I've finally added basic winboard protocol support to this old
chess engine (1995) which was written for testing various hashing algorithms.
Although Dennis Breuker wrote AliBaba as a testbed program, I'm pleasantly surprised by how well it can play as a proper chess engine. I estimate it's strength level around 1800 elo, so should provide a challenging game to a club-level strength human player.
Download: Pack some version of the engine (1.30, 1.31, 1.32, 1.33, 1.34, 1.36)