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 Calendar 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 Multitap Input 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 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 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar 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 Multitap Input 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 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 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 480th emgordon154 847 55 9ms 4 Mar 2025 482nd ovs-code 🇩🇪 847 81 461ms 15 Jun 2024 483rd jared-hughes 847 84 58ms 31 Jul 2022 484th emgordon154 847 131 1,613ms 29 Nov 2024 485th Shanethegamer 🇺🇸 845 77 81ms 9 Jun 2022 486th dokutan 843 47 5ms 18 Jul 2025 487th Shanethegamer 🇺🇸 843 50 39ms 22 Mar 2023 487th MeWhenI 🇻🇦 843 50 41ms 22 Mar 2023 489th MeWhenI 🇻🇦 843 57 458ms 17 Jan 2024 489th SirBogman 🇺🇸 843 57 423ms 10 Jun 2024 489th CaedenHarper 🇨🇦 843 57 381ms 9 Dec 2025 492nd Steffan153 🇫🇮 843 63 2ms 23 Mar 2023 492nd stefangimmillaro 843 63 2ms 18 Sep 2023 492nd xsot 🇸🇬 843 63 2ms 6 May 2025 492nd KasperKivimaeki 🇫🇮 843 63 2ms 14 Aug 2025 496th MeWhenI 🇻🇦 842 76 37ms 16 Jun 2022 497th btnlq 841 43 252ms 26 Jan 2021 497th primo-ppcg 🇹🇭 841 43 283ms 25 May 2021 499th primo-ppcg 🇹🇭 841 87 29ms 25 Jan 2023 500th DialFrost 🇸🇬 841 132 1,650ms 27 days ago 501st fuzzylojik-golf 🇺🇸 840 22 3ms 6 Sep 2025 502nd acotis 839 90 140ms 3 Oct 2025 503rd primo-ppcg 🇹🇭 837 85 53ms 18 Jan 2022 503rd 09cf 837 85 60ms 24 Sep 2023 505th marcin7Cd 835 59 10ms 16 Jan 2021 505th AlephSquirrel 835 59 11ms 13 May 2021 505th rschwa6308 🇺🇸 835 59 11ms 28 Jun 2021 505th NewDefectus 🇮🇱 835 59 12ms 25 Oct 2021 505th jacksonhenry3 835 59 13ms 21 Dec 2021 505th NicoAdams 835 59 12ms 21 Dec 2021 505th yzhs 🇩🇪 835 59 12ms 7 Jun 2022 505th aksyristos 835 59 11ms 28 Feb 2023 505th BREMAUCY 🇫🇷 835 59 11ms 27 Apr 2023 505th MarcMush 🇫🇷 835 59 11ms 12 Feb 2024 505th CommandLeo 🇮🇹 835 59 12ms 27 days ago 505th pengu1n-master 835 59 11ms 4 days ago 517th GrayJoKing 🇦🇺 833 57 36ms 5 Sep 2024 518th MeWhenI 🇻🇦 832 56 9ms 8 Jun 2022 518th Yewzir 🇧🇪 832 56 9ms 16 Nov 2023 518th voytxt 🇨🇿 832 56 12ms 25 Jan 2025 518th targrik 832 56 9ms 21 Feb 2025 522nd sean-niemann 🇺🇸 832 77 41ms 18 Dec 2023 523rd kritixilithos 831 58 3ms 29 May 2024 524th primo-ppcg 🇹🇭 831 77 1,449ms 30 Nov 2021 525th inventshah 830 64 2ms 17 Nov 2022 525th DialFrost 🇸🇬 830 64 2ms 7 Nov 2025 527th sisyphus-ppcg 🇦🇺 829 60 104ms 25 Feb 2021 528th Kacarott 🇦🇺 828 58 476ms 15 Jan 2024 528th Natanaelel 🇸🇪 828 58 456ms 20 Jan 2024 528th AlephSquirrel 828 58 467ms 21 Jan 2024 528th namelessiw 828 58 402ms 15 Aug 2024 532nd Irratix 🇳🇱 827 51 41ms 4 Mar 2022 533rd GrayJoKing 🇦🇺 827 65 4ms 9 Nov 2023 534th Yewzir 🇧🇪 826 83 489ms 16 Nov 2023 535th MeWhenI 🇻🇦 825 104 283ms 8 Feb 2023 536th MeWhenI 🇻🇦 824 78 109ms 14 Oct 2022 537th Shanethegamer 🇺🇸 823 83 83ms 19 Apr 2022 538th GrayJoKing 🇦🇺 822 81 120ms 14 Mar 2022 538th MeWhenI 🇻🇦 822 81 121ms 15 Nov 2022 540th AGoyet 821 60 13ms 29 Jun 2022 540th betaveros 821 60 21ms 31 Dec 2022 540th AlexanderFair 821 60 11ms 23 Jun 2023 540th Andriamanitra 🇫🇮 821 60 14ms 20 Jul 2023 540th dranjohn 821 60 50ms 15 Sep 2023 540th inverseLorentz 🇦🇺 821 60 11ms 9 Apr 2024 540th 051 🇸🇬 821 60 11ms 1 Aug 2024 540th vgamula 🇺🇦 821 60 33ms 28 Jul 2025 540th LuisGoncalves05 🇵🇹 821 60 11ms 29 Jul 2025 540th luuumine 🇫🇷 821 60 11ms 20 Oct 2025 540th solisolu 821 60 11ms 1 Jan 2026 551st emgordon154 821 105 109ms 4 Dec 2025 552nd NewDefectus 🇮🇱 818 57 10ms 1 Nov 2021 553rd prplz 🇦🇺 818 65 2ms 24 Jan 2021 553rd sisyphus-ppcg 🇦🇺 818 65 2ms 25 Jan 2021 553rd 09cf 818 65 2ms 24 Sep 2023 556th inventshah 817 59 2ms 18 May 2022 556th MeWhenI 🇻🇦 817 59 2ms 18 May 2022 558th m-tkach 🇺🇦 817 101 28ms 18 Jan 2024 559th MeWhenI 🇻🇦 816 29 60ms 25 Aug 2022 560th ovs-code 🇩🇪 816 52 144ms 4 Aug 2024 First Prev 481–560 of 1,900 Next Last