RedQueen is a free and open source chess program available for Windows and Linux. The code has been written in C++ using minimal library dependencies as possible, so that it could be easily ported to other OS.
RedQueen is an UCI chess engine which means that you will need to have installed on your computer a chess graphic interface such as Arena or XBoard/Winboard to be able to play with it.
The name RedQueen comes from the Red Queen character in Lewis Carroll's Through the Looking-Glass novel.
RedQueen is hosted by: