Kolakoski Sequence 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 NFA Simulator 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 NFA Simulator 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 526th MeWhenI 🇻🇦 825 104 265ms 8 Feb 2023 527th MeWhenI 🇻🇦 824 78 100ms 14 Oct 2022 528th Shanethegamer 🇺🇸 823 83 82ms 19 Apr 2022 529th GrayJoKing 🇦🇺 822 81 115ms 14 Mar 2022 529th MeWhenI 🇻🇦 822 81 114ms 15 Nov 2022 531st AGoyet 821 60 13ms 29 Jun 2022 531st betaveros 821 60 18ms 31 Dec 2022 531st AlexanderFair 821 60 11ms 23 Jun 2023 531st Andriamanitra 🇫🇮 821 60 12ms 20 Jul 2023 531st dranjohn 821 60 51ms 15 Sep 2023 531st inverseLorentz 🇦🇺 821 60 10ms 9 Apr 2024 531st 051 🇸🇬 821 60 12ms 1 Aug 2024 531st KasperKivimaeki 🇫🇮 821 60 11ms 30 Jun 2025 531st vgamula 🇺🇦 821 60 30ms 28 Jul 2025 531st LuisGoncalves05 🇵🇹 821 60 10ms 29 Jul 2025 531st luuumine 🇫🇷 821 60 12ms 20 Oct 2025 542nd NewDefectus 🇮🇱 818 57 9ms 1 Nov 2021 543rd inventshah 817 59 2ms 18 May 2022 543rd MeWhenI 🇻🇦 817 59 2ms 18 May 2022 545th m-tkach 🇺🇦 817 101 29ms 18 Jan 2024 546th MeWhenI 🇻🇦 816 29 50ms 25 Aug 2022 547th ovs-code 🇩🇪 816 52 135ms 4 Aug 2024 548th prplz 🇦🇺 816 65 2ms 24 Jan 2021 548th sisyphus-ppcg 🇦🇺 816 65 2ms 25 Jan 2021 548th 09cf 816 65 2ms 24 Sep 2023 551st GrayJoKing 🇦🇺 816 84 462ms 28 Feb 2022 552nd MeWhenI 🇻🇦 815 27 39ms 16 Mar 2022 553rd Yewzir 🇧🇪 815 61 105ms 16 Nov 2023 554th ovs-code 🇩🇪 815 66 2ms 10 Oct 2023 554th inventshah 815 66 2ms 22 Oct 2023 556th BREMAUCY 🇫🇷 814 59 450ms 20 Feb 2024 557th duckyluuk 🇳🇱 812 70 2,887ms 28 Oct 2024 558th janlelis 810 52 52ms 18 Jan 2021 558th hiddicop 🇸🇪 810 52 43ms 29 Jan 2021 558th prplz 🇦🇺 810 52 38ms 22 Apr 2021 558th anter69 🇭🇺 810 52 41ms 14 Jan 2022 558th OhmNomNom 810 52 84ms 12 Oct 2022 558th DialFrost 🇸🇬 810 52 51ms 2 Feb 2023 558th olleicua 🇺🇸 810 52 37ms 25 Feb 2024 558th emgordon154 810 52 42ms 26 Nov 2024 566th Steffan153 🇫🇮 810 79 1,361ms 23 Mar 2023 566th Yewzir 🇧🇪 810 79 40ms 16 Nov 2023 568th petroselo 808 61 10ms 16 Nov 2021 568th cubed-guy 808 61 10ms 12 Feb 2022 568th CedricGebistorf 808 61 10ms 18 Feb 2022 568th jascotm 808 61 12ms 17 May 2022 568th Eilonlif 🇮🇱 808 61 34ms 9 Sep 2022 568th vishwathg 808 61 20ms 18 Sep 2022 568th jtaxen 808 61 10ms 26 Mar 2024 568th ahmetdemirag 🇨🇾 808 61 19ms 5 Nov 2024 568th Pyroan 808 61 14ms 16 Mar 2025 577th GolfingSuccess 🇬🇷 808 81 11ms 9 Sep 2022 578th Yewzir 🇧🇪 808 88 52ms 14 Oct 2023 578th KasperKivimaeki 🇫🇮 808 88 61ms 7 days ago 580th primo-ppcg 🇹🇭 806 78 72ms 13 Oct 2023 581st m-tkach 🇺🇦 806 106 38ms 25 Apr 2022 582nd primo-ppcg 🇹🇭 804 66 3ms 18 Jan 2021 582nd jared-hughes 804 66 3ms 31 Jul 2022 584th Dazza314 🇬🇧 803 23 6ms 16 Apr 2021 585th ArmaanAS 803 58 9ms 4 Apr 2021 585th itsh01 803 58 10ms 18 Nov 2021 587th Steffan153 🇫🇮 803 60 2ms 6 May 2023 588th stefangimmillaro 803 80 97ms 23 Sep 2023 589th emgordon154 803 85 7ms 3 Jan 2025 590th Shanethegamer 🇺🇸 803 94 119ms 25 Jan 2021 591st prplz 🇦🇺 802 83 119ms 10 Jul 2024 592nd DaDerpDuck 801 76 2ms 20 Jan 2021 593rd GolfingSuccess 🇬🇷 800 69 7ms 24 Dec 2024 594th MeWhenI 🇻🇦 799 50 3ms 11 Nov 2022 595th m-tkach 🇺🇦 799 89 52ms 25 Apr 2022 595th MeWhenI 🇻🇦 799 89 51ms 8 May 2022 597th MeWhenI 🇻🇦 797 57 700ms 15 Sep 2025 598th tobeannouncd 796 82 146ms 8 Jan 2024 599th SirBogman 🇺🇸 795 53 37ms 10 Jun 2024 600th cooljoseph1 795 62 23ms 6 May 2022 First Prev 526–600 of 1,859 Next Last