"... It is difficult to apply the right principle in the heat of battle, especially when it conflicts with another principle. When is a violation of principle acceptable and when is it not? We acquire positional judgment by studying master games. …" - GM Larry Evans (1974)
Say No to Chess Principles!
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chess principles often lead to good moves 
chess is fun, I remember when I first played this game, I lose three times. I practice it so many times until I become a pro. I learned every move and every strategy.
Regards, Customized personal website help UAE
To become good at anything you have to know how to apply basic principles. To become great at it, you have to know when to violate those principles. Garry Kasparov, Deep Thinking: Where Machine Intelligence Ends and Human Creativity Begins