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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 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 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 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 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 Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 592nd ZorblaxV 901 74 12 Jan 2025 592nd yokasuretsu 901 74 13 Jan 2025 592nd Artemis21 🇬🇧 901 74 17 Jan 2025 592nd gdpr777 901 74 10 Feb 2025 592nd Pyroan 901 74 27 Mar 2025 592nd Squimbletin 901 74 19 Apr 2025 592nd Kowalskiexe 🇵🇱 901 74 19 Apr 2025 592nd Dandandooo 901 74 23 Apr 2025 592nd khangtm123 901 74 4 May 2025 592nd 40fied4t 901 74 6 May 2025 592nd keelimeguy 🇺🇸 901 74 13 May 2025 592nd TheZwierzLF 🇵🇱 901 74 21 May 2025 592nd kbeat 🇰🇿 901 74 21 May 2025 592nd LvLError 901 74 29 May 2025 592nd Lv0Sys 🇵🇱 901 74 30 May 2025 592nd ffelixm 901 74 3 Jun 2025 592nd Flekay 🇩🇪 901 74 19 Jun 2025 592nd DoubleUynn 901 74 25 Jun 2025 592nd osNiko 🇧🇷 901 74 26 Jul 2025 592nd wobblybits 901 74 13 Aug 2025 592nd denisfouchard 901 74 23 Aug 2025 592nd Emutis 🇱🇹 901 74 23 Aug 2025 592nd edsrzf 🇳🇿 901 74 20 days ago 592nd 1024An 🇮🇳 901 74 19 days ago 592nd pauljoohyunkim 901 74 5 days ago 701st SirBogman 🇺🇸 899 50 5 May 2022 701st nwellnhof 🇩🇪 899 50 3 Jun 2022 701st Lydxn 🇨🇦 899 50 15 Aug 2022 701st Steffan153 🇫🇮 899 50 9 Aug 2024 705th DialFrost 🇸🇬 899 69 15 Jul 2024 706th nwellnhof 🇩🇪 899 111 4 May 2022 706th emplv 🇱🇻 899 111 5 May 2022 706th Shanethegamer 🇺🇸 899 111 21 Nov 2023 709th Lydxn 🇨🇦 898 48 5 May 2022 709th pabloferz 898 48 6 Mar 2024 711th GrayJoKing 🇦🇺 898 70 6 May 2022 711th saito-ta 🇯🇵 898 70 21 Dec 2023 711th ovs-code 🇩🇪 898 70 17 Feb 2024 711th trinityy-7 898 70 7 Aug 2025 711th KasperKivimaeki 🇫🇮 898 70 8 Aug 2025 716th Lydxn 🇨🇦 898 72 16 Jul 2023 717th GrayJoKing 🇦🇺 898 91 19 Jan 2023 718th DialFrost 🇸🇬 897 29 15 Mar 2025 719th Steffan153 🇫🇮 897 59 10 Aug 2024 719th rucin93 🇵🇱 897 59 13 Oct 2024 719th sean-niemann 🇺🇸 897 59 13 Oct 2024 719th lukegustafson 🇺🇸 897 59 24 Oct 2024 723rd edsrzf 🇳🇿 897 78 26 Oct 2024 723rd kg583 🇺🇸 897 78 4 days ago 725th Ripick 896 73 8 May 2023 726th MichalMarsalek 🇨🇿 895 87 5 May 2022 726th Kloppermand 🇩🇰 895 87 7 Oct 2022 726th bwat2 895 87 6 Apr 2023 729th ovs-code 🇩🇪 894 89 24 Jul 2024 729th jipsong 🇩🇪 894 89 7 Apr 2025 731st oeb25 894 93 16 May 2022 731st snobee 🇨🇦 894 93 8 Dec 2022 731st logvp 894 93 2 Jan 2024 731st elgan65536 894 93 5 Mar 2024 731st smartiel 894 93 12 Aug 2024 731st trist224 🇫🇷 894 93 12 Aug 2024 731st nullie 894 93 19 Dec 2024 731st lolgeny 894 93 22 Feb 2025 739th Shanethegamer 🇺🇸 893 61 31 Oct 2022 739th MeWhenI 🇻🇦 893 61 4 Nov 2022 741st Steffan153 🇫🇮 892 52 31 Dec 2022 742nd stefangimmillaro 892 71 2 Oct 2022 742nd Steffan153 🇫🇮 892 71 23 Feb 2023 742nd Shanethegamer 🇺🇸 892 71 16 May 2023 742nd sean-niemann 🇺🇸 892 71 12 Jul 2024 746th GolfingSuccess 🇬🇷 892 95 5 May 2022 746th Alex-x90 🇺🇸 892 95 4 Dec 2022 746th Mandrzejy 🇵🇱 892 95 22 Mar 2024 749th KatieLG 🇬🇧 891 60 4 May 2022 749th ScottHamper 891 60 5 May 2022 Prev 676–750 of 3,357 Next
