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 795th elgan65536 673 107 11ms 30 Mar 2024 795th BREMAUCY 🇫🇷 673 107 14ms 24 Apr 2024 795th Ythaenagor 673 107 9ms 5 Aug 2024 795th Emutis 🇱🇹 673 107 9ms 6 Aug 2025 795th wobblybits 673 107 14ms 16 Aug 2025 795th zgialor-lab 673 107 13ms 32 hours ago 807th frankgraziano 670 115 19ms 25 Feb 2025 808th elgan65536 670 180 163ms 4 Mar 2024 809th emgordon154 669 104 4ms 28 Dec 2024 810th Shanethegamer 🇺🇸 669 123 4,537ms 2 Nov 2024 811th abailey2020 🇺🇸 667 108 9ms 12 Dec 2020 811th ComputerKWasTaken 🇺🇸 667 108 10ms 15 Oct 2024 813th Shanethegamer 🇺🇸 667 202 26ms 9 Jul 2021 814th TimCurwick 🇺🇸 666 82 306ms 3 Dec 2020 814th Feniske 🇫🇷 666 82 265ms 7 Nov 2023 814th IISResetMe 666 82 311ms 8 Apr 2025 817th Ashikpaul 🇮🇳 666 87 9ms 29 Jul 2022 817th two-bad 🇬🇧 666 87 9ms 25 Feb 2024 819th MeWhenI 🇻🇦 664 113 99ms 8 Mar 2023 820th roavin 664 134 361ms 27 Jun 2022 821st CatsAreFluffy 663 50 50ms 21 Oct 2022 822nd Alex-x90 🇺🇸 662 113 1ms 7 Mar 2023 822nd Yewzir 🇧🇪 662 113 6ms 27 Jan 2024 824th sean-niemann 🇺🇸 662 134 38ms 19 Nov 2024 825th Shanethegamer 🇺🇸 661 53 241ms 9 May 2021 826th argusdusty 🇺🇸 661 109 9ms 31 Dec 2020 826th fynnkroeger 661 109 34ms 8 Feb 2021 826th Starwort 🇬🇧 661 109 10ms 5 Mar 2021 826th enbyte 661 109 9ms 7 Jun 2021 826th jakobkordez 🇸🇮 661 109 9ms 10 Nov 2022 826th b10011 🇫🇮 661 109 14ms 8 Jan 2023 826th GulgDev 661 109 14ms 21 Mar 2023 826th Bmrl7 661 109 10ms 6 Jul 2024 826th swtchblade 661 109 9ms 23 Jul 2025 835th KatieLG 🇬🇧 660 99 355ms 15 Jan 2024 835th m42km 660 99 365ms 4 Feb 2024 835th Kacarott 🇦🇺 660 99 376ms 10 Sep 2024 838th ashtraypettingzoo 🇺🇸 657 48 2ms 5 Apr 2023 839th Ralac07 🇦🇺 656 76 36ms 4 Jul 2024 840th boxjelly 655 110 14ms 12 Feb 2021 840th cesarm4 655 110 12ms 31 Aug 2021 840th Kloppermand 🇩🇰 655 110 14ms 28 Sep 2021 840th LeeCamp 655 110 10ms 15 Feb 2022 840th za3k 655 110 9ms 12 Oct 2022 840th lzahray 655 110 11ms 25 Oct 2022 840th Re-Adventures 🇮🇳 655 110 9ms 4 Jan 2023 840th luuumine 🇫🇷 655 110 10ms 17 days ago 848th dizzyliam 655 126 116ms 27 Oct 2021 849th jacobly0 🇺🇸 655 229 1,708ms 22 Apr 2024 850th stefangimmillaro 654 136 388ms 15 Jun 2025 851st stefangimmillaro 654 159 455ms 6 Oct 2025 852nd Yewzir 🇧🇪 654 183 279ms 25 Oct 2023 853rd btjones0 653 118 14ms 5 Jan 2021 854th RDShah 651 89 9ms 6 Jan 2022 854th akshatj27 🇦🇶 651 89 9ms 11 Jan 2022 856th MeWhenI 🇻🇦 651 163 43ms 20 May 2023 857th MeWhenI 🇻🇦 651 184 274ms 9 Feb 2023 858th NewDefectus 🇮🇱 650 51 49ms 6 Sep 2021 859th RocketRammer 🇬🇧 650 84 257ms 14 Jul 2023 860th johnnythedoggie 649 111 10ms 29 Apr 2021 860th blamegames 649 111 10ms 16 May 2021 860th fgrosshans 🇫🇷 649 111 10ms 7 May 2023 860th rollershutter 649 111 10ms 11 Jul 2023 860th wk1093 649 111 9ms 18 Nov 2023 860th SoliGhost 649 111 9ms 10 Jun 2025 866th Yewzir 🇧🇪 648 156 678ms 9 Feb 2024 867th btjones0 648 186 160ms 5 Jan 2021 868th jared-hughes 647 119 14ms 17 Jul 2022 869th Kaffeleif 645 116 6ms 5 Jan 2024 870th SwordF-Official 644 49 3ms 20 Jun 2025 871st vezzick 643 112 10ms 4 Mar 2021 871st guilhem-roy 🇫🇷 643 112 11ms 28 Feb 2022 871st celiendonze 🇨🇭 643 112 9ms 18 Jul 2023 871st CutSandstone 643 112 11ms 4 Jul 2024 871st codingisgreatbutiamnot 643 112 10ms 7 Aug 2024 871st Upload-and-View 🇺🇦 643 112 9ms 21 Aug 2025 871st qpwoeirut 643 112 11ms 4 Sep 2025 878th klixel 🇨🇦 642 188 165ms 6 Nov 2024 879th msbranicky 641 102 410ms 17 Jan 2024 879th Yewzir 🇧🇪 641 102 350ms 5 Feb 2024 First Prev 801–880 of 2,035 Next Last