2025
Taiwan
- 1Dzongkhanot published
- 2Gaahmgnot published
- 3Kurianot published
- 4Kewanot published
- 5Kaqchikelnot published
IOL Problems and Solutions
Running since 2003. Contestants are given self-contained puzzles in languages they have almost certainly never seen, so knowing a language in advance helps nobody: everything needed is on the page. There is an individual contest and a team contest.
2024
Brazil
2023
Bulgaria
- 1Guazacapán Xinkanot published
- 2Apurinãnot published
- 3Coastal Marindnot published
- 4Plains Creenot published
- 5Supyirenot published
2022
Isle of Man
- 1Ubykhnot published
- 2Alabamanot published
- 3Nǀuuki (Nǁng)not published
- 4Arabananot published
- 5Proto-Chamic, Phan Rang Cham and Tsatnot published
2021
Latvia
- 1Ekarinot published
- 2Zuninot published
- 3Kilivilanot published
- 4Agbirigbanot published
- 5Rikbaktsanot published
2019
South Korea
- 1Yonggomnot published
- 2Yuroknot published
- 3Book Pahlavi scriptnot published
- 4West Tarangannot published
- 5Nooninot published
2018
Czechia
- 1Creeknot published
- 2Hakhunnot published
- 3Terênanot published
- 4Mountain Arapesh (Bukiyip)not published
- 5Akannot published
2017
Ireland
- 1Biromnot published
- 2Abuinot published
- 3Kimbundunot published
- 4Khom script/Lavennot published
- 5Madaknot published
2016
India
2015
Bulgaria
- 1Nahuatl and Arammbanot published
- 2Kabardiannot published
- 3Soundexnot published
- 4Wambayanot published
- 5Somali Masafonot published
2014
China
2013
United Kingdom
2012
Slovenia
2011
United States
2010
Sweden
2009
Poland
2008
Bulgaria
2007
Russia
2006
Estonia
2005
Netherlands
2004
Russia
2003
Bulgaria
Individual Contest8 problems
- 1Transcendental AlgebraProblemSolutionIOL 2003 problem 1, Transcendental Algebra
- 2Arabic ArithmeticProblemSolutionIOL 2003 problem 2, Arabic Arithmetic
- 3Basque DatesProblemSolutionIOL 2003 problem 3, Basque Dates
- 4AdygheProblemSolutionIOL 2003 problem 4, Adyghe
- 5FrenchProblemSolutionIOL 2003 problem 5, French
- 6Team 1: TocharianProblemSolutionIOL 2003 problem 6, Team 1: Tocharian
- 7Team 2: SubscriptsProblemSolutionIOL 2003 problem 7, Team 2: Subscripts
- 8Team 3: VerbsProblemSolutionIOL 2003 problem 8, Team 3: Verbs
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