For posting:
- invitations to games (you can also use the New Game menu)
- information about upcoming tournaments
- discussion of games (please limit this to completed games or discussion on how a game has arrived at a certain position ... speculation on who has an advantage or the benefits of potential moves is not permitted)
- links to interesting related sites (non-promotional)
Justaminute: It shouldn't be too difficult to construct a game where black gives mate from a distance on move 20.
White moves axb3, bxc3, Na3-c4, Ba3, Qb1. Black moves axb6, Ra6-a5-a4xa3xa1. Then both make random moves on the kingside, and on move 20 Black plays Rxb1 with possible mate.
(verstecken) Behalte die Uebersicht über dein Postfach indem du wichtige Mitteilungen archivierst und nutze regelmässig die "Lösche alle Nachrichten"-Option in deinem Eingangs-Postfach. (pauloaguia) (zeige alle Tips)