To find out what stairs you can currently challenge someone in, first go to the Main Stairs Page, then click on "Show your stairs only" link. The ones in BOLD are ones you can make a challenge in.
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Fencer: So you go to the Main Stairs page, then click on the "Show your stairs only" to get to your own page where you can see the bold for if you are able to challenge.
Any chance to get the same bold feature when you look at your own profile's stairs section?
(hide) You can send a message to your friends with just one click by adding them to your friends list and then clicking the small envelope by their name. (pauloaguia) (show all tips)