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 373rd TheSmilingTurtle 750 76 5 Jun 2022 373rd Romain-1 🇫🇷 750 76 8 Jun 2022 373rd jhpaques 🇫🇷 750 76 30 Jul 2022 373rd chriscianfarani 750 76 10 Aug 2022 373rd eshilo-draper 750 76 13 Sep 2022 373rd suwat513 750 76 22 Sep 2022 373rd PogLop 🇨🇿 750 76 3 Nov 2022 373rd Jaydosu 750 76 14 Nov 2022 373rd tails618 750 76 2 Dec 2022 373rd KevinLyvers 750 76 17 Dec 2022 373rd nayakrujul 750 76 3 Jan 2023 373rd CatsAreFluffy 750 76 18 Feb 2023 373rd Schreipfelerer 750 76 9 Apr 2023 373rd hm5822 750 76 22 Apr 2023 373rd celiendonze 🇨🇭 750 76 5 Jul 2023 373rd brochmann 🇸🇪 750 76 13 Aug 2023 373rd Command-Master 750 76 2 Oct 2023 373rd chartung17 750 76 17 Dec 2023 373rd smokestacklightnin 🇺🇸 750 76 10 Jan 2024 373rd NickTheEASDude 🇺🇸 750 76 26 Jan 2024 373rd yuchuehw 750 76 2 Feb 2024 373rd Azearia 750 76 26 Feb 2024 373rd khavik 750 76 29 May 2024 373rd Ythaenagor 750 76 5 Aug 2024 373rd martion2007 750 76 9 Aug 2024 373rd sjrct 750 76 10 Aug 2024 373rd Mathrew2012 750 76 9 Nov 2024 373rd kawrei 750 76 4 May 2025 373rd mathieurodic 750 76 4 hours ago 405th cooljoseph1 740 77 6 May 2022 405th krcs 🇵🇱 740 77 11 May 2022 405th kenballus 740 77 13 Jul 2022 405th 104210 740 77 29 Jul 2022 405th andre-de-lorde 740 77 1 Sep 2022 405th zstephe 740 77 2 Dec 2022 405th badboj40 740 77 27 Dec 2022 405th henrytranter 740 77 11 Jan 2023 405th DragonaireM 740 77 6 Feb 2023 405th Ty-Cyr 740 77 14 Jul 2023 405th camieac 🇬🇧 740 77 14 Jul 2023 405th MisterrLuck 740 77 7 Sep 2023 405th alexjurkiewicz 🇦🇺 740 77 7 Nov 2023 405th askipio 740 77 22 Nov 2023 405th enbyte 740 77 9 Dec 2023 405th trinityy-7 740 77 17 Dec 2023 405th PyryL 🇫🇮 740 77 23 Aug 2024 405th CyberTapir 740 77 27 Aug 2024 405th junten1 740 77 20 Oct 2024 405th croc54 740 77 24 Dec 2024 405th za3k 740 77 3 Jun 2025 426th AGoyet 731 78 29 Jul 2022 426th RYNO8 731 78 16 Aug 2022 426th TheCod-r 🇦🇶 731 78 28 Sep 2022 426th Marthe-CC 731 78 9 Oct 2022 426th Wildst 731 78 2 Nov 2022 426th nmgetahun 731 78 4 Dec 2022 426th Techdude01 731 78 13 Dec 2022 426th tvcv901 731 78 22 Mar 2023 426th oceko 731 78 24 Mar 2023 426th yoyoyonono 731 78 15 May 2023 426th Nic0M 731 78 13 Aug 2023 426th ssbhatt4321 731 78 14 Oct 2023 426th wyarde 731 78 7 Nov 2023 426th EthanJ-Brady 731 78 24 Dec 2023 426th adamreidsmith 731 78 16 Feb 2024 426th DGipe 731 78 13 May 2024 426th cyxv 731 78 2 Aug 2024 426th Europe2048 731 78 24 Nov 2024 426th GeneralFabian 731 78 14 Dec 2024 445th kevdah 722 79 27 May 2022 445th jacklynnepenick 722 79 22 Jun 2022 445th james-downey 722 79 9 Jul 2022 445th 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