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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 241st CLOStrophobic 🇮🇹 815 119 6ms 24 Feb 2025 242nd lifthrasiir 🇰🇷 815 197 9ms 19 Dec 2024 243rd albanian-laundromat 813 118 4ms 11 Dec 2025 244th emgordon154 813 205 1,404ms 7 Mar 2025 245th Shanethegamer 🇺🇸 812 70 1,296ms 9 Apr 2025 246th sean-niemann 🇺🇸 812 115 361ms 24 Sep 2025 246th stefangimmillaro 812 115 671ms 6 Oct 2025 248th Natanaelel 🇸🇪 811 59 35ms 7 Feb 2025 249th lifthrasiir 🇰🇷 810 71 419ms 2 Dec 2024 250th saito-ta 🇯🇵 810 85 1ms 1 Oct 2024 251st stefangimmillaro 810 126 2ms 3 Oct 2024 252nd stefangimmillaro 808 134 41ms 3 Oct 2024 253rd emgordon154 807 72 136ms 2 Oct 2024 253rd rucin93 🇵🇱 807 72 135ms 3 hours ago 255th GolfingSuccess 🇬🇷 806 31 72ms 5 Oct 2024 256th trinityy-7 805 80 11ms 23 Jul 2025 257th error256 805 116 494ms 24 Sep 2025 258th albanian-laundromat 805 148 281ms 3 Dec 2025 259th MeWhenI 🇻🇦 804 127 2ms 5 Oct 2024 259th albanian-laundromat 804 127 3ms 3 Nov 2025 261st GrayJoKing 🇦🇺 803 58 6ms 24 Oct 2024 262nd Shanethegamer 🇺🇸 803 138 142ms 3 Oct 2024 263rd stefangimmillaro 802 89 453ms 4 Oct 2024 264th DialFrost 🇸🇬 802 106 24ms 23 Mar 2025 265th ovs-code 🇩🇪 802 119 16ms 1 Oct 2024 266th albanian-laundromat 802 120 42ms 3 Nov 2025 267th edsrzf 🇳🇿 801 104 437ms 7 days ago 268th Shanethegamer 🇺🇸 801 208 1,404ms 14 Apr 2025 268th DialFrost 🇸🇬 801 208 1,411ms 18 Apr 2025 270th anter69 🇭🇺 800 71 1,213ms 2 days ago 271st snoozingnewt 🇨🇦 799 72 442ms 6 Dec 2025 272nd sean-niemann 🇺🇸 799 92 116ms 1 Oct 2025 273rd Babafaba 798 81 17ms 11 Nov 2025 274th stefangimmillaro 798 87 113ms 4 Oct 2024 275th DialFrost 🇸🇬 797 85 7ms 1 Oct 2024 275th xsot 🇸🇬 797 85 5ms 7 Oct 2024 277th MeWhenI 🇻🇦 797 109 450ms 2 Oct 2024 278th Shanethegamer 🇺🇸 797 128 2ms 3 Oct 2024 279th 2bular 796 49 31ms 8 Nov 2025 280th m-tkach 🇺🇦 796 138 29ms 3 Oct 2024 281st tayloia 🇬🇧 795 81 12ms 3 Oct 2024 281st targrik 795 81 12ms 8 Feb 2025 283rd DialFrost 🇸🇬 794 84 2,408ms 26 Oct 2024 284th Shanethegamer 🇺🇸 794 102 451ms 4 Oct 2024 285th MeWhenI 🇻🇦 793 90 438ms 2 Oct 2024 286th Natanaelel 🇸🇪 791 48 118ms 1 Oct 2024 287th jared-hughes 791 203 88ms 20 Dec 2024 288th saito-ta 🇯🇵 790 74 7ms 1 Oct 2024 289th Shanethegamer 🇺🇸 789 88 113ms 4 Oct 2024 290th MeWhenI 🇻🇦 789 122 39ms 5 Oct 2024 291st emgordon154 789 151 286ms 17 Jan 2025 292nd SB-945 788 82 17ms 1 Oct 2024 292nd HumanoidCPU 788 82 65ms 7 Mar 2025 292nd fkantelberg 788 82 11ms 11 Jul 2025 292nd BrunoVisnadi 🇧🇷 788 82 10ms 21 Sep 2025 296th emgordon154 787 164 1,815ms 22 Dec 2025 297th stefangimmillaro 785 61 35ms 1 Oct 2024 298th KingSkyrock 🇺🇸 785 82 10ms 14 Oct 2024 299th namelessiw 785 119 565ms 9 Oct 2025 300th SirBogman 🇺🇸 785 138 39ms 11 Jul 2025 301st Shanethegamer 🇺🇸 784 91 455ms 3 Oct 2024 302nd edsrzf 🇳🇿 784 119 153ms 23 Jul 2025 303rd Shanethegamer 🇺🇸 784 152 281ms 3 Oct 2024 303rd targrik 784 152 283ms 7 Jul 2025 305th AlephSquirrel 783 124 7ms 21 Oct 2024 306th MeWhenI 🇻🇦 782 88 1ms 2 Oct 2024 307th SirBogman 🇺🇸 780 50 32ms 8 Jul 2025 308th albanian-laundromat 779 74 1,047ms 3 Nov 2025 309th Bmrl7 779 83 10ms 3 Oct 2024 310th sean-niemann 🇺🇸 779 107 375ms 3 Oct 2024 311th m-tkach 🇺🇦 779 131 2ms 4 Oct 2024 312th bizy-coder 778 74 477ms 1 Oct 2024 312th m-tkach 🇺🇦 778 74 508ms 3 Oct 2024 314th Shanethegamer 🇺🇸 778 120 364ms 24 Sep 2025 315th adriweb 🇫🇷 777 102 1ms 5 Oct 2024 316th uttumuttu 🇫🇮 776 83 10ms 1 Oct 2024 316th KatieLG 🇬🇧 776 83 9ms 1 Oct 2024 316th Larento 776 83 10ms 4 Nov 2024 316th Andrey-Plotnikov 776 83 10ms 13 Jan 2025 316th nathanadams 🇳🇿 776 83 11ms 6 Oct 2025 First Prev 241–320 of 899 Next Last