Reasons
The advance of the passed pawn lengthens the range of a rook behind and reduces the range of a rook in front. A rook escorting a pawn from ahead must move off, potentially leaving the pawn undefended, if it is to promote. A rook behind an enemy passed pawn can more readily generate counterplay.
Read more about this topic: Tarrasch Rule
Famous quotes containing the word reasons:
“In short, if there were external bodies, it is impossible we should ever come to know it; and if there were not, we might have the very same reasons to think there were that we have now.”
—George Berkeley (1685–1753)
“With what reason remains he reasons ill.”
—Samuel Beckett (1906–1989)
“From things that have happened and from things as they exist and from all things that you know and all those you cannot know, you make something through your invention that is not a representation but a whole new thing truer than anything true and alive, and you make it alive, and if you make it well enough, you give it immortality. That is why you write and for no other reason that you know of. But what about all the reasons that no one knows?”
—Ernest Hemingway (1899–1961)