01
The problem
Publish the first qualifying paper that demonstrates an essential and inherent flaw in Shinichi Mochizuki’s inter-universal Teichmüller theory.
Date noteThis is a falsification challenge about IUT, not a direct prize for proving or disproving the abc conjecture.
Open since2023challenge launch
Last checked2026.07.26Catalog verification
02
Reward offers
Offer 01$1,000,000Nobuo Kawakami
Personal offerThe paper must be peer reviewed and accepted by a qualifying MathSciNet-indexed journal. Kawakami is the sole final adjudicator and the evaluation method is not disclosed.
Private adjudication with opaque criteria; community status is disputed.