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 150th CutSandstone 580 143 9ms 30 Jan 2025 150th kistlerf 🇨🇭 580 143 18ms 19 May 2025 153rd hiichbindermax 576 144 15ms 2 Oct 2024 153rd mathisfun271 576 144 9ms 14 Oct 2024 153rd bob-th 576 144 10ms 22 Oct 2024 156th JunkIce 572 145 10ms 3 Dec 2024 156th Flekay 🇩🇪 572 145 10ms 10 Jul 2025 158th croc54 568 146 12ms 15 Dec 2024 159th PyryL 🇫🇮 565 147 10ms 1 Mar 2025 160th mbittner20 561 148 11ms 13 Oct 2024 160th YAJUE114514 561 148 10ms 3 days ago 162nd psaban 557 149 16ms 31 Jul 2025 162nd TheZwierzLF 🇵🇱 557 149 11ms 21 days ago 164th FlorianCassayre 🇫🇷 553 150 16ms 1 Oct 2024 164th jameswmccarty 553 150 10ms 5 Oct 2024 164th yousefalizadeh 553 150 10ms 23 Oct 2024 164th feherd 553 150 10ms 31 Oct 2024 164th kadamkaustubh 553 150 9ms 8 Nov 2025 169th adamnielson42 🇺🇸 546 152 12ms 6 Oct 2024 169th voidgloom 546 152 10ms 22 Oct 2024 169th omero-san 546 152 9ms 22 Sep 2025 169th brochmann 🇸🇪 546 152 13ms 12 Oct 2025 173rd xyangst 542 153 9ms 1 Oct 2024 173rd denisfouchard 542 153 10ms 21 Aug 2025 175th osNiko 🇧🇷 539 154 11ms 21 Aug 2025 176th robin-scragg 535 155 13ms 21 Aug 2025 176th celiendonze 🇨🇭 535 155 11ms 17 Oct 2025 178th travisdoesmath 532 156 9ms 7 Sep 2025 178th Shotokhan 532 156 9ms 21 Sep 2025 180th lhulinsky 529 157 9ms 21 Oct 2024 181st ThatAlo 525 158 10ms 9 Dec 2024 182nd webmiche 522 159 10ms 3 Nov 2025 183rd CheeseCake628 🇳🇴 519 160 102ms 5 Nov 2024 184th pres-abhisheksinha 516 161 10ms 8 Oct 2024 185th ibixina 512 162 9ms 13 Oct 2024 185th TheAtrossian 512 162 10ms 5 Jan 2025 187th Vaekor 503 165 10ms 15 Dec 2024 188th JesseNoEyes 🇺🇸 491 169 10ms 1 Oct 2024 189th zyc-2024 🇨🇳 488 170 9ms 5 Oct 2024 190th ComputerKWasTaken 🇺🇸 485 171 10ms 14 Oct 2024 191st navier-1 480 173 11ms 22 Sep 2025 192nd clayboll99 472 176 10ms 10 Jul 2025 193rd Upload-and-View 🇺🇦 469 177 17ms 9 Aug 2025 194th OSYCh314 🇦🇺 466 178 10ms 2 Nov 2024 195th calum12345 461 180 10ms 26 Mar 2025 196th zt14427 456 182 10ms 27 Dec 2024 197th IoLimmer 454 183 9ms 10 Oct 2024 198th aksyristos 451 184 16ms 15 Nov 2024 199th estomagordo 🇳🇱 446 186 10ms 15 Jul 2025 200th gautambp 381 218 11ms 24 Jun 2025 201st Zhenyu-Bo 364 228 10ms 30 Jul 2025 202nd EthanJantz 361 230 10ms 5 Sep 2025 203rd RobertBurs 350 237 10ms 22 Sep 2025 204th TJK-S 344 241 10ms 25 Oct 2025 205th te-chnical 322 258 215ms 4 May 2025 206th NoneTheFewer 314 264 11ms 6 days ago 207th arebbsba 280 296 10ms 9 Jan 2025 208th AidanWalter 154 540 10ms 1 Jan 2025 209th bignamehyp 124 667 13ms 14 Nov 2024 First Prev 151–209 of 209