Small Throne Room Secret?

[SmartriX]

In the area where the stargate room is - there is a small room with a big red throne flanked by candle holders with tetris speak on the wall with a secret in this room. I've been hammering the code on the wall with no success - I've even tried including the symbol on top of the throne for left. Any ideas?

Edit - answer - http://www.xbox360achievements.org/f...d.php?t=366109