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 450th JayXon 🇺🇸 914 87 15 May 2023 450th Steffan153 🇫🇮 914 87 16 May 2023 450th Lydxn 🇨🇦 914 87 16 May 2023 450th GrayJoKing 🇦🇺 914 87 11 Aug 2023 450th sean-niemann 🇺🇸 914 87 11 Jul 2024 456th AdamHe17 913 73 31 May 2022 456th AliceFord 913 73 2 Jun 2022 456th Natanaelel 🇸🇪 913 73 16 Jun 2022 456th btjones0 913 73 21 Jun 2022 456th marcin7Cd 913 73 27 Jun 2022 456th tri1212 🇻🇳 913 73 18 Jul 2022 456th vhoulbreque 🇫🇷 913 73 18 Aug 2022 456th KatieLG 🇬🇧 913 73 29 Aug 2022 456th tkr-sh 🇫🇷 913 73 8 Sep 2022 456th jroscoe5 913 73 15 Sep 2022 456th fredrik-bakke 🇳🇴 913 73 18 Sep 2022 456th firegene 🇮🇪 913 73 27 Sep 2022 456th OhmNomNom 913 73 7 Oct 2022 456th 0-4849 913 73 1 Nov 2022 456th M0PKOBKA 913 73 19 Dec 2022 456th calumacutt 913 73 19 Dec 2022 456th thehylian 913 73 2 Jan 2023 456th fynnkroeger 913 73 6 Jan 2023 456th shellbertt 🇨🇦 913 73 13 Jan 2023 456th hunt-g 913 73 4 Feb 2023 456th ljweel 913 73 13 Feb 2023 456th jmerle 🇳🇱 913 73 16 Feb 2023 456th TaserTheFox 🇺🇸 913 73 14 Mar 2023 456th pinguicula 913 73 6 Apr 2023 456th TheoKeller1 913 73 11 Jun 2023 456th fkantelberg 913 73 16 Jul 2023 456th Mikey-Beep 🇬🇧 913 73 31 Aug 2023 456th eiburns 913 73 9 Oct 2023 456th htareque 913 73 13 Oct 2023 456th wearsunscreen 913 73 18 Oct 2023 456th bzijlema 🇳🇱 913 73 25 Oct 2023 456th Grrisly 913 73 10 Nov 2023 456th m42km 913 73 11 Nov 2023 456th GeneralPoxter 913 73 7 Dec 2023 456th logvp 913 73 12 Jan 2024 456th JoaoFelipe3 913 73 13 Jan 2024 456th ehulinsky 🇺🇸 913 73 16 Feb 2024 456th Lewenhaupt 913 73 23 Feb 2024 456th Yewzir 🇧🇪 913 73 5 Apr 2024 456th stertooy 🇧🇪 913 73 9 Jun 2024 456th cuboids 913 73 11 Jul 2024 456th jipsong 🇩🇪 913 73 23 Jul 2024 456th mattyhempstead 913 73 6 Oct 2024 456th wh3n3v3r 🇨🇿 913 73 18 Nov 2024 456th klixel 🇨🇦 913 73 18 Nov 2024 456th tjwrenn 913 73 10 Dec 2024 456th nullie 913 73 19 Dec 2024 456th ryyyn 🇺🇸 913 73 7 Jan 2025 456th maxgodfrey2004 🇨🇦 913 73 13 Feb 2025 456th lolgeny 913 73 22 Feb 2025 456th andrewjc2000 913 73 23 Feb 2025 456th Languag3 913 73 27 Feb 2025 456th Bulmenisaurus 913 73 2 Mar 2025 456th souta-1326 913 73 1 Apr 2025 456th BenjaminHGong 913 73 26 May 2025 456th FEZfan 🇦🇺 913 73 11 Jul 2025 456th wuduculfre 913 73 28 Jul 2025 456th BREMAUCY 🇫🇷 913 73 24 Aug 2025 514th ovs-code 🇩🇪 913 75 12 Sep 2024 514th Kacarott 🇦🇺 913 75 13 Sep 2024 516th Lydxn 🇨🇦 913 81 1 Apr 2023 517th andersk 🇺🇸 913 91 25 Oct 2022 517th Super-Pizza 🇨🇦 913 91 4 Dec 2022 517th klixel 🇨🇦 913 91 20 May 2023 517th lynn 913 91 6 Jul 2024 517th edsrzf 🇳🇿 913 91 29 Nov 2024 517th DialFrost 🇸🇬 913 91 7 Apr 2025 523rd lynn 912 78 5 May 2022 524th nai62 911 69 27 Aug 2022 525th GrayJoKing 🇦🇺 911 71 10 Aug 2023 Prev 451–525 of 3,332 Next
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