Quote Originally Posted by gugi View Post
Actually the solution presumes that the light in the other room is off to start with, which is not stated in the original set up. Without knowing whether the light is on or off, I don't think you can solve the problem
Not true Gugi! X said you are only allowed to make one trip to the other room using only the light switches. So, punch a hole in the wall, grab the light switches, rip them out through the plaster as you move to the other room, and see which one is connected to the socket.

I base my answer on observations I made on the last electrician we hired to fix a faulty socket.

James.