The Calendar hole will go live in approximately 12 days. Why not try and solve it ahead of time?
All holes in Lua in chars. Achievements Cheevos Holes Languages Medals Miscellaneous All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Minesweeper Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Holes Points Chars Submitted 401st SnowballSH 1 738 61 28 Jan 2021 402nd zadobyte 1 736 91 16 Jan 2021 403rd Simon3995 🇳🇱 1 728 92 10 Jun 2020 403rd josiahdbarbieri 1 728 92 16 Mar 2023 405th RustemB 🇷🇺 2 721 1,082 21 May 2020 406th strogor 1 719 96 17 Sep 2025 407th Poggicek 1 714 77 23 Aug 2021 408th abailey2020 🇺🇸 1 713 94 27 Dec 2020 409th Ralac07 🇦🇺 2 713 1,158 27 Oct 2025 410th nico-bachner 2 712 2,448 28 Dec 2020 411th SpareManiKatti 3 709 2,201 19 Apr 2022 412th cipharius 1 706 177 20 Jan 2021 413th nemulilonala 1 705 95 13 Dec 2024 414th Beariish 1 703 158 27 Mar 2025 415th juntuu 1 698 63 25 Mar 2019 416th Dr3wand 1 698 96 26 Oct 2023 417th olleicua 🇺🇸 2 694 1,088 10 Mar 2024 418th neihousaigaai 1 692 65 11 Apr 2021 418th Dominoscompute 1 692 65 18 Jul 2022 420th h3ra993huskp 🇯🇵 1 691 97 13 Oct 2025 421st Sora1248 🇩🇪 1 677 65 19 Feb 2023 422nd elisherer 🇮🇱 1 677 99 7 Apr 2019 422nd aliakseikalosha 1 677 99 15 Oct 2024 424th SpiritAxolotl 🇺🇸 1 676 102 21 Mar 2024 425th sm1lko 1 672 64 14 Dec 2022 425th arthvr9 1 672 64 23 Oct 2024 427th zpiatt 1 672 67 31 Aug 2023 427th logalex8369 🇺🇸 1 672 67 20 hours ago 429th louisbosqui 1 670 100 29 Dec 2020 430th wowjeeez 1 663 83 23 Aug 2021 431st Xrymz 1 657 102 5 Apr 2019 431st Kyrremann 1 657 102 15 Jan 2020 433rd atenfyr 1 653 213 21 Jun 2020 434th aazuspan 1 647 68 3 May 2022 435th Wurlitzer 1 644 104 12 Feb 2018 436th hashbmo 2 644 1,218 15 Jul 2021 437th sech1p 🇵🇱 1 642 67 19 Apr 2021 438th 1231234md5 🇨🇳 1 638 69 11 Dec 2023 439th Blockyheadman 1 638 105 7 Nov 2025 440th volpi-m 🇫🇷 2 638 2,503 31 Aug 2020 441st andrew3600 1 634 71 20 Aug 2018 441st villfa 1 634 71 26 Apr 2019 441st leon-w 1 634 71 9 Mar 2020 441st furokku 1 634 71 12 Feb 2021 441st enbyte 1 634 71 24 May 2021 441st EthanGrant1 1 634 71 21 Apr 2022 441st shellbertt 🇨🇦 1 634 71 26 Sep 2022 441st weliveinhell 🇭🇹 1 634 71 1 Oct 2023 449th dillon-duncando 1 632 68 30 Nov 2021 450th britishben 1 632 106 29 Nov 2018 450th copoer 1 632 106 28 Feb 2023 450th TheCod-r 🇦🇶 1 632 106 21 Jun 2023 453rd 20kdc 1 631 198 13 Oct 2021 454th jspa2 1 626 107 4 Nov 2022 455th Mojken 5 626 5,055 3 Sep 2018 456th DaleNaci 1 615 109 3 Aug 2018 457th elgcodes 1 609 110 17 Jun 2021 458th GWStuart 2 608 1,145 15 Sep 2023 459th ArturLukianov 1 604 111 16 Dec 2020 459th Feniske 🇫🇷 1 604 111 10 Oct 2022 461st matthudgins 1 602 113 28 Mar 2019 462nd Seanharrs 1 598 112 14 Sep 2022 463rd jojo259 1 596 114 1 Dec 2021 464th Smetalo 1 595 74 25 Aug 2022 464th tik25 1 595 74 28 Mar 2024 466th hrubymar10 1 593 113 20 Feb 2024 467th orifu 1 591 93 24 Feb 2021 468th darkI33T 1 586 268 1 Sep 2025 469th varhammer 🇷🇺 1 584 77 31 Jan 2022 469th funnsam 🇭🇰 1 584 77 10 Jun 2023 471st jbyuki 1 584 238 28 Aug 2020 472nd jamespeilunli 1 583 115 4 Jul 2022 473rd nat-418 1 578 116 26 Oct 2022 474th Scupake 1 578 187 27 Jun 2024 475th KMisthebomb 1 573 117 6 Oct 2022 476th pandapawskat 1 563 119 30 Aug 2021 477th seyja 1 563 142 27 Nov 2021 478th ConorOBrien-Foxx 1 561 82 2 Mar 2019 479th zeaga 1 561 289 5 Dec 2021 480th j-Ewan 1 558 120 25 Feb 2022 First Prev 401–480 of 606 Next Last