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 672nd MrNiknoc 636 99 19ms 15 Jun 2025 677th OppositeShark 630 100 18ms 19 Jul 2022 677th NOS4A5I 630 100 18ms 10 Jan 2023 677th lomarbrick 630 100 18ms 16 May 2023 677th karlaacastro44 630 100 17ms 5 May 2025 681st markus-rekdal 624 101 24ms 10 May 2022 681st fraserli 🇦🇺 624 101 23ms 2 May 2023 681st FCORMERAIS 624 101 17ms 6 Mar 2024 681st yhm138 624 101 13ms 16 Feb 2025 681st MinecraftFan69420 624 101 20ms 15 days ago 686th PogLop 🇨🇿 618 102 21ms 31 Oct 2022 686th AndersH3 🇸🇪 618 102 14ms 17 May 2023 686th JulieGermainUNT 618 102 21ms 2 Apr 2025 689th enbyte 612 103 20ms 20 Dec 2022 689th rajlath 612 103 20ms 7 Jan 2023 689th mnurzia 612 103 15ms 12 Oct 2023 689th sqrteipi 612 103 19ms 2 Apr 2024 689th calum12345 612 103 18ms 26 Mar 2025 689th SectorCorruptor 612 103 24ms 14 Aug 2025 695th winigo3 606 104 23ms 8 Aug 2022 695th zt14427 606 104 18ms 30 Apr 2023 695th IoLimmer 606 104 17ms 24 Jul 2024 698th LordSir101 600 105 17ms 19 Jul 2022 698th tmanternach 600 105 18ms 24 Nov 2022 698th weber-hge 600 105 15ms 13 Jun 2023 698th Eugen-str 600 105 19ms 24 Oct 2023 702nd ms-tingliang 594 106 15ms 5 Aug 2022 702nd achilleasr 594 106 19ms 7 Nov 2022 702nd OleBrumm 594 106 19ms 8 Jan 2023 702nd AbhilashaTandon 594 106 19ms 19 Sep 2023 702nd sheeperino 🇮🇹 594 106 18ms 11 Oct 2024 707th phpboyscout 589 107 16ms 18 May 2023 707th DrPrettyman 589 107 18ms 5 Jul 2023 707th joseph-w0ng 589 107 14ms 5 Jul 2024 707th EnisEfe0 589 107 21ms 18 May 2025 711th landyrisbad 583 108 21ms 13 Nov 2022 711th cakular 583 108 25ms 17 May 2024 711th glassala 583 108 14ms 25 Oct 2024 711th StronkCheese2 583 108 18ms 3 days ago 715th tjefferson401 578 109 27ms 16 Sep 2022 715th ariesmarinus 578 109 15ms 21 Nov 2024 717th profJGermain 573 110 19ms 7 Feb 2024 717th JMMMMC 573 110 18ms 23 Oct 2024 717th jtb0362 573 110 18ms 10 May 2025 720th sagnik3 563 112 18ms 8 Aug 2022 720th craftablescience 563 112 17ms 19 Sep 2023 722nd kelseychristensen 558 113 20ms 2 Nov 2022 722nd ArmsTheLimited 558 113 15ms 1 Jun 2023 724th HunterC14 553 114 26ms 18 Oct 2024 725th jstechman 548 115 19ms 24 Feb 2024 725th dan422442 548 115 19ms 19 Oct 2024 727th keelanfh 543 116 15ms 20 Dec 2023 727th returnitynet 543 116 17ms 27 Jan 2025 727th EthanPatel01000101 543 116 17ms 26 days ago 730th gioto64 538 117 17ms 8 Dec 2022 730th WilfredSalmon 538 117 16ms 21 Oct 2023 732nd XianchengZ 534 118 18ms 18 Aug 2023 732nd brindak2005 534 118 17ms 2 May 2025 734th jmmographer 516 122 19ms 21 Oct 2023 734th RucatJ 516 122 18ms 8 Aug 2025 736th xbxbxb007 512 123 21ms 10 Jan 2024 737th kevinnaviapaiva 488 129 17ms 20 Feb 2025 738th AdrianN001 485 130 17ms 6 Aug 2023 739th wyatt-the-hump 481 131 17ms 24 Dec 2022 739th hotmanga 481 131 13ms 20 Oct 2023 739th Jordynar02 481 131 20ms 3 May 2025 742nd Zach10za 474 133 21ms 23 Jan 2024 743rd vtilde 470 134 19ms 8 Jan 2024 744th fig-apple 467 135 12ms 24 Jun 2023 745th S-Ruban 460 137 12ms 25 Feb 2023 746th FLOKI0421 453 139 17ms 4 May 2025 746th noahdorsch 453 139 18ms 5 May 2025 748th bartsowka2000 423 149 19ms 10 Jul 2023 749th KapelMeister 420 150 14ms 5 Sep 2025 750th sa1640 409 154 13ms 28 Apr 2025 First Prev 676–750 of 798 Next Last
