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 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 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 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 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 226th GolfingSuccess 🇬🇷 813 98 16ms 5 Oct 2024 226th firegene 🇮🇪 813 98 16ms 21 Oct 2024 226th albanian-laundromat 813 98 16ms 20 days ago 229th emgordon154 813 205 436ms 7 Mar 2025 230th Shanethegamer 🇺🇸 812 70 986ms 9 Apr 2025 231st sean-niemann 🇺🇸 811 115 335ms 24 Sep 2025 231st stefangimmillaro 811 115 329ms 6 Oct 2025 233rd ovs-code 🇩🇪 810 106 386ms 1 Oct 2024 233rd inventshah 810 106 452ms 1 Oct 2024 235th kg583 🇺🇸 810 124 7ms 20 Oct 2024 235th AlephSquirrel 810 124 7ms 21 Oct 2024 237th Natanaelel 🇸🇪 809 59 36ms 7 Feb 2025 238th stefangimmillaro 808 134 56ms 3 Oct 2024 239th kg583 🇺🇸 807 82 615ms 1 Oct 2024 239th sean-niemann 🇺🇸 807 82 450ms 23 Dec 2024 241st stefangimmillaro 807 126 2ms 3 Oct 2024 242nd GolfingSuccess 🇬🇷 806 31 69ms 5 Oct 2024 243rd trinityy-7 804 80 10ms 23 Jul 2025 244th SirBogman 🇺🇸 804 99 16ms 8 Oct 2024 245th error256 804 116 336ms 24 Sep 2025 246th GrayJoKing 🇦🇺 803 58 7ms 24 Oct 2024 247th xsot 🇸🇬 803 125 7ms 20 Oct 2024 248th antimon2 🇯🇵 802 70 517ms 9 Oct 2024 249th DialFrost 🇸🇬 802 106 25ms 23 Mar 2025 250th ovs-code 🇩🇪 802 119 25ms 1 Oct 2024 251st ovs-code 🇩🇪 801 75 1,110ms 1 Oct 2024 252nd MeWhenI 🇻🇦 801 127 2ms 5 Oct 2024 252nd albanian-laundromat 801 127 3ms 20 days ago 254th Shanethegamer 🇺🇸 801 208 1,420ms 14 Apr 2025 254th DialFrost 🇸🇬 801 208 482ms 18 Apr 2025 256th stefangimmillaro 800 89 381ms 4 Oct 2024 257th Shanethegamer 🇺🇸 800 138 171ms 3 Oct 2024 258th MeWhenI 🇻🇦 799 88 2ms 2 Oct 2024 259th duckyluuk 🇳🇱 798 83 403ms 3 Oct 2024 259th emgordon154 798 83 563ms 18 Nov 2024 261st edsrzf 🇳🇿 797 117 325ms 24 Sep 2025 262nd 2bular 796 49 31ms 15 days ago 263rd anter69 🇭🇺 796 100 16ms 1 Oct 2024 263rd bzijlema 🇳🇱 796 100 16ms 10 Oct 2024 263rd bricknellj 796 100 16ms 4 Mar 2025 266th DialFrost 🇸🇬 795 85 6ms 1 Oct 2024 266th xsot 🇸🇬 795 85 4ms 7 Oct 2024 268th sean-niemann 🇺🇸 795 92 112ms 1 Oct 2025 269th albanian-laundromat 794 74 784ms 20 days ago 270th tayloia 🇬🇧 794 81 11ms 3 Oct 2024 270th targrik 794 81 10ms 8 Feb 2025 272nd stefangimmillaro 794 87 105ms 4 Oct 2024 273rd duckyluuk 🇳🇱 794 99 11ms 17 Dec 2024 274th Shanethegamer 🇺🇸 794 102 384ms 4 Oct 2024 275th Shanethegamer 🇺🇸 794 128 2ms 3 Oct 2024 276th kg583 🇺🇸 794 160 39ms 13 Feb 2025 276th CLOStrophobic 🇮🇹 794 160 41ms 27 Feb 2025 278th albanian-laundromat 793 120 42ms 20 days ago 279th edsrzf 🇳🇿 791 76 1,165ms 1 Oct 2024 280th DialFrost 🇸🇬 791 84 2,866ms 26 Oct 2024 281st MeWhenI 🇻🇦 791 90 491ms 2 Oct 2024 282nd jared-hughes 791 203 101ms 20 Dec 2024 283rd saito-ta 🇯🇵 790 74 8ms 1 Oct 2024 284th pardouin 🇫🇷 789 81 132ms 29 Jan 2025 284th ovs-code 🇩🇪 789 81 133ms 17 Apr 2025 286th Natanaelel 🇸🇪 788 48 119ms 1 Oct 2024 287th ovs-code 🇩🇪 788 84 415ms 3 Oct 2024 287th Shanethegamer 🇺🇸 788 84 410ms 3 Oct 2024 289th lifthrasiir 🇰🇷 788 101 17ms 21 Nov 2024 289th btjones0 788 101 18ms 2 Dec 2024 291st MeWhenI 🇻🇦 788 109 382ms 2 Oct 2024 292nd emgordon154 788 151 255ms 17 Jan 2025 293rd KingSkyrock 🇺🇸 785 82 9ms 14 Oct 2024 294th Shanethegamer 🇺🇸 785 88 104ms 4 Oct 2024 295th kg583 🇺🇸 785 94 4ms 10 days ago 296th SirBogman 🇺🇸 785 138 43ms 11 Jul 2025 297th namelessiw 784 119 346ms 9 Oct 2025 298th stefangimmillaro 783 61 36ms 1 Oct 2024 299th Shanethegamer 🇺🇸 783 152 260ms 3 Oct 2024 299th targrik 783 152 262ms 7 Jul 2025 First Prev 226–300 of 825 Next Last