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 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 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 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 Knight 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 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 Knight 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 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 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 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 673rd EnisEfe0 636 107 18 May 2025 677th landyrisbad 630 108 13 Nov 2022 677th cakular 630 108 17 May 2024 677th glassala 630 108 25 Oct 2024 680th tjefferson401 624 109 16 Sep 2022 680th ariesmarinus 624 109 21 Nov 2024 682nd profJGermain 618 110 7 Feb 2024 682nd JMMMMC 618 110 23 Oct 2024 682nd jtb0362 618 110 10 May 2025 682nd davidludwik2370 618 110 15 days ago 686th sagnik3 607 112 8 Aug 2022 686th craftablescience 607 112 19 Sep 2023 688th kelseychristensen 602 113 2 Nov 2022 688th ArmsTheLimited 602 113 1 Jun 2023 690th HunterC14 596 114 18 Oct 2024 691st jstechman 591 115 24 Feb 2024 691st dan422442 591 115 19 Oct 2024 693rd keelanfh 586 116 20 Dec 2023 693rd returnitynet 586 116 27 Jan 2025 695th gioto64 581 117 8 Dec 2022 695th WilfredSalmon 581 117 21 Oct 2023 697th XianchengZ 576 118 18 Aug 2023 697th brindak2005 576 118 2 May 2025 699th jmmographer 557 122 21 Oct 2023 699th RucatJ 557 122 5 days ago 701st xbxbxb007 553 123 10 Jan 2024 702nd kevinnaviapaiva 527 129 20 Feb 2025 703rd AdrianN001 523 130 6 Aug 2023 704th wyatt-the-hump 519 131 24 Dec 2022 704th hotmanga 519 131 20 Oct 2023 704th Jordynar02 519 131 3 May 2025 707th Zach10za 511 133 23 Jan 2024 708th vtilde 507 134 8 Jan 2024 709th fig-apple 504 135 24 Jun 2023 710th S-Ruban 496 137 25 Feb 2023 711th FLOKI0421 489 139 4 May 2025 711th noahdorsch 489 139 5 May 2025 713th bartsowka2000 456 149 10 Jul 2023 714th sa1640 442 154 28 Apr 2025 715th arinhyther 439 155 24 Dec 2022 716th SebbeCaliban 433 157 11 Apr 2023 717th codefeld 393 173 5 Mar 2023 718th fl3ur1nestimable 382 178 24 Oct 2022 719th Siyasia 360 189 22 Apr 2025 720th kalehika1234 352 193 24 Apr 2025 721st hannahherbig 351 194 30 Mar 2023 722nd Upload-and-View 🇺🇦 337 202 18 days ago 723rd dahappy1989 332 205 5 Nov 2023 724th sahilshresthaa 330 206 4 May 2025 725th jalbertgordon 329 207 24 Oct 2023 726th AidanWalter 325 209 3 Jan 2025 727th sayloren 313 217 5 Mar 2023 727th AshayP123 313 217 1 May 2025 729th rubenguajardount 302 225 4 May 2025 730th amritm55 298 228 1 Apr 2025 731st clarkatunt19 297 229 3 May 2025 732nd jac1107 296 230 4 May 2025 732nd rcs0252 296 230 4 May 2025 734th apurbapokharel 291 234 3 Apr 2025 735th wlopez44 281 242 29 Apr 2025 735th sakshiPatel2602 281 242 3 May 2025 737th Zok030 280 243 1 Apr 2025 737th Josemnz 280 243 28 Apr 2025 739th tophy6 276 246 1 Apr 2025 739th LyndaS317 276 246 14 Apr 2025 741st letdank 275 247 1 Apr 2025 741st AdamGonzo1254 275 247 3 May 2025 743rd shawncrabtree 270 252 5 Jul 2025 744th punkroczombie 268 254 4 May 2025 745th Abulsamad 239 285 5 May 2025 746th aidnrox 224 303 2 May 2025 747th OffSecVik 224 304 25 Feb 2023 748th Hailee100 217 314 1 Apr 2025 749th lightediand 🇬🇧 213 319 14 Dec 2022 750th chaamsak 211 322 1 May 2025 Prev 676–750 of 763 Next