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 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 Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula 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 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 Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 821st MateuszPietrzak 🇵🇱 882 96 18 Nov 2023 821st kkoenig 882 96 21 Dec 2023 821st sean-niemann 🇺🇸 882 96 10 Jul 2024 821st BlankSpruce 882 96 20 Aug 2024 830th GrayJoKing 🇦🇺 881 60 24 Oct 2024 831st ovs-code 🇩🇪 881 73 22 Jul 2023 832nd steffan-polygolf 881 74 14 Feb 2024 833rd ravnskjaer 🇩🇰 881 133 11 Sep 2024 834th Shanethegamer 🇺🇸 881 152 9 Sep 2023 834th emgordon154 881 152 2 Oct 2024 834th DialFrost 🇸🇬 881 152 27 Oct 2024 837th Grrisly 878 74 25 Mar 2024 838th GrayJoKing 🇦🇺 878 84 19 Jun 2022 838th primo-ppcg 🇹🇭 878 84 29 Jun 2022 840th dokutan 877 62 28 Apr 2025 841st Shanethegamer 🇺🇸 877 66 4 May 2022 841st scpchicken 🇵🇼 877 66 5 May 2022 841st sisyphus-ppcg 🇦🇺 877 66 6 May 2022 841st Natanaelel 🇸🇪 877 66 15 Jun 2022 841st Z-snails 877 66 27 Feb 2023 841st Jeremy-Stafford 877 66 27 Feb 2023 841st alomiF 877 66 1 Sep 2023 841st btnlq 877 66 17 Oct 2023 841st sean-niemann 🇺🇸 877 66 9 Jan 2025 850th Shanethegamer 🇺🇸 877 73 26 days ago 851st c0d3-4-F00d 🇩🇪 877 89 5 May 2022 851st TRexOnGit 877 89 16 Feb 2024 851st arcpolaris 877 89 18 Nov 2024 854th c0d3-4-F00d 🇩🇪 876 61 6 May 2022 854th jackkav 876 61 26 Jun 2022 854th TechNolaByte 876 61 6 Jul 2022 854th Heathcorp 🇦🇺 876 61 17 Jul 2022 854th C0de5mith 🇺🇸 876 61 3 Aug 2022 854th sebipopa 🇷🇴 876 61 18 Aug 2022 854th moikaturns 🇬🇧 876 61 25 Sep 2022 854th FlorianCassayre 🇫🇷 876 61 27 Sep 2022 854th Mazn3k 876 61 1 Feb 2023 854th tvcv901 876 61 22 Mar 2023 854th unfinishedprogram 876 61 19 Jul 2023 854th snoozingnewt 🇺🇸 876 61 23 Sep 2023 854th funnyboy-roks 876 61 9 May 2024 854th bac0id 876 61 29 Jun 2024 854th madex 🇩🇪 876 61 9 Jul 2024 854th cdesodt 876 61 10 Oct 2024 854th RobertHoeh 876 61 5 Apr 2025 854th kirjavascript 876 61 4 May 2025 854th LvLError 876 61 4 days ago 854th Lv0Sys 🇵🇱 876 61 4 days ago 854th Protothor 876 61 3 days ago 875th johnnythedoggie 876 72 13 May 2022 876th guilhem-roy 🇫🇷 876 76 5 May 2022 876th NewDefectus 🇮🇱 876 76 6 May 2022 876th CuboidRaptor 🇨🇦 876 76 25 May 2022 876th TheSmilingTurtle 876 76 5 Jun 2022 876th Romain-1 🇫🇷 876 76 8 Jun 2022 876th jhpaques 🇫🇷 876 76 30 Jul 2022 876th chriscianfarani 876 76 10 Aug 2022 876th eshilo-draper 876 76 13 Sep 2022 876th suwat513 876 76 22 Sep 2022 876th Jaydosu 876 76 14 Nov 2022 876th tails618 876 76 2 Dec 2022 876th KevinLyvers 876 76 17 Dec 2022 876th nayakrujul 876 76 3 Jan 2023 876th CheeseCake628 🇳🇴 876 76 8 Jan 2023 876th CatsAreFluffy 876 76 18 Feb 2023 876th adamnielson42 🇺🇸 876 76 1 Mar 2023 876th Schreipfelerer 876 76 9 Apr 2023 876th hm5822 876 76 22 Apr 2023 876th celiendonze 🇨🇭 876 76 5 Jul 2023 876th brochmann 🇸🇪 876 76 13 Aug 2023 876th Command-Master 876 76 2 Oct 2023 876th chartung17 876 76 17 Dec 2023 876th smokestacklightnin 🇺🇸 876 76 10 Jan 2024 876th NickTheEASDude 🇺🇸 876 76 26 Jan 2024 876th yuchuehw 876 76 2 Feb 2024 Prev 826–900 of 3,077 Next
