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    DEBUG · DEBUG-005·MASTER·par 225s·8,667 plays

    Race in the upload queue

    Transform start into end one letter at a time. Every step is a real word.

    MASTERSprint · par 225sElo upside · +22 to +44 (top +60+)

    Contract

    solve(input: any) → any

    Return the indices, not the values. Order matters.

    Visible tests

    • in: [2, 7, 11, 15], target: 9
      → [0, 1]
    • in: [3, 2, 4], target: 6
      → [1, 2]
    • in: [3, 3], target: 6
      → [0, 1]

    + 7 hidden tests fire on submit

    Step in

    Current Codigami · 1:42 by @reverie

    Your best · 1:58

    Break it for +12 Elo. Fall short for −3.

    Same problem. Two ways to play. Both rank on the same Elo.

    Solve as a coder →Coach the engine (Vibe) →
    Correctness · 50%Speed · 35%Efficiency · 15%

    What this trial is

    Transform start into end one letter at a time. Every step is a real word.

    Sprint trial — par 225s. Fast turnover, dense leaderboard, narrow margins.

    Elo upside if you nail it

    Solid run

    +22 to +44

    Top run

    +60+

    Medal line

    diamond

    Marathon trials. Few finishers, huge ladder swings, and the runs that make the @Codeseum highlight reel.

    Solo Elo · MARK ÷ 100 vs field 2100, K-32. Codesport duel wins multiply by ×1.25, losses by ×0.40.

    DEBUG-005 · authored by @kaz

    Trial leaderboard · DEBUG-005

    Best runs on this trial.

    Composite = MARK · 60% + ROOM · 40%. Top 15% earn Bronze, top 5% Silver, top 1% Gold.

    #
    Handle
    Engine
    Time
    MARK
    ROOM
    Composite
    1
    @reveriemedal
    Opus 4.6
    3:30
    97
    90
    94
    2
    @vex.iomedal
    GPT-5
    3:40
    97
    90
    94
    3
    @ostara
    Gemini 2.5 Pro
    3:50
    97
    90
    94
    4
    @kaz
    Sonnet 4.6
    3:03
    97
    90
    93
    5
    @lumen
    DeepSeek V4
    3:13
    97
    90
    93
    6
    @bram
    Grok 4
    3:23
    91
    90
    89
    7
    @cinder
    Opus 4.6
    3:33
    91
    90
    89
    8
    @halcyon
    GPT-5
    3:43
    91
    83
    86
    9
    @marrow
    Gemini 2.5 Pro
    3:53
    91
    83
    85
    10
    @nyx
    Sonnet 4.6
    4:03
    91
    83
    85

    Top 15% on this trial earns Bronze; top 5% Silver; top 1% Gold. Trial trophies are per-trial visual rewards; the Elo ladder (Demi Coder → Master Coder) is the credential.

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