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 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 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 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 Tower of Hanoi 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 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 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 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 Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 439th eddvrs 797 79 22ms 22 Dec 2023 439th tknight00 797 79 24ms 7 Mar 2024 439th thienudomsrirungruang 797 79 52ms 3 May 2024 439th IsaacAlexBarden 797 79 23ms 6 Feb 2025 439th taesungh 797 79 24ms 7 Jun 2025 439th benvreeves 797 79 22ms 25 Jul 2025 439th saturzay 797 79 25ms 19 Aug 2025 439th TransformLikeATensor 797 79 19ms 16 Oct 2025 439th j-zhang43 797 79 18ms 98 mins ago 460th j-Ewan 788 80 20ms 13 May 2022 460th osmith93 788 80 33ms 14 Jun 2022 460th hjcafaroUC 788 80 25ms 21 Jun 2022 460th dankleeman 788 80 18ms 8 Aug 2022 460th dillon-duncando 788 80 22ms 4 Oct 2022 460th DrPiranoid 788 80 22ms 11 Nov 2022 460th mdnestor 788 80 24ms 23 Dec 2022 460th Edjyzod 788 80 16ms 7 Mar 2023 460th henry-von-wichert 788 80 28ms 31 Mar 2023 460th Hortaros 788 80 22ms 16 Apr 2023 460th ankeetparikh 788 80 18ms 5 May 2023 460th Neonader 788 80 27ms 9 May 2023 460th nickgza 788 80 16ms 17 Aug 2023 460th MiranDaniel 🇨🇿 788 80 25ms 30 Aug 2023 460th Fanrco 788 80 18ms 31 Aug 2023 460th nyoshe 788 80 21ms 10 Oct 2023 460th AzroyAr 788 80 27ms 28 Dec 2023 460th Alex-Huggett 🇬🇧 788 80 54ms 13 Apr 2024 460th RobertHoeh 788 80 26ms 27 May 2024 460th LorenzoDeGaspari 788 80 23ms 27 May 2024 460th AstroOrbis 788 80 25ms 7 May 2025 460th vgamula 🇺🇦 788 80 22ms 16 Jul 2025 460th imoxyg 788 80 23ms 29 Aug 2025 460th Tristanchaang 788 80 21ms 2 days ago 484th abba23 778 81 29ms 26 May 2022 484th docd 778 81 20ms 8 Aug 2022 484th Smetalo 778 81 25ms 25 Aug 2022 484th glesnick 778 81 24ms 6 Sep 2022 484th Yareeeema 778 81 25ms 3 Nov 2022 484th RandGuy 778 81 25ms 23 Nov 2022 484th GWStuart 778 81 25ms 19 Dec 2022 484th wa1ker38552 778 81 20ms 22 May 2023 484th LimaoC 778 81 22ms 11 Aug 2023 484th robertovers 778 81 23ms 2 Oct 2023 484th HanaEndUser 778 81 17ms 15 Feb 2024 484th Loag 778 81 16ms 22 Sep 2024 484th julian-hoelz 778 81 16ms 23 Sep 2024 484th JesseNoEyes 🇺🇸 778 81 18ms 4 Oct 2024 484th GoldStar184 778 81 23ms 27 Nov 2024 484th ihatethefrench 778 81 23ms 5 Jan 2025 484th csharpython 778 81 16ms 2 Aug 2025 501st Ailko 🇧🇪 768 82 25ms 12 May 2022 501st joshmoody24 768 82 25ms 12 May 2022 501st andrewgopher 768 82 18ms 25 Jun 2022 501st estomagordo 🇳🇱 768 82 25ms 26 Oct 2022 501st ThatAlo 768 82 23ms 14 Nov 2022 501st twocatsinatrenchcoat 768 82 17ms 29 Nov 2022 501st aid-f 768 82 21ms 21 Mar 2023 501st henrydukepickle 768 82 18ms 8 Dec 2023 501st amollberg 🇸🇪 768 82 25ms 3 Jan 2024 501st mrmena 🇦🇺 768 82 26ms 19 Mar 2024 501st rifatx 768 82 22ms 16 Jul 2024 501st NicoH76 768 82 18ms 24 Apr 2025 501st 0dyse 768 82 24ms 29 Apr 2025 501st georgekattenbelt 768 82 18ms 6 May 2025 501st some-function 768 82 16ms 2 Jul 2025 501st jacekwladzinski 768 82 24ms 3 days ago 517th bonevbs 759 83 18ms 8 May 2022 517th feherd 759 83 18ms 20 May 2022 517th pbleich 759 83 23ms 24 Aug 2022 517th RoscoeSmith 759 83 29ms 20 Nov 2022 517th amadeusdotpng 759 83 20ms 22 Apr 2023 517th ross-i 759 83 17ms 5 Jul 2023 517th anonymaew 759 83 26ms 2 Aug 2023 517th mstang107 759 83 22ms 20 Dec 2023 517th LHLaurini 🇧🇷 759 83 17ms 26 Jun 2024 First Prev 451–525 of 800 Next Last