Western China Mathematics Invitational
The Western China Mathematics Invitational (中国西部数学邀请赛) is an olympiad-style competition for secondary-school students in China. Its papers feature proof-based problems in algebra, combinatorics, geometry, and number theory.
This section collects English translations of the competition papers, together with solution notes and observations about useful techniques.
Begin with the 2026 Western China Mathematics Invitational.