Listing of Famous Competition Problems Highlighted in 3Blue1Brown Videos, Lacking Specific Equations or Ratio Links — E8 Intelligence Research

FINDING: The sources enumerate several famously challenging competition problems featured in 3Blue1Brown videos (Putnam question, unsolvable‑by‑AI IMO problem, 2011 IMO windmill problem, Collatz conjecture, and the MATH dataset). | MATH: No specific equations, constants, or ratios are presented in the provided excerpts. | CONNECTION: No explicit links to geometric harmony ratios (0.382, 0.618, 0.786, 1.618, 2.618), base‑60 mathematics, or crystallographic symmetry are mentioned in the excerpts. | DEPTH: 2 (the list identifies problem topics but does not convey any mathematical insight, derivation, or structural connection). Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com