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 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 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 Calendar 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 Multitap Input 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 Arturo Befunge BQN CJam CoffeeScript Egel 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 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 Arturo Befunge BQN CJam CoffeeScript Egel 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 Minesweeper 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 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 Calendar 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 Multitap Input 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 673rd StronkCheese 🇺🇸 643 98 19ms 13 Mar 2023 673rd Anthony-Williams-06 643 98 29ms 17 Oct 2023 673rd abcdhhhh 643 98 17ms 27 Aug 2024 673rd OSYCh314 🇦🇺 643 98 24ms 16 Nov 2024 673rd cole-wilson 643 98 19ms 9 Dec 2024 673rd Akilles1 643 98 21ms 15 May 2025 673rd Hyperoplex145 643 98 18ms 11 Nov 2025 683rd LukeRichardson-dev 636 99 15ms 12 May 2022 683rd Tagfox 636 99 18ms 18 Jul 2022 683rd gabrielsqw 636 99 23ms 24 Oct 2023 683rd sciencedjinn 636 99 16ms 8 Nov 2024 683rd MrNiknoc 636 99 18ms 15 Jun 2025 688th OppositeShark 630 100 18ms 19 Jul 2022 688th NOS4A5I 630 100 17ms 10 Jan 2023 688th lomarbrick 630 100 17ms 16 May 2023 688th karlaacastro44 630 100 19ms 5 May 2025 692nd markus-rekdal 624 101 24ms 10 May 2022 692nd fraserli 🇦🇺 624 101 25ms 2 May 2023 692nd FCORMERAIS 624 101 17ms 6 Mar 2024 692nd yhm138 624 101 13ms 16 Feb 2025 692nd MinecraftFan69420 624 101 21ms 31 Oct 2025 697th PogLop 🇨🇿 618 102 19ms 31 Oct 2022 697th AndersH3 🇸🇪 618 102 14ms 17 May 2023 697th JulieGermainUNT 618 102 20ms 2 Apr 2025 697th NicoBliss 618 102 22ms 16 Nov 2025 701st enbyte 612 103 19ms 20 Dec 2022 701st rajlath 612 103 21ms 7 Jan 2023 701st mnurzia 612 103 15ms 12 Oct 2023 701st sqrteipi 612 103 19ms 2 Apr 2024 701st calum12345 612 103 19ms 26 Mar 2025 701st SectorCorruptor 612 103 24ms 14 Aug 2025 707th winigo3 606 104 23ms 8 Aug 2022 707th zt14427 606 104 19ms 30 Apr 2023 707th IoLimmer 606 104 19ms 24 Jul 2024 710th LordSir101 600 105 17ms 19 Jul 2022 710th tmanternach 600 105 19ms 24 Nov 2022 710th weber-hge 600 105 15ms 13 Jun 2023 710th Eugen-str 600 105 19ms 24 Oct 2023 714th ms-tingliang 594 106 14ms 5 Aug 2022 714th achilleasr 594 106 18ms 7 Nov 2022 714th OleBrumm 594 106 19ms 8 Jan 2023 714th AbhilashaTandon 594 106 23ms 19 Sep 2023 714th sheeperino 🇮🇹 594 106 19ms 11 Oct 2024 719th phpboyscout 589 107 16ms 18 May 2023 719th DrPrettyman 589 107 15ms 5 Jul 2023 719th joseph-w0ng 589 107 14ms 5 Jul 2024 719th EnisEfe0 589 107 24ms 18 May 2025 723rd landyrisbad 583 108 20ms 13 Nov 2022 723rd cakular 583 108 27ms 17 May 2024 723rd glassala 583 108 16ms 25 Oct 2024 723rd CarterStroik 583 108 19ms 12 Nov 2025 727th tjefferson401 578 109 27ms 16 Sep 2022 727th ariesmarinus 578 109 17ms 21 Nov 2024 729th profJGermain 573 110 19ms 7 Feb 2024 729th JMMMMC 573 110 20ms 23 Oct 2024 729th jtb0362 573 110 19ms 10 May 2025 732nd sagnik3 563 112 18ms 8 Aug 2022 732nd craftablescience 563 112 17ms 19 Sep 2023 734th kelseychristensen 558 113 19ms 2 Nov 2022 734th ArmsTheLimited 558 113 14ms 1 Jun 2023 736th HunterC14 553 114 26ms 18 Oct 2024 737th jstechman 548 115 20ms 24 Feb 2024 737th dan422442 548 115 19ms 19 Oct 2024 739th keelanfh 543 116 16ms 20 Dec 2023 739th returnitynet 543 116 16ms 27 Jan 2025 739th EthanPatel01000101 543 116 16ms 20 Oct 2025 742nd gioto64 538 117 16ms 8 Dec 2022 742nd WilfredSalmon 538 117 16ms 21 Oct 2023 744th XianchengZ 534 118 18ms 18 Aug 2023 744th brindak2005 534 118 16ms 2 May 2025 746th jmmographer 516 122 22ms 21 Oct 2023 746th RucatJ 516 122 17ms 8 Aug 2025 748th xbxbxb007 512 123 21ms 10 Jan 2024 749th kevinnaviapaiva 488 129 17ms 20 Feb 2025 750th AdrianN001 485 130 17ms 6 Aug 2023 First Prev 676–750 of 810 Next Last
