If you are a beginner at chess you can improve quickly and efficiently with chess courses for beginners created by chess grandmaster Igor Smirnov, who developed a UNIQUE chess teaching system over the years which proved to be highly effective.
Play Chess against Stockfish - the best chess software on the net.
This chess program will take you apart, slowly but surely. On the left side of the board you see a bar which moves down when your position gets worse.
If you want to play the Black side then select "HUMAN" on the top right side and "COMPUTER" on the top left side. Good Luck!
Just click on image or link to get there.
This is a strong and nice Chess Flash Program and my favorite. Try to win!
If you still lose, then don't jump off the bridge, play this program, it is a bit weaker, but it still does show its teeth sometimes, so be careful. You can play it in a big window. Beat It!
Play against this chess program, but don't cry when you lose. It is strong.Strong Flash Chess Program
This program I found lately, is good-looking and still strong.
Beat Ziccidus Chess.
Play chess against computer versus weak programs below to get started. They are easier to beat because they don't follow correct chess principles. They place chess pieces on dubious squares, push too many pawns which creates weaknesses in the position. And they don't know any opening theory, of course.