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 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 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 Topological Sort 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth 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 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 Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 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 Topological Sort 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 581st Kloppermand 🇩🇰 901 74 7 Oct 2022 581st knutae 🇳🇴 901 74 9 Oct 2022 581st Troon 901 74 14 Oct 2022 581st MaxElf999 901 74 14 Oct 2022 581st jakobkordez 🇸🇮 901 74 19 Oct 2022 581st Fishron 901 74 29 Nov 2022 581st SniperSmiley 🇺🇸 901 74 6 Dec 2022 581st elephantpanda 901 74 10 Dec 2022 581st ArthurBond 901 74 19 Dec 2022 581st ItsMeNoobieboy 901 74 20 Dec 2022 581st Larspolo 901 74 25 Dec 2022 581st dcc5480 901 74 12 Jan 2023 581st Ripick 901 74 1 Feb 2023 581st m3nt0ras 🇬🇷 901 74 3 Feb 2023 581st Skwerl23 901 74 5 Feb 2023 581st frankgraziano 901 74 19 Feb 2023 581st KenanHanke 901 74 21 Feb 2023 581st DanielPeterssonAI 901 74 13 Mar 2023 581st jiaminglimjm 🇲🇾 901 74 20 Mar 2023 581st ejini6969 901 74 22 Mar 2023 581st GulgDev 901 74 22 Mar 2023 581st vrnprkh 901 74 30 Mar 2023 581st RuyiLi 901 74 1 Apr 2023 581st StardustGogeta 901 74 7 May 2023 581st zbreit 🇺🇸 901 74 7 May 2023 581st kyleclaassen 901 74 20 May 2023 581st mbittner20 901 74 27 May 2023 581st tweska 🇳🇱 901 74 5 Jun 2023 581st rollershutter 901 74 7 Jul 2023 581st 2011-Chan-Ethan 901 74 9 Jul 2023 581st cros107 🇦🇺 901 74 11 Aug 2023 581st yourlefthandman 901 74 16 Aug 2023 581st daisyyedda 901 74 17 Aug 2023 581st cesarm4 901 74 29 Aug 2023 581st midnattssol 🇸🇪 901 74 22 Sep 2023 581st snoozingnewt 🇺🇸 901 74 23 Sep 2023 581st lambda-abstraction 901 74 21 Oct 2023 581st levavft 901 74 26 Oct 2023 581st Buecherfresser 901 74 22 Nov 2023 581st anarconic 901 74 8 Dec 2023 581st AntoineBlondon 901 74 11 Dec 2023 581st kurkale6ka 901 74 20 Dec 2023 581st Dataen 901 74 10 Jan 2024 581st Anonymousellama21 901 74 14 Mar 2024 581st Bmrl7 901 74 23 Mar 2024 581st cefqrn 901 74 26 May 2024 581st drochom 901 74 18 Jun 2024 581st hiichbindermax 901 74 22 Jun 2024 581st wuzekai518 901 74 9 Jul 2024 581st madex 🇩🇪 901 74 9 Jul 2024 581st cykim8811 901 74 11 Jul 2024 581st imelxr 🇮🇱 901 74 17 Aug 2024 581st EnTerr 901 74 25 Aug 2024 581st Mabeloid 🇳🇴 901 74 1 Sep 2024 581st madeforlosers 901 74 5 Sep 2024 581st LostSyntax21 🇬🇧 901 74 10 Sep 2024 581st Deedogg 901 74 11 Sep 2024 581st MassimoParisi 901 74 18 Sep 2024 581st FortuiteMan 🇫🇷 901 74 10 Oct 2024 581st lifthrasiir 🇰🇷 901 74 13 Nov 2024 581st agreegious 901 74 17 Nov 2024 581st Stockoh 🇫🇷 901 74 17 Nov 2024 581st Andrey135296 901 74 24 Nov 2024 581st TralfamadorianComedian 901 74 6 Dec 2024 581st bltnppcnt 901 74 3 Jan 2025 581st ZorblaxV 901 74 12 Jan 2025 581st yokasuretsu 901 74 13 Jan 2025 581st Artemis21 🇬🇧 901 74 17 Jan 2025 581st gdpr777 901 74 10 Feb 2025 581st Pyroan 901 74 27 Mar 2025 581st Squimbletin 901 74 19 Apr 2025 581st Kowalskiexe 🇵🇱 901 74 19 Apr 2025 581st Dandandooo 901 74 23 Apr 2025 581st khangtm123 901 74 4 May 2025 581st 40fied4t 901 74 6 May 2025 Prev 601–675 of 3,339 Next