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 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 Multitap Input 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 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 Multitap Input 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 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 321st albanian-laundromat 763 118 84ms 13 Nov 2025 322nd GolfingSuccess 🇬🇷 762 70 6ms 6 Jun 2025 323rd inventshah 760 85 18ms 4 Oct 2024 323rd Artemis21 🇬🇧 760 85 10ms 10 Jan 2025 323rd keelimeguy 🇺🇸 760 85 15ms 14 Jun 2025 326th emgordon154 759 63 35ms 18 Nov 2024 326th SirBogman 🇺🇸 759 63 33ms 19 Jul 2025 328th MeWhenI 🇻🇦 759 89 5ms 2 Oct 2024 329th weliveinhell 🇭🇹 757 85 9ms 1 Oct 2024 329th SteRoy 757 85 10ms 13 May 2025 331st AlephSquirrel 756 76 467ms 1 Oct 2024 332nd DialFrost 🇸🇬 754 131 7ms 11 Dec 2024 333rd 0xjac 🇨🇭 754 158 252ms 17 Jun 2025 334th ryyyn 🇺🇸 751 86 19ms 11 days ago 335th GrayJoKing 🇦🇺 751 90 5ms 1 Oct 2024 336th stackofbears 750 52 35ms 14 Mar 2025 337th MeWhenI 🇻🇦 750 89 3,150ms 24 Oct 2024 338th DialFrost 🇸🇬 749 75 825ms 10 Oct 2024 339th MeWhenI 🇻🇦 749 162 26ms 2 Oct 2024 340th Maznek 748 86 10ms 4 Oct 2024 341st Shanethegamer 🇺🇸 748 132 7ms 2 Oct 2024 342nd rak1507 🇬🇧 747 38 2ms 30 Dec 2024 343rd Shanethegamer 🇺🇸 747 64 35ms 3 Oct 2024 343rd Andriamanitra 🇫🇮 747 64 40ms 5 Oct 2024 345th Babafaba 747 77 390ms 11 Nov 2025 346th luuumine 🇫🇷 747 92 1ms 5 Dec 2025 346th bzd7 747 92 2ms 7 Dec 2025 348th MeWhenI 🇻🇦 747 106 1ms 2 Oct 2024 349th sean-niemann 🇺🇸 746 116 411ms 24 Oct 2024 349th luuumine 🇫🇷 746 116 430ms 15 Dec 2025 351st Shanethegamer 🇺🇸 744 121 98ms 3 Oct 2024 352nd sean-niemann 🇺🇸 743 93 120ms 24 Oct 2024 353rd Natanaelel 🇸🇪 742 53 3ms 23 days ago 354th SirBogman 🇺🇸 741 63 283ms 23 Jul 2025 355th Shanethegamer 🇺🇸 741 90 2,981ms 28 Oct 2024 355th ScottHamper 741 90 3,373ms 11 Dec 2025 357th KrausRaus 🇺🇸 740 87 9ms 1 Oct 2024 357th GeorgeStechman 🇬🇧 740 87 9ms 24 Oct 2024 357th coreynash 740 87 9ms 13 Feb 2025 357th kirjavascript 740 87 11ms 22 Jul 2025 361st sean-niemann 🇺🇸 739 93 3ms 24 Oct 2024 362nd HumanoidCPU 737 78 454ms 7 Mar 2025 363rd MeWhenI 🇻🇦 736 111 116ms 2 Oct 2024 364th MeWhenI 🇻🇦 735 34 58ms 2 Oct 2024 364th emgordon154 735 34 69ms 11 Sep 2025 364th plcc0 735 34 68ms 2 days ago 367th stefangimmillaro 735 92 8ms 2 Oct 2024 367th Shanethegamer 🇺🇸 735 92 5ms 3 Oct 2024 369th Shanethegamer 🇺🇸 735 100 122ms 24 May 2025 370th Kacarott 🇦🇺 734 73 1,111ms 1 Oct 2024 370th chunes3 🇺🇸 734 73 1,046ms 2 Oct 2024 372nd wh3n3v3r 🇨🇿 734 88 10ms 18 Nov 2024 373rd Shanethegamer 🇺🇸 733 116 1,026ms 1 Oct 2024 374th stefangimmillaro 731 94 1ms 30 Oct 2024 375th Shanethegamer 🇺🇸 731 101 4ms 2 Oct 2024 376th error256 731 109 10ms 24 Jul 2025 377th stefangimmillaro 731 114 326ms 13 Oct 2024 378th edsrzf 🇳🇿 730 52 118ms 18 days ago 379th anter69 🇭🇺 729 78 1,271ms 1 Oct 2024 380th Shanethegamer 🇺🇸 729 112 99ms 3 Oct 2024 381st Shanethegamer 🇺🇸 729 156 30ms 2 Oct 2024 382nd error256 728 98 416ms 16 days ago 383rd CLOStrophobic 🇮🇹 728 160 40ms 27 Feb 2025 384th zacjl 724 110 7ms 10 Oct 2024 385th Shanethegamer 🇺🇸 724 126 1,391ms 2 Oct 2024 386th dtbao20 🇻🇳 723 89 9ms 1 Oct 2024 386th madeforlosers 723 89 9ms 17 Oct 2024 386th junkondo-jp 723 89 10ms 14 Dec 2024 386th alexsave 723 89 10ms 14 days ago 390th annaproxy 723 132 14ms 1 Oct 2024 391st MeWhenI 🇻🇦 721 179 1,697ms 7 Nov 2025 392nd weeble 720 74 6ms 1 Jul 2025 393rd MeWhenI 🇻🇦 720 78 309ms 2 Oct 2024 394th Shanethegamer 🇺🇸 720 96 2ms 3 Oct 2024 395th nwellnhof 🇩🇪 718 90 18ms 1 Oct 2024 395th ovs-code 🇩🇪 718 90 15ms 3 Oct 2024 395th luuumine 🇫🇷 718 90 16ms 8 Oct 2025 395th JOrE20 🇺🇸 718 90 18ms 1 Dec 2025 399th ovs-code 🇩🇪 716 81 133ms 17 Apr 2025 400th snyderek 🇺🇸 715 121 53ms 1 Oct 2024 First Prev 321–400 of 867 Next Last