Card Number Validation in all languages in bytes. Cheevos Holes Recent Holes Langs Medals Misc 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 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 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 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 Erlang 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 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 Erlang 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 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 Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 375th GeorgeStechman 🇬🇧 739 87 9ms 24 Oct 2024 375th coreynash 739 87 10ms 13 Feb 2025 378th Shanethegamer 🇺🇸 739 172 42ms 2 Oct 2024 379th Shanethegamer 🇺🇸 738 90 4,383ms 28 Oct 2024 380th neihousaigaai 737 108 17ms 4 Oct 2024 380th StefanHabel 🇨🇦 737 108 24ms 23 Jan 2025 380th CaedenHarper 🇨🇦 737 108 17ms 22 Jul 2025 380th BrunoVisnadi 🇧🇷 737 108 16ms 1 Oct 2025 384th MeWhenI 🇻🇦 735 34 61ms 2 Oct 2024 384th emgordon154 735 34 65ms 11 Sep 2025 386th lifthrasiir 🇰🇷 735 90 568ms 2 Dec 2024 387th stefangimmillaro 735 92 7ms 2 Oct 2024 387th Shanethegamer 🇺🇸 735 92 5ms 3 Oct 2024 389th MeWhenI 🇻🇦 733 111 122ms 2 Oct 2024 390th Shanethegamer 🇺🇸 733 116 21ms 1 Oct 2024 391st Shanethegamer 🇺🇸 732 100 116ms 24 May 2025 392nd Shanethegamer 🇺🇸 732 156 30ms 2 Oct 2024 393rd kirjavascript 731 88 10ms 15 Mar 2025 394th stefangimmillaro 731 114 343ms 13 Oct 2024 395th MeWhenI 🇻🇦 730 174 39ms 13 Feb 2025 396th anter69 🇭🇺 729 78 1,023ms 1 Oct 2024 397th Shanethegamer 🇺🇸 729 96 4ms 3 Oct 2024 398th MeWhenI 🇻🇦 726 88 130ms 2 Oct 2024 398th Shanethegamer 🇺🇸 726 88 132ms 8 Jan 2025 400th Shanethegamer 🇺🇸 726 112 104ms 3 Oct 2024 401st Shanethegamer 🇺🇸 724 101 5ms 2 Oct 2024 402nd cros107 🇦🇺 724 110 17ms 1 Jan 2025 402nd guilhem-roy 🇫🇷 724 110 18ms 29 May 2025 404th Shanethegamer 🇺🇸 724 126 1,241ms 2 Oct 2024 405th dtbao20 🇻🇳 723 89 10ms 1 Oct 2024 405th madeforlosers 723 89 10ms 17 Oct 2024 405th junkondo-jp 723 89 9ms 14 Dec 2024 408th annaproxy 723 132 19ms 1 Oct 2024 409th MeWhenI 🇻🇦 721 179 1,554ms 23 hours ago 410th weeble 720 74 8ms 1 Jul 2025 411th MeWhenI 🇻🇦 720 78 336ms 2 Oct 2024 412th voytxt 🇨🇿 718 89 152ms 17 Apr 2025 413th mousetail 🇳🇱 717 111 22ms 6 Oct 2024 414th alexsave 715 90 10ms 28 Oct 2024 415th anter69 🇭🇺 713 67 46ms 1 Oct 2024 416th SirBogman 🇺🇸 711 93 521ms 23 Jul 2025 417th rzv-me 711 95 4ms 5 Oct 2024 418th OllieBoyne 🇬🇧 711 112 23ms 17 Oct 2024 418th WillConker 711 112 11ms 22 Oct 2024 418th maxgodfrey2004 🇨🇦 711 112 14ms 4 Jan 2025 421st snyderek 🇺🇸 710 121 63ms 1 Oct 2024 422nd Natanaelel 🇸🇪 709 55 42ms 1 Mar 2025 423rd snoozingnewt 🇺🇸 709 95 75ms 16 days ago 424th Shanethegamer 🇺🇸 706 118 332ms 2 Oct 2024 425th SB-945 705 113 17ms 1 Oct 2024 425th Artemis21 🇬🇧 705 113 19ms 23 Jan 2025 425th fkantelberg 705 113 11ms 11 Jul 2025 428th DialFrost 🇸🇬 705 132 205ms 8 Apr 2025 429th MeWhenI 🇻🇦 704 115 435ms 5 Oct 2024 430th cbrt-x 703 157 197ms 1 Oct 2024 431st janlelis 702 68 37ms 1 Oct 2024 432nd emgordon154 702 76 6ms 7 Jun 2025 433rd Alex-x90 🇺🇸 702 100 2ms 1 Oct 2024 434th mousetail 🇳🇱 700 133 147ms 3 Oct 2024 435th LukeBridges 🇬🇧 699 92 10ms 3 Oct 2024 436th HumanoidCPU 699 114 61ms 7 Mar 2025 436th blaztoma 🇱🇹 699 114 18ms 25 Sep 2025 436th solisolu 699 114 18ms 23 days ago 439th BlankSpruce 698 123 385ms 1 Oct 2024 440th emgordon154 695 101 2ms 25 Nov 2024 441st emgordon154 695 134 203ms 25 Feb 2025 442nd tobeannouncd 695 159 162ms 13 Dec 2024 443rd Shanethegamer 🇺🇸 693 41 3ms 4 Oct 2024 444th Salutations45 692 93 12ms 17 Nov 2024 444th strattonwhisler 692 93 10ms 26 Mar 2025 446th jipsong 🇩🇪 692 115 17ms 12 May 2025 447th Alex-x90 🇺🇸 692 124 381ms 1 Oct 2024 447th Herbert00709 🇵🇱 692 124 56ms 14 Jun 2025 449th pardouin 🇫🇷 688 57 5ms 3 Oct 2024 450th NickTheEASDude 🇺🇸 688 115 3ms 17 Dec 2024 First Prev 376–450 of 812 Next Last