Shredder Classic Mac, Shredder 9 Mac and Deep Shredder 9 Mac combine extremely powerful chess play with easy handling. The level of play of the program can be adjusted to any chess playing strength, so that everyone can find an adequate chess partner. Many functions are available for analysing one's own chess games.

The most important features are:

• User interface that is easy to handle and can be set up individually
• Many different sets of pieces and chessboards
• Chess engine with extremely powerful play, that can be individually adjusted and configured
• Moves can easily be entered by mouse or keyboard
• Games can be provided with alternative lines and comments
• Multi variation analysis
• Free, open protocol between chess user interface and chess engine (UCI protocol)
• Several chess engines that differ in their playing style