Which is the Hardest Olympiad Exam to Crack?

The International Mathematical Olympiad (IMO) is widely considered the hardest Olympiad exam. It’s known for extremely challenging math problems that test creativity, logic, and deep thinking—not memorization. Students solve just 6 questions over 2 days, but each problem can take hours to crack.

Other tough Olympiads include:

• International Physics Olympiad (IPhO) – Hard due to complex theory and experiments.
• International Chemistry Olympiad (IChO) – Demands deep chemical knowledge and lab skills.
• International Olympiad in Informatics (IOI) – Focused on advanced programming and algorithms.

IMO is the toughest overall, but the hardest Olympiad depends on your strengths. If you love math, IMO is the ultimate challenge. If you’re into coding or science, IOI or IPhO might feel harder.