In a rook and pawn ending, the rook must be used aggressively. It must either attack enemy pawns, or give active support to the advance of one of its own pawns to the queening square.
Siegbert TarraschAll lines of play which lead to the imprisonment of the bishop are on principle to be condemned.
Siegbert TarraschWhite lost because he failed to remember the right continuation and had to think up the moves himself
Siegbert Tarrasch