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 900th ashtraypettingzoo 🇺🇸 873 80 1 Apr 2024 902nd Grrisly 873 114 25 Mar 2024 903rd MeWhenI 🇻🇦 873 207 12 days ago 904th Irratix 🇳🇱 872 72 4 May 2022 904th m-tkach 🇺🇦 872 72 4 May 2022 904th jared-hughes 872 72 6 Jul 2022 904th michael-pruglo 🇺🇦 872 72 13 Jul 2022 904th Steffan153 🇫🇮 872 72 3 Jan 2023 904th MeWhenI 🇻🇦 872 72 7 May 2023 904th ListeriaM 872 72 22 Aug 2023 904th JohandeRuiter 🇳🇱 872 72 14 Sep 2024 904th larcherMTT 872 72 5 Oct 2024 904th snyderek 🇺🇸 872 72 19 Feb 2025 914th DialFrost 🇸🇬 872 86 24 Oct 2024 914th stefangimmillaro 872 86 14 Jan 2025 916th inventshah 872 97 6 May 2022 916th roupiq 🇵🇱 872 97 22 Nov 2023 918th dieggsy 871 97 8 Oct 2024 918th edsrzf 🇳🇿 871 97 8 Dec 2024 920th ulucs 870 35 8 May 2022 920th GrayJoKing 🇦🇺 870 35 9 May 2022 920th bstrat 870 35 6 Jun 2024 920th wh3n3v3r 🇨🇿 870 35 18 Nov 2024 924th Andriamanitra 🇫🇮 870 54 21 Jul 2022 924th jared-hughes 870 54 12 Sep 2022 924th OhmNomNom 870 54 7 Oct 2022 924th olleicua 🇺🇸 870 54 21 Jan 2024 924th LostSyntax21 🇬🇧 870 54 12 Mar 2025 929th DialFrost 🇸🇬 870 64 10 Jul 2024 930th MeWhenI 🇻🇦 870 71 13 Dec 2022 931st Steffan153 🇫🇮 870 83 9 Apr 2023 931st ovs-code 🇩🇪 870 83 1 Jul 2024 933rd scpchicken 🇵🇼 869 45 4 May 2022 933rd SirBogman 🇺🇸 869 45 5 May 2022 935th ovs-code 🇩🇪 869 85 11 Dec 2023 936th jacobly0 🇺🇸 869 154 26 Sep 2023 936th MeWhenI 🇻🇦 869 154 10 Oct 2023 938th Steffan153 🇫🇮 868 82 23 Feb 2023 939th MeWhenI 🇻🇦 868 85 27 Jun 2022 939th Shanethegamer 🇺🇸 868 85 15 May 2023 941st lukehewittvandy 868 135 18 Jul 2022 941st OriEy 868 135 27 Apr 2023 941st Maximizer02 868 135 8 Jun 2024 941st 0dyse 868 135 10 days ago 945th pardouin 🇫🇷 866 61 7 Aug 2024 946th mtirado1 866 75 13 Aug 2022 947th deadp4nda 🇩🇪 866 90 26 Apr 2024 948th Frowny 865 38 5 May 2022 948th stackofbears 865 38 14 Mar 2025 950th GrayJoKing 🇦🇺 865 67 8 Feb 2025 951st cooljoseph1 865 77 6 May 2022 951st krcs 🇵🇱 865 77 11 May 2022 951st kenballus 865 77 13 Jul 2022 951st 104210 865 77 29 Jul 2022 951st andre-de-lorde 865 77 1 Sep 2022 951st zstephe 865 77 2 Dec 2022 951st badboj40 865 77 27 Dec 2022 951st henrytranter 865 77 11 Jan 2023 951st DragonaireM 865 77 6 Feb 2023 951st steffan-polygolf 865 77 19 Feb 2023 951st kellantech 865 77 21 May 2023 951st Ty-Cyr 865 77 14 Jul 2023 951st camieac 🇬🇧 865 77 14 Jul 2023 951st nathsou 🇫🇷 865 77 2 Sep 2023 951st MisterrLuck 865 77 7 Sep 2023 951st alexjurkiewicz 🇦🇺 865 77 7 Nov 2023 951st askipio 865 77 22 Nov 2023 951st trinityy-7 865 77 17 Dec 2023 951st zwxzwxzwx21 865 77 30 Jan 2024 951st PyryL 🇫🇮 865 77 23 Aug 2024 951st CyberTapir 865 77 27 Aug 2024 951st Emutis 🇱🇹 865 77 9 Oct 2024 951st junten1 865 77 20 Oct 2024 951st croc54 865 77 24 Dec 2024 975th 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