: Features problems from 27 national and regional mathematical contests held around the world during the 2000–2001 period.

: Spend at least 2–3 days on a single difficult problem before checking the solution. The "joy of discovery" is essential for developing deep mathematical intuition .

Before diving into the book's complex problems, ensure proficiency in the following core areas:

: Even if you cannot reach a final answer, write down your key observations. In competitive math, partial arguments can earn 1–3 marks out of 7.

If the problems in the 2000–2001 collection feel too advanced, bridge the gap with these highly recommended texts :