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 674th TheLazySquid 582 98 21ms 20 Dec 2022 674th StronkCheese 🇺🇸 582 98 19ms 13 Mar 2023 674th Anthony-Williams-06 582 98 29ms 17 Oct 2023 674th abcdhhhh 582 98 17ms 27 Aug 2024 674th OSYCh314 🇦🇺 582 98 24ms 16 Nov 2024 674th cole-wilson 582 98 19ms 9 Dec 2024 674th Akilles1 582 98 21ms 15 May 2025 674th Hyperoplex145 582 98 18ms 11 Nov 2025 684th LukeRichardson-dev 576 99 15ms 12 May 2022 684th Tagfox 576 99 18ms 18 Jul 2022 684th gabrielsqw 576 99 23ms 24 Oct 2023 684th sciencedjinn 576 99 16ms 8 Nov 2024 684th MrNiknoc 576 99 18ms 15 Jun 2025 689th OppositeShark 570 100 18ms 19 Jul 2022 689th NOS4A5I 570 100 17ms 10 Jan 2023 689th lomarbrick 570 100 17ms 16 May 2023 689th karlaacastro44 570 100 19ms 5 May 2025 693rd markus-rekdal 564 101 24ms 10 May 2022 693rd fraserli 🇦🇺 564 101 25ms 2 May 2023 693rd FCORMERAIS 564 101 17ms 6 Mar 2024 693rd yhm138 564 101 13ms 16 Feb 2025 693rd MinecraftFan69420 564 101 21ms 31 Oct 2025 698th AndersH3 🇸🇪 559 102 14ms 17 May 2023 698th JulieGermainUNT 559 102 20ms 2 Apr 2025 698th NicoBliss 559 102 22ms 25 days ago 701st rajlath 553 103 21ms 7 Jan 2023 701st mnurzia 553 103 15ms 12 Oct 2023 701st sqrteipi 553 103 19ms 2 Apr 2024 701st calum12345 553 103 19ms 26 Mar 2025 701st SectorCorruptor 553 103 24ms 14 Aug 2025 706th winigo3 548 104 23ms 8 Aug 2022 706th zt14427 548 104 19ms 30 Apr 2023 706th IoLimmer 548 104 19ms 24 Jul 2024 709th LordSir101 543 105 17ms 19 Jul 2022 709th tmanternach 543 105 19ms 24 Nov 2022 709th weber-hge 543 105 15ms 13 Jun 2023 709th Eugen-str 543 105 19ms 24 Oct 2023 713th ms-tingliang 538 106 14ms 5 Aug 2022 713th achilleasr 538 106 18ms 7 Nov 2022 713th OleBrumm 538 106 19ms 8 Jan 2023 713th AbhilashaTandon 538 106 23ms 19 Sep 2023 713th sheeperino 🇮🇹 538 106 19ms 11 Oct 2024 718th phpboyscout 533 107 16ms 18 May 2023 718th DrPrettyman 533 107 15ms 5 Jul 2023 718th joseph-w0ng 533 107 14ms 5 Jul 2024 718th EnisEfe0 533 107 24ms 18 May 2025 722nd landyrisbad 528 108 20ms 13 Nov 2022 722nd cakular 528 108 27ms 17 May 2024 722nd glassala 528 108 16ms 25 Oct 2024 722nd CarterStroik 528 108 19ms 12 Nov 2025 726th tjefferson401 523 109 27ms 16 Sep 2022 726th ariesmarinus 523 109 17ms 21 Nov 2024 728th profJGermain 518 110 19ms 7 Feb 2024 728th JMMMMC 518 110 20ms 23 Oct 2024 728th jtb0362 518 110 19ms 10 May 2025 731st sagnik3 509 112 18ms 8 Aug 2022 731st craftablescience 509 112 17ms 19 Sep 2023 733rd kelseychristensen 504 113 19ms 2 Nov 2022 733rd ArmsTheLimited 504 113 14ms 1 Jun 2023 735th HunterC14 500 114 26ms 18 Oct 2024 736th jstechman 496 115 20ms 24 Feb 2024 736th dan422442 496 115 19ms 19 Oct 2024 738th keelanfh 491 116 16ms 20 Dec 2023 738th returnitynet 491 116 16ms 27 Jan 2025 738th EthanPatel01000101 491 116 16ms 20 Oct 2025 741st gioto64 487 117 16ms 8 Dec 2022 741st WilfredSalmon 487 117 16ms 21 Oct 2023 743rd XianchengZ 483 118 18ms 18 Aug 2023 743rd brindak2005 483 118 16ms 2 May 2025 745th jmmographer 467 122 22ms 21 Oct 2023 745th RucatJ 467 122 17ms 8 Aug 2025 747th xbxbxb007 463 123 21ms 10 Jan 2024 748th kevinnaviapaiva 442 129 17ms 20 Feb 2025 749th AdrianN001 438 130 17ms 6 Aug 2023 750th wyatt-the-hump 435 131 15ms 24 Dec 2022 First Prev 676–750 of 809 Next Last
