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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I know it probably too late, but I would have preferred to see the standard lenght set at 3 days rather than 4 days. (And yes, I know you can play faster, but if I only take the games from the top of my time sorted list they do not get there as fast.)
(esconder) Apetece-lhe um jogo rápido que termine garantidamente em 2 horas? Crie um novo jogo segundo as suas preferências e marque o controlo de tempo para 0 dias/1 hora, Bonus 0 dias/0 dias e Limite para 0 dias/1 hora. (TeamBundy) (mostrar todas as dicas)