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 826th ovs-code 🇩🇪 881 73 22 Jul 2023 827th steffan-polygolf 881 74 14 Feb 2024 828th ravnskjaer 🇩🇰 881 133 11 Sep 2024 829th Shanethegamer 🇺🇸 881 152 9 Sep 2023 829th emgordon154 881 152 2 Oct 2024 829th DialFrost 🇸🇬 881 152 27 Oct 2024 832nd Grrisly 878 74 25 Mar 2024 833rd GrayJoKing 🇦🇺 878 84 19 Jun 2022 833rd primo-ppcg 🇹🇭 878 84 29 Jun 2022 835th dokutan 877 62 28 Apr 2025 836th Shanethegamer 🇺🇸 877 66 4 May 2022 836th scpchicken 🇵🇼 877 66 5 May 2022 836th sisyphus-ppcg 🇦🇺 877 66 6 May 2022 836th Natanaelel 🇸🇪 877 66 15 Jun 2022 836th Z-snails 877 66 27 Feb 2023 836th Jeremy-Stafford 877 66 27 Feb 2023 836th alomiF 877 66 1 Sep 2023 836th btnlq 877 66 17 Oct 2023 836th sean-niemann 🇺🇸 877 66 9 Jan 2025 845th c0d3-4-F00d 🇩🇪 876 61 6 May 2022 845th jackkav 876 61 26 Jun 2022 845th TechNolaByte 876 61 6 Jul 2022 845th Heathcorp 🇦🇺 876 61 17 Jul 2022 845th C0de5mith 🇺🇸 876 61 3 Aug 2022 845th sebipopa 🇷🇴 876 61 18 Aug 2022 845th moikaturns 🇬🇧 876 61 25 Sep 2022 845th FlorianCassayre 🇫🇷 876 61 27 Sep 2022 845th Mazn3k 876 61 1 Feb 2023 845th tvcv901 876 61 22 Mar 2023 845th unfinishedprogram 876 61 19 Jul 2023 845th snoozingnewt 🇺🇸 876 61 23 Sep 2023 845th funnyboy-roks 876 61 9 May 2024 845th bac0id 876 61 29 Jun 2024 845th madex 🇩🇪 876 61 9 Jul 2024 845th cdesodt 876 61 10 Oct 2024 845th RobertHoeh 876 61 5 Apr 2025 845th kirjavascript 876 61 22 days ago 863rd johnnythedoggie 876 72 13 May 2022 864th Shanethegamer 🇺🇸 876 73 19 days ago 865th guilhem-roy 🇫🇷 876 76 5 May 2022 865th NewDefectus 🇮🇱 876 76 6 May 2022 865th CuboidRaptor 🇨🇦 876 76 25 May 2022 865th TheSmilingTurtle 876 76 5 Jun 2022 865th Romain-1 🇫🇷 876 76 8 Jun 2022 865th jhpaques 🇫🇷 876 76 30 Jul 2022 865th chriscianfarani 876 76 10 Aug 2022 865th eshilo-draper 876 76 13 Sep 2022 865th suwat513 876 76 22 Sep 2022 865th Jaydosu 876 76 14 Nov 2022 865th tails618 876 76 2 Dec 2022 865th KevinLyvers 876 76 17 Dec 2022 865th nayakrujul 876 76 3 Jan 2023 865th CheeseCake628 🇳🇴 876 76 8 Jan 2023 865th CatsAreFluffy 876 76 18 Feb 2023 865th adamnielson42 🇺🇸 876 76 1 Mar 2023 865th Schreipfelerer 876 76 9 Apr 2023 865th hm5822 876 76 22 Apr 2023 865th celiendonze 🇨🇭 876 76 5 Jul 2023 865th brochmann 🇸🇪 876 76 13 Aug 2023 865th Command-Master 876 76 2 Oct 2023 865th chartung17 876 76 17 Dec 2023 865th smokestacklightnin 🇺🇸 876 76 10 Jan 2024 865th NickTheEASDude 🇺🇸 876 76 26 Jan 2024 865th yuchuehw 876 76 2 Feb 2024 865th Azearia 876 76 26 Feb 2024 865th tpasfieldERAU 876 76 18 May 2024 865th khavik 876 76 29 May 2024 865th Ythaenagor 876 76 5 Aug 2024 865th martion2007 876 76 9 Aug 2024 865th sjrct 876 76 10 Aug 2024 865th Mathrew2012 876 76 9 Nov 2024 865th kawrei 876 76 23 days ago 898th c0d3-4-F00d 🇩🇪 876 89 5 May 2022 898th TRexOnGit 876 89 16 Feb 2024 898th arcpolaris 876 89 18 Nov 2024 Prev 826–900 of 3,050 Next
