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 321st adriweb 🇫🇷 776 102 1ms 5 Oct 2024 322nd m-tkach 🇺🇦 776 131 3ms 4 Oct 2024 323rd uttumuttu 🇫🇮 775 83 10ms 1 Oct 2024 323rd KatieLG 🇬🇧 775 83 12ms 1 Oct 2024 323rd Larento 775 83 10ms 4 Nov 2024 323rd Andrey-Plotnikov 775 83 11ms 13 Jan 2025 323rd nathanadams 🇳🇿 775 83 10ms 6 Oct 2025 328th duckyluuk 🇳🇱 775 97 9ms 25 Nov 2025 329th Natanaelel 🇸🇪 775 143 145ms 20 Apr 2025 330th sisyphus-ppcg 🇦🇺 771 62 36ms 3 Oct 2024 331st sean-niemann 🇺🇸 771 105 440ms 1 Oct 2024 332nd DialFrost 🇸🇬 771 121 349ms 24 Sep 2025 333rd emgordon154 770 83 127ms 18 Nov 2024 334th retrohun 769 63 20ms 2 Oct 2024 335th edsrzf 🇳🇿 769 76 1,005ms 1 Oct 2024 336th DialFrost 🇸🇬 769 90 2ms 18 Nov 2025 337th Waffle3z 769 103 2ms 2 Oct 2024 338th targrik 768 88 8ms 7 Feb 2025 339th lifthrasiir 🇰🇷 767 37 2ms 27 Nov 2024 340th didion0 🇺🇸 766 84 14ms 10 Jan 2025 341st jatloe 766 104 9ms 1 Oct 2024 342nd DialFrost 🇸🇬 766 131 7ms 11 Dec 2024 343rd luuumine 🇫🇷 765 92 1ms 5 Dec 2025 343rd bzd7 765 92 2ms 7 Dec 2025 345th MeWhenI 🇻🇦 765 109 334ms 2 Oct 2024 345th edsrzf 🇳🇿 765 109 365ms 23 Jul 2025 347th ovs-code 🇩🇪 764 122 159ms 25 Apr 2025 348th albanian-laundromat 763 118 91ms 13 Nov 2025 349th Shanethegamer 🇺🇸 763 124 6ms 4 Oct 2024 350th GolfingSuccess 🇬🇷 762 70 6ms 6 Jun 2025 351st Shanethegamer 🇺🇸 761 132 7ms 2 Oct 2024 352nd emgordon154 759 63 34ms 18 Nov 2024 352nd SirBogman 🇺🇸 759 63 38ms 19 Jul 2025 354th MeWhenI 🇻🇦 759 89 5ms 2 Oct 2024 355th fourth-bit 759 105 19ms 1 Oct 2024 355th jared-hughes 759 105 15ms 3 Oct 2024 355th mattyhempstead 759 105 27ms 7 Oct 2024 358th weliveinhell 🇭🇹 757 85 9ms 1 Oct 2024 358th SteRoy 757 85 10ms 13 May 2025 360th sean-niemann 🇺🇸 757 93 3ms 24 Oct 2024 361st 0xjac 🇨🇭 754 158 256ms 17 Jun 2025 362nd MeWhenI 🇻🇦 753 88 425ms 2 Oct 2024 362nd albanian-laundromat 753 88 475ms 3 Nov 2025 364th davecame 752 106 15ms 1 Oct 2024 364th starfihs 752 106 10ms 2 Oct 2024 364th rschwa6308 🇺🇸 752 106 16ms 28 Oct 2024 364th snydej 752 106 15ms 21 Nov 2024 364th andrewjc2000 752 106 15ms 17 Jul 2025 364th qpwoeirut 752 106 9ms 19 Aug 2025 370th GrayJoKing 🇦🇺 751 90 5ms 1 Oct 2024 371st stackofbears 750 52 35ms 14 Mar 2025 372nd stefangimmillaro 749 94 1ms 30 Oct 2024 373rd MeWhenI 🇻🇦 749 162 26ms 2 Oct 2024 374th Maznek 748 86 12ms 4 Oct 2024 375th MeWhenI 🇻🇦 748 89 3,232ms 24 Oct 2024 376th rak1507 🇬🇧 747 38 2ms 30 Dec 2024 377th Shanethegamer 🇺🇸 747 64 37ms 3 Oct 2024 377th Andriamanitra 🇫🇮 747 64 36ms 5 Oct 2024 379th MeWhenI 🇻🇦 747 106 1ms 2 Oct 2024 380th commandblockguy 🇺🇸 745 107 15ms 7 Oct 2024 380th zbreit 🇺🇸 745 107 16ms 29 Oct 2024 380th StardustGogeta 745 107 16ms 30 Oct 2024 380th ZakkkkAttackkkk 🇵🇭 745 107 16ms 8 Feb 2025 380th InigoK 🇺🇸 745 107 16ms 22 Sep 2025 385th sean-niemann 🇺🇸 744 116 412ms 24 Oct 2024 385th luuumine 🇫🇷 744 116 430ms 15 Dec 2025 387th Shanethegamer 🇺🇸 744 121 114ms 3 Oct 2024 388th sean-niemann 🇺🇸 743 93 120ms 24 Oct 2024 389th Natanaelel 🇸🇪 742 53 3ms 2 days ago 390th SirBogman 🇺🇸 741 63 259ms 23 Jul 2025 391st GrayJoKing 🇦🇺 740 79 1,204ms 1 Oct 2024 392nd KrausRaus 🇺🇸 740 87 13ms 1 Oct 2024 392nd GeorgeStechman 🇬🇧 740 87 11ms 24 Oct 2024 392nd coreynash 740 87 10ms 13 Feb 2025 395th Shanethegamer 🇺🇸 740 90 3,539ms 28 Oct 2024 395th ScottHamper 740 90 2,700ms 11 Dec 2025 397th Shanethegamer 🇺🇸 740 156 30ms 2 Oct 2024 398th DialFrost 🇸🇬 739 76 825ms 9 Oct 2024 399th Shanethegamer 🇺🇸 739 172 39ms 2 Oct 2024 400th neihousaigaai 738 108 16ms 4 Oct 2024 First Prev 321–400 of 862 Next Last