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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 APL 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 ><> ALGOL 68 ArkScript 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 APL 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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 207th RodAlc24 🇪🇸 851 74 19ms 26 Feb 2026 207th Sandw1ch123 851 74 19ms 42 hours ago 323rd martinnorling 🇸🇪 840 75 24ms 5 May 2022 323rd Trunksistor 🇫🇷 840 75 24ms 9 May 2022 323rd bbakersmith 840 75 22ms 28 Jun 2022 323rd bsoyka 🇺🇸 840 75 19ms 16 Jul 2022 323rd P-Quentin 🇫🇷 840 75 21ms 3 Aug 2022 323rd julienlamoureux78 840 75 20ms 12 Aug 2022 323rd dzshn 840 75 24ms 16 Aug 2022 323rd NerdyMcNerd42 840 75 20ms 20 Aug 2022 323rd destofr 840 75 18ms 25 Aug 2022 323rd vishwathg 840 75 49ms 10 Oct 2022 323rd nkoppel 840 75 19ms 19 Oct 2022 323rd AZ9tumas 840 75 20ms 23 Oct 2022 323rd EthanGrant1 840 75 24ms 7 Nov 2022 323rd Omega65536 🇩🇪 840 75 19ms 24 Nov 2022 323rd b10011 🇫🇮 840 75 24ms 3 Jan 2023 323rd 4ndyJ 🇬🇧 840 75 23ms 3 Jan 2023 323rd randolchance 840 75 21ms 8 Jan 2023 323rd LeeCamp 840 75 20ms 12 Jan 2023 323rd hellwue 840 75 20ms 15 Feb 2023 323rd nandanjp 840 75 20ms 29 Mar 2023 323rd kaptsanovb 840 75 24ms 20 Apr 2023 323rd galloj 🇨🇿 840 75 18ms 20 May 2023 323rd jhu04 840 75 19ms 23 Jun 2023 323rd HelloYuiYui 840 75 18ms 1 Nov 2023 323rd tobyLovick 840 75 26ms 10 Nov 2023 323rd VictorStenvers 🇳🇱 840 75 22ms 13 Nov 2023 323rd RZ781 840 75 27ms 19 Nov 2023 323rd mikehanus 840 75 26ms 21 Nov 2023 323rd 1231234md5 🇨🇳 840 75 20ms 14 Dec 2023 323rd Hebelub 840 75 23ms 6 Jan 2024 323rd minhtrancccp 840 75 25ms 11 Jan 2024 323rd 123mjb 840 75 22ms 25 Jan 2024 323rd jbjd 840 75 23ms 25 Feb 2024 323rd gabe-gallegos 840 75 19ms 2 May 2024 323rd kejcao 🇨🇦 840 75 25ms 11 May 2024 323rd f-tucker 840 75 22ms 24 May 2024 323rd Florian-Mt 840 75 19ms 22 Jul 2024 323rd codingisgreatbutiamnot 840 75 21ms 9 Aug 2024 323rd Terobero 840 75 32ms 23 Aug 2024 323rd abhishekg999 840 75 49ms 17 Sep 2024 323rd RedzGoose 🇦🇺 840 75 22ms 7 Oct 2024 323rd Clay-Goodling 840 75 24ms 8 Oct 2024 323rd JunkIce 840 75 24ms 5 Mar 2025 323rd jiji7879 840 75 24ms 20 Jun 2025 323rd faragocsaba 840 75 24ms 22 Jun 2025 323rd bknower 840 75 19ms 30 Jun 2025 323rd clayboll99 840 75 23ms 14 Jul 2025 323rd Nikinator2704 840 75 18ms 1 Nov 2025 323rd mmoffitt 840 75 26ms 19 Nov 2025 323rd AdrienHache 🇫🇷 840 75 19ms 20 Dec 2025 323rd enigma 840 75 32ms 21 Dec 2025 323rd jesuscbm 840 75 19ms 26 Feb 2026 323rd ASampsonMu31 840 75 51ms 18 days ago 376th guilhem-roy 🇫🇷 829 76 24ms 5 May 2022 376th NewDefectus 🇮🇱 829 76 22ms 6 May 2022 376th CuboidRaptor 🇨🇦 829 76 23ms 25 May 2022 376th TheSmilingTurtle 829 76 26ms 5 Jun 2022 376th Romain-1 🇫🇷 829 76 19ms 8 Jun 2022 376th jhpaques 🇫🇷 829 76 23ms 30 Jul 2022 376th chriscianfarani 829 76 25ms 10 Aug 2022 376th eshilo-draper 829 76 21ms 13 Sep 2022 376th suwat513 829 76 21ms 22 Sep 2022 376th Jaydosu 829 76 23ms 14 Nov 2022 376th tails618 829 76 27ms 2 Dec 2022 376th KevinLyvers 829 76 20ms 17 Dec 2022 376th nayakrujul 829 76 20ms 3 Jan 2023 376th CheeseCake628 🇳🇴 829 76 23ms 8 Jan 2023 376th CatsAreFluffy 829 76 26ms 18 Feb 2023 376th adamnielson42 🇺🇸 829 76 19ms 1 Mar 2023 376th Schreipfelerer 829 76 27ms 9 Apr 2023 376th hm5822 829 76 27ms 22 Apr 2023 376th celiendonze 🇨🇭 829 76 27ms 5 Jul 2023 376th brochmann 🇸🇪 829 76 21ms 13 Aug 2023 376th Command-Master 829 76 36ms 2 Oct 2023 376th chartung17 829 76 21ms 17 Dec 2023 376th smokestacklightnin 🇺🇸 829 76 26ms 10 Jan 2024 376th NickTheEASDude 🇺🇸 829 76 53ms 26 Jan 2024 376th yuchuehw 829 76 26ms 2 Feb 2024 First Prev 321–400 of 844 Next Last
