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 901st GrayJoKing 🇦🇺 879 84 19 Jun 2022 901st primo-ppcg 🇹🇭 879 84 29 Jun 2022 903rd Shanethegamer 🇺🇸 879 142 27 Mar 2025 903rd DialFrost 🇸🇬 879 142 28 Mar 2025 903rd emgordon154 879 142 10 Apr 2025 906th dokutan 878 62 28 Apr 2025 907th johnnythedoggie 878 72 13 May 2022 907th kaascevich 878 72 8 Jul 2025 909th Shanethegamer 🇺🇸 878 73 8 May 2025 909th DialFrost 🇸🇬 878 73 3 Jun 2025 909th edsrzf 🇳🇿 878 73 4 Jul 2025 912th Grrisly 878 74 25 Mar 2024 913th primo-ppcg 🇹🇭 878 198 11 Jul 2025 914th Shanethegamer 🇺🇸 877 66 4 May 2022 914th scpchicken 🇵🇼 877 66 5 May 2022 914th sisyphus-ppcg 🇦🇺 877 66 6 May 2022 914th Natanaelel 🇸🇪 877 66 15 Jun 2022 914th Z-snails 877 66 27 Feb 2023 914th Jeremy-Stafford 877 66 27 Feb 2023 914th alomiF 877 66 1 Sep 2023 914th btnlq 877 66 17 Oct 2023 922nd guilhem-roy 🇫🇷 877 76 5 May 2022 922nd NewDefectus 🇮🇱 877 76 6 May 2022 922nd CuboidRaptor 🇨🇦 877 76 25 May 2022 922nd TheSmilingTurtle 877 76 5 Jun 2022 922nd Romain-1 🇫🇷 877 76 8 Jun 2022 922nd jhpaques 🇫🇷 877 76 30 Jul 2022 922nd chriscianfarani 877 76 10 Aug 2022 922nd eshilo-draper 877 76 13 Sep 2022 922nd suwat513 877 76 22 Sep 2022 922nd Jaydosu 877 76 14 Nov 2022 922nd tails618 877 76 2 Dec 2022 922nd KevinLyvers 877 76 17 Dec 2022 922nd nayakrujul 877 76 3 Jan 2023 922nd CheeseCake628 🇳🇴 877 76 8 Jan 2023 922nd CatsAreFluffy 877 76 18 Feb 2023 922nd adamnielson42 🇺🇸 877 76 1 Mar 2023 922nd Schreipfelerer 877 76 9 Apr 2023 922nd hm5822 877 76 22 Apr 2023 922nd celiendonze 🇨🇭 877 76 5 Jul 2023 922nd brochmann 🇸🇪 877 76 13 Aug 2023 922nd Command-Master 877 76 2 Oct 2023 922nd chartung17 877 76 17 Dec 2023 922nd smokestacklightnin 🇺🇸 877 76 10 Jan 2024 922nd NickTheEASDude 🇺🇸 877 76 26 Jan 2024 922nd yuchuehw 877 76 2 Feb 2024 922nd Azearia 877 76 26 Feb 2024 922nd tpasfieldERAU 877 76 18 May 2024 922nd khavik 877 76 29 May 2024 922nd Ythaenagor 877 76 5 Aug 2024 922nd martion2007 877 76 9 Aug 2024 922nd sjrct 877 76 10 Aug 2024 922nd Mathrew2012 877 76 9 Nov 2024 922nd kawrei 877 76 4 May 2025 922nd RaBa21 🇭🇺 877 76 22 days ago 956th c0d3-4-F00d 🇩🇪 876 61 6 May 2022 956th jackkav 876 61 26 Jun 2022 956th TechNolaByte 876 61 6 Jul 2022 956th Heathcorp 🇦🇺 876 61 17 Jul 2022 956th C0de5mith 🇺🇸 876 61 3 Aug 2022 956th sebipopa 🇷🇴 876 61 18 Aug 2022 956th moikaturns 🇬🇧 876 61 25 Sep 2022 956th FlorianCassayre 🇫🇷 876 61 27 Sep 2022 956th Mazn3k 876 61 1 Feb 2023 956th tvcv901 876 61 22 Mar 2023 956th unfinishedprogram 876 61 19 Jul 2023 956th snoozingnewt 🇺🇸 876 61 23 Sep 2023 956th funnyboy-roks 876 61 9 May 2024 956th bac0id 876 61 29 Jun 2024 956th madex 🇩🇪 876 61 9 Jul 2024 956th FortuiteMan 876 61 10 Oct 2024 956th RobertHoeh 876 61 5 Apr 2025 956th LvLError 876 61 29 May 2025 956th Lv0Sys 🇵🇱 876 61 30 May 2025 956th miles-evan 876 61 5 days ago Prev 901–975 of 3,236 Next
