What is a weak pawn? A pawn that is exposed to attack and also difficult to defend is a weak pawn. There are several varieties: isolated, doubled, too advanced, retarded.
Samuel ReshevskyIt often happens that a player is so fond of his advantageous position that he is reluctant to transpose to a winning endgame.
Samuel ReshevskyGood players develop a tactical instinct, a sense of what is possible or likely and what is not worth calculating.
Samuel Reshevsky