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 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 Topological Sort 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 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 Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 Topological Sort Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 899th edsrzf 🇳🇿 878 73 15 days ago 902nd Grrisly 878 74 25 Mar 2024 903rd primo-ppcg 🇹🇭 878 198 8 days ago 904th Shanethegamer 🇺🇸 877 66 4 May 2022 904th scpchicken 🇵🇼 877 66 5 May 2022 904th sisyphus-ppcg 🇦🇺 877 66 6 May 2022 904th Natanaelel 🇸🇪 877 66 15 Jun 2022 904th Z-snails 877 66 27 Feb 2023 904th Jeremy-Stafford 877 66 27 Feb 2023 904th alomiF 877 66 1 Sep 2023 904th btnlq 877 66 17 Oct 2023 912th guilhem-roy 🇫🇷 877 76 5 May 2022 912th NewDefectus 🇮🇱 877 76 6 May 2022 912th CuboidRaptor 🇨🇦 877 76 25 May 2022 912th TheSmilingTurtle 877 76 5 Jun 2022 912th Romain-1 🇫🇷 877 76 8 Jun 2022 912th jhpaques 🇫🇷 877 76 30 Jul 2022 912th chriscianfarani 877 76 10 Aug 2022 912th eshilo-draper 877 76 13 Sep 2022 912th suwat513 877 76 22 Sep 2022 912th Jaydosu 877 76 14 Nov 2022 912th tails618 877 76 2 Dec 2022 912th KevinLyvers 877 76 17 Dec 2022 912th nayakrujul 877 76 3 Jan 2023 912th CheeseCake628 🇳🇴 877 76 8 Jan 2023 912th CatsAreFluffy 877 76 18 Feb 2023 912th adamnielson42 🇺🇸 877 76 1 Mar 2023 912th Schreipfelerer 877 76 9 Apr 2023 912th hm5822 877 76 22 Apr 2023 912th celiendonze 🇨🇭 877 76 5 Jul 2023 912th brochmann 🇸🇪 877 76 13 Aug 2023 912th Command-Master 877 76 2 Oct 2023 912th chartung17 877 76 17 Dec 2023 912th smokestacklightnin 🇺🇸 877 76 10 Jan 2024 912th NickTheEASDude 🇺🇸 877 76 26 Jan 2024 912th yuchuehw 877 76 2 Feb 2024 912th Azearia 877 76 26 Feb 2024 912th tpasfieldERAU 877 76 18 May 2024 912th khavik 877 76 29 May 2024 912th Ythaenagor 877 76 5 Aug 2024 912th martion2007 877 76 9 Aug 2024 912th sjrct 877 76 10 Aug 2024 912th Mathrew2012 877 76 9 Nov 2024 912th kawrei 877 76 4 May 2025 912th RaBa21 🇭🇺 877 76 10 hours ago 946th c0d3-4-F00d 🇩🇪 876 61 6 May 2022 946th jackkav 876 61 26 Jun 2022 946th TechNolaByte 876 61 6 Jul 2022 946th Heathcorp 🇦🇺 876 61 17 Jul 2022 946th C0de5mith 🇺🇸 876 61 3 Aug 2022 946th sebipopa 🇷🇴 876 61 18 Aug 2022 946th moikaturns 🇬🇧 876 61 25 Sep 2022 946th FlorianCassayre 🇫🇷 876 61 27 Sep 2022 946th Mazn3k 876 61 1 Feb 2023 946th tvcv901 876 61 22 Mar 2023 946th unfinishedprogram 876 61 19 Jul 2023 946th snoozingnewt 🇺🇸 876 61 23 Sep 2023 946th funnyboy-roks 876 61 9 May 2024 946th bac0id 876 61 29 Jun 2024 946th madex 🇩🇪 876 61 9 Jul 2024 946th cdesodt 876 61 10 Oct 2024 946th RobertHoeh 876 61 5 Apr 2025 946th kirjavascript 876 61 4 May 2025 946th LvLError 876 61 29 May 2025 946th Lv0Sys 🇵🇱 876 61 30 May 2025 966th althryenix 875 134 25 Jul 2022 966th MrGagnonHPS 875 134 1 Nov 2023 966th noescareno 875 134 31 May 2025 969th nwellnhof 🇩🇪 874 53 4 May 2022 969th GrayJoKing 🇦🇺 874 53 6 May 2022 971st c0d3-4-F00d 🇩🇪 874 89 5 May 2022 971st fkantelberg 874 89 15 Jul 2023 971st TRexOnGit 874 89 16 Feb 2024 971st arcpolaris 874 89 18 Nov 2024 975th Grrisly 874 114 25 Mar 2024 Prev 901–975 of 3,200 Next
