The Calendar hole will go live in approximately 8 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 641st janbehrens 🇩🇪 544 175 1,227ms 20 Nov 2022 641st aksyristos 544 175 385ms 30 Jan 2023 643rd dokutan 543 142 7ms 4 Apr 2025 644th akshatj27 🇦🇶 542 100 37ms 12 Dec 2022 645th TheAristos 541 107 11ms 23 Oct 2019 645th mathisfun271 541 107 10ms 16 Dec 2023 647th hyvyys 541 130 10ms 14 Sep 2020 648th Gaddy 🇫🇷 541 146 355ms 20 May 2022 648th annaproxy 541 146 351ms 22 Jun 2023 650th Heathcorp 🇦🇺 539 143 6ms 18 Feb 2022 650th snoozingnewt 🇨🇦 539 143 6ms 23 Sep 2023 650th neel11235813 539 143 6ms 5 Apr 2024 650th FortuiteMan 🇫🇷 539 143 6ms 10 Oct 2024 650th Lv0Sys 🇵🇱 539 143 6ms 1 Jun 2025 655th dokutan 538 114 865ms 30 Aug 2025 656th dokutan 536 108 26ms 9 Jul 2024 656th ahmetdemirag 🇨🇾 536 108 33ms 5 Mar 2025 656th RaBa21 🇭🇺 536 108 12ms 12 Jul 2025 659th Laksen 🇩🇰 536 241 27ms 8 Jul 2021 660th AlephSquirrel 535 144 6ms 12 Dec 2022 661st scpchicken 🇵🇼 534 79 8ms 1 Jan 2023 662nd jgbaldwinbrown 534 237 289ms 2 Jul 2021 663rd jerrandolph 532 238 333ms 23 Apr 2020 664th nullie 531 109 17ms 15 Jun 2022 664th Exaphis 531 109 13ms 11 Jul 2022 666th rvdnieuwendijk 🇳🇱 531 118 292ms 23 Jul 2020 667th rodigu 529 133 10ms 14 Jun 2021 667th snoozingnewt 🇨🇦 529 133 11ms 11 Oct 2025 669th MeWhenI 🇻🇦 529 195 4ms 31 Dec 2022 670th janbehrens 🇩🇪 528 110 848ms 10 Nov 2021 671st neihousaigaai 526 110 12ms 18 May 2021 671st logvp 526 110 136ms 8 Jan 2024 671st Bmrl7 526 110 12ms 21 Feb 2024 671st stertooy 🇧🇪 526 110 12ms 19 Jun 2024 671st Pyroan 526 110 10ms 12 Mar 2025 671st YAJUE114514 526 110 14ms 4 days ago 677th MeWhenI 🇻🇦 524 117 679ms 15 Sep 2025 678th scpchicken 🇵🇼 524 150 160ms 28 Feb 2023 679th MeWhenI 🇻🇦 523 111 343ms 14 Feb 2023 680th ChristophHornung 523 151 386ms 21 Nov 2021 681st MeWhenI 🇻🇦 523 177 5ms 11 Sep 2022 682nd daedals 522 111 12ms 24 Apr 2019 682nd amollberg 🇸🇪 522 111 11ms 18 Jan 2022 682nd commandblockguy 🇺🇸 522 111 12ms 1 Oct 2022 685th junkondo-jp 521 135 10ms 12 May 2024 686th tobeannouncd 521 151 125ms 5 Jan 2024 687th Shanethegamer 🇺🇸 520 196 49ms 4 Oct 2024 688th vezzick 517 112 16ms 8 Mar 2021 689th KatieLG 🇬🇧 517 113 31ms 10 Oct 2025 690th violeta-desantis 517 149 6ms 31 Aug 2023 691st revlayle 🇺🇸 516 153 339ms 28 Dec 2021 692nd GrayJoKing 🇦🇺 515 82 8ms 2 Apr 2023 693rd roguh 🇬🇹 515 108 552ms 22 Feb 2024 693rd dokutan 515 108 370ms 9 Jul 2024 695th myleopard 513 113 18ms 15 Oct 2021 695th CedricGebistorf 513 113 11ms 19 Feb 2022 695th betaveros 513 113 14ms 1 Jan 2023 695th scpchicken 🇵🇼 513 113 11ms 28 Feb 2023 695th janbehrens 🇩🇪 513 113 17ms 17 Jun 2023 695th fourth-bit 513 113 17ms 11 Nov 2024 701st commandblockguy 🇺🇸 511 109 626ms 1 Sep 2025 702nd retrohun 511 186 74ms 28 Dec 2022 703rd Salutations45 510 138 10ms 30 Dec 2024 704th hemphen 509 155 346ms 29 Aug 2022 705th mokymok 🇺🇸 508 114 18ms 11 Oct 2021 705th hiichbindermax 508 114 10ms 17 Sep 2024 707th aksyristos 507 152 7ms 30 Jan 2023 708th yzhs 🇩🇪 507 155 130ms 26 Jul 2021 709th Waffle3z 506 107 41ms 22 Jan 2021 709th KatieLG 🇬🇧 506 107 50ms 11 Apr 2022 711th KatieLG 🇬🇧 506 209 108ms 15 Jan 2023 712th Shanethegamer 🇺🇸 505 115 636ms 2 Jul 2021 713th Shanethegamer 🇺🇸 505 205 55ms 20 Oct 2024 714th giacomogallina 504 115 24ms 14 Jun 2019 714th cellobix 504 115 19ms 15 Aug 2019 714th dzhang314 504 115 17ms 15 Aug 2019 714th rollershutter 504 115 20ms 26 Nov 2023 714th 1231234md5 🇨🇳 504 115 20ms 25 Jan 2024 714th CutSandstone 504 115 14ms 5 Jul 2024 714th KasperKivimaeki 🇫🇮 504 115 14ms 7 Jul 2025 First Prev 641–720 of 1,615 Next Last