The School Code Breaking Site
Code Breaking Puzzles to Solve for KS3 and GCSE Students
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2025 competition
2025 competition registration
Level 1A Intro 2025
Level 1A Introduction
Level 1A Code 1 2025
Level 1B Intro 2025
Level 1B Introduction
Level 1B Code 1 2025
Level 2A Intro 2025
Level 2A Introduction
Level 2A Murder Mystery Introduction
Level 2B Intro 2025
Level 2B Introduction
Level 2B Treasure Hunt Code 1 2025
Level 3 Intro 2025
Level 3 Introduction
Level 3: Spy Thriller Code 1 2025
Level 4 Intro 2025
Level 4 Introduction
Level 4 Test of Genius 1
Bonus Level 2025
Bonus Level: Computer Coding Intro
Bonus Level 1 Reversing Text 2025
2024 competition
Level 1A 2024: Code 1
Level 1B 2024: Code 1
Level 2A 2024: Code 1
Level 2B 2024: Code 1
Level 3 2024: Code 1
Level 4 2024: Test of Genius
2024 FAQ
2023 competition
FOBISIA 2023 LEVEL 1A: CODE 1
FOBISIA 2023 LEVEL 1B: Murder Mystery CODE 1
FOBISIA 2023: LEVEL 2 CODE 1
FOBISIA 2023 LEVEL 3 CODE 1
FOBISIA 2023 LEVEL 4: Test of Genius
Other Challenges
2022 Competiton
FOBISIA 2022 LEVEL 1: Code 1
FOBISIA 2022 LEVEL 2: Code 1
FOBISIA 2022 LEVEL 3: Code 1
FOBISIA 2022 LEVEL 4: Code 1
Code Challenge Level 1
Code Challenge Level 4
Code Challenge Level 5
Code Challenge 5Extra
Code Challenge Level 6
Code Challenge Level 7
Resources
Code Breaking Resources
About BISP
Murder Mystery
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