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 599th sean-niemann 🇺🇸 903 92 8 Jun 2025 602nd bwat2 903 130 5 May 2022 602nd FlorianCassayre 🇫🇷 903 130 20 Sep 2022 602nd Widgitty 903 130 29 May 2023 605th Steffan153 🇫🇮 902 82 1 Apr 2023 605th sean-niemann 🇺🇸 902 82 12 Jul 2024 607th edsrzf 🇳🇿 902 83 14 Jan 2025 607th kg583 🇺🇸 902 83 14 Feb 2025 609th michael-pruglo 🇺🇦 902 94 5 Jul 2022 609th zygoloid 902 94 5 Aug 2024 611th Lydxn 🇨🇦 901 69 12 Sep 2022 611th GrayJoKing 🇦🇺 901 69 12 Sep 2022 611th btnlq 901 69 24 Sep 2022 614th TobyBoyne 🇬🇧 901 74 4 May 2022 614th RDShah 901 74 6 May 2022 614th Indivicivet 901 74 9 May 2022 614th CedricGebistorf 901 74 9 May 2022 614th ophact 901 74 11 May 2022 614th ImpressedByRocks 901 74 17 May 2022 614th LHuitre 901 74 2 Jun 2022 614th neihousaigaai 901 74 8 Jun 2022 614th rowboat1 901 74 10 Jun 2022 614th inverseLorentz 🇦🇺 901 74 13 Jun 2022 614th yzhs 🇩🇪 901 74 16 Jun 2022 614th clementblaudeau 901 74 29 Jun 2022 614th adoxography 901 74 13 Jul 2022 614th Attero 🇸🇪 901 74 20 Jul 2022 614th Heathcorp 🇦🇺 901 74 27 Jul 2022 614th jfallon1997 901 74 11 Aug 2022 614th VictorFordham 901 74 26 Aug 2022 614th georgehulme 901 74 1 Sep 2022 614th smartiel 901 74 15 Sep 2022 614th trist224 🇫🇷 901 74 21 Sep 2022 614th Kloppermand 🇩🇰 901 74 7 Oct 2022 614th knutae 🇳🇴 901 74 9 Oct 2022 614th Troon 901 74 14 Oct 2022 614th MaxElf999 901 74 14 Oct 2022 614th jakobkordez 🇸🇮 901 74 19 Oct 2022 614th Fishron 901 74 29 Nov 2022 614th SniperSmiley 🇺🇸 901 74 6 Dec 2022 614th elephantpanda 901 74 10 Dec 2022 614th ArthurBond 901 74 19 Dec 2022 614th ItsMeNoobieboy 901 74 20 Dec 2022 614th Larspolo 901 74 25 Dec 2022 614th dcc5480 901 74 12 Jan 2023 614th Ripick 901 74 1 Feb 2023 614th m3nt0ras 🇬🇷 901 74 3 Feb 2023 614th Skwerl23 901 74 5 Feb 2023 614th frankgraziano 901 74 19 Feb 2023 614th KenanHanke 901 74 21 Feb 2023 614th DanielPeterssonAI 901 74 13 Mar 2023 614th jiaminglimjm 🇲🇾 901 74 20 Mar 2023 614th ejini6969 901 74 22 Mar 2023 614th GulgDev 901 74 22 Mar 2023 614th vrnprkh 901 74 30 Mar 2023 614th RuyiLi 901 74 1 Apr 2023 614th StardustGogeta 901 74 7 May 2023 614th zbreit 🇺🇸 901 74 7 May 2023 614th kyleclaassen 901 74 20 May 2023 614th mbittner20 901 74 27 May 2023 614th tweska 🇳🇱 901 74 5 Jun 2023 614th rollershutter 901 74 7 Jul 2023 614th 2011-Chan-Ethan 901 74 9 Jul 2023 614th cros107 🇦🇺 901 74 11 Aug 2023 614th yourlefthandman 901 74 16 Aug 2023 614th daisyyedda 901 74 17 Aug 2023 614th cesarm4 901 74 29 Aug 2023 614th midnattssol 🇸🇪 901 74 22 Sep 2023 614th snoozingnewt 🇺🇸 901 74 23 Sep 2023 614th lambda-abstraction 901 74 21 Oct 2023 614th levavft 901 74 26 Oct 2023 614th Buecherfresser 901 74 22 Nov 2023 614th anarconic 901 74 8 Dec 2023 614th AntoineBlondon 901 74 11 Dec 2023 614th kurkale6ka 901 74 20 Dec 2023 Prev 601–675 of 3,327 Next
