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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 301st retrohun 769 63 20ms 2 Oct 2024 302nd AlephSquirrel 769 84 19ms 1 Oct 2024 302nd kops-cg 769 84 19ms 22 Feb 2025 302nd xnor-gate 769 84 19ms 23 Feb 2025 302nd plcc0 769 84 16ms 6 Apr 2025 302nd KatieLG 🇬🇧 769 84 16ms 25 May 2025 307th DialFrost 🇸🇬 769 90 2ms 9 days ago 308th targrik 768 88 8ms 7 Feb 2025 309th lifthrasiir 🇰🇷 767 37 2ms 27 Nov 2024 310th didion0 🇺🇸 766 84 9ms 10 Jan 2025 311th DialFrost 🇸🇬 766 131 6ms 11 Dec 2024 312th MeWhenI 🇻🇦 765 109 331ms 2 Oct 2024 312th edsrzf 🇳🇿 765 109 377ms 23 Jul 2025 314th ovs-code 🇩🇪 764 122 157ms 25 Apr 2025 315th emplv 🇱🇻 763 76 135ms 29 Oct 2024 316th albanian-laundromat 763 118 85ms 15 days ago 317th GolfingSuccess 🇬🇷 762 70 6ms 6 Jun 2025 318th GrayJoKing 🇦🇺 761 79 1,080ms 1 Oct 2024 319th Shanethegamer 🇺🇸 761 132 8ms 2 Oct 2024 320th inventshah 760 85 19ms 4 Oct 2024 320th Artemis21 🇬🇧 760 85 10ms 10 Jan 2025 320th keelimeguy 🇺🇸 760 85 16ms 14 Jun 2025 323rd MeWhenI 🇻🇦 759 89 5ms 2 Oct 2024 324th emgordon154 758 63 40ms 18 Nov 2024 324th SirBogman 🇺🇸 758 63 41ms 19 Jul 2025 326th weliveinhell 🇭🇹 757 85 9ms 1 Oct 2024 326th SteRoy 757 85 8ms 13 May 2025 328th AlephSquirrel 756 76 539ms 1 Oct 2024 329th sean-niemann 🇺🇸 756 93 2ms 24 Oct 2024 330th 0xjac 🇨🇭 753 158 262ms 17 Jun 2025 331st GrayJoKing 🇦🇺 751 90 4ms 1 Oct 2024 332nd stackofbears 750 52 38ms 14 Mar 2025 333rd DialFrost 🇸🇬 749 75 765ms 10 Oct 2024 334th Maznek 748 86 9ms 4 Oct 2024 335th stefangimmillaro 748 94 2ms 30 Oct 2024 336th MeWhenI 🇻🇦 748 106 2ms 2 Oct 2024 337th rak1507 🇬🇧 747 38 3ms 30 Dec 2024 338th Babafaba 747 77 351ms 17 days ago 339th Shanethegamer 🇺🇸 746 64 44ms 3 Oct 2024 339th Andriamanitra 🇫🇮 746 64 38ms 5 Oct 2024 341st MeWhenI 🇻🇦 746 89 2,930ms 24 Oct 2024 342nd Shanethegamer 🇺🇸 744 121 80ms 3 Oct 2024 343rd sean-niemann 🇺🇸 743 93 108ms 24 Oct 2024 344th MeWhenI 🇻🇦 742 162 27ms 2 Oct 2024 345th SirBogman 🇺🇸 741 63 275ms 23 Jul 2025 346th sean-niemann 🇺🇸 740 116 385ms 24 Oct 2024 347th KrausRaus 🇺🇸 739 87 9ms 1 Oct 2024 347th GeorgeStechman 🇬🇧 739 87 9ms 24 Oct 2024 347th coreynash 739 87 9ms 13 Feb 2025 347th kirjavascript 739 87 9ms 22 Jul 2025 351st Shanethegamer 🇺🇸 738 90 2,988ms 28 Oct 2024 352nd HumanoidCPU 737 78 461ms 7 Mar 2025 353rd MeWhenI 🇻🇦 736 111 122ms 2 Oct 2024 354th MeWhenI 🇻🇦 735 34 61ms 2 Oct 2024 354th emgordon154 735 34 60ms 11 Sep 2025 356th stefangimmillaro 735 92 7ms 2 Oct 2024 356th Shanethegamer 🇺🇸 735 92 5ms 3 Oct 2024 358th wh3n3v3r 🇨🇿 734 88 10ms 18 Nov 2024 359th Shanethegamer 🇺🇸 733 116 21ms 1 Oct 2024 360th Shanethegamer 🇺🇸 732 100 116ms 24 May 2025 361st Shanethegamer 🇺🇸 732 156 30ms 2 Oct 2024 362nd Shanethegamer 🇺🇸 731 101 4ms 2 Oct 2024 363rd error256 731 109 8ms 24 Jul 2025 364th stefangimmillaro 731 114 333ms 13 Oct 2024 365th anter69 🇭🇺 729 78 1,023ms 1 Oct 2024 366th Shanethegamer 🇺🇸 729 112 102ms 3 Oct 2024 367th snoozingnewt 🇺🇸 728 79 348ms 8 days ago 368th CLOStrophobic 🇮🇹 728 160 41ms 27 Feb 2025 369th zacjl 724 110 6ms 10 Oct 2024 370th Shanethegamer 🇺🇸 724 126 1,343ms 2 Oct 2024 371st dtbao20 🇻🇳 723 89 9ms 1 Oct 2024 371st madeforlosers 723 89 9ms 17 Oct 2024 371st junkondo-jp 723 89 10ms 14 Dec 2024 374th annaproxy 723 132 19ms 1 Oct 2024 375th MeWhenI 🇻🇦 721 179 1,554ms 20 days ago First Prev 301–375 of 829 Next Last