A tactical way to improve ones position. Rules don’t exist but there are many practical examples especially in endgames.
ECHESSPEDIA
Quotes of the Day
Preparation for a world championship was always an arms race, in previous times with books, then with seconds, today with computers.
Vishy Anand 2008
Chess is a foolish expedient for making idle people believe they are doing something very clever, when their are only wasting their time.
Bernard Shaw
You only task in the opening is to reach a playable middle game.
Lajos Portisch
Every chessmaster was once a beginner.
Irving Chernev
Good players actually use their long-term memory much more than inexperienced players, who use their short-term memory. Good players try to recall patterns.
Magnus Carlsen 2016 2016