The Calendar hole will go live in approximately 12 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 880th rsgray 411 141 11ms 24 Jan 2024 880th itljan30 411 141 10ms 30 Jan 2025 883rd dsntzn 🇸🇰 411 171 10ms 2 Mar 2021 884th galloj 🇨🇿 409 120 13ms 17 Jan 2023 885th Kusarr 409 260 397ms 17 Dec 2020 886th inverseLorentz 🇦🇺 408 142 381ms 29 Apr 2024 886th hellwue 408 142 16ms 25 Jun 2024 886th Flekay 🇩🇪 408 142 18ms 10 Jul 2025 889th pyrolitic 🇮🇪 408 189 6ms 4 Apr 2022 890th connorslade 407 237 180ms 13 May 2022 891st SniperSmiley 🇺🇸 405 143 22ms 24 Jun 2022 891st MaxElf999 405 143 11ms 3 Oct 2022 891st SirFireball3521 405 143 11ms 4 Feb 2023 894th msbranicky 403 138 636ms 3 Oct 2024 895th c0d3-4-F00d 🇩🇪 403 191 6ms 21 Jan 2022 896th firegene 🇮🇪 402 144 11ms 24 Dec 2023 897th aliakseikalosha 401 197 369ms 18 Jul 2025 898th nooberitess 399 145 24ms 22 May 2025 899th guliyevemil1 🇦🇿 397 146 10ms 16 Apr 2020 899th trist224 🇫🇷 397 146 11ms 15 Sep 2022 899th Emutis 🇱🇹 397 146 11ms 9 Nov 2025 902nd alphafalfa 397 181 5ms 1 Aug 2025 903rd laserb 395 147 465ms 26 Jan 2020 904th AforAmpere 394 147 13ms 21 Feb 2021 904th Anonymousellama21 394 147 12ms 7 Mar 2024 906th MeWhenI 🇻🇦 392 189 7ms 1 Oct 2022 907th zdzc 391 148 11ms 25 Apr 2019 908th mikehanus 391 197 6ms 21 Nov 2023 909th postie77 391 202 344ms 14 Jun 2023 910th matanshavit 389 149 14ms 5 May 2020 910th aglahir1 389 149 19ms 20 Jul 2022 912th Starwort 🇬🇧 386 150 12ms 5 Apr 2019 912th ay2718 386 150 12ms 8 Aug 2019 912th jiaminglimjm 🇲🇾 386 150 12ms 9 Jan 2021 915th Pimentero 🇷🇺 386 186 5ms 17 Apr 2024 916th MeWhenI 🇻🇦 385 222 72ms 3 Nov 2023 917th ehulinsky 🇺🇸 384 151 400ms 10 Nov 2021 917th QuincyNash 🇺🇸 384 151 19ms 19 Jan 2022 917th mikehanus 384 151 35ms 21 Nov 2023 920th rjmholt 384 163 324ms 3 Jun 2020 921st KatieLG 🇬🇧 384 183 11ms 11 Jun 2024 922nd MeWhenI 🇻🇦 384 248 460ms 7 Dec 2022 923rd MeWhenI 🇻🇦 380 189 9ms 4 Nov 2022 924th scpchicken 🇵🇼 379 132 304ms 29 Mar 2022 925th hjcafaroUC 379 153 11ms 1 Aug 2020 925th AkashTandon167 379 153 255ms 20 Jan 2021 927th CaedenHarper 🇨🇦 377 282 493ms 10 Oct 2025 928th Stockoh 🇫🇷 376 154 28ms 31 Oct 2024 928th jameswmccarty 376 154 16ms 6 Mar 2025 930th tofuweasel 375 167 332ms 10 Jun 2022 931st jgbaldwinbrown 374 206 6ms 2 Jul 2021 932nd MeWhenI 🇻🇦 374 585 20ms 15 Nov 2023 933rd wobblybits 371 156 42ms 16 Aug 2025 934th boxjelly 370 287 390ms 3 Mar 2021 935th za3k 369 157 11ms 10 Oct 2022 936th fleischa 369 214 364ms 21 Nov 2021 937th TrixTrl 368 289 397ms 15 Nov 2021 938th MeWhenI 🇻🇦 366 169 237ms 22 May 2023 939th mothcolada 🇺🇸 364 159 13ms 15 Dec 2020 939th Andrey135296 364 159 21ms 24 Oct 2022 941st Eolu 364 292 409ms 23 Apr 2020 942nd jcdyer 362 266 179ms 4 Dec 2020 943rd xyangst 361 195 11ms 12 Oct 2024 944th befoster 360 161 11ms 8 May 2021 944th LeeCamp 360 161 29ms 10 Dec 2021 946th ian-h-chamberlain 🇺🇸 358 354 264ms 26 days ago 947th KadinSchultz 357 162 17ms 18 Dec 2023 947th islptng 357 162 22ms 30 Aug 2025 947th AidanWalter 357 162 19ms 22 days ago 950th ChrisTheisen 357 221 345ms 20 Dec 2022 951st CarraUjilen 356 176 343ms 5 Aug 2024 952nd aksyristos 355 163 16ms 20 Jan 2023 953rd Reyzartz 353 164 15ms 19 Sep 2020 954th jjatria 352 142 236ms 11 Jul 2020 955th RandGuy 351 165 28ms 4 May 2022 956th GWStuart 350 220 6ms 12 Jan 2023 957th Pena86 349 166 17ms 4 Jan 2022 957th WillowWispy 349 166 12ms 23 Mar 2025 959th MeWhenI 🇻🇦 349 221 6ms 21 Dec 2023 960th dokutan 348 167 2,145ms 7 Apr 2024 First Prev 881–960 of 1,616 Next Last