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 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 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 Apéry’s Constant Binary Lambda Calculus 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 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 ArkScript 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 ><> 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 ArkScript 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 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 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 Apéry’s Constant Binary Lambda Calculus 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 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 637th resoNathan 626 91 17ms 9 Jul 2024 637th jameswmccarty 626 91 22ms 24 Sep 2024 637th hamilton-bonds 626 91 18ms 12 Nov 2024 637th Wonamm 626 91 30ms 14 Feb 2025 645th TimLeffke 620 92 22ms 17 Aug 2022 645th Rythoka 620 92 16ms 17 Oct 2022 645th UriyaBA 620 92 17ms 19 Mar 2023 645th VladislavGitter 🇪🇸 620 92 20ms 14 Nov 2023 645th ridingqwerty 🇺🇸 620 92 16ms 22 Dec 2023 645th Thonoton 620 92 19ms 1 Feb 2024 645th OCNeve 620 92 20ms 17 Jun 2024 645th themoonisacheese 620 92 24ms 25 Feb 2025 645th BabySharkHi 620 92 23ms 22 Apr 2025 645th arjunarya1 620 92 16ms 28 Aug 2025 645th TJK-S 620 92 20ms 10 Oct 2025 656th Bananapants22 613 93 26ms 4 Sep 2022 656th jaxmattfair 🇺🇸 613 93 19ms 10 Jan 2023 656th fenix-bear 613 93 22ms 18 Nov 2023 656th epic-programmer-guy 613 93 22ms 22 Dec 2023 656th brimstonetrader 613 93 24ms 18 Nov 2024 656th HunterC14 613 93 26ms 12 hours ago 662nd atazzam 🇺🇸 606 94 17ms 18 May 2022 662nd rohangpta 606 94 17ms 8 Aug 2022 662nd shinylego 606 94 19ms 14 Sep 2022 662nd sgaltair 606 94 20ms 4 Nov 2022 662nd TotoAJ 606 94 20ms 15 Dec 2023 662nd Gusic06 606 94 19ms 6 May 2024 662nd kyleyarwood 606 94 21ms 6 Oct 2024 662nd jj0786-cell 606 94 22ms 1 Apr 2025 662nd griffinschreiber 606 94 20ms 1 Apr 2025 662nd o800 606 94 20ms 17 Nov 2025 672nd felixcroc 600 95 19ms 30 Mar 2023 672nd Pyro569 600 95 20ms 4 Jul 2023 672nd rm-rf-innocence 600 95 20ms 19 Dec 2023 672nd Bit125 600 95 19ms 30 Jan 2024 672nd aalec 600 95 21ms 25 Apr 2024 672nd strogor 600 95 20ms 13 Jun 2025 672nd cthierfelder 🇲🇨 600 95 20ms 17 Jul 2025 672nd ThomasDelepine 600 95 21ms 29 Oct 2025 680th karhuthebear 594 96 24ms 9 May 2022 680th qwjhvbxi 594 96 21ms 6 Feb 2024 680th alfonsoalves 594 96 20ms 21 Jul 2024 680th jeff-re 594 96 14ms 1 Apr 2025 684th a-penton 588 97 17ms 22 Sep 2022 684th jrbud 588 97 22ms 6 Jan 2024 684th befoster 588 97 22ms 22 Feb 2024 684th joshua-el-samalouti 🇩🇪 588 97 20ms 26 May 2024 684th luca1339 588 97 20ms 10 Jun 2024 689th lukemalek 582 98 14ms 10 Oct 2022 689th UltimateGuy0987 582 98 20ms 14 Oct 2022 689th TheLazySquid 582 98 21ms 20 Dec 2022 689th StronkCheese 🇺🇸 582 98 21ms 13 Mar 2023 689th Anthony-Williams-06 582 98 27ms 17 Oct 2023 689th abcdhhhh 582 98 15ms 27 Aug 2024 689th OSYCh314 🇦🇺 582 98 26ms 16 Nov 2024 689th cole-wilson 582 98 19ms 9 Dec 2024 689th Akilles1 582 98 20ms 15 May 2025 689th Hyperoplex145 582 98 21ms 11 Nov 2025 699th LukeRichardson-dev 576 99 15ms 12 May 2022 699th Tagfox 576 99 20ms 18 Jul 2022 699th gabrielsqw 576 99 23ms 24 Oct 2023 699th sciencedjinn 576 99 20ms 8 Nov 2024 699th MrNiknoc 576 99 18ms 15 Jun 2025 704th OppositeShark 570 100 18ms 19 Jul 2022 704th NOS4A5I 570 100 19ms 10 Jan 2023 704th lomarbrick 570 100 18ms 16 May 2023 704th karlaacastro44 570 100 18ms 5 May 2025 708th markus-rekdal 564 101 26ms 10 May 2022 708th fraserli 🇦🇺 564 101 23ms 2 May 2023 708th FCORMERAIS 564 101 19ms 6 Mar 2024 708th yhm138 564 101 14ms 16 Feb 2025 708th MinecraftFan69420 564 101 21ms 31 Oct 2025 713th AndersH3 🇸🇪 559 102 16ms 17 May 2023 713th JulieGermainUNT 559 102 20ms 2 Apr 2025 713th NicoBliss 559 102 23ms 16 Nov 2025 716th rajlath 553 103 19ms 7 Jan 2023 716th mnurzia 553 103 17ms 12 Oct 2023 716th sqrteipi 553 103 20ms 2 Apr 2024 716th calum12345 553 103 19ms 26 Mar 2025 720th winigo3 548 104 24ms 8 Aug 2022 First Prev 641–720 of 823 Next Last
