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 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 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 Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters 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 Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Star Wars GPT 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 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 Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters 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 Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Star Wars GPT Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 443rd henrydukepickle 695 82 8 Dec 2023 443rd amollberg 🇸🇪 695 82 3 Jan 2024 443rd mrmena 🇦🇺 695 82 19 Mar 2024 443rd rifatx 695 82 16 Jul 2024 455th bonevbs 687 83 8 May 2022 455th feherd 687 83 20 May 2022 455th pbleich 687 83 24 Aug 2022 455th RoscoeSmith 687 83 20 Nov 2022 455th amadeusdotpng 687 83 22 Apr 2023 455th ross-i 687 83 5 Jul 2023 455th anonymaew 687 83 2 Aug 2023 455th mstang107 687 83 20 Dec 2023 455th LHLaurini 🇧🇷 687 83 26 Jun 2024 455th C0derX3 🇺🇸 687 83 18 Sep 2024 455th ComputerKWasTaken 🇺🇸 687 83 20 Jan 2025 455th Vexxter9 🇳🇱 687 83 4 Feb 2025 455th CodyKlingler 687 83 7 Feb 2025 455th OyuDays 687 83 16 days ago 469th Feniske 🇫🇷 679 84 7 Oct 2022 469th Eilonlif 🇮🇱 679 84 29 Mar 2023 469th mhsaul 679 84 11 Apr 2023 469th Phyisis 679 84 30 Apr 2024 469th MaxCastella 🇫🇷 679 84 11 Oct 2024 469th SURAJMITTAL 679 84 17 Dec 2024 469th simplylu 679 84 5 Jan 2025 469th WillowWispy 679 84 20 days ago 477th aazuspan 671 85 15 Jun 2022 477th myleopard 671 85 20 Jul 2022 477th LukasFolwarczny 🇨🇿 671 85 16 Sep 2022 480th MichaelMBradley 🇨🇦 663 86 5 Jun 2022 480th Lemonz-13223 663 86 21 Sep 2022 480th za3k 663 86 11 Oct 2022 480th Bodo171 663 86 24 Nov 2022 480th shibacho 🇯🇵 663 86 25 Nov 2022 480th Vaekor 663 86 9 Jul 2023 480th LeoVanderSteege 663 86 18 Nov 2023 480th Pale-Vessel 663 86 18 Dec 2023 480th tik25 663 86 28 Mar 2024 480th willschremmer 663 86 27 Apr 2024 480th jamiloBBKing 663 86 27 Jan 2025 480th AsishKunta 663 86 47 hours ago 480th Hemanthred2005 663 86 45 hours ago 493rd ToE42 655 87 19 Oct 2022 493rd omri2001 655 87 19 Oct 2022 493rd Skallos-s 655 87 5 Dec 2022 493rd PotatoSaladOverlord 655 87 15 Mar 2023 493rd damoc1es 655 87 16 Apr 2023 493rd michelebastione 🇮🇹 655 87 20 Dec 2023 493rd clampcorder 655 87 24 Jan 2024 493rd GitQuick 655 87 23 Feb 2024 493rd EricSchraf 655 87 21 Mar 2024 502nd Andre3582 648 88 29 Oct 2022 502nd Darknova2468 648 88 20 Nov 2022 502nd Solsticely 648 88 20 Nov 2022 502nd goGuru 648 88 21 Dec 2022 502nd msbranicky 648 88 9 Aug 2023 502nd gussy420 648 88 28 Oct 2023 502nd Shynif 648 88 21 Feb 2024 502nd somehybrid 648 88 24 Aug 2024 502nd hippopotam00sehead 🇨🇦 648 88 11 Sep 2024 502nd 08jne01 648 88 21 Nov 2024 502nd rustykitty 648 88 11 days ago 513th lovernj 640 89 23 Aug 2022 513th Roj 640 89 20 Nov 2022 513th aeonsablaze 640 89 22 Nov 2022 513th buddyw 640 89 9 Mar 2023 513th VV1Git 640 89 28 Mar 2023 513th dranjohn 640 89 17 Sep 2023 513th ArenaGrenade 640 89 19 Feb 2024 513th NanduBC 640 89 6 Sep 2024 513th TheAtrossian 640 89 5 Jan 2025 522nd StoverGitHub 633 90 16 Jun 2022 522nd jamespeilunli 633 90 4 Jul 2022 522nd TrentGlimp 633 90 3 Sep 2022 522nd Ugoran 633 90 19 Nov 2022 Prev 451–525 of 671 Next