Collatz in Python in bytes. 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 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 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 Transpose Sentence 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 Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 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 Transpose Sentence 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 Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 600th UltimateGuy0987 694 98 14 Oct 2022 600th TheLazySquid 694 98 20 Dec 2022 600th StronkCheese 🇺🇸 694 98 13 Mar 2023 600th Anthony-Williams-06 694 98 17 Oct 2023 600th NoneTheFewer 694 98 17 May 2024 600th abcdhhhh 694 98 27 Aug 2024 600th OSYCh314 🇦🇺 694 98 16 Nov 2024 600th cole-wilson 694 98 9 Dec 2024 600th Akilles1 694 98 19 days ago 610th LukeRichardson-dev 687 99 12 May 2022 610th Tagfox 687 99 18 Jul 2022 610th gabrielsqw 687 99 24 Oct 2023 610th sciencedjinn 687 99 8 Nov 2024 614th OppositeShark 680 100 19 Jul 2022 614th NOS4A5I 680 100 10 Jan 2023 614th lomarbrick 680 100 16 May 2023 614th karlaacastro44 680 100 5 May 2025 618th markus-rekdal 673 101 10 May 2022 618th fraserli 🇦🇺 673 101 2 May 2023 618th FCORMERAIS 673 101 6 Mar 2024 618th yhm138 673 101 16 Feb 2025 622nd PogLop 🇨🇿 667 102 31 Oct 2022 622nd AndersH3 🇸🇪 667 102 17 May 2023 622nd JulieGermainUNT 667 102 2 Apr 2025 625th enbyte 660 103 20 Dec 2022 625th rajlath 660 103 7 Jan 2023 625th mnurzia 660 103 12 Oct 2023 625th sqrteipi 660 103 2 Apr 2024 625th calum12345 660 103 26 Mar 2025 630th winigo3 654 104 8 Aug 2022 630th zt14427 654 104 30 Apr 2023 630th IoLimmer 654 104 24 Jul 2024 633rd LordSir101 648 105 19 Jul 2022 633rd tmanternach 648 105 24 Nov 2022 633rd weber-hge 648 105 13 Jun 2023 633rd Eugen-str 648 105 24 Oct 2023 637th ms-tingliang 642 106 5 Aug 2022 637th achilleasr 642 106 7 Nov 2022 637th OleBrumm 642 106 8 Jan 2023 637th AbhilashaTandon 642 106 19 Sep 2023 637th sheeperino 🇮🇹 642 106 11 Oct 2024 642nd phpboyscout 636 107 18 May 2023 642nd DrPrettyman 636 107 5 Jul 2023 642nd joseph-w0ng 636 107 5 Jul 2024 642nd EnisEfe0 636 107 15 days ago 646th landyrisbad 630 108 13 Nov 2022 646th cakular 630 108 17 May 2024 646th glassala 630 108 25 Oct 2024 649th tjefferson401 624 109 16 Sep 2022 649th ariesmarinus 624 109 21 Nov 2024 651st profJGermain 618 110 7 Feb 2024 651st JMMMMC 618 110 23 Oct 2024 651st jtb0362 618 110 24 days ago 654th sagnik3 607 112 8 Aug 2022 654th craftablescience 607 112 19 Sep 2023 656th kelseychristensen 602 113 2 Nov 2022 656th ArmsTheLimited 602 113 1 Jun 2023 658th HunterC14 596 114 18 Oct 2024 659th jstechman 591 115 24 Feb 2024 659th dan422442 591 115 19 Oct 2024 661st keelanfh 586 116 20 Dec 2023 661st returnitynet 586 116 27 Jan 2025 663rd gioto64 581 117 8 Dec 2022 663rd WilfredSalmon 581 117 21 Oct 2023 665th XianchengZ 576 118 18 Aug 2023 665th brindak2005 576 118 2 May 2025 667th jmmographer 557 122 21 Oct 2023 668th xbxbxb007 553 123 10 Jan 2024 669th kevinnaviapaiva 527 129 20 Feb 2025 670th AdrianN001 523 130 6 Aug 2023 671st wyatt-the-hump 519 131 24 Dec 2022 671st hotmanga 519 131 20 Oct 2023 671st Jordynar02 519 131 3 May 2025 674th Zach10za 511 133 23 Jan 2024 675th vtilde 507 134 8 Jan 2024 Prev 601–675 of 728 Next