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 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 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 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 226th sisyphus-ppcg 🇦🇺 814 83 9ms 2 Oct 2024 227th MeWhenI 🇻🇦 814 85 2ms 5 Oct 2024 228th MeWhenI 🇻🇦 813 85 94ms 4 Oct 2024 229th GolfingSuccess 🇬🇷 813 98 16ms 5 Oct 2024 229th firegene 🇮🇪 813 98 18ms 21 Oct 2024 229th albanian-laundromat 813 98 16ms 3 Nov 2025 232nd emgordon154 813 205 499ms 7 Mar 2025 233rd Shanethegamer 🇺🇸 812 70 986ms 9 Apr 2025 234th ovs-code 🇩🇪 812 106 380ms 1 Oct 2024 234th inventshah 812 106 376ms 1 Oct 2024 236th sean-niemann 🇺🇸 811 115 335ms 24 Sep 2025 236th stefangimmillaro 811 115 329ms 6 Oct 2025 238th kg583 🇺🇸 810 124 7ms 20 Oct 2024 238th AlephSquirrel 810 124 7ms 21 Oct 2024 240th Natanaelel 🇸🇪 809 59 36ms 7 Feb 2025 241st kg583 🇺🇸 808 82 444ms 1 Oct 2024 241st sean-niemann 🇺🇸 808 82 373ms 23 Dec 2024 243rd stefangimmillaro 808 134 56ms 3 Oct 2024 244th stefangimmillaro 807 126 2ms 3 Oct 2024 245th GolfingSuccess 🇬🇷 806 31 69ms 5 Oct 2024 246th trinityy-7 805 80 10ms 23 Jul 2025 247th SirBogman 🇺🇸 805 99 16ms 8 Oct 2024 248th albanian-laundromat 805 148 255ms 5 days ago 249th error256 804 116 336ms 24 Sep 2025 250th GrayJoKing 🇦🇺 803 58 6ms 24 Oct 2024 251st xsot 🇸🇬 803 125 7ms 20 Oct 2024 252nd antimon2 🇯🇵 802 70 502ms 9 Oct 2024 253rd DialFrost 🇸🇬 802 106 25ms 23 Mar 2025 254th ovs-code 🇩🇪 802 119 14ms 1 Oct 2024 255th ovs-code 🇩🇪 801 75 1,110ms 1 Oct 2024 256th MeWhenI 🇻🇦 801 127 2ms 5 Oct 2024 256th albanian-laundromat 801 127 3ms 3 Nov 2025 258th Shanethegamer 🇺🇸 801 208 1,396ms 14 Apr 2025 258th DialFrost 🇸🇬 801 208 442ms 18 Apr 2025 260th MeWhenI 🇻🇦 800 88 1ms 2 Oct 2024 261st stefangimmillaro 800 89 381ms 4 Oct 2024 262nd Shanethegamer 🇺🇸 800 138 171ms 3 Oct 2024 263rd sean-niemann 🇺🇸 799 92 112ms 1 Oct 2025 264th duckyluuk 🇳🇱 798 83 362ms 3 Oct 2024 264th emgordon154 798 83 440ms 18 Nov 2024 266th albanian-laundromat 797 74 954ms 3 Nov 2025 267th anter69 🇭🇺 797 100 16ms 1 Oct 2024 267th bzijlema 🇳🇱 797 100 16ms 10 Oct 2024 267th bricknellj 797 100 16ms 4 Mar 2025 270th edsrzf 🇳🇿 797 117 325ms 24 Sep 2025 271st 2bular 796 49 31ms 8 Nov 2025 272nd tayloia 🇬🇧 795 81 9ms 3 Oct 2024 272nd targrik 795 81 10ms 8 Feb 2025 274th DialFrost 🇸🇬 795 85 6ms 1 Oct 2024 274th xsot 🇸🇬 795 85 4ms 7 Oct 2024 276th stefangimmillaro 794 87 100ms 4 Oct 2024 277th Shanethegamer 🇺🇸 794 102 384ms 4 Oct 2024 278th Shanethegamer 🇺🇸 794 128 2ms 3 Oct 2024 279th kg583 🇺🇸 794 160 39ms 13 Feb 2025 279th CLOStrophobic 🇮🇹 794 160 41ms 27 Feb 2025 281st albanian-laundromat 793 120 42ms 3 Nov 2025 282nd edsrzf 🇳🇿 791 76 1,165ms 1 Oct 2024 283rd DialFrost 🇸🇬 791 84 2,866ms 26 Oct 2024 284th MeWhenI 🇻🇦 791 90 419ms 2 Oct 2024 285th jared-hughes 791 203 101ms 20 Dec 2024 286th saito-ta 🇯🇵 790 74 7ms 1 Oct 2024 287th pardouin 🇫🇷 789 81 133ms 29 Jan 2025 287th ovs-code 🇩🇪 789 81 122ms 17 Apr 2025 289th ovs-code 🇩🇪 789 84 372ms 3 Oct 2024 289th Shanethegamer 🇺🇸 789 84 381ms 3 Oct 2024 291st lifthrasiir 🇰🇷 789 101 16ms 21 Nov 2024 291st btjones0 789 101 16ms 2 Dec 2024 293rd MeWhenI 🇻🇦 789 109 395ms 2 Oct 2024 294th emgordon154 789 151 262ms 17 Jan 2025 295th Natanaelel 🇸🇪 788 48 115ms 1 Oct 2024 296th KingSkyrock 🇺🇸 785 82 10ms 14 Oct 2024 297th Shanethegamer 🇺🇸 785 88 99ms 4 Oct 2024 298th kg583 🇺🇸 785 94 4ms 25 days ago 299th SirBogman 🇺🇸 785 138 43ms 11 Jul 2025 300th edsrzf 🇳🇿 784 119 152ms 23 Jul 2025 First Prev 226–300 of 842 Next Last