what program do you use to play chess?

hi friendss!! as the subject, what program do you use to play chess on a compurer?? or to analyze the games??? do you  have any good database of games??

do you use any on linux?

I use ChessBase 10, and ChessAssistant 8.1 for databases. Fritz 11, Deep Shreder, and Rybka to analyse games. I play chess online on FICS (freechess.org).

I use Fritz and thats all I need.

I am a fan of the Chessmaster series mainly because it is comprehensive as well as relatively inexpensive.  I have used Chessmaster 9000, the 10th edition, and now the Grandmaster edition.  I also own a chess laptop computer that I bought to use when away from home and unable to access the Internet.  However, its pieces are rather small making its use cumbersome at best.

Rybka