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    7 editions·93 challenges·2020–2025

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    202520242023-Junior2023202220212020
    Average—/5Vote and rate each challenge below.

    2025

    17 challenges

    Quals crypto2

    Subway_surf
    Subway_surf_REVENGE

    Quals hw3

    Heat_Wave
    Operation_Silent_Hawk
    RGB2KGB

    Quals misc2

    1_TB_of_COBBLE_STONE
    TB_of_COBBLE_STONE

    Quals pwn4

    Cybershop
    Eidolon_Core
    Eidolon_Core_2
    Soulkeeper

    Quals rev5

    Cyber_Core
    Cyber_Core_REVENGE
    Ghost_In_The_Code
    Swift_Job
    Time_Machine

    Quals web1

    Mdb

    2024

    22 challenges

    Quals crypto3

    nessat
    nessat_revenge
    nessat_warmup

    Quals misc3

    Cloud_Wizard
    oh_no...
    Paranoid

    Quals osint4

    First_3D_Stealth_Action_or_not
    Hacker
    i_found_you
    street_art

    Quals pwn4

    Achilles
    jitinator
    oneshot
    vds

    Quals rev5

    Cargo
    Grasshopper
    KWASm
    MAXDuino
    Who_am_I

    Quals web3

    CodePaste
    Gargantua
    Yet_another_note_taking_app

    2023-Junior

    21 challenges

    Quals blockchain2

    RaND0M
    Web_3_0_WELCOME

    Quals crypto3

    Basecrypto
    Brainteaser
    Outer_space

    Quals forensic2

    Adam_ruins_everything
    Dont_trust_your_eyes

    Quals misc4

    adminman
    Basilisk
    My_good_friend
    OhMyPosh

    Quals pwn3

    Mouse_Quest_Demo
    Reality
    We_live_in_society

    Quals rev4

    heisenberg
    Huffstitution
    ImageVerse
    Let_In

    Quals stegano2

    Rounds_Meme
    Two_brothers_the_cipher

    Quals web1

    CatoCloud

    2023

    12 challenges

    Quals blockchain4

    Cerberus
    Curvebank
    Drain_me_Baby
    WEB_3.0_Welcome

    Quals crypto1

    Local_meme

    Quals pwn2

    2FA
    Alpha_Assault

    Quals rev4

    Anaconda
    Unmanaged_Calls
    v_smoke
    worst_keygen_of_them_all

    Quals web1

    Azkaban_Escape

    2022

    12 challenges

    Quals crypto3

    CryptoShark
    MeOw_crypto
    Portrait

    Quals rev6

    CatTheBank
    Dark_cat
    Krackme
    MCryptoContainer
    Opensource_reversers_mindset
    SecureChat

    Quals web3

    CaTsino
    Forest
    toor

    2021

    8 challenges

    Quals pwn2

    Legacy_Pt_2
    riscs

    Quals rev3

    C.C.
    Legacy_Pt_1
    oldschool

    Quals web3

    Notifications
    silly-filly
    Starlights_File_Saver

    2020

    1 challenges

    Quals1

    pwnn0tes
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