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 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 Topological Sort 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 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 Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 Topological Sort Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 225th clockworknazo 938 58 15 Nov 2022 225th Lydxn 🇨🇦 938 58 7 Feb 2023 225th xsot 🇸🇬 938 58 28 Jun 2024 225th Salutations45 938 58 18 Dec 2024 230th TFeld00 🇩🇰 938 71 17 May 2022 230th DialFrost 🇸🇬 938 71 15 Nov 2022 230th StefanHabel 🇨🇦 938 71 29 Nov 2022 230th nstearns96 🇬🇧 938 71 11 Jan 2023 230th hallvabo 🇳🇴 938 71 7 Feb 2023 230th anter69 🇭🇺 938 71 21 May 2024 230th rucin93 🇵🇱 938 71 10 Jul 2024 237th Irratix 🇳🇱 938 83 4 May 2022 237th nwellnhof 🇩🇪 938 83 4 May 2022 237th ScottHamper 938 83 5 May 2022 237th Romain-1 🇫🇷 938 83 1 Jun 2022 237th Gaddy 🇫🇷 938 83 1 Jun 2022 237th 5quiwyrm 938 83 4 Sep 2022 237th Betuaredead 938 83 5 Jan 2023 237th Yewzir 🇧🇪 938 83 12 Feb 2023 237th btnlq 938 83 9 Mar 2023 237th Adix-null 🇱🇹 938 83 17 May 2023 237th AdrienHache 🇫🇷 938 83 8 Jun 2023 237th gblikas 938 83 23 Jul 2023 237th KrausRaus 🇺🇸 938 83 31 Jul 2023 237th namelessiw 938 83 9 Apr 2025 237th dokutan 938 83 9 Apr 2025 237th m-tkach 🇺🇦 938 83 10 Apr 2025 237th DialFrost 🇸🇬 938 83 10 Apr 2025 237th Pecanolith 938 83 19 Apr 2025 237th Tyrant7 938 83 19 Apr 2025 237th Yax42 🇫🇷 938 83 19 Apr 2025 237th MeWhenI 🇻🇦 938 83 21 days ago 237th sean-niemann 🇺🇸 938 83 21 days ago 237th stefangimmillaro 938 83 21 days ago 260th Lydxn 🇨🇦 938 125 6 May 2022 260th JayXon 🇺🇸 938 125 9 May 2022 262nd grey0ut 937 48 8 Apr 2025 263rd GolfingSuccess 🇬🇷 937 49 12 Aug 2024 263rd Shanethegamer 🇺🇸 937 49 12 Aug 2024 263rd Steffan153 🇫🇮 937 49 12 Aug 2024 263rd MeWhenI 🇻🇦 937 49 13 Aug 2024 263rd DialFrost 🇸🇬 937 49 13 Aug 2024 263rd GrayJoKing 🇦🇺 937 49 15 Aug 2024 263rd btnlq 937 49 16 Aug 2024 263rd emgordon154 937 49 19 Aug 2024 263rd ovs-code 🇩🇪 937 49 19 Aug 2024 263rd mousetail 🇳🇱 937 49 13 Sep 2024 263rd lynn 937 49 20 Dec 2024 263rd weeble 937 49 20 Dec 2024 263rd sean-niemann 🇺🇸 937 49 11 Jan 2025 276th emplv 🇱🇻 932 60 5 May 2022 276th GrayJoKing 🇦🇺 932 60 6 May 2022 276th targrik 932 60 24 Dec 2024 276th xsot 🇸🇬 932 60 1 May 2025 280th nwellnhof 🇩🇪 931 42 4 May 2022 280th Lydxn 🇨🇦 931 42 4 May 2022 280th GrayJoKing 🇦🇺 931 42 4 May 2022 280th Steffan153 🇫🇮 931 42 16 Dec 2022 280th sisyphus-ppcg 🇦🇺 931 42 31 Jan 2023 280th ovs-code 🇩🇪 931 42 30 Dec 2023 280th sean-niemann 🇺🇸 931 42 8 Mar 2025 287th m-tkach 🇺🇦 931 91 5 May 2022 287th 09cf 931 91 4 Oct 2023 289th GrayJoKing 🇦🇺 930 56 15 Jan 2024 289th AlephSquirrel 930 56 21 Jan 2024 291st stefangimmillaro 930 126 4 May 2022 291st Irratix 🇳🇱 930 126 4 May 2022 291st MeWhenI 🇻🇦 930 126 4 May 2022 291st janbehrens 🇩🇪 930 126 4 May 2022 291st shellbertt 🇨🇦 930 126 4 May 2022 291st inventshah 930 126 4 May 2022 291st m-tkach 🇺🇦 930 126 4 May 2022 291st sean-niemann 🇺🇸 930 126 4 May 2022 291st nwellnhof 🇩🇪 930 126 4 May 2022 291st Shanethegamer 🇺🇸 930 126 4 May 2022 Prev 226–300 of 3,184 Next