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 Topological Sort 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 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 Knight Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka 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 Knight Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka 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 Topological Sort 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 Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 893rd fuzzylojik-golf 🇺🇸 882 96 14 Jun 2025 902nd ravnskjaer 🇩🇰 882 133 11 Sep 2024 903rd GrayJoKing 🇦🇺 881 60 24 Oct 2024 904th kg583 🇺🇸 881 84 20 days ago 905th Shanethegamer 🇺🇸 879 73 8 May 2025 905th DialFrost 🇸🇬 879 73 3 Jun 2025 905th edsrzf 🇳🇿 879 73 4 Jul 2025 908th Grrisly 879 74 25 Mar 2024 909th GrayJoKing 🇦🇺 879 84 19 Jun 2022 909th primo-ppcg 🇹🇭 879 84 29 Jun 2022 911th Shanethegamer 🇺🇸 879 142 27 Mar 2025 911th DialFrost 🇸🇬 879 142 28 Mar 2025 911th emgordon154 879 142 10 Apr 2025 914th primo-ppcg 🇹🇭 879 193 5 days ago 915th dokutan 878 62 28 Apr 2025 916th johnnythedoggie 878 72 13 May 2022 916th kaascevich 878 72 8 Jul 2025 918th Shanethegamer 🇺🇸 877 66 4 May 2022 918th scpchicken 🇵🇼 877 66 5 May 2022 918th sisyphus-ppcg 🇦🇺 877 66 6 May 2022 918th Natanaelel 🇸🇪 877 66 15 Jun 2022 918th Z-snails 877 66 27 Feb 2023 918th Jeremy-Stafford 877 66 27 Feb 2023 918th alomiF 877 66 1 Sep 2023 918th btnlq 877 66 17 Oct 2023 926th guilhem-roy 🇫🇷 877 76 5 May 2022 926th NewDefectus 🇮🇱 877 76 6 May 2022 926th CuboidRaptor 🇨🇦 877 76 25 May 2022 926th TheSmilingTurtle 877 76 5 Jun 2022 926th Romain-1 🇫🇷 877 76 8 Jun 2022 926th jhpaques 🇫🇷 877 76 30 Jul 2022 926th chriscianfarani 877 76 10 Aug 2022 926th eshilo-draper 877 76 13 Sep 2022 926th suwat513 877 76 22 Sep 2022 926th Jaydosu 877 76 14 Nov 2022 926th tails618 877 76 2 Dec 2022 926th KevinLyvers 877 76 17 Dec 2022 926th nayakrujul 877 76 3 Jan 2023 926th CheeseCake628 🇳🇴 877 76 8 Jan 2023 926th CatsAreFluffy 877 76 18 Feb 2023 926th adamnielson42 🇺🇸 877 76 1 Mar 2023 926th Schreipfelerer 877 76 9 Apr 2023 926th hm5822 877 76 22 Apr 2023 926th celiendonze 🇨🇭 877 76 5 Jul 2023 926th brochmann 🇸🇪 877 76 13 Aug 2023 926th Command-Master 877 76 2 Oct 2023 926th chartung17 877 76 17 Dec 2023 926th smokestacklightnin 🇺🇸 877 76 10 Jan 2024 926th NickTheEASDude 🇺🇸 877 76 26 Jan 2024 926th yuchuehw 877 76 2 Feb 2024 926th Azearia 877 76 26 Feb 2024 926th tpasfieldERAU 877 76 18 May 2024 926th khavik 877 76 29 May 2024 926th Ythaenagor 877 76 5 Aug 2024 926th martion2007 877 76 9 Aug 2024 926th sjrct 877 76 10 Aug 2024 926th Mathrew2012 877 76 9 Nov 2024 926th kawrei 877 76 4 May 2025 926th RaBa21 🇭🇺 877 76 19 Jul 2025 960th c0d3-4-F00d 🇩🇪 876 61 6 May 2022 960th jackkav 876 61 26 Jun 2022 960th TechNolaByte 876 61 6 Jul 2022 960th Heathcorp 🇦🇺 876 61 17 Jul 2022 960th C0de5mith 🇺🇸 876 61 3 Aug 2022 960th sebipopa 🇷🇴 876 61 18 Aug 2022 960th moikaturns 🇬🇧 876 61 25 Sep 2022 960th FlorianCassayre 🇫🇷 876 61 27 Sep 2022 960th Mazn3k 876 61 1 Feb 2023 960th tvcv901 876 61 22 Mar 2023 960th unfinishedprogram 876 61 19 Jul 2023 960th snoozingnewt 🇺🇸 876 61 23 Sep 2023 960th funnyboy-roks 876 61 9 May 2024 960th bac0id 876 61 29 Jun 2024 960th madex 🇩🇪 876 61 9 Jul 2024 960th FortuiteMan 876 61 10 Oct 2024 Prev 901–975 of 3,272 Next
