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 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 Trinomial Triangle 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 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 Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 435th benvreeves 722 79 25 Jul 2025 435th saturzay 722 79 19 Aug 2025 453rd j-Ewan 713 80 13 May 2022 453rd osmith93 713 80 14 Jun 2022 453rd hjcafaroUC 713 80 21 Jun 2022 453rd dankleeman 713 80 8 Aug 2022 453rd dillon-duncando 713 80 4 Oct 2022 453rd DrPiranoid 713 80 11 Nov 2022 453rd mdnestor 713 80 23 Dec 2022 453rd Edjyzod 713 80 7 Mar 2023 453rd henry-von-wichert 713 80 31 Mar 2023 453rd Hortaros 713 80 16 Apr 2023 453rd ankeetparikh 713 80 5 May 2023 453rd Neonader 713 80 9 May 2023 453rd nickgza 713 80 17 Aug 2023 453rd MiranDaniel 🇨🇿 713 80 30 Aug 2023 453rd Fanrco 713 80 31 Aug 2023 453rd nyoshe 713 80 10 Oct 2023 453rd AzroyAr 713 80 28 Dec 2023 453rd Alex-Huggett 🇬🇧 713 80 13 Apr 2024 453rd RobertHoeh 713 80 27 May 2024 453rd LorenzoDeGaspari 713 80 27 May 2024 453rd AstroOrbis 713 80 7 May 2025 453rd vgamula 🇺🇦 713 80 16 Jul 2025 453rd imoxyg 713 80 27 days ago 476th abba23 704 81 26 May 2022 476th docd 704 81 8 Aug 2022 476th Smetalo 704 81 25 Aug 2022 476th glesnick 704 81 6 Sep 2022 476th Yareeeema 704 81 3 Nov 2022 476th RandGuy 704 81 23 Nov 2022 476th GWStuart 704 81 19 Dec 2022 476th wa1ker38552 704 81 22 May 2023 476th LimaoC 704 81 11 Aug 2023 476th robertovers 704 81 2 Oct 2023 476th HanaEndUser 704 81 15 Feb 2024 476th Loag 704 81 22 Sep 2024 476th julian-hoelz 704 81 23 Sep 2024 476th JesseNoEyes 🇺🇸 704 81 4 Oct 2024 476th GoldStar184 704 81 27 Nov 2024 476th ihatethefrench 704 81 5 Jan 2025 476th csharpython 704 81 2 Aug 2025 493rd Ailko 🇧🇪 695 82 12 May 2022 493rd joshmoody24 695 82 12 May 2022 493rd andrewgopher 695 82 25 Jun 2022 493rd estomagordo 🇳🇱 695 82 26 Oct 2022 493rd ThatAlo 695 82 14 Nov 2022 493rd twocatsinatrenchcoat 695 82 29 Nov 2022 493rd aid-f 695 82 21 Mar 2023 493rd nooby31415 695 82 3 Nov 2023 493rd henrydukepickle 695 82 8 Dec 2023 493rd amollberg 🇸🇪 695 82 3 Jan 2024 493rd mrmena 🇦🇺 695 82 19 Mar 2024 493rd rifatx 695 82 16 Jul 2024 493rd NicoH76 695 82 24 Apr 2025 493rd 0dyse 695 82 29 Apr 2025 493rd some-function 695 82 2 Jul 2025 508th bonevbs 687 83 8 May 2022 508th feherd 687 83 20 May 2022 508th pbleich 687 83 24 Aug 2022 508th RoscoeSmith 687 83 20 Nov 2022 508th amadeusdotpng 687 83 22 Apr 2023 508th ross-i 687 83 5 Jul 2023 508th anonymaew 687 83 2 Aug 2023 508th mstang107 687 83 20 Dec 2023 508th LHLaurini 🇧🇷 687 83 26 Jun 2024 508th C0derX3 🇺🇸 687 83 18 Sep 2024 508th ComputerKWasTaken 🇺🇸 687 83 20 Jan 2025 508th Vexxter9 🇳🇱 687 83 4 Feb 2025 508th CodyKlingler 687 83 7 Feb 2025 508th OyuDays 687 83 17 Mar 2025 508th julianreece 687 83 29 Apr 2025 523rd Feniske 🇫🇷 679 84 7 Oct 2022 523rd Eilonlif 🇮🇱 679 84 29 Mar 2023 523rd mhsaul 679 84 11 Apr 2023 Prev 451–525 of 777 Next