The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Rule 110 in all languages 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 Points Chars Time Submitted 481st cywong-amino 🇭🇰 657 107 13ms 25 Jun 2020 481st FlorianCassayre 🇫🇷 657 107 11ms 3 Oct 2022 483rd Shanethegamer 🇺🇸 655 85 360ms 28 Oct 2024 484th alexkunin 655 155 7ms 20 Jul 2019 485th hiddicop 🇸🇪 652 83 41ms 30 Jan 2021 486th Shanethegamer 🇺🇸 652 146 502ms 27 Feb 2023 487th cykim8811 651 89 14ms 11 Jul 2024 488th Shanethegamer 🇺🇸 651 108 10ms 27 Feb 2023 489th SwordF-Official 649 57 3ms 6 Sep 2025 490th MeWhenI 🇻🇦 649 65 6ms 26 May 2023 491st Ripick 648 159 381ms 25 May 2023 492nd MeWhenI 🇻🇦 645 109 9ms 25 Nov 2022 492nd KrausRaus 🇺🇸 645 109 10ms 11 Dec 2022 494th jakobkordez 🇸🇮 643 90 12ms 8 Nov 2022 494th moustave 643 90 10ms 4 Jun 2025 494th InigoK 🇺🇸 643 90 14ms 22 Aug 2025 494th Babafaba 643 90 12ms 26 Oct 2025 498th Shanethegamer 🇺🇸 642 120 6ms 27 Feb 2023 499th ScottHamper 642 138 159ms 2 Mar 2022 500th ScottHamper 639 110 10ms 18 Dec 2021 501st MeWhenI 🇻🇦 639 124 83ms 12 Dec 2022 502nd NickTheEASDude 🇺🇸 639 159 4ms 4 Nov 2024 503rd MarcMush 🇫🇷 638 91 1,595ms 3 Jan 2024 504th emgordon154 638 98 124ms 6 Sep 2024 504th dokutan 638 98 122ms 15 Jun 2025 506th AZTECCO 637 121 8ms 24 Sep 2025 507th iznax 637 124 361ms 21 Nov 2021 508th Shanethegamer 🇺🇸 637 139 454ms 27 Feb 2023 509th glesnick 636 91 17ms 15 Jul 2022 510th user189032 634 111 10ms 29 May 2019 511th marcin7Cd 634 124 139ms 7 Oct 2020 511th strout 634 124 135ms 15 Aug 2022 513th cefqrn 633 168 417ms 4 Jul 2025 514th MeWhenI 🇻🇦 632 88 511ms 24 May 2024 515th annaproxy 631 124 23ms 9 Sep 2022 516th HumanoidCPU 629 92 16ms 17 Feb 2025 517th user189032 629 125 130ms 30 May 2019 518th rak1507 🇬🇧 628 63 33ms 19 Oct 2021 519th CaedenHarper 🇨🇦 628 112 9ms 8 days ago 520th KevinMarquette 🇺🇸 627 100 318ms 5 Jun 2020 521st bac0id 627 123 6ms 28 Jun 2024 522nd Shanethegamer 🇺🇸 625 158 15ms 21 Apr 2023 523rd namelessiw 625 170 414ms 10 Oct 2025 524th achimkrause 624 126 136ms 15 Dec 2019 525th argusdusty 🇺🇸 623 93 15ms 31 Dec 2020 525th jatloe 623 93 40ms 28 Oct 2024 525th solisolu 623 93 11ms 11 days ago 528th Trip-kun 623 163 3ms 9 Oct 2024 529th targrik 622 113 10ms 28 Mar 2025 529th Yax42 🇫🇷 622 113 14ms 10 Sep 2025 531st clockworknazo 622 119 32ms 4 Jul 2023 532nd GrayJoKing 🇦🇺 622 236 8ms 25 Jul 2020 533rd perlebach 🇨🇿 621 68 3ms 14 Aug 2021 534th MeWhenI 🇻🇦 621 173 47ms 30 Oct 2023 535th Babafaba 618 90 353ms 26 Oct 2025 536th Mandrzejy 🇵🇱 618 154 487ms 7 Mar 2024 537th oscargeerts 617 125 6ms 30 Jun 2025 538th Shanethegamer 🇺🇸 615 145 4,606ms 28 Oct 2024 539th mousetail 🇳🇱 614 157 145ms 9 Jun 2024 540th BambooleanLogic 🇸🇪 612 115 10ms 26 Oct 2022 541st ZakkkkAttackkkk 🇵🇭 612 126 6ms 6 Sep 2023 542nd thisishowmymindworks 🇳🇴 610 95 12ms 17 Aug 2020 543rd Shanethegamer 🇺🇸 609 118 10ms 21 Apr 2023 544th Frowny 609 129 148ms 5 Dec 2018 545th emgordon154 609 225 1,699ms 24 Jun 2024 546th abailey2020 🇺🇸 609 241 8ms 18 Apr 2020 547th Natanaelel 🇸🇪 608 94 1,064ms 6 Aug 2023 548th SwordF-Official 608 167 4ms 11 Aug 2025 549th marcin7Cd 607 168 114ms 8 Feb 2021 550th rambox11 606 116 11ms 6 Dec 2019 550th coreynash 606 116 11ms 19 Feb 2024 552nd HumanoidCPU 605 92 368ms 17 Feb 2025 553rd SirBogman 🇺🇸 603 363 18ms 23 Nov 2022 554th edsrzf 🇳🇿 602 95 1,065ms 11 Jul 2025 555th lynn 602 128 6ms 21 Mar 2022 556th PatrickStephansen 🇿🇦 601 117 11ms 8 Mar 2021 557th mtirado1 601 169 4ms 24 Dec 2022 557th frosster 601 169 2ms 15 May 2023 559th DialFrost 🇸🇬 601 177 460ms 19 Nov 2025 560th orthoplex 🇨🇽 600 66 33ms 27 Feb 2020 First Prev 481–560 of 1,615 Next Last