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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
    634
    Collatz
    1,000
    Fibonacci
    771
    Leap Years
    813
    Lucky Numbers
    486
    Niven Numbers (Long)
    717
    Odious Numbers
    571
    Odious Numbers (Long)
    651
    Pangram Grep
    607