Collatz in all languages in bytes. Cheevos Holes Recent Holes Langs Medals Misc 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 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 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 Maze Medal Tally Morse Decoder Morse Encoder 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript 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 Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 F# Factor Forth Fortran Gleam Go GolfScript 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 Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 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 Maze Medal Tally Morse Decoder Morse Encoder 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 893rd Mazn3k 876 61 1 Feb 2023 893rd tvcv901 876 61 22 Mar 2023 893rd unfinishedprogram 876 61 19 Jul 2023 893rd snoozingnewt 🇺🇸 876 61 23 Sep 2023 893rd funnyboy-roks 876 61 9 May 2024 893rd bac0id 876 61 29 Jun 2024 893rd madex 🇩🇪 876 61 9 Jul 2024 893rd cdesodt 876 61 10 Oct 2024 893rd RobertHoeh 876 61 5 Apr 2025 893rd kirjavascript 876 61 4 May 2025 893rd LvLError 876 61 21 days ago 893rd Lv0Sys 🇵🇱 876 61 21 days ago 893rd Protothor 876 61 20 days ago 914th johnnythedoggie 876 72 13 May 2022 915th guilhem-roy 🇫🇷 876 76 5 May 2022 915th NewDefectus 🇮🇱 876 76 6 May 2022 915th CuboidRaptor 🇨🇦 876 76 25 May 2022 915th TheSmilingTurtle 876 76 5 Jun 2022 915th Romain-1 🇫🇷 876 76 8 Jun 2022 915th jhpaques 🇫🇷 876 76 30 Jul 2022 915th chriscianfarani 876 76 10 Aug 2022 915th eshilo-draper 876 76 13 Sep 2022 915th suwat513 876 76 22 Sep 2022 915th Jaydosu 876 76 14 Nov 2022 915th tails618 876 76 2 Dec 2022 915th KevinLyvers 876 76 17 Dec 2022 915th nayakrujul 876 76 3 Jan 2023 915th CheeseCake628 🇳🇴 876 76 8 Jan 2023 915th CatsAreFluffy 876 76 18 Feb 2023 915th adamnielson42 🇺🇸 876 76 1 Mar 2023 915th Schreipfelerer 876 76 9 Apr 2023 915th hm5822 876 76 22 Apr 2023 915th celiendonze 🇨🇭 876 76 5 Jul 2023 915th brochmann 🇸🇪 876 76 13 Aug 2023 915th Command-Master 876 76 2 Oct 2023 915th chartung17 876 76 17 Dec 2023 915th smokestacklightnin 🇺🇸 876 76 10 Jan 2024 915th NickTheEASDude 🇺🇸 876 76 26 Jan 2024 915th yuchuehw 876 76 2 Feb 2024 915th Azearia 876 76 26 Feb 2024 915th tpasfieldERAU 876 76 18 May 2024 915th khavik 876 76 29 May 2024 915th Ythaenagor 876 76 5 Aug 2024 915th martion2007 876 76 9 Aug 2024 915th sjrct 876 76 10 Aug 2024 915th Mathrew2012 876 76 9 Nov 2024 915th kawrei 876 76 4 May 2025 948th althryenix 875 134 25 Jul 2022 948th MrGagnonHPS 875 134 1 Nov 2023 948th noescareno 875 134 20 days ago 951st nwellnhof 🇩🇪 874 53 4 May 2022 951st GrayJoKing 🇦🇺 874 53 6 May 2022 953rd c0d3-4-F00d 🇩🇪 874 89 5 May 2022 953rd fkantelberg 874 89 15 Jul 2023 953rd TRexOnGit 874 89 16 Feb 2024 953rd arcpolaris 874 89 18 Nov 2024 957th AlephSquirrel 873 80 20 Apr 2023 957th ashtraypettingzoo 🇺🇸 873 80 1 Apr 2024 959th inventshah 873 97 6 May 2022 959th roupiq 🇵🇱 873 97 22 Nov 2023 961st Grrisly 873 114 25 Mar 2024 962nd MeWhenI 🇻🇦 873 207 21 Apr 2025 963rd Irratix 🇳🇱 872 72 4 May 2022 963rd m-tkach 🇺🇦 872 72 4 May 2022 963rd jared-hughes 872 72 6 Jul 2022 963rd michael-pruglo 🇺🇦 872 72 13 Jul 2022 963rd Steffan153 🇫🇮 872 72 3 Jan 2023 963rd MeWhenI 🇻🇦 872 72 7 May 2023 963rd ListeriaM 872 72 22 Aug 2023 963rd JohandeRuiter 🇳🇱 872 72 14 Sep 2024 963rd larcherMTT 872 72 5 Oct 2024 963rd snyderek 🇺🇸 872 72 19 Feb 2025 973rd DialFrost 🇸🇬 872 86 24 Oct 2024 973rd stefangimmillaro 872 86 14 Jan 2025 975th MeWhenI 🇻🇦 871 71 13 Dec 2022 Prev 901–975 of 3,132 Next
