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 443rd dtaylor0 722 79 23 May 2023 443rd neonchickens 722 79 6 Oct 2023 443rd MWI-polygolf 722 79 6 Dec 2023 443rd eddvrs 722 79 22 Dec 2023 443rd tknight00 722 79 7 Mar 2024 443rd thienudomsrirungruang 722 79 3 May 2024 443rd IsaacAlexBarden 722 79 6 Feb 2025 443rd taesungh 722 79 7 Jun 2025 443rd benvreeves 722 79 25 Jul 2025 443rd saturzay 722 79 19 Aug 2025 461st j-Ewan 713 80 13 May 2022 461st osmith93 713 80 14 Jun 2022 461st hjcafaroUC 713 80 21 Jun 2022 461st dankleeman 713 80 8 Aug 2022 461st dillon-duncando 713 80 4 Oct 2022 461st DrPiranoid 713 80 11 Nov 2022 461st mdnestor 713 80 23 Dec 2022 461st Edjyzod 713 80 7 Mar 2023 461st henry-von-wichert 713 80 31 Mar 2023 461st Hortaros 713 80 16 Apr 2023 461st ankeetparikh 713 80 5 May 2023 461st Neonader 713 80 9 May 2023 461st nickgza 713 80 17 Aug 2023 461st MiranDaniel 🇨🇿 713 80 30 Aug 2023 461st Fanrco 713 80 31 Aug 2023 461st nyoshe 713 80 10 Oct 2023 461st AzroyAr 713 80 28 Dec 2023 461st Alex-Huggett 🇬🇧 713 80 13 Apr 2024 461st RobertHoeh 713 80 27 May 2024 461st LorenzoDeGaspari 713 80 27 May 2024 461st AstroOrbis 713 80 7 May 2025 461st vgamula 🇺🇦 713 80 16 Jul 2025 461st imoxyg 713 80 29 Aug 2025 484th abba23 704 81 26 May 2022 484th docd 704 81 8 Aug 2022 484th Smetalo 704 81 25 Aug 2022 484th glesnick 704 81 6 Sep 2022 484th Yareeeema 704 81 3 Nov 2022 484th RandGuy 704 81 23 Nov 2022 484th GWStuart 704 81 19 Dec 2022 484th wa1ker38552 704 81 22 May 2023 484th LimaoC 704 81 11 Aug 2023 484th robertovers 704 81 2 Oct 2023 484th HanaEndUser 704 81 15 Feb 2024 484th Loag 704 81 22 Sep 2024 484th julian-hoelz 704 81 23 Sep 2024 484th JesseNoEyes 🇺🇸 704 81 4 Oct 2024 484th GoldStar184 704 81 27 Nov 2024 484th ihatethefrench 704 81 5 Jan 2025 484th csharpython 704 81 2 Aug 2025 501st Ailko 🇧🇪 695 82 12 May 2022 501st joshmoody24 695 82 12 May 2022 501st andrewgopher 695 82 25 Jun 2022 501st estomagordo 🇳🇱 695 82 26 Oct 2022 501st ThatAlo 695 82 14 Nov 2022 501st twocatsinatrenchcoat 695 82 29 Nov 2022 501st aid-f 695 82 21 Mar 2023 501st nooby31415 695 82 3 Nov 2023 501st henrydukepickle 695 82 8 Dec 2023 501st amollberg 🇸🇪 695 82 3 Jan 2024 501st mrmena 🇦🇺 695 82 19 Mar 2024 501st rifatx 695 82 16 Jul 2024 501st NicoH76 695 82 24 Apr 2025 501st 0dyse 695 82 29 Apr 2025 501st some-function 695 82 2 Jul 2025 516th bonevbs 687 83 8 May 2022 516th feherd 687 83 20 May 2022 516th pbleich 687 83 24 Aug 2022 516th RoscoeSmith 687 83 20 Nov 2022 516th amadeusdotpng 687 83 22 Apr 2023 516th ross-i 687 83 5 Jul 2023 516th anonymaew 687 83 2 Aug 2023 516th mstang107 687 83 20 Dec 2023 516th LHLaurini 🇧🇷 687 83 26 Jun 2024 516th C0derX3 🇺🇸 687 83 18 Sep 2024 First Prev 451–525 of 787 Next Last