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 Mandelbrot 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 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 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 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 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 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 Mandelbrot 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 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 899th sisyphus-ppcg 🇦🇺 877 66 6 May 2022 899th Natanaelel 🇸🇪 877 66 15 Jun 2022 899th Z-snails 877 66 27 Feb 2023 899th Jeremy-Stafford 877 66 27 Feb 2023 899th alomiF 877 66 1 Sep 2023 899th btnlq 877 66 17 Oct 2023 907th c0d3-4-F00d 🇩🇪 876 61 6 May 2022 907th jackkav 876 61 26 Jun 2022 907th TechNolaByte 876 61 6 Jul 2022 907th Heathcorp 🇦🇺 876 61 17 Jul 2022 907th C0de5mith 🇺🇸 876 61 3 Aug 2022 907th sebipopa 🇷🇴 876 61 18 Aug 2022 907th moikaturns 🇬🇧 876 61 25 Sep 2022 907th FlorianCassayre 🇫🇷 876 61 27 Sep 2022 907th Mazn3k 876 61 1 Feb 2023 907th tvcv901 876 61 22 Mar 2023 907th unfinishedprogram 876 61 19 Jul 2023 907th snoozingnewt 🇺🇸 876 61 23 Sep 2023 907th funnyboy-roks 876 61 9 May 2024 907th bac0id 876 61 29 Jun 2024 907th madex 🇩🇪 876 61 9 Jul 2024 907th cdesodt 876 61 10 Oct 2024 907th RobertHoeh 876 61 5 Apr 2025 907th kirjavascript 876 61 4 May 2025 907th LvLError 876 61 29 May 2025 907th Lv0Sys 🇵🇱 876 61 30 May 2025 927th johnnythedoggie 876 72 13 May 2022 928th guilhem-roy 🇫🇷 876 76 5 May 2022 928th NewDefectus 🇮🇱 876 76 6 May 2022 928th CuboidRaptor 🇨🇦 876 76 25 May 2022 928th TheSmilingTurtle 876 76 5 Jun 2022 928th Romain-1 🇫🇷 876 76 8 Jun 2022 928th jhpaques 🇫🇷 876 76 30 Jul 2022 928th chriscianfarani 876 76 10 Aug 2022 928th eshilo-draper 876 76 13 Sep 2022 928th suwat513 876 76 22 Sep 2022 928th Jaydosu 876 76 14 Nov 2022 928th tails618 876 76 2 Dec 2022 928th KevinLyvers 876 76 17 Dec 2022 928th nayakrujul 876 76 3 Jan 2023 928th CheeseCake628 🇳🇴 876 76 8 Jan 2023 928th CatsAreFluffy 876 76 18 Feb 2023 928th adamnielson42 🇺🇸 876 76 1 Mar 2023 928th Schreipfelerer 876 76 9 Apr 2023 928th hm5822 876 76 22 Apr 2023 928th celiendonze 🇨🇭 876 76 5 Jul 2023 928th brochmann 🇸🇪 876 76 13 Aug 2023 928th Command-Master 876 76 2 Oct 2023 928th chartung17 876 76 17 Dec 2023 928th smokestacklightnin 🇺🇸 876 76 10 Jan 2024 928th NickTheEASDude 🇺🇸 876 76 26 Jan 2024 928th yuchuehw 876 76 2 Feb 2024 928th Azearia 876 76 26 Feb 2024 928th tpasfieldERAU 876 76 18 May 2024 928th khavik 876 76 29 May 2024 928th Ythaenagor 876 76 5 Aug 2024 928th martion2007 876 76 9 Aug 2024 928th sjrct 876 76 10 Aug 2024 928th Mathrew2012 876 76 9 Nov 2024 928th kawrei 876 76 4 May 2025 961st althryenix 875 134 25 Jul 2022 961st MrGagnonHPS 875 134 1 Nov 2023 961st noescareno 875 134 31 May 2025 964th nwellnhof 🇩🇪 874 53 4 May 2022 964th GrayJoKing 🇦🇺 874 53 6 May 2022 966th c0d3-4-F00d 🇩🇪 874 89 5 May 2022 966th fkantelberg 874 89 15 Jul 2023 966th TRexOnGit 874 89 16 Feb 2024 966th arcpolaris 874 89 18 Nov 2024 970th Grrisly 874 114 25 Mar 2024 971st AlephSquirrel 873 80 20 Apr 2023 971st ashtraypettingzoo 🇺🇸 873 80 1 Apr 2024 973rd inventshah 873 97 6 May 2022 973rd roupiq 🇵🇱 873 97 22 Nov 2023 975th MeWhenI 🇻🇦 873 207 21 Apr 2025 Prev 901–975 of 3,174 Next
