So, can you communicate with your opponent with the slitherine system?
A few issues with the GUI sofar, if I picked a posted challenge to view options I could then not return to the main game menu ( had to close program )
Otherwise, no problems.
We have some improvements to make to the implementation post-release, adding messaging to your opponent is pretty much #1 on the list. The server already supports this, but the WITE client does not yet.