Card Number Validation in all languages in chars. 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 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 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 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 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 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 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 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 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 Chars Time Submitted 226th saito-ta 🇯🇵 807 85 1ms 1 Oct 2024 227th stefangimmillaro 807 126 2ms 3 Oct 2024 228th GolfingSuccess 🇬🇷 806 31 68ms 5 Oct 2024 229th emgordon154 805 72 120ms 2 Oct 2024 230th trinityy-7 805 80 10ms 23 Jul 2025 231st albanian-laundromat 805 148 255ms 6 days ago 232nd error256 804 116 421ms 24 Sep 2025 233rd GrayJoKing 🇦🇺 803 58 6ms 24 Oct 2024 234th xsot 🇸🇬 803 125 7ms 20 Oct 2024 235th DialFrost 🇸🇬 802 106 25ms 23 Mar 2025 236th ovs-code 🇩🇪 802 119 14ms 1 Oct 2024 237th ovs-code 🇩🇪 801 75 1,104ms 1 Oct 2024 238th MeWhenI 🇻🇦 801 127 2ms 5 Oct 2024 238th albanian-laundromat 801 127 3ms 3 Nov 2025 240th Shanethegamer 🇺🇸 801 208 1,396ms 14 Apr 2025 240th DialFrost 🇸🇬 801 208 442ms 18 Apr 2025 242nd stefangimmillaro 800 89 369ms 4 Oct 2024 243rd Shanethegamer 🇺🇸 800 138 142ms 3 Oct 2024 244th sean-niemann 🇺🇸 799 92 112ms 1 Oct 2025 245th snoozingnewt 🇨🇦 798 72 334ms 3 days ago 246th albanian-laundromat 797 74 765ms 3 Nov 2025 247th Babafaba 797 81 19ms 11 Nov 2025 248th edsrzf 🇳🇿 797 117 437ms 24 Sep 2025 249th 2bular 796 49 31ms 8 Nov 2025 250th tayloia 🇬🇧 795 81 9ms 3 Oct 2024 250th targrik 795 81 9ms 8 Feb 2025 252nd DialFrost 🇸🇬 795 85 6ms 1 Oct 2024 252nd xsot 🇸🇬 795 85 5ms 7 Oct 2024 254th stefangimmillaro 794 87 100ms 4 Oct 2024 255th Shanethegamer 🇺🇸 794 102 384ms 4 Oct 2024 256th Shanethegamer 🇺🇸 794 128 2ms 3 Oct 2024 257th albanian-laundromat 793 120 42ms 3 Nov 2025 258th edsrzf 🇳🇿 791 76 1,005ms 1 Oct 2024 259th DialFrost 🇸🇬 791 84 3,204ms 26 Oct 2024 260th MeWhenI 🇻🇦 791 90 418ms 2 Oct 2024 261st jared-hughes 791 203 101ms 20 Dec 2024 262nd saito-ta 🇯🇵 790 74 7ms 1 Oct 2024 263rd MeWhenI 🇻🇦 789 109 394ms 2 Oct 2024 264th emgordon154 789 151 262ms 17 Jan 2025 265th Natanaelel 🇸🇪 788 48 212ms 1 Oct 2024 266th SB-945 788 82 16ms 1 Oct 2024 266th HumanoidCPU 788 82 61ms 7 Mar 2025 266th fkantelberg 788 82 11ms 11 Jul 2025 266th BrunoVisnadi 🇧🇷 788 82 10ms 21 Sep 2025 270th KingSkyrock 🇺🇸 785 82 9ms 14 Oct 2024 271st Shanethegamer 🇺🇸 785 88 99ms 4 Oct 2024 272nd kg583 🇺🇸 785 94 4ms 26 days ago 273rd SirBogman 🇺🇸 785 138 39ms 11 Jul 2025 274th edsrzf 🇳🇿 784 119 389ms 23 Jul 2025 274th namelessiw 784 119 440ms 9 Oct 2025 276th Shanethegamer 🇺🇸 784 152 264ms 3 Oct 2024 276th targrik 784 152 264ms 7 Jul 2025 278th stefangimmillaro 783 61 33ms 1 Oct 2024 279th Shanethegamer 🇺🇸 782 91 358ms 3 Oct 2024 280th SirBogman 🇺🇸 780 50 34ms 8 Jul 2025 281st MeWhenI 🇻🇦 780 122 39ms 5 Oct 2024 282nd MeWhenI 🇻🇦 779 88 1ms 2 Oct 2024 283rd sean-niemann 🇺🇸 779 107 332ms 3 Oct 2024 284th Bmrl7 778 83 10ms 3 Oct 2024 285th bizy-coder 777 74 461ms 1 Oct 2024 285th m-tkach 🇺🇦 777 74 474ms 3 Oct 2024 287th adriweb 🇫🇷 777 102 2ms 5 Oct 2024 288th Shanethegamer 🇺🇸 777 120 454ms 24 Sep 2025 289th emgordon154 777 166 1,626ms 2 Oct 2024 290th DialFrost 🇸🇬 776 76 745ms 30 Aug 2025 291st m-tkach 🇺🇦 776 131 3ms 4 Oct 2024 292nd uttumuttu 🇫🇮 775 83 9ms 1 Oct 2024 292nd KatieLG 🇬🇧 775 83 9ms 1 Oct 2024 292nd Larento 775 83 9ms 4 Nov 2024 292nd Andrey-Plotnikov 775 83 9ms 13 Jan 2025 292nd nathanadams 🇳🇿 775 83 9ms 6 Oct 2025 297th duckyluuk 🇳🇱 775 97 9ms 14 days ago 298th Natanaelel 🇸🇪 772 143 148ms 20 Apr 2025 299th sean-niemann 🇺🇸 771 105 440ms 1 Oct 2024 300th DialFrost 🇸🇬 771 121 349ms 24 Sep 2025 First Prev 226–300 of 840 Next Last