Across
- 4. The location of the independent boys school he attended
- 5. The machine he created
- 6. The code that was cracked during WW2
- 7. The theory he won the Smith's prize
- 8. To make a secret message
Down
- 1. His colleague who helped create the Bombe
- 2. The location where the Enigma Code was cracked
- 3. The university where Alan gained his pHD
- 4. To crack a code
- 9. A game