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    DEFCON

    8 editions·120 challenges·2018–2026

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    20262025202420222021202020192018
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    2026

    21 challenges

    Quals crypto2

    rfc1149b
    The_Black_Talon

    Quals misc2

    rfc1149a
    shelldiet

    Quals pwn7

    coalmine
    coalmine_revenge
    gitvfs
    gitvfs_revenge
    mapllvm
    nodefs
    Stork

    Quals rev8

    2bird2can
    Birdhouse
    Math_Is_Hard
    My_Favorite_Instructions
    Night_Owl
    Pixels_and_Nicotine
    Soaring_Swifts
    Stick_Drift

    Quals web2

    Bird_Blog
    Waybird_Machine

    2025

    17 challenges

    Quals17

    callmerust
    dialects
    echoid
    holographic
    im_pio_ssible
    jxl4fun
    jxl4fun2
    memorybank
    NautilusInstituteContinuousIntegrationAndContinuousDelivery
    nfuncs1
    Rainbow_Mountain
    Seven_El_Bee
    Ten_of_Spades
    tetrx
    tiniii
    totem1
    you_wouldnt_download_a_3d_printer

    2024

    16 challenges

    Quals pwn9

    chatgpt_wasi
    deenzone
    dotcom
    libprce3
    npc_ua
    saferrrust
    stars
    suscall
    walker

    Quals rev7

    amib
    amib_Easter_egg
    hikarrro
    nirai_1
    nirai_2
    nloads
    pass_it_on

    2022

    11 challenges

    Quals11

    adamd
    BIOS
    constricted
    Crypto_Chall
    Hash_It
    not-so-advanced
    OldSchool
    PrettyRandomFunction
    Secrecy
    smugglers_cove
    Teedium_Wallet

    2021

    20 challenges

    Quals crypto4

    back-to-qoo
    nooombers
    qoo-or-ooo
    smart-cryptooo

    Quals pwn11

    baby-a-fallen-lap-ray
    exploit-for-dummies
    gran-a-fallen-lap-ray
    looocked-ooout
    mama-a-fallen-lap-ray
    mooosl
    mra
    nooopster
    pza999
    rad
    segnalooo

    Quals rev4

    pooow-buddy
    pooow-pal
    rick
    tiamat

    Quals web1

    threefactooorx

    2020

    15 challenges

    Quals15

    adventure-on-lifebooox
    babymaze
    biooosless
    blursed
    bytecoooding
    coooppersmith
    cursed
    fungez
    interrupted
    keml
    mamamaze
    maybe
    nooopsled
    ooofs
    supersafecalc

    2019

    19 challenges

    Quals19

    babyheap
    election_coin
    Hotel-California
    RTOoOS
    shitorrent
    speedrun-001
    speedrun-002
    speedrun-003
    speedrun-004
    speedrun-005
    speedrun-006
    speedrun-007
    speedrun-008
    speedrun-009
    speedrun-010
    speedrun-011
    speedrun-012
    VeryAndroidoso
    vitor

    2018

    1 challenges

    misc1

    Quals
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