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 560th MeWhenI 🇻🇦 817 59 2ms 18 May 2022 562nd m-tkach 🇺🇦 817 101 29ms 18 Jan 2024 563rd MeWhenI 🇻🇦 816 29 52ms 25 Aug 2022 564th ovs-code 🇩🇪 816 52 145ms 4 Aug 2024 565th GrayJoKing 🇦🇺 816 84 466ms 28 Feb 2022 566th MeWhenI 🇻🇦 815 27 33ms 16 Mar 2022 567th Yewzir 🇧🇪 815 61 111ms 16 Nov 2023 568th ovs-code 🇩🇪 815 66 2ms 10 Oct 2023 568th inventshah 815 66 2ms 22 Oct 2023 570th BREMAUCY 🇫🇷 814 59 396ms 20 Feb 2024 571st duckyluuk 🇳🇱 814 70 2,332ms 28 Oct 2024 571st jkelly467 814 70 2,249ms 22 Dec 2025 573rd janlelis 811 52 40ms 18 Jan 2021 573rd hiddicop 🇸🇪 811 52 40ms 29 Jan 2021 573rd prplz 🇦🇺 811 52 39ms 22 Apr 2021 573rd anter69 🇭🇺 811 52 40ms 14 Jan 2022 573rd OhmNomNom 811 52 79ms 12 Oct 2022 573rd DialFrost 🇸🇬 811 52 39ms 2 Feb 2023 573rd olleicua 🇺🇸 811 52 38ms 25 Feb 2024 573rd emgordon154 811 52 38ms 26 Nov 2024 581st Steffan153 🇫🇮 810 79 1,432ms 23 Mar 2023 581st Yewzir 🇧🇪 810 79 37ms 16 Nov 2023 583rd FortuiteMan 🇫🇷 809 82 12ms 16 Jan 2026 584th petroselo 808 61 10ms 16 Nov 2021 584th cubed-guy 808 61 11ms 12 Feb 2022 584th CedricGebistorf 808 61 11ms 18 Feb 2022 584th jascotm 808 61 11ms 17 May 2022 584th Eilonlif 🇮🇱 808 61 31ms 9 Sep 2022 584th vishwathg 808 61 20ms 18 Sep 2022 584th jtaxen 808 61 11ms 26 Mar 2024 584th ahmetdemirag 🇨🇾 808 61 19ms 5 Nov 2024 584th Pyroan 808 61 12ms 16 Mar 2025 593rd GolfingSuccess 🇬🇷 808 81 9ms 9 Sep 2022 594th Yewzir 🇧🇪 808 88 59ms 14 Oct 2023 594th KasperKivimaeki 🇫🇮 808 88 56ms 27 Nov 2025 594th emgordon154 808 88 54ms 27 days ago 597th m-tkach 🇺🇦 808 106 25ms 25 Apr 2022 598th primo-ppcg 🇹🇭 805 66 2ms 18 Jan 2021 598th jared-hughes 805 66 2ms 31 Jul 2022 600th ArmaanAS 804 58 11ms 4 Apr 2021 600th itsh01 804 58 9ms 18 Nov 2021 602nd Dazza314 🇬🇧 803 23 3ms 16 Apr 2021 603rd Steffan153 🇫🇮 803 60 2ms 6 May 2023 604th DaDerpDuck 803 76 1ms 20 Jan 2021 605th stefangimmillaro 803 80 111ms 23 Sep 2023 606th emgordon154 803 85 8ms 3 Jan 2025 607th Shanethegamer 🇺🇸 803 94 120ms 25 Jan 2021 608th prplz 🇦🇺 802 83 126ms 10 Jul 2024 609th MeWhenI 🇻🇦 801 57 1,030ms 15 Sep 2025 610th MeWhenI 🇻🇦 800 50 3ms 11 Nov 2022 611th GolfingSuccess 🇬🇷 800 69 8ms 24 Dec 2024 612th m-tkach 🇺🇦 799 89 56ms 25 Apr 2022 612th MeWhenI 🇻🇦 799 89 56ms 8 May 2022 614th SirBogman 🇺🇸 796 53 37ms 10 Jun 2024 615th tobeannouncd 796 82 124ms 8 Jan 2024 616th cooljoseph1 795 62 23ms 6 May 2022 616th nkoppel 795 62 11ms 19 Oct 2022 616th AodhanDalton 795 62 11ms 4 Nov 2022 616th nstearns96 🇬🇧 795 62 17ms 28 Nov 2022 616th adamnielson42 🇺🇸 795 62 11ms 10 Jan 2024 616th jbjd 795 62 11ms 2 Mar 2024 616th HumanoidCPU 795 62 11ms 3 Jun 2024 616th jacekwladzinski 795 62 13ms 4 Oct 2025 616th Mabeloid 🇳🇴 795 62 11ms 26 Oct 2025 625th primo-ppcg 🇹🇭 795 78 71ms 13 Oct 2023 626th Shanethegamer 🇺🇸 795 84 468ms 25 Sep 2025 627th TrueBoxGuy 795 95 133ms 24 Sep 2025 628th Shanethegamer 🇺🇸 795 108 262ms 26 Sep 2021 629th GrayJoKing 🇦🇺 794 86 10ms 15 Aug 2023 629th Shanethegamer 🇺🇸 794 86 11ms 11 Jan 2024 631st emgordon154 793 67 2ms 22 Apr 2025 632nd MichalMarsalek 🇨🇿 793 84 117ms 6 Jan 2023 633rd Salutations45 790 59 13ms 9 Jan 2025 634th clockworknazo 790 83 17ms 26 Sep 2022 635th ashtraypettingzoo 🇺🇸 789 19 2ms 3 Apr 2023 635th AlephSquirrel 789 19 2ms 8 Nov 2025 637th MeWhenI 🇻🇦 789 63 114ms 16 Nov 2022 638th MeWhenI 🇻🇦 789 83 3ms 10 Sep 2022 639th kkoenig 788 109 311ms 5 Jan 2024 640th prplz 🇦🇺 786 46 248ms 24 Jan 2021 First Prev 561–640 of 1,907 Next Last