As many of you know, before 2014, Brilliant problems used to be in a different format. There were new problems written by staff each week, and they were available for only one week. You had to come back in that week in order to view the problem and solve it. When we switched to the newsfeed format, members were no longer able to access these problems, because they were in a different format from the newsfeed problems.
Our team has been working to make our archive problems compatible with the feed, so that you can also access these old problems via search or in their newsfeed, participate in solution discussions, like, reshare, and add the problems to a set. This archive migration is now complete. If you had previously completed an archive problem during the week that it was published, you will have full access to that problem. If you did not previously complete the problem, you can solve it by joining Brilliant Squared.
Now that the migration is complete, we are also able to give everyone a list of easy to find links to all of the solutions you have written. Go to your profile and look for the link that says "solutions" on the upper left sidebar beneath "activity."
Our team has invested a lot in creating excellent problems. Our hope is that Brilliant Squared subscriptions will allow us to continue to create excellent material, for both free members and paid subscribers, and continue to support all of the infrastructure that allows members to share problems freely with one another.