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 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 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 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 QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 733rd hellwue 888 75 15 Feb 2023 733rd nandanjp 888 75 29 Mar 2023 733rd kaptsanovb 888 75 20 Apr 2023 733rd galloj 🇨🇿 888 75 20 May 2023 733rd jhu04 888 75 23 Jun 2023 733rd HelloYuiYui 888 75 1 Nov 2023 733rd tobyLovick 888 75 10 Nov 2023 733rd VictorStenvers 🇳🇱 888 75 13 Nov 2023 733rd RZ781 888 75 19 Nov 2023 733rd mikehanus 888 75 21 Nov 2023 733rd 1231234md5 🇨🇳 888 75 14 Dec 2023 733rd Hebelub 888 75 6 Jan 2024 733rd minhtrancccp 888 75 11 Jan 2024 733rd 123mjb 888 75 25 Jan 2024 733rd jbjd 888 75 25 Feb 2024 733rd gabe-gallegos 888 75 2 May 2024 733rd kejcao 🇨🇦 888 75 11 May 2024 733rd f-tucker 888 75 24 May 2024 733rd Florian-Mt 888 75 22 Jul 2024 733rd codingisgreatbutiamnot 888 75 9 Aug 2024 733rd Terobero 888 75 23 Aug 2024 733rd abhishekg999 888 75 17 Sep 2024 733rd RedzGoose 🇦🇺 888 75 7 Oct 2024 733rd Clay-Goodling 888 75 8 Oct 2024 733rd JunkIce 888 75 5 Mar 2025 776th canissimia 🇦🇶 888 204 25 Nov 2023 777th c0d3-4-F00d 🇩🇪 887 132 6 May 2022 777th madeforlosers 887 132 26 Oct 2023 777th Blockyheadman 887 132 1 Nov 2023 777th SpiritAxolotl 🇺🇸 887 132 20 Mar 2024 781st ovs-code 🇩🇪 887 151 9 Sep 2023 781st Yewzir 🇧🇪 887 151 21 May 2024 783rd MeWhenI 🇻🇦 886 53 1 Jun 2022 783rd stefangimmillaro 886 53 2 Oct 2022 783rd Haksell 🇦🇶 886 53 22 Feb 2023 786th m-tkach 🇺🇦 885 117 7 May 2022 786th Lydxn 🇨🇦 885 117 7 May 2022 788th GolfingSuccess 🇬🇷 884 71 5 May 2022 788th emplv 🇱🇻 884 71 5 May 2022 788th JayXon 🇺🇸 884 71 7 May 2022 788th nwellnhof 🇩🇪 884 71 5 Jun 2022 788th stefangimmillaro 884 71 2 Jun 2023 788th catfish000 884 71 4 Oct 2023 788th kkoenig 884 71 21 Dec 2023 788th sean-niemann 🇺🇸 884 71 10 Jul 2024 788th masinag 🇮🇹 884 71 6 Oct 2024 788th KasperKivimaeki 🇫🇮 884 71 27 Mar 2025 798th janbehrens 🇩🇪 884 90 21 Apr 2023 798th Yewzir 🇧🇪 884 90 22 Apr 2023 798th DialFrost 🇸🇬 884 90 6 Nov 2023 798th Ripick 884 90 27 Nov 2024 802nd jared-hughes 884 130 15 Dec 2024 803rd m-tkach 🇺🇦 883 113 15 Jan 2025 804th m-tkach 🇺🇦 882 59 21 Jan 2024 804th GolfingSuccess 🇬🇷 882 59 20 Jan 2025 806th Shanethegamer 🇺🇸 882 70 12 Dec 2022 806th Alessandro-Balconi 🇮🇹 882 70 26 Dec 2022 808th primo-ppcg 🇹🇭 882 85 14 Jan 2025 808th MeWhenI 🇻🇦 882 85 21 Apr 2025 810th nipzu 882 94 17 May 2022 810th Natanaelel 🇸🇪 882 94 17 Jun 2022 810th nkoppel 882 94 19 Oct 2022 810th ovs-code 🇩🇪 882 94 21 Jun 2023 810th mousetail 🇳🇱 882 94 12 Jan 2024 810th sean-niemann 🇺🇸 882 94 13 Oct 2024 816th Irratix 🇳🇱 882 96 4 May 2022 816th MeWhenI 🇻🇦 882 96 1 Jun 2022 816th janbehrens 🇩🇪 882 96 21 Apr 2023 816th Shanethegamer 🇺🇸 882 96 15 May 2023 816th Yewzir 🇧🇪 882 96 11 Nov 2023 816th MateuszPietrzak 🇵🇱 882 96 18 Nov 2023 816th kkoenig 882 96 21 Dec 2023 816th sean-niemann 🇺🇸 882 96 10 Jul 2024 816th BlankSpruce 882 96 20 Aug 2024 825th Shanethegamer 🇺🇸 881 51 15 May 2023 Prev 751–825 of 3,054 Next