Card Number Validation in Python in chars. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Calendar 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 Minesweeper Morse Decoder Morse Encoder Multitap Input 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 Tower of Hanoi 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 Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel 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 Erlang 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 ArkScript Arturo Befunge BQN CJam CoffeeScript Egel 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 Calendar 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 Minesweeper Morse Decoder Morse Encoder Multitap Input 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 Tower of Hanoi 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 Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 1st bizy-coder 1,000 67 22ms 1 Oct 2024 1st pardouin 🇫🇷 1,000 67 21ms 1 Oct 2024 1st btnlq 1,000 67 21ms 1 Oct 2024 1st Seek64 🇩🇪 1,000 67 23ms 1 Oct 2024 1st m-tkach 🇺🇦 1,000 67 22ms 1 Oct 2024 1st Rubiksmath 1,000 67 22ms 7 Oct 2024 1st JayXon 🇺🇸 1,000 67 22ms 13 Oct 2024 1st khvdm 1,000 67 25ms 28 Feb 2025 1st ryyyn 🇺🇸 1,000 67 22ms 28 mins ago 10th hallvabo 🇳🇴 985 68 20ms 4 Jun 2025 11th kg583 🇺🇸 957 70 17ms 10 Oct 2024 11th sean-niemann 🇺🇸 957 70 20ms 8 Jan 2025 13th duckyluuk 🇳🇱 931 72 16ms 4 Oct 2024 13th ndren 931 72 17ms 14 Feb 2025 13th CornerMercury 🇬🇧 931 72 19ms 23 Nov 2025 16th moustave 918 73 22ms 5 Nov 2024 16th emgordon154 918 73 18ms 18 Nov 2024 18th albanian-laundromat 905 74 18ms 3 Nov 2025 18th plcc0 905 74 19ms 22 days ago 20th anter69 🇭🇺 893 75 18ms 11 Oct 2024 21st lifthrasiir 🇰🇷 882 76 10ms 16 Nov 2024 21st snoozingnewt 🇨🇦 882 76 11ms 6 Dec 2025 23rd jatloe 870 77 11ms 1 Oct 2024 24th qpwoeirut 859 78 10ms 1 Oct 2025 25th Babafaba 827 81 17ms 11 Nov 2025 26th SB-945 817 82 17ms 1 Oct 2024 26th HumanoidCPU 817 82 65ms 7 Mar 2025 26th fkantelberg 817 82 11ms 11 Jul 2025 26th BrunoVisnadi 🇧🇷 817 82 10ms 21 Sep 2025 30th Bmrl7 807 83 10ms 3 Oct 2024 30th KatieLG 🇬🇧 807 83 17ms 17 days ago 32nd AlephSquirrel 798 84 20ms 1 Oct 2024 32nd kops-cg 798 84 20ms 22 Feb 2025 32nd xnor-gate 798 84 21ms 23 Feb 2025 35th inventshah 788 85 22ms 4 Oct 2024 35th Artemis21 🇬🇧 788 85 11ms 10 Jan 2025 35th keelimeguy 🇺🇸 788 85 19ms 14 Jun 2025 38th wh3n3v3r 🇨🇿 761 88 14ms 18 Nov 2024 39th nwellnhof 🇩🇪 744 90 20ms 1 Oct 2024 39th ovs-code 🇩🇪 744 90 17ms 3 Oct 2024 39th luuumine 🇫🇷 744 90 17ms 8 Oct 2025 39th JOrE20 744 90 17ms 1 Dec 2025 43rd 5cw 🇺🇸 736 91 17ms 1 Oct 2024 43rd stefangimmillaro 736 91 16ms 13 Oct 2024 43rd dokutan 736 91 10ms 19 Oct 2024 43rd GrayJoKing 🇦🇺 736 91 19ms 2 Jul 2025 47th Shanethegamer 🇺🇸 728 92 16ms 3 Oct 2024 47th error256 728 92 21ms 7 Oct 2024 47th thatbirdguythatuknownot 728 92 18ms 14 Oct 2024 50th Bulmenisaurus 720 93 17ms 6 Oct 2024 50th lynn 720 93 16ms 8 Jan 2025 50th RaBa21 🇭🇺 720 93 17ms 19 Jul 2025 50th KasperKivimaeki 🇫🇮 720 93 19ms 30 Nov 2025 50th blaztoma 🇱🇹 720 93 18ms 18 Dec 2025 55th DialFrost 🇸🇬 713 94 20ms 1 Oct 2024 56th MeWhenI 🇻🇦 698 96 18ms 30 Jul 2025 57th GolfingSuccess 🇬🇷 684 98 19ms 5 Oct 2024 57th firegene 🇮🇪 684 98 19ms 21 Oct 2024 57th JunkIce 684 98 11ms 3 Dec 2024 60th SirBogman 🇺🇸 677 99 16ms 8 Oct 2024 61st FlorianCassayre 🇫🇷 670 100 17ms 1 Oct 2024 61st bzijlema 🇳🇱 670 100 18ms 10 Oct 2024 61st bricknellj 670 100 17ms 4 Mar 2025 64th btjones0 663 101 18ms 2 Dec 2024 65th annaproxy 657 102 17ms 1 Oct 2024 65th xyangst 657 102 11ms 1 Oct 2024 65th solisolu 657 102 10ms 31 Dec 2025 68th robin-scragg 650 103 11ms 21 Aug 2025 69th fourth-bit 638 105 17ms 1 Oct 2024 69th jared-hughes 638 105 18ms 3 Oct 2024 69th mattyhempstead 638 105 29ms 7 Oct 2024 72nd davecame 632 106 18ms 1 Oct 2024 72nd starfihs 632 106 10ms 2 Oct 2024 72nd rschwa6308 🇺🇸 632 106 16ms 28 Oct 2024 72nd snydej 632 106 17ms 21 Nov 2024 72nd andrewjc2000 632 106 17ms 17 Jul 2025 72nd travisdoesmath 632 106 17ms 7 Sep 2025 78th commandz0 🇺🇸 626 107 17ms 7 Oct 2024 78th zbreit 🇺🇸 626 107 17ms 29 Oct 2024 78th StardustGogeta 626 107 19ms 30 Oct 2024 1–80 of 212 Next Last