Collatz in Python in chars. 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 Chars Time Submitted 445th hymanimy 722 79 24 Nov 2022 445th Demonarchet 722 79 18 Apr 2023 445th dtaylor0 722 79 23 May 2023 445th neonchickens 722 79 6 Oct 2023 445th MWI-polygolf 722 79 6 Dec 2023 445th eddvrs 722 79 22 Dec 2023 445th tknight00 722 79 7 Mar 2024 445th thienudomsrirungruang 722 79 3 May 2024 445th IsaacAlexBarden 722 79 6 Feb 2025 445th taesungh 722 79 7 Jun 2025 445th benvreeves 722 79 25 Jul 2025 445th saturzay 722 79 19 Aug 2025 463rd j-Ewan 713 80 13 May 2022 463rd osmith93 713 80 14 Jun 2022 463rd hjcafaroUC 713 80 21 Jun 2022 463rd dankleeman 713 80 8 Aug 2022 463rd dillon-duncando 713 80 4 Oct 2022 463rd DrPiranoid 713 80 11 Nov 2022 463rd mdnestor 713 80 23 Dec 2022 463rd Edjyzod 713 80 7 Mar 2023 463rd henry-von-wichert 713 80 31 Mar 2023 463rd Hortaros 713 80 16 Apr 2023 463rd ankeetparikh 713 80 5 May 2023 463rd Neonader 713 80 9 May 2023 463rd nickgza 713 80 17 Aug 2023 463rd MiranDaniel 🇨🇿 713 80 30 Aug 2023 463rd Fanrco 713 80 31 Aug 2023 463rd nyoshe 713 80 10 Oct 2023 463rd AzroyAr 713 80 28 Dec 2023 463rd Alex-Huggett 🇬🇧 713 80 13 Apr 2024 463rd RobertHoeh 713 80 27 May 2024 463rd LorenzoDeGaspari 713 80 27 May 2024 463rd AstroOrbis 713 80 7 May 2025 463rd vgamula 🇺🇦 713 80 16 Jul 2025 463rd imoxyg 713 80 29 Aug 2025 486th abba23 704 81 26 May 2022 486th docd 704 81 8 Aug 2022 486th Smetalo 704 81 25 Aug 2022 486th glesnick 704 81 6 Sep 2022 486th Yareeeema 704 81 3 Nov 2022 486th RandGuy 704 81 23 Nov 2022 486th GWStuart 704 81 19 Dec 2022 486th wa1ker38552 704 81 22 May 2023 486th LimaoC 704 81 11 Aug 2023 486th robertovers 704 81 2 Oct 2023 486th HanaEndUser 704 81 15 Feb 2024 486th Loag 704 81 22 Sep 2024 486th julian-hoelz 704 81 23 Sep 2024 486th JesseNoEyes 🇺🇸 704 81 4 Oct 2024 486th GoldStar184 704 81 27 Nov 2024 486th ihatethefrench 704 81 5 Jan 2025 486th csharpython 704 81 2 Aug 2025 503rd Ailko 🇧🇪 695 82 12 May 2022 503rd joshmoody24 695 82 12 May 2022 503rd andrewgopher 695 82 25 Jun 2022 503rd estomagordo 🇳🇱 695 82 26 Oct 2022 503rd ThatAlo 695 82 14 Nov 2022 503rd twocatsinatrenchcoat 695 82 29 Nov 2022 503rd aid-f 695 82 21 Mar 2023 503rd nooby31415 695 82 3 Nov 2023 503rd henrydukepickle 695 82 8 Dec 2023 503rd amollberg 🇸🇪 695 82 3 Jan 2024 503rd mrmena 🇦🇺 695 82 19 Mar 2024 503rd rifatx 695 82 16 Jul 2024 503rd NicoH76 695 82 24 Apr 2025 503rd 0dyse 695 82 29 Apr 2025 503rd some-function 695 82 2 Jul 2025 518th bonevbs 687 83 8 May 2022 518th feherd 687 83 20 May 2022 518th pbleich 687 83 24 Aug 2022 518th RoscoeSmith 687 83 20 Nov 2022 518th amadeusdotpng 687 83 22 Apr 2023 518th ross-i 687 83 5 Jul 2023 518th anonymaew 687 83 2 Aug 2023 518th mstang107 687 83 20 Dec 2023 First Prev 451–525 of 791 Next Last