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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?

    lynn (she/her)

    116,317
    112,866
    💎70
    🥇569
    🥈182
    🥉222

    124 / 126 Holes

    🔣

    48 / 64 Langs

    🏆

    68 / 109 Cheevos

    📅

    1 Hole Authored

    9 Referrals

    12 Days of Christmas
    1,041st 17th 239th 628th141st 747th 200th 401st 949th 136th 237th2,553rd
    24 Game
    143rd 270th 43rd
    99 Bottles of Beer
    409th 139th 195th 591st 389th 249th 464th 548th370th 263rd 3,404th 2,299th
    Abundant Numbers
    1,222nd 1,158th 1st97th 531st 521st 68th 910th 2,464th 1,519th711th 505th391st 1,445th1,542nd3,632nd
    Abundant Numbers (Long)
    423rd 1st118th 400th 1,292nd 197th 154th
    Arabic to Roman
    21st 728th 291st 713th 818th437th70th 385th106th 600th1,011th
    Arithmetic Numbers
    22nd224th 99th 659th
    Arrows
    142nd 73rd261st 212th 147th 82nd417th 24th 289th 174th28th 49th214th 376th
    Ascending Primes
    90th86th 18th 398th
    ASCII Table
    28th 136th 16th91st 269th 546th 192nd 359th3rd 307th121st 625th 1,740th
    Billiards
    64th 53rd 100th
    brainfuck
    1,350th 198th 52nd435th 694th 169th 74th 64th 757th
    Card Number Validation
    191st 170th
    Catalan Numbers
    198th 420th 12th253rd 26th 1,287th 1,277th 42nd 125th796th1,058th
    Catalan’s Constant
    276th 3rd989th 164th 206th 602nd
    Christmas Trees
    163rd 1st91st 365th 273rd 311th 853rd324th 154th122nd 243rd2,143rd
    Collatz
    348th 37th558th 67th179th 966th 474th 339th
    Continued Fractions
    168th
    CSS Colors
    417th381st 384th897th336th 339th 247th478th 258th210th 414th383rd 350th393rd367th 353rd316th63rd1,038th150th 309th 318th252nd
    Cubes
    106th 18th195th 331st 558th 75th 134th237th 321st 1,107th 202nd27th
    Day of Week
    301st 912th696th 414th 987th 1st 64th 984th
    DFA Simulator
    142nd173rd 41st
    Diamonds
    101st 147th 18th73rd 608th 179th 432nd 314th21st 159th 427th1,399th
    Divisors
    2,251st 2,074th 961st 675th492nd 1st 701st 2,212th 1,456th 746th 3,303rd1,496th28th 2,561st388th588th3,017th 1,476th4,657th
    Emirp Numbers
    58th 427th 634th 300th 97th307th 366th 238th357th 35th212th 319th 949th 909th
    Emirp Numbers (Long)
    29th263rd 144th 1,099th 353rd
    Emojify
    129th146th 270th 150th 215th
    Evil Numbers
    1,085th 717th 1,261st 39th506th 192nd 1st 904th 954th 608th48th 405th459th 800th 1,903rd1,212th3,288th
    Evil Numbers (Long)
    276th 35th344th 1,338th 516th44th
    Factorial Factorisation
    70th 127th
    Farey Sequence
    25th329th 420th
    Fibonacci
    767th459th 5,416th 2,952nd 1,079th 4,081st 1st426th 2,989th 232nd2,028th526th2,043rd 541st 2,219th 2,799th3,365th 1,902nd46th 218th1,189th742nd4,316th 4,682nd1,098th8,623rd
    Fizz Buzz
    6,188th12,962nd6,048th13,006th2,430th4,283rd2,527th12,496th 1,519th4,381st3,400th 1,492nd 12,247th12,629th5,666th1st1,342nd9,151st7,667th7,285th136th718th2,532nd4,691st 2,680th4,992nd2,649th11,275th1,368th618th26th4,723rd61st 3,137th538th1,335th5,288th 12,703rd7,010th6,647th3,514th9,751st3,553rd
    Foo Fizz Buzz Bar
    590th 493rd446th 2,033rd 732nd 557th 522nd1,272nd9th 470th1,409th
    Forsyth–Edwards Notation
    38th92nd 781st 269th
    Fractions
    570th 465th 1st308th 765th 542nd 459th650th 10th625th 1,342nd
    Game of Life
    117th 197th 783rd
    Gijswijt’s Sequence
    108th 358th61st 409th 117th 401st7th 457th192nd 198th122nd
    Happy Numbers
    538th 688th993rd 851st 386th 122nd163rd 781st 1st 671st 1,302nd 442nd337th32nd 102nd238th 1,215th 1,134th902nd2,566th
    Happy Numbers (Long)
    329th 56th113th 457th 16th 541st 1,007th 434th617th
    Hexdump
    295th 142nd169th 228th 42nd 432nd
    Hilbert Curve
    29th
    Intersection
    665th 242nd 2nd70th 13th 930th 484th 1,111th 811th245th 155th 464th
    Inventory Sequence
    150th 292nd 1st247th 441st 35th 478th
    ISBN
    417th 521st149th 32nd 55th 463rd 235th 637th
    Jacobi Symbol
    377th 13th 204th 370th 171st
    Kaprekar Numbers
    278th 384th
    Kolakoski Constant
    342nd 124th 8th 438th 357th 619th 838th575th1,023rd773rd
    Kolakoski Sequence
    744th 91st 112th 1st 433rd 718th286th 389th 1,242nd
    Leap Years
    824th94th 897th 242nd 169th162nd 66th 492nd690th1,331st187th 460th 850th 20th559th404th 2,583rd714th778th 351st1,820th 3,325th
    Levenshtein Distance
    135th 444th 244th 782nd 1,064th 87th 596th 3rd389th 455th631st
    Leyland Numbers
    604th 281st 254th148th 5th 519th 650th 320th25th 472nd 724th1,082nd
    ln 2
    151st 463rd212th 563rd 3rd 28th
    Look and Say
    1,461st 279th 321st103rd 579th 171st256th57th 612th 11th 372nd435th 706th 572nd1,142nd
    Lucky Numbers
    129th 219th 306th70th 220th 30th 254th 969th
    Lucky Tickets
    191st 11th123rd 53rd 342nd 184th13th 283rd351st686th
    Mahjong
    207th
    Mandelbrot
    150th 254th
    Maze
    8th172nd
    Medal Tally
    284th88th 190th 239th
    Minesweeper
    164th
    Morse Decoder
    251st 147th241st 194th 300th240th
    Morse Encoder
    257th 122nd 34th 338th 253rd 232nd 216th
    Multitap Input
    52nd
    Musical Chords
    365th152nd 122nd 32nd 74th 206th 53rd 129th
    N Queens
    41st 297th
    Niven Numbers
    1,041st424th 1,545th461st 279th1,083rd 874th 1st398th 2,021st3,075th123rd 1st 376th562nd1,226th 1,742nd 1,728th988th50th 586th1,194th515th 1,729th 602nd2,592nd789th2,233rd
    Niven Numbers (Long)
    219th 722nd 20th324th 1st 746th 57th 90th570th
    Number Spiral
    123rd 405th 95th 75th 14th 2nd 86th 185th 297th 596th 503rd
    Odious Numbers
    879th592nd 566th 1,134th 37th462nd 149th 1st 791st 818th 1,413th 491st46th 1,972nd 270th 685th 2,131st770th2,839th
    Odious Numbers (Long)
    398th 35th296th 1,307th 425th44th
    Ordinal Numbers
    885th 445th 828th 938th 854th 991st280th 780th 629th3rd 1,188th1,262nd
    PalindromemordnilaP
    104th 125th
    Pangram Grep
    1,607th 166th 433rd 1st189th 93rd 609th 1,358th 1,118th74th 156th 258th 1,629th
    Partition Numbers
    222nd 289th
    Pascal’s Triangle
    413th 754th 497th 124th211th 1st 1st 538th2,511th 833rd53rd 1,038th 295th 1,200th704th1,640th
    Pernicious Numbers
    289th396th 1,139th370th 265th917th 789th 738th1st473rd 110th2,092nd177th 527th 589th975th 237th331st136th833rd40th 160th533rd475th 1,203rd 955th1,970th 2,130th
    Pernicious Numbers (Long)
    221st 557th504th 1st 745th 34th 237th
    Poker
    154th 175th 245th150th 220th 130th 273rd
    Polyominoes
    22nd
    Prime Numbers
    1,207th511th 2,019th 961st 787th345th 1st 1st 392nd 1,815th 664th122nd 241st416th 920th 2,258th 2,208th
    Prime Numbers (Long)
    636th 511th 551st416th 1st 1st 959th 698th221st 765th468th
    Proximity Grid
    131st
    QR Decoder
    175th 252nd 94th142nd 157th 300th
    Quine
    1st 273rd 4,315th1,456th 2,903rd649th3,506th 1,797th1,728th 1,629th152nd732nd 3,923rd243rd 1,518th 1,334th 1,940th1,774th547th 1,884th169th 1,436th 3,400th 5,345th2,153rd
    Recamán
    293rd 663rd141st 925th 266th 600th374th 976th 644th977th
    Repeating Decimals
    125th 254th 43rd
    Reverse Polish Notation
    338th 1st134th 491st 189th 93rd 294th
    Reversi
    231st
    Rijndael S-box
    184th 258th
    Rock-paper-scissors-Spock-lizard
    151st 133rd 722nd 273rd 82nd 238th242nd 429th
    Roman to Arabic
    474th 70th228th 642nd 524th 608th 864th108th 404th 661st
    ROT13
    289th 112th 11th 139th 301st
    Rule 110
    555th 90th 167th 97th 273rd 452nd 336th 312th29th 431st
    Scrambled Sort
    193rd 30th 243rd
    Set
    179th 23rd
    Seven Segment
    1,208th 293rd 60th 283rd 212th 227th 658th143rd 210th
    SI Units
    107th 136th 360th
    Sierpiński Triangle
    520th 438th 246th 85th 254th 254th 253rd 463rd155th 366th 811th
    Smith Numbers
    259th 182nd 327th 630th 1,016th308th 596th
    Spelling Numbers
    1st 217th 129th 379th 225th 521st 252nd 341st619th
    Star Wars GPT
    99th 5th 166th
    Star Wars Opening Crawl
    251st 101st 87th 60th 186th 221st 96th 298th 38th 299th
    Sudoku
    95th 111th 106th 232nd 129th 177th
    Sudoku (Fill-in)
    255th 88th 69th 76th 209th
    Ten-pin Bowling
    435th 504th 265th 110th397th 191st 126th 264th 368th 472nd
    Tic-tac-toe
    296th 299th
    Time Distance
    19th54th 154th
    Tongue-twisters
    602nd 946th375th 606th 282nd 476th 351st 866th 337th 803rd285th 138th 758th 444th581st
    Topological Sort
    42nd
    Transpose Sentence
    269th 1st148th 31st 441st192nd
    Trinomial Triangle
    9th123rd 13th
    United States
    209th 428th 262nd2nd
    Vampire Numbers
    682nd 115th 387th22nd 430th 258th 280th105th 510th 938th
    Van Eck Sequence
    1,263rd232nd 423rd 1st158th 431st 488th 176th13th 853rd 816th
    Zeckendorf Representation
    144th 421st 62nd
    Zodiac Signs
    184th 37th335th 47th
    γ
    270th 1st 177th 861st
    λ
    304th 314th144th 1,510th1,486th 1,282nd 217th 1,206th237th 475th 251st191st
    π
    887th 391st 140th341st 4th 23rd2,392nd 643rd 196th 479th115th 1,481st 1,652nd1,557th
    τ
    372nd 349th 4th 1,455th 569th 139th 577th215th 1,017th 1,102nd1,052nd
    φ
    198th 383rd 305th253rd 162nd 100th1,634th 869th 15th 670th38th 1,160th 1,385th1,188th
    √2
    224th 405th 309th 458th 569th1,891st 806th 13th 766th40th 1,389th 1,582nd1,417th
    𝑒
    792nd 244th 317th 442nd 1st 19th2,225th 525th 224th 1,053rd69th 1,413th 1,482nd1,484th