good for playing and recording games, and for "Seven Circles" training

This is a great app. The board and pieces are easy on the eyes, it can automatically adjust its playing strength to match your own, and it can export the PGN of games that you have played. I use it to play chess against the Shredder engine, to record games that I play against real people, and to do Michael de la Mazas Chess Vision exercises and "Seven Circles" training.

Urbanmom99 about Shredder Chess, v1.4.5