Proposed Release Schedule for New Problems
- Problem 639 will be accessible in 1 hour, 3 minutes (Sunday, 21st October 2018, 07:00 am)
- Problem 640 is scheduled for Sunday, 28th October 2018, 10:00 am
- Problem 641 is scheduled for Saturday, 3rd November 2018, 01:00 pm
- Problem 642 is scheduled for Saturday, 10th November 2018, 04:00 pm
- Problem 643 is scheduled for Saturday, 17th November 2018, 07:00 pm
- Problem 644 is scheduled for Saturday, 24th November 2018, 10:00 pm
- Problem 645 is scheduled for Sunday, 2nd December 2018, 01:00 am
20 October 2018: Weekly Publication Schedule
About a year ago we decided to reduce the release of new problems to one problem every two weeks.
Thanks to the many contributions made by our members we now have enough problems in stock to release one problem every week. Because we don't want the authors to wait too long before their problem is published we make the following decision: At the start of each new batch of problems (usually 6 problems) we will make a decision to release those problems weekly if there are sufficient problems in stock; otherwise we will follow a two-weekly schedule for that batch of problems. At the top of news page you can always see when new problems are released.
We hope that members will keep contributing enough proposals to maintain a weekly publication scheme.
25 September 2018: Progress Page Change
Just in case you thought your Progress page was broken, a small and deliberate change has been made to the colour scheme on the grid showing which problems you have solved. Along with being more in-keeping with the general site colour scheme, the shading indicates the relative difficulty of the problems. Hopefully the changes aren't too distracting and will serve to provide more useful information on that page.
27 May 2018: Project Euler and the GDPR
As many of you will know, the law concerning any data held by European citizens: General Data Protection Regulation (GDPR), came into effect on 25 May 2018. Not only is the website hosted in Europe, but a large proportion of our membership also live within Europe, so this legislation affects us.
We hope that you are happy with the outcome of our review and continue to enjoy being a part of the Project Euler community.
18 February 2018: Changing Statistical Data View
It is now possible to change the statistical data shown on the Statistics pages from the default view of all registered members to active members only; that is, members who have solved a problem within the last 365 days.
10 February 2018: New BBCode [Collapse]
A recent BBCode has been added to the forum: [collapse], allowing members to post blocks of text that can be expanded and collapsed. It works in the same way as the code block, except you can use any other formatted text within it, including TeX. For more information on the usage of this tag and the others, then please see:
It may be useful when you wish to post a lengthy section of text (for example, proofs or program output) which might otherwise interfere with the brevity of your post. Similarly if you wish to hide solutions/spoilers relating to extension questions posed by members on the current problem.
On the subject of spoilers, it has been noted on occasion that some members have posted comments like, "I used the same code to solve problem XXX" or "By changing your algorithm in the following way you can solve problem YYY". We understand that this has always been well meaning, but other members may not have solved that problem yet and would like to tackle it independently for themselves. So we would ask that members, when referring to other problems, hide the reference with the hide tag or the new collapse tag for longer replies; see link above for usage.