Collatz in Python 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 348th Ythaenagor 895 76 5 Aug 2024 348th martion2007 895 76 9 Aug 2024 348th sjrct 895 76 10 Aug 2024 348th Mathrew2012 895 76 9 Nov 2024 348th kawrei 895 76 4 May 2025 348th RaBa21 🇭🇺 895 76 19 Jul 2025 382nd cooljoseph1 883 77 6 May 2022 382nd krcs 🇵🇱 883 77 11 May 2022 382nd kenballus 883 77 13 Jul 2022 382nd 104210 883 77 29 Jul 2022 382nd andre-de-lorde 883 77 1 Sep 2022 382nd zstephe 883 77 2 Dec 2022 382nd badboj40 883 77 27 Dec 2022 382nd henrytranter 883 77 11 Jan 2023 382nd DragonaireM 883 77 6 Feb 2023 382nd steffan-polygolf 883 77 19 Feb 2023 382nd kellantech 883 77 21 May 2023 382nd Ty-Cyr 883 77 14 Jul 2023 382nd camieac 🇬🇧 883 77 14 Jul 2023 382nd nathsou 🇫🇷 883 77 2 Sep 2023 382nd MisterrLuck 883 77 7 Sep 2023 382nd alexjurkiewicz 🇦🇺 883 77 7 Nov 2023 382nd askipio 883 77 22 Nov 2023 382nd trinityy-7 883 77 17 Dec 2023 382nd zwxzwxzwx21 883 77 30 Jan 2024 382nd PyryL 🇫🇮 883 77 23 Aug 2024 382nd CyberTapir 883 77 27 Aug 2024 382nd junten1 883 77 20 Oct 2024 382nd croc54 883 77 24 Dec 2024 382nd za3k 883 77 3 Jun 2025 382nd mossiegoat 883 77 17 Aug 2025 407th AGoyet 872 78 29 Jul 2022 407th RYNO8 872 78 16 Aug 2022 407th TheCod-r 🇦🇶 872 78 28 Sep 2022 407th Marthe-CC 872 78 9 Oct 2022 407th Wildst 872 78 2 Nov 2022 407th nmgetahun 872 78 4 Dec 2022 407th Techdude01 872 78 13 Dec 2022 407th tvcv901 872 78 22 Mar 2023 407th oceko 872 78 24 Mar 2023 407th yoyoyonono 872 78 15 May 2023 407th Nic0M 872 78 13 Aug 2023 407th ssbhatt4321 872 78 14 Oct 2023 407th wyarde 872 78 7 Nov 2023 407th EthanJ-Brady 872 78 24 Dec 2023 407th adamreidsmith 872 78 16 Feb 2024 407th Jacob385 872 78 5 Mar 2024 407th DGipe 872 78 13 May 2024 407th cyxv 872 78 2 Aug 2024 407th gallium-gonzollium 872 78 26 Aug 2024 407th Europe2048 872 78 24 Nov 2024 407th GeneralFabian 872 78 14 Dec 2024 428th kevdah 861 79 27 May 2022 428th jacklynnepenick 861 79 22 Jun 2022 428th james-downey 861 79 9 Jul 2022 428th andre-lameirinhas 🇵🇹 861 79 26 Jul 2022 428th hamsterskywalker 861 79 7 Sep 2022 428th Pena86 861 79 14 Sep 2022 428th hymanimy 861 79 24 Nov 2022 428th Demonarchet 861 79 18 Apr 2023 428th dtaylor0 861 79 23 May 2023 428th bac0id 861 79 26 Sep 2023 428th neonchickens 861 79 6 Oct 2023 428th MWI-polygolf 861 79 6 Dec 2023 428th eddvrs 861 79 22 Dec 2023 428th tknight00 861 79 7 Mar 2024 428th thienudomsrirungruang 861 79 3 May 2024 428th IsaacAlexBarden 861 79 6 Feb 2025 428th taesungh 861 79 7 Jun 2025 428th benvreeves 861 79 25 Jul 2025 428th saturzay 861 79 19 Aug 2025 447th j-Ewan 850 80 13 May 2022 447th osmith93 850 80 14 Jun 2022 447th hjcafaroUC 850 80 21 Jun 2022 447th dankleeman 850 80 8 Aug 2022 Prev 376–450 of 777 Next