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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 204th Bulmenisaurus 781 73 23ms 2 Mar 2025 204th souta-1326 781 73 31ms 1 Apr 2025 204th BenjaminHGong 781 73 21ms 26 May 2025 204th FEZfan 🇦🇺 781 73 23ms 11 Jul 2025 204th wuduculfre 781 73 21ms 28 Jul 2025 204th BREMAUCY 🇫🇷 781 73 21ms 24 Aug 2025 204th FortuiteMan 🇫🇷 781 73 21ms 28 Sep 2025 204th miaoaixuan 781 73 22ms 30 Sep 2025 204th Lv0Sys 🇵🇱 781 73 24ms 7 Dec 2025 204th zacharysfrazee 781 73 21ms 11 Jan 2026 204th bpharaldsson 781 73 22ms 6 Feb 2026 204th Zin9zan9 781 73 19ms 11 days ago 253rd TobyBoyne 🇬🇧 770 74 20ms 4 May 2022 253rd RDShah 770 74 21ms 6 May 2022 253rd Indivicivet 770 74 21ms 9 May 2022 253rd CedricGebistorf 770 74 20ms 9 May 2022 253rd ophact 770 74 23ms 11 May 2022 253rd ImpressedByRocks 770 74 20ms 17 May 2022 253rd LHuitre 770 74 20ms 2 Jun 2022 253rd neihousaigaai 770 74 18ms 8 Jun 2022 253rd rowboat1 770 74 21ms 10 Jun 2022 253rd inverseLorentz 🇦🇺 770 74 19ms 13 Jun 2022 253rd clementblaudeau 770 74 24ms 29 Jun 2022 253rd adoxography 770 74 19ms 13 Jul 2022 253rd Attero 🇸🇪 770 74 21ms 20 Jul 2022 253rd Heathcorp 🇦🇺 770 74 23ms 27 Jul 2022 253rd jfallon1997 770 74 20ms 11 Aug 2022 253rd VictorFordham 770 74 26ms 26 Aug 2022 253rd georgehulme 770 74 20ms 1 Sep 2022 253rd smartiel 770 74 21ms 15 Sep 2022 253rd trist224 🇫🇷 770 74 19ms 21 Sep 2022 253rd Kloppermand 🇩🇰 770 74 22ms 7 Oct 2022 253rd knutae 🇳🇴 770 74 20ms 9 Oct 2022 253rd Troon 770 74 20ms 14 Oct 2022 253rd MaxElf999 770 74 21ms 14 Oct 2022 253rd SniperSmiley 🇺🇸 770 74 20ms 6 Dec 2022 253rd elephantpanda 770 74 21ms 10 Dec 2022 253rd ArthurBond 770 74 21ms 19 Dec 2022 253rd Larspolo 770 74 19ms 25 Dec 2022 253rd dcc5480 770 74 19ms 12 Jan 2023 253rd Ripick 770 74 20ms 1 Feb 2023 253rd m3nt0ras 🇬🇷 770 74 21ms 3 Feb 2023 253rd Skwerl23 770 74 20ms 5 Feb 2023 253rd frankgraziano 770 74 19ms 19 Feb 2023 253rd KenanHanke 770 74 23ms 21 Feb 2023 253rd DanielPeterssonAI 770 74 19ms 13 Mar 2023 253rd jiaminglimjm 🇲🇾 770 74 20ms 20 Mar 2023 253rd ejini6969 770 74 20ms 22 Mar 2023 253rd GulgDev 770 74 20ms 22 Mar 2023 253rd vrnprkh 770 74 21ms 30 Mar 2023 253rd RuyiLi 770 74 20ms 1 Apr 2023 253rd StardustGogeta 770 74 20ms 7 May 2023 253rd zbreit 🇺🇸 770 74 20ms 7 May 2023 253rd kyleclaassen 770 74 21ms 20 May 2023 253rd mbittner20 770 74 20ms 27 May 2023 253rd tweska 🇳🇱 770 74 19ms 5 Jun 2023 253rd cros107 🇦🇺 770 74 19ms 11 Aug 2023 253rd yourlefthandman 770 74 21ms 16 Aug 2023 253rd daisyyedda 770 74 20ms 17 Aug 2023 253rd cesarm4 770 74 22ms 29 Aug 2023 253rd midnattssol 🇸🇪 770 74 22ms 22 Sep 2023 253rd lambda-abstraction 770 74 22ms 21 Oct 2023 253rd levavft 770 74 19ms 26 Oct 2023 253rd Buecherfresser 770 74 19ms 22 Nov 2023 253rd anarconic 770 74 54ms 8 Dec 2023 253rd azure-blondon 770 74 20ms 11 Dec 2023 253rd kurkale6ka 770 74 22ms 20 Dec 2023 253rd Anonymousellama21 770 74 22ms 14 Mar 2024 253rd Bmrl7 770 74 20ms 23 Mar 2024 253rd cefqrn 770 74 22ms 26 May 2024 253rd drochom 770 74 21ms 18 Jun 2024 253rd hiichbindermax 770 74 20ms 22 Jun 2024 253rd cykim8811 770 74 52ms 11 Jul 2024 253rd imelxr 🇮🇱 770 74 25ms 17 Aug 2024 253rd EnTerr 770 74 23ms 25 Aug 2024 253rd Mabeloid 🇳🇴 770 74 29ms 1 Sep 2024 253rd LostSyntax21 🇬🇧 770 74 21ms 10 Sep 2024 253rd Deedogg 770 74 21ms 11 Sep 2024 253rd MassimoParisi 770 74 25ms 18 Sep 2024 253rd agreegious 770 74 21ms 17 Nov 2024 First Prev 241–320 of 850 Next Last