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 Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 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 ArkScript 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 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 ArkScript 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 Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 881st janbehrens 🇩🇪 673 68 1,239ms 9 Apr 2021 882nd madex 🇩🇪 673 79 2ms 11 Jul 2024 883rd msbranicky 672 80 4ms 11 Oct 2023 884th I-Love-47 🇺🇦 671 106 68ms 10 Feb 2022 885th 5quiwyrm 670 54 288ms 5 Dec 2024 886th DialFrost 🇸🇬 666 56 81ms 22 Jul 2024 887th CaedenHarper 🇨🇦 666 70 10ms 31 Jan 2025 888th jameslindesay 666 74 11ms 24 Feb 2021 888th PkmnQ 666 74 37ms 5 May 2024 888th RedzGoose 🇦🇺 666 74 11ms 14 Oct 2024 888th yokasuretsu 666 74 11ms 13 Jan 2025 892nd Natanaelel 🇸🇪 663 56 4ms 20 Jan 2024 893rd MeWhenI 🇻🇦 663 69 312ms 15 Feb 2023 893rd MarcMush 🇫🇷 663 69 304ms 12 Feb 2024 893rd Yewzir 🇧🇪 663 69 398ms 5 Apr 2024 896th DialFrost 🇸🇬 663 75 175ms 3 Jun 2025 897th dokutan 662 69 1,041ms 30 Aug 2025 898th 77Tigers 662 114 149ms 9 Apr 2024 899th SirBogman 🇺🇸 659 108 60ms 3 Jan 2022 900th Trunksistor 🇫🇷 657 75 11ms 25 May 2022 900th celiendonze 🇨🇭 657 75 12ms 16 Jun 2023 900th qwjhvbxi 657 75 11ms 9 Feb 2024 900th wenbang24 657 75 14ms 6 Apr 2024 904th uttumuttu 🇫🇮 656 71 10ms 8 Jan 2022 904th olleicua 🇺🇸 656 71 9ms 20 Feb 2024 906th annaproxy 656 91 99ms 13 Jan 2023 907th AdrienHache 🇫🇷 655 91 429ms 31 Dec 2023 908th emgordon154 653 65 159ms 6 Sep 2024 909th albanian-laundromat 653 98 39ms 28 Nov 2025 910th olivermrose 🇺🇸 652 57 4ms 24 Aug 2021 911th boxjelly 649 65 41ms 11 Feb 2021 911th msbranicky 649 65 42ms 12 Sep 2023 913th Shanethegamer 🇺🇸 649 97 7ms 22 Dec 2023 914th jwhear 🇺🇸 649 171 1,847ms 1 Oct 2024 915th Waffle3z 648 76 14ms 20 Jan 2021 915th hellwue 648 76 11ms 16 Nov 2023 915th yuchuehw 648 76 17ms 18 Jan 2024 918th johnnythedoggie 644 106 110ms 3 Mar 2021 918th snoozingnewt 🇨🇦 644 106 95ms 21 Nov 2025 920th rboath 643 58 88ms 8 Jan 2025 921st emgordon154 643 98 9ms 10 Dec 2024 922nd NickTheEASDude 🇺🇸 642 95 1ms 1 Jul 2024 923rd msbranicky 641 134 294ms 3 Oct 2023 924th nephila-nacrea 🇬🇧 640 58 3ms 3 Feb 2021 925th f-tucker 640 77 11ms 2 Feb 2024 925th undefinedRyan 640 77 14ms 19 Apr 2025 925th Emutis 🇱🇹 640 77 12ms 12 Sep 2025 928th alomiF 640 102 124ms 4 Nov 2024 929th Bubbler-4 639 97 72ms 13 Sep 2023 930th Maznek 638 73 10ms 30 Jun 2023 931st MeWhenI 🇻🇦 637 82 10ms 21 Jul 2023 932nd janbehrens 🇩🇪 636 135 282ms 13 Jun 2021 933rd Shanethegamer 🇺🇸 635 57 247ms 27 Jul 2023 934th MateuszPietrzak 🇵🇱 635 112 61ms 16 Jan 2024 935th sreyfe 635 119 160ms 9 Jun 2024 936th dokutan 634 94 391ms 18 Jul 2025 937th DialFrost 🇸🇬 633 67 149ms 3 Aug 2024 938th SirBogman 🇺🇸 633 84 2ms 14 Dec 2021 939th MeWhenI 🇻🇦 633 90 2,346ms 24 Oct 2024 940th AkashTandon167 632 78 11ms 25 May 2021 940th jhpaques 🇫🇷 632 78 20ms 30 Nov 2022 942nd emgordon154 632 186 1,483ms 30 May 2025 943rd NewDefectus 🇮🇱 630 59 6ms 25 Oct 2021 944th janbehrens 🇩🇪 630 136 25ms 9 Jul 2021 945th Shanethegamer 🇺🇸 625 64 2ms 26 Jul 2023 946th twocatsinatrenchcoat 624 79 9ms 29 Mar 2022 946th SniperSmiley 🇺🇸 624 79 41ms 23 Jun 2022 946th Glinte 624 79 17ms 14 Dec 2023 946th Bmrl7 624 79 13ms 19 Mar 2024 946th acotis 624 79 12ms 3 days ago 951st MeWhenI 🇻🇦 624 101 12ms 9 May 2024 952nd CaedenHarper 🇨🇦 624 107 492ms 6 Oct 2025 953rd edsrzf 🇳🇿 622 138 294ms 21 Dec 2024 954th emgordon154 622 151 9ms 6 Oct 2024 955th Yewzir 🇧🇪 620 64 6ms 16 Nov 2023 956th janbehrens 🇩🇪 620 68 42ms 18 Jan 2021 957th ovs-code 🇩🇪 619 48 158ms 2 Jan 2024 958th MeWhenI 🇻🇦 619 106 345ms 26 Aug 2023 959th AkashTandon167 618 86 2ms 25 May 2021 959th solisolu 618 86 2ms 1 Jan 2026 First Prev 881–960 of 1,912 Next Last