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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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) Taxicab Numbers 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 APL 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 ><> ALGOL 68 ArkScript 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 APL 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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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) Taxicab Numbers 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 500th emgordon154 848 55 10ms 4 Mar 2025 502nd ovs-code 🇩🇪 848 81 458ms 15 Jun 2024 503rd jared-hughes 847 84 59ms 31 Jul 2022 504th Yewzir 🇧🇪 847 134 1,650ms 11 days ago 505th dokutan 845 47 5ms 18 Jul 2025 506th Shanethegamer 🇺🇸 845 50 40ms 22 Mar 2023 506th MeWhenI 🇻🇦 845 50 39ms 22 Mar 2023 508th Steffan153 🇫🇮 844 63 2ms 23 Mar 2023 508th stefangimmillaro 844 63 2ms 18 Sep 2023 508th xsot 🇸🇬 844 63 2ms 6 May 2025 508th KasperKivimaeki 🇫🇮 844 63 2ms 14 Aug 2025 512th btnlq 842 43 262ms 26 Jan 2021 512th primo-ppcg 🇹🇭 842 43 255ms 25 May 2021 514th MeWhenI 🇻🇦 842 76 37ms 16 Jun 2022 515th primo-ppcg 🇹🇭 842 87 30ms 25 Jan 2023 516th m-tkach 🇺🇦 841 55 388ms 20 Jan 2024 516th neel11235813 841 55 463ms 29 Mar 2024 518th sisyphus-ppcg 🇦🇺 841 89 121ms 25 Jan 2021 518th Bubbler-4 841 89 120ms 1 Jul 2021 520th fuzzylojik-golf 🇺🇸 840 22 3ms 6 Sep 2025 521st emgordon154 839 78 76ms 18 days ago 522nd primo-ppcg 🇹🇭 837 85 59ms 18 Jan 2022 522nd 09cf 837 85 66ms 24 Sep 2023 524th marcin7Cd 836 59 12ms 16 Jan 2021 524th AlephSquirrel 836 59 12ms 13 May 2021 524th rschwa6308 🇺🇸 836 59 11ms 28 Jun 2021 524th NewDefectus 🇮🇱 836 59 13ms 25 Oct 2021 524th jacksonhenry3 836 59 13ms 21 Dec 2021 524th NicoAdams 836 59 13ms 21 Dec 2021 524th yzhs 🇩🇪 836 59 11ms 7 Jun 2022 524th aksyristos 836 59 16ms 28 Feb 2023 524th BREMAUCY 🇫🇷 836 59 11ms 27 Apr 2023 524th MarcMush 🇫🇷 836 59 11ms 12 Feb 2024 524th CommandLeo 🇮🇹 836 59 12ms 18 Jan 2026 524th pengu1n-master 836 59 12ms 10 Feb 2026 524th retrohun 836 59 11ms 19 days ago 537th MeWhenI 🇻🇦 833 56 11ms 8 Jun 2022 537th Yewzir 🇧🇪 833 56 10ms 16 Nov 2023 537th voytxt 🇨🇿 833 56 10ms 25 Jan 2025 537th targrik 833 56 10ms 21 Feb 2025 541st kritixilithos 832 58 3ms 29 May 2024 542nd sean-niemann 🇺🇸 832 77 41ms 18 Dec 2023 543rd acotis 832 90 130ms 3 Oct 2025 544th inventshah 831 64 2ms 17 Nov 2022 544th DialFrost 🇸🇬 831 64 2ms 7 Nov 2025 546th primo-ppcg 🇹🇭 831 77 1,534ms 30 Nov 2021 547th sisyphus-ppcg 🇦🇺 830 60 148ms 25 Feb 2021 548th GrayJoKing 🇦🇺 829 65 3ms 9 Nov 2023 549th Irratix 🇳🇱 828 51 39ms 4 Mar 2022 550th Yewzir 🇧🇪 828 83 469ms 16 Nov 2023 551st emgordon154 828 137 1,675ms 15 days ago 552nd Shanethegamer 🇺🇸 826 83 100ms 19 Apr 2022 553rd MeWhenI 🇻🇦 826 104 333ms 8 Feb 2023 554th MeWhenI 🇻🇦 825 78 112ms 14 Oct 2022 555th GrayJoKing 🇦🇺 825 81 126ms 14 Mar 2022 555th MeWhenI 🇻🇦 825 81 130ms 15 Nov 2022 557th AGoyet 822 60 14ms 29 Jun 2022 557th betaveros 822 60 20ms 31 Dec 2022 557th AlexanderFair 822 60 11ms 23 Jun 2023 557th Andriamanitra 🇫🇮 822 60 13ms 20 Jul 2023 557th dranjohn 822 60 51ms 15 Sep 2023 557th inverseLorentz 🇦🇺 822 60 12ms 9 Apr 2024 557th 051 🇸🇬 822 60 12ms 1 Aug 2024 557th vgamula 🇺🇦 822 60 33ms 28 Jul 2025 557th LuisGoncalves05 🇵🇹 822 60 11ms 29 Jul 2025 557th luuumine 🇫🇷 822 60 11ms 20 Oct 2025 557th solisolu 822 60 11ms 1 Jan 2026 568th Steffan153 🇫🇮 822 110 6ms 14 days ago 569th GrayJoKing 🇦🇺 821 57 36ms 5 Sep 2024 570th m-tkach 🇺🇦 819 101 29ms 18 Jan 2024 571st MeWhenI 🇻🇦 818 29 55ms 25 Aug 2022 572nd NewDefectus 🇮🇱 818 57 11ms 1 Nov 2021 573rd inventshah 818 59 2ms 18 May 2022 573rd MeWhenI 🇻🇦 818 59 2ms 18 May 2022 575th prplz 🇦🇺 818 65 2ms 24 Jan 2021 575th sisyphus-ppcg 🇦🇺 818 65 2ms 25 Jan 2021 575th 09cf 818 65 2ms 24 Sep 2023 578th GrayJoKing 🇦🇺 818 84 466ms 28 Feb 2022 579th ovs-code 🇩🇪 817 52 136ms 4 Aug 2024 580th MeWhenI 🇻🇦 816 27 33ms 16 Mar 2022 581st Yewzir 🇧🇪 816 61 148ms 16 Nov 2023 582nd ovs-code 🇩🇪 816 66 2ms 10 Oct 2023 582nd inventshah 816 66 2ms 22 Oct 2023 584th duckyluuk 🇳🇱 816 70 2,403ms 28 Oct 2024 584th jkelly467 816 70 2,296ms 22 Dec 2025 586th janlelis 812 52 42ms 18 Jan 2021 586th hiddicop 🇸🇪 812 52 42ms 29 Jan 2021 586th prplz 🇦🇺 812 52 40ms 22 Apr 2021 586th anter69 🇭🇺 812 52 40ms 14 Jan 2022 586th OhmNomNom 812 52 83ms 12 Oct 2022 586th DialFrost 🇸🇬 812 52 42ms 2 Feb 2023 586th olleicua 🇺🇸 812 52 39ms 25 Feb 2024 586th emgordon154 812 52 43ms 26 Nov 2024 594th MeWhenI 🇻🇦 812 57 548ms 17 Jan 2024 594th SirBogman 🇺🇸 812 57 484ms 10 Jun 2024 594th CaedenHarper 🇨🇦 812 57 548ms 9 Dec 2025 597th GolfingSuccess 🇬🇷 812 81 9ms 9 Sep 2022 598th FortuiteMan 🇫🇷 812 82 13ms 16 Jan 2026 599th m-tkach 🇺🇦 812 106 25ms 25 Apr 2022 600th Yewzir 🇧🇪 810 79 37ms 16 Nov 2023 First Prev 501–600 of 2,011 Next Last