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    The Gray Code Decoder and Gray Code Encoder holes will go live in approximately . Why not try and solve them ahead of time?

    XenThe 🇬🇧

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    63 / 126 Holes

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    4 / 64 Langs

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    26 / 109 Cheevos

    📅

    12 Days of Christmas
    65th
    99 Bottles of Beer
    42nd
    Arabic to Roman
    16th
    Ascending Primes
    28th
    Card Number Validation
    56th
    Catalan Numbers
    89th 394th
    Catalan’s Constant
    55th
    Christmas Trees
    82nd
    Collatz
    29th
    CSS Colors
    83rd
    Day of Week
    101st
    Diamonds
    158th
    Divisors
    88th
    Emirp Numbers
    133rd
    Emirp Numbers (Long)
    80th
    Evil Numbers
    86th
    Evil Numbers (Long)
    50th
    Farey Sequence
    61st
    Fibonacci
    144th
    Fizz Buzz
    1st9th 5th
    Foo Fizz Buzz Bar
    34th
    Game of Life
    33rd
    Happy Numbers
    76th
    Happy Numbers (Long)
    115th
    Hilbert Curve
    20th
    Intersection
    29th
    Kolakoski Sequence
    72nd
    Leap Years
    105th 846th
    Look and Say
    42nd
    Lucky Numbers
    59th
    Lucky Tickets
    55th
    Mandelbrot
    18th
    Minesweeper
    24th
    N Queens
    47th
    Niven Numbers
    260th
    Niven Numbers (Long)
    96th
    Number Spiral
    45th
    Odious Numbers
    107th
    Odious Numbers (Long)
    58th
    Ordinal Numbers
    1st
    Pascal’s Triangle
    66th
    Prime Numbers
    177th
    Prime Numbers (Long)
    95th
    Quine
    32nd
    Repeating Decimals
    32nd
    Rijndael S-box
    48th
    Roman to Arabic
    55th
    ROT13
    20th
    Rule 110
    55th
    Scrambled Sort
    42nd
    Seven Segment
    86th
    SI Units
    31st
    Sierpiński Triangle
    39th
    Spelling Numbers
    30th
    Time Distance
    53rd
    Tongue-twisters
    43rd
    Vampire Numbers
    58th
    λ
    82nd
    π
    82nd
    τ
    65th
    φ
    67th
    √2
    78th
    𝑒
    81st