Sets of organ pipes; or, horizontal rows on chessboards

Let's find possible answers to "Sets of organ pipes; or, horizontal rows on chessboards" crossword clue. First of all, we will look for a few extra hints for this entry: Sets of organ pipes; or, horizontal rows on chessboards. Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 possible solution for this clue in our database.