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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 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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi 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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 226th stefangimmillaro 807 126 2ms 3 Oct 2024 227th GolfingSuccess 🇬🇷 806 31 69ms 5 Oct 2024 228th emgordon154 805 72 118ms 2 Oct 2024 229th trinityy-7 804 80 9ms 23 Jul 2025 230th error256 804 116 336ms 24 Sep 2025 231st GrayJoKing 🇦🇺 803 58 7ms 24 Oct 2024 232nd xsot 🇸🇬 803 125 7ms 20 Oct 2024 233rd DialFrost 🇸🇬 802 106 25ms 23 Mar 2025 234th ovs-code 🇩🇪 802 119 25ms 1 Oct 2024 235th ovs-code 🇩🇪 801 75 1,110ms 1 Oct 2024 236th MeWhenI 🇻🇦 801 127 2ms 5 Oct 2024 236th albanian-laundromat 801 127 3ms 25 days ago 238th Shanethegamer 🇺🇸 801 208 1,586ms 14 Apr 2025 238th DialFrost 🇸🇬 801 208 453ms 18 Apr 2025 240th stefangimmillaro 800 89 381ms 4 Oct 2024 241st Shanethegamer 🇺🇸 800 138 171ms 3 Oct 2024 242nd MeWhenI 🇻🇦 799 88 2ms 2 Oct 2024 243rd Babafaba 797 81 19ms 17 days ago 244th edsrzf 🇳🇿 797 117 325ms 24 Sep 2025 245th 2bular 796 49 31ms 19 days ago 246th DialFrost 🇸🇬 795 85 6ms 1 Oct 2024 246th xsot 🇸🇬 795 85 4ms 7 Oct 2024 248th sean-niemann 🇺🇸 795 92 112ms 1 Oct 2025 249th albanian-laundromat 794 74 784ms 25 days ago 250th tayloia 🇬🇧 794 81 10ms 3 Oct 2024 250th targrik 794 81 9ms 8 Feb 2025 252nd stefangimmillaro 794 87 102ms 4 Oct 2024 253rd Shanethegamer 🇺🇸 794 102 384ms 4 Oct 2024 254th Shanethegamer 🇺🇸 794 128 2ms 3 Oct 2024 255th albanian-laundromat 793 120 42ms 25 days ago 256th edsrzf 🇳🇿 791 76 1,165ms 1 Oct 2024 257th DialFrost 🇸🇬 791 84 2,866ms 26 Oct 2024 258th MeWhenI 🇻🇦 791 90 419ms 2 Oct 2024 259th jared-hughes 791 203 101ms 20 Dec 2024 260th saito-ta 🇯🇵 790 74 8ms 1 Oct 2024 261st Natanaelel 🇸🇪 788 48 119ms 1 Oct 2024 262nd MeWhenI 🇻🇦 788 109 382ms 2 Oct 2024 263rd emgordon154 788 151 255ms 17 Jan 2025 264th SB-945 787 82 16ms 1 Oct 2024 264th HumanoidCPU 787 82 64ms 7 Mar 2025 264th fkantelberg 787 82 10ms 11 Jul 2025 264th BrunoVisnadi 🇧🇷 787 82 9ms 21 Sep 2025 268th KingSkyrock 🇺🇸 785 82 9ms 14 Oct 2024 269th Shanethegamer 🇺🇸 785 88 104ms 4 Oct 2024 270th kg583 🇺🇸 785 94 4ms 15 days ago 271st SirBogman 🇺🇸 785 138 43ms 11 Jul 2025 272nd edsrzf 🇳🇿 784 119 152ms 23 Jul 2025 272nd namelessiw 784 119 346ms 9 Oct 2025 274th stefangimmillaro 783 61 36ms 1 Oct 2024 275th Shanethegamer 🇺🇸 783 152 260ms 3 Oct 2024 275th targrik 783 152 262ms 7 Jul 2025 277th Shanethegamer 🇺🇸 782 91 358ms 3 Oct 2024 278th SirBogman 🇺🇸 780 50 36ms 8 Jul 2025 279th MeWhenI 🇻🇦 780 122 55ms 5 Oct 2024 280th sean-niemann 🇺🇸 779 107 331ms 3 Oct 2024 281st Bmrl7 778 83 10ms 3 Oct 2024 281st snoozingnewt 🇺🇸 778 83 9ms 8 days ago 283rd bizy-coder 777 74 527ms 1 Oct 2024 283rd m-tkach 🇺🇦 777 74 636ms 3 Oct 2024 285th adriweb 🇫🇷 777 102 2ms 5 Oct 2024 286th Shanethegamer 🇺🇸 777 120 332ms 24 Sep 2025 287th emgordon154 777 166 1,640ms 2 Oct 2024 288th m-tkach 🇺🇦 776 131 3ms 4 Oct 2024 289th uttumuttu 🇫🇮 775 83 9ms 1 Oct 2024 289th KatieLG 🇬🇧 775 83 9ms 1 Oct 2024 289th Larento 775 83 9ms 4 Nov 2024 289th Andrey-Plotnikov 775 83 9ms 13 Jan 2025 289th nathanadams 🇳🇿 775 83 9ms 6 Oct 2025 294th duckyluuk 🇳🇱 775 97 9ms 3 days ago 295th DialFrost 🇸🇬 773 76 734ms 30 Aug 2025 296th Natanaelel 🇸🇪 772 143 184ms 20 Apr 2025 297th sean-niemann 🇺🇸 771 105 440ms 1 Oct 2024 298th DialFrost 🇸🇬 771 121 322ms 24 Sep 2025 299th sisyphus-ppcg 🇦🇺 770 62 39ms 3 Oct 2024 300th Waffle3z 770 103 4ms 2 Oct 2024 First Prev 226–300 of 829 Next Last