winterangels: Your subject says "Stairs", yet you talk about being kicked out of a Tournament. So, I'm not sure what your issue is exactly. On your profile, I see you are indeed in one set of stairs, and were not kicked out. As a Pawn, you are only allowed in one set of Stairs. So that seems to be fine.

You currently have 19 games going. As a pawn, your limit is 20. To join a tournament, as a pawn, you DO have to have a certain number of free slots. I honestly don't remember how many that is. (4 or 5? I would imagine if it's "Single Elimination" that one slot would be fine) But I bet someone else does recall the exact requirement, and will say so. If you do not have enough slots, you will indeed not be allowed to start the tournament.