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 Colors (Inverse) 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 Colors (Inverse) 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 869th kawrei 876 76 26 days ago 902nd c0d3-4-F00d 🇩🇪 876 89 5 May 2022 902nd TRexOnGit 876 89 16 Feb 2024 902nd arcpolaris 876 89 18 Nov 2024 905th Shanethegamer 🇺🇸 876 142 27 Mar 2025 905th DialFrost 🇸🇬 876 142 28 Mar 2025 905th emgordon154 876 142 10 Apr 2025 908th nwellnhof 🇩🇪 874 53 4 May 2022 908th GrayJoKing 🇦🇺 874 53 6 May 2022 910th althryenix 874 134 25 Jul 2022 910th MrGagnonHPS 874 134 1 Nov 2023 912th AlephSquirrel 873 80 20 Apr 2023 912th ashtraypettingzoo 🇺🇸 873 80 1 Apr 2024 914th inventshah 873 97 6 May 2022 914th roupiq 🇵🇱 873 97 22 Nov 2023 914th fuzzylojik-golf 🇺🇸 873 97 25 hours ago 917th Grrisly 873 114 25 Mar 2024 918th MeWhenI 🇻🇦 873 207 21 Apr 2025 919th Irratix 🇳🇱 872 72 4 May 2022 919th m-tkach 🇺🇦 872 72 4 May 2022 919th jared-hughes 872 72 6 Jul 2022 919th michael-pruglo 🇺🇦 872 72 13 Jul 2022 919th Steffan153 🇫🇮 872 72 3 Jan 2023 919th MeWhenI 🇻🇦 872 72 7 May 2023 919th ListeriaM 872 72 22 Aug 2023 919th JohandeRuiter 🇳🇱 872 72 14 Sep 2024 919th larcherMTT 872 72 5 Oct 2024 919th snyderek 🇺🇸 872 72 19 Feb 2025 929th DialFrost 🇸🇬 872 86 24 Oct 2024 929th stefangimmillaro 872 86 14 Jan 2025 931st dieggsy 871 97 8 Oct 2024 931st edsrzf 🇳🇿 871 97 8 Dec 2024 933rd ulucs 870 35 8 May 2022 933rd GrayJoKing 🇦🇺 870 35 9 May 2022 933rd bstrat 870 35 6 Jun 2024 933rd wh3n3v3r 🇨🇿 870 35 18 Nov 2024 937th Andriamanitra 🇫🇮 870 54 21 Jul 2022 937th jared-hughes 870 54 12 Sep 2022 937th OhmNomNom 870 54 7 Oct 2022 937th olleicua 🇺🇸 870 54 21 Jan 2024 937th LostSyntax21 🇬🇧 870 54 12 Mar 2025 942nd DialFrost 🇸🇬 870 64 10 Jul 2024 943rd MeWhenI 🇻🇦 870 71 13 Dec 2022 944th Steffan153 🇫🇮 870 83 9 Apr 2023 944th ovs-code 🇩🇪 870 83 1 Jul 2024 946th scpchicken 🇵🇼 869 45 4 May 2022 946th SirBogman 🇺🇸 869 45 5 May 2022 948th ovs-code 🇩🇪 869 85 11 Dec 2023 949th jacobly0 🇺🇸 869 154 26 Sep 2023 949th MeWhenI 🇻🇦 869 154 10 Oct 2023 951st Steffan153 🇫🇮 868 82 23 Feb 2023 952nd MeWhenI 🇻🇦 868 85 27 Jun 2022 952nd Shanethegamer 🇺🇸 868 85 15 May 2023 954th lukehewittvandy 868 135 18 Jul 2022 954th OriEy 868 135 27 Apr 2023 954th Maximizer02 868 135 8 Jun 2024 954th 0dyse 868 135 23 Apr 2025 958th deadp4nda 🇩🇪 867 90 26 Apr 2024 959th pardouin 🇫🇷 866 61 7 Aug 2024 960th mtirado1 866 75 13 Aug 2022 961st KatieLG 🇬🇧 866 115 25 Sep 2022 961st emgordon154 866 115 17 Jan 2025 963rd Frowny 865 38 5 May 2022 963rd stackofbears 865 38 14 Mar 2025 965th GrayJoKing 🇦🇺 865 67 8 Feb 2025 966th cooljoseph1 865 77 6 May 2022 966th krcs 🇵🇱 865 77 11 May 2022 966th kenballus 865 77 13 Jul 2022 966th 104210 865 77 29 Jul 2022 966th andre-de-lorde 865 77 1 Sep 2022 966th zstephe 865 77 2 Dec 2022 966th badboj40 865 77 27 Dec 2022 966th henrytranter 865 77 11 Jan 2023 966th DragonaireM 865 77 6 Feb 2023 966th steffan-polygolf 865 77 19 Feb 2023 Prev 901–975 of 3,059 Next