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

    KasperKivimaeki (he/him) 🇫🇮

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    2600 lichess bullet - 2123 FIDE - TCC >> GCC

    123 / 123 Holes

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    24 / 62 Langs

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    62 / 99 Cheevos

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    4 Referrals

    12 Days of Christmas
    151st 2,755th 582nd
    24 Game
    124th 357th
    99 Bottles of Beer
    42nd 361st 334th 918th 1,147th
    Abundant Numbers
    252nd 548th 599th 1,017th690th 1,174th
    Abundant Numbers (Long)
    706th 50th 73rd 572nd533rd 711th 926th
    Arabic to Roman
    396th
    Arithmetic Numbers
    91st 34th 78th 208th107th540th 250th 1,045th
    Arrows
    248th
    Ascending Primes
    120th 154th 96th 503rd
    ASCII Table
    20th 35th 136th 463rd 753rd
    Billiards
    55th 155th 199th 280th
    brainfuck
    1,268th14th372nd32nd 110th55th61st439th 808th 545th 223rd
    Card Number Validation
    117th 169th 155th 422nd
    Catalan Numbers
    818th 1,176th 544th 236th
    Catalan’s Constant
    76th 690th
    Christmas Trees
    2,393rd67th 279th 1,163rd
    Collatz
    981st 568th 358th 255th144th 893rd 1,192nd
    CSS Colors
    257th 482nd 1,214th
    Cubes
    14th 263rd
    Day of Week
    277th 801st 340th 307th 440th61st
    DFA Simulator
    40th 54th 353rd
    Diamonds
    299th 504th 684th
    Divisors
    165th 875th 1,416th953rd 2,803rd 35th
    Emirp Numbers
    454th 932nd 509th 587th
    Emirp Numbers (Long)
    139th 155th 808th
    Emojify
    43rd
    Evil Numbers
    673rd 690th 735th606th 45th
    Evil Numbers (Long)
    290th 277th 578th390th 1,308th 115th
    Factorial Factorisation
    54th 140th 381st
    Farey Sequence
    58th 327th 431st
    Fibonacci
    3,394th 732nd865th627th 779th475th224th 511th3,761st6,462nd55th 3,336th 6,056th
    Fizz Buzz
    480th3,648th746th 2,804th579th23rd 499th 2,274th
    Foo Fizz Buzz Bar
    127th 247th 1,288th 1,055th
    Forsyth–Edwards Notation
    67th 240th 101st 537th
    Fractions
    141st 460th 330th 898th 480th 10th
    Game of Life
    20th 35th 469th
    Gijswijt’s Sequence
    179th 289th 422nd
    Happy Numbers
    846th 1,234th 748th1,218th 560th
    Happy Numbers (Long)
    83rd 267th 192nd289th 886th
    Hexdump
    165th 443rd
    Hilbert Curve
    16th 132nd 109th 253rd
    Intersection
    380th 373rd 736th
    Inventory Sequence
    66th 115th 482nd399th 566th
    ISBN
    43rd 204th 397th717th 849th
    Jacobi Symbol
    154th 158th 17th 504th
    Kaprekar Numbers
    208th 161st 813th
    Kolakoski Constant
    206th
    Kolakoski Sequence
    483rd 581st 843rd 532nd
    Leap Years
    315th 265th 1,004th 36th 607th
    Levenshtein Distance
    377th 38th 502nd
    Leyland Numbers
    350th 248th 4th
    ln 2
    223rd 393rd 108th
    Look and Say
    639th 865th 967th 904th
    Lucky Numbers
    145th 188th 147th 214th
    Lucky Tickets
    269th 232nd 334th
    Mahjong
    13th 22nd 87th 193rd
    Mandelbrot
    80th 212th 234th 283rd 365th
    Maze
    228th 207th
    Medal Tally
    156th 365th
    Minesweeper
    110th 64th 136th
    Morse Decoder
    140th
    Morse Encoder
    75th 148th
    Musical Chords
    132nd
    N Queens
    164th 199th 280th 341st
    Niven Numbers
    1,792nd 245th 423rd 661st607th63rd 296th 209th
    Niven Numbers (Long)
    429th 953rd 1,066th1,483rd 707th 548th
    Number Spiral
    151st 378th 536th
    Odious Numbers
    287th 367th 457th324th609th 43rd
    Odious Numbers (Long)
    433rd 252nd 486th255th 1,340th 41st
    Ordinal Numbers
    363rd 394th 291st 981st
    PalindromemordnilaP
    181st 404th
    Pangram Grep
    1,158th 1,182nd 581st357th524th 795th
    Partition Numbers
    236th 275th 194th 525th
    Pascal’s Triangle
    462nd 504th 490th
    Pernicious Numbers
    591st 263rd 511th 651st446th 289th 38th
    Pernicious Numbers (Long)
    604th 540th 148th
    Poker
    21st 149th
    Polyominoes
    20th 114th 43rd 180th
    Prime Numbers
    264th1,635th1,071st4,781st 1,330th743rd 1,152nd 415th
    Prime Numbers (Long)
    345th 744th 626th399th 968th 211th
    Proximity Grid
    96th 83rd
    QR Decoder
    165th
    Quine
    3,537th 262nd3,226th2,868th 4,177th 1,525th 2,174th 551st
    Recamán
    59th 136th 531st 566th
    Repeating Decimals
    117th
    Reverse Polish Notation
    143rd 377th 639th
    Reversi
    250th
    Rijndael S-box
    192nd844th
    Rock-paper-scissors-Spock-lizard
    49th 180th
    Roman to Arabic
    98th 238th 672nd 567th
    ROT13
    100th663rd171st 103rd 8th 613th 472nd
    Rule 110
    117th 290th 714th
    Scrambled Sort
    69th 264th 399th 274th
    Set
    75th 114th 324th
    Seven Segment
    24th 44th 450th
    SI Units
    139th 144th
    Sierpiński Triangle
    31st149th86th 286th179th 44th 150th
    Smith Numbers
    35th 83rd 29th 63rd305th30th 28th 593rd
    Spelling Numbers
    119th 373rd 308th
    Star Wars GPT
    197th 334th 236th
    Star Wars Opening Crawl
    113th
    Sudoku
    114th
    Sudoku (Fill-in)
    97th
    Ten-pin Bowling
    146th 159th 528th
    Tic-tac-toe
    254th 218th 434th
    Time Distance
    135th
    Tongue-twisters
    220th 596th
    Topological Sort
    48th 73rd 64th 206th
    Tower of Hanoi
    103rd81st175th 164th232nd89th269th 331st 453rd
    Transpose Sentence
    164th 505th
    Trinomial Triangle
    360th 213th
    United States
    311th 347th 188th
    Vampire Numbers
    307th 717th
    Van Eck Sequence
    181st 329th 324th233rd 257th
    Zeckendorf Representation
    35th 127th 474th
    Zodiac Signs
    233rd
    γ
    80th 220th
    λ
    105th 507th 582nd
    π
    112th 217th 277th 356th
    τ
    146th 208th 338th
    φ
    267th 629th 603rd
    √2
    275th 701st 4th
    𝑒
    260th 333rd 772nd 936th 67th975th