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 DialFrost 🇸🇬 776 76 745ms 30 Aug 2025 322nd adriweb 🇫🇷 776 102 1ms 5 Oct 2024 323rd m-tkach 🇺🇦 776 131 3ms 4 Oct 2024 324th uttumuttu 🇫🇮 775 83 9ms 1 Oct 2024 324th KatieLG 🇬🇧 775 83 12ms 1 Oct 2024 324th Larento 775 83 10ms 4 Nov 2024 324th Andrey-Plotnikov 775 83 11ms 13 Jan 2025 324th nathanadams 🇳🇿 775 83 10ms 6 Oct 2025 329th duckyluuk 🇳🇱 775 97 10ms 25 Nov 2025 330th Natanaelel 🇸🇪 775 143 145ms 20 Apr 2025 331st DialFrost 🇸🇬 772 121 349ms 24 Sep 2025 332nd sisyphus-ppcg 🇦🇺 771 62 53ms 3 Oct 2024 333rd sean-niemann 🇺🇸 771 105 440ms 1 Oct 2024 334th emgordon154 770 83 139ms 18 Nov 2024 335th retrohun 769 63 20ms 2 Oct 2024 336th edsrzf 🇳🇿 769 76 1,005ms 1 Oct 2024 337th DialFrost 🇸🇬 769 90 2ms 18 Nov 2025 338th Waffle3z 769 103 2ms 2 Oct 2024 339th targrik 768 88 8ms 7 Feb 2025 340th lifthrasiir 🇰🇷 767 37 2ms 27 Nov 2024 341st didion0 🇺🇸 766 84 11ms 10 Jan 2025 342nd luuumine 🇫🇷 766 92 1ms 5 Dec 2025 342nd bzd7 766 92 2ms 7 Dec 2025 344th jatloe 766 104 9ms 1 Oct 2024 345th DialFrost 🇸🇬 766 131 7ms 11 Dec 2024 346th MeWhenI 🇻🇦 765 109 334ms 2 Oct 2024 346th edsrzf 🇳🇿 765 109 365ms 23 Jul 2025 348th ovs-code 🇩🇪 764 122 159ms 25 Apr 2025 349th albanian-laundromat 763 118 84ms 13 Nov 2025 350th Shanethegamer 🇺🇸 763 124 6ms 4 Oct 2024 351st GolfingSuccess 🇬🇷 762 70 6ms 6 Jun 2025 352nd Shanethegamer 🇺🇸 761 132 7ms 2 Oct 2024 353rd emgordon154 759 63 35ms 18 Nov 2024 353rd SirBogman 🇺🇸 759 63 33ms 19 Jul 2025 355th MeWhenI 🇻🇦 759 89 6ms 2 Oct 2024 356th fourth-bit 759 105 19ms 1 Oct 2024 356th jared-hughes 759 105 15ms 3 Oct 2024 356th mattyhempstead 759 105 27ms 7 Oct 2024 359th weliveinhell 🇭🇹 757 85 9ms 1 Oct 2024 359th SteRoy 757 85 10ms 13 May 2025 361st sean-niemann 🇺🇸 757 93 3ms 24 Oct 2024 362nd 0xjac 🇨🇭 754 158 252ms 17 Jun 2025 363rd MeWhenI 🇻🇦 753 88 425ms 2 Oct 2024 363rd albanian-laundromat 753 88 475ms 3 Nov 2025 365th davecame 752 106 15ms 1 Oct 2024 365th starfihs 752 106 10ms 2 Oct 2024 365th rschwa6308 🇺🇸 752 106 16ms 28 Oct 2024 365th snydej 752 106 15ms 21 Nov 2024 365th andrewjc2000 752 106 15ms 17 Jul 2025 365th qpwoeirut 752 106 9ms 19 Aug 2025 371st GrayJoKing 🇦🇺 751 90 5ms 1 Oct 2024 372nd stackofbears 750 52 35ms 14 Mar 2025 373rd MeWhenI 🇻🇦 750 89 2,360ms 24 Oct 2024 374th stefangimmillaro 749 94 1ms 30 Oct 2024 375th MeWhenI 🇻🇦 749 162 26ms 2 Oct 2024 376th Maznek 748 86 10ms 4 Oct 2024 377th rak1507 🇬🇧 747 38 2ms 30 Dec 2024 378th Shanethegamer 🇺🇸 747 64 35ms 3 Oct 2024 378th Andriamanitra 🇫🇮 747 64 40ms 5 Oct 2024 380th MeWhenI 🇻🇦 747 106 1ms 2 Oct 2024 381st sean-niemann 🇺🇸 746 116 411ms 24 Oct 2024 381st luuumine 🇫🇷 746 116 430ms 15 Dec 2025 383rd commandblockguy 🇺🇸 745 107 15ms 7 Oct 2024 383rd zbreit 🇺🇸 745 107 16ms 29 Oct 2024 383rd StardustGogeta 745 107 16ms 30 Oct 2024 383rd ZakkkkAttackkkk 🇵🇭 745 107 16ms 8 Feb 2025 383rd InigoK 🇺🇸 745 107 16ms 22 Sep 2025 388th Shanethegamer 🇺🇸 744 121 98ms 3 Oct 2024 389th sean-niemann 🇺🇸 743 93 120ms 24 Oct 2024 390th Natanaelel 🇸🇪 742 53 3ms 12 days ago 391st SirBogman 🇺🇸 741 63 283ms 23 Jul 2025 392nd Shanethegamer 🇺🇸 741 90 2,343ms 28 Oct 2024 392nd ScottHamper 741 90 2,700ms 11 Dec 2025 394th GrayJoKing 🇦🇺 740 79 1,204ms 1 Oct 2024 395th KrausRaus 🇺🇸 740 87 9ms 1 Oct 2024 395th GeorgeStechman 🇬🇧 740 87 9ms 24 Oct 2024 395th coreynash 740 87 9ms 13 Feb 2025 398th Shanethegamer 🇺🇸 740 156 30ms 2 Oct 2024 399th DialFrost 🇸🇬 739 76 825ms 9 Oct 2024 400th Shanethegamer 🇺🇸 739 172 39ms 2 Oct 2024 First Prev 321–400 of 868 Next Last