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 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 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 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 Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 613th Anonymousellama21 900 74 14 Mar 2024 613th Bmrl7 900 74 23 Mar 2024 613th cefqrn 900 74 26 May 2024 613th drochom 900 74 18 Jun 2024 613th hiichbindermax 900 74 22 Jun 2024 613th wuzekai518 900 74 9 Jul 2024 613th madex 🇩🇪 900 74 9 Jul 2024 613th cykim8811 900 74 11 Jul 2024 613th imelxr 🇮🇱 900 74 17 Aug 2024 613th EnTerr 900 74 25 Aug 2024 613th Mabeloid 🇳🇴 900 74 1 Sep 2024 613th madeforlosers 900 74 5 Sep 2024 613th LostSyntax21 🇬🇧 900 74 10 Sep 2024 613th Deedogg 900 74 11 Sep 2024 613th MassimoParisi 900 74 18 Sep 2024 613th FortuiteMan 🇫🇷 900 74 10 Oct 2024 613th lifthrasiir 🇰🇷 900 74 13 Nov 2024 613th agreegious 900 74 17 Nov 2024 613th Stockoh 🇫🇷 900 74 17 Nov 2024 613th Andrey135296 900 74 24 Nov 2024 613th TralfamadorianComedian 900 74 6 Dec 2024 613th bltnppcnt 900 74 3 Jan 2025 613th ZorblaxV 900 74 12 Jan 2025 613th yokasuretsu 900 74 13 Jan 2025 613th Artemis21 🇬🇧 900 74 17 Jan 2025 613th gdpr777 900 74 10 Feb 2025 613th Pyroan 900 74 27 Mar 2025 613th Squimbletin 900 74 19 Apr 2025 613th Kowalskiexe 🇵🇱 900 74 19 Apr 2025 613th Dandandooo 900 74 23 Apr 2025 613th khangtm123 900 74 4 May 2025 613th 40fied4t 900 74 6 May 2025 613th keelimeguy 🇺🇸 900 74 13 May 2025 613th TheZwierzLF 🇵🇱 900 74 21 May 2025 613th kbeat 🇰🇿 900 74 21 May 2025 613th LvLError 900 74 29 May 2025 613th Lv0Sys 🇵🇱 900 74 30 May 2025 613th ffelixm 900 74 3 Jun 2025 613th Flekay 🇩🇪 900 74 19 Jun 2025 613th DoubleUynn 900 74 25 Jun 2025 613th osNiko 🇧🇷 900 74 26 Jul 2025 613th wobblybits 900 74 24 days ago 613th denisfouchard 900 74 14 days ago 613th Emutis 🇱🇹 900 74 14 days ago 613th blaztoma 🇱🇹 900 74 13 days ago 721st SirBogman 🇺🇸 899 50 5 May 2022 721st nwellnhof 🇩🇪 899 50 3 Jun 2022 721st Lydxn 🇨🇦 899 50 15 Aug 2022 721st Steffan153 🇫🇮 899 50 9 Aug 2024 725th DialFrost 🇸🇬 899 69 15 Jul 2024 726th nwellnhof 🇩🇪 899 111 4 May 2022 726th emplv 🇱🇻 899 111 5 May 2022 726th Shanethegamer 🇺🇸 899 111 21 Nov 2023 729th GrayJoKing 🇦🇺 898 70 6 May 2022 729th saito-ta 🇯🇵 898 70 21 Dec 2023 729th ovs-code 🇩🇪 898 70 17 Feb 2024 729th trinityy-7 898 70 7 Aug 2025 729th KasperKivimaeki 🇫🇮 898 70 8 Aug 2025 734th DialFrost 🇸🇬 897 29 15 Mar 2025 735th Lydxn 🇨🇦 897 48 5 May 2022 735th pabloferz 897 48 6 Mar 2024 737th Steffan153 🇫🇮 896 59 10 Aug 2024 737th rucin93 🇵🇱 896 59 13 Oct 2024 737th sean-niemann 🇺🇸 896 59 13 Oct 2024 737th lukegustafson 🇺🇸 896 59 24 Oct 2024 741st Ripick 896 73 8 May 2023 742nd GrayJoKing 🇦🇺 896 91 19 Jan 2023 743rd Lydxn 🇨🇦 895 72 16 Jul 2023 744th edsrzf 🇳🇿 895 78 26 Oct 2024 745th MichalMarsalek 🇨🇿 895 87 5 May 2022 745th Kloppermand 🇩🇰 895 87 7 Oct 2022 745th bwat2 895 87 6 Apr 2023 748th SiestaGuru 895 131 9 Jan 2023 748th HumanoidCPU 895 131 7 May 2024 750th JayXon 🇺🇸 895 150 8 Sep 2023 Prev 676–750 of 3,318 Next
