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 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 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 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi 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 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 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 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 675th Tagfox 636 99 20ms 18 Jul 2022 675th gabrielsqw 636 99 23ms 24 Oct 2023 675th sciencedjinn 636 99 16ms 8 Nov 2024 675th MrNiknoc 636 99 19ms 15 Jun 2025 680th OppositeShark 630 100 18ms 19 Jul 2022 680th NOS4A5I 630 100 16ms 10 Jan 2023 680th lomarbrick 630 100 18ms 16 May 2023 680th karlaacastro44 630 100 16ms 5 May 2025 684th markus-rekdal 624 101 23ms 10 May 2022 684th fraserli 🇦🇺 624 101 24ms 2 May 2023 684th FCORMERAIS 624 101 17ms 6 Mar 2024 684th yhm138 624 101 13ms 16 Feb 2025 684th MinecraftFan69420 624 101 19ms 17 days ago 689th PogLop 🇨🇿 618 102 19ms 31 Oct 2022 689th AndersH3 🇸🇪 618 102 16ms 17 May 2023 689th JulieGermainUNT 618 102 19ms 2 Apr 2025 689th NicoBliss 618 102 24ms 46 hours ago 693rd enbyte 612 103 18ms 20 Dec 2022 693rd rajlath 612 103 19ms 7 Jan 2023 693rd mnurzia 612 103 14ms 12 Oct 2023 693rd sqrteipi 612 103 20ms 2 Apr 2024 693rd calum12345 612 103 18ms 26 Mar 2025 693rd SectorCorruptor 612 103 28ms 14 Aug 2025 699th winigo3 606 104 25ms 8 Aug 2022 699th zt14427 606 104 19ms 30 Apr 2023 699th IoLimmer 606 104 18ms 24 Jul 2024 702nd LordSir101 600 105 19ms 19 Jul 2022 702nd tmanternach 600 105 19ms 24 Nov 2022 702nd weber-hge 600 105 15ms 13 Jun 2023 702nd Eugen-str 600 105 17ms 24 Oct 2023 706th ms-tingliang 594 106 14ms 5 Aug 2022 706th achilleasr 594 106 23ms 7 Nov 2022 706th OleBrumm 594 106 19ms 8 Jan 2023 706th AbhilashaTandon 594 106 26ms 19 Sep 2023 706th sheeperino 🇮🇹 594 106 18ms 11 Oct 2024 711th phpboyscout 589 107 16ms 18 May 2023 711th DrPrettyman 589 107 16ms 5 Jul 2023 711th joseph-w0ng 589 107 14ms 5 Jul 2024 711th EnisEfe0 589 107 20ms 18 May 2025 715th landyrisbad 583 108 21ms 13 Nov 2022 715th cakular 583 108 27ms 17 May 2024 715th glassala 583 108 15ms 25 Oct 2024 715th StronkCheese2 583 108 21ms 5 days ago 719th tjefferson401 578 109 28ms 16 Sep 2022 719th ariesmarinus 578 109 17ms 21 Nov 2024 721st profJGermain 573 110 19ms 7 Feb 2024 721st JMMMMC 573 110 18ms 23 Oct 2024 721st jtb0362 573 110 21ms 10 May 2025 724th sagnik3 563 112 20ms 8 Aug 2022 724th craftablescience 563 112 16ms 19 Sep 2023 726th kelseychristensen 558 113 19ms 2 Nov 2022 726th ArmsTheLimited 558 113 15ms 1 Jun 2023 728th HunterC14 553 114 25ms 18 Oct 2024 729th jstechman 548 115 18ms 24 Feb 2024 729th dan422442 548 115 18ms 19 Oct 2024 731st keelanfh 543 116 14ms 20 Dec 2023 731st returnitynet 543 116 18ms 27 Jan 2025 731st EthanPatel01000101 543 116 16ms 20 Oct 2025 734th gioto64 538 117 17ms 8 Dec 2022 734th WilfredSalmon 538 117 16ms 21 Oct 2023 736th XianchengZ 534 118 18ms 18 Aug 2023 736th brindak2005 534 118 16ms 2 May 2025 738th jmmographer 516 122 20ms 21 Oct 2023 738th RucatJ 516 122 19ms 8 Aug 2025 740th xbxbxb007 512 123 19ms 10 Jan 2024 741st kevinnaviapaiva 488 129 17ms 20 Feb 2025 742nd AdrianN001 485 130 23ms 6 Aug 2023 743rd wyatt-the-hump 481 131 15ms 24 Dec 2022 743rd hotmanga 481 131 13ms 20 Oct 2023 743rd Jordynar02 481 131 17ms 3 May 2025 746th Zach10za 474 133 21ms 23 Jan 2024 747th vtilde 470 134 20ms 8 Jan 2024 748th fig-apple 467 135 11ms 24 Jun 2023 749th S-Ruban 460 137 13ms 25 Feb 2023 750th FLOKI0421 453 139 43ms 4 May 2025 First Prev 676–750 of 802 Next Last
