Collatz in Python in bytes. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Calendar 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 Minesweeper Morse Decoder Morse Encoder Multitap Input 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 Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Erlang 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar 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 Minesweeper Morse Decoder Morse Encoder Multitap Input 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 Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 634th Wonamm 692 91 30ms 14 Feb 2025 642nd TimLeffke 685 92 22ms 17 Aug 2022 642nd Rythoka 685 92 16ms 17 Oct 2022 642nd UriyaBA 685 92 17ms 19 Mar 2023 642nd VladislavGitter 🇪🇸 685 92 20ms 14 Nov 2023 642nd ridingqwerty 🇺🇸 685 92 16ms 22 Dec 2023 642nd Thonoton 685 92 19ms 1 Feb 2024 642nd OCNeve 685 92 20ms 17 Jun 2024 642nd themoonisacheese 685 92 24ms 25 Feb 2025 642nd BabySharkHi 685 92 23ms 22 Apr 2025 642nd arjunarya1 685 92 16ms 28 Aug 2025 642nd TJK-S 685 92 20ms 10 Oct 2025 653rd Bananapants22 677 93 26ms 4 Sep 2022 653rd jaxmattfair 🇺🇸 677 93 19ms 10 Jan 2023 653rd cingulataluke 677 93 20ms 27 Aug 2023 653rd fenix-bear 677 93 22ms 18 Nov 2023 653rd epic-programmer-guy 677 93 22ms 22 Dec 2023 653rd brimstonetrader 677 93 24ms 18 Nov 2024 653rd HunterC14 677 93 26ms 9 hours ago 660th atazzam 🇺🇸 670 94 17ms 18 May 2022 660th rohangpta 670 94 17ms 8 Aug 2022 660th shinylego 670 94 19ms 14 Sep 2022 660th sgaltair 670 94 20ms 4 Nov 2022 660th TotoAJ 670 94 20ms 15 Dec 2023 660th Gusic06 670 94 19ms 6 May 2024 660th kyleyarwood 670 94 21ms 6 Oct 2024 660th jj0786-cell 670 94 22ms 1 Apr 2025 660th griffinschreiber 670 94 20ms 1 Apr 2025 660th o800 670 94 20ms 17 Nov 2025 670th felixcroc 663 95 19ms 30 Mar 2023 670th Pyro569 663 95 20ms 4 Jul 2023 670th rm-rf-innocence 663 95 20ms 19 Dec 2023 670th Bit125 663 95 19ms 30 Jan 2024 670th aalec 663 95 21ms 25 Apr 2024 670th strogor 663 95 20ms 13 Jun 2025 670th cthierfelder 🇲🇨 663 95 20ms 17 Jul 2025 670th ThomasDelepine 663 95 21ms 29 Oct 2025 678th karhuthebear 656 96 24ms 9 May 2022 678th qwjhvbxi 656 96 21ms 6 Feb 2024 678th alfonsoalves 656 96 20ms 21 Jul 2024 678th jeff-re 656 96 14ms 1 Apr 2025 682nd a-penton 649 97 17ms 22 Sep 2022 682nd jrbud 649 97 22ms 6 Jan 2024 682nd befoster 649 97 22ms 22 Feb 2024 682nd joshua-el-samalouti 🇩🇪 649 97 20ms 26 May 2024 682nd luca1339 649 97 20ms 10 Jun 2024 687th lukemalek 643 98 14ms 10 Oct 2022 687th UltimateGuy0987 643 98 20ms 14 Oct 2022 687th TheLazySquid 643 98 21ms 20 Dec 2022 687th StronkCheese 🇺🇸 643 98 21ms 13 Mar 2023 687th Anthony-Williams-06 643 98 27ms 17 Oct 2023 687th abcdhhhh 643 98 15ms 27 Aug 2024 687th OSYCh314 🇦🇺 643 98 26ms 16 Nov 2024 687th cole-wilson 643 98 19ms 9 Dec 2024 687th Akilles1 643 98 20ms 15 May 2025 687th Hyperoplex145 643 98 21ms 11 Nov 2025 697th LukeRichardson-dev 636 99 15ms 12 May 2022 697th Tagfox 636 99 20ms 18 Jul 2022 697th gabrielsqw 636 99 23ms 24 Oct 2023 697th sciencedjinn 636 99 20ms 8 Nov 2024 697th MrNiknoc 636 99 18ms 15 Jun 2025 702nd OppositeShark 630 100 18ms 19 Jul 2022 702nd NOS4A5I 630 100 19ms 10 Jan 2023 702nd lomarbrick 630 100 18ms 16 May 2023 702nd karlaacastro44 630 100 18ms 5 May 2025 706th markus-rekdal 624 101 26ms 10 May 2022 706th fraserli 🇦🇺 624 101 23ms 2 May 2023 706th FCORMERAIS 624 101 19ms 6 Mar 2024 706th yhm138 624 101 14ms 16 Feb 2025 706th MinecraftFan69420 624 101 21ms 31 Oct 2025 711th PogLop 🇨🇿 618 102 20ms 31 Oct 2022 711th AndersH3 🇸🇪 618 102 16ms 17 May 2023 711th JulieGermainUNT 618 102 20ms 2 Apr 2025 711th NicoBliss 618 102 23ms 16 Nov 2025 715th enbyte 612 103 19ms 20 Dec 2022 715th rajlath 612 103 19ms 7 Jan 2023 715th mnurzia 612 103 17ms 12 Oct 2023 715th sqrteipi 612 103 20ms 2 Apr 2024 715th calum12345 612 103 19ms 26 Mar 2025 720th winigo3 606 104 24ms 8 Aug 2022 First Prev 641–720 of 823 Next Last
