The Calendar hole will go live in approximately 7 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 KatieLG 🇬🇧 657 240 48ms 83 mins ago 484th Shanethegamer 🇺🇸 655 85 360ms 28 Oct 2024 485th hiddicop 🇸🇪 652 83 37ms 30 Jan 2021 486th Shanethegamer 🇺🇸 652 146 419ms 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 NickTheEASDude 🇺🇸 649 159 4ms 4 Nov 2024 492nd Ripick 648 159 381ms 25 May 2023 493rd MeWhenI 🇻🇦 645 109 9ms 25 Nov 2022 493rd KrausRaus 🇺🇸 645 109 10ms 11 Dec 2022 495th jakobkordez 🇸🇮 643 90 12ms 8 Nov 2022 495th moustave 643 90 10ms 4 Jun 2025 495th InigoK 🇺🇸 643 90 14ms 22 Aug 2025 495th Babafaba 643 90 12ms 26 Oct 2025 499th Shanethegamer 🇺🇸 642 120 6ms 27 Feb 2023 500th ScottHamper 642 138 159ms 2 Mar 2022 501st ScottHamper 639 110 10ms 18 Dec 2021 502nd MeWhenI 🇻🇦 639 124 83ms 12 Dec 2022 503rd MarcMush 🇫🇷 638 91 1,358ms 3 Jan 2024 504th emgordon154 638 98 123ms 6 Sep 2024 504th dokutan 638 98 122ms 15 Jun 2025 506th AZTECCO 637 121 8ms 24 Sep 2025 507th iznax 637 124 353ms 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 Trip-kun 633 163 4ms 9 Oct 2024 514th cefqrn 633 168 417ms 4 Jul 2025 515th MeWhenI 🇻🇦 632 88 511ms 24 May 2024 516th annaproxy 631 124 23ms 9 Sep 2022 517th HumanoidCPU 629 92 16ms 17 Feb 2025 518th user189032 629 125 130ms 30 May 2019 519th rak1507 🇬🇧 628 63 33ms 19 Oct 2021 520th CaedenHarper 🇨🇦 628 112 9ms 14 days ago 521st KevinMarquette 🇺🇸 627 100 305ms 5 Jun 2020 522nd bac0id 627 123 6ms 28 Jun 2024 523rd Shanethegamer 🇺🇸 625 158 15ms 21 Apr 2023 524th namelessiw 625 170 414ms 10 Oct 2025 525th achimkrause 624 126 136ms 15 Dec 2019 526th argusdusty 🇺🇸 623 93 15ms 31 Dec 2020 526th jatloe 623 93 40ms 28 Oct 2024 526th solisolu 623 93 11ms 17 days ago 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 401ms 7 Mar 2024 537th SwordF-Official 618 167 4ms 11 Aug 2025 538th oscargeerts 617 125 6ms 30 Jun 2025 539th Shanethegamer 🇺🇸 615 145 3,836ms 28 Oct 2024 540th mousetail 🇳🇱 614 157 145ms 9 Jun 2024 541st BambooleanLogic 🇸🇪 612 115 10ms 26 Oct 2022 542nd ZakkkkAttackkkk 🇵🇭 612 126 6ms 6 Sep 2023 543rd mtirado1 611 169 3ms 24 Dec 2022 543rd frosster 611 169 3ms 15 May 2023 545th thisishowmymindworks 🇳🇴 610 95 12ms 17 Aug 2020 546th Shanethegamer 🇺🇸 609 118 11ms 21 Apr 2023 547th Frowny 609 129 148ms 5 Dec 2018 548th emgordon154 609 225 1,699ms 24 Jun 2024 549th abailey2020 🇺🇸 609 241 8ms 18 Apr 2020 550th Natanaelel 🇸🇪 608 94 1,064ms 6 Aug 2023 551st marcin7Cd 607 168 114ms 8 Feb 2021 552nd lionbryce 607 170 4ms 8 Aug 2024 553rd rambox11 606 116 11ms 6 Dec 2019 553rd coreynash 606 116 11ms 19 Feb 2024 555th HumanoidCPU 605 92 368ms 17 Feb 2025 556th SirBogman 🇺🇸 603 363 18ms 23 Nov 2022 557th edsrzf 🇳🇿 602 95 1,065ms 11 Jul 2025 558th lynn 602 128 6ms 21 Mar 2022 559th PatrickStephansen 🇿🇦 601 117 11ms 8 Mar 2021 560th DialFrost 🇸🇬 601 177 460ms 19 Nov 2025 First Prev 481–560 of 1,615 Next Last