Card Number Validation in Python in bytes. 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 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 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 Calendar 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 Multitap Input 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 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 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 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 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 Calendar 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 Multitap Input 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 Bytes Time Submitted 74th fkantelberg 735 113 10ms 11 Jul 2025 77th HumanoidCPU 728 114 62ms 7 Mar 2025 77th blaztoma 🇱🇹 728 114 16ms 25 Sep 2025 79th jipsong 🇩🇪 722 115 17ms 12 May 2025 79th luuumine 🇫🇷 722 115 20ms 14 days ago 81st Bmrl7 716 116 10ms 3 Oct 2024 81st rowechenzhong 716 116 9ms 17 Oct 2024 83rd dtbao20 🇻🇳 709 117 16ms 1 Oct 2024 83rd Pyroan 709 117 16ms 22 Feb 2025 83rd vgamula 🇺🇦 709 117 19ms 5 Aug 2025 83rd FortuiteMan 🇫🇷 709 117 20ms 15 days ago 87th elgan65536 703 118 10ms 2 Oct 2024 87th logvp 703 118 15ms 6 Oct 2024 87th ahmetdemirag 🇨🇾 703 118 9ms 6 Feb 2025 87th plcc0 703 118 15ms 6 Apr 2025 87th KatieLG 🇬🇧 703 118 16ms 20 Apr 2025 87th dirckvdende 703 118 19ms 10 Jul 2025 87th yujqiao 703 118 17ms 14 hours ago 94th jtaxen 697 119 15ms 21 Oct 2024 94th psbpsbp 697 119 9ms 19 Dec 2024 94th klixel 🇨🇦 697 119 9ms 9 Apr 2025 94th vhoulbreque 🇫🇷 697 119 9ms 24 days ago 98th TaserTheFox 🇺🇸 692 120 16ms 8 Oct 2024 98th yokasuretsu 692 120 10ms 26 Jan 2025 98th Troon 692 120 10ms 17 Feb 2025 98th keelimeguy 🇺🇸 692 120 16ms 14 Jun 2025 102nd BREMAUCY 🇫🇷 686 121 16ms 18 Jul 2025 103rd chartung17 680 122 10ms 24 Mar 2025 104th msbranicky 675 123 17ms 3 Oct 2024 104th bobbysq 675 123 10ms 5 Oct 2024 104th wuzekai518 675 123 10ms 8 Oct 2024 107th NotEvenIndian 669 124 10ms 22 Oct 2024 107th ridingqwerty 🇺🇸 669 124 16ms 16 Jan 2025 107th CommandLeo 🇮🇹 669 124 9ms 5 Oct 2025 110th bnic24 664 125 16ms 3 Oct 2024 110th adoxography 664 125 11ms 22 Oct 2024 110th wh3n3v3r 🇨🇿 664 125 10ms 18 Nov 2024 110th lelbal 664 125 9ms 14 Oct 2025 114th CatsAreFluffy 654 127 15ms 30 Oct 2024 114th WillowWispy 654 127 10ms 25 May 2025 116th madex 🇩🇪 643 129 16ms 2 Oct 2024 116th RedzGoose 🇦🇺 643 129 13ms 15 Oct 2024 116th calebaitken 643 129 9ms 11 Apr 2025 116th rollershutter 643 129 17ms 26 days ago 116th JOrE20 🇺🇸 643 129 18ms 14 days ago 121st Europe2048 638 130 9ms 2 Oct 2024 121st nstearns96 🇬🇧 638 130 16ms 2 Oct 2024 121st Stockoh 🇫🇷 638 130 16ms 4 Jul 2025 124th inverseLorentz 🇦🇺 634 131 9ms 7 Oct 2024 124th dokutan 634 131 10ms 19 Oct 2024 124th sciencejiho 634 131 16ms 11 Feb 2025 124th Jaydosu 634 131 9ms 11 Apr 2025 124th Emutis 🇱🇹 634 131 9ms 11 Nov 2025 129th Mabeloid 🇳🇴 624 133 9ms 2 Oct 2024 130th RaBa21 🇭🇺 615 135 17ms 19 Jul 2025 131st sciencedjinn 610 136 9ms 8 Nov 2024 131st ihatethefrench 610 136 16ms 4 Jan 2025 131st Florian-Mt 610 136 19ms 10 days ago 134th kurkale6ka 606 137 21ms 16 Oct 2024 134th 4ndyJ 🇬🇧 606 137 10ms 14 Nov 2024 134th Mikey-Beep 🇬🇧 606 137 16ms 6 Aug 2025 134th wobblybits 606 137 15ms 17 Aug 2025 138th scpchicken 🇵🇼 597 139 16ms 6 Oct 2024 139th NanduBC 593 140 10ms 1 Oct 2024 139th jmerle 🇳🇱 593 140 10ms 10 Jan 2025 139th RobertHoeh 593 140 9ms 3 Mar 2025 139th smilesformiles3 593 140 15ms 12 Jun 2025 139th artem-aramma 593 140 18ms 18 Jun 2025 139th Andrey2001 593 140 10ms 18 days ago 145th FranklinJiaChen 589 141 13ms 2 Oct 2024 146th brimstonetrader 585 142 10ms 17 Oct 2024 146th codewrite 🇬🇧 585 142 11ms 5 May 2025 146th RobGLambert 585 142 16ms 8 Jun 2025 146th GodlyProgrammer1 585 142 16ms 23 days ago 150th GeneralFabian 580 143 10ms 9 Dec 2024 First Prev 76–150 of 209 Next Last