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

    AlephSquirrel

    108,039
    97,791
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    123 / 123 Holes

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    54 / 62 Langs

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    72 / 99 Cheevos

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    1 Hole Authored

    12 Days of Christmas
    1,518th 1,193rd16th 174th 419th
    24 Game
    300th 224th
    99 Bottles of Beer
    334th240th 698th 359th
    Abundant Numbers
    1,219th 889th231st 338th 60th 1,196th 1,337th 497th 602nd
    Abundant Numbers (Long)
    1,407th 231st378th 612th 55th 242nd 1,541st 955th 176th
    Arabic to Roman
    309th17th 339th 653rd 155th 99th
    Arithmetic Numbers
    334th754th 397th 157th
    Arrows
    177th143rd 431st 83rd
    Ascending Primes
    391st140th 198th 357th
    ASCII Table
    392nd441st 983rd 487th 332nd
    Billiards
    233rd146th 149th
    brainfuck
    283rd474th 289th 157th
    Card Number Validation
    117th241st 526th 565th 4th
    Catalan Numbers
    1,074th 555th394th 638th 146th 277th
    Catalan’s Constant
    383rd220th 307th 402nd 333rd
    Christmas Trees
    761st836th 259th 632nd 787th 723rd
    Collatz
    1,083rd 218th349th 2,269th 1st 731st 64th 2,086th 1,956th 443rd 2,195th
    CSS Colors
    187th 172nd
    Cubes
    473rd472nd 439th
    Day of Week
    274th940th 1,179th 662nd 61st
    DFA Simulator
    192nd314th 421st 53rd
    Diamonds
    472nd313th 386th 608th 453rd 728th
    Divisors
    2,031st 794th808th 1,503rd 666th 2,347th 1,872nd 3,238th 28th 3,303rd
    Emirp Numbers
    610th213th 615th 1,163rd 588th
    Emirp Numbers (Long)
    250th279th 382nd 211th
    Emojify
    262nd96th 261st 143rd 456th 236th
    Evil Numbers
    4,308th 1,032nd 706th470th 3,510th 1,797th 2,811th626th 509th 1,499th 2,659th 45th 2,680th 2,347th
    Evil Numbers (Long)
    912th 472nd378th 1,731st 1,148th 472nd 946th 1,627th 112th 1,632nd 1,573rd
    Factorial Factorisation
    344th276th 318th
    Farey Sequence
    556th646th 316th 301st 510th
    Fibonacci
    2,058th 746th 7,475th 2,599th1,101st 4,351st 1,981st 5,106th 214th 1,981st 6,489th 45th 1,169th 4,156th
    Fizz Buzz
    8,531st12,490th5,605th12,237th9,984th10,859th11,532nd3,701st10,964th6,507th 7,672nd10,543rd1,411th1,501st11,256th10,455th3,711th10,453rd10,488th 3,505th12,441st9,110th1st9,736th12,438th12,158th4,049th8,147th1,705th7,100th5,739th5,264th10,637th9,767th9,855th7,775th3,777th10,935th11,963rd11,660th60th6,201st11,906th4,860th7,723rd4,776th10,059th9,481st10,246th10,041st12,371st3,955th
    Foo Fizz Buzz Bar
    325th646th 1,103rd 603rd 955th 1,898th 1,529th 11th 1,613th
    Forsyth–Edwards Notation
    496th210th 118th 395th
    Fractions
    181st404th 302nd 94th
    Game of Life
    268th192nd 161st
    Gijswijt’s Sequence
    250th243rd 205th
    Happy Numbers
    1,021st 1,085th 1,134th451st 1,928th 117th 1,768th 1,103rd 334th 30th 919th
    Happy Numbers (Long)
    922nd 363rd307th 718th 37th 728th 937th 133rd 223rd 714th
    Hexdump
    483rd429th 263rd 468th
    Hilbert Curve
    135th122nd 166th
    Intersection
    505th897th 15th 213th 221st
    Inventory Sequence
    407th923rd 471st 166th
    ISBN
    1,355th 435th645th 893rd 333rd 517th 739th 193rd
    Jacobi Symbol
    156th266th 136th 310th 519th 108th
    Kaprekar Numbers
    300th364th 274th
    Kolakoski Constant
    149th163rd 275th 643rd 282nd 190th
    Kolakoski Sequence
    526th746th 1,149th 774th 761st 642nd 444th
    Leap Years
    826th 811th714th 2,263rd 1st 1,079th 296th 9th 1,646th 408th
    Levenshtein Distance
    262nd515th 47th
    Leyland Numbers
    199th257th 249th 842nd 23rd
    ln 2
    146th664th 624th 440th 28th
    Look and Say
    401st545th 637th 768th 53rd 139th
    Lucky Numbers
    492nd343rd 338th 488th 439th
    Lucky Tickets
    90th262nd 256th 286th 13th
    Mahjong
    202nd206th 200th
    Mandelbrot
    311th266th 290th
    Maze
    287th424th 269th
    Medal Tally
    348th462nd 253rd
    Minesweeper
    135th167th 140th
    Morse Decoder
    218th171st 193rd 197th
    Morse Encoder
    169th 21st 124th
    Musical Chords
    132nd78th 104th
    N Queens
    241st 296th
    Niven Numbers
    3,059th 1,506th 445th1,393rd 1,183rd 1st 627th 353rd 1,907th 49th 1,691st 2,502nd
    Niven Numbers (Long)
    333rd812th 1,189th 20th 579th 944th 1,133rd 164th 1,002nd
    Number Spiral
    415th 380th 337th
    Odious Numbers
    3,381st 799th 576th383rd 2,892nd 1,239th 2,494th411th 712th 313th 2,795th 43rd 2,242nd 2,240th
    Odious Numbers (Long)
    687th 408th295th 1,587th 897th 229th 216th 1,708th 41st 1,495th 1,444th
    Ordinal Numbers
    978th327th 910th 480th 745th 445th
    PalindromemordnilaP
    274th 519th 178th
    Pangram Grep
    1,566th 161st579th 2,091st1,378th 1,912th 1st 1,443rd 638th 1,424th 1,706th 1,820th 2,182nd 33rd 1,540th 2,495th
    Partition Numbers
    102nd268th 73rd
    Pascal’s Triangle
    846th 915th920th 567th 114th 1,823rd 829th 235th
    Pernicious Numbers
    281st 838th786th 1,018th 1st 955th 156th 1,055th 230th 38th 1,111th 1,730th
    Pernicious Numbers (Long)
    205th257th 882nd 32nd 705th 382nd 158th 543rd 938th
    Poker
    251st131st 169th 235th
    Polyominoes
    125th79th 120th
    Prime Numbers
    2,898th 1,564th 3,628th 774th1,112th 2,137th 723rd 1,439th636th 368th 1st 320th 115th 827th 2,273rd
    Prime Numbers (Long)
    971st 1,689th 572nd728th 949th 526th 903rd 362nd 1st 1,847th 210th 1,193rd 1,518th
    Proximity Grid
    171st221st 158th
    QR Decoder
    170th130th 143rd
    Quine
    1st 4,450th 2,815th620th 586th 149th 2,232nd 4,826th 166th
    Recamán
    400th191st 224th 1,092nd 72nd 1,127th
    Repeating Decimals
    380th268th 381st
    Reverse Polish Notation
    517th598th 687th 1st 54th
    Reversi
    276th 185th 150th
    Rijndael S-box
    37th142nd 78th
    Rock-paper-scissors-Spock-lizard
    113th91st 51st
    Roman to Arabic
    376th480th 602nd 67th 314th 685th 103rd
    ROT13
    362nd473rd 617th 8th
    Rule 110
    670th 254th331st 99th 209th
    Scrambled Sort
    166th244th 495th 369th 29th
    Set
    210th361st 223rd 21st
    Seven Segment
    405th 133rd82nd 46th
    SI Units
    244th174th 266th
    Sierpiński Triangle
    504th 469th165th 252nd 51st 435th
    Smith Numbers
    373rd159th 247th
    Spelling Numbers
    905th1st 369th
    Star Wars GPT
    177th 171st214th 63rd
    Star Wars Opening Crawl
    260th342nd 228th
    Sudoku
    252nd 341st
    Sudoku (Fill-in)
    289th 288th
    Ten-pin Bowling
    427th386th 417th
    Tic-tac-toe
    285th380th 345th 259th
    Time Distance
    152nd74th 141st
    Tongue-twisters
    386th607th 172nd 357th
    Topological Sort
    203rd249th 153rd
    Tower of Hanoi
    660th 309th458th 473rd258th 538th 587th 691st 215th
    Transpose Sentence
    317th476th 716th 1st 80th
    Trinomial Triangle
    95th 7th 407th 82nd
    United States
    431st168th 220th 335th 401st298th
    Vampire Numbers
    285th443rd 248th
    Van Eck Sequence
    551st315th 240th 363rd
    Zeckendorf Representation
    278th440th 61st
    Zodiac Signs
    377th 252nd361st 451st 270th 155th
    γ
    382nd385th 368th
    λ
    116th408th 82nd 486th
    π
    288th295th 719th 636th 490th 109th
    τ
    218th378th 630th 569th 442nd 99th
    φ
    202nd487th 916th 293rd 524th 38th
    √2
    220th658th 1,054th 362nd 653rd 40th
    𝑒
    237th713th 1,124th 873rd 500th 66th