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 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 Mandelbrot 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 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 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 Mandelbrot 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 522nd GrayJoKing 🇦🇺 902 72 22 Oct 2022 522nd emplv 🇱🇻 902 72 27 Oct 2022 522nd sean-niemann 🇺🇸 902 72 7 Mar 2025 522nd Blendi-Goose 902 72 16 Mar 2025 522nd edsrzf 🇳🇿 902 72 12 Apr 2025 531st stefangimmillaro 902 92 24 Oct 2023 531st inverseLorentz 🇦🇺 902 92 27 May 2024 533rd bwat2 902 130 5 May 2022 533rd FlorianCassayre 🇫🇷 902 130 20 Sep 2022 533rd Widgitty 902 130 29 May 2023 536th Lydxn 🇨🇦 901 70 7 May 2022 537th Shanethegamer 🇺🇸 901 82 19 Dec 2023 537th edsrzf 🇳🇿 901 82 6 Jan 2025 539th michael-pruglo 🇺🇦 901 94 5 Jul 2022 539th zygoloid 901 94 5 Aug 2024 541st TobyBoyne 🇬🇧 900 74 4 May 2022 541st RDShah 900 74 6 May 2022 541st Indivicivet 900 74 9 May 2022 541st CedricGebistorf 900 74 9 May 2022 541st ophact 900 74 11 May 2022 541st ImpressedByRocks 900 74 17 May 2022 541st LHuitre 900 74 2 Jun 2022 541st neihousaigaai 900 74 8 Jun 2022 541st rowboat1 900 74 10 Jun 2022 541st inverseLorentz 🇦🇺 900 74 13 Jun 2022 541st yzhs 🇩🇪 900 74 16 Jun 2022 541st clementblaudeau 900 74 29 Jun 2022 541st adoxography 900 74 13 Jul 2022 541st Attero 🇸🇪 900 74 20 Jul 2022 541st Heathcorp 🇦🇺 900 74 27 Jul 2022 541st jfallon1997 900 74 11 Aug 2022 541st VictorFordham 900 74 26 Aug 2022 541st georgehulme 900 74 1 Sep 2022 541st smartiel 900 74 15 Sep 2022 541st trist224 🇫🇷 900 74 21 Sep 2022 541st Kloppermand 🇩🇰 900 74 7 Oct 2022 541st knutae 🇳🇴 900 74 9 Oct 2022 541st Troon 900 74 14 Oct 2022 541st MaxElf999 900 74 14 Oct 2022 541st jakobkordez 🇸🇮 900 74 19 Oct 2022 541st Fishron 900 74 29 Nov 2022 541st SniperSmiley 🇺🇸 900 74 6 Dec 2022 541st elephantpanda 900 74 10 Dec 2022 541st ArthurBond 900 74 19 Dec 2022 541st ItsMeNoobieboy 900 74 20 Dec 2022 541st Larspolo 900 74 25 Dec 2022 541st dcc5480 900 74 12 Jan 2023 541st Ripick 900 74 1 Feb 2023 541st m3nt0ras 🇬🇷 900 74 3 Feb 2023 541st Skwerl23 900 74 5 Feb 2023 541st frankgraziano 900 74 19 Feb 2023 541st BREMAUCY 🇫🇷 900 74 20 Feb 2023 541st KenanHanke 900 74 21 Feb 2023 541st DanielPeterssonAI 900 74 13 Mar 2023 541st jiaminglimjm 🇲🇾 900 74 20 Mar 2023 541st ejini6969 900 74 22 Mar 2023 541st GulgDev 900 74 22 Mar 2023 541st vrnprkh 900 74 30 Mar 2023 541st RuyiLi 900 74 1 Apr 2023 541st StardustGogeta 900 74 7 May 2023 541st zbreit 🇺🇸 900 74 7 May 2023 541st kyleclaassen 900 74 20 May 2023 541st mbittner20 900 74 27 May 2023 541st tweska 🇳🇱 900 74 5 Jun 2023 541st rollershutter 900 74 7 Jul 2023 541st 2011-Chan-Ethan 900 74 9 Jul 2023 541st cros107 900 74 11 Aug 2023 541st yourlefthandman 900 74 16 Aug 2023 541st daisyyedda 900 74 17 Aug 2023 541st cesarm4 900 74 29 Aug 2023 541st midnattssol 🇸🇪 900 74 22 Sep 2023 541st snoozingnewt 🇺🇸 900 74 23 Sep 2023 541st lambda-abstraction 900 74 21 Oct 2023 541st levavft 900 74 26 Oct 2023 541st Buecherfresser 900 74 22 Nov 2023 Prev 526–600 of 3,078 Next
