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)
Is en passant allowed at Dark Chess ? If not, all is perfectly fine. If yes, one should see the pawn which one can take en passant. Otherwise, there would be no other way to know that an en passant is possible without trying all potentials en passant. And discovering it to be possible would give the same info as seeing the takeable pawn. In both cases, the rules should say a little something about it.