Difference between revisions of "IMO Problems and Solutions, with authors"
(Added organizing countries) |
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| Line 3: | Line 3: | ||
== 1959 == | == 1959 == | ||
| − | * [[1959 IMO]] | + | * [[1959 IMO]] (Romania) |
* [[1959 IMO Problems]] | * [[1959 IMO Problems]] | ||
* [[1959 IMO Problems/Problem 1 | Problem 1]] proposed by Poland | * [[1959 IMO Problems/Problem 1 | Problem 1]] proposed by Poland | ||
| Line 14: | Line 14: | ||
== 1960 == | == 1960 == | ||
| − | * [[1960 IMO]] | + | * [[1960 IMO]] (Romania) |
* [[1960 IMO Problems]] | * [[1960 IMO Problems]] | ||
* [[1960 IMO Problems/Problem 1 | Problem 1]] proposed by Bulgaria | * [[1960 IMO Problems/Problem 1 | Problem 1]] proposed by Bulgaria | ||
| Line 26: | Line 26: | ||
== 1961 == | == 1961 == | ||
| − | * [[1961 IMO]] | + | * [[1961 IMO]] (Hungary) |
* [[1961 IMO Problems]] | * [[1961 IMO Problems]] | ||
* [[1961 IMO Problems/Problem 1 | Problem 1]] proposed by Hungary | * [[1961 IMO Problems/Problem 1 | Problem 1]] proposed by Hungary | ||
| Line 37: | Line 37: | ||
== 1962 == | == 1962 == | ||
| − | * [[1962 IMO]] | + | * [[1962 IMO]] (Czechoslovakia) |
* [[1962 IMO Problems]] | * [[1962 IMO Problems]] | ||
* [[1962 IMO Problems/Problem 1 | Problem 1]] proposed by Poland | * [[1962 IMO Problems/Problem 1 | Problem 1]] proposed by Poland | ||
| Line 49: | Line 49: | ||
== 1963 == | == 1963 == | ||
| − | * [[1963 IMO]] | + | * [[1963 IMO]] (Poland) |
* [[1963 IMO Problems]] | * [[1963 IMO Problems]] | ||
* [[1963 IMO Problems/Problem 1 | Problem 1]] proposed by Czechoslovakia | * [[1963 IMO Problems/Problem 1 | Problem 1]] proposed by Czechoslovakia | ||
| Line 60: | Line 60: | ||
== 1964 == | == 1964 == | ||
| − | * [[1964 IMO]] | + | * [[1964 IMO]] (USSR) |
* [[1964 IMO Problems]] | * [[1964 IMO Problems]] | ||
* [[1964 IMO Problems/Problem 1 | Problem 1]] proposed by Czechoslovakia | * [[1964 IMO Problems/Problem 1 | Problem 1]] proposed by Czechoslovakia | ||
| Line 71: | Line 71: | ||
== 1965 == | == 1965 == | ||
| − | * [[1965 IMO]] | + | * [[1965 IMO]] (East Germany) |
* [[1965 IMO Problems]] | * [[1965 IMO Problems]] | ||
* [[1965 IMO Problems/Problem 1 | Problem 1]] proposed by Yugoslavia | * [[1965 IMO Problems/Problem 1 | Problem 1]] proposed by Yugoslavia | ||
| Line 82: | Line 82: | ||
== 1966 == | == 1966 == | ||
| − | * [[1966 IMO]] | + | * [[1966 IMO]] (Bulgaria) |
* [[1966 IMO Problems]] | * [[1966 IMO Problems]] | ||
* [[1966 IMO Problems/Problem 1 | Problem 1]] proposed by USSR | * [[1966 IMO Problems/Problem 1 | Problem 1]] proposed by USSR | ||
| Line 93: | Line 93: | ||
== 1967 == | == 1967 == | ||
| − | * [[1967 IMO]] | + | * [[1967 IMO]] (Yugoslavia) |
* [[1967 IMO Problems]] | * [[1967 IMO Problems]] | ||
* [[1967 IMO Problems/Problem 1 | Problem 1]] proposed by Poland | * [[1967 IMO Problems/Problem 1 | Problem 1]] proposed by Poland | ||
| Line 104: | Line 104: | ||
== 1968 == | == 1968 == | ||
| − | * [[1968 IMO]] | + | * [[1968 IMO]] (USSR) |
* [[1968 IMO Problems]] | * [[1968 IMO Problems]] | ||
* [[1968 IMO Problems/Problem 1 | Problem 1]] proposed by Romania | * [[1968 IMO Problems/Problem 1 | Problem 1]] proposed by Romania | ||
| Line 115: | Line 115: | ||
== 1969 == | == 1969 == | ||
| − | * [[1969 IMO]] | + | * [[1969 IMO]] (Romania) |
* [[1969 IMO Problems]] | * [[1969 IMO Problems]] | ||
* [[1969 IMO Problems/Problem 1 | Problem 1]] proposed by East Germany | * [[1969 IMO Problems/Problem 1 | Problem 1]] proposed by East Germany | ||
| Line 126: | Line 126: | ||
== 1970 == | == 1970 == | ||
| − | * [[1970 IMO]] | + | * [[1970 IMO]] (Hungary) |
* [[1970 IMO Problems]] | * [[1970 IMO Problems]] | ||
* [[1970 IMO Problems/Problem 1 | Problem 1]] proposed by Poland | * [[1970 IMO Problems/Problem 1 | Problem 1]] proposed by Poland | ||
| Line 137: | Line 137: | ||
== 1971 == | == 1971 == | ||
| − | * [[1971 IMO]] | + | * [[1971 IMO]] (Czechoslovakia) |
* [[1971 IMO Problems]] | * [[1971 IMO Problems]] | ||
* [[1971 IMO Problems/Problem 1 | Problem 1]] proposed by Hungary | * [[1971 IMO Problems/Problem 1 | Problem 1]] proposed by Hungary | ||
| Line 148: | Line 148: | ||
== 1972 == | == 1972 == | ||
| − | * [[1972 IMO]] | + | * [[1972 IMO]] (Poland) |
* [[1972 IMO Problems]] | * [[1972 IMO Problems]] | ||
* [[1972 IMO Problems/Problem 1 | Problem 1]] proposed by USSR | * [[1972 IMO Problems/Problem 1 | Problem 1]] proposed by USSR | ||
| Line 159: | Line 159: | ||
== 1973 == | == 1973 == | ||
| − | * [[1973 IMO]] | + | * [[1973 IMO]] (USSR) |
* [[1973 IMO Problems]] | * [[1973 IMO Problems]] | ||
* [[1973 IMO Problems/Problem 1 | Problem 1]] proposed by Czechoslovakia | * [[1973 IMO Problems/Problem 1 | Problem 1]] proposed by Czechoslovakia | ||
| Line 170: | Line 170: | ||
== 1974 == | == 1974 == | ||
| − | * [[1974 IMO]] | + | * [[1974 IMO]] (East Germany) |
* [[1974 IMO Problems]] | * [[1974 IMO Problems]] | ||
* [[1974 IMO Problems/Problem 1 | Problem 1]] proposed by USA | * [[1974 IMO Problems/Problem 1 | Problem 1]] proposed by USA | ||
| Line 181: | Line 181: | ||
== 1975 == | == 1975 == | ||
| − | * [[1975 IMO]] | + | * [[1975 IMO]] (Bulgaria) |
* [[1975 IMO Problems]] | * [[1975 IMO Problems]] | ||
* [[1975 IMO Problems/Problem 1 | Problem 1]] proposed by Czechoslovakia | * [[1975 IMO Problems/Problem 1 | Problem 1]] proposed by Czechoslovakia | ||
| Line 192: | Line 192: | ||
== 1976 == | == 1976 == | ||
| − | * [[1976 IMO]] | + | * [[1976 IMO]] (Austria) |
* [[1976 IMO Problems]] | * [[1976 IMO Problems]] | ||
* [[1976 IMO Problems/Problem 1 | Problem 1]] proposed by Czechoslovakia | * [[1976 IMO Problems/Problem 1 | Problem 1]] proposed by Czechoslovakia | ||
| Line 203: | Line 203: | ||
== 1977 == | == 1977 == | ||
| − | * [[1977 IMO]] | + | * [[1977 IMO]] (Yugoslavia) |
* [[1977 IMO Problems]] | * [[1977 IMO Problems]] | ||
* [[1977 IMO Problems/Problem 1 | Problem 1]] proposed by Netherlands | * [[1977 IMO Problems/Problem 1 | Problem 1]] proposed by Netherlands | ||
| Line 214: | Line 214: | ||
== 1978 == | == 1978 == | ||
| − | * [[1978 IMO]] | + | * [[1978 IMO]] (Romania) |
* [[1978 IMO Problems]] | * [[1978 IMO Problems]] | ||
* [[1978 IMO Problems/Problem 1 | Problem 1]] proposed by Cuba | * [[1978 IMO Problems/Problem 1 | Problem 1]] proposed by Cuba | ||
| Line 225: | Line 225: | ||
== 1979 == | == 1979 == | ||
| − | * [[1979 IMO]] | + | * [[1979 IMO]] (United Kingdom) |
* [[1979 IMO Problems]] | * [[1979 IMO Problems]] | ||
* [[1979 IMO Problems/Problem 1 | Problem 1]] proposed by West Germany | * [[1979 IMO Problems/Problem 1 | Problem 1]] proposed by West Germany | ||
| Line 240: | Line 240: | ||
== 1981 == | == 1981 == | ||
| − | * [[1981 IMO]] | + | * [[1981 IMO]] (USA) |
* [[1981 IMO Problems]] | * [[1981 IMO Problems]] | ||
* [[1981 IMO Problems/Problem 1 | Problem 1]] proposed by United Kingdom | * [[1981 IMO Problems/Problem 1 | Problem 1]] proposed by United Kingdom | ||
| Line 251: | Line 251: | ||
== 1982 == | == 1982 == | ||
| − | * [[1982 IMO]] | + | * [[1982 IMO]] (Hungary) |
* [[1982 IMO Problems]] | * [[1982 IMO Problems]] | ||
* [[1982 IMO Problems/Problem 1 | Problem 1]] proposed by United Kingdom | * [[1982 IMO Problems/Problem 1 | Problem 1]] proposed by United Kingdom | ||
| Line 262: | Line 262: | ||
== 1983 == | == 1983 == | ||
| − | * [[1983 IMO]] | + | * [[1983 IMO]] (France) |
* [[1983 IMO Problems]] | * [[1983 IMO Problems]] | ||
* [[1983 IMO Problems/Problem 1 | Problem 1]] proposed by United Kingdom | * [[1983 IMO Problems/Problem 1 | Problem 1]] proposed by United Kingdom | ||
| Line 273: | Line 273: | ||
== 1984 == | == 1984 == | ||
| − | * [[1984 IMO]] | + | * [[1984 IMO]] (Czechoslovakia) |
* [[1984 IMO Problems]] | * [[1984 IMO Problems]] | ||
* [[1984 IMO Problems/Problem 1 | Problem 1]] proposed by West Germany | * [[1984 IMO Problems/Problem 1 | Problem 1]] proposed by West Germany | ||
| Line 284: | Line 284: | ||
== 1985 == | == 1985 == | ||
| − | * [[1985 IMO]] | + | * [[1985 IMO]] (Finland) |
* [[1985 IMO Problems]] | * [[1985 IMO Problems]] | ||
* [[1985 IMO Problems/Problem 1 | Problem 1]] proposed by United Kingdom | * [[1985 IMO Problems/Problem 1 | Problem 1]] proposed by United Kingdom | ||
| Line 295: | Line 295: | ||
== 1986 == | == 1986 == | ||
| − | * [[1986 IMO]] | + | * [[1986 IMO]] (Poland) |
* [[1986 IMO Problems]] | * [[1986 IMO Problems]] | ||
* [[1986 IMO Problems/Problem 1 | Problem 1]] proposed by West Germany | * [[1986 IMO Problems/Problem 1 | Problem 1]] proposed by West Germany | ||
| Line 306: | Line 306: | ||
== 1987 == | == 1987 == | ||
| − | * [[1987 IMO]] | + | * [[1987 IMO]] (Cuba) |
* [[1987 IMO Problems]] | * [[1987 IMO Problems]] | ||
* [[1987 IMO Problems/Problem 1 | Problem 1]] proposed by West Germany | * [[1987 IMO Problems/Problem 1 | Problem 1]] proposed by West Germany | ||
| Line 317: | Line 317: | ||
== 1988 == | == 1988 == | ||
| − | * [[1988 IMO]] | + | * [[1988 IMO]] (Australia) |
* [[1988 IMO Problems]] | * [[1988 IMO Problems]] | ||
* [[1988 IMO Problems/Problem 1 | Problem 1]] proposed by Lucien Kieffer, Luxembourg | * [[1988 IMO Problems/Problem 1 | Problem 1]] proposed by Lucien Kieffer, Luxembourg | ||
| Line 328: | Line 328: | ||
== 1989 == | == 1989 == | ||
| − | * [[1989 IMO]] | + | * [[1989 IMO]] (Germany) |
* [[1989 IMO Problems]] | * [[1989 IMO Problems]] | ||
* [[1989 IMO Problems/Problem 1 | Problem 1]] proposed by Philippines | * [[1989 IMO Problems/Problem 1 | Problem 1]] proposed by Philippines | ||
| Line 339: | Line 339: | ||
== 1990 == | == 1990 == | ||
| − | * [[1990 IMO]] | + | * [[1990 IMO]] (China) |
* [[1990 IMO Problems]] | * [[1990 IMO Problems]] | ||
* [[1990 IMO Problems/Problem 1 | Problem 1]] proposed by India | * [[1990 IMO Problems/Problem 1 | Problem 1]] proposed by India | ||
| Line 350: | Line 350: | ||
== 1991 == | == 1991 == | ||
| − | * [[1991 IMO]] | + | * [[1991 IMO]] (Sweden) |
* [[1991 IMO Problems]] | * [[1991 IMO Problems]] | ||
* [[1991 IMO Problems/Problem 1 | Problem 1]] proposed by USSR | * [[1991 IMO Problems/Problem 1 | Problem 1]] proposed by USSR | ||
| Line 361: | Line 361: | ||
== 1992 == | == 1992 == | ||
| − | * [[1992 IMO]] | + | * [[1992 IMO]] (Russia) |
* [[1992 IMO Problems]] | * [[1992 IMO Problems]] | ||
* [[1992 IMO Problems/Problem 1 | Problem 1]] proposed by New Zealand | * [[1992 IMO Problems/Problem 1 | Problem 1]] proposed by New Zealand | ||
| Line 372: | Line 372: | ||
== 1993 == | == 1993 == | ||
| − | * [[1993 IMO]] | + | * [[1993 IMO]] (Turkey) |
* [[1993 IMO Problems]] | * [[1993 IMO Problems]] | ||
* [[1993 IMO Problems/Problem 1 | Problem 1]] proposed by Tom Laffey, Ireland | * [[1993 IMO Problems/Problem 1 | Problem 1]] proposed by Tom Laffey, Ireland | ||
| Line 383: | Line 383: | ||
== 1994 == | == 1994 == | ||
| − | * [[1994 IMO]] | + | * [[1994 IMO]] (Hong Kong) |
* [[1994 IMO Problems]] | * [[1994 IMO Problems]] | ||
* [[1994 IMO Problems/Problem 1 | Problem 1]] proposed by Vincent Lafforgue, France | * [[1994 IMO Problems/Problem 1 | Problem 1]] proposed by Vincent Lafforgue, France | ||
| Line 394: | Line 394: | ||
== 1995 == | == 1995 == | ||
| − | * [[1995 IMO]] | + | * [[1995 IMO]] (Canada) |
* [[1995 IMO Problems]] | * [[1995 IMO Problems]] | ||
* [[1995 IMO Problems/Problem 1 | Problem 1]] proposed by Bulgaria | * [[1995 IMO Problems/Problem 1 | Problem 1]] proposed by Bulgaria | ||
| Line 405: | Line 405: | ||
== 1996 == | == 1996 == | ||
| − | * [[1996 IMO]] | + | * [[1996 IMO]] (India) |
* [[1996 IMO Problems]] | * [[1996 IMO Problems]] | ||
* [[1996 IMO Problems/Problem 1 | Problem 1]] proposed by Kerkko Luosto, Finland | * [[1996 IMO Problems/Problem 1 | Problem 1]] proposed by Kerkko Luosto, Finland | ||
| Line 416: | Line 416: | ||
== 1997 == | == 1997 == | ||
| − | * [[1997 IMO]] | + | * [[1997 IMO]] (Argentina) |
* [[1997 IMO Problems]] | * [[1997 IMO Problems]] | ||
* [[1997 IMO Problems/Problem 1 | Problem 1]] proposed by Belarus | * [[1997 IMO Problems/Problem 1 | Problem 1]] proposed by Belarus | ||
| Line 427: | Line 427: | ||
== 1998 == | == 1998 == | ||
| − | * [[1998 IMO]] | + | * [[1998 IMO]] (Taiwan) |
* [[1998 IMO Problems]] | * [[1998 IMO Problems]] | ||
* [[1998 IMO Problems/Problem 1 | Problem 1]] proposed by Charles Leytem, Luxembourg | * [[1998 IMO Problems/Problem 1 | Problem 1]] proposed by Charles Leytem, Luxembourg | ||
| Line 438: | Line 438: | ||
== 1999 == | == 1999 == | ||
| − | * [[1999 IMO]] | + | * [[1999 IMO]] (Romania) |
* [[1999 IMO Problems]] | * [[1999 IMO Problems]] | ||
* [[1999 IMO Problems/Problem 1 | Problem 1]] proposed by Jan Villemson, Estonia | * [[1999 IMO Problems/Problem 1 | Problem 1]] proposed by Jan Villemson, Estonia | ||
| Line 449: | Line 449: | ||
== 2000 == | == 2000 == | ||
| − | * [[2000 IMO]] | + | * [[2000 IMO]] (South-Korea) |
* [[2000 IMO Problems]] | * [[2000 IMO Problems]] | ||
* [[2000 IMO Problems/Problem 1 | Problem 1]] proposed by Sergei Berlov, Russia | * [[2000 IMO Problems/Problem 1 | Problem 1]] proposed by Sergei Berlov, Russia | ||
| Line 460: | Line 460: | ||
== 2001 == | == 2001 == | ||
| − | * [[2001 IMO]] | + | * [[2001 IMO]] (USA) |
* [[2001 IMO Problems]] | * [[2001 IMO Problems]] | ||
* [[2001 IMO Problems/Problem 1 | Problem 1]] proposed by Hojoo Lee, South Korea | * [[2001 IMO Problems/Problem 1 | Problem 1]] proposed by Hojoo Lee, South Korea | ||
| Line 471: | Line 471: | ||
== 2002 == | == 2002 == | ||
| − | * [[2002 IMO]] | + | * [[2002 IMO]] (United Kingdom) |
* [[2002 IMO Problems]] | * [[2002 IMO Problems]] | ||
* [[2002 IMO Problems/Problem 1 | Problem 1]] proposed by Federico Ardila, Colombia | * [[2002 IMO Problems/Problem 1 | Problem 1]] proposed by Federico Ardila, Colombia | ||
| Line 482: | Line 482: | ||
== 2003 == | == 2003 == | ||
| − | * [[2003 IMO]] | + | * [[2003 IMO]] (Japan) |
* [[2003 IMO Problems]] | * [[2003 IMO Problems]] | ||
* [[2003 IMO Problems/Problem 1 | Problem 1]] proposed by Carlos Gustavo Moreira, Brazil | * [[2003 IMO Problems/Problem 1 | Problem 1]] proposed by Carlos Gustavo Moreira, Brazil | ||
| Line 493: | Line 493: | ||
== 2004 == | == 2004 == | ||
| − | * [[2004 IMO]] | + | * [[2004 IMO]] (Greece) |
* [[2004 IMO Problems]] | * [[2004 IMO Problems]] | ||
* [[2004 IMO Problems/Problem 1 | Problem 1]] proposed by Valentin Vornicu and Dinu Serbanescu, Romania | * [[2004 IMO Problems/Problem 1 | Problem 1]] proposed by Valentin Vornicu and Dinu Serbanescu, Romania | ||
| Line 504: | Line 504: | ||
== 2005 == | == 2005 == | ||
| − | * [[2005 IMO]] | + | * [[2005 IMO]] (Mexico) |
* [[2005 IMO Problems]] | * [[2005 IMO Problems]] | ||
* [[2005 IMO Problems/Problem 1 | Problem 1]] proposed by Bogdan Enescu, Romania | * [[2005 IMO Problems/Problem 1 | Problem 1]] proposed by Bogdan Enescu, Romania | ||
| Line 515: | Line 515: | ||
== 2006 == | == 2006 == | ||
| − | * [[2006 IMO]] | + | * [[2006 IMO]] (Slovenia) |
* [[2006 IMO Problems]] | * [[2006 IMO Problems]] | ||
* [[2006 IMO Problems/Problem 1 | Problem 1]] proposed by Hojoo Lee, South Korea | * [[2006 IMO Problems/Problem 1 | Problem 1]] proposed by Hojoo Lee, South Korea | ||
Revision as of 07:34, 30 January 2007
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
- 47 2005
- 48 2006
- 49 See also
1959
- 1959 IMO (Romania)
- 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 (Romania)
- 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 East Germany
1961
- 1961 IMO (Hungary)
- 1961 IMO Problems
- Problem 1 proposed by Hungary
- Problem 2 proposed by Poland
- Problem 3 proposed by Bulgaria
- Problem 4 proposed by East Germany
- Problem 5 proposed by Czechoslovakia
- Problem 6 proposed by Romania
1962
- 1962 IMO (Czechoslovakia)
- 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 East Germany
- Problem 7 proposed by USSR
1963
- 1963 IMO (Poland)
- 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 East Germany
- Problem 6 proposed by Hungary
1964
- 1964 IMO (USSR)
- 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 (East Germany)
- 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 (Bulgaria)
- 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 (Yugoslavia)
- 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 (USSR)
- 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 East Germany
- Problem 6 proposed by United Kingdom
1969
- 1969 IMO (Romania)
- 1969 IMO Problems
- Problem 1 proposed by East 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 (Hungary)
- 1970 IMO Problems
- Problem 1 proposed by Poland
- Problem 2 proposed by Romania
- Problem 3 proposed by Sweden
- Problem 4 proposed by Czechoslovakia
- Problem 5 proposed by Bulgaria
- Problem 6 proposed by USSR
1971
- 1971 IMO (Czechoslovakia)
- 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 (Poland)
- 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 (USSR)
- 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 (East Germany)
- 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 (Bulgaria)
- 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 (Austria)
- 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 (Yugoslavia)
- 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 West Germany
- Problem 6 proposed by Bulgaria
1978
- 1978 IMO (Romania)
- 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 (United Kingdom)
- 1979 IMO Problems
- Problem 1 proposed by West Germany
- Problem 2 proposed by Bulgaria
- Problem 3 proposed by USSR
- Problem 4 proposed by USA
- Problem 5 proposed by Israel
- Problem 6 proposed by West Germany
1980
1981
- 1981 IMO (USA)
- 1981 IMO Problems
- Problem 1 proposed by United Kingdom
- Problem 2 proposed by West Germany
- Problem 3 proposed by Netherlands
- Problem 4 proposed by Belgium
- Problem 5 proposed by USSR
- Problem 6 proposed by Finland
1982
- 1982 IMO (Hungary)
- 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
- 1983 IMO (France)
- 1983 IMO Problems
- Problem 1 proposed by United Kingdom
- Problem 2 proposed by I.F. Sharygin, USSR
- Problem 3 proposed by West Germany
- Problem 4 proposed by Belgium
- Problem 5 proposed by Poland
- Problem 6 proposed by USA
1984
- 1984 IMO (Czechoslovakia)
- 1984 IMO Problems
- Problem 1 proposed by West Germany
- Problem 2 proposed by Netherlands
- Problem 3 proposed by Romania
- Problem 4 proposed by Romania
- Problem 5 proposed by Mongolia
- Problem 6 proposed by Poland
1985
- 1985 IMO (Finland)
- 1985 IMO Problems
- Problem 1 proposed by United Kingdom
- Problem 2 proposed by Australia
- Problem 3 proposed by Netherlands
- Problem 4 proposed by Mongolia
- Problem 5 proposed by USSR
- Problem 6 proposed by Sweden
1986
- 1986 IMO (Poland)
- 1986 IMO Problems
- Problem 1 proposed by West Germany
- Problem 2 proposed by Gengzhe Chang and Dongxu Qi, China
- Problem 3 proposed by Elias Wegert, East Germany
- Problem 4 proposed by Iceland
- Problem 5 proposed by United Kingdom
- Problem 6 proposed by Konrad Engel, East Germany
1987
- 1987 IMO (Cuba)
- 1987 IMO Problems
- Problem 1 proposed by West Germany
- Problem 2 proposed by I.A.Kushnir, USSR
- Problem 3 proposed by West Germany
- Problem 4 proposed by Vietnam
- Problem 5 proposed by East Germany
- Problem 6 proposed by V.F.Lev, USSR
1988
- 1988 IMO (Australia)
- 1988 IMO Problems
- Problem 1 proposed by Lucien Kieffer, Luxembourg
- Problem 2 proposed by Czechoslovakia
- Problem 3 proposed by United Kingdom
- Problem 4 proposed by Finbarr Holland, Ireland
- Problem 5 proposed by Dimitris Kontogiannis, Greece
- Problem 6 proposed by West Germany
1989
- 1989 IMO (Germany)
- 1989 IMO Problems
- Problem 1 proposed by Philippines
- Problem 2 proposed by Australia
- Problem 3 proposed by Hendrikus Gerardus Derksen, Netherlands
- Problem 4 proposed by Iceland
- Problem 5 proposed by Sweden
- Problem 6 proposed by Marcin Kuczma, Poland
1990
- 1990 IMO (China)
- 1990 IMO Problems
- Problem 1 proposed by India
- Problem 2 proposed by Czechoslovakia
- Problem 3 proposed by Laurentin Panaitopol, Romania
- Problem 4 proposed by Turkey
- Problem 5 proposed by Germany
- Problem 6 proposed by Hendrikus Gerardus Derksen, Netherlands
1991
- 1991 IMO (Sweden)
- 1991 IMO Problems
- Problem 1 proposed by USSR
- Problem 2 proposed by Romania
- Problem 3 proposed by Chengzhang Li, China
- Problem 4 proposed by USA
- Problem 5 proposed by Johan Yebbou, France
- Problem 6 proposed by Hendrikus Gerardus Derksen, Netherlands
1992
- 1992 IMO (Russia)
- 1992 IMO Problems
- Problem 1 proposed by New Zealand
- Problem 2 proposed by India
- Problem 3 proposed by Chengzhang Li, China
- Problem 4 proposed by Johan Yebbou, France
- Problem 5 proposed by Italy
- Problem 6 proposed by Tony Gardiner, United Kingdom
1993
- 1993 IMO (Turkey)
- 1993 IMO Problems
- Problem 1 proposed by Tom Laffey, Ireland
- Problem 2 proposed by David Monk, United Kingdom
- Problem 3 proposed by Kerkko Luosto, Finland
- Problem 4 proposed by Macedonia
- Problem 5 proposed by Elias Wegert, Germany
- Problem 6 proposed by Nicholas de Bruijn, Netherlands
1994
- 1994 IMO (Hong Kong)
- 1994 IMO Problems
- Problem 1 proposed by Vincent Lafforgue, France
- Problem 2 proposed by Hans Lausch, Australia and Armenia independently
- Problem 3 proposed by Romania
- Problem 4 proposed by Australia
- Problem 5 proposed by United Kingdom
- Problem 6 proposed by Kerkko Luosto, Finland
1995
- 1995 IMO (Canada)
- 1995 IMO Problems
- Problem 1 proposed by Bulgaria
- Problem 2 proposed by Nazar Agakhanov, Russia
- Problem 3 proposed by Karel Horak, Czech Republic
- Problem 4 proposed by Marcin Kuczma, Poland
- Problem 5 proposed by New Zealand
- Problem 6 proposed by Marcin Kuczma, Poland
1996
- 1996 IMO (India)
- 1996 IMO Problems
- Problem 1 proposed by Kerkko Luosto, Finland
- Problem 2 proposed by Canada
- Problem 3 proposed by Romania
- Problem 4 proposed by Alexander Golovanov, Russia
- Problem 5 proposed by Nairi Sedrakyan, Armenia
- Problem 6 proposed by Laurent Rosaz, France
1997
- 1997 IMO (Argentina)
- 1997 IMO Problems
- Problem 1 proposed by Belarus
- Problem 2 proposed by David Monk, United Kingdom
- Problem 3 proposed by Russia
- Problem 4 proposed by Iran
- Problem 5 proposed by Petr Kanovsky, Czech Republic
- Problem 6 proposed by Giedrius Alkauskas, Lithuania
1998
- 1998 IMO (Taiwan)
- 1998 IMO Problems
- Problem 1 proposed by Charles Leytem, Luxembourg
- Problem 2 proposed by India
- Problem 3 proposed by Belarus
- Problem 4 proposed by David Monk, United Kingdom
- Problem 5 proposed by Ukraine
- Problem 6 proposed by Nikolai Nikolov and Oleg Mushkarov, Bulgaria
1999
- 1999 IMO (Romania)
- 1999 IMO Problems
- Problem 1 proposed by Jan Villemson, Estonia
- Problem 2 proposed by Marcin Kuczma, Poland
- Problem 3 proposed by E. Barabanov and I. Voronovich, Belarus
- Problem 4 proposed by Taiwan
- Problem 5 proposed by P. Kozhevnikov, Russia
- Problem 6 proposed by Japan
2000
- 2000 IMO (South-Korea)
- 2000 IMO Problems
- Problem 1 proposed by Sergei Berlov, Russia
- Problem 2 proposed by Titu Andreescu, USA
- Problem 3 proposed by Belarus
- Problem 4 proposed by Sandor Dobos, Hungary
- Problem 5 proposed by Valerii Senderov, Russia
- Problem 6 proposed by Lev and Tatiana Emelianovii, Russia
2001
- 2001 IMO (USA)
- 2001 IMO Problems
- Problem 1 proposed by Hojoo Lee, South Korea
- Problem 2 proposed by Hojoo Lee, South Korea
- Problem 3 proposed by Christian Bey, Germany
- Problem 4 proposed by Bill Sands, Canada
- Problem 5 proposed by Toshio Seimiya, Japan (see Crux Mathematicorum problem 2501)
- Problem 6 proposed by Alexander Ivanov, Bulgaria
2002
- 2002 IMO (United Kingdom)
- 2002 IMO Problems
- Problem 1 proposed by Federico Ardila, Colombia
- Problem 2 proposed by Hojoo Lee, South Korea
- Problem 3 proposed by Laurentin Panaitopol, Romania
- Problem 4 proposed by Mihai Manea, Romania
- Problem 5 proposed by B.J.Venkatachala, India
- Problem 6 proposed by Vyacheslav Yasinsky, Ukraine
2003
- 2003 IMO (Japan)
- 2003 IMO Problems
- Problem 1 proposed by Carlos Gustavo Moreira, Brazil
- Problem 2 proposed by Bulgaria
- Problem 3 proposed by Poland
- Problem 4 proposed by Matti Lehtinen, Finland
- Problem 5 proposed by Finbarr Holland, Ireland
- Problem 6 proposed by Johan Yebbou, France
2004
- 2004 IMO (Greece)
- 2004 IMO Problems
- Problem 1 proposed by Valentin Vornicu and Dinu Serbanescu, Romania
- Problem 2 proposed by Hojoo Lee, South Korea
- Problem 3 proposed by Jan Villemson, Estonia
- Problem 4 proposed by Hojoo Lee, South Korea
- Problem 5 proposed by Poland
- Problem 6 proposed by Mohsen Jamali, Iran
2005
- 2005 IMO (Mexico)
- 2005 IMO Problems
- Problem 1 proposed by Bogdan Enescu, Romania
- Problem 2 proposed by Nicholas de Bruijn, Netherlands
- Problem 3 proposed by Hojoo Lee, South Korea
- Problem 4 proposed by Poland
- Problem 5 proposed by Poland
- Problem 6 proposed by Radu Gologan, Romania
2006
- 2006 IMO (Slovenia)
- 2006 IMO Problems
- Problem 1 proposed by Hojoo Lee, South Korea
- Problem 2 proposed by Dušan Djukić, Serbia
- Problem 3 proposed by Finbarr Holland, Ireland
- Problem 4 proposed by Zuming Feng, USA
- Problem 5 proposed by Romania
- Problem 6 proposed by Dušan Djukić, Serbia
