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Card Number Validation in all languages 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 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 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 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 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 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 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 161st m-tkach 🇺🇦 855 87 7ms 6 Oct 2024 162nd sean-niemann 🇺🇸 853 56 36ms 8 Aug 2025 163rd JayXon 🇺🇸 853 95 424ms 4 Oct 2024 164th sean-niemann 🇺🇸 852 51 2ms 2 Oct 2024 165th MostParsingVex 850 100 1,024ms 1 Oct 2024 166th error256 849 106 85ms 8 Oct 2024 167th emgordon154 848 67 1,283ms 18 Nov 2024 168th DialFrost 🇸🇬 848 94 15ms 1 Oct 2024 168th ndren 848 94 16ms 14 Feb 2025 170th edsrzf 🇳🇿 847 150 45ms 27 Feb 2025 171st primo-ppcg 🇹🇭 846 128 41ms 27 Apr 2025 172nd lynn 846 131 138ms 8 Jan 2025 173rd KasperKivimaeki 🇫🇮 845 141 246ms 9 Oct 2025 174th IanUtley 844 113 18ms 2 Oct 2024 175th error256 842 94 2ms 7 Oct 2024 176th m-tkach 🇺🇦 842 144 79ms 8 Oct 2024 177th edsrzf 🇳🇿 841 111 439ms 19 Dec 2025 178th KasperKivimaeki 🇫🇮 840 103 396ms 8 Dec 2025 179th sean-niemann 🇺🇸 840 121 3ms 30 Nov 2024 180th nwellnhof 🇩🇪 839 84 2ms 2 Oct 2024 180th ovs-code 🇩🇪 839 84 1ms 2 Nov 2024 180th inventshah 839 84 2ms 31 Mar 2025 183rd moustave 839 95 19ms 4 Nov 2024 183rd emgordon154 839 95 16ms 18 Nov 2024 185th emplv 🇱🇻 839 142 253ms 2 Oct 2024 185th sean-niemann 🇺🇸 839 142 249ms 2 Oct 2024 187th xsot 🇸🇬 838 57 38ms 6 May 2025 188th snoozingnewt 🇨🇦 837 92 113ms 18 Dec 2025 189th JayXon 🇺🇸 837 109 1,485ms 5 Oct 2024 190th GrayJoKing 🇦🇺 836 47 4ms 1 Oct 2024 191st stefangimmillaro 836 68 1,290ms 2 Oct 2024 192nd Shanethegamer 🇺🇸 836 77 11ms 1 Oct 2024 192nd edsrzf 🇳🇿 836 77 10ms 10 May 2025 192nd biocommando 🇫🇮 836 77 10ms 13 Jun 2025 195th m-tkach 🇺🇦 836 138 27ms 3 Oct 2024 196th emplv 🇱🇻 836 145 25ms 24 Oct 2024 197th sean-niemann 🇺🇸 835 114 42ms 2 Oct 2024 198th edsrzf 🇳🇿 835 115 3ms 19 Dec 2025 199th stefangimmillaro 834 80 3,138ms 12 Nov 2024 200th sean-niemann 🇺🇸 834 81 10ms 20 Dec 2024 201st edsrzf 🇳🇿 833 108 82ms 26 Jul 2025 202nd stefangimmillaro 833 112 140ms 4 Oct 2024 203rd MeWhenI 🇻🇦 833 130 40ms 3 Oct 2024 204th edsrzf 🇳🇿 833 133 154ms 19 Dec 2025 205th MeWhenI 🇻🇦 833 143 251ms 2 Oct 2024 206th ovs-code 🇩🇪 833 200 1,436ms 19 Apr 2025 207th JayXon 🇺🇸 832 155 2,650ms 3 Oct 2024 208th emplv 🇱🇻 830 77 137ms 28 Mar 2025 209th MeWhenI 🇻🇦 830 96 16ms 30 Jul 2025 210th CLOStrophobic 🇮🇹 830 119 6ms 24 Feb 2025 211th edsrzf 🇳🇿 830 139 27ms 19 Dec 2025 212th saito-ta 🇯🇵 829 85 1ms 1 Oct 2024 213th dcgjb 825 78 10ms 6 May 2025 214th stefangimmillaro 825 99 109ms 3 Oct 2024 215th m-tkach 🇺🇦 824 58 42ms 8 Oct 2024 216th retrohun 824 71 9ms 10 Jan 2025 217th nwellnhof 🇩🇪 824 105 390ms 8 days ago 218th kg583 🇺🇸 823 115 7ms 17 Oct 2025 219th DialFrost 🇸🇬 822 82 103ms 23 Jun 2025 220th plcc0 822 97 17ms 18 days ago 221st primo-ppcg 🇹🇭 822 232 525ms 13 Aug 2025 222nd ovs-code 🇩🇪 820 65 5ms 30 Oct 2024 223rd sean-niemann 🇺🇸 819 48 4ms 9 Aug 2025 224th MeWhenI 🇻🇦 819 114 470ms 7 Nov 2025 225th MeWhenI 🇻🇦 817 92 10ms 24 Dec 2024 226th MeWhenI 🇻🇦 817 104 1,024ms 2 Oct 2024 227th canissimia 🇦🇶 817 130 3ms 4 Oct 2024 228th MeWhenI 🇻🇦 817 186 14ms 2 Oct 2024 229th ovs-code 🇩🇪 816 106 394ms 1 Oct 2024 229th inventshah 816 106 391ms 1 Oct 2024 231st lifthrasiir 🇰🇷 815 197 10ms 19 Dec 2024 232nd Shanethegamer 🇺🇸 814 69 338ms 2 Oct 2024 233rd sisyphus-ppcg 🇦🇺 814 83 9ms 2 Oct 2024 234th MeWhenI 🇻🇦 814 85 2ms 5 Oct 2024 235th MeWhenI 🇻🇦 813 85 110ms 4 Oct 2024 236th GolfingSuccess 🇬🇷 813 98 16ms 5 Oct 2024 236th firegene 🇮🇪 813 98 17ms 21 Oct 2024 236th albanian-laundromat 813 98 16ms 3 Nov 2025 239th albanian-laundromat 813 118 4ms 11 Dec 2025 240th emgordon154 813 205 1,406ms 7 Mar 2025 First Prev 161–240 of 870 Next Last