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 Lily 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 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 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 561st ovs-code 🇩🇪 815 66 2ms 10 Oct 2023 561st inventshah 815 66 2ms 22 Oct 2023 563rd BREMAUCY 🇫🇷 814 59 396ms 20 Feb 2024 564th duckyluuk 🇳🇱 814 70 2,332ms 28 Oct 2024 564th jkelly467 814 70 2,249ms 22 Dec 2025 566th janlelis 811 52 43ms 18 Jan 2021 566th hiddicop 🇸🇪 811 52 41ms 29 Jan 2021 566th prplz 🇦🇺 811 52 41ms 22 Apr 2021 566th anter69 🇭🇺 811 52 40ms 14 Jan 2022 566th OhmNomNom 811 52 81ms 12 Oct 2022 566th DialFrost 🇸🇬 811 52 44ms 2 Feb 2023 566th olleicua 🇺🇸 811 52 38ms 25 Feb 2024 566th emgordon154 811 52 38ms 26 Nov 2024 574th Steffan153 🇫🇮 810 79 1,437ms 23 Mar 2023 574th Yewzir 🇧🇪 810 79 38ms 16 Nov 2023 576th FortuiteMan 🇫🇷 809 82 12ms 23 days ago 577th petroselo 808 61 10ms 16 Nov 2021 577th cubed-guy 808 61 11ms 12 Feb 2022 577th CedricGebistorf 808 61 12ms 18 Feb 2022 577th jascotm 808 61 11ms 17 May 2022 577th Eilonlif 🇮🇱 808 61 31ms 9 Sep 2022 577th vishwathg 808 61 22ms 18 Sep 2022 577th jtaxen 808 61 12ms 26 Mar 2024 577th ahmetdemirag 🇨🇾 808 61 19ms 5 Nov 2024 577th Pyroan 808 61 12ms 16 Mar 2025 586th GolfingSuccess 🇬🇷 808 81 9ms 9 Sep 2022 587th Yewzir 🇧🇪 808 88 56ms 14 Oct 2023 587th KasperKivimaeki 🇫🇮 808 88 54ms 27 Nov 2025 587th emgordon154 808 88 57ms 38 hours ago 590th m-tkach 🇺🇦 808 106 25ms 25 Apr 2022 591st primo-ppcg 🇹🇭 805 66 2ms 18 Jan 2021 591st jared-hughes 805 66 2ms 31 Jul 2022 593rd ArmaanAS 804 58 10ms 4 Apr 2021 593rd itsh01 804 58 9ms 18 Nov 2021 595th Dazza314 🇬🇧 803 23 3ms 16 Apr 2021 596th Steffan153 🇫🇮 803 60 2ms 6 May 2023 597th DaDerpDuck 803 76 1ms 20 Jan 2021 598th stefangimmillaro 803 80 111ms 23 Sep 2023 599th emgordon154 803 85 7ms 3 Jan 2025 600th Shanethegamer 🇺🇸 803 94 119ms 25 Jan 2021 601st prplz 🇦🇺 802 83 125ms 10 Jul 2024 602nd MeWhenI 🇻🇦 800 50 3ms 11 Nov 2022 603rd GolfingSuccess 🇬🇷 800 69 8ms 24 Dec 2024 604th MeWhenI 🇻🇦 799 57 1,030ms 15 Sep 2025 605th m-tkach 🇺🇦 799 89 57ms 25 Apr 2022 605th MeWhenI 🇻🇦 799 89 54ms 8 May 2022 607th SirBogman 🇺🇸 796 53 39ms 10 Jun 2024 608th tobeannouncd 796 82 124ms 8 Jan 2024 609th cooljoseph1 795 62 23ms 6 May 2022 609th nkoppel 795 62 11ms 19 Oct 2022 609th AodhanDalton 795 62 12ms 4 Nov 2022 609th nstearns96 🇬🇧 795 62 18ms 28 Nov 2022 609th adamnielson42 🇺🇸 795 62 11ms 10 Jan 2024 609th jbjd 795 62 11ms 2 Mar 2024 609th HumanoidCPU 795 62 11ms 3 Jun 2024 609th jacekwladzinski 795 62 13ms 4 Oct 2025 609th Mabeloid 🇳🇴 795 62 11ms 26 Oct 2025 618th primo-ppcg 🇹🇭 795 78 71ms 13 Oct 2023 619th Shanethegamer 🇺🇸 795 84 468ms 25 Sep 2025 620th TrueBoxGuy 795 95 115ms 24 Sep 2025 621st Shanethegamer 🇺🇸 795 108 277ms 26 Sep 2021 622nd GrayJoKing 🇦🇺 794 86 9ms 15 Aug 2023 622nd Shanethegamer 🇺🇸 794 86 10ms 11 Jan 2024 624th emgordon154 793 67 2ms 22 Apr 2025 625th MichalMarsalek 🇨🇿 793 84 127ms 6 Jan 2023 626th Salutations45 790 59 10ms 9 Jan 2025 627th clockworknazo 790 83 17ms 26 Sep 2022 628th ashtraypettingzoo 🇺🇸 789 19 2ms 3 Apr 2023 628th AlephSquirrel 789 19 2ms 8 Nov 2025 630th MeWhenI 🇻🇦 789 63 114ms 16 Nov 2022 631st MeWhenI 🇻🇦 789 83 3ms 10 Sep 2022 632nd kkoenig 788 109 298ms 5 Jan 2024 633rd prplz 🇦🇺 786 46 248ms 24 Jan 2021 633rd TimCurwick 🇺🇸 786 46 238ms 26 Jan 2021 633rd SirBogman 🇺🇸 786 46 254ms 2 Feb 2024 636th SirBogman 🇺🇸 786 91 38ms 3 Jun 2025 637th Shanethegamer 🇺🇸 784 76 417ms 13 Dec 2021 637th Yax42 🇫🇷 784 76 409ms 5 May 2025 639th Yewzir 🇧🇪 784 82 117ms 28 Mar 2024 640th nwellnhof 🇩🇪 782 38 133ms 21 Oct 2021 First Prev 561–640 of 1,898 Next Last