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 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 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 Mandelbrot 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 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 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 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 Mandelbrot 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 225th clockworknazo 938 58 15 Nov 2022 225th Lydxn 🇨🇦 938 58 7 Feb 2023 225th xsot 🇸🇬 938 58 28 Jun 2024 225th Salutations45 938 58 18 Dec 2024 230th TFeld00 🇩🇰 938 71 17 May 2022 230th DialFrost 🇸🇬 938 71 15 Nov 2022 230th StefanHabel 🇨🇦 938 71 29 Nov 2022 230th nstearns96 🇬🇧 938 71 11 Jan 2023 230th hallvabo 🇳🇴 938 71 7 Feb 2023 230th anter69 🇭🇺 938 71 21 May 2024 230th rucin93 🇵🇱 938 71 10 Jul 2024 237th Lydxn 🇨🇦 938 125 6 May 2022 237th JayXon 🇺🇸 938 125 9 May 2022 239th grey0ut 937 48 8 Apr 2025 240th GolfingSuccess 🇬🇷 937 49 12 Aug 2024 240th Shanethegamer 🇺🇸 937 49 12 Aug 2024 240th Steffan153 🇫🇮 937 49 12 Aug 2024 240th MeWhenI 🇻🇦 937 49 13 Aug 2024 240th DialFrost 🇸🇬 937 49 13 Aug 2024 240th GrayJoKing 🇦🇺 937 49 15 Aug 2024 240th btnlq 937 49 16 Aug 2024 240th emgordon154 937 49 19 Aug 2024 240th ovs-code 🇩🇪 937 49 19 Aug 2024 240th mousetail 🇳🇱 937 49 13 Sep 2024 240th lynn 937 49 20 Dec 2024 240th weeble 937 49 20 Dec 2024 240th sean-niemann 🇺🇸 937 49 11 Jan 2025 253rd emplv 🇱🇻 932 60 5 May 2022 253rd GrayJoKing 🇦🇺 932 60 6 May 2022 253rd targrik 932 60 24 Dec 2024 253rd xsot 🇸🇬 932 60 1 May 2025 257th nwellnhof 🇩🇪 931 42 4 May 2022 257th Lydxn 🇨🇦 931 42 4 May 2022 257th GrayJoKing 🇦🇺 931 42 4 May 2022 257th Steffan153 🇫🇮 931 42 16 Dec 2022 257th sisyphus-ppcg 🇦🇺 931 42 31 Jan 2023 257th ovs-code 🇩🇪 931 42 30 Dec 2023 257th sean-niemann 🇺🇸 931 42 8 Mar 2025 264th m-tkach 🇺🇦 931 91 5 May 2022 264th catfish000 931 91 4 Oct 2023 266th GrayJoKing 🇦🇺 930 56 15 Jan 2024 266th AlephSquirrel 930 56 21 Jan 2024 268th stefangimmillaro 930 126 4 May 2022 268th Irratix 🇳🇱 930 126 4 May 2022 268th MeWhenI 🇻🇦 930 126 4 May 2022 268th janbehrens 🇩🇪 930 126 4 May 2022 268th shellbertt 🇨🇦 930 126 4 May 2022 268th inventshah 930 126 4 May 2022 268th m-tkach 🇺🇦 930 126 4 May 2022 268th sean-niemann 🇺🇸 930 126 4 May 2022 268th nwellnhof 🇩🇪 930 126 4 May 2022 268th Shanethegamer 🇺🇸 930 126 4 May 2022 268th ScottHamper 930 126 5 May 2022 268th ovs-code 🇩🇪 930 126 5 May 2022 268th 5quiwyrm 930 126 4 Sep 2022 268th KrausRaus 🇺🇸 930 126 9 Sep 2022 268th Betuaredead 930 126 5 Jan 2023 268th annaproxy 930 126 7 Jan 2023 268th Yewzir 🇧🇪 930 126 12 Feb 2023 268th Jacob385 930 126 4 Mar 2024 268th dokutan 930 126 17 Mar 2024 268th eMGeeneer 930 126 15 Jun 2024 268th mrondon8 930 126 2 Dec 2024 289th Natanaelel 🇸🇪 929 28 22 Jul 2022 289th SirBogman 🇺🇸 929 28 17 Sep 2022 291st Shanethegamer 🇺🇸 929 84 9 Apr 2025 291st HumanoidCPU 929 84 10 Apr 2025 291st stefangimmillaro 929 84 10 Apr 2025 291st sean-niemann 🇺🇸 929 84 10 Apr 2025 291st annaproxy 929 84 11 Apr 2025 291st Re-Adventures 🇮🇳 929 84 15 Apr 2025 291st janbehrens 🇩🇪 929 84 17 Apr 2025 291st fuzzylojik-golf 🇺🇸 929 84 17 days ago 299th ovs-code 🇩🇪 928 60 9 Oct 2023 299th GrayJoKing 🇦🇺 928 60 11 Oct 2023 Prev 226–300 of 3,090 Next
