CHESS PROBLEMS SOLVERS This setup program will install optionally some chess programs. All they are freeware and Open Source, but each one has his own license. Please read carefully the license file included with each program. In order to save space and download time, the source codes of these programs aren't included. A file named source.url is included with each program. This file contains a link to the Web site where you can found the corresponding source code. If your computer have sufficient disk space, I recommend you to install all these programs, even if some of them already are installed in your system.