Collatz in Python in chars. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Tower of Hanoi 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 Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 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 Erlang 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 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 Tower of Hanoi 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 Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 340th bknower 760 75 19ms 30 Jun 2025 340th clayboll99 760 75 21ms 14 Jul 2025 340th Nikinator2704 760 75 19ms 1 Nov 2025 340th mmoffitt 760 75 24ms 27 days ago 380th guilhem-roy 🇫🇷 750 76 24ms 5 May 2022 380th NewDefectus 🇮🇱 750 76 21ms 6 May 2022 380th CuboidRaptor 🇨🇦 750 76 23ms 25 May 2022 380th TheSmilingTurtle 750 76 26ms 5 Jun 2022 380th Romain-1 🇫🇷 750 76 18ms 8 Jun 2022 380th jhpaques 🇫🇷 750 76 25ms 30 Jul 2022 380th chriscianfarani 750 76 24ms 10 Aug 2022 380th eshilo-draper 750 76 22ms 13 Sep 2022 380th suwat513 750 76 19ms 22 Sep 2022 380th PogLop 🇨🇿 750 76 21ms 3 Nov 2022 380th Jaydosu 750 76 22ms 14 Nov 2022 380th tails618 750 76 26ms 2 Dec 2022 380th KevinLyvers 750 76 19ms 17 Dec 2022 380th nayakrujul 750 76 19ms 3 Jan 2023 380th CatsAreFluffy 750 76 24ms 18 Feb 2023 380th Schreipfelerer 750 76 26ms 9 Apr 2023 380th hm5822 750 76 25ms 22 Apr 2023 380th celiendonze 🇨🇭 750 76 25ms 5 Jul 2023 380th brochmann 🇸🇪 750 76 21ms 13 Aug 2023 380th Command-Master 750 76 35ms 2 Oct 2023 380th chartung17 750 76 20ms 17 Dec 2023 380th smokestacklightnin 🇺🇸 750 76 26ms 10 Jan 2024 380th NickTheEASDude 🇺🇸 750 76 51ms 26 Jan 2024 380th yuchuehw 750 76 25ms 2 Feb 2024 380th Azearia 750 76 26ms 26 Feb 2024 380th khavik 750 76 28ms 29 May 2024 380th Ythaenagor 750 76 23ms 5 Aug 2024 380th martion2007 750 76 49ms 9 Aug 2024 380th sjrct 750 76 25ms 10 Aug 2024 380th Mathrew2012 750 76 16ms 9 Nov 2024 380th kawrei 750 76 29ms 4 May 2025 380th mathieurodic 750 76 27ms 21 Oct 2025 380th yoikolover 750 76 23ms 5 days ago 413th cooljoseph1 740 77 23ms 6 May 2022 413th krcs 🇵🇱 740 77 21ms 11 May 2022 413th kenballus 740 77 22ms 13 Jul 2022 413th 104210 740 77 22ms 29 Jul 2022 413th andre-de-lorde 740 77 21ms 1 Sep 2022 413th zstephe 740 77 24ms 2 Dec 2022 413th badboj40 740 77 23ms 27 Dec 2022 413th henrytranter 740 77 27ms 11 Jan 2023 413th DragonaireM 740 77 23ms 6 Feb 2023 413th Ty-Cyr 740 77 18ms 14 Jul 2023 413th camieac 🇬🇧 740 77 21ms 14 Jul 2023 413th MisterrLuck 740 77 22ms 7 Sep 2023 413th alexjurkiewicz 🇦🇺 740 77 19ms 7 Nov 2023 413th askipio 740 77 23ms 22 Nov 2023 413th enbyte 740 77 19ms 9 Dec 2023 413th trinityy-7 740 77 23ms 17 Dec 2023 413th PyryL 🇫🇮 740 77 20ms 23 Aug 2024 413th CyberTapir 740 77 23ms 27 Aug 2024 413th junten1 740 77 26ms 20 Oct 2024 413th croc54 740 77 23ms 24 Dec 2024 413th za3k 740 77 23ms 3 Jun 2025 413th j-zhang43 740 77 19ms 17 Nov 2025 435th AGoyet 731 78 22ms 29 Jul 2022 435th RYNO8 731 78 21ms 16 Aug 2022 435th TheCod-r 🇦🇶 731 78 25ms 28 Sep 2022 435th Marthe-CC 731 78 23ms 9 Oct 2022 435th Wildst 731 78 20ms 2 Nov 2022 435th nmgetahun 731 78 22ms 4 Dec 2022 435th Techdude01 731 78 26ms 13 Dec 2022 435th tvcv901 731 78 23ms 22 Mar 2023 435th oceko 731 78 19ms 24 Mar 2023 435th yoyoyonono 731 78 25ms 15 May 2023 435th Nic0M 731 78 18ms 13 Aug 2023 435th ssbhatt4321 731 78 23ms 14 Oct 2023 435th wyarde 731 78 19ms 7 Nov 2023 435th ItsEthanXYZ 731 78 19ms 24 Dec 2023 435th adamreidsmith 731 78 25ms 16 Feb 2024 435th DGipe 731 78 22ms 13 May 2024 First Prev 376–450 of 810 Next Last
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