This is a video I had never seen before until last night.
I am now convinced that Paul Berry was a mere pawn sacrifice, who was outed as a warning to more senior members of the DUP, that they would be outed too, if they did not go along with the planned St Andrews treachery.
This has now been posted on the Chess website.
A PAWN SACRIFICE IN THE MURKY CHESS GAME OF N.IRELAND POLITICS
John 13:7 Jesus answered and said unto him, What I do thou knowest not now; but thou shalt know hereafter.