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 ><> ALGOL 68 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 ArkScript 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 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 ArkScript 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 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 399th junkondo-jp 724 89 9ms 14 Dec 2024 399th alexsave 724 89 9ms 20 Jan 2026 403rd zacjl 724 110 7ms 10 Oct 2024 404th Shanethegamer 🇺🇸 724 126 1,391ms 2 Oct 2024 405th Shanethegamer 🇺🇸 723 96 2ms 3 Oct 2024 406th annaproxy 723 132 15ms 1 Oct 2024 407th MeWhenI 🇻🇦 721 179 1,697ms 7 Nov 2025 408th weeble 720 74 6ms 1 Jul 2025 409th MeWhenI 🇻🇦 720 78 316ms 2 Oct 2024 410th nwellnhof 🇩🇪 718 90 20ms 1 Oct 2024 410th ovs-code 🇩🇪 718 90 17ms 3 Oct 2024 410th luuumine 🇫🇷 718 90 17ms 8 Oct 2025 410th firegene 🇮🇪 718 90 16ms 5 days ago 410th lukegustafson 🇺🇸 718 90 20ms 4 hours ago 415th snyderek 🇺🇸 718 121 59ms 1 Oct 2024 416th ovs-code 🇩🇪 716 81 126ms 17 Apr 2025 417th JOrE20 716 90 10ms 13 days ago 418th Shanethegamer 🇺🇸 715 101 5ms 2 Oct 2024 419th ovs-code 🇩🇪 714 75 1,104ms 1 Oct 2024 420th rzv-me 713 95 5ms 5 Oct 2024 421st h3ra993huskp 🇯🇵 713 131 422ms 30 Nov 2025 422nd CLOStrophobic 🇮🇹 712 160 40ms 27 Feb 2025 423rd 5cw 🇺🇸 710 91 16ms 1 Oct 2024 423rd stefangimmillaro 710 91 16ms 13 Oct 2024 423rd dokutan 710 91 10ms 19 Oct 2024 423rd GrayJoKing 🇦🇺 710 91 19ms 2 Jul 2025 427th Natanaelel 🇸🇪 709 55 34ms 1 Mar 2025 428th DialFrost 🇸🇬 709 106 12ms 13 Dec 2024 429th GrayJoKing 🇦🇺 707 82 134ms 1 Oct 2024 430th DialFrost 🇸🇬 707 132 224ms 8 Apr 2025 431st Shanethegamer 🇺🇸 706 118 379ms 2 Oct 2024 432nd BlankSpruce 706 123 423ms 1 Oct 2024 433rd cbrt-x 706 157 139ms 1 Oct 2024 434th edsrzf 🇳🇿 705 76 1,005ms 1 Oct 2024 435th janlelis 704 68 39ms 1 Oct 2024 435th tatzyr 🇯🇵 704 68 38ms 23 Dec 2024 437th MeWhenI 🇻🇦 704 115 453ms 5 Oct 2024 438th Shanethegamer 🇺🇸 704 156 30ms 2 Oct 2024 439th Shanethegamer 🇺🇸 703 92 16ms 3 Oct 2024 439th error256 703 92 21ms 7 Oct 2024 439th thatbirdguythatuknownot 703 92 18ms 14 Oct 2024 442nd emgordon154 702 76 5ms 7 Jun 2025 443rd Alex-x90 🇺🇸 701 124 438ms 1 Oct 2024 443rd Herbert00709 🇵🇱 701 124 56ms 14 Jun 2025 445th mousetail 🇳🇱 701 133 149ms 3 Oct 2024 446th LukeBridges 🇬🇧 700 92 10ms 3 Oct 2024 447th tobeannouncd 697 159 146ms 13 Dec 2024 448th emgordon154 696 134 216ms 25 Feb 2025 449th Bulmenisaurus 695 93 17ms 6 Oct 2024 449th lynn 695 93 16ms 8 Jan 2025 449th RaBa21 🇭🇺 695 93 17ms 19 Jul 2025 449th KasperKivimaeki 🇫🇮 695 93 17ms 30 Nov 2025 449th blaztoma 🇱🇹 695 93 18ms 18 Dec 2025 454th Shanethegamer 🇺🇸 693 41 3ms 4 Oct 2024 455th Shanethegamer 🇺🇸 693 83 445ms 5 Oct 2024 456th xyangst 692 93 12ms 1 Oct 2024 456th Salutations45 692 93 10ms 17 Nov 2024 456th strattonwhisler 692 93 10ms 26 Mar 2025 459th pardouin 🇫🇷 691 57 4ms 3 Oct 2024 460th NickTheEASDude 🇺🇸 690 115 3ms 17 Dec 2024 461st DialFrost 🇸🇬 688 94 18ms 1 Oct 2024 462nd Alex-x90 🇺🇸 688 100 2ms 1 Oct 2024 463rd dokutan 687 116 6ms 19 Oct 2024 464th MeWhenI 🇻🇦 686 68 285ms 2 Oct 2024 465th ovs-code 🇩🇪 685 84 458ms 3 Oct 2024 466th XenThe 🇬🇧 685 94 8ms 7 Jul 2025 467th KatieLG 🇬🇧 684 70 36ms 2 Oct 2025 468th aDwarfNamedUrist 684 162 138ms 1 Sep 2025 469th MeWhenI 🇻🇦 681 108 141ms 2 Oct 2024 470th the-zammers 680 163 149ms 1 Dec 2024 471st tailorspy 679 128 456ms 4 Oct 2024 472nd GrayJoKing 🇦🇺 678 79 1,204ms 1 Oct 2024 473rd snoozingnewt 🇨🇦 676 95 79ms 23 Oct 2025 474th edsrzf 🇳🇿 674 99 2,281ms 5 Jul 2025 474th jkelly467 674 99 2,384ms 22 Jan 2026 476th Yax42 🇫🇷 674 129 73ms 8 Jan 2026 476th emgordon154 674 129 61ms 17 days ago 478th MeWhenI 🇻🇦 673 96 17ms 30 Jul 2025 479th jerrandolph 673 177 303ms 25 Sep 2025 479th CaedenHarper 🇨🇦 673 177 292ms 17 Nov 2025 First Prev 401–480 of 898 Next Last