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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 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 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 Calendar 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi 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 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 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 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 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 Calendar 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 Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 376th weeble 720 74 8ms 1 Jul 2025 377th MeWhenI 🇻🇦 720 78 287ms 2 Oct 2024 378th Shanethegamer 🇺🇸 720 96 2ms 3 Oct 2024 379th nwellnhof 🇩🇪 717 90 18ms 1 Oct 2024 379th ovs-code 🇩🇪 717 90 16ms 3 Oct 2024 379th ryyyn 🇺🇸 717 90 20ms 26 Jul 2025 379th luuumine 🇫🇷 717 90 18ms 8 Oct 2025 383rd ovs-code 🇩🇪 716 81 133ms 17 Apr 2025 384th alexsave 715 90 9ms 28 Oct 2024 385th h3ra993huskp 🇯🇵 712 131 337ms 12 hours ago 386th rzv-me 711 95 5ms 5 Oct 2024 387th 5cw 🇺🇸 710 91 15ms 1 Oct 2024 387th stefangimmillaro 710 91 16ms 13 Oct 2024 387th dokutan 710 91 10ms 19 Oct 2024 387th GrayJoKing 🇦🇺 710 91 19ms 2 Jul 2025 391st snyderek 🇺🇸 710 121 53ms 1 Oct 2024 392nd Natanaelel 🇸🇪 709 55 42ms 1 Mar 2025 393rd DialFrost 🇸🇬 709 106 11ms 13 Dec 2024 394th GrayJoKing 🇦🇺 707 82 121ms 1 Oct 2024 395th DialFrost 🇸🇬 707 132 213ms 8 Apr 2025 396th Shanethegamer 🇺🇸 706 118 332ms 2 Oct 2024 397th MeWhenI 🇻🇦 704 115 435ms 5 Oct 2024 398th Alex-x90 🇺🇸 703 100 2ms 1 Oct 2024 399th cbrt-x 703 157 197ms 1 Oct 2024 400th janlelis 702 68 37ms 1 Oct 2024 400th tatzyr 🇯🇵 702 68 39ms 23 Dec 2024 402nd emgordon154 702 76 6ms 7 Jun 2025 403rd Shanethegamer 🇺🇸 702 92 16ms 3 Oct 2024 403rd error256 702 92 19ms 7 Oct 2024 403rd thatbirdguythatuknownot 702 92 15ms 14 Oct 2024 406th sean-niemann 🇺🇸 701 82 450ms 23 Dec 2024 407th mousetail 🇳🇱 701 133 152ms 3 Oct 2024 408th LukeBridges 🇬🇧 699 92 10ms 3 Oct 2024 409th BlankSpruce 698 123 376ms 1 Oct 2024 410th emgordon154 696 101 2ms 25 Nov 2024 411th emgordon154 696 134 213ms 25 Feb 2025 412th tobeannouncd 695 159 162ms 13 Dec 2024 413th Bulmenisaurus 694 93 17ms 6 Oct 2024 413th lynn 694 93 17ms 8 Jan 2025 413th RaBa21 🇭🇺 694 93 18ms 19 Jul 2025 416th Shanethegamer 🇺🇸 693 41 3ms 4 Oct 2024 417th Shanethegamer 🇺🇸 693 83 508ms 5 Oct 2024 418th xyangst 692 93 9ms 1 Oct 2024 418th Salutations45 692 93 9ms 17 Nov 2024 418th strattonwhisler 692 93 8ms 26 Mar 2025 421st Alex-x90 🇺🇸 692 124 366ms 1 Oct 2024 421st Herbert00709 🇵🇱 692 124 50ms 14 Jun 2025 423rd NickTheEASDude 🇺🇸 690 115 3ms 17 Dec 2024 424th pardouin 🇫🇷 688 57 5ms 3 Oct 2024 425th DialFrost 🇸🇬 687 94 17ms 1 Oct 2024 426th dokutan 687 116 8ms 19 Oct 2024 427th MeWhenI 🇻🇦 686 68 223ms 2 Oct 2024 428th error256 685 104 367ms 14 Oct 2024 429th ovs-code 🇩🇪 684 84 415ms 3 Oct 2024 430th Lv0Sys 🇵🇱 684 94 9ms 15 Jun 2025 430th XenThe 🇬🇧 684 94 9ms 7 Jul 2025 432nd madex 🇩🇪 683 103 2ms 2 Oct 2024 433rd KatieLG 🇬🇧 682 70 41ms 2 Oct 2025 434th aDwarfNamedUrist 682 162 183ms 1 Sep 2025 435th Shanethegamer 🇺🇸 679 65 2ms 1 Oct 2024 436th MeWhenI 🇻🇦 678 108 179ms 2 Oct 2024 437th the-zammers 678 163 140ms 1 Dec 2024 438th Shanethegamer 🇺🇸 677 172 42ms 2 Oct 2024 439th plcc0 676 37 70ms 6 Apr 2025 440th snoozingnewt 🇺🇸 676 95 75ms 23 Oct 2025 441st BlankSpruce 676 104 2ms 1 Oct 2024 442nd KasperKivimaeki 🇫🇮 673 96 41ms 1 Jul 2025 442nd MeWhenI 🇻🇦 673 96 22ms 30 Jul 2025 444th jerrandolph 672 177 252ms 25 Sep 2025 444th CaedenHarper 🇨🇦 672 177 241ms 12 days ago 446th edsrzf 🇳🇿 671 99 2,289ms 5 Jul 2025 447th tailorspy 671 128 362ms 4 Oct 2024 448th HumanoidCPU 670 96 9ms 7 Mar 2025 449th Herbert00709 🇵🇱 670 105 2ms 14 Jun 2025 449th luuumine 🇫🇷 670 105 2ms 3 days ago First Prev 376–450 of 829 Next Last