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 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 QR Encoder Quadratic Formula Scrambled Alphabetization 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 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 QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 518th edsrzf 🇳🇿 902 72 12 Apr 2025 527th Lydxn 🇨🇦 901 70 7 May 2022 528th Shanethegamer 🇺🇸 901 82 19 Dec 2023 528th edsrzf 🇳🇿 901 82 6 Jan 2025 530th stefangimmillaro 901 92 24 Oct 2023 530th inverseLorentz 🇦🇺 901 92 27 May 2024 532nd bwat2 901 130 5 May 2022 532nd FlorianCassayre 🇫🇷 901 130 20 Sep 2022 532nd Widgitty 901 130 29 May 2023 535th MeWhenI 🇻🇦 900 71 20 Aug 2024 536th TobyBoyne 🇬🇧 900 74 4 May 2022 536th RDShah 900 74 6 May 2022 536th Indivicivet 900 74 9 May 2022 536th CedricGebistorf 900 74 9 May 2022 536th ophact 900 74 11 May 2022 536th ImpressedByRocks 900 74 17 May 2022 536th LHuitre 900 74 2 Jun 2022 536th neihousaigaai 900 74 8 Jun 2022 536th rowboat1 900 74 10 Jun 2022 536th inverseLorentz 🇦🇺 900 74 13 Jun 2022 536th yzhs 🇩🇪 900 74 16 Jun 2022 536th clementblaudeau 900 74 29 Jun 2022 536th adoxography 900 74 13 Jul 2022 536th Attero 🇸🇪 900 74 20 Jul 2022 536th Heathcorp 🇦🇺 900 74 27 Jul 2022 536th jfallon1997 900 74 11 Aug 2022 536th VictorFordham 900 74 26 Aug 2022 536th georgehulme 900 74 1 Sep 2022 536th smartiel 900 74 15 Sep 2022 536th trist224 🇫🇷 900 74 21 Sep 2022 536th Kloppermand 🇩🇰 900 74 7 Oct 2022 536th knutae 🇳🇴 900 74 9 Oct 2022 536th Troon 900 74 14 Oct 2022 536th MaxElf999 900 74 14 Oct 2022 536th jakobkordez 🇸🇮 900 74 19 Oct 2022 536th Fishron 900 74 29 Nov 2022 536th SniperSmiley 🇺🇸 900 74 6 Dec 2022 536th elephantpanda 900 74 10 Dec 2022 536th ArthurBond 900 74 19 Dec 2022 536th ItsMeNoobieboy 900 74 20 Dec 2022 536th Larspolo 900 74 25 Dec 2022 536th dcc5480 900 74 12 Jan 2023 536th Ripick 900 74 1 Feb 2023 536th m3nt0ras 🇬🇷 900 74 3 Feb 2023 536th Skwerl23 900 74 5 Feb 2023 536th frankgraziano 900 74 19 Feb 2023 536th BREMAUCY 🇫🇷 900 74 20 Feb 2023 536th KenanHanke 900 74 21 Feb 2023 536th DanielPeterssonAI 900 74 13 Mar 2023 536th jiaminglimjm 🇲🇾 900 74 20 Mar 2023 536th ejini6969 900 74 22 Mar 2023 536th GulgDev 900 74 22 Mar 2023 536th vrnprkh 900 74 30 Mar 2023 536th RuyiLi 900 74 1 Apr 2023 536th StardustGogeta 900 74 7 May 2023 536th zbreit 🇺🇸 900 74 7 May 2023 536th kyleclaassen 900 74 20 May 2023 536th mbittner20 900 74 27 May 2023 536th tweska 🇳🇱 900 74 5 Jun 2023 536th rollershutter 900 74 7 Jul 2023 536th 2011-Chan-Ethan 900 74 9 Jul 2023 536th cros107 900 74 11 Aug 2023 536th yourlefthandman 900 74 16 Aug 2023 536th daisyyedda 900 74 17 Aug 2023 536th cesarm4 900 74 29 Aug 2023 536th midnattssol 🇸🇪 900 74 22 Sep 2023 536th snoozingnewt 🇺🇸 900 74 23 Sep 2023 536th lambda-abstraction 900 74 21 Oct 2023 536th levavft 900 74 26 Oct 2023 536th Buecherfresser 900 74 22 Nov 2023 536th anarconic 900 74 8 Dec 2023 536th AntoineBlondon 900 74 11 Dec 2023 536th kurkale6ka 900 74 20 Dec 2023 536th Dataen 900 74 10 Jan 2024 536th Anonymousellama21 900 74 14 Mar 2024 Prev 526–600 of 3,054 Next