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Card Number Validation in all languages in chars. 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 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 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 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 ><> ALGOL 68 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 ArkScript 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 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 ArkScript 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 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 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 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 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 Chars Time Submitted 161st sean-niemann 🇺🇸 852 51 2ms 2 Oct 2024 162nd kg583 🇺🇸 851 134 43ms 8 days ago 163rd lifthrasiir 🇰🇷 850 76 10ms 16 Nov 2024 163rd snoozingnewt 🇨🇦 850 76 10ms 6 Dec 2025 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 Lv0Sys 🇵🇱 847 76 10ms 6 days ago 169th duckyluuk 🇳🇱 846 68 357ms 4 Oct 2024 170th primo-ppcg 🇹🇭 846 128 41ms 27 Apr 2025 171st lynn 846 131 138ms 8 Jan 2025 172nd KasperKivimaeki 🇫🇮 845 141 294ms 9 Oct 2025 173rd error256 844 94 2ms 7 Oct 2024 174th KasperKivimaeki 🇫🇮 844 103 474ms 8 Dec 2025 175th IanUtley 844 113 20ms 2 Oct 2024 176th sean-niemann 🇺🇸 844 114 41ms 2 Oct 2024 177th sean-niemann 🇺🇸 844 121 2ms 30 Nov 2024 177th edsrzf 🇳🇿 844 121 3ms 7 days ago 179th edsrzf 🇳🇿 843 98 7ms 3 days ago 180th m-tkach 🇺🇦 842 144 79ms 8 Oct 2024 181st xsot 🇸🇬 840 57 35ms 6 May 2025 182nd kg583 🇺🇸 840 86 4ms 8 days ago 183rd jatloe 839 77 11ms 1 Oct 2024 184th xsot 🇸🇬 839 82 2ms 6 May 2025 185th emplv 🇱🇻 839 142 295ms 2 Oct 2024 185th sean-niemann 🇺🇸 839 142 302ms 2 Oct 2024 187th GrayJoKing 🇦🇺 838 47 4ms 1 Oct 2024 187th Steffan153 🇫🇮 838 47 5ms 11 days ago 189th Shanethegamer 🇺🇸 838 67 258ms 3 Oct 2024 189th antimon2 🇯🇵 838 67 469ms 9 Oct 2024 191st edsrzf 🇳🇿 838 131 28ms 18 days ago 192nd edsrzf 🇳🇿 837 83 102ms 7 days ago 193rd snoozingnewt 🇨🇦 837 92 106ms 18 Dec 2025 194th JayXon 🇺🇸 837 109 1,368ms 5 Oct 2024 195th stefangimmillaro 836 68 1,290ms 2 Oct 2024 196th Shanethegamer 🇺🇸 836 77 10ms 1 Oct 2024 196th biocommando 🇫🇮 836 77 10ms 13 Jun 2025 198th sean-niemann 🇺🇸 836 81 10ms 20 Dec 2024 198th Steffan153 🇫🇮 836 81 12ms 17 days ago 200th emplv 🇱🇻 836 145 25ms 24 Oct 2024 201st edsrzf 🇳🇿 835 115 3ms 19 Dec 2025 202nd emgordon154 834 69 467ms 18 Nov 2024 203rd stefangimmillaro 834 80 2,338ms 12 Nov 2024 204th edsrzf 🇳🇿 833 108 82ms 26 Jul 2025 205th stefangimmillaro 833 112 140ms 4 Oct 2024 206th MeWhenI 🇻🇦 833 130 40ms 3 Oct 2024 207th edsrzf 🇳🇿 833 133 154ms 19 Dec 2025 208th MeWhenI 🇻🇦 833 143 304ms 2 Oct 2024 209th ovs-code 🇩🇪 833 200 1,401ms 19 Apr 2025 210th edsrzf 🇳🇿 832 137 44ms 16 Aug 2025 211th JayXon 🇺🇸 832 155 1,904ms 3 Oct 2024 212th qpwoeirut 829 78 10ms 1 Oct 2025 212th Flekay 🇩🇪 829 78 17ms 12 days ago 212th KatieLG 🇬🇧 829 78 17ms 6 hours ago 215th nwellnhof 🇩🇪 828 105 417ms 22 Jan 2026 216th dcgjb 826 78 10ms 6 May 2025 217th m-tkach 🇺🇦 825 58 39ms 8 Oct 2024 217th anter69 🇭🇺 825 58 63ms 2 days ago 219th stefangimmillaro 825 99 112ms 3 Oct 2024 220th retrohun 824 71 9ms 10 Jan 2025 221st ovs-code 🇩🇪 823 78 111ms 2 Oct 2024 222nd albanian-laundromat 822 70 375ms 3 Nov 2025 223rd primo-ppcg 🇹🇭 822 232 525ms 13 Aug 2025 224th sean-niemann 🇺🇸 820 48 4ms 9 Aug 2025 225th ovs-code 🇩🇪 820 65 5ms 30 Oct 2024 226th ovs-code 🇩🇪 820 106 434ms 1 Oct 2024 226th inventshah 820 106 435ms 1 Oct 2024 228th nwellnhof 🇩🇪 819 84 2ms 2 Oct 2024 228th ovs-code 🇩🇪 819 84 1ms 2 Nov 2024 228th inventshah 819 84 2ms 31 Mar 2025 231st MeWhenI 🇻🇦 819 114 470ms 7 Nov 2025 232nd frosster 🇨🇦 818 97 2ms 17 days ago 233rd GrayJoKing 🇦🇺 818 101 6ms 40 hours ago 234th MeWhenI 🇻🇦 818 183 14ms 2 Oct 2024 235th MeWhenI 🇻🇦 817 85 127ms 4 Oct 2024 236th MeWhenI 🇻🇦 817 92 10ms 24 Dec 2024 237th MeWhenI 🇻🇦 817 104 1,025ms 2 Oct 2024 238th canissimia 🇦🇶 817 130 3ms 4 Oct 2024 239th sisyphus-ppcg 🇦🇺 816 83 10ms 2 Oct 2024 240th MeWhenI 🇻🇦 816 85 2ms 5 Oct 2024 First Prev 161–240 of 899 Next Last