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 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 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 Knight 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 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 Knight 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 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 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 601st Steffan153 🇫🇮 901 82 1 Apr 2023 601st sean-niemann 🇺🇸 901 82 12 Jul 2024 603rd michael-pruglo 🇺🇦 901 94 5 Jul 2022 603rd zygoloid 901 94 5 Aug 2024 605th TobyBoyne 🇬🇧 900 74 4 May 2022 605th RDShah 900 74 6 May 2022 605th Indivicivet 900 74 9 May 2022 605th CedricGebistorf 900 74 9 May 2022 605th ophact 900 74 11 May 2022 605th ImpressedByRocks 900 74 17 May 2022 605th LHuitre 900 74 2 Jun 2022 605th neihousaigaai 900 74 8 Jun 2022 605th rowboat1 900 74 10 Jun 2022 605th inverseLorentz 🇦🇺 900 74 13 Jun 2022 605th yzhs 🇩🇪 900 74 16 Jun 2022 605th clementblaudeau 900 74 29 Jun 2022 605th adoxography 900 74 13 Jul 2022 605th Attero 🇸🇪 900 74 20 Jul 2022 605th Heathcorp 🇦🇺 900 74 27 Jul 2022 605th jfallon1997 900 74 11 Aug 2022 605th VictorFordham 900 74 26 Aug 2022 605th georgehulme 900 74 1 Sep 2022 605th smartiel 900 74 15 Sep 2022 605th trist224 🇫🇷 900 74 21 Sep 2022 605th Kloppermand 🇩🇰 900 74 7 Oct 2022 605th knutae 🇳🇴 900 74 9 Oct 2022 605th Troon 900 74 14 Oct 2022 605th MaxElf999 900 74 14 Oct 2022 605th jakobkordez 🇸🇮 900 74 19 Oct 2022 605th Fishron 900 74 29 Nov 2022 605th SniperSmiley 🇺🇸 900 74 6 Dec 2022 605th elephantpanda 900 74 10 Dec 2022 605th ArthurBond 900 74 19 Dec 2022 605th ItsMeNoobieboy 900 74 20 Dec 2022 605th Larspolo 900 74 25 Dec 2022 605th dcc5480 900 74 12 Jan 2023 605th Ripick 900 74 1 Feb 2023 605th m3nt0ras 🇬🇷 900 74 3 Feb 2023 605th Skwerl23 900 74 5 Feb 2023 605th frankgraziano 900 74 19 Feb 2023 605th KenanHanke 900 74 21 Feb 2023 605th DanielPeterssonAI 900 74 13 Mar 2023 605th jiaminglimjm 🇲🇾 900 74 20 Mar 2023 605th ejini6969 900 74 22 Mar 2023 605th GulgDev 900 74 22 Mar 2023 605th vrnprkh 900 74 30 Mar 2023 605th RuyiLi 900 74 1 Apr 2023 605th StardustGogeta 900 74 7 May 2023 605th zbreit 🇺🇸 900 74 7 May 2023 605th kyleclaassen 900 74 20 May 2023 605th mbittner20 900 74 27 May 2023 605th tweska 🇳🇱 900 74 5 Jun 2023 605th rollershutter 900 74 7 Jul 2023 605th 2011-Chan-Ethan 900 74 9 Jul 2023 605th cros107 900 74 11 Aug 2023 605th yourlefthandman 900 74 16 Aug 2023 605th daisyyedda 900 74 17 Aug 2023 605th cesarm4 900 74 29 Aug 2023 605th midnattssol 🇸🇪 900 74 22 Sep 2023 605th snoozingnewt 🇺🇸 900 74 23 Sep 2023 605th lambda-abstraction 900 74 21 Oct 2023 605th levavft 900 74 26 Oct 2023 605th Buecherfresser 900 74 22 Nov 2023 605th anarconic 900 74 8 Dec 2023 605th AntoineBlondon 900 74 11 Dec 2023 605th kurkale6ka 900 74 20 Dec 2023 605th Dataen 900 74 10 Jan 2024 605th Anonymousellama21 900 74 14 Mar 2024 605th Bmrl7 900 74 23 Mar 2024 605th cefqrn 900 74 26 May 2024 605th drochom 900 74 18 Jun 2024 605th hiichbindermax 900 74 22 Jun 2024 605th wuzekai518 900 74 9 Jul 2024 605th madex 🇩🇪 900 74 9 Jul 2024 605th cykim8811 900 74 11 Jul 2024 Prev 601–675 of 3,280 Next