Bletchley Park Brainteasers review: A bit puzzling
LAST Christmas, Penguin published The GCHQ Puzzle Book, a collection of fiendish puzzles devised by Britain’s code-breakers to tease and infuriate their colleagues.
Daily Express :: Books Feed

LAST Christmas, Penguin published The GCHQ Puzzle Book, a collection of fiendish puzzles devised by Britain’s code-breakers to tease and infuriate their colleagues.
Daily Express :: Books Feed