Study weak chess moves here. Just click on the game you like to see. Here you can see the bad effect that a weak move has on the overall position.
"Every move is gold" is a saying from world champion Emanuel Lasker (1868-1941).
Don't just move anything that comes to your mind. Always take a few moves into consideration - the so-called candidate moves - before you decide on a move. Check them all to see which one is the best. Always try to find the best move. The second best move might not be good enough and loses the game.
Select and list the Candidates Moves in your mind first. Then analyse each one and choose the best one. Before you execute it find ways how your opponent can possibly refute your move. If you are still convinced that this move is best then make it.