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 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 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers 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 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 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 226th Natanaelel 🇸🇪 809 59 36ms 7 Feb 2025 227th stefangimmillaro 807 126 2ms 3 Oct 2024 228th GolfingSuccess 🇬🇷 806 31 69ms 5 Oct 2024 229th kg583 🇺🇸 806 82 615ms 1 Oct 2024 229th sean-niemann 🇺🇸 806 82 450ms 23 Dec 2024 231st sean-niemann 🇺🇸 806 115 407ms 27 days ago 231st stefangimmillaro 806 115 470ms 16 days ago 233rd kg583 🇺🇸 806 124 20 Oct 2024 233rd AlephSquirrel 806 124 7ms 21 Oct 2024 235th emgordon154 805 205 7 Mar 2025 236th trinityy-7 804 80 10ms 23 Jul 2025 237th SirBogman 🇺🇸 804 99 18ms 8 Oct 2024 238th MeWhenI 🇻🇦 804 186 18ms 2 Oct 2024 239th GrayJoKing 🇦🇺 803 58 7ms 24 Oct 2024 240th DialFrost 🇸🇬 802 106 25ms 23 Mar 2025 241st ovs-code 🇩🇪 802 119 25ms 1 Oct 2024 242nd ovs-code 🇩🇪 801 75 1,110ms 1 Oct 2024 243rd MeWhenI 🇻🇦 801 127 2ms 5 Oct 2024 244th stefangimmillaro 801 134 56ms 3 Oct 2024 245th antimon2 🇯🇵 800 70 9 Oct 2024 246th xsot 🇸🇬 800 125 7ms 20 Oct 2024 247th error256 799 116 27 days ago 248th stefangimmillaro 798 89 421ms 4 Oct 2024 249th duckyluuk 🇳🇱 797 83 403ms 3 Oct 2024 249th emgordon154 797 83 563ms 18 Nov 2024 251st MeWhenI 🇻🇦 797 88 2ms 2 Oct 2024 252nd Shanethegamer 🇺🇸 797 138 171ms 3 Oct 2024 253rd anter69 🇭🇺 796 100 17ms 1 Oct 2024 253rd bzijlema 🇳🇱 796 100 10 Oct 2024 253rd bricknellj 796 100 17ms 4 Mar 2025 256th tayloia 🇬🇧 794 81 10ms 3 Oct 2024 256th targrik 794 81 10ms 8 Feb 2025 258th stefangimmillaro 794 87 125ms 4 Oct 2024 259th duckyluuk 🇳🇱 794 99 11ms 17 Dec 2024 260th Shanethegamer 🇺🇸 794 102 384ms 4 Oct 2024 261st Shanethegamer 🇺🇸 794 128 2ms 3 Oct 2024 262nd DialFrost 🇸🇬 793 85 1 Oct 2024 262nd xsot 🇸🇬 793 85 7 Oct 2024 264th Shanethegamer 🇺🇸 793 208 14 Apr 2025 264th DialFrost 🇸🇬 793 208 18 Apr 2025 266th edsrzf 🇳🇿 792 117 522ms 27 days ago 267th edsrzf 🇳🇿 791 76 1,165ms 1 Oct 2024 268th DialFrost 🇸🇬 791 84 26 Oct 2024 269th sean-niemann 🇺🇸 791 92 112ms 21 days ago 270th jared-hughes 791 203 101ms 20 Dec 2024 271st saito-ta 🇯🇵 790 74 8ms 1 Oct 2024 272nd pardouin 🇫🇷 789 81 29 Jan 2025 272nd ovs-code 🇩🇪 789 81 17 Apr 2025 274th MeWhenI 🇻🇦 789 90 389ms 2 Oct 2024 275th Natanaelel 🇸🇪 788 48 1 Oct 2024 276th lifthrasiir 🇰🇷 788 101 20ms 21 Nov 2024 276th btjones0 788 101 18ms 2 Dec 2024 276th CornerMercury 🇬🇧 788 101 21ms 27 days ago 279th MeWhenI 🇻🇦 788 109 426ms 2 Oct 2024 280th kg583 🇺🇸 788 160 47ms 13 Feb 2025 280th CLOStrophobic 🇮🇹 788 160 45ms 27 Feb 2025 282nd ovs-code 🇩🇪 787 84 415ms 3 Oct 2024 282nd Shanethegamer 🇺🇸 787 84 410ms 3 Oct 2024 284th emgordon154 786 151 273ms 17 Jan 2025 285th Shanethegamer 🇺🇸 785 88 124ms 4 Oct 2024 286th KingSkyrock 🇺🇸 784 82 10ms 14 Oct 2024 287th stefangimmillaro 782 61 36ms 1 Oct 2024 288th annaproxy 781 102 19ms 1 Oct 2024 289th edsrzf 🇳🇿 781 119 177ms 23 Jul 2025 290th Shanethegamer 🇺🇸 781 152 329ms 3 Oct 2024 290th targrik 781 152 279ms 7 Jul 2025 292nd Shanethegamer 🇺🇸 780 91 332ms 3 Oct 2024 293rd MeWhenI 🇻🇦 780 122 5 Oct 2024 294th GrayJoKing 🇦🇺 779 82 1 Oct 2024 295th namelessiw 779 119 417ms 12 days ago 296th SirBogman 🇺🇸 778 50 8 Jul 2025 297th SirBogman 🇺🇸 778 138 43ms 11 Jul 2025 298th sean-niemann 🇺🇸 776 107 386ms 3 Oct 2024 299th m-tkach 🇺🇦 776 131 3ms 4 Oct 2024 300th uttumuttu 🇫🇮 775 83 10ms 1 Oct 2024 First Prev 226–300 of 783 Next Last