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 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 Chars Time Submitted 447th hamsterskywalker 722 79 19ms 7 Sep 2022 447th Pena86 722 79 27ms 14 Sep 2022 447th hymanimy 722 79 25ms 24 Nov 2022 447th Demonarchet 722 79 19ms 18 Apr 2023 447th dtaylor0 722 79 18ms 23 May 2023 447th neonchickens 722 79 24ms 6 Oct 2023 447th MWI-polygolf 722 79 20ms 6 Dec 2023 447th eddvrs 722 79 22ms 22 Dec 2023 447th tknight00 722 79 24ms 7 Mar 2024 447th thienudomsrirungruang 722 79 52ms 3 May 2024 447th IsaacAlexBarden 722 79 23ms 6 Feb 2025 447th taesungh 722 79 24ms 7 Jun 2025 447th benvreeves 722 79 22ms 25 Jul 2025 447th saturzay 722 79 25ms 19 Aug 2025 465th j-Ewan 713 80 20ms 13 May 2022 465th osmith93 713 80 33ms 14 Jun 2022 465th hjcafaroUC 713 80 25ms 21 Jun 2022 465th dankleeman 713 80 18ms 8 Aug 2022 465th dillon-duncando 713 80 22ms 4 Oct 2022 465th DrPiranoid 713 80 22ms 11 Nov 2022 465th mdnestor 713 80 24ms 23 Dec 2022 465th Edjyzod 713 80 16ms 7 Mar 2023 465th henry-von-wichert 713 80 28ms 31 Mar 2023 465th Hortaros 713 80 22ms 16 Apr 2023 465th ankeetparikh 713 80 18ms 5 May 2023 465th Neonader 713 80 27ms 9 May 2023 465th nickgza 713 80 16ms 17 Aug 2023 465th MiranDaniel 🇨🇿 713 80 25ms 30 Aug 2023 465th Fanrco 713 80 18ms 31 Aug 2023 465th nyoshe 713 80 21ms 10 Oct 2023 465th AzroyAr 713 80 27ms 28 Dec 2023 465th Alex-Huggett 🇬🇧 713 80 54ms 13 Apr 2024 465th RobertHoeh 713 80 26ms 27 May 2024 465th LorenzoDeGaspari 713 80 23ms 27 May 2024 465th AstroOrbis 713 80 25ms 7 May 2025 465th vgamula 🇺🇦 713 80 22ms 16 Jul 2025 465th imoxyg 713 80 23ms 29 Aug 2025 465th Tristanchaang 713 80 21ms 47 hours ago 489th abba23 704 81 29ms 26 May 2022 489th docd 704 81 20ms 8 Aug 2022 489th Smetalo 704 81 25ms 25 Aug 2022 489th glesnick 704 81 24ms 6 Sep 2022 489th Yareeeema 704 81 25ms 3 Nov 2022 489th RandGuy 704 81 25ms 23 Nov 2022 489th GWStuart 704 81 25ms 19 Dec 2022 489th wa1ker38552 704 81 20ms 22 May 2023 489th LimaoC 704 81 22ms 11 Aug 2023 489th robertovers 704 81 23ms 2 Oct 2023 489th HanaEndUser 704 81 17ms 15 Feb 2024 489th Loag 704 81 16ms 22 Sep 2024 489th julian-hoelz 704 81 16ms 23 Sep 2024 489th JesseNoEyes 🇺🇸 704 81 18ms 4 Oct 2024 489th GoldStar184 704 81 23ms 27 Nov 2024 489th ihatethefrench 704 81 23ms 5 Jan 2025 489th csharpython 704 81 16ms 2 Aug 2025 506th Ailko 🇧🇪 695 82 25ms 12 May 2022 506th joshmoody24 695 82 25ms 12 May 2022 506th andrewgopher 695 82 18ms 25 Jun 2022 506th estomagordo 🇳🇱 695 82 25ms 26 Oct 2022 506th ThatAlo 695 82 23ms 14 Nov 2022 506th twocatsinatrenchcoat 695 82 17ms 29 Nov 2022 506th aid-f 695 82 21ms 21 Mar 2023 506th nooby31415 695 82 18ms 3 Nov 2023 506th henrydukepickle 695 82 18ms 8 Dec 2023 506th amollberg 🇸🇪 695 82 25ms 3 Jan 2024 506th mrmena 🇦🇺 695 82 26ms 19 Mar 2024 506th rifatx 695 82 22ms 16 Jul 2024 506th NicoH76 695 82 18ms 24 Apr 2025 506th 0dyse 695 82 24ms 29 Apr 2025 506th some-function 695 82 16ms 2 Jul 2025 506th jacekwladzinski 695 82 24ms 3 days ago 522nd bonevbs 687 83 18ms 8 May 2022 522nd feherd 687 83 18ms 20 May 2022 522nd pbleich 687 83 23ms 24 Aug 2022 522nd RoscoeSmith 687 83 29ms 20 Nov 2022 First Prev 451–525 of 798 Next Last