Difference between revisions of "IMO Problems and Solutions"

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* [[2014 IMO Problems/Problem 1 | Problem 1]] proposed by Gerhard Woeginger, Austria
 
* [[2014 IMO Problems/Problem 1 | Problem 1]] proposed by Gerhard Woeginger, Austria
 
* [[2014 IMO Problems/Problem 2 | Problem 2]] proposed by Tonči Kokan, Croatia
 
* [[2014 IMO Problems/Problem 2 | Problem 2]] proposed by Tonči Kokan, Croatia
* [[2014 IMO Problems/Problem 3 | Problem 3]] proposed by Iran
+
* [[2014 IMO Problems/Problem 3 | Problem 3]] proposed by Iranian PSC, Iran
 
* [[2014 IMO Problems/Problem 4 | Problem 4]] proposed by Giorgi Arabidze, Georgia
 
* [[2014 IMO Problems/Problem 4 | Problem 4]] proposed by Giorgi Arabidze, Georgia
 
* [[2014 IMO Problems/Problem 5 | Problem 5]] proposed by Luxembourg
 
* [[2014 IMO Problems/Problem 5 | Problem 5]] proposed by Luxembourg
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* [[2016 IMO]] (in Hong Kong)
 
* [[2016 IMO]] (in Hong Kong)
 
* [[2016 IMO Problems/Problem 1 | Problem 1]] proposed by Belgium
 
* [[2016 IMO Problems/Problem 1 | Problem 1]] proposed by Belgium
* [[2016 IMO Problems/Problem 2 | Problem 2]] proposed by Australia
+
* [[2016 IMO Problems/Problem 2 | Problem 2]] proposed by Trevor Tao, Australia
 
* [[2016 IMO Problems/Problem 3 | Problem 3]] proposed by Russia
 
* [[2016 IMO Problems/Problem 3 | Problem 3]] proposed by Russia
 
* [[2016 IMO Problems/Problem 4 | Problem 4]] proposed by Luxembourg
 
* [[2016 IMO Problems/Problem 4 | Problem 4]] proposed by Luxembourg
 
* [[2016 IMO Problems/Problem 5 | Problem 5]] proposed by Russia
 
* [[2016 IMO Problems/Problem 5 | Problem 5]] proposed by Russia
* [[2016 IMO Problems/Problem 6 | Problem 6]] proposed by Czech Republic
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* [[2016 IMO Problems/Problem 6 | Problem 6]] proposed by Josef Tkadlec, Czech Republic
  
 
== Comment ==
 
== Comment ==

Revision as of 13:07, 24 July 2016

This page lists the authors and the proposing countries of the problems of the IMO.

1959

1960

1961

1962

1963

1964

1965

1966

1967

1968

1969

1970

1971

1972

1973

1974

1975

1976

1977

1978

1979

  • 1979 IMO (in United Kingdom)
  • Problem 1 proposed by Arthur Engel, West Germany
  • Problem 2 proposed by Nickolay Khadzhiivanov and Nedjalko Nenov, Bulgaria
  • Problem 3 proposed by Nikolai Vasil'ev and Igor F. Sharygin, USSR
  • Problem 4 proposed by Murray Klamkin, USA
  • Problem 5 proposed by Joe Gillis, Israel
  • Problem 6 proposed by Arthur Engel, West Germany

1980

There was no IMO in 1980

1981

1982

1983

1984

1985

1986

1987

1988

1989

1990

1991

1992

1993

1994

  • 1994 IMO (in Hong Kong)
  • Problem 1 proposed by Vincent Lafforgue, France
  • Problem 2 proposed by Hans Lausch, Australia and Garnik Tonoyan, Armenia (independently)
  • Problem 3 proposed by Gabriel Istrate, Romania
  • Problem 4 proposed by Hans Lausch, Australia
  • Problem 5 proposed by David Monk, United Kingdom
  • Problem 6 proposed by Kerkko Luosto, Finland

1995

1996

1997

  • 1997 IMO (in Argentina)
  • Problem 1 proposed by Igor Akylich and Igor Voronovich, Belarus
  • Problem 2 proposed by David Monk, United Kingdom
  • Problem 3 proposed by Oleg Bogopolsky, Russia
  • Problem 4 proposed by Ebadollah S. Mahmoodian and Mohammad Mahdian, Iran
  • Problem 5 proposed by Petr Kanovsky, Czech Republic
  • Problem 6 proposed by Giedrius Alkauskas, Lithuania

1998

1999

2000

2001

  • 2001 IMO (in USA)
  • 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 Shay Gueron, Israel. (Also: Problem 2501 in Crux Mathematicorum, February 2000)
  • Problem 6 proposed by Aleksander Ivanov, Bulgaria

2002

2003

2004

2005

2006

2007

2008

2009

2010

2011

2012

2013

  • 2013 IMO (in Colombia)
  • Problem 1 proposed by Japanese PSC, Japan
  • Problem 2 proposed by Ivan Guo, Australia
  • Problem 3 proposed by Alexander A. Polyansky, Russia
  • Problem 4 proposed by Warut Suksompong and Potcharapol Suteparuk, Thailand
  • Problem 5 proposed by Nikolai Nikolov, Bulgaria
  • Problem 6 proposed by Alexander S. Golovanov and Mikhail A. Ivanov, Russia

2014

2015

  • 2015 IMO (in Thailand)
  • Problem 1 proposed by Merlijn Staps, Netherlands
  • Problem 2 proposed by Dušan Djukić, Serbia
  • Problem 3 proposed by Danylo Khilko and Mykhailo Plotnikov, Ukraine
  • Problem 4 proposed by Silouanos Brazitikos and Evangelos Psychas, Greece
  • Problem 5 proposed by Dorlir Ahmeti, Albania
  • Problem 6 proposed by Ross Atkins and Ivan Guo, Australia

2016

Comment

This page lists the authors and the proposing countries of the problems of the IMO.

For many problems, the composers do not have the nationality of the proposing country. For instance, problem 2009/4 was proposed by Belgium, but only two of the three problem authors were Belgian, whereas the third is from South-Korea.

To the current moment, there is only a single IMO problem that has two distinct proposing countries: The if-part of problem 1994/2 was proposed by Australia and its only-if part by Armenia.

See also