | ||
(There was no IMO in 1980.) | (There was no IMO in 1980.) | ||
| + | |||
| + | == 1981 == | ||
| + | |||
| + | * [[1981 IMO]] | ||
| + | * [[1981 IMO Problems]] | ||
| + | * [[1981 IMO Problems/Problem 1 | Problem 1]] proposed by United Kingdom | ||
| + | * [[1981 IMO Problems/Problem 2 | Problem 2]] proposed by Western Germany | ||
| + | * [[1981 IMO Problems/Problem 3 | Problem 3]] proposed by 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 Finland | ||
== 1982 == | == 1982 == | ||
| − | + | ||
| − | + | * [[1982 IMO]] | |
| − | + | * [[1982 IMO Problems]] | |
| − | + | * [[1982 IMO Problems/Problem 1 | Problem 1]] proposed by United Kingdom | |
| − | + | * [[1982 IMO Problems/Problem 2 | Problem 2]] proposed by Netherlands | |
| − | + | * [[1982 IMO Problems/Problem 3 | Problem 3]] proposed by A.Grishkov, USSR | |
| + | * [[1982 IMO Problems/Problem 4 | Problem 4]] proposed by United Kingdom | ||
| + | * [[1982 IMO Problems/Problem 5 | Problem 5]] proposed by Netherlands | ||
| + | * [[1982 IMO Problems/Problem 6 | Problem 6]] proposed by Vietnam | ||
== 1983 == | == 1983 == | ||
Revision as of 23:20, 26 July 2006
This page lists the authors of the problems of the IMO.
Contents
- 1 1959
- 2 1960
- 3 1961
- 4 1962
- 5 1963
- 6 1964
- 7 1965
- 8 1966
- 9 1967
- 10 1968
- 11 1969
- 12 1970
- 13 1971
- 14 1972
- 15 1973
- 16 1974
- 17 1975
- 18 1976
- 19 1977
- 20 1978
- 21 1979
- 22 1980
- 23 1981
- 24 1982
- 25 1983
- 26 1984
- 27 1985
- 28 1986
- 29 1987
- 30 1988
- 31 1989
- 32 1990
- 33 1991
- 34 1992
- 35 1993
- 36 1994
- 37 1995
- 38 1996
- 39 1997
- 40 1998
- 41 1999
- 42 2000
- 43 2001
- 44 2002
- 45 2003
- 46 2004
1959
- 1959 IMO
- 1959 IMO Problems
- Problem 1 proposed by Poland
- Problem 2 proposed by Romania
- Problem 3 proposed by Hungary
- Problem 4 proposed by Hungary
- Problem 5 proposed by Romania
- Problem 6 proposed by Czechoslovakia
1960
- 1960 IMO
- 1960 IMO Problems
- Problem 1 proposed by Bulgaria
- Problem 2 proposed by Hungary
- Problem 3 proposed by Romania
- Problem 4 proposed by Hungary
- Problem 5 proposed by Czechoslovakia
- Problem 6 proposed by Bulgaria
- Problem 7 proposed by Eastern Germany
1961
- 1961 IMO
- 1961 IMO Problems
- Problem 1 proposed by Hungary
- Problem 2 proposed by Poland
- Problem 3 proposed by Bulgaria
- Problem 4 proposed by Eastern Germany
- Problem 5 proposed by Czechoslovakia
- Problem 6 proposed by Romania
1962
- 1962 IMO
- 1962 IMO Problems
- Problem 1 proposed by Poland
- Problem 2 proposed by Hungary
- Problem 3 proposed by Czechoslovakia
- Problem 4 proposed by Romania
- Problem 5 proposed by Bulgaria
- Problem 6 proposed by Eastern Germany
- Problem 7 proposed by USSR
1963
- 1963 IMO
- 1963 IMO Problems
- Problem 1 proposed by Czechoslovakia
- Problem 2 proposed by USSR
- Problem 3 proposed by Hungary
- Problem 4 proposed by USSR
- Problem 5 proposed by Eastern Germany
- Problem 6 proposed by Hungary
1964
- 1964 IMO
- 1964 IMO Problems
- Problem 1 proposed by Czechoslovakia
- Problem 2 proposed by Hungary
- Problem 3 proposed by Yugoslavia
- Problem 4 proposed by Hungary
- Problem 5 proposed by Romania
- Problem 6 proposed by Poland
1965
- 1965 IMO
- 1965 IMO Problems
- Problem 1 proposed by Yugoslavia
- Problem 2 proposed by Poland
- Problem 3 proposed by Czechoslovakia
- Problem 4 proposed by USSR
- Problem 5 proposed by Romania
- Problem 6 proposed by Poland
1966
- 1966 IMO
- 1966 IMO Problems
- Problem 1 proposed by USSR
- Problem 2 proposed by Hungary
- Problem 3 proposed by Bulgaria
- Problem 4 proposed by Yugoslavia
- Problem 5 proposed by Czechoslovakia
- Problem 6 proposed by Poland
1967
- 1967 IMO
- 1967 IMO Problems
- Problem 1 proposed by Poland
- Problem 2 proposed by Czechoslovakia
- Problem 3 proposed by United Kingdom
- Problem 4 proposed by Italy
- Problem 5 proposed by USSR
- Problem 6 proposed by Hungary
1968
- 1968 IMO
- 1968 IMO Problems
- Problem 1 proposed by Romania
- Problem 2 proposed by Czechoslovakia
- Problem 3 proposed by Bulgaria
- Problem 4 proposed by Poland
- Problem 5 proposed by Eastern Germany
- Problem 6 proposed by United Kingdom
1969
- 1969 IMO
- 1969 IMO Problems
- Problem 1 proposed by Eastern Germany
- Problem 2 proposed by Hungary
- Problem 3 proposed by Poland
- Problem 4 proposed by Netherlands
- Problem 5 proposed by Mongolia
- Problem 6 proposed by USSR
1970
- 1970 IMO
- 1970 IMO Problems
- Problem 1 proposed by Poland
- Problem 1 proposed by Romania
- Problem 1 proposed by Sweden
- Problem 1 proposed by Czechoslovakia
- Problem 1 proposed by Bulgaria
- Problem 1 proposed by USSR
1971
- 1971 IMO
- 1971 IMO Problems
- Problem 1 proposed by Hungary
- Problem 2 proposed by USSR
- Problem 3 proposed by Poland
- Problem 4 proposed by Netherlands
- Problem 5 proposed by Bulgaria
- Problem 6 proposed by Sweden
1972
- 1972 IMO
- 1972 IMO Problems
- Problem 1 proposed by USSR
- Problem 2 proposed by Netherlands
- Problem 3 proposed by United Kingdom
- Problem 4 proposed by Netherlands
- Problem 5 proposed by Bulgaria
- Problem 6 proposed by United Kingdom
1973
- 1973 IMO
- 1973 IMO Problems
- Problem 1 proposed by Czechoslovakia
- Problem 2 proposed by Poland
- Problem 3 proposed by Sweden
- Problem 4 proposed by Yugoslavia
- Problem 5 proposed by Poland
- Problem 6 proposed by Sweden
1974
- 1974 IMO
- 1974 IMO Problems
- Problem 1 proposed by USA
- Problem 2 proposed by Finland
- Problem 3 proposed by Romania
- Problem 4 proposed by Bulgaria
- Problem 5 proposed by Netherlands
- Problem 6 proposed by Sweden
1975
- 1975 IMO
- 1975 IMO Problems
- Problem 1 proposed by Czechoslovakia
- Problem 2 proposed by United Kingdom
- Problem 3 proposed by Netherlands
- Problem 4 proposed by USSR
- Problem 5 proposed by USSR
- Problem 6 proposed by United Kingdom
1976
- 1976 IMO
- 1976 IMO Problems
- Problem 1 proposed by Czechoslovakia
- Problem 2 proposed by Finland
- Problem 3 proposed by Netherlands
- Problem 4 proposed by USA
- Problem 5 proposed by Netherlands
- Problem 6 proposed by United Kingdom
1977
- 1977 IMO
- 1977 IMO Problems
- Problem 1 proposed by Netherlands
- Problem 2 proposed by Vietnam
- Problem 3 proposed by Netherlands
- Problem 4 proposed by United Kingdom
- Problem 5 proposed by Eastern Germany
- Problem 6 proposed by Bulgaria
1978
- 1978 IMO
- 1978 IMO Problems
- Problem 1 proposed by Cuba
- Problem 2 proposed by USA
- Problem 3 proposed by United Kingdom
- Problem 4 proposed by USA
- Problem 5 proposed by France
- Problem 6 proposed by Netherlands
1979
- 1979 IMO
- 1979 IMO Problems
- Problem 1 proposed by Western Germany
- Problem 1 proposed by Bulgaria
- Problem 1 proposed by USSR
- Problem 1 proposed by USA
- Problem 1 proposed by Israel
- Problem 1 proposed by Eastern Germany
1980
(There was no IMO in 1980.)
1981
- 1981 IMO
- 1981 IMO Problems
- Problem 1 proposed by United Kingdom
- Problem 2 proposed by Western Germany
- Problem 3 proposed by Netherlands
- Problem 4 proposed by Belgium
- Problem 5 proposed by USSR
- Problem 6 proposed by Finland
1982
- 1982 IMO
- 1982 IMO Problems
- Problem 1 proposed by United Kingdom
- Problem 2 proposed by Netherlands
- Problem 3 proposed by A.Grishkov, USSR
- Problem 4 proposed by United Kingdom
- Problem 5 proposed by Netherlands
- Problem 6 proposed by Vietnam
1983
- proposed by United Kingdom
- proposed by I.F.Sharygin, USSR
- proposed by Western Germany
- proposed by Belgium
- proposed by Poland
- proposed by USA
1984
- proposed by Western Germany
- proposed by Netherlands
- proposed by Romania
- proposed by Romania
- proposed by Mongolia
- proposed by Poland
1985
- proposed by United Kingdom
- proposed by Australia
- proposed by Netherlands
- proposed by Mongolia
- proposed by USSR
- proposed by Sweden
1986
- proposed by Western Germany
- proposed by Gengzhe Chang and Dongxu Qi, China
- proposed by Elias Wegert, Eastern Germany
- proposed by Iceland
- proposed by United Kingdom
- proposed by Konrad Engel from Eastern Germany
1987
- proposed by Western Germany
- proposed by I.A.Kushnir, USSR
- proposed by Western Germany
- proposed by Vietnam
- proposed by Eastern Germany
- proposed by V.F.Lev, USSR
1988
- proposed by Lucien Kieffer from Luxembourg
- proposed by Czechoslovakia
- proposed by United Kingdom
- proposed by Ireland
- proposed by Greece
- proposed by Western Germany
1989
- proposed by Philippines
- proposed by Australia
- proposed by Hendrikus Gerardus Derksen, Netherlands
- proposed by Iceland
- proposed by Sweden
- proposed by Professor Marcin Kuczma, university of Warsaw, Poland
1990
- proposed by India
- proposed by Czechoslovakia
- proposed by Laurentin Panaitopol, university of Bucharest Romania
- proposed by Turkey
- proposed by Germany
- proposed by Hendrikus Gerardus Derksen, Netherlands
1991
- proposed by USSR
- proposed by Romania
- proposed by Chengzhang Li, China
- proposed by USA
- proposed by Johan Yebbou, France
- proposed by Hendrikus Gerardus Derksen, Netherlands
1992
- proposed by New Zealand
- proposed by India
- proposed by Chengzhang Li, China
- proposed by Johan Yebbou, France
- proposed by Italy
- proposed by Tony Gardiner from United Kingdom
1993
- proposed by Ireland
- proposed by David Monk, formerly University of Edinburgh, United Kingdom
- proposed by Finland
- proposed by F.Y.R. Macedonia
- proposed by Elias Wegert, Germany
- proposed by Netherlands
1994
- proposed by Vincent Lafforgue, France
- proposed by Hans Lausch, Monash University, Australia and Armenia independently
- proposed by Romania
- proposed by Australia
- proposed by United Kingdom
- proposed by Finland
1995
- proposed by Bulgaria
- proposed by Nazar Agakhanov, Russia
- proposed by Karel Horak from Czech Republic
- proposed by Professor Marcin Kuczma, university of Warsaw, Poland
- proposed by New Zealand
- proposed by Professor Marcin Kuczma, university of Warsaw, Poland
1996
- proposed by Finland
- proposed by Canada
- proposed by Romania
- proposed by Alexander S. Golovanov, Russia
- proposed by Nairi M. Sedrakyan from Armenia
- proposed by Laurent Rosaz, France
1997
- proposed by Belarus
- proposed by David Monk, formerly University of Edinburgh, United Kingdom
- proposed by Russia
- proposed by Iran
- proposed by Czech Republic
- proposed by Giedrius Alkauskas, Lithuania
1998
- proposed by Charles Leytem, high school Dierkirch, Luxembourg
- proposed by India
- proposed by Belarus
- proposed by David Monk university Edinbourg
- proposed by Ukraine
- proposed by Nikolai Nikolov and Oleg Mushkarov Institut Mathematiques Informatiques Academie des Sciences Sofia Bulgarie
1999
- proposed by Jan Willemson university of Tartu, Estonia
- proposed by Professor Marcin Kuczma, university of Warsaw, Poland
- proposed by E.Barabanov and I.Voronovich, Belarus
- proposed by Taiwan
- proposed by P.Kozhevnikov, Russia
- proposed by Japan
2000
- proposed by Sergeerlov, Saint-Petersbourg Russia
- proposed by Titu Andreescu from USA
- proposed by Belarus
- proposed by Sandor Dobos professor lyc Fazekas Mihaly, Budapest, Hungary
- proposed by Valerii Senderov, Moscou Russia
- proposed by Lev and Tatiana Emelianovii, Kaluga Russia
2001
- proposed by Hojoo Lee university Kwangwoon, Seoul Korea
- proposed by Hojoo Lee university Kwangwoon, Seoul Korea
- proposed by Dr.Christian Bey university of Rostock, Germany
- proposed by Professor Bill Sands university of Calgary, Canada
- proposed by Toshio Seimiya, Kawasaki Japan / see cruxmathematicorum problem 2501
- proposed by Alexander Ivanov, Bulgaria
2002
- proposed by Federico Ardila, university of Los Andes, Bogota Colombia
- proposed by Hojoo Lee university Kwangwoon, Seoul Korea
- proposed by Laurentin Panaitopol, university of Bucharest Romania
- proposed by Mihai Manea, Galati Romania
- proposed by B.J.Venkatachala, professor university of Indian Institut of Sciences, Bangalore India
- proposed by Vyacheslav Yasinskiy, Vinnitsa Pedagogical University, Vinnitsa Ukraine
2003
- proposed by Carlos Gustavo Moreira, Brasilia
- proposed by Bulgaria
- proposed by Poland
- proposed by Finland
- proposed by Ireland
- proposed by Johan Yebbou Professeur Mathematiques Speciales MP* in France
2004
- proposed by Valentin Vornicu and Dinu Serbanescu, Romania
- proposed by Hojoo Lee university Kwangwoon, Seoul Korea
- proposed by Jan Villemson, Estonia
- proposed by Hojoo Lee university Kwangwoon, Seoul Korea
- proposed by Poland
- proposed by Iran
