There is a reason that Julian chose to use a 100 year old chess match. The 1918 match between Marshall and Capablanca is considered to be one of the greatest defensive games of all time. After deflating Marshall's (black) opening attack, Capablanca (white) patiently advanced an isolated pawn to the far end of the board. Pawn is promoted to queen and checkmate occurs in 5 moves.

Moral of the story: A pawn who has escaped the confines of his opponent is one of the most dangerous threats to the endgame. JA has escaped the confines of his opponents!