Reddit reviews The GCHQ Puzzle Book: Pit Your Wits Against the People Who Cracked Engima
We found 1 Reddit comments about The GCHQ Puzzle Book: Pit Your Wits Against the People Who Cracked Engima. Here are the top ones, ranked by their Reddit score.
This puzzle book from last year was written by the staff of GCHQ who know a thing or two about codes.