Card Number Validation in all languages in bytes. 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 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 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 Bytes Time 374th junkondo-jp 719 89 14 Dec 2024 377th MeWhenI 🇻🇦 718 78 2 Oct 2024 378th weeble 717 75 16 Dec 2024 379th Shanethegamer 🇺🇸 717 106 2 Oct 2024 380th voytxt 🇨🇿 716 89 23 days ago 381st OllieBoyne 🇬🇧 716 112 17 Oct 2024 381st WillConker 716 112 22 Oct 2024 381st maxgodfrey2004 🇨🇦 716 112 4 Jan 2025 384th annaproxy 715 132 1 Oct 2024 385th Shanethegamer 🇺🇸 714 112 3 Oct 2024 386th DialFrost 🇸🇬 714 132 8 Apr 2025 387th anter69 🇭🇺 711 67 1 Oct 2024 388th alexsave 711 90 28 Oct 2024 389th rzv-me 710 95 5 Oct 2024 390th SB-945 710 113 1 Oct 2024 390th Artemis21 🇬🇧 710 113 23 Jan 2025 392nd mousetail 🇳🇱 708 133 3 Oct 2024 393rd snyderek 🇺🇸 706 121 1 Oct 2024 394th Natanaelel 🇸🇪 705 55 1 Mar 2025 395th MeWhenI 🇻🇦 704 73 3 Oct 2024 396th HumanoidCPU 704 114 7 Mar 2025 397th MeWhenI 🇻🇦 704 115 5 Oct 2024 398th MeWhenI 🇻🇦 703 108 2 Oct 2024 399th emgordon154 703 134 25 Feb 2025 400th cbrt-x 701 157 1 Oct 2024 401st janlelis 700 68 1 Oct 2024 402nd Alex-x90 🇺🇸 698 100 1 Oct 2024 403rd LukeBridges 🇬🇧 696 92 3 Oct 2024 404th BlankSpruce 695 123 1 Oct 2024 405th Shanethegamer 🇺🇸 692 41 4 Oct 2024 406th emgordon154 692 101 25 Nov 2024 407th Bmrl7 692 116 3 Oct 2024 407th rowechenzhong 692 116 17 Oct 2024 407th jipsong 🇩🇪 692 116 81 mins ago 410th tobeannouncd 692 159 13 Dec 2024 411th emgordon154 690 78 2 Oct 2024 412th Alex-x90 🇺🇸 689 124 1 Oct 2024 413th Salutations45 688 93 17 Nov 2024 413th strattonwhisler 688 93 26 Mar 2025 415th pardouin 🇫🇷 687 57 3 Oct 2024 416th emgordon154 687 111 12 Jan 2025 417th NickTheEASDude 🇺🇸 686 115 17 Dec 2024 418th dtbao20 🇻🇳 686 117 1 Oct 2024 418th Pyroan 686 117 22 Feb 2025 418th andrewjc2000 686 117 3 days ago 421st MeWhenI 🇻🇦 684 68 2 Oct 2024 422nd error256 681 104 14 Oct 2024 423rd CatsAreFluffy 680 53 27 Dec 2024 424th elgan65536 680 118 2 Oct 2024 424th logvp 680 118 6 Oct 2024 424th ahmetdemirag 🇨🇾 680 118 6 Feb 2025 424th albanian-laundromat 680 118 14 Mar 2025 424th plcc0 680 118 6 Apr 2025 424th KatieLG 🇬🇧 680 118 20 days ago 430th madex 🇩🇪 678 103 2 Oct 2024 431st plcc0 676 37 6 Apr 2025 432nd the-zammers 675 163 1 Dec 2024 433rd Shanethegamer 🇺🇸 674 65 1 Oct 2024 434th jtaxen 674 119 21 Oct 2024 434th psbpsbp 674 119 19 Dec 2024 434th klixel 🇨🇦 674 119 9 Apr 2025 437th BlankSpruce 672 104 1 Oct 2024 438th aDwarfNamedUrist 671 164 16 Oct 2024 439th TaserTheFox 🇺🇸 669 120 8 Oct 2024 439th yokasuretsu 669 120 26 Jan 2025 439th Troon 669 120 17 Feb 2025 442nd error256 668 101 24 Oct 2024 443rd tailorspy 668 128 4 Oct 2024 444th jwhear 🇺🇸 666 197 1 Oct 2024 445th two-bad 🇬🇧 660 97 2 Oct 2024 446th rniii 659 106 2 Oct 2024 446th gastropner 659 106 11 Feb 2025 448th chartung17 658 122 24 Mar 2025 449th 4hg 🇺🇸 657 59 5 Oct 2024 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