When you are considering a move, ask yourself these questions:
1. Will the piece I'm moving go to a better square than the one it's on now?
2. Can I improve my position even more by increasing the effectiveness of a different piece?
3. Does this move help to defend against my opponent's threats?
4. Will the piece I move be safe on its new square?
a. If it's a pawn, consider: Can I keep it protected from attack?
b. If it's another piece, consider: Can the enemy drive itaway, thus making me lose valuable time?
Even if your intended move has good points, it may not be the best move at that moment. Emanuel Lasker, a former world champion, said: "When you see a good move, wait look for a better one!" Following this advice is bound to improve your chess.