The Alan Turing Cryptography Competition

2026 edition. From the people behind the MathsBombe Competition.
Home Archive
The Chapters
Chapter 1
Released Mon 12th Jan 4:00PM
Chapter 2
Released Mon 19th Jan 4:00PM
Chapter 3
Released Mon 26th Jan 4:00PM
Chapter 4
Released Mon 9th Feb 4:00PM
Chapter 5
Released Mon 2nd Mar 4:00PM
Chapter 6
Released Mon 9th Mar 4:00PM
Solutions
Released Mon 30th Mar 4:00 PM

Certificates

If you've enjoyed the 2026 Alan Turing Cryptography Competition, you may want to remember it with a certificate!

Enter your answers to the puzzles below and click the link below. Don't worry if you haven't been able to answer all (or even any) of the questions. Certificates will only be available until 4PM Monday 30th March 2026, when the answers to the puzzles will be posted.

Full Name:

Question 1:
Question 2:
Question 3:
Question 4:
Question 5:
Question 6:

Alan Turing Cryptography Competition 2026 is organised by the The Department of Mathematics at The University of Manchester.
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