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 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 Chars Time 518th rustykitty 679 84 2 May 2025 518th VedJosh 679 84 3 May 2025 518th hetz2625 679 84 4 May 2025 529th aazuspan 671 85 15 Jun 2022 529th myleopard 671 85 20 Jul 2022 529th LukasFolwarczny 🇨🇿 671 85 16 Sep 2022 529th aaardwark 671 85 1 Jun 2025 529th blaztoma 🇱🇹 671 85 27 hours ago 534th MichaelMBradley 🇨🇦 663 86 5 Jun 2022 534th Lemonz-13223 663 86 21 Sep 2022 534th Bodo171 663 86 24 Nov 2022 534th shibacho 🇯🇵 663 86 25 Nov 2022 534th Vaekor 663 86 9 Jul 2023 534th LeoVanderSteege 663 86 18 Nov 2023 534th Pale-Vessel 663 86 18 Dec 2023 534th tik25 663 86 28 Mar 2024 534th willschremmer 663 86 27 Apr 2024 534th jamiloBBKing 663 86 27 Jan 2025 534th AsishKunta 663 86 1 Apr 2025 534th Hemanthred2005 663 86 1 Apr 2025 534th Voltrifrodec 🇸🇰 663 86 19 Apr 2025 534th lurey99 663 86 23 Apr 2025 534th Alban-Boissard 663 86 14 Jun 2025 549th ToE42 655 87 19 Oct 2022 549th omri2001 655 87 19 Oct 2022 549th Skallos-s 655 87 5 Dec 2022 549th damoc1es 655 87 16 Apr 2023 549th michelebastione 🇮🇹 655 87 20 Dec 2023 549th clampcorder 655 87 24 Jan 2024 549th GitQuick 655 87 23 Feb 2024 549th EricSchraf 655 87 21 Mar 2024 549th PotatoSaladOverlord 655 87 21 May 2025 549th Ibozz91 655 87 8 Jun 2025 559th Andre3582 648 88 29 Oct 2022 559th Darknova2468 648 88 20 Nov 2022 559th Solsticely 648 88 20 Nov 2022 559th goGuru 648 88 21 Dec 2022 559th msbranicky 648 88 9 Aug 2023 559th gussy420 648 88 28 Oct 2023 559th Shynif 648 88 21 Feb 2024 559th somehybrid 648 88 24 Aug 2024 559th hippopotam00sehead 🇨🇦 648 88 11 Sep 2024 559th 08jne01 648 88 21 Nov 2024 569th lovernj 640 89 23 Aug 2022 569th Roj 640 89 20 Nov 2022 569th aeonsablaze 640 89 22 Nov 2022 569th buddyw 640 89 9 Mar 2023 569th VV1Git 640 89 28 Mar 2023 569th dranjohn 640 89 17 Sep 2023 569th ArenaGrenade 640 89 19 Feb 2024 569th NanduBC 640 89 6 Sep 2024 569th TheAtrossian 640 89 5 Jan 2025 569th KimJua41 640 89 4 May 2025 569th Upload-and-View 🇺🇦 640 89 3 days ago 580th StoverGitHub 633 90 16 Jun 2022 580th jamespeilunli 633 90 4 Jul 2022 580th TrentGlimp 633 90 3 Sep 2022 580th Ugoran 633 90 19 Nov 2022 580th PATTRIM 633 90 5 Jan 2023 580th charliegaming 633 90 3 Oct 2023 580th lhulinsky 633 90 22 Oct 2024 580th bthalheim 633 90 6 Dec 2024 580th SinArieh 633 90 4 May 2025 580th islptng 633 90 7 Jul 2025 590th AbelPelser 626 91 3 Jul 2022 590th Seis 626 91 9 Dec 2022 590th r-i-c-e 626 91 9 Jul 2023 590th joshcors 626 91 30 Jun 2024 590th resoNathan 626 91 9 Jul 2024 590th jameswmccarty 626 91 24 Sep 2024 590th hamilton-bonds 626 91 12 Nov 2024 590th Wonamm 626 91 14 Feb 2025 598th TimLeffke 620 92 17 Aug 2022 598th Rythoka 620 92 17 Oct 2022 598th UriyaBA 620 92 19 Mar 2023 Prev 526–600 of 769 Next