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:
“I should like to know what is the proper function of women, if it is not to make reasons for husbands to stay at home, and still stronger reasons for bachelors to go out.”
—George Eliot [Mary Ann (or Marian)
“Happy the man who has been able to know the reasons for things.”
—Virgil [Publius Vergilius Maro] (70–19 B.C.)
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—Robert Neelly Bellah (20th century)