Project Euler Forum

If I click Statistics → Ranks, I see “You are currently ranked among the Octahedrons (Page 12).” I click the link, and see the ranks 1101-1200 (as it should be). But I am not on that page. I am on page 13 (rank 1212).

I guess "page 12" is the correct part and "rank 1212" is incorrect (I solved two problems yesterday).

It's displaying fine now. I can't believe I'd not anticipated this before now, but the issue is that the member ranks are updated each day at around 1.15am (UTC). However, the statistics tables are cached for 12 hours and it probably hadn't updated when you looked. I've just modified the script to delete all the cached tables related to ranks when the member ranks update, so you should get an up to date view.

Looking at the stats for awards, I see 927 members have the “CC for Continued Commitment”
for completing any two grids, but only 923 members have the far easier “Two Halves Make a Whole”. That should not be possible.

Another oddity is that 1002 members have the Rising Star “Join the top 5500 ranked members”. Shouldn’t it be at least 5500 who have the award, or is it the process of joining?

Or are awards only given to active members?

Awards "unlock" when you solve a problem or you visit your Awards page. So those members haven't done either since those awards were introduced.

It looks like the wiki link on https://projecteuler.net/problem=339 no longer points to what it used to: https://en.wikisource.org/wiki/The_Mabi ... _of_Evrawc I find is a stubbed page.

Thank you. I've fixed the link.

Really minor weirdness detected - I was going through my Progress/History page (April 29th is the 10th anniversary of my first solve ), and I noticed that my 19 Apr 2018 solve of PE214 is circled as Opted Out. Which is strange, because that problem is from before the fastest solvers tables, so I don't think there's any way I could have accidentally opted out of anything. Random database corruption?

FS tables exist.much longer than that
But I agree: the lowest numbered problem with an FS table is 277

Pressing the back button on e.g. this page https://projecteuler.net/rank=Icosahedron goes to this old url https://projecteuler.net/ranks which is broken, instead of the real url https://projecteuler.net/member_ranks that we want to use. I think it just got left behind when /ranks got changed to /member_ranks and /problem_ranks.

Possible bug: font of Project Euler changed for me from an unknown font (Image 1) to Inter (Image 2). In Image 3 is the console error I get.





(If, for some reason, the images do not load, here are their URLs: https://ibb.co/KpXcd0Nd [Image 1], https://ibb.co/hR4PCD9S [Image 2], https://ibb.co/S4Gkyr51 [Image 3])

Thank you for the information. You are right about the errors. I have modified the security headers to address the issue. Hopefully it should be sorted.

By the way, I think the reason the images don't work in the BBCode is because phpBB is strict about the format of the URL and as it lacks an image extension it ignores it. That would work fine on the main site. If you want to upload an image here, when you are making a post you can click Attachments below the text area and upload the actual images to the server, then you can click the link to add it inline.

heteroing wrote: Sat May 23, 2026 8:00 am Pressing the back button on e.g. this page https://projecteuler.net/rank=Icosahedron goes to this old url https://projecteuler.net/ranks which is broken, instead of the real url https://projecteuler.net/member_ranks that we want to use. I think it just got left behind when /ranks got changed to /member_ranks and /problem_ranks.

I forgot about that. Thank you for letting me know. It should be fixed.

More link errors: If I click my rank from my progress page, it leads to https://projecteuler.net/rank=Sphere which does not work.

Thanks for that! I've done a more thorough search of all the modules and I think I've got them all now.

Hello! first post here

I noticed my user banner stopped showing my level/stats:
https://projecteuler.net/profile/vyraxo.png

It was working before but I can't tell exactly when it stopped. My account is pretty old, and according to my Progress page I have 51 problems solved before 2013 (so pre-dating the solve date tracking), plus a few more in 2015.

If I request the TXT version:
https://projecteuler.net/profile/vyraxo.txt

it shows "Unranked", which is weird given the solve history.

Any idea what happened? Thanks!

Please see the news article in the news archives from 19 February 2026: https://projecteuler.net/news_archives

You are almost there, but you will need to continue solving to enter the first tiered rank: Tetrahedrons.

euler wrote: Tue Jun 02, 2026 5:12 pm Please see the news article in the news archives from 19 February 2026: https://projecteuler.net/news_archives

You are almost there, but you will need to continue solving to enter the first tiered rank: Tetrahedrons.

Thank you, Euler

With the new fonts, the Progress/Posts table chops off the counts for non-permanent posts:
I see that for all 3 font choices, though OpenDyslexic is not quite as bad as the other two.

Thanks for reporting. It should be fixed now.

The 900s grid is missing its progress bar on the progress page