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 NFA Simulator 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 NFA Simulator 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 670th abcdhhhh 643 98 14ms 27 Aug 2024 670th OSYCh314 🇦🇺 643 98 23ms 16 Nov 2024 670th cole-wilson 643 98 17ms 9 Dec 2024 670th Akilles1 643 98 19ms 15 May 2025 670th Hyperoplex145 643 98 20ms 22 days ago 681st LukeRichardson-dev 636 99 14ms 12 May 2022 681st Tagfox 636 99 18ms 18 Jul 2022 681st gabrielsqw 636 99 24ms 24 Oct 2023 681st sciencedjinn 636 99 16ms 8 Nov 2024 681st MrNiknoc 636 99 23ms 15 Jun 2025 686th OppositeShark 630 100 18ms 19 Jul 2022 686th NOS4A5I 630 100 17ms 10 Jan 2023 686th lomarbrick 630 100 17ms 16 May 2023 686th karlaacastro44 630 100 18ms 5 May 2025 690th markus-rekdal 624 101 23ms 10 May 2022 690th fraserli 🇦🇺 624 101 23ms 2 May 2023 690th FCORMERAIS 624 101 17ms 6 Mar 2024 690th yhm138 624 101 14ms 16 Feb 2025 690th MinecraftFan69420 624 101 21ms 31 Oct 2025 695th PogLop 🇨🇿 618 102 20ms 31 Oct 2022 695th AndersH3 🇸🇪 618 102 14ms 17 May 2023 695th JulieGermainUNT 618 102 17ms 2 Apr 2025 695th NicoBliss 618 102 22ms 17 days ago 699th enbyte 612 103 19ms 20 Dec 2022 699th rajlath 612 103 19ms 7 Jan 2023 699th mnurzia 612 103 15ms 12 Oct 2023 699th sqrteipi 612 103 19ms 2 Apr 2024 699th calum12345 612 103 18ms 26 Mar 2025 699th SectorCorruptor 612 103 28ms 14 Aug 2025 705th winigo3 606 104 24ms 8 Aug 2022 705th zt14427 606 104 18ms 30 Apr 2023 705th IoLimmer 606 104 18ms 24 Jul 2024 708th LordSir101 600 105 16ms 19 Jul 2022 708th tmanternach 600 105 19ms 24 Nov 2022 708th weber-hge 600 105 15ms 13 Jun 2023 708th Eugen-str 600 105 19ms 24 Oct 2023 712th ms-tingliang 594 106 16ms 5 Aug 2022 712th achilleasr 594 106 18ms 7 Nov 2022 712th OleBrumm 594 106 21ms 8 Jan 2023 712th AbhilashaTandon 594 106 20ms 19 Sep 2023 712th sheeperino 🇮🇹 594 106 18ms 11 Oct 2024 717th phpboyscout 589 107 17ms 18 May 2023 717th DrPrettyman 589 107 15ms 5 Jul 2023 717th joseph-w0ng 589 107 14ms 5 Jul 2024 717th EnisEfe0 589 107 19ms 18 May 2025 721st landyrisbad 583 108 19ms 13 Nov 2022 721st cakular 583 108 25ms 17 May 2024 721st glassala 583 108 14ms 25 Oct 2024 721st StronkCheese2 583 108 33ms 21 days ago 725th tjefferson401 578 109 27ms 16 Sep 2022 725th ariesmarinus 578 109 15ms 21 Nov 2024 727th profJGermain 573 110 20ms 7 Feb 2024 727th JMMMMC 573 110 20ms 23 Oct 2024 727th jtb0362 573 110 26ms 10 May 2025 730th sagnik3 563 112 20ms 8 Aug 2022 730th craftablescience 563 112 16ms 19 Sep 2023 732nd kelseychristensen 558 113 19ms 2 Nov 2022 732nd ArmsTheLimited 558 113 15ms 1 Jun 2023 734th HunterC14 553 114 26ms 18 Oct 2024 735th jstechman 548 115 18ms 24 Feb 2024 735th dan422442 548 115 20ms 19 Oct 2024 737th keelanfh 543 116 15ms 20 Dec 2023 737th returnitynet 543 116 17ms 27 Jan 2025 737th EthanPatel01000101 543 116 16ms 20 Oct 2025 740th gioto64 538 117 16ms 8 Dec 2022 740th WilfredSalmon 538 117 16ms 21 Oct 2023 742nd XianchengZ 534 118 18ms 18 Aug 2023 742nd brindak2005 534 118 16ms 2 May 2025 744th jmmographer 516 122 18ms 21 Oct 2023 744th RucatJ 516 122 19ms 8 Aug 2025 746th xbxbxb007 512 123 20ms 10 Jan 2024 747th kevinnaviapaiva 488 129 16ms 20 Feb 2025 748th AdrianN001 485 130 17ms 6 Aug 2023 749th wyatt-the-hump 481 131 15ms 24 Dec 2022 749th hotmanga 481 131 14ms 20 Oct 2023 First Prev 676–750 of 808 Next Last
