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 Hilbert Curve 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 Trinomial Triangle 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers 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 Groovy 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 Harbour Hare Haxe Hush Hy iogii Knight Luau 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 Groovy 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 Harbour Hare Haxe Hush Hy iogii Knight Luau 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 Hilbert Curve 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 Trinomial Triangle 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Bytes Time 597th agreegious 901 74 17 Nov 2024 597th Stockoh 🇫🇷 901 74 17 Nov 2024 597th Andrey135296 901 74 24 Nov 2024 597th TralfamadorianComedian 901 74 6 Dec 2024 597th bltnppcnt 901 74 3 Jan 2025 597th ZorblaxV 901 74 12 Jan 2025 597th yokasuretsu 901 74 13 Jan 2025 597th Artemis21 🇬🇧 901 74 17 Jan 2025 597th gdpr777 901 74 10 Feb 2025 597th Pyroan 901 74 27 Mar 2025 597th Squimbletin 901 74 19 Apr 2025 597th Kowalskiexe 🇵🇱 901 74 19 Apr 2025 597th Dandandooo 901 74 23 Apr 2025 597th khangtm123 901 74 4 May 2025 597th 40fied4t 901 74 6 May 2025 597th keelimeguy 🇺🇸 901 74 13 May 2025 597th TheZwierzLF 🇵🇱 901 74 21 May 2025 597th kbeat 🇰🇿 901 74 21 May 2025 597th LvLError 901 74 29 May 2025 597th Lv0Sys 🇵🇱 901 74 30 May 2025 597th ffelixm 901 74 3 Jun 2025 597th Flekay 🇩🇪 901 74 19 Jun 2025 597th DoubleUynn 901 74 25 Jun 2025 597th osNiko 🇧🇷 901 74 26 Jul 2025 597th wobblybits 901 74 13 Aug 2025 597th denisfouchard 901 74 23 Aug 2025 597th Emutis 🇱🇹 901 74 23 Aug 2025 597th edsrzf 🇳🇿 901 74 10 Sep 2025 597th Matter1024 🇮🇳 901 74 11 Sep 2025 597th pauljoohyunkim 901 74 26 days ago 597th joll05 🇸🇪 901 74 20 days ago 597th retrohun 901 74 18 days ago 597th solisolu 901 74 16 days ago 597th Code-Coder-coder 901 74 9 days ago 710th Lydxn 🇨🇦 900 108 6 May 2022 710th CaedenHarper 🇨🇦 900 108 16 days ago 712th SirBogman 🇺🇸 899 50 5 May 2022 712th nwellnhof 🇩🇪 899 50 3 Jun 2022 712th Lydxn 🇨🇦 899 50 15 Aug 2022 712th Steffan153 🇫🇮 899 50 9 Aug 2024 716th DialFrost 🇸🇬 899 69 15 Jul 2024 717th Lydxn 🇨🇦 898 48 5 May 2022 717th p-zubieta 898 48 6 Mar 2024 719th GrayJoKing 🇦🇺 898 70 6 May 2022 719th saito-ta 🇯🇵 898 70 21 Dec 2023 719th ovs-code 🇩🇪 898 70 17 Feb 2024 719th trinityy-7 898 70 7 Aug 2025 719th KasperKivimaeki 🇫🇮 898 70 8 Aug 2025 724th Lydxn 🇨🇦 898 72 16 Jul 2023 725th GrayJoKing 🇦🇺 898 91 19 Jan 2023 726th DialFrost 🇸🇬 897 29 15 Mar 2025 727th Steffan153 🇫🇮 897 59 10 Aug 2024 727th rucin93 🇵🇱 897 59 13 Oct 2024 727th sean-niemann 🇺🇸 897 59 13 Oct 2024 727th lukegustafson 🇺🇸 897 59 24 Oct 2024 731st edsrzf 🇳🇿 897 78 26 Oct 2024 731st kg583 🇺🇸 897 78 25 days ago 733rd Ripick 896 73 8 May 2023 734th MichalMarsalek 🇨🇿 895 87 5 May 2022 734th Kloppermand 🇩🇰 895 87 7 Oct 2022 734th bwat2 895 87 6 Apr 2023 737th ovs-code 🇩🇪 895 89 24 Jul 2024 737th jipsong 🇩🇪 895 89 7 Apr 2025 739th oeb25 894 93 16 May 2022 739th snobee 🇨🇦 894 93 8 Dec 2022 739th logvp 894 93 2 Jan 2024 739th elgan65536 894 93 5 Mar 2024 739th smartiel 894 93 12 Aug 2024 739th trist224 🇫🇷 894 93 12 Aug 2024 739th nullie 894 93 19 Dec 2024 739th lolgeny 894 93 22 Feb 2025 747th Shanethegamer 🇺🇸 893 61 31 Oct 2022 747th MeWhenI 🇻🇦 893 61 4 Nov 2022 749th JayXon 🇺🇸 893 74 14 Nov 2024 750th m-tkach 🇺🇦 893 117 7 May 2022 First Prev 676–750 of 3,406 Next Last
