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 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 ><> 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 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 Bytes Time Submitted 376th commandblockguy 🇺🇸 745 107 15ms 7 Oct 2024 376th zbreit 🇺🇸 745 107 16ms 29 Oct 2024 376th StardustGogeta 745 107 16ms 30 Oct 2024 376th ZakkkkAttackkkk 🇵🇭 745 107 16ms 8 Feb 2025 376th InigoK 🇺🇸 745 107 16ms 22 Sep 2025 381st Shanethegamer 🇺🇸 744 121 83ms 3 Oct 2024 382nd sean-niemann 🇺🇸 743 93 101ms 24 Oct 2024 383rd sean-niemann 🇺🇸 743 116 469ms 24 Oct 2024 383rd luuumine 🇫🇷 743 116 517ms 2 days ago 385th SirBogman 🇺🇸 741 63 278ms 23 Jul 2025 386th GrayJoKing 🇦🇺 740 79 1,204ms 1 Oct 2024 387th KrausRaus 🇺🇸 740 87 9ms 1 Oct 2024 387th GeorgeStechman 🇬🇧 740 87 9ms 24 Oct 2024 387th coreynash 740 87 9ms 13 Feb 2025 390th Shanethegamer 🇺🇸 740 90 3,803ms 28 Oct 2024 390th ScottHamper 740 90 2,700ms 6 days ago 392nd DialFrost 🇸🇬 739 76 1,019ms 9 Oct 2024 393rd Shanethegamer 🇺🇸 739 172 39ms 2 Oct 2024 394th neihousaigaai 738 108 16ms 4 Oct 2024 394th StefanHabel 🇨🇦 738 108 16ms 23 Jan 2025 394th CaedenHarper 🇨🇦 738 108 16ms 22 Jul 2025 394th BrunoVisnadi 🇧🇷 738 108 16ms 1 Oct 2025 398th lifthrasiir 🇰🇷 736 90 471ms 2 Dec 2024 399th MeWhenI 🇻🇦 736 111 117ms 2 Oct 2024 400th MeWhenI 🇻🇦 735 34 64ms 2 Oct 2024 400th emgordon154 735 34 63ms 11 Sep 2025 402nd stefangimmillaro 735 92 9ms 2 Oct 2024 402nd Shanethegamer 🇺🇸 735 92 5ms 3 Oct 2024 404th Shanethegamer 🇺🇸 735 100 116ms 24 May 2025 405th Shanethegamer 🇺🇸 733 116 18ms 1 Oct 2024 406th Shanethegamer 🇺🇸 732 156 30ms 2 Oct 2024 407th kirjavascript 731 88 9ms 15 Mar 2025 408th Shanethegamer 🇺🇸 731 101 4ms 2 Oct 2024 409th stefangimmillaro 731 114 326ms 13 Oct 2024 410th MeWhenI 🇻🇦 730 174 41ms 13 Feb 2025 411th anter69 🇭🇺 729 78 1,023ms 1 Oct 2024 412th Shanethegamer 🇺🇸 729 112 106ms 3 Oct 2024 413th MeWhenI 🇻🇦 726 88 128ms 2 Oct 2024 413th Shanethegamer 🇺🇸 726 88 148ms 8 Jan 2025 415th cros107 🇦🇺 724 110 16ms 1 Jan 2025 415th guilhem-roy 🇫🇷 724 110 17ms 29 May 2025 415th Lv0Sys 🇵🇱 724 110 17ms 7 days ago 418th Shanethegamer 🇺🇸 724 126 1,275ms 2 Oct 2024 419th dtbao20 🇻🇳 723 89 10ms 1 Oct 2024 419th madeforlosers 723 89 8ms 17 Oct 2024 419th junkondo-jp 723 89 9ms 14 Dec 2024 422nd annaproxy 723 132 14ms 1 Oct 2024 423rd MeWhenI 🇻🇦 721 179 1,697ms 7 Nov 2025 424th weeble 720 74 6ms 1 Jul 2025 425th MeWhenI 🇻🇦 720 78 416ms 2 Oct 2024 426th Shanethegamer 🇺🇸 720 96 2ms 3 Oct 2024 427th voytxt 🇨🇿 718 89 129ms 17 Apr 2025 428th mousetail 🇳🇱 718 111 16ms 6 Oct 2024 429th alexsave 715 90 9ms 28 Oct 2024 430th anter69 🇭🇺 713 67 47ms 1 Oct 2024 431st SirBogman 🇺🇸 713 93 384ms 23 Jul 2025 431st snoozingnewt 🇨🇦 713 93 407ms 11 days ago 433rd snyderek 🇺🇸 712 121 53ms 1 Oct 2024 434th h3ra993huskp 🇯🇵 712 131 497ms 17 days ago 435th rzv-me 711 95 5ms 5 Oct 2024 436th OllieBoyne 🇬🇧 711 112 16ms 17 Oct 2024 436th WillConker 711 112 10ms 22 Oct 2024 436th maxgodfrey2004 🇨🇦 711 112 10ms 4 Jan 2025 436th Babafaba 711 112 16ms 11 Nov 2025 440th Natanaelel 🇸🇪 709 55 34ms 1 Mar 2025 441st snoozingnewt 🇨🇦 709 95 79ms 23 Oct 2025 442nd DialFrost 🇸🇬 709 106 11ms 13 Dec 2024 443rd DialFrost 🇸🇬 707 132 225ms 8 Apr 2025 444th Shanethegamer 🇺🇸 706 118 357ms 2 Oct 2024 445th SB-945 705 113 16ms 1 Oct 2024 445th Artemis21 🇬🇧 705 113 16ms 23 Jan 2025 445th fkantelberg 705 113 10ms 11 Jul 2025 448th MeWhenI 🇻🇦 704 115 435ms 5 Oct 2024 448th emgordon154 704 115 95ms 8 days ago 450th Alex-x90 🇺🇸 703 100 2ms 1 Oct 2024 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