above-board vs fair and square

above-board

adv
  • Honestly; openly. 

adj
  • In open sight; without trick, concealment, or deception. 

fair and square

adv
  • Totally fairly and undoubtedly. 

  • In all fairness; equitably. 

  • Within the applicable rules. 

How often have the words above-board and fair and square occurred in a corpus of books? (source: Google Ngram Viewer )