Chess Puzzle of the Week (190)

Abrahams – Booth Liverpool 1923
White to play

The June edition of CHESS featured an article about the strong English amateur Gerald Abrahams, written by former RTCC member Russell Sparkes, along with a selection of puzzles from his games.

Coincidentally, this position also features in one of the latest books on my review pile.

How did White force a win in this bishop ending?

Do let me know (in private) if you think you’ve found the answer!