ICS - mexamine

First, start xboard as an ics client:

xboard -ics -icshost freechess.org

I am assuming, that both players, a and b started xboard, and logged in. In order to examine a chess game together with a friend of yours, issue the following commands (The a: part is indicating which player is entering the command):

a: examine

This will print out the game id. In my case, it is 194. Now, the other player needs to observe that game

b: observe 194

Now, we are observing the game with player B. The next step is to enable mexamine:

a: mexamine b

After this, both player are examining the same game. To end the examination:

a: unexamine