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 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 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 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 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 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 Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 552nd luuumine 🇫🇷 821 60 11ms 20 Oct 2025 552nd solisolu 821 60 11ms 1 Jan 2026 563rd emgordon154 821 105 110ms 4 Dec 2025 564th NewDefectus 🇮🇱 818 57 9ms 1 Nov 2021 565th prplz 🇦🇺 818 65 2ms 24 Jan 2021 565th sisyphus-ppcg 🇦🇺 818 65 2ms 25 Jan 2021 565th 09cf 818 65 2ms 24 Sep 2023 568th MeWhenI 🇻🇦 817 29 51ms 25 Aug 2022 569th inventshah 817 59 2ms 18 May 2022 569th MeWhenI 🇻🇦 817 59 2ms 18 May 2022 571st m-tkach 🇺🇦 817 101 29ms 18 Jan 2024 572nd ovs-code 🇩🇪 816 52 151ms 4 Aug 2024 573rd GrayJoKing 🇦🇺 816 84 466ms 28 Feb 2022 574th MeWhenI 🇻🇦 815 27 33ms 16 Mar 2022 575th Yewzir 🇧🇪 815 61 148ms 16 Nov 2023 576th ovs-code 🇩🇪 815 66 2ms 10 Oct 2023 576th inventshah 815 66 2ms 22 Oct 2023 578th BREMAUCY 🇫🇷 814 59 396ms 20 Feb 2024 579th duckyluuk 🇳🇱 814 70 2,820ms 28 Oct 2024 579th jkelly467 814 70 2,503ms 22 Dec 2025 581st janlelis 811 52 38ms 18 Jan 2021 581st hiddicop 🇸🇪 811 52 37ms 29 Jan 2021 581st prplz 🇦🇺 811 52 39ms 22 Apr 2021 581st anter69 🇭🇺 811 52 45ms 14 Jan 2022 581st OhmNomNom 811 52 76ms 12 Oct 2022 581st DialFrost 🇸🇬 811 52 37ms 2 Feb 2023 581st olleicua 🇺🇸 811 52 39ms 25 Feb 2024 581st emgordon154 811 52 40ms 26 Nov 2024 589th Steffan153 🇫🇮 810 79 1,328ms 23 Mar 2023 589th Yewzir 🇧🇪 810 79 37ms 16 Nov 2023 591st FortuiteMan 🇫🇷 809 82 12ms 16 Jan 2026 592nd petroselo 808 61 10ms 16 Nov 2021 592nd cubed-guy 808 61 11ms 12 Feb 2022 592nd CedricGebistorf 808 61 11ms 18 Feb 2022 592nd jascotm 808 61 11ms 17 May 2022 592nd Eilonlif 🇮🇱 808 61 31ms 9 Sep 2022 592nd vishwathg 808 61 20ms 18 Sep 2022 592nd jtaxen 808 61 11ms 26 Mar 2024 592nd ahmetdemirag 🇨🇾 808 61 19ms 5 Nov 2024 592nd Pyroan 808 61 12ms 16 Mar 2025 601st GolfingSuccess 🇬🇷 808 81 9ms 9 Sep 2022 602nd Yewzir 🇧🇪 808 88 52ms 14 Oct 2023 602nd KasperKivimaeki 🇫🇮 808 88 60ms 27 Nov 2025 602nd emgordon154 808 88 60ms 8 Feb 2026 605th m-tkach 🇺🇦 808 106 25ms 25 Apr 2022 606th primo-ppcg 🇹🇭 805 66 2ms 18 Jan 2021 606th jared-hughes 805 66 2ms 31 Jul 2022 608th ArmaanAS 804 58 10ms 4 Apr 2021 608th itsh01 804 58 13ms 18 Nov 2021 610th Dazza314 🇬🇧 803 23 3ms 16 Apr 2021 611th Steffan153 🇫🇮 803 60 2ms 6 May 2023 612th DaDerpDuck 803 76 1ms 20 Jan 2021 613th stefangimmillaro 803 80 112ms 23 Sep 2023 614th emgordon154 803 85 8ms 3 Jan 2025 615th Shanethegamer 🇺🇸 803 94 120ms 25 Jan 2021 616th prplz 🇦🇺 802 83 124ms 10 Jul 2024 617th MeWhenI 🇻🇦 801 57 1,030ms 15 Sep 2025 618th MeWhenI 🇻🇦 800 50 3ms 11 Nov 2022 619th GolfingSuccess 🇬🇷 800 69 7ms 24 Dec 2024 620th m-tkach 🇺🇦 799 89 57ms 25 Apr 2022 620th MeWhenI 🇻🇦 799 89 54ms 8 May 2022 622nd SirBogman 🇺🇸 796 53 38ms 10 Jun 2024 623rd tobeannouncd 796 82 124ms 8 Jan 2024 624th cooljoseph1 795 62 23ms 6 May 2022 624th nkoppel 795 62 11ms 19 Oct 2022 624th AodhanDalton 795 62 11ms 4 Nov 2022 624th nstearns96 🇬🇧 795 62 17ms 28 Nov 2022 624th adamnielson42 🇺🇸 795 62 11ms 10 Jan 2024 624th jbjd 795 62 11ms 2 Mar 2024 624th HumanoidCPU 795 62 11ms 3 Jun 2024 624th jacekwladzinski 795 62 13ms 4 Oct 2025 624th Mabeloid 🇳🇴 795 62 11ms 26 Oct 2025 633rd primo-ppcg 🇹🇭 795 78 71ms 13 Oct 2023 634th Shanethegamer 🇺🇸 795 84 468ms 25 Sep 2025 635th TrueBoxGuy 795 95 121ms 24 Sep 2025 636th Shanethegamer 🇺🇸 795 108 262ms 26 Sep 2021 637th GrayJoKing 🇦🇺 794 86 10ms 15 Aug 2023 637th Shanethegamer 🇺🇸 794 86 11ms 11 Jan 2024 639th emgordon154 793 67 2ms 22 Apr 2025 640th MichalMarsalek 🇨🇿 793 84 117ms 6 Jan 2023 First Prev 561–640 of 1,919 Next Last