Collatz in Python in chars. 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 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers 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 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Chars Time 370th chriscianfarani 750 76 10 Aug 2022 370th eshilo-draper 750 76 13 Sep 2022 370th suwat513 750 76 22 Sep 2022 370th PogLop 🇨🇿 750 76 3 Nov 2022 370th Jaydosu 750 76 14 Nov 2022 370th tails618 750 76 2 Dec 2022 370th KevinLyvers 750 76 17 Dec 2022 370th nayakrujul 750 76 3 Jan 2023 370th CatsAreFluffy 750 76 18 Feb 2023 370th Schreipfelerer 750 76 9 Apr 2023 370th hm5822 750 76 22 Apr 2023 370th celiendonze 🇨🇭 750 76 5 Jul 2023 370th brochmann 🇸🇪 750 76 13 Aug 2023 370th Command-Master 750 76 2 Oct 2023 370th chartung17 750 76 17 Dec 2023 370th smokestacklightnin 🇺🇸 750 76 10 Jan 2024 370th NickTheEASDude 🇺🇸 750 76 26 Jan 2024 370th yuchuehw 750 76 2 Feb 2024 370th Azearia 750 76 26 Feb 2024 370th khavik 750 76 29 May 2024 370th Ythaenagor 750 76 5 Aug 2024 370th martion2007 750 76 9 Aug 2024 370th sjrct 750 76 10 Aug 2024 370th Mathrew2012 750 76 9 Nov 2024 370th kawrei 750 76 4 May 2025 401st cooljoseph1 740 77 6 May 2022 401st krcs 🇵🇱 740 77 11 May 2022 401st kenballus 740 77 13 Jul 2022 401st 104210 740 77 29 Jul 2022 401st andre-de-lorde 740 77 1 Sep 2022 401st zstephe 740 77 2 Dec 2022 401st badboj40 740 77 27 Dec 2022 401st henrytranter 740 77 11 Jan 2023 401st DragonaireM 740 77 6 Feb 2023 401st Ty-Cyr 740 77 14 Jul 2023 401st camieac 🇬🇧 740 77 14 Jul 2023 401st MisterrLuck 740 77 7 Sep 2023 401st alexjurkiewicz 🇦🇺 740 77 7 Nov 2023 401st askipio 740 77 22 Nov 2023 401st enbyte 740 77 9 Dec 2023 401st trinityy-7 740 77 17 Dec 2023 401st PyryL 🇫🇮 740 77 23 Aug 2024 401st CyberTapir 740 77 27 Aug 2024 401st junten1 740 77 20 Oct 2024 401st croc54 740 77 24 Dec 2024 401st za3k 740 77 3 Jun 2025 422nd AGoyet 731 78 29 Jul 2022 422nd RYNO8 731 78 16 Aug 2022 422nd TheCod-r 🇦🇶 731 78 28 Sep 2022 422nd Marthe-CC 731 78 9 Oct 2022 422nd Wildst 731 78 2 Nov 2022 422nd nmgetahun 731 78 4 Dec 2022 422nd Techdude01 731 78 13 Dec 2022 422nd tvcv901 731 78 22 Mar 2023 422nd oceko 731 78 24 Mar 2023 422nd yoyoyonono 731 78 15 May 2023 422nd Nic0M 731 78 13 Aug 2023 422nd ssbhatt4321 731 78 14 Oct 2023 422nd wyarde 731 78 7 Nov 2023 422nd EthanJ-Brady 731 78 24 Dec 2023 422nd adamreidsmith 731 78 16 Feb 2024 422nd DGipe 731 78 13 May 2024 422nd cyxv 731 78 2 Aug 2024 422nd Europe2048 731 78 24 Nov 2024 422nd GeneralFabian 731 78 14 Dec 2024 441st kevdah 722 79 27 May 2022 441st jacklynnepenick 722 79 22 Jun 2022 441st james-downey 722 79 9 Jul 2022 441st andre-lameirinhas 🇵🇹 722 79 26 Jul 2022 441st hamsterskywalker 722 79 7 Sep 2022 441st Pena86 722 79 14 Sep 2022 441st hymanimy 722 79 24 Nov 2022 441st Demonarchet 722 79 18 Apr 2023 441st dtaylor0 722 79 23 May 2023 441st neonchickens 722 79 6 Oct 2023 First Prev 376–450 of 785 Next Last