Card Number Validation in all languages in chars. Cheevos Holes Recent Holes Langs Medals Misc 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 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 Maze Medal Tally 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 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript 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 Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 F# Factor Forth Fortran Gleam Go GolfScript 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 Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 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 Maze Medal Tally 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 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Mandelbrot Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 376th emgordon154 692 101 25 Nov 2024 377th tobeannouncd 692 159 13 Dec 2024 378th Bulmenisaurus 691 93 6 Oct 2024 378th lynn 691 93 8 Jan 2025 380th emgordon154 690 78 2 Oct 2024 381st Alex-x90 🇺🇸 689 124 1 Oct 2024 382nd xyangst 688 93 1 Oct 2024 382nd Salutations45 688 93 17 Nov 2024 382nd strattonwhisler 688 93 26 Mar 2025 385th MeWhenI 🇻🇦 688 174 13 Feb 2025 386th pardouin 🇫🇷 687 57 3 Oct 2024 387th Shanethegamer 🇺🇸 687 83 5 Oct 2024 388th emgordon154 687 111 12 Jan 2025 389th NickTheEASDude 🇺🇸 686 115 17 Dec 2024 390th MeWhenI 🇻🇦 684 68 2 Oct 2024 391st DialFrost 🇸🇬 684 94 1 Oct 2024 392nd error256 681 104 14 Oct 2024 393rd ovs-code 🇩🇪 679 84 3 Oct 2024 394th madex 🇩🇪 678 103 2 Oct 2024 395th plcc0 676 37 6 Apr 2025 396th the-zammers 675 163 1 Dec 2024 397th Shanethegamer 🇺🇸 674 65 1 Oct 2024 398th BlankSpruce 672 104 1 Oct 2024 399th aDwarfNamedUrist 671 164 16 Oct 2024 400th snoozingnewt 🇺🇸 670 96 31 Mar 2025 401st error256 668 101 24 Oct 2024 402nd tailorspy 668 128 4 Oct 2024 403rd HumanoidCPU 667 96 7 Mar 2025 404th jwhear 🇺🇸 666 197 1 Oct 2024 405th two-bad 🇬🇧 660 97 2 Oct 2024 406th rniii 659 106 2 Oct 2024 406th gastropner 659 106 11 Feb 2025 408th 4hg 🇺🇸 657 59 5 Oct 2024 409th MeWhenI 🇻🇦 657 88 2 Oct 2024 409th Shanethegamer 🇺🇸 657 88 5 Oct 2024 411th MeWhenI 🇻🇦 656 98 1 Oct 2024 411th GolfingSuccess 🇬🇷 656 98 5 Oct 2024 411th firegene 🇮🇪 656 98 21 Oct 2024 411th JunkIce 656 98 3 Dec 2024 415th dbut2 🇦🇺 656 179 31 Oct 2024 416th Ripick 655 135 23 Mar 2025 417th rucin93 🇵🇱 654 144 28 Oct 2024 418th DialFrost 🇸🇬 653 67 22 Dec 2024 419th BambooleanLogic 🇸🇪 653 98 21 Oct 2024 420th RyanMHsiao 652 201 1 Oct 2024 421st voytxt 🇨🇿 650 89 27 days ago 422nd SirBogman 🇺🇸 650 99 8 Oct 2024 423rd MeWhenI 🇻🇦 648 88 2 Oct 2024 424th elgan65536 645 146 2 Oct 2024 425th bac0id 644 180 9 Jan 2025 426th FlorianCassayre 🇫🇷 643 100 1 Oct 2024 426th bzijlema 🇳🇱 643 100 10 Oct 2024 426th bricknellj 643 100 4 Mar 2025 429th w911 642 183 7 Oct 2024 430th Antibrain0 641 123 8 Nov 2024 431st stefangimmillaro 638 73 1 Oct 2024 432nd btjones0 637 101 2 Dec 2024 433rd Jonatan6 🇩🇰 635 110 24 Oct 2024 434th CaedenHarper 🇨🇦 635 185 3 Jan 2025 435th yoshykai 633 183 12 Apr 2025 436th annaproxy 630 102 1 Oct 2024 436th xyangst 630 102 1 Oct 2024 438th Shanethegamer 🇺🇸 629 74 16 Oct 2024 439th dokutan 627 91 19 Oct 2024 440th AlephSquirrel 625 40 1 Oct 2024 441st msbranicky 625 188 7 Jan 2025 442nd ryyyn 624 103 8 Jan 2025 443rd tomh1012 621 114 17 Oct 2024 444th dokutan 621 127 10 Dec 2024 445th DialFrost 🇸🇬 621 307 21 days ago 446th BalaM314 616 104 4 Feb 2025 447th codereport 🇨🇦 615 63 2 Oct 2024 448th MarcMush 🇫🇷 615 91 8 Oct 2024 449th 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