Titu Andreescu 106 Geometry Problems Pdf 2021 ((link))

The difficulty is not strictly increasing. Problem 1 might be easy (AIME #10), while Problem 48 could be IMO 2008 #1 (a known killer). The authors intentionally shuffle difficulty to simulate a real contest—you never know what comes next.

The book is not just a list of problems; it is a structured curriculum designed to bridge the gap between school-level geometry and the rigorous demands of Olympiad-level proofs. titu andreescu 106 geometry problems pdf 2021

If you cannot afford the ~$35 price, consider forming a study group: five students split the cost and share a single PDF via private email (allowed for educational non-commercial use in many jurisdictions). The difficulty is not strictly increasing