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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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 1st saito-ta 🇯🇵 1,000 25 72ms 2 Oct 2024 2nd ovs-code 🇩🇪 980 29 2ms 2 Oct 2024 3rd khvdm 961 83 20ms 7 Jun 2025 4th bizy-coder 950 84 22ms 1 Oct 2024 4th pardouin 🇫🇷 950 84 21ms 1 Oct 2024 4th AlephSquirrel 950 84 22ms 1 Oct 2024 4th btnlq 950 84 21ms 1 Oct 2024 4th Seek64 🇩🇪 950 84 23ms 1 Oct 2024 4th m-tkach 🇺🇦 950 84 21ms 1 Oct 2024 4th Rubiksmath 950 84 21ms 7 Oct 2024 4th JayXon 🇺🇸 950 84 31ms 13 Oct 2024 4th kops-cg 950 84 20ms 22 Feb 2025 4th xnor-gate 950 84 23ms 23 Feb 2025 4th ryyyn 🇺🇸 950 84 24ms 4 Feb 2026 4th Steffan153 🇫🇮 950 84 21ms 21 Feb 2026 16th duckyluuk 🇳🇱 948 68 11ms 4 Oct 2024 16th JayXon 🇺🇸 948 68 10ms 4 Oct 2024 16th emplv 🇱🇻 948 68 10ms 24 Oct 2024 16th rucin93 🇵🇱 948 68 10ms 24 Oct 2024 16th sean-niemann 🇺🇸 948 68 16ms 13 Nov 2024 16th Steffan153 🇫🇮 948 68 10ms 11 Feb 2026 22nd 2bular 947 30 2ms 1 Oct 2024 22nd zacjl 947 30 3ms 3 Oct 2024 24th sisyphus-ppcg 🇦🇺 941 42 6ms 1 Oct 2024 24th saito-ta 🇯🇵 941 42 6ms 1 Oct 2024 26th JayXon 🇺🇸 940 51 39ms 13 Oct 2024 26th radarek 🇵🇱 940 51 35ms 23 Jul 2025 28th inventshah 939 85 22ms 4 Oct 2024 29th nwellnhof 🇩🇪 935 69 11ms 8 Oct 2024 30th AdrienHache 🇫🇷 931 39 51ms 2 Oct 2024 31st GrayJoKing 🇦🇺 931 41 162ms 1 Oct 2024 31st nwellnhof 🇩🇪 931 41 149ms 2 Oct 2024 33rd ovs-code 🇩🇪 931 42 32ms 1 Mar 2025 34th JayXon 🇺🇸 931 76 2ms 11 Oct 2024 34th rhdqor213 931 76 2ms 5 Dec 2025 36th canissimia 🇦🇶 928 47 2ms 30 Jan 2026 36th xsot 🇸🇬 928 47 2ms 22 Feb 2026 38th hallvabo 🇳🇴 928 86 22ms 4 Jun 2025 39th JayXon 🇺🇸 922 72 496ms 2 Oct 2024 40th stefangimmillaro 921 70 11ms 3 Oct 2024 41st primo-ppcg 🇹🇭 919 43 3ms 26 Jan 2025 42nd JayXon 🇺🇸 918 78 497ms 13 Oct 2024 42nd AdrienHache 🇫🇷 918 78 433ms 20 Sep 2025 44th nwellnhof 🇩🇪 917 51 388ms 1 Oct 2024 44th bitsandbeyond 🇳🇱 917 51 381ms 7 Oct 2024 46th bstrat 916 31 2ms 6 Oct 2024 47th JayXon 🇺🇸 910 62 534ms 13 Oct 2024 48th GrayJoKing 🇦🇺 908 71 12ms 1 Oct 2024 48th pardouin 🇫🇷 908 71 12ms 2 Oct 2024 48th ovs-code 🇩🇪 908 71 12ms 3 Oct 2024 48th vlpx 🇫🇮 908 71 12ms 23 Oct 2024 48th lukegustafson 🇺🇸 908 71 11ms 22 Feb 2026 53rd JayXon 🇺🇸 908 103 537ms 25 Sep 2025 54th blaztoma 🇱🇹 907 88 23ms 19 days ago 55th namelessiw 906 79 527ms 1 Aug 2025 56th JayXon 🇺🇸 906 96 448ms 11 Oct 2024 57th error256 905 63 1,422ms 7 Oct 2024 57th JayXon 🇺🇸 905 63 1,367ms 13 Oct 2024 59th emplv 🇱🇻 905 75 14ms 24 Oct 2024 60th sean-niemann 🇺🇸 904 64 877ms 16 Feb 2026 60th edsrzf 🇳🇿 904 64 784ms 21 Feb 2026 60th Steffan153 🇫🇮 904 64 853ms 27 Feb 2026 63rd JayXon 🇺🇸 904 71 135ms 1 Mar 2026 64th inventshah 904 74 2,447ms 25 Oct 2024 64th JayXon 🇺🇸 904 74 2,610ms 13 Nov 2024 64th pardouin 🇫🇷 904 74 2,613ms 17 Dec 2024 64th edsrzf 🇳🇿 904 74 2,435ms 21 Mar 2026 68th JayXon 🇺🇸 903 88 2ms 5 Oct 2024 68th edsrzf 🇳🇿 903 88 2ms 23 Nov 2025 70th JayXon 🇺🇸 903 104 156ms 31 May 2025 71st saito-ta 🇯🇵 901 54 3ms 1 Oct 2024 71st DialFrost 🇸🇬 901 54 3ms 11 Jan 2025 71st frankgraziano 901 54 3ms 23 Jan 2025 74th error256 897 60 1,103ms 1 Feb 2026 75th bizy-coder 897 74 469ms 1 Oct 2024 75th pardouin 🇫🇷 897 74 432ms 1 Oct 2024 75th m-tkach 🇺🇦 897 74 456ms 3 Oct 2024 75th Steffan153 🇫🇮 897 74 487ms 21 Feb 2026 79th mousetail 🇳🇱 896 52 6ms 25 Sep 2025 80th xsot 🇸🇬 896 72 14ms 10 Oct 2024 80th edsrzf 🇳🇿 896 72 10ms 20 Feb 2026 82nd KasperKivimaeki 🇫🇮 896 79 2ms 6 Dec 2025 83rd ovs-code 🇩🇪 895 63 554ms 2 Oct 2024 84th rucin93 🇵🇱 895 78 2ms 18 Nov 2025 84th JayXon 🇺🇸 895 78 2ms 19 Nov 2025 84th sean-niemann 🇺🇸 895 78 2ms 19 Nov 2025 84th edsrzf 🇳🇿 895 78 2ms 20 Feb 2026 84th Steffan153 🇫🇮 895 78 2ms 20 Feb 2026 89th nwellnhof 🇩🇪 895 80 497ms 2 Oct 2024 89th Yax42 🇫🇷 895 80 499ms 7 Feb 2025 91st canissimia 🇦🇶 893 28 45ms 2 Oct 2024 92nd GrayJoKing 🇦🇺 893 60 4ms 3 Oct 2024 93rd rucin93 🇵🇱 891 72 139ms 28 Feb 2026 93rd Steffan153 🇫🇮 891 72 130ms 28 Feb 2026 93rd sean-niemann 🇺🇸 891 72 126ms 5 days ago 96th JayXon 🇺🇸 891 134 341ms 3 Oct 2024 97th MeWhenI 🇻🇦 890 64 1,494ms 3 Oct 2024 98th nwellnhof 🇩🇪 890 105 665ms 25 Sep 2025 99th kgolf 888 32 3ms 15 Apr 2025 100th MeWhenI 🇻🇦 888 54 36ms 3 Oct 2024 1–100 of 1,013 Next Last