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 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 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 Polygon Triangulations QR Encoder Quadratic Formula 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 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 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 Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 374th junkondo-jp 720 89 14 Dec 2024 377th MeWhenI 🇻🇦 718 78 2 Oct 2024 378th OllieBoyne 🇬🇧 717 112 17 Oct 2024 378th WillConker 717 112 22 Oct 2024 378th maxgodfrey2004 🇨🇦 717 112 4 Jan 2025 381st voytxt 🇨🇿 716 89 17 Apr 2025 382nd annaproxy 715 132 1 Oct 2024 383rd Shanethegamer 🇺🇸 714 112 3 Oct 2024 384th alexsave 712 90 28 Oct 2024 385th anter69 🇭🇺 711 67 1 Oct 2024 386th rzv-me 710 95 5 Oct 2024 387th SB-945 710 113 1 Oct 2024 387th Artemis21 🇬🇧 710 113 23 Jan 2025 389th Natanaelel 🇸🇪 705 55 1 Mar 2025 390th snyderek 🇺🇸 705 121 1 Oct 2024 391st MeWhenI 🇻🇦 704 73 3 Oct 2024 392nd HumanoidCPU 704 114 7 Mar 2025 393rd MeWhenI 🇻🇦 704 115 5 Oct 2024 394th DialFrost 🇸🇬 702 132 8 Apr 2025 395th cbrt-x 701 157 1 Oct 2024 396th janlelis 700 68 1 Oct 2024 397th Alex-x90 🇺🇸 698 100 1 Oct 2024 398th jipsong 🇩🇪 698 115 24 days ago 399th mousetail 🇳🇱 697 133 3 Oct 2024 400th LukeBridges 🇬🇧 696 92 3 Oct 2024 401st Shanethegamer 🇺🇸 693 41 4 Oct 2024 402nd BlankSpruce 693 123 1 Oct 2024 403rd emgordon154 692 101 25 Nov 2024 404th Bmrl7 692 116 3 Oct 2024 404th rowechenzhong 692 116 17 Oct 2024 406th emgordon154 692 134 25 Feb 2025 407th tobeannouncd 692 159 13 Dec 2024 408th Salutations45 689 93 17 Nov 2024 408th strattonwhisler 689 93 26 Mar 2025 410th Alex-x90 🇺🇸 688 124 1 Oct 2024 411th pardouin 🇫🇷 687 57 3 Oct 2024 412th emgordon154 687 111 12 Jan 2025 413th NickTheEASDude 🇺🇸 686 115 17 Dec 2024 414th dtbao20 🇻🇳 686 117 1 Oct 2024 414th Pyroan 686 117 22 Feb 2025 414th andrewjc2000 686 117 6 May 2025 417th MeWhenI 🇻🇦 684 68 2 Oct 2024 418th error256 681 104 14 Oct 2024 419th CatsAreFluffy 680 53 27 Dec 2024 420th elgan65536 680 118 2 Oct 2024 420th logvp 680 118 6 Oct 2024 420th ahmetdemirag 🇨🇾 680 118 6 Feb 2025 420th albanian-laundromat 680 118 14 Mar 2025 420th plcc0 680 118 6 Apr 2025 420th KatieLG 🇬🇧 680 118 20 Apr 2025 426th madex 🇩🇪 678 103 2 Oct 2024 427th plcc0 676 37 6 Apr 2025 428th the-zammers 675 163 1 Dec 2024 429th Shanethegamer 🇺🇸 674 65 1 Oct 2024 430th emgordon154 674 78 2 Oct 2024 431st jtaxen 674 119 21 Oct 2024 431st psbpsbp 674 119 19 Dec 2024 431st klixel 🇨🇦 674 119 9 Apr 2025 434th MeWhenI 🇻🇦 673 108 2 Oct 2024 435th BlankSpruce 672 104 1 Oct 2024 436th aDwarfNamedUrist 671 164 16 Oct 2024 437th TaserTheFox 🇺🇸 669 120 8 Oct 2024 437th yokasuretsu 669 120 26 Jan 2025 437th Troon 669 120 17 Feb 2025 440th error256 668 101 24 Oct 2024 441st tailorspy 666 128 4 Oct 2024 442nd jwhear 🇺🇸 666 197 1 Oct 2024 443rd two-bad 🇬🇧 660 97 2 Oct 2024 444th rniii 659 106 2 Oct 2024 444th gastropner 659 106 11 Feb 2025 446th chartung17 658 122 24 Mar 2025 447th 4hg 🇺🇸 657 59 5 Oct 2024 448th dbut2 🇦🇺 656 179 31 Oct 2024 449th Ripick 655 135 23 Mar 2025 450th xyangst 654 98 15 Oct 2024 Prev 376–450 of 671 Next