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 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 Topological Sort 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 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 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 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 Topological Sort Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 523rd shibacho 🇯🇵 663 86 25 Nov 2022 523rd Vaekor 663 86 9 Jul 2023 523rd LeoVanderSteege 663 86 18 Nov 2023 523rd Pale-Vessel 663 86 18 Dec 2023 523rd tik25 663 86 28 Mar 2024 523rd willschremmer 663 86 27 Apr 2024 523rd jamiloBBKing 663 86 27 Jan 2025 523rd AsishKunta 663 86 1 Apr 2025 523rd Hemanthred2005 663 86 1 Apr 2025 523rd Voltrifrodec 🇸🇰 663 86 19 Apr 2025 523rd lurey99 663 86 23 Apr 2025 523rd Alban-Boissard 663 86 14 Jun 2025 538th ToE42 655 87 19 Oct 2022 538th omri2001 655 87 19 Oct 2022 538th Skallos-s 655 87 5 Dec 2022 538th damoc1es 655 87 16 Apr 2023 538th michelebastione 🇮🇹 655 87 20 Dec 2023 538th clampcorder 655 87 24 Jan 2024 538th GitQuick 655 87 23 Feb 2024 538th EricSchraf 655 87 21 Mar 2024 538th PotatoSaladOverlord 655 87 21 May 2025 538th Ibozz91 655 87 8 Jun 2025 548th Andre3582 648 88 29 Oct 2022 548th Darknova2468 648 88 20 Nov 2022 548th Solsticely 648 88 20 Nov 2022 548th goGuru 648 88 21 Dec 2022 548th msbranicky 648 88 9 Aug 2023 548th gussy420 648 88 28 Oct 2023 548th Shynif 648 88 21 Feb 2024 548th somehybrid 648 88 24 Aug 2024 548th hippopotam00sehead 🇨🇦 648 88 11 Sep 2024 548th 08jne01 648 88 21 Nov 2024 558th lovernj 640 89 23 Aug 2022 558th Roj 640 89 20 Nov 2022 558th aeonsablaze 640 89 22 Nov 2022 558th buddyw 640 89 9 Mar 2023 558th VV1Git 640 89 28 Mar 2023 558th dranjohn 640 89 17 Sep 2023 558th ArenaGrenade 640 89 19 Feb 2024 558th NanduBC 640 89 6 Sep 2024 558th TheAtrossian 640 89 5 Jan 2025 558th KimJua41 640 89 4 May 2025 568th StoverGitHub 633 90 16 Jun 2022 568th jamespeilunli 633 90 4 Jul 2022 568th TrentGlimp 633 90 3 Sep 2022 568th Ugoran 633 90 19 Nov 2022 568th PATTRIM 633 90 5 Jan 2023 568th charliegaming 633 90 3 Oct 2023 568th lhulinsky 633 90 22 Oct 2024 568th bthalheim 633 90 6 Dec 2024 568th SinArieh 633 90 4 May 2025 568th islptng 633 90 21 days ago 578th AbelPelser 626 91 3 Jul 2022 578th Seis 626 91 9 Dec 2022 578th r-i-c-e 626 91 9 Jul 2023 578th joshcors 626 91 30 Jun 2024 578th resoNathan 626 91 9 Jul 2024 578th jameswmccarty 626 91 24 Sep 2024 578th hamilton-bonds 626 91 12 Nov 2024 578th Wonamm 626 91 14 Feb 2025 586th TimLeffke 620 92 17 Aug 2022 586th Rythoka 620 92 17 Oct 2022 586th UriyaBA 620 92 19 Mar 2023 586th VladislavGitter 🇪🇸 620 92 14 Nov 2023 586th ridingqwerty 🇺🇸 620 92 22 Dec 2023 586th Thonoton 620 92 1 Feb 2024 586th OCNeve 620 92 17 Jun 2024 586th themoonisacheese 620 92 25 Feb 2025 586th BabySharkHi 620 92 22 Apr 2025 595th Bananapants22 613 93 4 Sep 2022 595th jaxmattfair 🇺🇸 613 93 10 Jan 2023 595th fenix-bear 613 93 18 Nov 2023 595th epic-programmer-guy 613 93 22 Dec 2023 595th brimstonetrader 613 93 18 Nov 2024 600th atazzam 🇺🇸 606 94 18 May 2022 Prev 526–600 of 754 Next