[legedemon]

I clicked on a random open problem and found https://www.erdosproblems.com/170. The text of the problem didn't make sense. The wikipedia article stated the problem much more nicely which was thankfully linked from the OP's website.

Wish the problem could be stated more simply on the main site as well. Will certainly try and help the owner of the website.

[TFBloom]

Sorry you found the text confusing; often I have reworded the problem text to give what is, for me, the clearest explanation of the problem.

Of course, what the clearest explanation is is very much dependent on one's own background and personal tastes!

For example for this problem I think a lot about sumsets and difference sets anyway, so it made sense to phrase it in those terms.

If you have a suggestion on how it could be rephrased for clarity then please do email in.