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 Topological Sort 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 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 Knight 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 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 Knight 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 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 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 Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 601st madeforlosers 900 74 5 Sep 2024 601st LostSyntax21 🇬🇧 900 74 10 Sep 2024 601st Deedogg 900 74 11 Sep 2024 601st MassimoParisi 900 74 18 Sep 2024 601st FortuiteMan 900 74 10 Oct 2024 601st lifthrasiir 🇰🇷 900 74 13 Nov 2024 601st agreegious 900 74 17 Nov 2024 601st Stockoh 🇫🇷 900 74 17 Nov 2024 601st Andrey135296 900 74 24 Nov 2024 601st TralfamadorianComedian 900 74 6 Dec 2024 601st bltnppcnt 900 74 3 Jan 2025 601st ZorblaxV 900 74 12 Jan 2025 601st yokasuretsu 900 74 13 Jan 2025 601st Artemis21 🇬🇧 900 74 17 Jan 2025 601st gdpr777 900 74 10 Feb 2025 601st Pyroan 900 74 27 Mar 2025 601st Squimbletin 900 74 19 Apr 2025 601st Kowalskiexe 🇵🇱 900 74 19 Apr 2025 601st Dandandooo 900 74 23 Apr 2025 601st khangtm123 900 74 4 May 2025 601st 40fied4t 900 74 6 May 2025 601st keelimeguy 🇺🇸 900 74 13 May 2025 601st TheZwierzLF 🇵🇱 900 74 21 May 2025 601st kbeat 🇰🇿 900 74 21 May 2025 601st LvLError 900 74 29 May 2025 601st Lv0Sys 🇵🇱 900 74 30 May 2025 601st ffelixm 900 74 3 Jun 2025 601st Flekay 🇩🇪 900 74 19 Jun 2025 601st DoubleUynn 900 74 25 Jun 2025 601st osNiko 🇧🇷 900 74 22 days ago 601st wobblybits 900 74 4 days ago 707th SirBogman 🇺🇸 899 50 5 May 2022 707th nwellnhof 🇩🇪 899 50 3 Jun 2022 707th Lydxn 🇨🇦 899 50 15 Aug 2022 707th Steffan153 🇫🇮 899 50 9 Aug 2024 711th DialFrost 🇸🇬 898 69 15 Jul 2024 712th GrayJoKing 🇦🇺 898 70 6 May 2022 712th saito-ta 🇯🇵 898 70 21 Dec 2023 712th ovs-code 🇩🇪 898 70 17 Feb 2024 712th trinityy-7 898 70 9 days ago 712th KasperKivimaeki 🇫🇮 898 70 9 days ago 717th DialFrost 🇸🇬 897 29 15 Mar 2025 718th Lydxn 🇨🇦 897 48 5 May 2022 718th pabloferz 897 48 6 Mar 2024 720th nwellnhof 🇩🇪 897 111 4 May 2022 720th emplv 🇱🇻 897 111 5 May 2022 720th Shanethegamer 🇺🇸 897 111 21 Nov 2023 723rd Steffan153 🇫🇮 896 59 10 Aug 2024 723rd rucin93 🇵🇱 896 59 13 Oct 2024 723rd sean-niemann 🇺🇸 896 59 13 Oct 2024 723rd lukegustafson 🇺🇸 896 59 24 Oct 2024 727th Ripick 896 73 8 May 2023 728th GrayJoKing 🇦🇺 896 91 19 Jan 2023 729th Lydxn 🇨🇦 895 72 16 Jul 2023 730th edsrzf 🇳🇿 895 78 26 Oct 2024 731st SiestaGuru 895 131 9 Jan 2023 731st HumanoidCPU 895 131 7 May 2024 733rd JayXon 🇺🇸 895 150 8 Sep 2023 734th MichalMarsalek 🇨🇿 894 87 5 May 2022 734th Kloppermand 🇩🇰 894 87 7 Oct 2022 734th bwat2 894 87 6 Apr 2023 737th ovs-code 🇩🇪 894 89 24 Jul 2024 737th jipsong 🇩🇪 894 89 7 Apr 2025 739th oeb25 893 93 16 May 2022 739th snobee 🇨🇦 893 93 8 Dec 2022 739th logvp 893 93 2 Jan 2024 739th elgan65536 893 93 5 Mar 2024 739th smartiel 893 93 12 Aug 2024 739th trist224 🇫🇷 893 93 12 Aug 2024 739th nullie 893 93 19 Dec 2024 739th lolgeny 893 93 22 Feb 2025 747th Steffan153 🇫🇮 892 52 31 Dec 2022 748th Shanethegamer 🇺🇸 892 61 31 Oct 2022 748th MeWhenI 🇻🇦 892 61 4 Nov 2022 750th GolfingSuccess 🇬🇷 892 95 5 May 2022 Prev 676–750 of 3,268 Next
