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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 401st wh3n3v3r 🇨🇿 735 88 11ms 18 Nov 2024 401st blaztoma 🇱🇹 735 88 17ms 2 hours ago 403rd Shanethegamer 🇺🇸 735 100 161ms 24 May 2025 404th Kacarott 🇦🇺 734 73 1,111ms 1 Oct 2024 404th chunes3 🇺🇸 734 73 1,046ms 2 Oct 2024 406th stefangimmillaro 734 94 1ms 30 Oct 2024 406th emgordon154 734 94 2ms 7 Feb 2026 408th DialFrost 🇸🇬 734 131 7ms 11 Dec 2024 409th Shanethegamer 🇺🇸 733 116 1,027ms 1 Oct 2024 410th edsrzf 🇳🇿 732 52 139ms 16 Jan 2026 411th error256 731 109 9ms 24 Jul 2025 411th zacjl 731 109 9ms 11 days ago 413th stefangimmillaro 731 114 376ms 13 Oct 2024 414th Shanethegamer 🇺🇸 729 112 109ms 3 Oct 2024 415th Shanethegamer 🇺🇸 729 132 8ms 2 Oct 2024 416th error256 728 98 436ms 17 Jan 2026 417th dtbao20 🇻🇳 724 89 11ms 1 Oct 2024 417th madeforlosers 724 89 10ms 17 Oct 2024 417th junkondo-jp 724 89 10ms 14 Dec 2024 417th alexsave 724 89 10ms 20 Jan 2026 421st Shanethegamer 🇺🇸 723 96 2ms 3 Oct 2024 422nd annaproxy 723 132 15ms 1 Oct 2024 423rd MeWhenI 🇻🇦 721 78 316ms 2 Oct 2024 424th MeWhenI 🇻🇦 721 102 155ms 11 days ago 425th MeWhenI 🇻🇦 721 179 1,697ms 7 Nov 2025 426th weeble 720 74 6ms 1 Jul 2025 427th Shanethegamer 🇺🇸 719 126 1,342ms 2 Oct 2024 428th nwellnhof 🇩🇪 718 90 20ms 1 Oct 2024 428th ovs-code 🇩🇪 718 90 17ms 3 Oct 2024 428th luuumine 🇫🇷 718 90 17ms 8 Oct 2025 428th firegene 🇮🇪 718 90 16ms 19 Feb 2026 428th lukegustafson 🇺🇸 718 90 17ms 25 Feb 2026 433rd snyderek 🇺🇸 718 121 56ms 1 Oct 2024 434th ovs-code 🇩🇪 717 81 144ms 17 Apr 2025 435th JOrE20 716 90 12ms 11 Feb 2026 436th ovs-code 🇩🇪 714 75 1,104ms 1 Oct 2024 437th h3ra993huskp 🇯🇵 714 131 422ms 30 Nov 2025 438th rzv-me 713 95 6ms 5 Oct 2024 439th DialFrost 🇸🇬 713 106 12ms 13 Dec 2024 440th CLOStrophobic 🇮🇹 712 160 40ms 27 Feb 2025 441st DialFrost 🇸🇬 711 132 229ms 8 Apr 2025 442nd 5cw 🇺🇸 710 91 16ms 1 Oct 2024 442nd stefangimmillaro 710 91 16ms 13 Oct 2024 442nd GrayJoKing 🇦🇺 710 91 19ms 2 Jul 2025 445th MeWhenI 🇻🇦 710 115 453ms 5 Oct 2024 446th Natanaelel 🇸🇪 709 55 34ms 1 Mar 2025 447th GrayJoKing 🇦🇺 708 82 133ms 1 Oct 2024 448th Shanethegamer 🇺🇸 706 118 376ms 2 Oct 2024 449th BlankSpruce 706 123 439ms 1 Oct 2024 450th mousetail 🇳🇱 706 133 159ms 3 Oct 2024 451st cbrt-x 706 157 139ms 1 Oct 2024 452nd edsrzf 🇳🇿 705 76 1,005ms 1 Oct 2024 453rd janlelis 704 68 36ms 1 Oct 2024 453rd tatzyr 🇯🇵 704 68 40ms 23 Dec 2024 455th Shanethegamer 🇺🇸 704 156 30ms 2 Oct 2024 456th Shanethegamer 🇺🇸 703 92 16ms 3 Oct 2024 456th error256 703 92 21ms 7 Oct 2024 456th thatbirdguythatuknownot 703 92 18ms 14 Oct 2024 459th emgordon154 702 76 5ms 7 Jun 2025 460th LukeBridges 🇬🇧 701 92 10ms 3 Oct 2024 461st Alex-x90 🇺🇸 701 124 453ms 1 Oct 2024 461st Herbert00709 🇵🇱 701 124 61ms 14 Jun 2025 463rd albanian-laundromat 🇺🇸 700 108 55ms 6 Mar 2026 464th emgordon154 700 134 240ms 25 Feb 2025 465th Shanethegamer 🇺🇸 699 101 5ms 2 Oct 2024 466th tobeannouncd 697 159 146ms 13 Dec 2024 467th Bulmenisaurus 695 93 17ms 6 Oct 2024 467th lynn 695 93 16ms 8 Jan 2025 467th RaBa21 🇭🇺 695 93 17ms 19 Jul 2025 467th KasperKivimaeki 🇫🇮 695 93 17ms 30 Nov 2025 471st Shanethegamer 🇺🇸 694 83 445ms 5 Oct 2024 472nd Shanethegamer 🇺🇸 693 41 3ms 4 Oct 2024 473rd pardouin 🇫🇷 693 57 4ms 3 Oct 2024 474th xyangst 693 93 11ms 1 Oct 2024 474th Salutations45 693 93 10ms 17 Nov 2024 474th strattonwhisler 693 93 10ms 26 Mar 2025 477th Alex-x90 🇺🇸 690 100 2ms 1 Oct 2024 478th NickTheEASDude 🇺🇸 690 115 3ms 17 Dec 2024 479th DialFrost 🇸🇬 688 94 18ms 1 Oct 2024 480th dokutan 687 116 7ms 19 Oct 2024 First Prev 401–480 of 931 Next Last