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 Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly 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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 Continued Fractions 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 359th hm5822 829 76 24ms 22 Apr 2023 359th celiendonze 🇨🇭 829 76 27ms 5 Jul 2023 359th brochmann 🇸🇪 829 76 19ms 13 Aug 2023 359th Command-Master 829 76 35ms 2 Oct 2023 359th chartung17 829 76 19ms 17 Dec 2023 359th smokestacklightnin 🇺🇸 829 76 30ms 10 Jan 2024 359th NickTheEASDude 🇺🇸 829 76 62ms 26 Jan 2024 359th yuchuehw 829 76 26ms 2 Feb 2024 359th Azearia 829 76 32ms 26 Feb 2024 359th tpasfieldERAU 829 76 21ms 18 May 2024 359th khavik 829 76 26ms 29 May 2024 359th Ythaenagor 829 76 22ms 5 Aug 2024 359th martion2007 829 76 50ms 9 Aug 2024 359th sjrct 829 76 25ms 10 Aug 2024 359th Mathrew2012 829 76 22ms 9 Nov 2024 359th kawrei 829 76 24ms 4 May 2025 359th RaBa21 🇭🇺 829 76 26ms 19 Jul 2025 359th mathieurodic 829 76 26ms 21 Oct 2025 359th DrakeSeteraO 829 76 53ms 26 days ago 395th cooljoseph1 818 77 23ms 6 May 2022 395th krcs 🇵🇱 818 77 20ms 11 May 2022 395th kenballus 818 77 24ms 13 Jul 2022 395th 104210 818 77 23ms 29 Jul 2022 395th andre-de-lorde 818 77 19ms 1 Sep 2022 395th zstephe 818 77 24ms 2 Dec 2022 395th badboj40 818 77 24ms 27 Dec 2022 395th henrytranter 818 77 24ms 11 Jan 2023 395th DragonaireM 818 77 24ms 6 Feb 2023 395th steffan-polygolf 818 77 26ms 19 Feb 2023 395th kellantech 818 77 18ms 21 May 2023 395th Ty-Cyr 818 77 18ms 14 Jul 2023 395th camieac 🇬🇧 818 77 23ms 14 Jul 2023 395th nathsou 🇫🇷 818 77 20ms 2 Sep 2023 395th MisterrLuck 818 77 22ms 7 Sep 2023 395th alexjurkiewicz 🇦🇺 818 77 20ms 7 Nov 2023 395th askipio 818 77 22ms 22 Nov 2023 395th trinityy-7 818 77 22ms 17 Dec 2023 395th zwxzwxzwx21 818 77 26ms 30 Jan 2024 395th PyryL 🇫🇮 818 77 19ms 23 Aug 2024 395th CyberTapir 818 77 22ms 27 Aug 2024 395th junten1 818 77 25ms 20 Oct 2024 395th croc54 818 77 22ms 24 Dec 2024 395th za3k 818 77 23ms 3 Jun 2025 395th mossiegoat 818 77 19ms 17 Aug 2025 395th j-zhang43 818 77 18ms 2 days ago 421st AGoyet 808 78 29ms 29 Jul 2022 421st RYNO8 808 78 21ms 16 Aug 2022 421st TheCod-r 🇦🇶 808 78 29ms 28 Sep 2022 421st Marthe-CC 808 78 22ms 9 Oct 2022 421st Wildst 808 78 18ms 2 Nov 2022 421st nmgetahun 808 78 22ms 4 Dec 2022 421st Techdude01 808 78 22ms 13 Dec 2022 421st tvcv901 808 78 19ms 22 Mar 2023 421st oceko 808 78 21ms 24 Mar 2023 421st yoyoyonono 808 78 25ms 15 May 2023 421st Nic0M 808 78 18ms 13 Aug 2023 421st ssbhatt4321 808 78 27ms 14 Oct 2023 421st wyarde 808 78 19ms 7 Nov 2023 421st ItsEthanXYZ 808 78 19ms 24 Dec 2023 421st adamreidsmith 808 78 39ms 16 Feb 2024 421st Jacob385 808 78 60ms 5 Mar 2024 421st DGipe 808 78 22ms 13 May 2024 421st cyxv 808 78 25ms 2 Aug 2024 421st gallium-gonzollium 808 78 26ms 26 Aug 2024 421st Europe2048 808 78 19ms 24 Nov 2024 421st GeneralFabian 808 78 24ms 14 Dec 2024 442nd kevdah 797 79 21ms 27 May 2022 442nd jacklynnepenick 797 79 18ms 22 Jun 2022 442nd james-downey 797 79 25ms 9 Jul 2022 442nd andre-lameirinhas 🇵🇹 797 79 22ms 26 Jul 2022 442nd hamsterskywalker 797 79 18ms 7 Sep 2022 442nd Pena86 797 79 25ms 14 Sep 2022 442nd hymanimy 797 79 24ms 24 Nov 2022 442nd Demonarchet 797 79 19ms 18 Apr 2023 442nd dtaylor0 797 79 20ms 23 May 2023 First Prev 376–450 of 803 Next Last