International Mathematical Olympiad

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IMO 2025

2026Problem sheet

66th International Mathematical Olympiad. Sunshine Coast, 2025.

IMO 2024

2026Problem sheet

65th International Mathematical Olympiad, 2024.

IMO 2023

2026Problem sheet

64th International Mathematical Olympiad. Chiba, Japan, 2023.

IMO 2022

2026Problem sheet

63rd International Mathematical Olympiad. Oslo, 2022.

IMO 2021

2026Problem sheet

62nd International Mathematical Olympiad, 2021.

IMO 2020

2026Problem sheet

61st International Mathematical Olympiad, 2020.

IMO 2019

2026Problem sheet

60th International Mathematical Olympiad, 2019.

IMO 2018

2026Problem sheet

59th International Mathematical Olympiad. Cluj-Napoca, Romania, 2018.

IMO 2017

2026Problem sheet

58th International Mathematical Olympiad. Rio de Janeiro, Brazil, 2017.

IMO 2016

2026Problem sheet

57th International Mathematical Olympiad. Hong Kong, 2016.

IMO 2015

2026Problem sheet

56th International Mathematical Olympiad. Thailand, 2015.

IMO 2014

2026Problem sheet

55th International Mathematical Olympiad. Cape Town, South Africa, 2014.

IMO 2013

2026Problem sheet

54th International Mathematical Olympiad. Colombia, 2013.

IMO 2012

2026Problem sheet

53rd International Mathematical Olympiad. Mar del Plata, Argentina, 2012.

IMO 2011

2026Problem sheet

52nd International Mathematical Olympiad. Amsterdam, 2011.

IMO 2010

2026Problem sheet

51st International Mathematical Olympiad, 2010.

IMO 2009

2026Problem sheet

50th International Mathematical Olympiad. Bremen, Germany, 2009.

IMO 2008

2026Problem sheet

49th International Mathematical Olympiad. Madrid, Spain, 10-22 July 2008.

IMO 2007

2026Problem sheet

48th International Mathematical Olympiad, 2007.

IMO 2006

2026Problem sheet

International mathematics competition for pre-university students, held annually since 1959. Six problems over two days.