The Calendar hole will go live in approximately 9 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 481st CLOStrophobic 🇮🇹 812 123 7ms 22 Feb 2025 482nd boxjelly 810 94 116ms 7 Jan 2021 483rd stefangimmillaro 809 89 15ms 15 May 2022 483rd jipsong 🇩🇪 809 89 14ms 21 Jul 2024 483rd croc54 809 89 10ms 28 Nov 2024 483rd snoozingnewt 🇨🇦 809 89 14ms 16 Oct 2025 487th ovs-code 🇩🇪 807 69 12ms 19 Aug 2024 487th weeble 807 69 8ms 1 Jul 2025 489th fuzzylojik-golf 🇺🇸 807 81 373ms 2 Jul 2025 490th MeWhenI 🇻🇦 806 110 2ms 10 Oct 2023 491st Irratix 🇳🇱 805 62 37ms 4 Mar 2022 492nd nwellnhof 🇩🇪 804 93 1ms 20 Dec 2020 492nd NewDefectus 🇮🇱 804 93 2ms 8 May 2021 494th ovs-code 🇩🇪 803 95 13ms 30 Jun 2024 495th duckyluuk 🇳🇱 803 119 2ms 18 Jul 2024 495th FlyingPenguin223 803 119 2ms 18 Nov 2024 497th perlebach 🇨🇿 802 45 3ms 18 Aug 2021 497th JRaspass 🇬🇧 802 45 3ms 1 Sep 2021 499th snoozingnewt 🇨🇦 802 66 110ms 19 Oct 2025 500th primo-ppcg 🇹🇭 802 103 122ms 6 Aug 2024 501st Yax42 🇫🇷 802 111 389ms 15 Jun 2025 502nd nullie 800 90 15ms 9 Jun 2022 502nd DialFrost 🇸🇬 800 90 14ms 19 Jan 2024 502nd FortuiteMan 🇫🇷 800 90 16ms 14 Jul 2025 502nd jacekwladzinski 800 90 14ms 4 Oct 2025 506th perlebach 🇨🇿 799 103 3,685ms 10 Jun 2025 507th DialFrost 🇸🇬 797 82 365ms 22 Jan 2024 507th sean-niemann 🇺🇸 797 82 352ms 2 Jul 2025 509th jared-hughes 797 195 10ms 7 Jul 2024 510th stackofbears 796 47 32ms 25 Mar 2024 511th primo-ppcg 🇹🇭 796 75 2ms 13 Nov 2022 511th clockworknazo 796 75 9ms 14 Nov 2022 513th inventshah 796 94 1ms 24 Jan 2023 514th sisyphus-ppcg 🇦🇺 796 120 2ms 8 Apr 2022 515th ovs-code 🇩🇪 795 94 6ms 11 Dec 2023 516th galloj 🇨🇿 794 62 11ms 10 Sep 2022 516th kritixilithos 794 62 12ms 27 May 2024 518th elisherer 🇮🇱 793 73 9ms 2 Jan 2021 518th dylanarmstrong 793 73 9ms 22 Jan 2024 520th olleicua 🇺🇸 792 63 34ms 23 Mar 2024 521st primo-ppcg 🇹🇭 792 134 40ms 4 Jan 2024 522nd GolfingSuccess 🇬🇷 791 91 11ms 26 Nov 2021 522nd fourth-bit 791 91 15ms 12 Nov 2022 522nd mathisfun271 791 91 15ms 13 Feb 2024 522nd duckyluuk 🇳🇱 791 91 17ms 17 Jul 2024 526th MeWhenI 🇻🇦 791 93 1,180ms 2 Oct 2022 527th emplv 🇱🇻 789 64 130ms 29 Oct 2024 528th pardouin 🇫🇷 788 83 354ms 23 Jun 2024 528th duckyluuk 🇳🇱 788 83 359ms 17 Jul 2024 528th emgordon154 788 83 390ms 19 Apr 2025 531st ovs-code 🇩🇪 788 113 314ms 24 Aug 2023 532nd MeWhenI 🇻🇦 788 132 515ms 7 Nov 2025 533rd jipsong 🇩🇪 785 97 116ms 12 Jul 2024 534th lynn 785 108 107ms 18 May 2021 535th 77Tigers 783 92 10ms 19 Feb 2021 535th Irratix 🇳🇱 783 92 14ms 25 Apr 2022 535th smartiel 783 92 10ms 18 Sep 2022 535th alexeldridge 783 92 10ms 10 Aug 2024 539th jipsong 🇩🇪 783 153 263ms 13 Jun 2024 540th lynn 780 48 33ms 19 Apr 2021 541st Marin-Kitagawa 780 64 37ms 18 Jul 2021 541st ndren 780 64 39ms 29 Aug 2023 543rd AlephSquirrel 780 128 5ms 21 Jan 2025 544th SirBogman 🇺🇸 780 136 39ms 19 Oct 2023 545th DialFrost 🇸🇬 778 36 42ms 1 Feb 2023 545th ndren 778 36 53ms 7 Aug 2023 545th snoozingnewt 🇨🇦 778 36 55ms 18 Sep 2023 545th TheCatGuy12321 778 36 42ms 26 Aug 2024 549th ovs-code 🇩🇪 778 84 407ms 29 Apr 2024 550th Yewzir 🇧🇪 778 114 2ms 17 Oct 2023 551st annaproxy 777 98 114ms 28 Jan 2022 552nd jm600 774 93 10ms 17 Apr 2022 552nd MeWhenI 🇻🇦 774 93 19ms 25 Aug 2023 552nd Kacarott 🇦🇺 774 93 14ms 26 Sep 2023 552nd minhtrancccp 774 93 19ms 11 Jan 2024 556th stefangimmillaro 773 97 104ms 2 Jun 2023 557th gifti258 773 102 70ms 18 Sep 2023 558th emgordon154 773 130 94ms 18 days ago 559th GrayJoKing 🇦🇺 773 139 2ms 23 Mar 2021 560th MarcMush 🇫🇷 771 83 703ms 3 Jan 2024 First Prev 481–560 of 2,037 Next Last