$ ctf42

Challenges

Category
Difficulty
CTFtime weight
–
Higher weight ≈ harder, more prestigious event.
Year
–
Must have
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13 challenges · browse all techniques

Challenge CTF Weight Category Has
Odd_One_Out
#qr-code
 UMassCTF 2025 48.38 Misc files wu 1
100_Degrees
#lagrange-interpolation
 UMassCTF 2024 43.10 Misc files wu 2
Agent_P
#keyboard-cipher
 UMassCTF 2024 43.10 Misc files wu 1
Magic_The_Ungathering
#image-analysis
 UMassCTF 2024 43.10 Misc files wu 1
Stop_the_voices
#image-averaging#noise-reduction
 UMassCTF 2024 43.10 Misc files wu 2
Blink_of_an_Eye UMassCTF 2026 65.95 Misc files
Brick_Road UMassCTF 2026 65.95 Misc files
Deep_Down UMassCTF 2026 65.95 Misc files
Take_a_Slice UMassCTF 2026 65.95 Misc files
knex UMassCTF 2026 65.95 Misc files
Tower_Signal UMassCTF 2025 48.38 Misc files
pandora UMassCTF 2025 48.38 Misc files
rf UMassCTF 2024 43.10 Misc files