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 481st Espiobest 850 58 11ms 13 Mar 2021 481st fgrosshans 🇫🇷 850 58 13ms 18 Jul 2022 481st MaxElf999 850 58 11ms 3 Oct 2022 481st Alex-x90 🇺🇸 850 58 31ms 23 Mar 2023 481st Natanaelel 🇸🇪 850 58 12ms 11 Apr 2023 481st InigoK 🇺🇸 850 58 32ms 28 May 2023 481st Kacarott 🇦🇺 850 58 36ms 13 Oct 2023 481st m42km 850 58 32ms 25 Nov 2023 481st NickTheEASDude 🇺🇸 850 58 31ms 1 Jul 2024 481st namelessiw 850 58 31ms 27 Jul 2024 481st croc54 850 58 30ms 9 Jan 2025 481st andrewjc2000 850 58 30ms 11 Mar 2025 481st wuduculfre 850 58 31ms 22 Jul 2025 481st robin-scragg 850 58 14ms 21 Oct 2025 495th Shanethegamer 🇺🇸 850 77 82ms 9 Jun 2022 496th snoozingnewt 🇨🇦 849 44 111ms 9 Feb 2026 497th emgordon154 849 131 1,613ms 29 Nov 2024 498th jared-hughes 848 55 11ms 31 Jul 2022 498th emgordon154 848 55 13ms 4 Mar 2025 500th ovs-code 🇩🇪 848 81 458ms 15 Jun 2024 501st jared-hughes 847 84 58ms 31 Jul 2022 502nd dokutan 845 47 5ms 18 Jul 2025 503rd Shanethegamer 🇺🇸 845 50 36ms 22 Mar 2023 503rd MeWhenI 🇻🇦 845 50 38ms 22 Mar 2023 505th MeWhenI 🇻🇦 845 76 37ms 16 Jun 2022 506th MeWhenI 🇻🇦 844 57 548ms 17 Jan 2024 506th SirBogman 🇺🇸 844 57 484ms 10 Jun 2024 506th CaedenHarper 🇨🇦 844 57 548ms 9 Dec 2025 506th flekAI 844 57 415ms 106 mins ago 510th Steffan153 🇫🇮 844 63 2ms 23 Mar 2023 510th stefangimmillaro 844 63 2ms 18 Sep 2023 510th xsot 🇸🇬 844 63 2ms 6 May 2025 510th KasperKivimaeki 🇫🇮 844 63 2ms 14 Aug 2025 514th DialFrost 🇸🇬 843 132 1,650ms 17 Jan 2026 515th btnlq 842 43 240ms 26 Jan 2021 515th primo-ppcg 🇹🇭 842 43 216ms 25 May 2021 517th primo-ppcg 🇹🇭 842 87 30ms 25 Jan 2023 518th acotis 842 90 136ms 3 Oct 2025 519th fuzzylojik-golf 🇺🇸 840 22 3ms 6 Sep 2025 520th emgordon154 839 78 76ms 5 hours ago 521st primo-ppcg 🇹🇭 837 85 58ms 18 Jan 2022 521st 09cf 837 85 59ms 24 Sep 2023 523rd marcin7Cd 836 59 12ms 16 Jan 2021 523rd AlephSquirrel 836 59 12ms 13 May 2021 523rd rschwa6308 🇺🇸 836 59 11ms 28 Jun 2021 523rd NewDefectus 🇮🇱 836 59 13ms 25 Oct 2021 523rd jacksonhenry3 836 59 13ms 21 Dec 2021 523rd NicoAdams 836 59 13ms 21 Dec 2021 523rd yzhs 🇩🇪 836 59 11ms 7 Jun 2022 523rd aksyristos 836 59 16ms 28 Feb 2023 523rd BREMAUCY 🇫🇷 836 59 11ms 27 Apr 2023 523rd MarcMush 🇫🇷 836 59 11ms 12 Feb 2024 523rd CommandLeo 🇮🇹 836 59 12ms 18 Jan 2026 523rd pengu1n-master 836 59 12ms 10 Feb 2026 523rd retrohun 836 59 11ms 26 hours ago 536th GrayJoKing 🇦🇺 835 57 36ms 5 Sep 2024 537th sean-niemann 🇺🇸 834 77 41ms 18 Dec 2023 538th MeWhenI 🇻🇦 833 56 11ms 8 Jun 2022 538th Yewzir 🇧🇪 833 56 13ms 16 Nov 2023 538th voytxt 🇨🇿 833 56 11ms 25 Jan 2025 538th targrik 833 56 10ms 21 Feb 2025 542nd primo-ppcg 🇹🇭 833 77 1,386ms 30 Nov 2021 543rd kritixilithos 832 58 3ms 29 May 2024 544th inventshah 831 64 2ms 17 Nov 2022 544th DialFrost 🇸🇬 831 64 2ms 7 Nov 2025 546th sisyphus-ppcg 🇦🇺 830 60 148ms 25 Feb 2021 547th Kacarott 🇦🇺 829 58 461ms 15 Jan 2024 547th Natanaelel 🇸🇪 829 58 473ms 20 Jan 2024 547th AlephSquirrel 829 58 411ms 21 Jan 2024 547th namelessiw 829 58 509ms 15 Aug 2024 551st GrayJoKing 🇦🇺 829 65 4ms 9 Nov 2023 552nd Irratix 🇳🇱 828 51 34ms 4 Mar 2022 553rd Yewzir 🇧🇪 828 83 469ms 16 Nov 2023 554th Shanethegamer 🇺🇸 826 83 97ms 19 Apr 2022 555th MeWhenI 🇻🇦 826 104 333ms 8 Feb 2023 556th MeWhenI 🇻🇦 825 78 116ms 14 Oct 2022 557th emgordon154 825 105 110ms 4 Dec 2025 558th GrayJoKing 🇦🇺 824 81 120ms 14 Mar 2022 558th MeWhenI 🇻🇦 824 81 120ms 15 Nov 2022 560th AGoyet 822 60 14ms 29 Jun 2022 First Prev 481–560 of 2,004 Next Last