Chess rook is not the castle; Investigating the Differences between "Rook" and "Castle" in Chess based on Old Persian Literature Texts

One of the themes poets and writers have created themes in their works is related to chess. As this game has had various forms in different eras, so some people and consequently commentators, ignoring this and just based on its current form, have described and explained related texts. One of these is to equate "castle" with "rook". This research using descriptive-analytical method based on induction, and following old Persian texts follows to prove the differences between these two elements in chess. The results show that "castle" was a place in Roman chessboards, and has had significant differences with "Rook". Some commentators ignoring this issue have slipped in the description of texts related to this game and have referred rook as "castle", which itself has caused misunderstanding in describing terms, interpretations, and finally deviating from poets and writers' intentions.which itself has caused misunderstanding in describing terms, interpretations, and finally deviating from poets and writers' intentions.