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 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 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 522nd Vaekor 663 86 9 Jul 2023 522nd LeoVanderSteege 663 86 18 Nov 2023 522nd Pale-Vessel 663 86 18 Dec 2023 522nd tik25 663 86 28 Mar 2024 522nd willschremmer 663 86 27 Apr 2024 522nd jamiloBBKing 663 86 27 Jan 2025 522nd AsishKunta 663 86 1 Apr 2025 522nd Hemanthred2005 663 86 1 Apr 2025 522nd Voltrifrodec 🇸🇰 663 86 19 Apr 2025 522nd lurey99 663 86 23 Apr 2025 522nd Alban-Boissard 663 86 14 Jun 2025 537th ToE42 655 87 19 Oct 2022 537th omri2001 655 87 19 Oct 2022 537th Skallos-s 655 87 5 Dec 2022 537th damoc1es 655 87 16 Apr 2023 537th michelebastione 🇮🇹 655 87 20 Dec 2023 537th clampcorder 655 87 24 Jan 2024 537th GitQuick 655 87 23 Feb 2024 537th EricSchraf 655 87 21 Mar 2024 537th PotatoSaladOverlord 655 87 21 May 2025 537th Ibozz91 655 87 8 Jun 2025 547th Andre3582 648 88 29 Oct 2022 547th Darknova2468 648 88 20 Nov 2022 547th Solsticely 648 88 20 Nov 2022 547th goGuru 648 88 21 Dec 2022 547th msbranicky 648 88 9 Aug 2023 547th gussy420 648 88 28 Oct 2023 547th Shynif 648 88 21 Feb 2024 547th somehybrid 648 88 24 Aug 2024 547th hippopotam00sehead 🇨🇦 648 88 11 Sep 2024 547th 08jne01 648 88 21 Nov 2024 557th lovernj 640 89 23 Aug 2022 557th Roj 640 89 20 Nov 2022 557th aeonsablaze 640 89 22 Nov 2022 557th buddyw 640 89 9 Mar 2023 557th VV1Git 640 89 28 Mar 2023 557th dranjohn 640 89 17 Sep 2023 557th ArenaGrenade 640 89 19 Feb 2024 557th NanduBC 640 89 6 Sep 2024 557th TheAtrossian 640 89 5 Jan 2025 557th KimJua41 640 89 4 May 2025 567th StoverGitHub 633 90 16 Jun 2022 567th jamespeilunli 633 90 4 Jul 2022 567th TrentGlimp 633 90 3 Sep 2022 567th Ugoran 633 90 19 Nov 2022 567th PATTRIM 633 90 5 Jan 2023 567th charliegaming 633 90 3 Oct 2023 567th lhulinsky 633 90 22 Oct 2024 567th bthalheim 633 90 6 Dec 2024 567th SinArieh 633 90 4 May 2025 567th islptng 633 90 18 days ago 577th AbelPelser 626 91 3 Jul 2022 577th Seis 626 91 9 Dec 2022 577th r-i-c-e 626 91 9 Jul 2023 577th joshcors 626 91 30 Jun 2024 577th resoNathan 626 91 9 Jul 2024 577th jameswmccarty 626 91 24 Sep 2024 577th hamilton-bonds 626 91 12 Nov 2024 577th Wonamm 626 91 14 Feb 2025 585th TimLeffke 620 92 17 Aug 2022 585th Rythoka 620 92 17 Oct 2022 585th UriyaBA 620 92 19 Mar 2023 585th VladislavGitter 🇪🇸 620 92 14 Nov 2023 585th ridingqwerty 🇺🇸 620 92 22 Dec 2023 585th Thonoton 620 92 1 Feb 2024 585th OCNeve 620 92 17 Jun 2024 585th themoonisacheese 620 92 25 Feb 2025 585th BabySharkHi 620 92 22 Apr 2025 594th Bananapants22 613 93 4 Sep 2022 594th jaxmattfair 🇺🇸 613 93 10 Jan 2023 594th fenix-bear 613 93 18 Nov 2023 594th epic-programmer-guy 613 93 22 Dec 2023 594th brimstonetrader 613 93 18 Nov 2024 599th atazzam 🇺🇸 606 94 18 May 2022 599th rohangpta 606 94 8 Aug 2022 Prev 526–600 of 753 Next