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 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 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 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 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers 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 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 Erlang 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 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 Erlang 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 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 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 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Bytes Time 520th simplylu 810 84 5 Jan 2025 520th WillowWispy 810 84 14 Mar 2025 520th rustykitty 810 84 2 May 2025 520th VedJosh 810 84 3 May 2025 520th hetz2625 810 84 4 May 2025 531st aazuspan 800 85 15 Jun 2022 531st myleopard 800 85 20 Jul 2022 531st LukasFolwarczny 🇨🇿 800 85 16 Sep 2022 531st SB-945 800 85 7 Feb 2024 531st aaardwark 800 85 1 Jun 2025 531st kmathis22 800 85 22 days ago 537th MichaelMBradley 🇨🇦 791 86 5 Jun 2022 537th Lemonz-13223 791 86 21 Sep 2022 537th Bodo171 791 86 24 Nov 2022 537th shibacho 🇯🇵 791 86 25 Nov 2022 537th Vaekor 791 86 9 Jul 2023 537th LeoVanderSteege 791 86 18 Nov 2023 537th Pale-Vessel 791 86 18 Dec 2023 537th tik25 791 86 28 Mar 2024 537th willschremmer 791 86 27 Apr 2024 537th jamiloBBKing 791 86 27 Jan 2025 537th AsishKunta 791 86 1 Apr 2025 537th Hemanthred2005 791 86 1 Apr 2025 537th Voltrifrodec 🇸🇰 791 86 19 Apr 2025 537th lurey99 791 86 23 Apr 2025 537th Alban-Boissard 791 86 14 Jun 2025 537th Arkadios200 791 86 11 days ago 553rd ToE42 782 87 19 Oct 2022 553rd omri2001 782 87 19 Oct 2022 553rd Skallos-s 782 87 5 Dec 2022 553rd damoc1es 782 87 16 Apr 2023 553rd michelebastione 🇮🇹 782 87 20 Dec 2023 553rd clampcorder 782 87 24 Jan 2024 553rd GitQuick 782 87 23 Feb 2024 553rd EricSchraf 782 87 21 Mar 2024 553rd salvatore-abello 782 87 5 Sep 2024 553rd PotatoSaladOverlord 782 87 21 May 2025 553rd Ibozz91 782 87 8 Jun 2025 564th Andre3582 773 88 29 Oct 2022 564th Darknova2468 773 88 20 Nov 2022 564th Solsticely 773 88 20 Nov 2022 564th goGuru 773 88 21 Dec 2022 564th msbranicky 773 88 9 Aug 2023 564th gussy420 773 88 28 Oct 2023 564th Shynif 773 88 21 Feb 2024 564th asterized 773 88 24 Aug 2024 564th hippopotam00sehead 🇨🇦 773 88 11 Sep 2024 564th 08jne01 773 88 21 Nov 2024 564th davidludwik2370 773 88 18 days ago 575th lovernj 764 89 23 Aug 2022 575th Roj 764 89 20 Nov 2022 575th aeonsablaze 764 89 22 Nov 2022 575th buddyw 764 89 9 Mar 2023 575th VV1Git 764 89 28 Mar 2023 575th dranjohn 764 89 17 Sep 2023 575th ArenaGrenade 764 89 19 Feb 2024 575th NanduBC 764 89 6 Sep 2024 575th TheAtrossian 764 89 5 Jan 2025 575th KimJua41 764 89 4 May 2025 575th Upload-and-View 🇺🇦 764 89 20 Aug 2025 586th StoverGitHub 756 90 16 Jun 2022 586th jamespeilunli 756 90 4 Jul 2022 586th TrentGlimp 756 90 3 Sep 2022 586th Ugoran 756 90 19 Nov 2022 586th PATTRIM 756 90 5 Jan 2023 586th charliegaming 756 90 3 Oct 2023 586th lhulinsky 756 90 22 Oct 2024 586th bthalheim 756 90 6 Dec 2024 586th nooby31415 756 90 18 Apr 2025 586th SinArieh 756 90 4 May 2025 586th islptng 756 90 7 Jul 2025 597th AbelPelser 747 91 3 Jul 2022 597th Seis 747 91 9 Dec 2022 597th r-i-c-e 747 91 9 Jul 2023 597th joshcors 747 91 30 Jun 2024 First Prev 526–600 of 780 Next Last