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    The Calendar hole will go live in approximately . Why not try and solve it ahead of time?

    DelaneyJM

    5,981
    •
    5,919
    🥇2
    •
    🥈0
    •
    🥉0

    ⛳

    9 / 123 Holes

    🔣

    1 / 62 Langs

    🏆

    5 / 98 Cheevos

    📅

    Arithmetic Numbers
    584
    Collatz
    957
    Fibonacci
    747
    Leap Years
    802
    Lucky Numbers
    454
    Niven Numbers (Long)
    688
    Odious Numbers
    550
    Odious Numbers (Long)
    618
    Pangram Grep
    581