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 880th mauro-1 🇮🇹 675 73 9ms 18 Aug 2021 880th gchenfc 675 73 9ms 24 Jan 2022 880th hiichbindermax 675 73 11ms 26 Feb 2022 880th Omega65536 🇩🇪 675 73 11ms 24 Nov 2022 880th sandorstormen 675 73 11ms 18 Feb 2023 880th Mr-McChicken 675 73 10ms 15 Oct 2023 880th Masttest 675 73 10ms 21 Feb 2024 888th dokutan 675 99 372ms 24 Sep 2025 889th janbehrens 🇩🇪 673 68 1,239ms 9 Apr 2021 890th madex 🇩🇪 673 79 2ms 11 Jul 2024 891st msbranicky 672 80 5ms 11 Oct 2023 892nd I-Love-47 🇺🇦 671 106 59ms 10 Feb 2022 893rd 5quiwyrm 670 54 293ms 5 Dec 2024 894th DialFrost 🇸🇬 666 56 83ms 22 Jul 2024 895th CaedenHarper 🇨🇦 666 70 10ms 31 Jan 2025 896th jameslindesay 666 74 11ms 24 Feb 2021 896th PkmnQ 666 74 37ms 5 May 2024 896th RedzGoose 🇦🇺 666 74 11ms 14 Oct 2024 896th yokasuretsu 666 74 11ms 13 Jan 2025 900th Natanaelel 🇸🇪 663 56 4ms 20 Jan 2024 901st MeWhenI 🇻🇦 663 69 312ms 15 Feb 2023 901st MarcMush 🇫🇷 663 69 304ms 12 Feb 2024 901st Yewzir 🇧🇪 663 69 398ms 5 Apr 2024 904th DialFrost 🇸🇬 663 75 163ms 3 Jun 2025 905th dokutan 662 69 1,133ms 30 Aug 2025 906th 77Tigers 662 114 144ms 9 Apr 2024 907th SirBogman 🇺🇸 659 108 61ms 3 Jan 2022 908th uttumuttu 🇫🇮 657 71 9ms 8 Jan 2022 908th olleicua 🇺🇸 657 71 9ms 20 Feb 2024 910th Trunksistor 🇫🇷 657 75 11ms 25 May 2022 910th celiendonze 🇨🇭 657 75 12ms 16 Jun 2023 910th qwjhvbxi 657 75 11ms 9 Feb 2024 910th wenbang24 657 75 14ms 6 Apr 2024 914th annaproxy 656 91 96ms 13 Jan 2023 915th AdrienHache 🇫🇷 655 91 406ms 31 Dec 2023 916th emgordon154 653 65 146ms 6 Sep 2024 917th albanian-laundromat 653 98 39ms 28 Nov 2025 918th olivermrose 🇺🇸 652 57 3ms 24 Aug 2021 919th boxjelly 649 65 41ms 11 Feb 2021 919th msbranicky 649 65 38ms 12 Sep 2023 921st jwhear 🇺🇸 649 171 1,847ms 1 Oct 2024 922nd Waffle3z 648 76 14ms 20 Jan 2021 922nd hellwue 648 76 11ms 16 Nov 2023 922nd yuchuehw 648 76 17ms 18 Jan 2024 925th johnnythedoggie 644 106 111ms 3 Mar 2021 925th snoozingnewt 🇨🇦 644 106 99ms 21 Nov 2025 927th rboath 643 58 83ms 8 Jan 2025 928th NickTheEASDude 🇺🇸 642 95 1ms 1 Jul 2024 929th Shanethegamer 🇺🇸 641 97 9ms 22 Dec 2023 930th msbranicky 641 134 294ms 3 Oct 2023 931st nephila-nacrea 🇬🇧 640 58 3ms 3 Feb 2021 932nd f-tucker 640 77 11ms 2 Feb 2024 932nd undefinedRyan 640 77 14ms 19 Apr 2025 932nd Emutis 🇱🇹 640 77 12ms 12 Sep 2025 935th alomiF 640 102 124ms 4 Nov 2024 936th Maznek 639 73 10ms 30 Jun 2023 937th Bubbler-4 639 97 72ms 13 Sep 2023 938th MeWhenI 🇻🇦 637 82 10ms 21 Jul 2023 939th janbehrens 🇩🇪 636 135 282ms 13 Jun 2021 940th Shanethegamer 🇺🇸 635 57 258ms 27 Jul 2023 941st MateuszPietrzak 🇵🇱 635 112 55ms 16 Jan 2024 942nd sreyfe 635 119 156ms 9 Jun 2024 943rd dokutan 634 94 392ms 18 Jul 2025 944th emgordon154 634 98 10ms 10 Dec 2024 945th DialFrost 🇸🇬 633 67 154ms 3 Aug 2024 946th SirBogman 🇺🇸 633 84 2ms 14 Dec 2021 947th MeWhenI 🇻🇦 633 90 2,506ms 24 Oct 2024 948th AkashTandon167 632 78 11ms 25 May 2021 948th jhpaques 🇫🇷 632 78 20ms 30 Nov 2022 950th emgordon154 632 186 1,426ms 30 May 2025 951st janbehrens 🇩🇪 631 136 25ms 9 Jul 2021 952nd NewDefectus 🇮🇱 630 59 6ms 25 Oct 2021 953rd Protothor 630 74 9ms 12 days ago 954th Shanethegamer 🇺🇸 625 64 2ms 26 Jul 2023 955th twocatsinatrenchcoat 624 79 9ms 29 Mar 2022 955th SniperSmiley 🇺🇸 624 79 41ms 23 Jun 2022 955th Glinte 624 79 17ms 14 Dec 2023 955th Bmrl7 624 79 13ms 19 Mar 2024 955th acotis 624 79 12ms 25 days ago 960th CaedenHarper 🇨🇦 624 107 492ms 6 Oct 2025 First Prev 881–960 of 1,924 Next Last