On the "new Brilliant" feed, problems sometimes have a green circle+triangle by them, and sometimes a white circle+triangle. I guess the green is meant to indicate solved problems, and hollow ones that I have not attempted.

However several that I have previously solved, and that I have previously failed, show as hollow. For example, One of them is https://brilliant.org/mathematics-problem/sequences-and-tables/?group=8rwgFNm6b7Em (I guess this may be a personalized link, but anyway).

This was a problem about 3 weeks ago. At the time I entered 2 answers which were wrong, and then the time ran out and I joined in the discussion.

I clicked on the white circle+triangle to see what would happen. It came up and showed me my two wrong answers but said I had a guess remaining. I entered the right answer (I remembered it from the discussion) and the answer was accepted. However, it then said no solutions had been posted. But there were solutions previously because I read them to find the right answer.

Also, the problem says that it is 7 months old.

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TopNewestMatt, I think the solutions posted by us are deleted after some days and the question set again. This has also happened with me in many problems like "Tanning Around The Earth."

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Another one is "Non-slip tiles" which says it was added 5 days ago.

But I solved it 2 weeks ago and posted a solution, which Calvin L commented on.

If I click on the white circle-and-triangle now it shows that I have solved it but says there are no solutions. What is going on?

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Here's what's going on. In the new layout, the old problems have new sharing links. If you solved a problem in the past, the system recognizes that you solved it even if you use the new sharing link. However, the new links have no solutions. If I'm not making any sense here, this example will help.

Below are two links of the same problem.

1)https://brilliant.org/physics-problem/castle-siege/?group=lNlWyvPtGZ21

2)https://brilliant.org/physics-problem/castle-siege/?group=q0KsLpDxE0hi

Check the links out. They lead to the same problem. I found the first link in the mechanics feed and the second one in my browser history. Both of these links say that I've solved this problem, but the first one has no solutions.

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Is this intentional by Brilliant? Could they change it so that both link to the same one , that has the existing solutions?

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