Card Number Validation in all languages in bytes. Ranked by golds, then diamonds, then silvers, then bronzes. 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 Topological Sort Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 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 All Bytes Chars Scoring All 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 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 Topological Sort Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 # Golfer 🦄 💎 🥇 🥈 🥉 1st JayXon 🇺🇸 0 18 24 1 0 2nd ovs-code 🇩🇪 0 6 6 4 1 3rd edsrzf 🇳🇿 0 4 5 1 4 4th sean-niemann 🇺🇸 0 1 4 5 1 5th GrayJoKing 🇦🇺 0 2 3 1 0 6th error256 0 1 3 1 1 7th saito-ta 🇯🇵 0 1 3 0 0 8th rucin93 🇵🇱 0 0 3 0 0 9th MeWhenI 🇻🇦 1 2 2 6 10 10th m-tkach 🇺🇦 0 2 2 3 0 11th canissimia 🇦🇶 1 2 2 1 0 12th primo-ppcg 🇹🇭 0 2 2 0 1 13th emplv 🇱🇻 0 1 2 1 0 14th nwellnhof 🇩🇪 0 0 2 3 2 15th AdrienHache 🇫🇷 0 1 1 0 0 15th IanUtley 0 1 1 0 0 15th khvdm 0 1 1 0 0 15th lifthrasiir 🇰🇷 0 1 1 0 0 15th MostParsingVex 0 1 1 0 0 15th UnderKoen 🇳🇱 0 1 1 0 0 15th xsot 🇸🇬 0 1 1 0 0 22nd DialFrost 🇸🇬 0 0 1 2 3 23rd pardouin 🇫🇷 0 0 1 2 0 24th duckyluuk 🇳🇱 0 0 1 1 0 24th inventshah 0 0 1 1 0 26th sisyphus-ppcg 🇦🇺 0 0 1 0 1 27th bitsandbeyond 🇳🇱 0 0 1 0 0 27th frankgraziano 0 0 1 0 0 27th radarek 🇵🇱 0 0 1 0 0 30th Shanethegamer 🇺🇸 0 0 0 4 5 31st AlephSquirrel 0 0 0 2 1 31st emgordon154 0 0 0 2 1 33rd bizy-coder 0 0 0 2 0 33rd CLOStrophobic 🇮🇹 0 0 0 2 0 35th stefangimmillaro 0 0 0 1 5 36th kg583 🇺🇸 0 0 0 1 1 36th SirBogman 🇺🇸 0 0 0 1 1 36th zacjl 0 0 0 1 1 39th 2bular 0 0 0 1 0 39th acotis 0 0 0 1 0 39th btnlq 0 0 0 1 0 39th chunes3 🇺🇸 0 0 0 1 0 39th FlyingPenguin223 0 0 0 1 0 39th jared-hughes 0 0 0 1 0 39th Kacarott 🇦🇺 0 0 0 1 0 39th KasperKivimaeki 🇫🇮 0 0 0 1 0 39th kops-cg 0 0 0 1 0 39th lynn 0 0 0 1 0 39th lyphyser 0 0 0 1 0 39th namelessiw 0 0 0 1 0 39th rhdqor213 0 0 0 1 0 39th Rubiksmath 0 0 0 1 0 39th Seek64 🇩🇪 0 0 0 1 0 39th xnor-gate 0 0 0 1 0 55th albanian-laundromat 0 0 0 0 1 55th annaproxy 0 0 0 0 1 55th CatsAreFluffy 0 0 0 0 1 55th ehulinsky 🇺🇸 0 0 0 0 1 55th GolfingSuccess 🇬🇷 0 0 0 0 1 55th JDiLenarda 🇫🇷 0 0 0 0 1 55th mousetail 🇳🇱 0 0 0 0 1 55th Natanaelel 🇸🇪 0 0 0 0 1 55th retrohun 0 0 0 0 1 55th stackofbears 0 0 0 0 1 55th Yax42 🇫🇷 0 0 0 0 1 1–65 of 65