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 879th itljan30 411 141 10ms 30 Jan 2025 882nd dsntzn 🇸🇰 411 171 10ms 2 Mar 2021 883rd galloj 🇨🇿 409 120 13ms 17 Jan 2023 884th Kusarr 409 260 397ms 17 Dec 2020 885th inverseLorentz 🇦🇺 408 142 381ms 29 Apr 2024 885th hellwue 408 142 16ms 25 Jun 2024 885th Flekay 🇩🇪 408 142 18ms 10 Jul 2025 888th pyrolitic 🇮🇪 408 189 6ms 4 Apr 2022 889th connorslade 407 237 180ms 13 May 2022 890th SniperSmiley 🇺🇸 405 143 22ms 24 Jun 2022 890th MaxElf999 405 143 11ms 3 Oct 2022 890th SirFireball3521 405 143 11ms 4 Feb 2023 893rd msbranicky 403 138 636ms 3 Oct 2024 894th c0d3-4-F00d 🇩🇪 403 191 6ms 21 Jan 2022 895th firegene 🇮🇪 402 144 11ms 24 Dec 2023 896th aliakseikalosha 401 197 369ms 18 Jul 2025 897th nooberitess 399 145 24ms 22 May 2025 898th guliyevemil1 🇦🇿 397 146 10ms 16 Apr 2020 898th trist224 🇫🇷 397 146 11ms 15 Sep 2022 898th Emutis 🇱🇹 397 146 11ms 9 Nov 2025 901st alphafalfa 397 181 5ms 1 Aug 2025 902nd laserb 395 147 465ms 26 Jan 2020 903rd AforAmpere 394 147 13ms 21 Feb 2021 903rd Anonymousellama21 394 147 12ms 7 Mar 2024 905th MeWhenI 🇻🇦 392 189 7ms 1 Oct 2022 906th zdzc 391 148 11ms 25 Apr 2019 907th mikehanus 391 197 6ms 21 Nov 2023 908th postie77 391 202 344ms 14 Jun 2023 909th matanshavit 389 149 14ms 5 May 2020 909th aglahir1 389 149 19ms 20 Jul 2022 911th Starwort 🇬🇧 386 150 12ms 5 Apr 2019 911th ay2718 386 150 12ms 8 Aug 2019 911th jiaminglimjm 🇲🇾 386 150 12ms 9 Jan 2021 914th Pimentero 🇷🇺 386 186 5ms 17 Apr 2024 915th MeWhenI 🇻🇦 385 222 72ms 3 Nov 2023 916th ehulinsky 🇺🇸 384 151 400ms 10 Nov 2021 916th QuincyNash 🇺🇸 384 151 19ms 19 Jan 2022 916th mikehanus 384 151 35ms 21 Nov 2023 919th rjmholt 384 163 324ms 3 Jun 2020 920th KatieLG 🇬🇧 384 183 11ms 11 Jun 2024 921st MeWhenI 🇻🇦 384 248 460ms 7 Dec 2022 922nd MeWhenI 🇻🇦 380 189 9ms 4 Nov 2022 923rd scpchicken 🇵🇼 379 132 304ms 29 Mar 2022 924th hjcafaroUC 379 153 11ms 1 Aug 2020 924th AkashTandon167 379 153 255ms 20 Jan 2021 926th CaedenHarper 🇨🇦 377 282 493ms 10 Oct 2025 927th Stockoh 🇫🇷 376 154 28ms 31 Oct 2024 927th jameswmccarty 376 154 16ms 6 Mar 2025 929th tofuweasel 375 167 332ms 10 Jun 2022 930th jgbaldwinbrown 374 206 6ms 2 Jul 2021 931st MeWhenI 🇻🇦 374 585 20ms 15 Nov 2023 932nd wobblybits 371 156 42ms 16 Aug 2025 933rd boxjelly 370 287 390ms 3 Mar 2021 934th za3k 369 157 11ms 10 Oct 2022 935th fleischa 369 214 364ms 21 Nov 2021 936th TrixTrl 368 289 397ms 15 Nov 2021 937th MeWhenI 🇻🇦 366 169 237ms 22 May 2023 938th mothcolada 🇺🇸 364 159 13ms 15 Dec 2020 938th Andrey135296 364 159 21ms 24 Oct 2022 940th Eolu 364 292 409ms 23 Apr 2020 941st jcdyer 362 266 179ms 4 Dec 2020 942nd xyangst 361 195 11ms 12 Oct 2024 943rd befoster 360 161 11ms 8 May 2021 943rd LeeCamp 360 161 29ms 10 Dec 2021 945th ian-h-chamberlain 🇺🇸 358 354 264ms 25 days ago 946th KadinSchultz 357 162 17ms 18 Dec 2023 946th islptng 357 162 22ms 30 Aug 2025 946th AidanWalter 357 162 19ms 21 days ago 949th ChrisTheisen 357 221 345ms 20 Dec 2022 950th CarraUjilen 356 176 343ms 5 Aug 2024 951st aksyristos 355 163 16ms 20 Jan 2023 952nd Reyzartz 353 164 15ms 19 Sep 2020 953rd jjatria 352 142 236ms 11 Jul 2020 954th RandGuy 351 165 28ms 4 May 2022 955th GWStuart 350 220 6ms 12 Jan 2023 956th Pena86 349 166 17ms 4 Jan 2022 956th WillowWispy 349 166 12ms 23 Mar 2025 958th MeWhenI 🇻🇦 349 221 6ms 21 Dec 2023 959th dokutan 348 167 2,145ms 7 Apr 2024 960th TaserTheFox 🇺🇸 347 167 19ms 1 May 2023 First Prev 881–960 of 1,615 Next Last