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 Dragon Curve 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 Dragon Curve 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 Andriamanitra 🇫🇮 688 95 148ms 20 Jul 2023 882nd KasperKivimaeki 🇫🇮 688 125 346ms 3 Oct 2025 883rd msbranicky 687 89 2ms 26 Sep 2023 884th LeeCamp 685 72 12ms 16 Feb 2022 884th LukasFolwarczny 🇨🇿 685 72 15ms 16 Sep 2022 884th CutSandstone 685 72 39ms 8 Jul 2024 887th Shanethegamer 🇺🇸 684 126 24ms 8 Jul 2021 888th dokutan 680 59 3ms 18 Jul 2025 889th GolfingSuccess 🇬🇷 680 69 33ms 17 Aug 2024 890th jared-hughes 678 35 50ms 31 Jul 2022 890th Natanaelel 🇸🇪 678 35 50ms 18 Aug 2022 890th CaedenHarper 🇨🇦 678 35 52ms 26 days ago 893rd Yewzir 🇧🇪 678 88 398ms 14 Oct 2023 894th SirBogman 🇺🇸 677 44 232ms 22 Oct 2021 895th dokutan 676 99 486ms 24 Sep 2025 896th janbehrens 🇩🇪 675 68 1,441ms 9 Apr 2021 897th richard-oelze 🇩🇪 675 73 31ms 4 Apr 2021 897th mauro-1 🇮🇹 675 73 10ms 18 Aug 2021 897th gchenfc 675 73 18ms 24 Jan 2022 897th hiichbindermax 675 73 11ms 26 Feb 2022 897th Omega65536 🇩🇪 675 73 12ms 24 Nov 2022 897th sandorstormen 675 73 13ms 18 Feb 2023 897th Mr-McChicken 675 73 11ms 15 Oct 2023 897th Masttest 675 73 11ms 21 Feb 2024 897th cuvam 🇺🇸 675 73 22ms 2 days ago 906th msbranicky 675 80 4ms 11 Oct 2023 907th I-Love-47 🇺🇦 672 106 62ms 10 Feb 2022 908th 5quiwyrm 671 54 276ms 5 Dec 2024 909th albanian-laundromat 🇺🇸 669 96 43ms 12 days ago 910th DialFrost 🇸🇬 668 56 83ms 22 Jul 2024 911th CaedenHarper 🇨🇦 666 70 12ms 31 Jan 2025 912th jameslindesay 666 74 13ms 24 Feb 2021 912th PkmnQ 666 74 39ms 5 May 2024 912th RedzGoose 🇦🇺 666 74 12ms 14 Oct 2024 912th yokasuretsu 666 74 13ms 13 Jan 2025 916th MeWhenI 🇻🇦 665 69 360ms 15 Feb 2023 916th MarcMush 🇫🇷 665 69 308ms 12 Feb 2024 916th Yewzir 🇧🇪 665 69 383ms 5 Apr 2024 916th dokutan 665 69 1,188ms 30 Aug 2025 920th DialFrost 🇸🇬 665 75 159ms 3 Jun 2025 921st edsrzf 🇳🇿 665 92 2ms 15 days ago 922nd 77Tigers 665 114 146ms 9 Apr 2024 923rd Natanaelel 🇸🇪 664 56 4ms 20 Jan 2024 924th SirBogman 🇺🇸 660 108 56ms 3 Jan 2022 925th annaproxy 659 91 96ms 13 Jan 2023 926th uttumuttu 🇫🇮 657 71 10ms 8 Jan 2022 926th olleicua 🇺🇸 657 71 11ms 20 Feb 2024 928th Trunksistor 🇫🇷 657 75 11ms 25 May 2022 928th celiendonze 🇨🇭 657 75 13ms 16 Jun 2023 928th qwjhvbxi 657 75 11ms 9 Feb 2024 928th wenbang24 657 75 13ms 6 Apr 2024 932nd AdrienHache 🇫🇷 656 91 411ms 31 Dec 2023 933rd emgordon154 655 65 136ms 6 Sep 2024 934th olivermrose 🇺🇸 653 57 3ms 24 Aug 2021 935th boxjelly 650 65 41ms 11 Feb 2021 935th msbranicky 650 65 42ms 12 Sep 2023 937th Waffle3z 649 76 12ms 20 Jan 2021 937th hellwue 649 76 12ms 16 Nov 2023 937th yuchuehw 649 76 18ms 18 Jan 2024 937th dcc5480 649 76 10ms 10 days ago 941st johnnythedoggie 648 106 109ms 3 Mar 2021 941st snoozingnewt 🇨🇦 648 106 104ms 21 Nov 2025 943rd rboath 645 58 83ms 8 Jan 2025 944th NickTheEASDude 🇺🇸 644 95 1ms 1 Jul 2024 945th Shanethegamer 🇺🇸 643 97 8ms 22 Dec 2023 946th Bubbler-4 642 97 65ms 13 Sep 2023 947th msbranicky 642 134 363ms 3 Oct 2023 948th nephila-nacrea 🇬🇧 641 58 3ms 3 Feb 2021 949th alomiF 641 102 124ms 4 Nov 2024 950th f-tucker 640 77 13ms 2 Feb 2024 950th undefinedRyan 640 77 12ms 19 Apr 2025 950th Emutis 🇱🇹 640 77 11ms 12 Sep 2025 953rd MeWhenI 🇻🇦 640 82 10ms 21 Jul 2023 954th Maznek 639 73 10ms 30 Jun 2023 955th emgordon154 637 98 10ms 10 Dec 2024 956th sreyfe 637 119 164ms 9 Jun 2024 957th janbehrens 🇩🇪 637 135 368ms 13 Jun 2021 958th emgordon154 637 186 1,215ms 30 May 2025 959th Shanethegamer 🇺🇸 636 57 278ms 27 Jul 2023 960th DialFrost 🇸🇬 636 67 128ms 3 Aug 2024 First Prev 881–960 of 2,087 Next Last