Across
- 1. The Prime Minister
- 4. Sir Herbert Leon's house
- 5. Retrieved from a U-boat
- 8. Number of cogs on first Enigma machine
- 9. U-boat animals
- 11. Time from for Bletchley Park codebreakers
- 12. Ethos of Bletchley Park
- 14. Famous codebreaker
- 15. Name of WAAF quarters
- 18. Puzzles used to recruit codebreakers
- 19. Problem for codemakers
Down
- 1. Problem solver
- 2. Game used to identify codebreakers
- 3. Turing's profession
- 6. Puzzling machine
- 7. GPO man who built Colossus
- 10. Codename for Bletchley Park
- 12. A characteristic of Alan Turing
- 13. Wartime signals intelligence codename
- 16. Alan Turing's first programmable computer
- 17. Allies at Bletchley