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 879th CutSandstone 685 72 39ms 8 Jul 2024 882nd Shanethegamer 🇺🇸 684 126 24ms 8 Jul 2021 883rd dokutan 680 59 3ms 18 Jul 2025 884th Yewzir 🇧🇪 678 88 384ms 14 Oct 2023 885th jared-hughes 677 35 46ms 31 Jul 2022 885th Natanaelel 🇸🇪 677 35 50ms 18 Aug 2022 885th CaedenHarper 🇨🇦 677 35 53ms 15 days ago 888th SirBogman 🇺🇸 676 44 232ms 22 Oct 2021 889th dokutan 676 99 372ms 24 Sep 2025 890th janbehrens 🇩🇪 675 68 1,239ms 9 Apr 2021 891st richard-oelze 🇩🇪 675 73 31ms 4 Apr 2021 891st mauro-1 🇮🇹 675 73 10ms 18 Aug 2021 891st gchenfc 675 73 18ms 24 Jan 2022 891st hiichbindermax 675 73 11ms 26 Feb 2022 891st Omega65536 🇩🇪 675 73 12ms 24 Nov 2022 891st sandorstormen 675 73 13ms 18 Feb 2023 891st Mr-McChicken 675 73 11ms 15 Oct 2023 891st Masttest 675 73 11ms 21 Feb 2024 899th msbranicky 674 80 4ms 11 Oct 2023 900th I-Love-47 🇺🇦 672 106 60ms 10 Feb 2022 901st 5quiwyrm 671 54 243ms 5 Dec 2024 902nd albanian-laundromat 🇺🇸 669 96 44ms 47 hours ago 903rd DialFrost 🇸🇬 668 56 83ms 22 Jul 2024 904th CaedenHarper 🇨🇦 666 70 11ms 31 Jan 2025 905th jameslindesay 666 74 13ms 24 Feb 2021 905th PkmnQ 666 74 39ms 5 May 2024 905th RedzGoose 🇦🇺 666 74 12ms 14 Oct 2024 905th yokasuretsu 666 74 13ms 13 Jan 2025 909th MeWhenI 🇻🇦 665 69 360ms 15 Feb 2023 909th MarcMush 🇫🇷 665 69 309ms 12 Feb 2024 909th Yewzir 🇧🇪 665 69 383ms 5 Apr 2024 909th dokutan 665 69 1,133ms 30 Aug 2025 913th DialFrost 🇸🇬 665 75 159ms 3 Jun 2025 914th edsrzf 🇳🇿 665 92 2ms 4 days ago 915th 77Tigers 665 114 144ms 9 Apr 2024 916th Natanaelel 🇸🇪 664 56 4ms 20 Jan 2024 917th SirBogman 🇺🇸 660 108 65ms 3 Jan 2022 918th uttumuttu 🇫🇮 657 71 10ms 8 Jan 2022 918th olleicua 🇺🇸 657 71 10ms 20 Feb 2024 920th Trunksistor 🇫🇷 657 75 11ms 25 May 2022 920th celiendonze 🇨🇭 657 75 13ms 16 Jun 2023 920th qwjhvbxi 657 75 11ms 9 Feb 2024 920th wenbang24 657 75 13ms 6 Apr 2024 924th annaproxy 657 91 96ms 13 Jan 2023 925th AdrienHache 🇫🇷 656 91 381ms 31 Dec 2023 926th emgordon154 654 65 146ms 6 Sep 2024 927th olivermrose 🇺🇸 653 57 3ms 24 Aug 2021 928th boxjelly 650 65 41ms 11 Feb 2021 928th msbranicky 650 65 38ms 12 Sep 2023 930th Waffle3z 649 76 12ms 20 Jan 2021 930th hellwue 649 76 12ms 16 Nov 2023 930th yuchuehw 649 76 18ms 18 Jan 2024 933rd johnnythedoggie 648 106 111ms 3 Mar 2021 933rd snoozingnewt 🇨🇦 648 106 99ms 21 Nov 2025 935th rboath 645 58 83ms 8 Jan 2025 936th NickTheEASDude 🇺🇸 644 95 1ms 1 Jul 2024 937th Shanethegamer 🇺🇸 643 97 9ms 22 Dec 2023 938th msbranicky 642 134 363ms 3 Oct 2023 939th nephila-nacrea 🇬🇧 641 58 3ms 3 Feb 2021 940th Bubbler-4 641 97 65ms 13 Sep 2023 941st f-tucker 640 77 13ms 2 Feb 2024 941st undefinedRyan 640 77 12ms 19 Apr 2025 941st Emutis 🇱🇹 640 77 11ms 12 Sep 2025 944th alomiF 640 102 124ms 4 Nov 2024 945th Maznek 639 73 10ms 30 Jun 2023 946th MeWhenI 🇻🇦 638 82 10ms 21 Jul 2023 947th emgordon154 637 98 10ms 10 Dec 2024 948th sreyfe 637 119 156ms 9 Jun 2024 949th janbehrens 🇩🇪 637 135 368ms 13 Jun 2021 950th Shanethegamer 🇺🇸 636 57 206ms 27 Jul 2023 951st MeWhenI 🇻🇦 636 90 2,241ms 24 Oct 2024 952nd MateuszPietrzak 🇵🇱 636 112 52ms 16 Jan 2024 953rd dokutan 635 94 392ms 18 Jul 2025 954th emgordon154 635 186 1,468ms 30 May 2025 955th DialFrost 🇸🇬 634 67 153ms 3 Aug 2024 956th janbehrens 🇩🇪 634 136 25ms 9 Jul 2021 957th SirBogman 🇺🇸 633 84 2ms 14 Dec 2021 958th AkashTandon167 632 78 13ms 25 May 2021 958th jhpaques 🇫🇷 632 78 25ms 30 Nov 2022 960th NewDefectus 🇮🇱 630 59 6ms 25 Oct 2021 First Prev 881–960 of 2,022 Next Last