World Junior Mathematics Championship
Ages 13 and under
Seven levels, played online; the top 100 meet for the final in Disentis, Switzerland, 11–14 October 2027.
How it works
RegisterA parent opens the account; the child plays under an alias. A parent opens the account and holds it. The child plays under an alias with their own login; Euler asks for the year of birth, never a name.
Play the levelsSeven levels, Explorer to Genius, ten problems an adventure. Seven levels, Explorer to Genius, each a run of adventures: ten problems a time, almost no words, calculator allowed, openly. The seven levels →
Qualify for DisentisThe World Rankings decide; the top 100 meet for the final. The World Rankings order every player by Level, adventures finished and Accuracy. The top 100 meet for the final in Disentis. About the championship →
Ages 13 and underBorn on or after 1 January 2014, anywhere in the world. Children 13 or younger on 31 December 2027. A parent or guardian registers them; a child cannot open an account.
Free to qualifyRegistering and playing cost nothing; nothing is sold to a child. Everything that counts for the rankings is included for every child; a paid plan buys the parent insight, never the child an advantage.
An alias, never a nameEuler asks for the year of birth, never a name. Your child plays under an alias with their own login. Public boards show the alias and the country, never a name, never a school. You see everything and can delete it. Privacy for parents →
Disentis, 11–14 October 2027The 100 qualifiers meet for the final in Switzerland. One hundred qualifiers from across the globe, by three roads: accredited institutions, the seven-level journey played here, and verified nominations. The full rules are published before the qualifying rounds open. About the championship →
Organiser: Swiss eduGLOBE AG, 7180 Disentis/Mustér, Switzerland · Questions: euler100@euler.swiss Every Faculty member is identity-checked and safeguarding-vetted before a child meets them. Nothing is sold to a child, no advertising, no tracking — Swiss-hosted, parent-first. About the championship →