The Calendar hole will go live in approximately 13 days. Why not try and solve it ahead of time?
Look and Say in all languages in bytes. 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 Bytes Time Submitted 640th janbehrens 🇩🇪 735 98 16ms 17 Jun 2023 640th ahmetdemirag 🇨🇾 735 98 10ms 7 Oct 2024 640th albanian-laundromat 735 98 13ms 3 Jul 2025 644th Shanethegamer 🇺🇸 735 130 2ms 26 May 2023 645th emplv 🇱🇻 735 163 268ms 16 Dec 2020 646th 4hg 🇺🇸 734 68 39ms 17 Oct 2022 647th Protothor 733 79 9ms 22 Jul 2025 648th SmileTheory 733 102 1ms 7 Jan 2021 649th Shanethegamer 🇺🇸 732 206 506ms 25 Jan 2025 650th Shanethegamer 🇺🇸 731 113 121ms 21 Jun 2024 651st snoozingnewt 🇨🇦 728 113 4,020ms 27 Sep 2025 652nd ScottHamper 728 143 444ms 17 days ago 653rd ludwig-n 727 99 10ms 5 Apr 2021 653rd gilufin 727 99 12ms 21 Jun 2021 653rd schachmattmatt 727 99 12ms 11 Aug 2021 653rd KatieLG 🇬🇧 727 99 10ms 8 Jun 2022 653rd jhpaques 🇫🇷 727 99 10ms 29 Jul 2022 653rd aksyristos 727 99 10ms 6 Feb 2023 653rd TaserTheFox 🇺🇸 727 99 10ms 8 May 2023 653rd suwat513 727 99 11ms 19 Jun 2023 653rd quimey 727 99 15ms 26 Jun 2023 653rd htareque 727 99 10ms 18 Nov 2023 653rd SB-945 727 99 11ms 23 Feb 2024 653rd RobertHoeh 727 99 11ms 2 Dec 2024 653rd andrewjc2000 727 99 10ms 28 Feb 2025 653rd plcc0 727 99 10ms 18 Mar 2025 653rd cefqrn 727 99 10ms 10 Jul 2025 668th not-optikk 🇺🇸 724 132 2ms 1 Dec 2020 669th revlayle 🇺🇸 723 123 342ms 21 Nov 2021 670th iczelia 🇩🇪 722 50 3ms 19 Oct 2025 671st pschmid0 🇺🇸 722 97 4ms 1 Oct 2022 672nd OllieBoyne 🇬🇧 720 100 9ms 17 Sep 2021 672nd face0xff 720 100 14ms 19 Oct 2021 672nd pascscha 720 100 14ms 28 Mar 2022 672nd osmith93 720 100 11ms 28 Jun 2022 672nd fredrik-bakke 🇳🇴 720 100 10ms 5 Oct 2022 672nd tri1212 🇻🇳 720 100 10ms 28 Oct 2023 672nd AtengChen 720 100 13ms 31 Aug 2024 672nd moustave 720 100 14ms 19 Nov 2024 672nd TheZwierzLF 🇵🇱 720 100 10ms 25 May 2025 672nd jtaxen 720 100 11ms 15 Oct 2025 682nd SirBogman 🇺🇸 718 39 52ms 12 Sep 2022 683rd GolfingSuccess 🇬🇷 718 91 351ms 15 Jan 2024 684th JRaspass 🇬🇧 715 49 135ms 4 Dec 2020 685th jakzo 715 81 9ms 5 Sep 2021 686th ehulinsky 🇺🇸 713 101 11ms 10 Nov 2021 686th commandblockguy 🇺🇸 713 101 14ms 17 Nov 2023 686th hellwue 713 101 11ms 21 Jun 2024 686th hiichbindermax 713 101 10ms 21 Jun 2024 686th souta-1326 713 101 15ms 1 Apr 2025 691st MeWhenI 🇻🇦 711 92 360ms 24 May 2024 692nd HallMatthew314 711 107 120ms 18 Jan 2022 692nd JoaoFelipe3 711 107 118ms 14 Jan 2024 694th stefangimmillaro 709 170 126ms 4 Jun 2025 695th albanian-laundromat 708 114 71ms 15 Nov 2025 696th pzagrebin 706 47 48ms 7 Jul 2022 697th stefangabos 🇷🇴 706 82 8ms 7 Jun 2023 697th sebipopa 🇷🇴 706 82 9ms 8 Jun 2023 697th junkondo-jp 706 82 9ms 28 May 2024 700th AkashTandon167 706 102 11ms 2 Dec 2020 700th abba23 706 102 10ms 13 Jun 2021 700th olavaga 706 102 10ms 15 Aug 2021 700th Anonymousellama21 706 102 14ms 15 Jun 2022 700th Mikey-Beep 🇬🇧 706 102 12ms 17 Jun 2022 700th bob-th 706 102 10ms 6 Aug 2022 700th grave367 706 102 11ms 5 Mar 2023 700th msbranicky 706 102 12ms 10 Aug 2023 700th m42km 706 102 13ms 25 Nov 2023 700th eddvrs 706 102 10ms 22 Dec 2023 700th sultan 706 102 10ms 5 Mar 2024 700th Languag3 706 102 9ms 9 Oct 2024 700th KasperKivimaeki 🇫🇮 706 102 10ms 10 Jul 2025 713th KasperKivimaeki 🇫🇮 706 106 2ms 10 Nov 2025 714th Yewzir 🇧🇪 706 135 102ms 28 Mar 2024 715th olivermrose 🇺🇸 705 108 138ms 31 Aug 2021 716th stefangimmillaro 704 170 270ms 11 Oct 2023 717th marcin7Cd 703 142 19ms 8 Feb 2021 718th Shanethegamer 🇺🇸 703 162 43ms 10 Sep 2024 719th MeWhenI 🇻🇦 702 72 140ms 3 Aug 2024 720th stefangimmillaro 702 151 41ms 19 Oct 2023 First Prev 641–720 of 2,035 Next Last