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 599th befoster 701 97 22 Feb 2024 599th joshua-el-samalouti 🇩🇪 701 97 26 May 2024 599th luca1339 701 97 10 Jun 2024 604th lukemalek 694 98 10 Oct 2022 604th UltimateGuy0987 694 98 14 Oct 2022 604th TheLazySquid 694 98 20 Dec 2022 604th StronkCheese 🇺🇸 694 98 13 Mar 2023 604th Anthony-Williams-06 694 98 17 Oct 2023 604th NoneTheFewer 694 98 17 May 2024 604th abcdhhhh 694 98 27 Aug 2024 604th OSYCh314 🇦🇺 694 98 16 Nov 2024 604th cole-wilson 694 98 9 Dec 2024 604th Akilles1 694 98 15 May 2025 614th LukeRichardson-dev 687 99 12 May 2022 614th Tagfox 687 99 18 Jul 2022 614th gabrielsqw 687 99 24 Oct 2023 614th sciencedjinn 687 99 8 Nov 2024 614th MrNiknoc 687 99 13 hours ago 619th OppositeShark 680 100 19 Jul 2022 619th NOS4A5I 680 100 10 Jan 2023 619th lomarbrick 680 100 16 May 2023 619th karlaacastro44 680 100 5 May 2025 623rd markus-rekdal 673 101 10 May 2022 623rd fraserli 🇦🇺 673 101 2 May 2023 623rd FCORMERAIS 673 101 6 Mar 2024 623rd yhm138 673 101 16 Feb 2025 627th PogLop 🇨🇿 667 102 31 Oct 2022 627th AndersH3 🇸🇪 667 102 17 May 2023 627th JulieGermainUNT 667 102 2 Apr 2025 630th enbyte 660 103 20 Dec 2022 630th rajlath 660 103 7 Jan 2023 630th mnurzia 660 103 12 Oct 2023 630th sqrteipi 660 103 2 Apr 2024 630th calum12345 660 103 26 Mar 2025 635th winigo3 654 104 8 Aug 2022 635th zt14427 654 104 30 Apr 2023 635th IoLimmer 654 104 24 Jul 2024 638th LordSir101 648 105 19 Jul 2022 638th tmanternach 648 105 24 Nov 2022 638th weber-hge 648 105 13 Jun 2023 638th Eugen-str 648 105 24 Oct 2023 642nd ms-tingliang 642 106 5 Aug 2022 642nd achilleasr 642 106 7 Nov 2022 642nd OleBrumm 642 106 8 Jan 2023 642nd AbhilashaTandon 642 106 19 Sep 2023 642nd sheeperino 🇮🇹 642 106 11 Oct 2024 647th phpboyscout 636 107 18 May 2023 647th DrPrettyman 636 107 5 Jul 2023 647th joseph-w0ng 636 107 5 Jul 2024 647th EnisEfe0 636 107 27 days ago 651st landyrisbad 630 108 13 Nov 2022 651st cakular 630 108 17 May 2024 651st glassala 630 108 25 Oct 2024 654th tjefferson401 624 109 16 Sep 2022 654th ariesmarinus 624 109 21 Nov 2024 656th profJGermain 618 110 7 Feb 2024 656th JMMMMC 618 110 23 Oct 2024 656th jtb0362 618 110 10 May 2025 659th sagnik3 607 112 8 Aug 2022 659th craftablescience 607 112 19 Sep 2023 661st kelseychristensen 602 113 2 Nov 2022 661st ArmsTheLimited 602 113 1 Jun 2023 663rd HunterC14 596 114 18 Oct 2024 664th jstechman 591 115 24 Feb 2024 664th dan422442 591 115 19 Oct 2024 666th keelanfh 586 116 20 Dec 2023 666th returnitynet 586 116 27 Jan 2025 668th gioto64 581 117 8 Dec 2022 668th WilfredSalmon 581 117 21 Oct 2023 670th XianchengZ 576 118 18 Aug 2023 670th brindak2005 576 118 2 May 2025 672nd jmmographer 557 122 21 Oct 2023 673rd xbxbxb007 553 123 10 Jan 2024 674th kevinnaviapaiva 527 129 20 Feb 2025 675th AdrianN001 523 130 6 Aug 2023 Prev 601–675 of 733 Next