ALAN TURING'S CRYPTIC CODEBREAKER'S PUZZLE BOOK
Whether an aspiring or experienced codebreaker, there is a challenge for everyone in this work that becomes progressively harder as you move through each level. Focus and logic are crucial to working through these pages. Solutions included.
Format: Paperbound
Pages: 256
Publisher: Arcturus
ISBN: 9781398825437
Item #: 7948581
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$6.95