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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 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 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 ArkScript 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 ArkScript 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 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 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 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 401st Shanethegamer 🇺🇸 739 172 39ms 2 Oct 2024 402nd neihousaigaai 738 108 16ms 4 Oct 2024 402nd StefanHabel 🇨🇦 738 108 16ms 23 Jan 2025 402nd CaedenHarper 🇨🇦 738 108 16ms 22 Jul 2025 402nd BrunoVisnadi 🇧🇷 738 108 16ms 1 Oct 2025 406th lifthrasiir 🇰🇷 736 90 496ms 2 Dec 2024 407th MeWhenI 🇻🇦 736 111 116ms 2 Oct 2024 408th MeWhenI 🇻🇦 735 34 58ms 2 Oct 2024 408th emgordon154 735 34 69ms 11 Sep 2025 410th stefangimmillaro 735 92 8ms 2 Oct 2024 410th Shanethegamer 🇺🇸 735 92 5ms 3 Oct 2024 412th Shanethegamer 🇺🇸 735 100 122ms 24 May 2025 413th Shanethegamer 🇺🇸 733 116 1,026ms 1 Oct 2024 414th kirjavascript 731 88 10ms 15 Mar 2025 415th Shanethegamer 🇺🇸 731 101 4ms 2 Oct 2024 416th stefangimmillaro 731 114 326ms 13 Oct 2024 417th edsrzf 🇳🇿 730 52 118ms 14 days ago 418th MeWhenI 🇻🇦 730 174 41ms 13 Feb 2025 419th anter69 🇭🇺 729 78 1,271ms 1 Oct 2024 420th Shanethegamer 🇺🇸 729 112 99ms 3 Oct 2024 421st error256 728 98 416ms 12 days ago 422nd MeWhenI 🇻🇦 726 88 131ms 2 Oct 2024 422nd Shanethegamer 🇺🇸 726 88 140ms 8 Jan 2025 424th cros107 🇦🇺 724 110 16ms 1 Jan 2025 424th guilhem-roy 🇫🇷 724 110 17ms 29 May 2025 424th Lv0Sys 🇵🇱 724 110 17ms 10 Dec 2025 427th Shanethegamer 🇺🇸 724 126 1,391ms 2 Oct 2024 428th dtbao20 🇻🇳 723 89 9ms 1 Oct 2024 428th madeforlosers 723 89 9ms 17 Oct 2024 428th junkondo-jp 723 89 10ms 14 Dec 2024 428th alexsave 723 89 10ms 10 days ago 432nd annaproxy 723 132 14ms 1 Oct 2024 433rd MeWhenI 🇻🇦 721 179 1,697ms 7 Nov 2025 434th weeble 720 74 6ms 1 Jul 2025 435th MeWhenI 🇻🇦 720 78 309ms 2 Oct 2024 436th Shanethegamer 🇺🇸 720 96 2ms 3 Oct 2024 437th voytxt 🇨🇿 718 89 141ms 17 Apr 2025 438th mousetail 🇳🇱 718 111 16ms 6 Oct 2024 439th snyderek 🇺🇸 715 121 53ms 1 Oct 2024 440th anter69 🇭🇺 713 67 38ms 1 Oct 2024 441st SirBogman 🇺🇸 713 93 405ms 23 Jul 2025 441st snoozingnewt 🇨🇦 713 93 412ms 6 Dec 2025 443rd h3ra993huskp 🇯🇵 713 131 422ms 30 Nov 2025 444th OllieBoyne 🇬🇧 712 112 16ms 17 Oct 2024 444th WillConker 712 112 10ms 22 Oct 2024 444th maxgodfrey2004 🇨🇦 712 112 10ms 4 Jan 2025 444th Babafaba 712 112 16ms 11 Nov 2025 448th rzv-me 711 95 6ms 5 Oct 2024 449th Natanaelel 🇸🇪 709 55 34ms 1 Mar 2025 450th snoozingnewt 🇨🇦 709 95 79ms 23 Oct 2025 451st DialFrost 🇸🇬 709 106 12ms 13 Dec 2024 452nd DialFrost 🇸🇬 707 132 214ms 8 Apr 2025 453rd Shanethegamer 🇺🇸 706 118 357ms 2 Oct 2024 454th cbrt-x 706 157 139ms 1 Oct 2024 455th Alex-x90 🇺🇸 705 100 2ms 1 Oct 2024 456th SB-945 705 113 16ms 1 Oct 2024 456th Artemis21 🇬🇧 705 113 16ms 23 Jan 2025 456th fkantelberg 705 113 10ms 11 Jul 2025 459th MeWhenI 🇻🇦 704 115 435ms 5 Oct 2024 460th janlelis 703 68 41ms 1 Oct 2024 461st BlankSpruce 703 123 408ms 1 Oct 2024 462nd emgordon154 702 76 5ms 7 Jun 2025 463rd mousetail 🇳🇱 701 133 153ms 3 Oct 2024 464th LukeBridges 🇬🇧 700 92 9ms 3 Oct 2024 465th HumanoidCPU 699 114 62ms 7 Mar 2025 466th emgordon154 698 101 2ms 25 Nov 2024 467th Alex-x90 🇺🇸 698 124 406ms 1 Oct 2024 467th Herbert00709 🇵🇱 698 124 56ms 14 Jun 2025 469th tobeannouncd 697 159 146ms 13 Dec 2024 470th emgordon154 696 134 214ms 25 Feb 2025 471st Shanethegamer 🇺🇸 693 41 3ms 4 Oct 2024 472nd jipsong 🇩🇪 693 115 17ms 12 May 2025 472nd luuumine 🇫🇷 693 115 20ms 2 Dec 2025 472nd Bmrl7 693 115 10ms 25 Dec 2025 472nd KatieLG 🇬🇧 693 115 16ms 19 days ago 476th Salutations45 692 93 10ms 17 Nov 2024 476th strattonwhisler 692 93 9ms 26 Mar 2025 478th pardouin 🇫🇷 690 57 4ms 3 Oct 2024 479th NickTheEASDude 🇺🇸 688 115 3ms 17 Dec 2024 480th rowechenzhong 687 116 9ms 17 Oct 2024 First Prev 401–480 of 870 Next Last