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BlueHens
4 editions
·
132 challenges
·
2021–2026
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2026
2024
2023
2021
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2026
27 challenges
CTFtime
crypto
3
Eggs_Over_Easy
0
0
Hell_is_haard
0
0
XORDECRYPT
0
0
forensic
7
awk...wardddd_scissors
0
0
Basics
0
0
Blue_Hens_Telemetry
0
0
Freakquency
0
0
Hens_can_type
0
0
Name_Calling
0
0
red_circle_ear_ing
0
0
misc
8
2Blue2Hen
0
0
2d_to_3d
0
0
Blind_Hens
0
0
KeyCraft_1
0
0
KeyCraft_Sanity_Test
0
0
Lock_and_Key
0
0
Looking_Down
0
0
Storytime
0
0
osint
4
3_words
0
0
Glasses_1_NOTE
0
0
Glasses_2
0
0
The_hungry_Catipillar
0
0
pwn
1
Temporal
0
0
rev
2
A_Logical_Decuction
0
0
Logical
0
0
web
2
bawker
0
0
screengrab
0
0
2024
47 challenges
CTFtime
crypto
9
Barcode_Crypto
0
0
Corkscrew
0
0
Hand_Mades_Tale
0
0
HMAC
0
0
Nonogram_Pt._1_Simple_Enough
0
0
Oh_Baby_A_Pythagorean_Triple
0
0
ROTOLACTOR
0
0
Simon_Says
0
0
Training_Problem_Intro_to_RSA
0
0
forensic
4
Giraffical_Image_Format
0
0
Inner_Demons
0
0
RGBinary
0
0
Whispers_of_the_Feathered_Messenger
0
0
misc
8
AlgebrarbeglA
0
0
An_ode_to_Alejandro_and_Kristin
0
0
Bees_in_Space
0
0
Font_inary
0
0
Polar_Opposites
0
0
Scottish_Ham
0
0
Sticky_Keys
0
0
Youre_such_a_Rube
0
0
osint
2
Im_Hungry
0
0
Training_Problem_Intro_to_OSINT
0
0
pwn
6
Flaming_Lips
0
0
Pure_Write_What_Where_PWN
0
0
ret2bf
0
0
thelight
0
0
thetv
0
0
Training_Problem_Intro_to_PWN
0
0
rev
6
Brainrot.c
0
0
Cut_The_Flag
0
0
G.G.
0
0
Hogwarts_Stairs
0
0
Texting_IRL
0
0
Training_Problem_Intro_to_Reverse
0
0
web
4
Firefun_3
0
0
Just_a_day_at_the_breach
0
0
Nonogram_Pt._2_Disgraced
0
0
Snake
0
0
xor
8
XS1_XOR_without_XOR
0
0
XS2_Looper
0
0
XS3_Roman_Xor
0
0
XS4_Hexy
0
0
XS5_Old_School
0
0
XS7_Alternating_Current
0
0
XS8_CBC_Encrypted
0
0
XS9_ROX_LOOHCS
0
0
2023
43 challenges
CTFtime
crypto
15
Appetizers
0
0
Future_Crypto
0
0
Greatest_Hits_1_of_4
0
0
Hide_n_Seek
0
0
RSA_School_1st_Grade
0
0
RSA_School_2nd_Grade
0
0
RSA_School_3rd_Grade
0
0
RSA_School_4th_Grade
0
0
RSA_School_5th_Grade
0
0
RSA_School_6th_Grade
0
0
RSA_School_7th_Grade
0
0
RSA_School_8th_Grade
0
0
Strong_Primes_Are_Safe
0
0
unbreakable
0
0
Unencode_The_Flag
0
0
hw
1
Locked_Circuit
0
0
misc
9
Big_JPG
0
0
Defective_Client
0
0
Defective_Server
0
0
Forest_For_The_Trees
0
0
Least_Significant_Color
0
0
Modular_Authenticator
0
0
Modular_Authenticator_2
0
0
Python_Jail
0
0
Turing_Complete
0
0
pwn
14
arm_pokeball
0
0
Heap_School_1st_Grade
0
0
Heap_School_2nd_Grade
0
0
Heap_School_3rd_Grade
0
0
Heap_School_4th_Grade
0
0
Heap_School_5th_Grade
0
0
Heap_School_6th_Grade
0
0
Heap_School_HELD_BACK_5th_Grade
0
0
Heap_School_HELD_BACK_6th_Grade
0
0
High_Precision_Shellcode
0
0
Higher_Precision_Shellcode
0
0
shellbad
0
0
Simple_BOF
0
0
Simple_ROP
0
0
rev
4
Blue_Hens
0
0
Bussin
0
0
Classic_Checkers
0
0
ElectroNES
0
0
2021
15 challenges
CTFtime
crypto
7
aHead_Of_The_curve
0
0
conFidential_searcH_and_dEstroy
0
0
hot_diggity_dog
0
0
hot_diggity_dog_2
0
0
OTP1
0
0
OTP2
0
0
OTP3
0
0
pwn
6
babyjeep
0
0
beef-of-finitude
0
0
EncrHeapt
0
0
ForMatt_Zelinsky
0
0
Sandboxed_ROP
0
0
Tiny_Tim
0
0
rev
2
compUDer
0
0
Entropy
0
0