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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 Andreescu is more focused on modern competition style
Here is why this specific collection is widely considered "better" than standard geometry resources and how to use it to transform your problem-solving skills. What Makes This Book Different? titu andreescu 106 geometry problems pdf better