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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?

    Attero 🇸🇪

    40,475
    39,382
    🥇41
    🥈2
    🥉6

    47 / 126 Holes

    🔣

    13 / 64 Langs

    🏆

    26 / 109 Cheevos

    📅

    12 Days of Christmas
    9th 17th82nd13th9th72nd
    99 Bottles of Beer
    11th 9th70th10th5th61st
    Abundant Numbers
    24th 23rd 1st36th12th9th13th60th11th
    Abundant Numbers (Long)
    21st 1st 11th 9th
    Arabic to Roman
    57th
    Arrows
    25th
    ASCII Table
    22nd
    brainfuck
    59th 37th
    Christmas Trees
    6th3rd 23rd15th5th6th16th8th
    Collatz
    71st 53rd 247th
    Cubes
    8th 24th 41st
    Diamonds
    19th 53rd10th
    Divisors
    9th 22nd19th 62nd41st23rd1st9th1st9th
    Emirp Numbers
    24th 7th
    Emojify
    250th
    Evil Numbers
    33rd14th24th 37th15th17th13th1st21st
    Evil Numbers (Long)
    20th 41st
    Fibonacci
    17th 52nd43rd28th 36th80th1st1st13th1st28th
    Fizz Buzz
    78th 1st3rd10th 62nd68th1st12th1st44th16th
    Foo Fizz Buzz Bar
    24th 55th 1st134th
    Happy Numbers
    32nd 24th 151st20th
    Happy Numbers (Long)
    15th
    Intersection
    36th 8th123rd
    ISBN
    163rd
    Leap Years
    23rd10th7th 8th35th2nd5th18th57th13th
    Leyland Numbers
    11th
    Look and Say
    25th
    Niven Numbers
    34th39th27th 27th45th1st23rd7th83rd26th
    Odious Numbers
    34th14th25th 38th11th17th18th1st24th
    Odious Numbers (Long)
    28th 1st
    Ordinal Numbers
    21st33rd 19th46th 13th4th13th
    Pangram Grep
    7th 34th59th 60th20th
    Pascal’s Triangle
    23rd 28th 7th43rd18th
    Pernicious Numbers
    66th42nd25th 45th53rd29th 193rd29th
    Prime Numbers
    34th18th4th 42nd37th1st25th31st143rd19th
    Prime Numbers (Long)
    26th
    Quine
    1st1st25th1st 41st 1st5th75th14th
    Recamán
    75th 157th
    Roman to Arabic
    41st 83rd
    Rule 110
    9th23rd 15th18th8th3rd58th
    Seven Segment
    54th 54th14th
    Sierpiński Triangle
    24th 25th8th11th45th7th
    Spelling Numbers
    63rd 39th
    Tongue-twisters
    118th 216th
    Vampire Numbers
    80th
    π
    87th 72nd
    τ
    67th