Free Chess Engines and GUIs

Initially I was searching for a good chess program to play with. My friend Arvind was having Chess Master and I thought it is the best one to practice with. I am having Fritz 11, but I was looking for Chess Master. After searching in net only, I found that Fritz is damn good than CM. Fritz is great.

Fritz 11 is from Chessbase and it costs a fortune. And now there are lot of free Chess engines and GUIs are available. Here are the few best free Chess Engines,

• Rybka 2
• Crafty
• Spike

Free Chess GUI

• Arena (http://www.playwitharena.com/)
  
• Jose