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 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 NFA Simulator Odd Polyomino Tiling 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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 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 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 596th charliegaming 756 90 19ms 3 Oct 2023 596th lhulinsky 756 90 24ms 22 Oct 2024 596th bthalheim 756 90 22ms 6 Dec 2024 596th nooby31415 756 90 19ms 18 Apr 2025 596th SinArieh 756 90 24ms 4 May 2025 596th islptng 756 90 30ms 7 Jul 2025 596th Mr-McChicken 756 90 17ms 4 Oct 2025 608th AbelPelser 747 91 24ms 3 Jul 2022 608th Seis 747 91 20ms 9 Dec 2022 608th r-i-c-e 747 91 19ms 9 Jul 2023 608th joshcors 747 91 17ms 30 Jun 2024 608th resoNathan 747 91 17ms 9 Jul 2024 608th jameswmccarty 747 91 22ms 24 Sep 2024 608th hamilton-bonds 747 91 18ms 12 Nov 2024 608th Wonamm 747 91 30ms 14 Feb 2025 616th TimLeffke 739 92 25ms 17 Aug 2022 616th Rythoka 739 92 16ms 17 Oct 2022 616th UriyaBA 739 92 18ms 19 Mar 2023 616th VladislavGitter 🇪🇸 739 92 19ms 14 Nov 2023 616th ridingqwerty 🇺🇸 739 92 20ms 22 Dec 2023 616th Thonoton 739 92 20ms 1 Feb 2024 616th OCNeve 739 92 24ms 17 Jun 2024 616th themoonisacheese 739 92 28ms 25 Feb 2025 616th BabySharkHi 739 92 27ms 22 Apr 2025 616th arjunarya1 739 92 17ms 28 Aug 2025 616th TJK-S 739 92 20ms 21 days ago 627th Bananapants22 731 93 27ms 4 Sep 2022 627th jaxmattfair 🇺🇸 731 93 20ms 10 Jan 2023 627th cingulataluke 731 93 18ms 27 Aug 2023 627th fenix-bear 731 93 20ms 18 Nov 2023 627th epic-programmer-guy 731 93 26ms 22 Dec 2023 627th brimstonetrader 731 93 24ms 18 Nov 2024 627th Aquateraneal 731 93 18ms 11 Aug 2025 634th atazzam 🇺🇸 723 94 20ms 18 May 2022 634th rohangpta 723 94 19ms 8 Aug 2022 634th shinylego 723 94 25ms 14 Sep 2022 634th sgaltair 723 94 20ms 4 Nov 2022 634th TotoAJ 723 94 19ms 15 Dec 2023 634th Gusic06 723 94 23ms 6 May 2024 634th kyleyarwood 723 94 28ms 6 Oct 2024 634th jj0786-cell 723 94 19ms 1 Apr 2025 634th griffinschreiber 723 94 20ms 1 Apr 2025 643rd felixcroc 716 95 22ms 30 Mar 2023 643rd Pyro569 716 95 23ms 4 Jul 2023 643rd rm-rf-innocence 716 95 20ms 19 Dec 2023 643rd Bit125 716 95 19ms 30 Jan 2024 643rd aalec 716 95 22ms 25 Apr 2024 643rd strogor 716 95 27ms 13 Jun 2025 643rd cthierfelder 🇲🇨 716 95 19ms 17 Jul 2025 643rd ThomasDelepine 716 95 21ms 3 days ago 651st karhuthebear 708 96 27ms 9 May 2022 651st qwjhvbxi 708 96 24ms 6 Feb 2024 651st alfonsoalves 708 96 19ms 21 Jul 2024 651st jeff-re 708 96 15ms 1 Apr 2025 655th a-penton 701 97 17ms 22 Sep 2022 655th jrbud 701 97 22ms 6 Jan 2024 655th befoster 701 97 23ms 22 Feb 2024 655th joshua-el-samalouti 🇩🇪 701 97 21ms 26 May 2024 655th luca1339 701 97 24ms 10 Jun 2024 660th lukemalek 694 98 15ms 10 Oct 2022 660th UltimateGuy0987 694 98 22ms 14 Oct 2022 660th TheLazySquid 694 98 20ms 20 Dec 2022 660th StronkCheese 🇺🇸 694 98 20ms 13 Mar 2023 660th Anthony-Williams-06 694 98 28ms 17 Oct 2023 660th NoneTheFewer 694 98 22ms 17 May 2024 660th abcdhhhh 694 98 15ms 27 Aug 2024 660th OSYCh314 🇦🇺 694 98 25ms 16 Nov 2024 660th cole-wilson 694 98 19ms 9 Dec 2024 660th Akilles1 694 98 21ms 15 May 2025 670th LukeRichardson-dev 687 99 17ms 12 May 2022 670th Tagfox 687 99 19ms 18 Jul 2022 670th gabrielsqw 687 99 25ms 24 Oct 2023 670th sciencedjinn 687 99 18ms 8 Nov 2024 670th MrNiknoc 687 99 20ms 15 Jun 2025 675th OppositeShark 680 100 18ms 19 Jul 2022 First Prev 601–675 of 794 Next Last