I did posted a Turkish olympiad problem to MO. I think it is about Dilworth's Lemma. http://mathoverflow.net/questions/124898/dilworths-lemma-closed I have studied Dilworth's Lemma (I'm not a student, just hobby). But I couldn't make an analogy. Then the problem is closed. Actually, I didn't know the difference between MO and math.stackexchange. I have learnt it from one of the comments. Then, I edited my question as it is closer to the definition of Dilworth's Lemma. And I mention where I am stuck. I think the latest form of my question is now similar to the other question at MO. How can I make the question reopened?
Olympiad problems are not research problems (they may lead to research, but that's not the same thing), so the question is not suitable for this website, and will not be re-opened.