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) 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 Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab 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) 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 Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 479th MaxElf999 850 58 11ms 3 Oct 2022 479th Alex-x90 🇺🇸 850 58 31ms 23 Mar 2023 479th Natanaelel 🇸🇪 850 58 12ms 11 Apr 2023 479th InigoK 🇺🇸 850 58 32ms 28 May 2023 479th Kacarott 🇦🇺 850 58 36ms 13 Oct 2023 479th m42km 850 58 32ms 25 Nov 2023 479th NickTheEASDude 🇺🇸 850 58 31ms 1 Jul 2024 479th namelessiw 850 58 31ms 27 Jul 2024 479th croc54 850 58 30ms 9 Jan 2025 479th andrewjc2000 850 58 30ms 11 Mar 2025 479th wuduculfre 850 58 31ms 22 Jul 2025 479th robin-scragg 850 58 14ms 21 Oct 2025 493rd snoozingnewt 🇨🇦 849 44 111ms 9 Feb 2026 494th emgordon154 849 131 1,613ms 29 Nov 2024 495th jared-hughes 848 55 11ms 31 Jul 2022 495th emgordon154 848 55 13ms 4 Mar 2025 497th ovs-code 🇩🇪 848 81 458ms 15 Jun 2024 498th Shanethegamer 🇺🇸 847 77 82ms 9 Jun 2022 499th jared-hughes 847 84 58ms 31 Jul 2022 500th dokutan 845 47 5ms 18 Jul 2025 501st MeWhenI 🇻🇦 845 76 37ms 16 Jun 2022 502nd Shanethegamer 🇺🇸 844 50 36ms 22 Mar 2023 502nd MeWhenI 🇻🇦 844 50 38ms 22 Mar 2023 504th Steffan153 🇫🇮 844 63 2ms 23 Mar 2023 504th stefangimmillaro 844 63 2ms 18 Sep 2023 504th xsot 🇸🇬 844 63 2ms 6 May 2025 504th KasperKivimaeki 🇫🇮 844 63 2ms 14 Aug 2025 508th MeWhenI 🇻🇦 843 57 548ms 17 Jan 2024 508th SirBogman 🇺🇸 843 57 484ms 10 Jun 2024 508th CaedenHarper 🇨🇦 843 57 548ms 9 Dec 2025 511th DialFrost 🇸🇬 843 132 1,650ms 17 Jan 2026 512th btnlq 842 43 240ms 26 Jan 2021 512th primo-ppcg 🇹🇭 842 43 216ms 25 May 2021 514th primo-ppcg 🇹🇭 842 87 30ms 25 Jan 2023 515th acotis 842 90 136ms 3 Oct 2025 516th fuzzylojik-golf 🇺🇸 840 22 3ms 6 Sep 2025 517th primo-ppcg 🇹🇭 837 85 58ms 18 Jan 2022 517th 09cf 837 85 59ms 24 Sep 2023 519th GrayJoKing 🇦🇺 835 57 36ms 5 Sep 2024 520th marcin7Cd 835 59 12ms 16 Jan 2021 520th AlephSquirrel 835 59 12ms 13 May 2021 520th rschwa6308 🇺🇸 835 59 11ms 28 Jun 2021 520th NewDefectus 🇮🇱 835 59 13ms 25 Oct 2021 520th jacksonhenry3 835 59 13ms 21 Dec 2021 520th NicoAdams 835 59 13ms 21 Dec 2021 520th yzhs 🇩🇪 835 59 11ms 7 Jun 2022 520th aksyristos 835 59 16ms 28 Feb 2023 520th BREMAUCY 🇫🇷 835 59 11ms 27 Apr 2023 520th MarcMush 🇫🇷 835 59 11ms 12 Feb 2024 520th CommandLeo 🇮🇹 835 59 12ms 18 Jan 2026 520th pengu1n-master 835 59 12ms 10 Feb 2026 532nd sean-niemann 🇺🇸 834 77 41ms 18 Dec 2023 533rd MeWhenI 🇻🇦 833 56 11ms 8 Jun 2022 533rd Yewzir 🇧🇪 833 56 13ms 16 Nov 2023 533rd voytxt 🇨🇿 833 56 11ms 25 Jan 2025 533rd targrik 833 56 10ms 21 Feb 2025 537th primo-ppcg 🇹🇭 833 77 1,386ms 30 Nov 2021 538th kritixilithos 832 58 3ms 29 May 2024 539th inventshah 831 64 2ms 17 Nov 2022 539th DialFrost 🇸🇬 831 64 2ms 7 Nov 2025 541st sisyphus-ppcg 🇦🇺 830 60 148ms 25 Feb 2021 542nd Kacarott 🇦🇺 829 58 461ms 15 Jan 2024 542nd Natanaelel 🇸🇪 829 58 473ms 20 Jan 2024 542nd AlephSquirrel 829 58 411ms 21 Jan 2024 542nd namelessiw 829 58 509ms 15 Aug 2024 546th GrayJoKing 🇦🇺 829 65 4ms 9 Nov 2023 547th Irratix 🇳🇱 828 51 34ms 4 Mar 2022 548th Yewzir 🇧🇪 828 83 469ms 16 Nov 2023 549th Shanethegamer 🇺🇸 826 83 97ms 19 Apr 2022 550th MeWhenI 🇻🇦 826 104 333ms 8 Feb 2023 551st MeWhenI 🇻🇦 825 78 116ms 14 Oct 2022 552nd emgordon154 825 105 110ms 4 Dec 2025 553rd GrayJoKing 🇦🇺 824 81 120ms 14 Mar 2022 553rd MeWhenI 🇻🇦 824 81 120ms 15 Nov 2022 555th AGoyet 822 60 14ms 29 Jun 2022 555th betaveros 822 60 20ms 31 Dec 2022 555th AlexanderFair 822 60 11ms 23 Jun 2023 555th Andriamanitra 🇫🇮 822 60 13ms 20 Jul 2023 555th dranjohn 822 60 51ms 15 Sep 2023 555th inverseLorentz 🇦🇺 822 60 12ms 9 Apr 2024 First Prev 481–560 of 1,997 Next Last