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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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim 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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim 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 601st commandz0 🇺🇸 604 107 19ms 7 Oct 2024 601st zbreit 🇺🇸 604 107 18ms 29 Oct 2024 601st StardustGogeta 604 107 17ms 30 Oct 2024 601st ZakkkkAttackkkk 🇵🇭 604 107 19ms 8 Feb 2025 601st InigoK 🇺🇸 604 107 19ms 22 Sep 2025 601st Lv0Sys 🇵🇱 604 107 19ms 22 Feb 2026 607th dokutan 600 116 2ms 19 Nov 2025 608th neihousaigaai 599 108 19ms 4 Oct 2024 608th StefanHabel 🇨🇦 599 108 20ms 23 Jan 2025 608th CaedenHarper 🇨🇦 599 108 18ms 22 Jul 2025 611th MeWhenI 🇻🇦 597 98 8ms 1 Oct 2024 612th tomh1012 597 108 11ms 12 Mar 2026 613th MeWhenI 🇻🇦 596 73 2ms 2 Oct 2024 614th arcpolaris 596 120 433ms 28 Jan 2025 615th SirBogman 🇺🇸 595 64 160ms 11 Jul 2025 616th DialFrost 🇸🇬 590 67 8ms 25 Jan 2025 617th roguh 🇬🇹 589 117 1ms 13 Oct 2024 617th iczelia 🇩🇪 589 117 2ms 25 Sep 2025 619th dokutan 588 98 816ms 14 Mar 2026 620th cros107 🇦🇺 588 110 18ms 1 Jan 2025 620th guilhem-roy 🇫🇷 588 110 19ms 29 May 2025 622nd JunkIce 587 98 459ms 3 Dec 2024 622nd commandz0 🇺🇸 587 98 508ms 1 Sep 2025 624th Schmitt-Very-Cool 587 159 521ms 26 Sep 2025 625th dokutan 587 174 5ms 21 Feb 2025 626th gigaprofisi 🇺🇸 586 110 11ms 11 Aug 2025 626th denkyuu1 586 110 11ms 23 days ago 626th RealBen9 🇬🇧 586 110 10ms 11 days ago 629th amazingalek 🇳🇴 586 122 501ms 1 Jan 2026 630th mousetail 🇳🇱 583 111 20ms 6 Oct 2024 631st Matter1024 🇮🇳 583 140 462ms 16 days ago 632nd michelebastione 🇮🇹 582 123 483ms 26 Aug 2025 632nd matanberstadt 582 123 442ms 15 days ago 634th CaedenHarper 🇨🇦 581 99 484ms 8 Mar 2026 635th emgordon154 579 49 3ms 9 Dec 2025 636th bac0id 579 119 2ms 10 Jan 2025 637th MeWhenI 🇻🇦 578 111 92ms 2 Oct 2024 638th OllieBoyne 🇬🇧 577 112 19ms 17 Oct 2024 638th WillConker 577 112 11ms 22 Oct 2024 638th maxgodfrey2004 🇨🇦 577 112 10ms 4 Jan 2025 641st 823126 576 112 10ms 13 Nov 2024 641st snoozingnewt 🇨🇦 576 112 11ms 2 Nov 2025 643rd MeWhenI 🇻🇦 576 331 15ms 2 Oct 2024 644th KatieLG 🇬🇧 574 99 1,400ms 1 Oct 2024 645th MeWhenI 🇻🇦 572 164 196ms 6 Oct 2024 646th Mabeloid 🇳🇴 570 121 1ms 21 Oct 2025 647th janAkali 🇷🇺 569 147 395ms 10 Mar 2026 648th denkyuu1 563 100 354ms 8 days ago 649th aliakseikalosha 563 127 488ms 10 Oct 2024 650th jipsong 🇩🇪 562 115 18ms 12 May 2025 651st jgbaldwinbrown 561 123 2ms 14 Jan 2026 652nd dokutan 561 155 446ms 10 Feb 2026 653rd ravnskjaer 🇩🇰 559 167 474ms 15 Dec 2025 654th denkyuu1 557 71 4ms 11 mins ago 655th rowechenzhong 557 116 17ms 17 Oct 2024 656th madex 🇩🇪 556 116 16ms 1 Oct 2024 657th CaedenHarper 🇨🇦 555 104 747ms 24 Nov 2025 658th FortuiteMan 🇫🇷 554 270 44ms 22 Nov 2025 659th MeWhenI 🇻🇦 554 290 8ms 2 Oct 2024 660th dtbao20 🇻🇳 553 117 19ms 1 Oct 2024 660th Pyroan 553 117 18ms 22 Feb 2025 660th vgamula 🇺🇦 553 117 17ms 5 Aug 2025 660th FortuiteMan 🇫🇷 553 117 18ms 1 Dec 2025 660th yujqiao 553 117 25ms 16 Dec 2025 665th snoozingnewt 🇨🇦 552 148 132ms 20 Nov 2025 666th msbranicky 552 185 4ms 20 Jan 2025 667th edsrzf 🇳🇿 551 135 6ms 27 Feb 2025 668th gpikmddk 550 130 599ms 30 Oct 2025 669th ethanlally 549 170 439ms 19 Nov 2025 669th snoozingnewt 🇨🇦 549 170 488ms 5 Dec 2025 671st KatieLG 🇬🇧 548 105 635ms 11 Feb 2026 672nd elgan65536 🇺🇸 548 118 11ms 2 Oct 2024 672nd logvp 548 118 18ms 6 Oct 2024 672nd ahmetdemirag 🇨🇾 548 118 10ms 6 Feb 2025 672nd dirckvdende 548 118 17ms 10 Jul 2025 676th xyangst 548 171 179ms 1 Oct 2024 677th zakariamouhid 546 118 12ms 1 Oct 2024 678th najs91 546 131 401ms 15 Oct 2024 678th bac0id 546 131 444ms 9 Jan 2025 678th CaedenHarper 🇨🇦 546 131 409ms 17 Oct 2025 681st kmathis22 546 171 509ms 19 Nov 2025 682nd JDiLenarda 🇫🇷 544 165 1,630ms 1 Oct 2024 683rd jtaxen 543 119 18ms 21 Oct 2024 683rd psbpsbp 543 119 9ms 19 Dec 2024 683rd klixel 🇨🇦 543 119 10ms 9 Apr 2025 683rd vhoulbreque 🇫🇷 543 119 16ms 21 Nov 2025 687th eranws 542 119 11ms 23 Dec 2024 688th TaserTheFox 🇺🇸 539 120 18ms 8 Oct 2024 688th yokasuretsu 539 120 11ms 26 Jan 2025 688th Troon 539 120 10ms 17 Feb 2025 688th denkyuu1 539 120 17ms 2 hours ago 692nd mousetail 🇳🇱 539 128 2ms 3 Oct 2024 693rd Sciman101 539 147 2ms 26 Mar 2025 694th msbranicky 536 175 161ms 13 Dec 2024 695th JRaspass 🇬🇧 534 74 3ms 24 Mar 2026 696th BREMAUCY 🇫🇷 534 121 17ms 18 Jul 2025 696th retrohun 534 121 10ms 21 Mar 2026 698th deancureton 533 121 11ms 30 Dec 2024 699th chartung17 530 122 10ms 24 Mar 2025 700th msbranicky 530 126 2,384ms 9 Jan 2025 First Prev 601–700 of 942 Next Last