it sounds novel and very exciting...
SecretChess
evertVB, it is possible to have a midiator and write your move on a piece of paper. For some reason we didn't think about it and the first game was played after creating a simple JavaScript page where each player made a move, it was concealed, and we were passing an iPad from one player to the other :)
Hi Everyone,
We've launched a new game named SecretChess and we're looking to get your feedback!
It takes a little bit of time to adjust as it is in some ways more complicated than chess. There are new tricks and things to be aware. But the basic game is simply chess rules, where the opponent's last move is hidden.
You can find it here: www.secretchess.com
There's also am iOS version
We're hoping to collaborate with chess.com and make a new fun thing out of it!!
Many thanks,
Eyal