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 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 Chars Time Submitted 321st MeWhenI 🇻🇦 765 109 334ms 2 Oct 2024 321st edsrzf 🇳🇿 765 109 365ms 23 Jul 2025 323rd ovs-code 🇩🇪 764 122 159ms 25 Apr 2025 324th emplv 🇱🇻 763 76 138ms 29 Oct 2024 325th albanian-laundromat 763 118 84ms 13 Nov 2025 326th GolfingSuccess 🇬🇷 762 70 6ms 6 Jun 2025 327th Shanethegamer 🇺🇸 761 132 7ms 2 Oct 2024 328th inventshah 760 85 18ms 4 Oct 2024 328th Artemis21 🇬🇧 760 85 10ms 10 Jan 2025 328th keelimeguy 🇺🇸 760 85 15ms 14 Jun 2025 331st emgordon154 759 63 35ms 18 Nov 2024 331st SirBogman 🇺🇸 759 63 33ms 19 Jul 2025 333rd MeWhenI 🇻🇦 759 89 6ms 2 Oct 2024 334th weliveinhell 🇭🇹 757 85 9ms 1 Oct 2024 334th SteRoy 757 85 10ms 13 May 2025 336th AlephSquirrel 756 76 467ms 1 Oct 2024 337th 0xjac 🇨🇭 754 158 252ms 17 Jun 2025 338th GrayJoKing 🇦🇺 751 90 5ms 1 Oct 2024 339th stackofbears 750 52 35ms 14 Mar 2025 340th MeWhenI 🇻🇦 750 89 2,360ms 24 Oct 2024 341st DialFrost 🇸🇬 749 75 825ms 10 Oct 2024 342nd MeWhenI 🇻🇦 749 162 26ms 2 Oct 2024 343rd Maznek 748 86 10ms 4 Oct 2024 344th rak1507 🇬🇧 747 38 2ms 30 Dec 2024 345th Shanethegamer 🇺🇸 747 64 35ms 3 Oct 2024 345th Andriamanitra 🇫🇮 747 64 40ms 5 Oct 2024 347th Babafaba 747 77 390ms 11 Nov 2025 348th MeWhenI 🇻🇦 747 106 1ms 2 Oct 2024 349th luuumine 🇫🇷 746 92 1ms 5 Dec 2025 349th bzd7 746 92 2ms 7 Dec 2025 351st sean-niemann 🇺🇸 746 116 411ms 24 Oct 2024 351st luuumine 🇫🇷 746 116 430ms 15 Dec 2025 353rd Shanethegamer 🇺🇸 744 121 98ms 3 Oct 2024 354th sean-niemann 🇺🇸 743 93 120ms 24 Oct 2024 355th Natanaelel 🇸🇪 742 53 3ms 12 days ago 356th SirBogman 🇺🇸 741 63 283ms 23 Jul 2025 357th Shanethegamer 🇺🇸 741 90 2,343ms 28 Oct 2024 357th ScottHamper 741 90 2,700ms 11 Dec 2025 359th GrayJoKing 🇦🇺 740 79 1,204ms 1 Oct 2024 360th KrausRaus 🇺🇸 740 87 9ms 1 Oct 2024 360th GeorgeStechman 🇬🇧 740 87 9ms 24 Oct 2024 360th coreynash 740 87 9ms 13 Feb 2025 360th kirjavascript 740 87 11ms 22 Jul 2025 364th Shanethegamer 🇺🇸 740 156 30ms 2 Oct 2024 365th sean-niemann 🇺🇸 738 93 3ms 24 Oct 2024 366th HumanoidCPU 737 78 454ms 7 Mar 2025 367th MeWhenI 🇻🇦 736 111 116ms 2 Oct 2024 368th MeWhenI 🇻🇦 735 34 58ms 2 Oct 2024 368th emgordon154 735 34 69ms 11 Sep 2025 370th stefangimmillaro 735 92 8ms 2 Oct 2024 370th Shanethegamer 🇺🇸 735 92 5ms 3 Oct 2024 372nd Shanethegamer 🇺🇸 735 100 122ms 24 May 2025 373rd wh3n3v3r 🇨🇿 734 88 10ms 18 Nov 2024 374th Shanethegamer 🇺🇸 733 116 1,026ms 1 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 128ms 6 days ago 379th stefangimmillaro 730 94 1ms 30 Oct 2024 380th anter69 🇭🇺 729 78 1,271ms 1 Oct 2024 381st Shanethegamer 🇺🇸 729 112 99ms 3 Oct 2024 382nd error256 728 98 416ms 4 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 2 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 ryyyn 🇺🇸 718 90 19ms 26 Jul 2025 395th luuumine 🇫🇷 718 90 16ms 8 Oct 2025 395th JOrE20 🇺🇸 718 90 18ms 1 Dec 2025 400th ovs-code 🇩🇪 716 81 133ms 17 Apr 2025 First Prev 321–400 of 864 Next Last