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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions 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 Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> 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 ALGOL 68 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> 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 ALGOL 68 APL ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions 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 Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 879th Yewzir 🇧🇪 663 69 382ms 5 Apr 2024 882nd DialFrost 🇸🇬 663 75 110ms 3 Jun 2025 883rd 77Tigers 662 114 135ms 9 Apr 2024 884th dokutan 660 69 1,041ms 30 Aug 2025 885th SirBogman 🇺🇸 658 108 58ms 3 Jan 2022 886th Trunksistor 🇫🇷 657 75 10ms 25 May 2022 886th celiendonze 🇨🇭 657 75 11ms 16 Jun 2023 886th qwjhvbxi 657 75 10ms 9 Feb 2024 886th wenbang24 657 75 14ms 6 Apr 2024 890th uttumuttu 🇫🇮 656 71 10ms 8 Jan 2022 890th olleicua 🇺🇸 656 71 10ms 20 Feb 2024 892nd annaproxy 656 91 95ms 13 Jan 2023 893rd AdrienHache 🇫🇷 655 91 429ms 31 Dec 2023 894th emgordon154 653 65 144ms 6 Sep 2024 895th albanian-laundromat 653 98 39ms 28 Nov 2025 896th olivermrose 🇺🇸 652 57 3ms 24 Aug 2021 897th boxjelly 649 65 41ms 11 Feb 2021 897th msbranicky 649 65 43ms 12 Sep 2023 899th Shanethegamer 🇺🇸 649 97 7ms 22 Dec 2023 900th jwhear 🇺🇸 649 171 1,847ms 1 Oct 2024 901st Waffle3z 648 76 11ms 20 Jan 2021 901st hellwue 648 76 10ms 16 Nov 2023 901st yuchuehw 648 76 17ms 18 Jan 2024 904th johnnythedoggie 644 106 104ms 3 Mar 2021 904th snoozingnewt 🇨🇦 644 106 90ms 21 Nov 2025 906th rboath 643 58 88ms 8 Jan 2025 907th emgordon154 643 98 10ms 10 Dec 2024 908th NickTheEASDude 🇺🇸 642 95 1ms 1 Jul 2024 909th msbranicky 641 134 253ms 3 Oct 2023 910th nephila-nacrea 🇬🇧 640 58 3ms 3 Feb 2021 911th f-tucker 640 77 11ms 2 Feb 2024 911th undefinedRyan 640 77 11ms 19 Apr 2025 911th Emutis 🇱🇹 640 77 10ms 12 Sep 2025 914th alomiF 640 102 124ms 4 Nov 2024 915th Bubbler-4 639 97 72ms 13 Sep 2023 916th Maznek 638 73 10ms 30 Jun 2023 917th MeWhenI 🇻🇦 637 82 10ms 21 Jul 2023 918th janbehrens 🇩🇪 636 135 254ms 13 Jun 2021 919th Shanethegamer 🇺🇸 635 57 247ms 27 Jul 2023 920th sreyfe 635 119 173ms 9 Jun 2024 921st dokutan 634 94 391ms 18 Jul 2025 922nd MateuszPietrzak 🇵🇱 634 112 56ms 16 Jan 2024 923rd DialFrost 🇸🇬 633 67 135ms 3 Aug 2024 924th SirBogman 🇺🇸 633 84 2ms 14 Dec 2021 925th MeWhenI 🇻🇦 633 90 2,923ms 24 Oct 2024 926th AkashTandon167 632 78 10ms 25 May 2021 926th jhpaques 🇫🇷 632 78 21ms 30 Nov 2022 928th emgordon154 632 186 1,474ms 30 May 2025 929th NewDefectus 🇮🇱 630 59 6ms 25 Oct 2021 930th janbehrens 🇩🇪 629 136 25ms 9 Jul 2021 931st Shanethegamer 🇺🇸 625 64 2ms 26 Jul 2023 932nd twocatsinatrenchcoat 624 79 9ms 29 Mar 2022 932nd SniperSmiley 🇺🇸 624 79 35ms 23 Jun 2022 932nd Glinte 624 79 16ms 14 Dec 2023 932nd Bmrl7 624 79 14ms 19 Mar 2024 936th MeWhenI 🇻🇦 624 101 12ms 9 May 2024 937th CaedenHarper 🇨🇦 624 107 529ms 6 Oct 2025 938th edsrzf 🇳🇿 622 138 247ms 21 Dec 2024 939th emgordon154 622 151 8ms 6 Oct 2024 940th janbehrens 🇩🇪 620 68 42ms 18 Jan 2021 941st ovs-code 🇩🇪 619 48 140ms 2 Jan 2024 942nd Yewzir 🇧🇪 619 64 5ms 16 Nov 2023 943rd MeWhenI 🇻🇦 619 106 341ms 26 Aug 2023 944th AkashTandon167 618 86 2ms 25 May 2021 944th solisolu 618 86 2ms 1 Jan 2026 946th dokutan 618 106 11ms 24 Mar 2025 947th bastienvoirin 🇫🇷 616 80 16ms 4 Feb 2021 947th argusdusty 🇺🇸 616 80 17ms 25 Mar 2021 947th OppositeShark 616 80 11ms 9 Apr 2022 947th WillowWispy 616 80 9ms 16 Mar 2025 951st Shanethegamer 🇺🇸 614 85 4ms 21 Dec 2024 952nd codename68 614 123 138ms 13 Aug 2022 953rd orthoplex 🇨🇽 613 153 19ms 25 Jun 2023 954th Shanethegamer 🇺🇸 612 192 1,404ms 2 Apr 2025 955th ashtraypettingzoo 🇺🇸 611 36 32ms 23 Feb 2023 956th omurakazuaki 🇯🇵 611 69 43ms 19 Feb 2021 957th Herbert00709 🇵🇱 611 87 2ms 19 Nov 2024 958th Shanethegamer 🇺🇸 610 65 6ms 2 Aug 2022 959th JRaspass 🇬🇧 609 61 3ms 5 Sep 2021 960th vodker1 608 81 10ms 9 Mar 2022 First Prev 881–960 of 1,891 Next Last