Card Number Validation in Python in bytes. 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 Trinomial Triangle 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 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 Trinomial Triangle 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 Turtle Tutorial # Golfer Points Bytes Time Submitted 1st khvdm 1,000 83 19ms 7 Jun 2025 2nd bizy-coder 988 84 29ms 1 Oct 2024 2nd pardouin 🇫🇷 988 84 26ms 1 Oct 2024 2nd AlephSquirrel 988 84 23ms 1 Oct 2024 2nd btnlq 988 84 22ms 1 Oct 2024 2nd Seek64 🇩🇪 988 84 21ms 1 Oct 2024 2nd m-tkach 🇺🇦 988 84 27ms 1 Oct 2024 2nd Rubiksmath 988 84 28ms 7 Oct 2024 2nd JayXon 🇺🇸 988 84 21ms 13 Oct 2024 2nd kops-cg 988 84 20ms 22 Feb 2025 2nd xnor-gate 988 84 20ms 23 Feb 2025 12th inventshah 976 85 23ms 4 Oct 2024 13th hallvabo 🇳🇴 965 86 21ms 4 Jun 2025 14th nwellnhof 🇩🇪 922 90 93ms 1 Oct 2024 14th ovs-code 🇩🇪 922 90 22ms 3 Oct 2024 14th kg583 🇺🇸 922 90 17ms 9 Oct 2024 14th sean-niemann 🇺🇸 922 90 28ms 23 Dec 2024 14th ryyyn 🇺🇸 922 90 20ms 26 Jul 2025 19th 5cw 🇺🇸 912 91 15ms 1 Oct 2024 19th stefangimmillaro 912 91 22ms 13 Oct 2024 19th duckyluuk 🇳🇱 912 91 23ms 18 Oct 2024 19th GrayJoKing 🇦🇺 912 91 20ms 2 Jul 2025 23rd Shanethegamer 🇺🇸 902 92 18ms 3 Oct 2024 23rd error256 902 92 26ms 7 Oct 2024 23rd thatbirdguythatuknownot 902 92 17ms 14 Oct 2024 26th Bulmenisaurus 892 93 19ms 6 Oct 2024 26th lynn 892 93 17ms 8 Jan 2025 28th DialFrost 🇸🇬 883 94 21ms 1 Oct 2024 28th ndren 883 94 20ms 14 Feb 2025 30th moustave 874 95 19ms 4 Nov 2024 30th emgordon154 874 95 20ms 18 Nov 2024 32nd KasperKivimaeki 🇫🇮 865 96 43ms 1 Jul 2025 32nd MeWhenI 🇻🇦 865 96 18ms 30 Jul 2025 34th GolfingSuccess 🇬🇷 847 98 23ms 5 Oct 2024 34th firegene 🇮🇪 847 98 17ms 21 Oct 2024 36th SirBogman 🇺🇸 838 99 18ms 8 Oct 2024 37th anter69 🇭🇺 830 100 17ms 1 Oct 2024 37th bzijlema 🇳🇱 830 100 20ms 10 Oct 2024 37th bricknellj 830 100 17ms 4 Mar 2025 40th lifthrasiir 🇰🇷 822 101 20ms 21 Nov 2024 40th btjones0 822 101 18ms 2 Dec 2024 40th CornerMercury 🇬🇧 822 101 21ms 27 days ago 43rd annaproxy 814 102 19ms 1 Oct 2024 44th jatloe 798 104 10ms 1 Oct 2024 45th fourth-bit 790 105 17ms 1 Oct 2024 45th jared-hughes 790 105 17ms 3 Oct 2024 45th mattyhempstead 790 105 29ms 7 Oct 2024 48th davecame 783 106 17ms 1 Oct 2024 48th starfihs 783 106 10ms 2 Oct 2024 48th rschwa6308 🇺🇸 783 106 18ms 28 Oct 2024 48th snydej 783 106 18ms 21 Nov 2024 48th andrewjc2000 783 106 16ms 17 Jul 2025 48th qpwoeirut 783 106 11ms 19 Aug 2025 54th commandblockguy 🇺🇸 776 107 20ms 7 Oct 2024 54th zbreit 🇺🇸 776 107 20ms 29 Oct 2024 54th StardustGogeta 776 107 16ms 30 Oct 2024 54th ZakkkkAttackkkk 🇵🇭 776 107 18ms 8 Feb 2025 54th InigoK 🇺🇸 776 107 17ms 22 Sep 2025 59th neihousaigaai 769 108 17ms 4 Oct 2024 59th StefanHabel 🇨🇦 769 108 24ms 23 Jan 2025 59th CaedenHarper 🇨🇦 769 108 17ms 22 Jul 2025 59th BrunoVisnadi 🇧🇷 769 108 17ms 20 days ago 63rd cros107 🇦🇺 755 110 17ms 1 Jan 2025 63rd guilhem-roy 🇫🇷 755 110 18ms 29 May 2025 63rd albanian-laundromat 755 110 67ms 5 days ago 66th mousetail 🇳🇱 748 111 22ms 6 Oct 2024 67th OllieBoyne 🇬🇧 741 112 23ms 17 Oct 2024 67th WillConker 741 112 11ms 22 Oct 2024 67th maxgodfrey2004 🇨🇦 741 112 14ms 4 Jan 2025 70th SB-945 735 113 17ms 1 Oct 2024 70th Artemis21 🇬🇧 735 113 19ms 23 Jan 2025 70th fkantelberg 735 113 11ms 11 Jul 2025 73rd HumanoidCPU 728 114 61ms 7 Mar 2025 73rd blaztoma 🇱🇹 728 114 18ms 27 days ago 73rd solisolu 728 114 18ms 6 days ago 1–75 of 200 Next Last