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 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 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 QR Encoder Quadratic Formula Scrambled Alphabetization 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 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 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 QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 218th ovs-code 🇩🇪 937 49 19 Aug 2024 218th mousetail 🇳🇱 937 49 13 Sep 2024 218th lynn 937 49 20 Dec 2024 218th weeble 937 49 20 Dec 2024 218th sean-niemann 🇺🇸 937 49 11 Jan 2025 231st inventshah 937 57 4 May 2022 231st itsh01 937 57 17 May 2022 231st Natanaelel 🇸🇪 937 57 16 Jun 2022 231st Attero 🇸🇪 937 57 3 Aug 2022 231st SirFireball3521 937 57 26 Jan 2023 231st Kacarott 🇦🇺 937 57 24 Mar 2023 231st nathanadams 🇳🇿 937 57 24 Apr 2023 231st hacker112 🇸🇪 937 57 20 Jun 2024 231st thisishowmymindworks 🇳🇴 937 57 28 Jun 2024 231st helbling 🇨🇭 937 57 26 Jul 2024 231st Salutations45 937 57 18 Nov 2024 242nd Lydxn 🇨🇦 937 125 6 May 2022 242nd JayXon 🇺🇸 937 125 9 May 2022 244th grey0ut 936 48 22 days ago 245th emplv 🇱🇻 932 60 5 May 2022 245th GrayJoKing 🇦🇺 932 60 6 May 2022 245th targrik 932 60 24 Dec 2024 245th xsot 🇸🇬 932 60 5 hours ago 249th nwellnhof 🇩🇪 931 42 4 May 2022 249th Lydxn 🇨🇦 931 42 4 May 2022 249th GrayJoKing 🇦🇺 931 42 4 May 2022 249th Steffan153 🇫🇮 931 42 16 Dec 2022 249th sisyphus-ppcg 🇦🇺 931 42 31 Jan 2023 249th ovs-code 🇩🇪 931 42 30 Dec 2023 249th sean-niemann 🇺🇸 931 42 8 Mar 2025 256th stefangimmillaro 930 126 4 May 2022 256th Irratix 🇳🇱 930 126 4 May 2022 256th MeWhenI 🇻🇦 930 126 4 May 2022 256th janbehrens 🇩🇪 930 126 4 May 2022 256th shellbertt 🇨🇦 930 126 4 May 2022 256th inventshah 930 126 4 May 2022 256th m-tkach 🇺🇦 930 126 4 May 2022 256th sean-niemann 🇺🇸 930 126 4 May 2022 256th nwellnhof 🇩🇪 930 126 4 May 2022 256th Shanethegamer 🇺🇸 930 126 4 May 2022 256th ScottHamper 930 126 5 May 2022 256th ovs-code 🇩🇪 930 126 5 May 2022 256th 5quiwyrm 930 126 4 Sep 2022 256th KrausRaus 🇺🇸 930 126 9 Sep 2022 256th Betuaredead 930 126 5 Jan 2023 256th annaproxy 930 126 7 Jan 2023 256th Yewzir 🇧🇪 930 126 12 Feb 2023 256th Jacob385 930 126 4 Mar 2024 256th dokutan 930 126 17 Mar 2024 256th eMGeeneer 930 126 15 Jun 2024 256th mrondon8 930 126 2 Dec 2024 277th Natanaelel 🇸🇪 929 28 22 Jul 2022 277th SirBogman 🇺🇸 929 28 17 Sep 2022 279th GrayJoKing 🇦🇺 929 56 15 Jan 2024 279th AlephSquirrel 929 56 21 Jan 2024 281st m-tkach 🇺🇦 929 91 5 May 2022 281st catfish000 929 91 4 Oct 2023 283rd ovs-code 🇩🇪 928 60 9 Oct 2023 283rd GrayJoKing 🇦🇺 928 60 11 Oct 2023 283rd Lydxn 🇨🇦 928 60 11 Oct 2023 283rd GolfingSuccess 🇬🇷 928 60 16 Nov 2023 283rd Steffan153 🇫🇮 928 60 28 Jan 2024 283rd JayXon 🇺🇸 928 60 29 Jan 2024 283rd rucin93 🇵🇱 928 60 10 Jul 2024 283rd sean-niemann 🇺🇸 928 60 10 Jul 2024 291st MeWhenI 🇻🇦 928 68 23 Feb 2023 291st JayXon 🇺🇸 928 68 4 Mar 2025 293rd GrayJoKing 🇦🇺 928 70 13 Jul 2024 293rd FlyingPenguin223 928 70 4 Oct 2024 293rd jipsong 🇩🇪 928 70 26 days ago 296th Shanethegamer 🇺🇸 928 84 21 days ago 296th HumanoidCPU 928 84 21 days ago 296th stefangimmillaro 928 84 21 days ago 296th sean-niemann 🇺🇸 928 84 21 days ago 296th annaproxy 928 84 19 days ago Prev 226–300 of 3,000 Next