I'd like to create an AI for a card game I created in vb.net (Whist, a 4 player game). Unfortunatly I have no experience with AI whatsoever.

I don't really know 'how' I can start writing an AI, can anyone help me on the right track?

The game consists of 1 server and 4 clients connected by sockets that send text data to each other via the server, if that matters for the approach.

Thanks in advance.