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 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 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 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 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 Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 523rd Phyisis 679 84 30 Apr 2024 523rd MaxCastella 🇫🇷 679 84 11 Oct 2024 523rd SURAJMITTAL 679 84 17 Dec 2024 523rd simplylu 679 84 5 Jan 2025 523rd WillowWispy 679 84 14 Mar 2025 523rd rustykitty 679 84 2 May 2025 523rd VedJosh 679 84 3 May 2025 523rd hetz2625 679 84 4 May 2025 534th aazuspan 671 85 15 Jun 2022 534th myleopard 671 85 20 Jul 2022 534th LukasFolwarczny 🇨🇿 671 85 16 Sep 2022 534th aaardwark 671 85 1 Jun 2025 534th kmathis22 671 85 14 days ago 539th MichaelMBradley 🇨🇦 663 86 5 Jun 2022 539th Lemonz-13223 663 86 21 Sep 2022 539th Bodo171 663 86 24 Nov 2022 539th shibacho 🇯🇵 663 86 25 Nov 2022 539th Vaekor 663 86 9 Jul 2023 539th LeoVanderSteege 663 86 18 Nov 2023 539th Pale-Vessel 663 86 18 Dec 2023 539th tik25 663 86 28 Mar 2024 539th willschremmer 663 86 27 Apr 2024 539th jamiloBBKing 663 86 27 Jan 2025 539th AsishKunta 663 86 1 Apr 2025 539th Hemanthred2005 663 86 1 Apr 2025 539th Voltrifrodec 🇸🇰 663 86 19 Apr 2025 539th lurey99 663 86 23 Apr 2025 539th Alban-Boissard 663 86 14 Jun 2025 539th Arkadios200 663 86 4 days ago 555th ToE42 655 87 19 Oct 2022 555th omri2001 655 87 19 Oct 2022 555th Skallos-s 655 87 5 Dec 2022 555th damoc1es 655 87 16 Apr 2023 555th michelebastione 🇮🇹 655 87 20 Dec 2023 555th clampcorder 655 87 24 Jan 2024 555th GitQuick 655 87 23 Feb 2024 555th EricSchraf 655 87 21 Mar 2024 555th PotatoSaladOverlord 655 87 21 May 2025 555th Ibozz91 655 87 8 Jun 2025 565th Andre3582 648 88 29 Oct 2022 565th Darknova2468 648 88 20 Nov 2022 565th Solsticely 648 88 20 Nov 2022 565th goGuru 648 88 21 Dec 2022 565th msbranicky 648 88 9 Aug 2023 565th gussy420 648 88 28 Oct 2023 565th Shynif 648 88 21 Feb 2024 565th somehybrid 648 88 24 Aug 2024 565th hippopotam00sehead 🇨🇦 648 88 11 Sep 2024 565th 08jne01 648 88 21 Nov 2024 565th davidludwik2370 648 88 10 days ago 576th lovernj 640 89 23 Aug 2022 576th Roj 640 89 20 Nov 2022 576th aeonsablaze 640 89 22 Nov 2022 576th buddyw 640 89 9 Mar 2023 576th VV1Git 640 89 28 Mar 2023 576th dranjohn 640 89 17 Sep 2023 576th ArenaGrenade 640 89 19 Feb 2024 576th NanduBC 640 89 6 Sep 2024 576th TheAtrossian 640 89 5 Jan 2025 576th KimJua41 640 89 4 May 2025 576th Upload-and-View 🇺🇦 640 89 20 Aug 2025 587th StoverGitHub 633 90 16 Jun 2022 587th jamespeilunli 633 90 4 Jul 2022 587th TrentGlimp 633 90 3 Sep 2022 587th Ugoran 633 90 19 Nov 2022 587th PATTRIM 633 90 5 Jan 2023 587th charliegaming 633 90 3 Oct 2023 587th lhulinsky 633 90 22 Oct 2024 587th bthalheim 633 90 6 Dec 2024 587th SinArieh 633 90 4 May 2025 587th islptng 633 90 7 Jul 2025 597th AbelPelser 626 91 3 Jul 2022 597th Seis 626 91 9 Dec 2022 597th r-i-c-e 626 91 9 Jul 2023 597th joshcors 626 91 30 Jun 2024 Prev 526–600 of 777 Next