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 Hilbert Curve 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 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 Groovy 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 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 Groovy 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 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 Hilbert Curve 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 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 901st Shanethegamer 🇺🇸 884 152 9 Sep 2023 901st emgordon154 884 152 2 Oct 2024 901st DialFrost 🇸🇬 884 152 27 Oct 2024 904th m-tkach 🇺🇦 883 59 21 Jan 2024 904th GolfingSuccess 🇬🇷 883 59 20 Jan 2025 906th ovs-code 🇩🇪 883 73 22 Jul 2023 907th steffan-polygolf 883 74 14 Feb 2024 908th Irratix 🇳🇱 883 96 4 May 2022 908th MeWhenI 🇻🇦 883 96 1 Jun 2022 908th janbehrens 🇩🇪 883 96 21 Apr 2023 908th Shanethegamer 🇺🇸 883 96 15 May 2023 908th Yewzir 🇧🇪 883 96 11 Nov 2023 908th MateuszPietrzak 🇵🇱 883 96 18 Nov 2023 908th kkoenig 883 96 21 Dec 2023 908th BlankSpruce 883 96 20 Aug 2024 908th fuzzylojik-golf 🇺🇸 883 96 14 Jun 2025 917th Shanethegamer 🇺🇸 882 51 15 May 2023 918th ravnskjaer 🇩🇰 882 133 11 Sep 2024 919th GrayJoKing 🇦🇺 881 60 24 Oct 2024 920th kg583 🇺🇸 881 84 30 Jul 2025 921st johnnythedoggie 880 72 13 May 2022 921st kaascevich 880 72 8 Jul 2025 923rd Shanethegamer 🇺🇸 879 73 8 May 2025 923rd DialFrost 🇸🇬 879 73 3 Jun 2025 923rd edsrzf 🇳🇿 879 73 4 Jul 2025 926th Grrisly 879 74 25 Mar 2024 927th GrayJoKing 🇦🇺 879 84 19 Jun 2022 927th primo-ppcg 🇹🇭 879 84 29 Jun 2022 929th Shanethegamer 🇺🇸 879 142 27 Mar 2025 929th DialFrost 🇸🇬 879 142 28 Mar 2025 929th emgordon154 879 142 10 Apr 2025 932nd primo-ppcg 🇹🇭 879 193 22 days ago 933rd dokutan 878 62 28 Apr 2025 934th c0d3-4-F00d 🇩🇪 877 61 6 May 2022 934th jackkav 877 61 26 Jun 2022 934th TechNolaByte 877 61 6 Jul 2022 934th Heathcorp 🇦🇺 877 61 17 Jul 2022 934th C0de5mith 🇺🇸 877 61 3 Aug 2022 934th sebipopa 🇷🇴 877 61 18 Aug 2022 934th moikaturns 🇬🇧 877 61 25 Sep 2022 934th FlorianCassayre 🇫🇷 877 61 27 Sep 2022 934th Mazn3k 877 61 1 Feb 2023 934th tvcv901 877 61 22 Mar 2023 934th unfinishedprogram 877 61 19 Jul 2023 934th snoozingnewt 🇺🇸 877 61 23 Sep 2023 934th funnyboy-roks 877 61 9 May 2024 934th bac0id 877 61 29 Jun 2024 934th madex 🇩🇪 877 61 9 Jul 2024 934th FortuiteMan 🇫🇷 877 61 10 Oct 2024 934th RobertHoeh 877 61 5 Apr 2025 934th LvLError 877 61 29 May 2025 934th Lv0Sys 🇵🇱 877 61 30 May 2025 934th miles-evan 877 61 5 Aug 2025 954th Shanethegamer 🇺🇸 877 66 4 May 2022 954th scpchicken 🇵🇼 877 66 5 May 2022 954th sisyphus-ppcg 🇦🇺 877 66 6 May 2022 954th Natanaelel 🇸🇪 877 66 15 Jun 2022 954th Z-snails 877 66 27 Feb 2023 954th Jeremy-Stafford 877 66 27 Feb 2023 954th alomiF 877 66 1 Sep 2023 954th btnlq 877 66 17 Oct 2023 962nd guilhem-roy 🇫🇷 877 76 5 May 2022 962nd NewDefectus 🇮🇱 877 76 6 May 2022 962nd CuboidRaptor 🇨🇦 877 76 25 May 2022 962nd TheSmilingTurtle 877 76 5 Jun 2022 962nd Romain-1 🇫🇷 877 76 8 Jun 2022 962nd jhpaques 🇫🇷 877 76 30 Jul 2022 962nd chriscianfarani 877 76 10 Aug 2022 962nd eshilo-draper 877 76 13 Sep 2022 962nd suwat513 877 76 22 Sep 2022 962nd Jaydosu 877 76 14 Nov 2022 962nd tails618 877 76 2 Dec 2022 962nd KevinLyvers 877 76 17 Dec 2022 962nd nayakrujul 877 76 3 Jan 2023 962nd CheeseCake628 🇳🇴 877 76 8 Jan 2023 Prev 901–975 of 3,317 Next