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 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 Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers 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 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 Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Bytes Time 434th benvreeves 861 79 25 Jul 2025 434th saturzay 861 79 19 Aug 2025 453rd j-Ewan 850 80 13 May 2022 453rd osmith93 850 80 14 Jun 2022 453rd hjcafaroUC 850 80 21 Jun 2022 453rd dankleeman 850 80 8 Aug 2022 453rd dillon-duncando 850 80 4 Oct 2022 453rd DrPiranoid 850 80 11 Nov 2022 453rd mdnestor 850 80 23 Dec 2022 453rd Edjyzod 850 80 7 Mar 2023 453rd henry-von-wichert 850 80 31 Mar 2023 453rd Hortaros 850 80 16 Apr 2023 453rd ankeetparikh 850 80 5 May 2023 453rd Neonader 850 80 9 May 2023 453rd nickgza 850 80 17 Aug 2023 453rd MiranDaniel 🇨🇿 850 80 30 Aug 2023 453rd Fanrco 850 80 31 Aug 2023 453rd nyoshe 850 80 10 Oct 2023 453rd AzroyAr 850 80 28 Dec 2023 453rd Alex-Huggett 🇬🇧 850 80 13 Apr 2024 453rd RobertHoeh 850 80 27 May 2024 453rd LorenzoDeGaspari 850 80 27 May 2024 453rd AstroOrbis 850 80 7 May 2025 453rd vgamula 🇺🇦 850 80 16 Jul 2025 453rd imoxyg 850 80 29 Aug 2025 476th abba23 840 81 26 May 2022 476th docd 840 81 8 Aug 2022 476th Smetalo 840 81 25 Aug 2022 476th glesnick 840 81 6 Sep 2022 476th Yareeeema 840 81 3 Nov 2022 476th RandGuy 840 81 23 Nov 2022 476th GWStuart 840 81 19 Dec 2022 476th wa1ker38552 840 81 22 May 2023 476th LimaoC 840 81 11 Aug 2023 476th robertovers 840 81 2 Oct 2023 476th HanaEndUser 840 81 15 Feb 2024 476th Loag 840 81 22 Sep 2024 476th julian-hoelz 840 81 23 Sep 2024 476th JesseNoEyes 🇺🇸 840 81 4 Oct 2024 476th GoldStar184 840 81 27 Nov 2024 476th ihatethefrench 840 81 5 Jan 2025 476th csharpython 840 81 2 Aug 2025 493rd Ailko 🇧🇪 829 82 12 May 2022 493rd joshmoody24 829 82 12 May 2022 493rd andrewgopher 829 82 25 Jun 2022 493rd estomagordo 🇳🇱 829 82 26 Oct 2022 493rd ThatAlo 829 82 14 Nov 2022 493rd twocatsinatrenchcoat 829 82 29 Nov 2022 493rd aid-f 829 82 21 Mar 2023 493rd henrydukepickle 829 82 8 Dec 2023 493rd amollberg 🇸🇪 829 82 3 Jan 2024 493rd mrmena 🇦🇺 829 82 19 Mar 2024 493rd rifatx 829 82 16 Jul 2024 493rd NicoH76 829 82 24 Apr 2025 493rd 0dyse 829 82 29 Apr 2025 493rd georgekattenbelt 829 82 6 May 2025 493rd some-function 829 82 2 Jul 2025 508th bonevbs 819 83 8 May 2022 508th feherd 819 83 20 May 2022 508th pbleich 819 83 24 Aug 2022 508th RoscoeSmith 819 83 20 Nov 2022 508th amadeusdotpng 819 83 22 Apr 2023 508th ross-i 819 83 5 Jul 2023 508th anonymaew 819 83 2 Aug 2023 508th mstang107 819 83 20 Dec 2023 508th LHLaurini 🇧🇷 819 83 26 Jun 2024 508th C0derX3 🇺🇸 819 83 18 Sep 2024 508th ComputerKWasTaken 🇺🇸 819 83 20 Jan 2025 508th Vexxter9 🇳🇱 819 83 4 Feb 2025 508th CodyKlingler 819 83 7 Feb 2025 508th OyuDays 819 83 17 Mar 2025 508th julianreece 819 83 29 Apr 2025 508th jacekwladzinski 819 83 10 days ago 524th Feniske 🇫🇷 810 84 7 Oct 2022 524th Eilonlif 🇮🇱 810 84 29 Mar 2023 First Prev 451–525 of 785 Next Last