Chess Tip Of The Day

The command of an open file by a rook, or by both rooks, represents a great advantage, particularly if the file is the only one open, and the opponent cannot reply by occupying it with a rook. Siegbert Tarrasch, The Game Of Chess

In the opening and in the middlegame, the loss of a rook for a minor piece and one pawn is usually less serious than the loss of a pawn. Cecil Purdy, On The Endgame

Do not use analysis engines blindly, but only as an additional tool to check your analysis.  Andreas Tzermiadianos, How To Beat The French Defence: The Essential Guide To The Tarrasch

On average, a bishop is worth a little more than a knight. John Nunn, Secrets Of Practical Chess

In complicated positions with things able to be taken or exchanged, it is almost certain that the best move is to grab something. Don't dither. It's your opponent's move next time, so don't give him free rein, force him. Cecil Purdy, CJS Purdy's Fine Art Of Chess Annotation And Other Thoughts - Volume Three

There are two basic approaches for White to obtain the advantage in the opening. He can open 1.e4 and aim for rapid development, or he can play d4 and c4 in the first few moves (the "Queen's Gambit") and play for space. Larry Kaufman, The Chess Advantage In Black And White