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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 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 ArkScript 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 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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 401st kg583 🇺🇸 752 156 48ms 20 days ago 402nd stackofbears 750 52 34ms 14 Mar 2025 403rd Maznek 750 86 9ms 4 Oct 2024 404th MeWhenI 🇻🇦 750 89 2,590ms 24 Oct 2024 405th sean-niemann 🇺🇸 749 116 459ms 24 Oct 2024 405th luuumine 🇫🇷 749 116 448ms 15 Dec 2025 407th Shanethegamer 🇺🇸 748 64 36ms 3 Oct 2024 407th Andriamanitra 🇫🇮 748 64 35ms 5 Oct 2024 409th MeWhenI 🇻🇦 748 106 1ms 2 Oct 2024 410th rak1507 🇬🇧 747 38 2ms 30 Dec 2024 411th sean-niemann 🇺🇸 747 93 113ms 24 Oct 2024 412th commandz0 🇺🇸 745 107 17ms 7 Oct 2024 412th zbreit 🇺🇸 745 107 16ms 29 Oct 2024 412th StardustGogeta 745 107 17ms 30 Oct 2024 412th ZakkkkAttackkkk 🇵🇭 745 107 16ms 8 Feb 2025 412th InigoK 🇺🇸 745 107 17ms 22 Sep 2025 412th Lv0Sys 🇵🇱 745 107 17ms 22 Feb 2026 418th Natanaelel 🇸🇪 744 53 3ms 10 Jan 2026 419th Shanethegamer 🇺🇸 744 121 89ms 3 Oct 2024 420th SirBogman 🇺🇸 741 63 317ms 23 Jul 2025 421st KrausRaus 🇺🇸 741 87 9ms 1 Oct 2024 421st GeorgeStechman 🇬🇧 741 87 9ms 24 Oct 2024 421st coreynash 741 87 9ms 13 Feb 2025 424th Shanethegamer 🇺🇸 741 90 2,577ms 28 Oct 2024 424th ScottHamper 741 90 2,783ms 11 Dec 2025 426th DialFrost 🇸🇬 740 76 813ms 9 Oct 2024 427th neihousaigaai 739 108 17ms 4 Oct 2024 427th StefanHabel 🇨🇦 739 108 15ms 23 Jan 2025 427th CaedenHarper 🇨🇦 739 108 17ms 22 Jul 2025 430th lifthrasiir 🇰🇷 738 90 459ms 2 Dec 2024 431st anter69 🇭🇺 736 65 38ms 25 Feb 2026 432nd stefangimmillaro 736 92 8ms 2 Oct 2024 432nd Shanethegamer 🇺🇸 736 92 5ms 3 Oct 2024 434th MeWhenI 🇻🇦 736 111 127ms 2 Oct 2024 435th MeWhenI 🇻🇦 735 34 54ms 2 Oct 2024 435th emgordon154 735 34 62ms 11 Sep 2025 435th plcc0 735 34 69ms 31 Jan 2026 438th Shanethegamer 🇺🇸 735 100 161ms 24 May 2025 439th Kacarott 🇦🇺 734 73 1,111ms 1 Oct 2024 439th chunes3 🇺🇸 734 73 1,046ms 2 Oct 2024 441st DialFrost 🇸🇬 734 131 7ms 11 Dec 2024 442nd kirjavascript 733 88 9ms 15 Mar 2025 443rd Shanethegamer 🇺🇸 733 116 1,027ms 1 Oct 2024 444th stefangimmillaro 731 114 376ms 13 Oct 2024 445th edsrzf 🇳🇿 730 52 144ms 16 Jan 2026 446th Shanethegamer 🇺🇸 729 112 109ms 3 Oct 2024 447th Shanethegamer 🇺🇸 729 132 7ms 2 Oct 2024 448th error256 728 98 436ms 17 Jan 2026 449th MeWhenI 🇻🇦 726 88 136ms 2 Oct 2024 449th Shanethegamer 🇺🇸 726 88 146ms 8 Jan 2025 451st cros107 🇦🇺 725 110 17ms 1 Jan 2025 451st guilhem-roy 🇫🇷 725 110 17ms 29 May 2025 453rd dtbao20 🇻🇳 724 89 10ms 1 Oct 2024 453rd madeforlosers 724 89 9ms 17 Oct 2024 453rd junkondo-jp 724 89 9ms 14 Dec 2024 453rd alexsave 724 89 10ms 20 Jan 2026 457th Shanethegamer 🇺🇸 723 96 2ms 3 Oct 2024 458th annaproxy 723 132 15ms 1 Oct 2024 459th dokutan 722 92 392ms 23 days ago 460th MeWhenI 🇻🇦 721 78 316ms 2 Oct 2024 461st MeWhenI 🇻🇦 721 102 155ms 8 days ago 462nd MeWhenI 🇻🇦 721 179 1,697ms 7 Nov 2025 463rd weeble 720 74 6ms 1 Jul 2025 464th mousetail 🇳🇱 719 111 17ms 6 Oct 2024 465th Shanethegamer 🇺🇸 719 126 1,342ms 2 Oct 2024 466th voytxt 🇨🇿 718 89 153ms 17 Apr 2025 467th snyderek 🇺🇸 718 121 61ms 1 Oct 2024 468th ovs-code 🇩🇪 714 75 1,104ms 1 Oct 2024 469th SirBogman 🇺🇸 714 93 503ms 23 Jul 2025 469th snoozingnewt 🇨🇦 714 93 469ms 6 Dec 2025 471st h3ra993huskp 🇯🇵 714 131 422ms 30 Nov 2025 472nd rzv-me 713 95 6ms 5 Oct 2024 473rd DialFrost 🇸🇬 713 106 12ms 13 Dec 2024 474th OllieBoyne 🇬🇧 712 112 17ms 17 Oct 2024 474th WillConker 712 112 12ms 22 Oct 2024 474th maxgodfrey2004 🇨🇦 712 112 10ms 4 Jan 2025 474th Babafaba 712 112 16ms 11 Nov 2025 478th MeWhenI 🇻🇦 710 115 453ms 5 Oct 2024 479th DialFrost 🇸🇬 710 132 229ms 8 Apr 2025 480th Natanaelel 🇸🇪 709 55 34ms 1 Mar 2025 First Prev 401–480 of 930 Next Last