The bread and butter of Olympiad geometry.
While Chen’s book is more comprehensive and modern, Andreescu’s "106 Problems" is often seen as a better intermediate workbook . It provides a high density of high-quality problems without the 400-page commitment of a full-scale encyclopedia. How to Study Effectively
These problems were curated for the , meaning they have been "battle-tested" by some of the brightest young minds in the world. The hints and solutions reflect the common pitfalls and "aha!" moments experienced by students in real-time. Key Topics Covered
