Chess, server app, c/c++ programming

I need a concurrent tcp server that supervises a very basic game of chess, and a simple client to test the server. Clients can be basic telnet clients, but in that case the server is more complicated to design. The server app needs to be able to say when the game is over and announce a winner. The rules of the game can be simplified a bit, but the game must be interactive. I am uploading a basic tcp server/ client I was given by my Uni teacher. This project is a Uni assignment.