Bletchley Park Number & Math Puzzles; Arcturus, 2020

This book forms part of a series of puzzle books produced by the Bletchley Park Trust. Follow in the footsteps of the Codebreakers and establish whether you have the puzzle-solving skills needed to have worked at wartime Bletchley Park. Other titles in the series are Codebreaking Puzzles, Cryptic Crosswords, IQ Puzzles, Brain Boosting Puzzles, Brain Training Puzzles, Logic Puzzles, One Minute Puzzles, Codewords, Crosswords, Sudoku and Word search.