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 64th emgordon154 963 27 13 Sep 2024 77th Lydxn 🇨🇦 960 49 4 May 2022 77th JayXon 🇺🇸 960 49 17 Oct 2022 77th GrayJoKing 🇦🇺 960 49 15 Nov 2022 77th radarek 🇵🇱 960 49 10 hours ago 81st GrayJoKing 🇦🇺 958 38 5 May 2022 81st MeWhenI 🇻🇦 958 38 4 Mar 2025 83rd antimon2 🇯🇵 957 45 17 Nov 2024 84th DelaneyJM 957 47 7 Apr 2025 84th KevinMarquette 🇺🇸 957 47 7 Apr 2025 84th sean-niemann 🇺🇸 957 47 7 Apr 2025 84th corbob 🇨🇦 957 47 8 Apr 2025 84th jborean93 957 47 9 Apr 2025 84th bitsandbeyond 🇳🇱 957 47 8 Jun 2025 84th DialFrost 🇸🇬 957 47 8 Jun 2025 91st akshatj27 🇦🇶 955 56 4 May 2022 91st didion0 🇺🇸 955 56 5 May 2022 91st NewDefectus 🇮🇱 955 56 6 May 2022 91st lynn 955 56 6 May 2022 91st uttumuttu 🇫🇮 955 56 24 May 2022 91st jared-hughes 955 56 6 Jul 2022 91st 051 🇸🇬 955 56 8 Aug 2022 91st BambooleanLogic 🇸🇪 955 56 12 Oct 2022 91st makinde 955 56 21 Oct 2022 91st DialFrost 🇸🇬 955 56 14 Nov 2022 91st AlephSquirrel 955 56 15 Feb 2023 91st dmrichwa 🇺🇸 955 56 10 Jul 2023 91st tayloia 🇬🇧 955 56 10 Jul 2023 91st Argeento 🇵🇱 955 56 25 Aug 2023 91st weliveinhell 🇭🇹 955 56 2 Oct 2023 91st coreynash 955 56 6 Oct 2023 91st dylanarmstrong 955 56 10 Dec 2023 91st two-bad 🇬🇧 955 56 23 Feb 2024 91st mehbark 955 56 27 Jul 2024 91st madeforlosers 955 56 4 Nov 2024 91st XenThe 🇬🇧 955 56 6 Jun 2025 112th primo-ppcg 🇹🇭 954 41 5 May 2022 113th 2bular 952 32 17 Oct 2024 114th MichalMarsalek 🇨🇿 952 70 5 May 2022 114th primo-ppcg 🇹🇭 952 70 5 May 2022 114th SirBogman 🇺🇸 952 70 5 May 2022 114th prplz 🇦🇺 952 70 5 May 2022 114th Irratix 🇳🇱 952 70 7 May 2022 114th rak1507 🇬🇧 952 70 7 May 2022 114th inventshah 952 70 9 May 2022 114th k3w1k0d3r 952 70 22 Jun 2022 114th ZakkkkAttackkkk 🇵🇭 952 70 14 Jul 2022 114th Bonjour27891 🇻🇳 952 70 14 Jul 2022 114th OllieBoyne 🇬🇧 952 70 19 Jul 2022 114th bricknellj 952 70 25 Jul 2022 114th wen1now 952 70 8 Aug 2022 114th 051 🇸🇬 952 70 8 Aug 2022 114th Sp3000 🇦🇺 952 70 8 Aug 2022 114th betaveros 952 70 9 Aug 2022 114th shelerr 952 70 9 Sep 2022 114th stewSquared 🇺🇸 952 70 27 Sep 2022 114th orthoplex 🇨🇽 952 70 9 Oct 2022 114th 5quiwyrm 952 70 19 Oct 2022 114th myfatemi04 952 70 4 Nov 2022 114th kevinmchung 952 70 4 Nov 2022 114th FlorianCassayre 🇫🇷 952 70 7 Nov 2022 114th fourth-bit 952 70 29 Nov 2022 114th QuincyNash 🇺🇸 952 70 29 Nov 2022 114th aksyristos 952 70 25 Dec 2022 114th thizanne 952 70 27 Dec 2022 114th Alex-x90 🇺🇸 952 70 20 Jan 2023 114th bob-th 952 70 24 Jan 2023 114th SirFireball3521 952 70 25 Jan 2023 114th stefangimmillaro 952 70 6 Feb 2023 114th Seek64 🇩🇪 952 70 7 Feb 2023 114th FieryIceStickie 952 70 3 Apr 2023 114th MeWhenI 🇻🇦 952 70 30 Apr 2023 114th fgrosshans 🇫🇷 952 70 5 May 2023 114th Shanethegamer 🇺🇸 952 70 25 May 2023 114th InigoK 🇺🇸 952 70 14 Jun 2023 Prev 76–150 of 3,281 Next
