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 320th btjones0 790 101 17ms 2 Dec 2024 322nd pardouin 🇫🇷 789 81 139ms 29 Jan 2025 322nd ovs-code 🇩🇪 789 81 144ms 17 Apr 2025 324th Shanethegamer 🇺🇸 789 88 123ms 4 Oct 2024 325th edsrzf 🇳🇿 789 119 155ms 23 Jul 2025 325th jusaka 789 119 136ms 3 days ago 327th MeWhenI 🇻🇦 789 122 39ms 5 Oct 2024 328th emgordon154 789 151 288ms 17 Jan 2025 329th emgordon154 787 164 1,815ms 22 Dec 2025 330th KingSkyrock 🇺🇸 786 82 12ms 14 Oct 2024 331st retrohun 786 90 2ms 3 days ago 332nd namelessiw 786 119 503ms 9 Oct 2025 333rd stefangimmillaro 785 61 35ms 1 Oct 2024 334th SirBogman 🇺🇸 785 138 39ms 11 Jul 2025 335th Shanethegamer 🇺🇸 784 91 441ms 3 Oct 2024 336th Shanethegamer 🇺🇸 784 152 278ms 3 Oct 2024 336th targrik 784 152 304ms 7 Jul 2025 338th annaproxy 782 102 17ms 1 Oct 2024 338th snoozingnewt 🇨🇦 782 102 9ms 6 Dec 2025 338th Flekay 🇩🇪 782 102 17ms 19 Feb 2026 338th dokutan 782 102 16ms 26 days ago 338th aksyristos 782 102 18ms 6 days ago 338th jusaka 782 102 17ms 5 days ago 344th SirBogman 🇺🇸 780 50 32ms 8 Jul 2025 345th duckyluuk 🇳🇱 780 97 10ms 25 Nov 2025 346th albanian-laundromat 🇺🇸 779 74 1,086ms 3 Nov 2025 347th GrayJoKing 🇦🇺 779 82 133ms 1 Oct 2024 348th sean-niemann 🇺🇸 779 107 375ms 3 Oct 2024 349th Shanethegamer 🇺🇸 779 120 364ms 24 Sep 2025 350th m-tkach 🇺🇦 779 131 2ms 4 Oct 2024 351st uttumuttu 🇫🇮 777 83 10ms 1 Oct 2024 351st KatieLG 🇬🇧 777 83 11ms 1 Oct 2024 351st Larento 777 83 11ms 4 Nov 2024 351st Andrey-Plotnikov 777 83 10ms 13 Jan 2025 351st nathanadams 🇳🇿 777 83 11ms 6 Oct 2025 356th adriweb 🇫🇷 777 102 1ms 5 Oct 2024 357th sean-niemann 🇺🇸 777 105 461ms 1 Oct 2024 358th AlephSquirrel 776 124 7ms 21 Oct 2024 359th Natanaelel 🇸🇪 775 143 145ms 20 Apr 2025 360th sisyphus-ppcg 🇦🇺 773 62 38ms 3 Oct 2024 361st DialFrost 🇸🇬 773 121 369ms 24 Sep 2025 362nd DialFrost 🇸🇬 771 90 2ms 18 Nov 2025 363rd emgordon154 770 83 135ms 18 Nov 2024 364th targrik 770 88 9ms 7 Feb 2025 365th Waffle3z 770 103 2ms 2 Oct 2024 366th xsot 🇸🇬 770 125 7ms 20 Oct 2024 367th retrohun 769 63 20ms 2 Oct 2024 368th luuumine 🇫🇷 769 92 1ms 5 Dec 2025 368th bzd7 769 92 2ms 7 Dec 2025 370th ovs-code 🇩🇪 769 122 148ms 25 Apr 2025 371st lifthrasiir 🇰🇷 767 37 2ms 27 Nov 2024 372nd didion0 🇺🇸 767 84 11ms 10 Jan 2025 373rd jatloe 767 104 10ms 1 Oct 2024 374th MeWhenI 🇻🇦 765 109 372ms 2 Oct 2024 375th albanian-laundromat 🇺🇸 763 118 90ms 13 Nov 2025 376th Shanethegamer 🇺🇸 763 124 7ms 4 Oct 2024 377th GolfingSuccess 🇬🇷 762 70 6ms 6 Jun 2025 378th MeWhenI 🇻🇦 761 89 5ms 2 Oct 2024 379th sean-niemann 🇺🇸 761 93 1ms 24 Oct 2024 380th emgordon154 760 63 35ms 18 Nov 2024 380th SirBogman 🇺🇸 760 63 35ms 19 Jul 2025 382nd fourth-bit 760 105 17ms 1 Oct 2024 382nd jared-hughes 760 105 16ms 3 Oct 2024 382nd mattyhempstead 760 105 26ms 7 Oct 2024 385th DialFrost 🇸🇬 759 76 1,034ms 30 Aug 2025 386th weliveinhell 🇭🇹 758 85 10ms 1 Oct 2024 386th SteRoy 758 85 10ms 13 May 2025 388th CLOStrophobic 🇮🇹 758 160 40ms 27 Feb 2025 389th albanian-laundromat 🇺🇸 758 161 27ms 10 Mar 2026 390th MeWhenI 🇻🇦 754 88 440ms 2 Oct 2024 390th albanian-laundromat 🇺🇸 754 88 462ms 3 Nov 2025 392nd 0xjac 🇨🇭 754 158 266ms 17 Jun 2025 393rd MeWhenI 🇻🇦 754 162 26ms 2 Oct 2024 394th GrayJoKing 🇦🇺 753 90 5ms 1 Oct 2024 395th stefangimmillaro 753 94 1ms 30 Oct 2024 395th emgordon154 753 94 2ms 7 Feb 2026 397th davecame 752 106 17ms 1 Oct 2024 397th starfihs 752 106 10ms 2 Oct 2024 397th rschwa6308 🇺🇸 752 106 16ms 28 Oct 2024 397th snydej 752 106 17ms 21 Nov 2024 First Prev 321–400 of 934 Next Last