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 824th DialFrost 🇸🇬 881 152 27 Oct 2024 827th jared-hughes 879 130 15 Dec 2024 828th Grrisly 878 74 25 Mar 2024 829th GrayJoKing 🇦🇺 878 84 19 Jun 2022 829th primo-ppcg 🇹🇭 878 84 29 Jun 2022 831st dokutan 877 62 8 days ago 832nd Shanethegamer 🇺🇸 877 66 4 May 2022 832nd scpchicken 🇵🇼 877 66 5 May 2022 832nd sisyphus-ppcg 🇦🇺 877 66 6 May 2022 832nd Natanaelel 🇸🇪 877 66 15 Jun 2022 832nd Z-snails 877 66 27 Feb 2023 832nd Jeremy-Stafford 877 66 27 Feb 2023 832nd alomiF 877 66 1 Sep 2023 832nd btnlq 877 66 17 Oct 2023 832nd sean-niemann 🇺🇸 877 66 9 Jan 2025 841st c0d3-4-F00d 🇩🇪 876 61 6 May 2022 841st jackkav 876 61 26 Jun 2022 841st TechNolaByte 876 61 6 Jul 2022 841st Heathcorp 🇦🇺 876 61 17 Jul 2022 841st C0de5mith 🇺🇸 876 61 3 Aug 2022 841st sebipopa 🇷🇴 876 61 18 Aug 2022 841st moikaturns 🇬🇧 876 61 25 Sep 2022 841st FlorianCassayre 🇫🇷 876 61 27 Sep 2022 841st Mazn3k 876 61 1 Feb 2023 841st tvcv901 876 61 22 Mar 2023 841st unfinishedprogram 876 61 19 Jul 2023 841st snoozingnewt 🇺🇸 876 61 23 Sep 2023 841st funnyboy-roks 876 61 9 May 2024 841st bac0id 876 61 29 Jun 2024 841st madex 🇩🇪 876 61 9 Jul 2024 841st cdesodt 876 61 10 Oct 2024 841st RobertHoeh 876 61 5 Apr 2025 841st kirjavascript 876 61 2 days ago 859th johnnythedoggie 876 72 13 May 2022 860th guilhem-roy 🇫🇷 876 76 5 May 2022 860th NewDefectus 🇮🇱 876 76 6 May 2022 860th CuboidRaptor 🇨🇦 876 76 25 May 2022 860th TheSmilingTurtle 876 76 5 Jun 2022 860th Romain-1 🇫🇷 876 76 8 Jun 2022 860th jhpaques 🇫🇷 876 76 30 Jul 2022 860th chriscianfarani 876 76 10 Aug 2022 860th eshilo-draper 876 76 13 Sep 2022 860th suwat513 876 76 22 Sep 2022 860th Jaydosu 876 76 14 Nov 2022 860th tails618 876 76 2 Dec 2022 860th KevinLyvers 876 76 17 Dec 2022 860th nayakrujul 876 76 3 Jan 2023 860th CheeseCake628 🇳🇴 876 76 8 Jan 2023 860th CatsAreFluffy 876 76 18 Feb 2023 860th adamnielson42 🇺🇸 876 76 1 Mar 2023 860th Schreipfelerer 876 76 9 Apr 2023 860th hm5822 876 76 22 Apr 2023 860th celiendonze 🇨🇭 876 76 5 Jul 2023 860th brochmann 🇸🇪 876 76 13 Aug 2023 860th Command-Master 876 76 2 Oct 2023 860th chartung17 876 76 17 Dec 2023 860th smokestacklightnin 🇺🇸 876 76 10 Jan 2024 860th NickTheEASDude 🇺🇸 876 76 26 Jan 2024 860th yuchuehw 876 76 2 Feb 2024 860th Azearia 876 76 26 Feb 2024 860th tpasfieldERAU 876 76 18 May 2024 860th khavik 876 76 29 May 2024 860th Ythaenagor 876 76 5 Aug 2024 860th martion2007 876 76 9 Aug 2024 860th sjrct 876 76 10 Aug 2024 860th Mathrew2012 876 76 9 Nov 2024 860th kawrei 876 76 2 days ago 893rd c0d3-4-F00d 🇩🇪 876 89 5 May 2022 893rd TRexOnGit 876 89 16 Feb 2024 893rd arcpolaris 876 89 18 Nov 2024 896th Shanethegamer 🇺🇸 876 142 27 Mar 2025 896th DialFrost 🇸🇬 876 142 28 Mar 2025 896th emgordon154 876 142 26 days ago 899th nwellnhof 🇩🇪 874 53 4 May 2022 899th GrayJoKing 🇦🇺 874 53 6 May 2022 Prev 826–900 of 3,031 Next
