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 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 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 Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters 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 Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Star Wars GPT 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 Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters 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 Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Star Wars GPT Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 71st zwxzwxzwx21 891 64 30 Jan 2024 71st steffan-polygolf 891 64 8 Mar 2024 71st Jacob385 891 64 4 Apr 2024 71st gallium-gonzollium 891 64 26 Aug 2024 71st albanian-laundromat 891 64 4 days ago 81st yzhs 🇩🇪 877 65 16 Jun 2022 81st rollershutter 877 65 9 Sep 2022 81st bac0id 877 65 26 Sep 2023 84th moustave 851 67 7 Nov 2024 85th Bubbler-4 838 68 15 Nov 2022 85th neel11235813 838 68 31 Dec 2022 85th Rubiksmath 838 68 14 Aug 2023 85th SB-945 838 68 7 Feb 2024 89th nwellnhof 🇩🇪 826 69 4 May 2022 89th GolfingSuccess 🇬🇷 826 69 5 May 2022 89th jared-hughes 826 69 5 May 2022 89th sisyphus-ppcg 🇦🇺 826 69 6 May 2022 89th lynn 826 69 22 Aug 2022 89th AlexanderFair 826 69 19 Jul 2023 89th AlephSquirrel 826 69 30 Dec 2023 89th davecame 826 69 20 Aug 2024 89th salvatore-abello 826 69 5 Sep 2024 89th zacjl 826 69 19 Sep 2024 89th kops-cg 826 69 9 Feb 2025 100th MichalMarsalek 🇨🇿 814 70 5 May 2022 100th primo-ppcg 🇹🇭 814 70 5 May 2022 100th prplz 🇦🇺 814 70 5 May 2022 100th rak1507 🇬🇧 814 70 7 May 2022 100th inventshah 814 70 9 May 2022 100th k3w1k0d3r 814 70 22 Jun 2022 100th Bonjour27891 🇻🇳 814 70 14 Jul 2022 100th OllieBoyne 🇬🇧 814 70 19 Jul 2022 100th bricknellj 814 70 25 Jul 2022 100th wen1now 814 70 8 Aug 2022 100th 051 🇸🇬 814 70 8 Aug 2022 100th Sp3000 🇦🇺 814 70 8 Aug 2022 100th betaveros 814 70 9 Aug 2022 100th shelerr 814 70 9 Sep 2022 100th stewSquared 🇺🇸 814 70 27 Sep 2022 100th myfatemi04 814 70 4 Nov 2022 100th kevinmchung 814 70 4 Nov 2022 100th fourth-bit 814 70 29 Nov 2022 100th aksyristos 814 70 25 Dec 2022 100th thizanne 814 70 27 Dec 2022 100th stefangimmillaro 814 70 6 Feb 2023 100th Seek64 🇩🇪 814 70 7 Feb 2023 100th FieryIceStickie 814 70 3 Apr 2023 100th MeWhenI 🇻🇦 814 70 30 Apr 2023 100th kellantech 814 70 15 May 2023 100th InigoK 🇺🇸 814 70 14 Jun 2023 100th quimey 814 70 15 Jun 2023 100th bizy-coder 814 70 14 Aug 2023 100th janbehrens 🇩🇪 814 70 24 Nov 2023 100th namelessiw 814 70 9 Jan 2024 100th mathisfun271 814 70 13 Feb 2024 100th ThijsLuttikhuis 814 70 3 Mar 2024 100th jtaxen 814 70 1 Apr 2024 100th abc7-12 814 70 6 May 2024 100th ahmetdemirag 🇨🇾 814 70 9 Jun 2024 100th FranklinJiaChen 814 70 4 Jul 2024 100th 5cw 🇺🇸 814 70 13 Jul 2024 100th lgrandco 814 70 9 Oct 2024 100th snydej 814 70 21 Nov 2024 100th erikji 814 70 4 Feb 2025 100th CutSandstone 814 70 4 Feb 2025 141st StefanHabel 🇨🇦 803 71 29 Nov 2022 141st nstearns96 🇬🇧 803 71 11 Jan 2023 141st rucin93 🇵🇱 803 71 10 Jul 2024 144th scpchicken 🇵🇼 792 72 4 May 2022 144th sultan 792 72 6 Jun 2022 144th BlankSpruce 792 72 9 Sep 2022 144th ValentinCassayre 792 72 8 Oct 2022 144th mathb0y512 792 72 1 Dec 2022 144th NoahBolohan 🇨🇦 792 72 28 Feb 2023 144th Kacarott 🇦🇺 792 72 24 Mar 2023 Prev 76–150 of 669 Next