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 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 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 QR Encoder Quadratic Formula Scrambled Alphabetization 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 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 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 QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 373rd MeWhenI 🇻🇦 914 71 16 Oct 2022 377th annaproxy 914 79 24 Aug 2022 377th GrayJoKing 🇦🇺 914 79 28 Aug 2022 377th JayXon 🇺🇸 914 79 5 Apr 2023 377th Lydxn 🇨🇦 914 79 9 Apr 2023 377th IanUtley 914 79 3 Nov 2023 377th Kacarott 🇦🇺 914 79 13 Jun 2024 383rd Natanaelel 🇸🇪 913 57 17 Jan 2024 383rd Kacarott 🇦🇺 913 57 10 Sep 2024 385th Shanethegamer 🇺🇸 913 61 9 Oct 2023 386th Lydxn 🇨🇦 913 70 7 May 2022 386th JayXon 🇺🇸 913 70 7 May 2022 388th ovs-code 🇩🇪 913 75 12 Sep 2024 388th Kacarott 🇦🇺 913 75 13 Sep 2024 390th Shanethegamer 🇺🇸 913 87 15 May 2023 390th JayXon 🇺🇸 913 87 15 May 2023 390th Steffan153 🇫🇮 913 87 16 May 2023 390th Lydxn 🇨🇦 913 87 16 May 2023 390th GrayJoKing 🇦🇺 913 87 11 Aug 2023 390th sean-niemann 🇺🇸 913 87 11 Jul 2024 396th sean-niemann 🇺🇸 913 109 25 May 2024 396th CaedenHarper 🇨🇦 913 109 28 Jan 2025 398th AdamHe17 912 73 31 May 2022 398th AliceFord 912 73 2 Jun 2022 398th Natanaelel 🇸🇪 912 73 16 Jun 2022 398th btjones0 912 73 21 Jun 2022 398th marcin7Cd 912 73 27 Jun 2022 398th tri1212 🇻🇳 912 73 18 Jul 2022 398th vhoulbreque 🇫🇷 912 73 18 Aug 2022 398th KatieLG 🇬🇧 912 73 29 Aug 2022 398th tkr-sh 🇫🇷 912 73 8 Sep 2022 398th jroscoe5 912 73 15 Sep 2022 398th fredrik-bakke 🇳🇴 912 73 18 Sep 2022 398th firegene 🇮🇪 912 73 27 Sep 2022 398th OhmNomNom 912 73 7 Oct 2022 398th 0-4849 912 73 1 Nov 2022 398th M0PKOBKA 912 73 19 Dec 2022 398th calumacutt 912 73 19 Dec 2022 398th thehylian 912 73 2 Jan 2023 398th fynnkroeger 912 73 6 Jan 2023 398th shellbertt 🇨🇦 912 73 13 Jan 2023 398th hunt-g 912 73 4 Feb 2023 398th packkill 912 73 13 Feb 2023 398th jmerle 🇳🇱 912 73 16 Feb 2023 398th TaserTheFox 🇺🇸 912 73 14 Mar 2023 398th pinguicula 912 73 6 Apr 2023 398th TheoKeller1 912 73 11 Jun 2023 398th fkantelberg 912 73 16 Jul 2023 398th Mikey-Beep 🇬🇧 912 73 31 Aug 2023 398th eiburns 912 73 9 Oct 2023 398th htareque 912 73 13 Oct 2023 398th wearsunscreen 912 73 18 Oct 2023 398th bzijlema 912 73 25 Oct 2023 398th Grrisly 912 73 10 Nov 2023 398th m42km 912 73 11 Nov 2023 398th GeneralPoxter 912 73 7 Dec 2023 398th logvp 912 73 12 Jan 2024 398th JoaoFelipe3 912 73 13 Jan 2024 398th ehulinsky 🇺🇸 912 73 16 Feb 2024 398th Lewenhaupt 912 73 23 Feb 2024 398th Yewzir 🇧🇪 912 73 5 Apr 2024 398th HETHAT 🇩🇿 912 73 12 Apr 2024 398th stertooy 🇧🇪 912 73 9 Jun 2024 398th cuboids 912 73 11 Jul 2024 398th jipsong 🇩🇪 912 73 23 Jul 2024 398th mattyhempstead 912 73 6 Oct 2024 398th wh3n3v3r 🇨🇿 912 73 18 Nov 2024 398th klixel 🇨🇦 912 73 18 Nov 2024 398th tjwrenn 912 73 10 Dec 2024 398th nullie 912 73 19 Dec 2024 398th ryyyn 912 73 7 Jan 2025 398th maxgodfrey2004 🇨🇦 912 73 13 Feb 2025 398th lolgeny 912 73 22 Feb 2025 398th andrewjc2000 912 73 23 Feb 2025 398th Languag3 912 73 27 Feb 2025 Prev 376–450 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