Hello, This might get removed from these forums if the BBO staff misinterprets, so prefer the conversation mirror at rec.games.bridge http://groups.google.com/group/rec.games.bridge/browse_thread/thread/18c3f1b65c2e5324#. Thank you! I would like to announce the creation of jacobian http://peteriserins.com/2011/08/14/introducing-jacobian.html . From the blog post: "Jacobian is a simple, incomplete, but working protocol for computer bridge programs. With the host program, you specify a deal, vulnerability, contract and the four players by specifying their executable programs. The host then leads them trough a game of bridge (currently, only the play of the hand is implemented). That’s it." The actual software components are available here: host program: https://github.com/Pet3ris/jacobian-host GiB wrapper: https://github.com/Pet3ris/jacobian-gib-wrapper GUI: https://github.com/Sedols/jacobian-GUI Comments and contributions much appreciated. What do you guys think about this?