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 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 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 219th emgordon154 937 49 19 Aug 2024 219th ovs-code 🇩🇪 937 49 19 Aug 2024 219th mousetail 🇳🇱 937 49 13 Sep 2024 219th lynn 937 49 20 Dec 2024 219th weeble 937 49 20 Dec 2024 219th sean-niemann 🇺🇸 937 49 11 Jan 2025 232nd inventshah 937 57 4 May 2022 232nd itsh01 937 57 17 May 2022 232nd Natanaelel 🇸🇪 937 57 16 Jun 2022 232nd Attero 🇸🇪 937 57 3 Aug 2022 232nd SirFireball3521 937 57 26 Jan 2023 232nd Kacarott 🇦🇺 937 57 24 Mar 2023 232nd nathanadams 🇳🇿 937 57 24 Apr 2023 232nd hacker112 🇸🇪 937 57 20 Jun 2024 232nd thisishowmymindworks 🇳🇴 937 57 28 Jun 2024 232nd helbling 🇨🇭 937 57 26 Jul 2024 232nd Salutations45 937 57 18 Nov 2024 243rd Lydxn 🇨🇦 937 125 6 May 2022 243rd JayXon 🇺🇸 937 125 9 May 2022 245th grey0ut 936 48 24 days ago 246th emplv 🇱🇻 932 60 5 May 2022 246th GrayJoKing 🇦🇺 932 60 6 May 2022 246th targrik 932 60 24 Dec 2024 246th xsot 🇸🇬 932 60 2 days ago 250th nwellnhof 🇩🇪 931 42 4 May 2022 250th Lydxn 🇨🇦 931 42 4 May 2022 250th GrayJoKing 🇦🇺 931 42 4 May 2022 250th Steffan153 🇫🇮 931 42 16 Dec 2022 250th sisyphus-ppcg 🇦🇺 931 42 31 Jan 2023 250th ovs-code 🇩🇪 931 42 30 Dec 2023 250th sean-niemann 🇺🇸 931 42 8 Mar 2025 257th stefangimmillaro 930 126 4 May 2022 257th Irratix 🇳🇱 930 126 4 May 2022 257th MeWhenI 🇻🇦 930 126 4 May 2022 257th janbehrens 🇩🇪 930 126 4 May 2022 257th shellbertt 🇨🇦 930 126 4 May 2022 257th inventshah 930 126 4 May 2022 257th m-tkach 🇺🇦 930 126 4 May 2022 257th sean-niemann 🇺🇸 930 126 4 May 2022 257th nwellnhof 🇩🇪 930 126 4 May 2022 257th Shanethegamer 🇺🇸 930 126 4 May 2022 257th ScottHamper 930 126 5 May 2022 257th ovs-code 🇩🇪 930 126 5 May 2022 257th 5quiwyrm 930 126 4 Sep 2022 257th KrausRaus 🇺🇸 930 126 9 Sep 2022 257th Betuaredead 930 126 5 Jan 2023 257th annaproxy 930 126 7 Jan 2023 257th Yewzir 🇧🇪 930 126 12 Feb 2023 257th Jacob385 930 126 4 Mar 2024 257th dokutan 930 126 17 Mar 2024 257th eMGeeneer 930 126 15 Jun 2024 257th mrondon8 930 126 2 Dec 2024 278th Natanaelel 🇸🇪 929 28 22 Jul 2022 278th SirBogman 🇺🇸 929 28 17 Sep 2022 280th GrayJoKing 🇦🇺 929 56 15 Jan 2024 280th AlephSquirrel 929 56 21 Jan 2024 282nd m-tkach 🇺🇦 929 91 5 May 2022 282nd catfish000 929 91 4 Oct 2023 284th ovs-code 🇩🇪 928 60 9 Oct 2023 284th GrayJoKing 🇦🇺 928 60 11 Oct 2023 284th Lydxn 🇨🇦 928 60 11 Oct 2023 284th GolfingSuccess 🇬🇷 928 60 16 Nov 2023 284th Steffan153 🇫🇮 928 60 28 Jan 2024 284th JayXon 🇺🇸 928 60 29 Jan 2024 284th rucin93 🇵🇱 928 60 10 Jul 2024 284th sean-niemann 🇺🇸 928 60 10 Jul 2024 292nd MeWhenI 🇻🇦 928 68 23 Feb 2023 292nd JayXon 🇺🇸 928 68 4 Mar 2025 294th GrayJoKing 🇦🇺 928 70 13 Jul 2024 294th FlyingPenguin223 928 70 4 Oct 2024 294th jipsong 🇩🇪 928 70 5 Apr 2025 297th Shanethegamer 🇺🇸 928 84 23 days ago 297th HumanoidCPU 928 84 23 days ago 297th stefangimmillaro 928 84 23 days ago 297th sean-niemann 🇺🇸 928 84 23 days ago Prev 226–300 of 3,007 Next
