JPortman: I'm really sorry, but there must be some bug in the system. Actually I have solved all the problems in this collection, but the system shows that only 99% is solved. The unsolved are three problems, which I couldn't solve many times, so they were temporarily blocked ("Try again tomorrow"). So I solved them the next day, and the system has shown that 100% of the problems were solved and the collection is completed (I can send you a screenshot). But the next day the system shows again that only 99% is solved - those three problems are blue (unsolved) again. I think this problem arose after the problem with the site - it was temporarily unavailable a week or two ago. There was some maintenance on the site,after that the design of the page with collections has changed a little, and since then I experience this problem. So today I decided to provide this bug report. Hope it will be useful for you! :)
d4rkm4tter: Yes, this is helpful. I will have a look.
Yes, this is helpful. I will have a look.