Bonus Problems

A place to air possible concerns or difficulties in understanding ProjectEuler problems. This forum is not meant to publish solutions. This forum is NOT meant to discuss solution methods or giving hints how a problem can be solved.
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Comments, questions and clarifications about PE problems.
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HeavyCrab
Posts: 3
Joined: Fri Sep 05, 2025 4:47 am

Bonus Problems

Post by HeavyCrab »

I haven’t been solving PE in 8 years. A few days ago, I just returned and solved a few problems from the "Recent" list, which unlocked Bonus Problem #5 — and I managed to solve it, which was a lot of fun!
I’m wondering if Project Euler has publicly documented the rules for unlocking Bonus Problems? Also, is there a way to view the number of people who have solved a Bonus Problem or its difficulty rating?
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