The Alan Turing Cryptography Competition

2022 edition. From the people behind the MathsBombe Competition.
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Chapter 4

"Thanks for that one Mike. Have you thought about taking up a new hobby? Try this one on for size!"

  1. P2 K40 P2 K3
  2. P3 K1 P12 K1 P12 K1 P1 K3 P6 K2 P1 K1 P2 K1
  3. P1 K1 [P1 K2]3 P1 K3 P1 K2 P1 K5 P1 K3 P4 K1 [P1 K2]2 [P1 K3]2
  4. P3 K1 P2 K1 P4 K2 P3 K1 P1 K1 P2 K3 P4 K1 P2 K2 P3 K2 P2 K2 P2 K1 P1 K1
  5. P1 K1 P1 K3 P1 K2 P2 K4 P1 K2 P1 K5 P1 K3 P1 K5 P2 K5 P1 K1 P1 K3
  6. K4 P1 K3 P2 K1 P2 K1 P4 K1 P7 K2 P1 K1 P1 K3 P1 K1 P2 K1 P1 K2 P1 K1 P2 K1
  7. P1 K18 P1 K23 P1 K2 P1
  8. K2 P1 K2 P21 K2 P17 K2
  9. K20 P1 K25 P1
  10. K3 P23 K2 P19
  11. K47
  12. K3 P44
  13. K47
  14. P1 K1 P45
  15. K45 P1 K1
  16. P1 K1 P45

Decoding the message will reveal a question. The required solution is the answer to the question. Please enter your answer below. If the answer is a number please enter it in numerical form, e.g. 55. If the answer is a word, please enter the word, e.g. omega.

Alan Turing Cryptography Competition 2022 is organised by the The Department of Mathematics at The University of Manchester.
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