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 881st Yewzir 🇧🇪 678 88 384ms 14 Oct 2023 882nd jared-hughes 677 35 46ms 31 Jul 2022 882nd Natanaelel 🇸🇪 677 35 50ms 18 Aug 2022 882nd CaedenHarper 🇨🇦 677 35 53ms 12 days ago 885th SirBogman 🇺🇸 676 44 232ms 22 Oct 2021 886th richard-oelze 🇩🇪 675 73 31ms 4 Apr 2021 886th mauro-1 🇮🇹 675 73 10ms 18 Aug 2021 886th gchenfc 675 73 18ms 24 Jan 2022 886th hiichbindermax 675 73 11ms 26 Feb 2022 886th Omega65536 🇩🇪 675 73 12ms 24 Nov 2022 886th sandorstormen 675 73 13ms 18 Feb 2023 886th Mr-McChicken 675 73 11ms 15 Oct 2023 886th Masttest 675 73 11ms 21 Feb 2024 894th dokutan 675 99 372ms 24 Sep 2025 895th janbehrens 🇩🇪 674 68 1,239ms 9 Apr 2021 896th msbranicky 674 80 4ms 11 Oct 2023 897th I-Love-47 🇺🇦 672 106 60ms 10 Feb 2022 898th 5quiwyrm 670 54 243ms 5 Dec 2024 899th DialFrost 🇸🇬 667 56 83ms 22 Jul 2024 900th CaedenHarper 🇨🇦 666 70 11ms 31 Jan 2025 901st jameslindesay 666 74 13ms 24 Feb 2021 901st PkmnQ 666 74 39ms 5 May 2024 901st RedzGoose 🇦🇺 666 74 12ms 14 Oct 2024 901st yokasuretsu 666 74 13ms 13 Jan 2025 905th 77Tigers 665 114 144ms 9 Apr 2024 906th Natanaelel 🇸🇪 664 56 4ms 20 Jan 2024 907th MeWhenI 🇻🇦 664 69 312ms 15 Feb 2023 907th MarcMush 🇫🇷 664 69 304ms 12 Feb 2024 907th Yewzir 🇧🇪 664 69 392ms 5 Apr 2024 910th DialFrost 🇸🇬 664 75 159ms 3 Jun 2025 911th edsrzf 🇳🇿 664 92 2ms 14 hours ago 912th dokutan 663 69 1,133ms 30 Aug 2025 913th SirBogman 🇺🇸 659 108 65ms 3 Jan 2022 914th uttumuttu 🇫🇮 657 71 10ms 8 Jan 2022 914th olleicua 🇺🇸 657 71 10ms 20 Feb 2024 916th Trunksistor 🇫🇷 657 75 11ms 25 May 2022 916th celiendonze 🇨🇭 657 75 13ms 16 Jun 2023 916th qwjhvbxi 657 75 11ms 9 Feb 2024 916th wenbang24 657 75 13ms 6 Apr 2024 920th annaproxy 657 91 96ms 13 Jan 2023 921st AdrienHache 🇫🇷 655 91 381ms 31 Dec 2023 922nd albanian-laundromat 🇺🇸 655 98 39ms 28 Nov 2025 923rd emgordon154 654 65 146ms 6 Sep 2024 924th olivermrose 🇺🇸 652 57 3ms 24 Aug 2021 925th jwhear 🇺🇸 651 171 1,847ms 1 Oct 2024 926th boxjelly 650 65 41ms 11 Feb 2021 926th msbranicky 650 65 38ms 12 Sep 2023 928th Waffle3z 649 76 12ms 20 Jan 2021 928th hellwue 649 76 12ms 16 Nov 2023 928th yuchuehw 649 76 18ms 18 Jan 2024 931st johnnythedoggie 647 106 111ms 3 Mar 2021 931st snoozingnewt 🇨🇦 647 106 99ms 21 Nov 2025 933rd rboath 644 58 83ms 8 Jan 2025 934th NickTheEASDude 🇺🇸 643 95 1ms 1 Jul 2024 935th Shanethegamer 🇺🇸 642 97 9ms 22 Dec 2023 936th nephila-nacrea 🇬🇧 641 58 3ms 3 Feb 2021 937th Bubbler-4 641 97 65ms 13 Sep 2023 938th msbranicky 641 134 363ms 3 Oct 2023 939th f-tucker 640 77 13ms 2 Feb 2024 939th undefinedRyan 640 77 12ms 19 Apr 2025 939th Emutis 🇱🇹 640 77 11ms 12 Sep 2025 942nd alomiF 640 102 124ms 4 Nov 2024 943rd Maznek 639 73 10ms 30 Jun 2023 944th MeWhenI 🇻🇦 638 82 10ms 21 Jul 2023 945th sreyfe 637 119 156ms 9 Jun 2024 946th janbehrens 🇩🇪 637 135 368ms 13 Jun 2021 947th MateuszPietrzak 🇵🇱 636 112 52ms 16 Jan 2024 948th Shanethegamer 🇺🇸 635 57 206ms 27 Jul 2023 949th MeWhenI 🇻🇦 635 90 2,241ms 24 Oct 2024 950th emgordon154 635 98 10ms 10 Dec 2024 951st emgordon154 635 186 1,426ms 30 May 2025 952nd DialFrost 🇸🇬 634 67 153ms 3 Aug 2024 953rd dokutan 634 94 392ms 18 Jul 2025 954th SirBogman 🇺🇸 633 84 2ms 14 Dec 2021 955th janbehrens 🇩🇪 633 136 25ms 9 Jul 2021 956th AkashTandon167 632 78 13ms 25 May 2021 956th jhpaques 🇫🇷 632 78 25ms 30 Nov 2022 958th NewDefectus 🇮🇱 630 59 6ms 25 Oct 2021 959th madex 🇩🇪 630 67 40ms 4 days ago 960th Protothor 630 74 10ms 21 days ago First Prev 881–960 of 1,997 Next Last