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 Mandelbrot 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 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 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 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 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 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 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 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 guilhem-roy 🇫🇷 722 110 29 May 2025 377th dtbao20 🇻🇳 721 89 1 Oct 2024 377th madeforlosers 721 89 17 Oct 2024 377th junkondo-jp 721 89 14 Dec 2024 380th MeWhenI 🇻🇦 721 111 2 Oct 2024 381st Shanethegamer 🇺🇸 721 156 2 Oct 2024 382nd weeble 720 74 29 hours ago 383rd MeWhenI 🇻🇦 718 78 2 Oct 2024 384th voytxt 🇨🇿 718 89 17 Apr 2025 385th mousetail 🇳🇱 715 111 6 Oct 2024 385th GrayJoKing 🇦🇺 715 111 94 mins ago 387th annaproxy 715 132 1 Oct 2024 388th Shanethegamer 🇺🇸 714 112 3 Oct 2024 389th alexsave 713 90 28 Oct 2024 390th anter69 🇭🇺 711 67 1 Oct 2024 391st rzv-me 710 95 5 Oct 2024 392nd OllieBoyne 🇬🇧 709 112 17 Oct 2024 392nd WillConker 709 112 22 Oct 2024 392nd maxgodfrey2004 🇨🇦 709 112 4 Jan 2025 392nd albanian-laundromat 709 112 15 days ago 396th snyderek 🇺🇸 708 121 1 Oct 2024 397th Natanaelel 🇸🇪 705 55 1 Mar 2025 398th MeWhenI 🇻🇦 704 73 3 Oct 2024 399th MeWhenI 🇻🇦 704 115 5 Oct 2024 400th DialFrost 🇸🇬 704 132 8 Apr 2025 401st SB-945 703 113 1 Oct 2024 401st Artemis21 🇬🇧 703 113 23 Jan 2025 403rd emgordon154 702 76 25 days ago 404th janlelis 701 68 1 Oct 2024 405th cbrt-x 701 157 1 Oct 2024 406th Alex-x90 🇺🇸 699 100 1 Oct 2024 407th mousetail 🇳🇱 699 133 3 Oct 2024 408th LukeBridges 🇬🇧 697 92 3 Oct 2024 409th BlankSpruce 697 123 1 Oct 2024 410th HumanoidCPU 696 114 7 Mar 2025 411th Shanethegamer 🇺🇸 693 41 4 Oct 2024 412th emgordon154 693 134 25 Feb 2025 413th emgordon154 692 101 25 Nov 2024 414th albanian-laundromat 692 147 36 hours ago 415th tobeannouncd 692 159 13 Dec 2024 416th Alex-x90 🇺🇸 691 124 1 Oct 2024 416th Herbert00709 🇵🇱 691 124 17 days ago 418th Salutations45 690 93 17 Nov 2024 418th strattonwhisler 690 93 26 Mar 2025 420th jipsong 🇩🇪 690 115 12 May 2025 421st pardouin 🇫🇷 687 57 3 Oct 2024 422nd emgordon154 687 111 12 Jan 2025 423rd NickTheEASDude 🇺🇸 686 115 17 Dec 2024 424th MeWhenI 🇻🇦 684 68 2 Oct 2024 425th Bmrl7 684 116 3 Oct 2024 425th rowechenzhong 684 116 17 Oct 2024 427th Lv0Sys 🇵🇱 682 94 16 days ago 428th error256 681 104 14 Oct 2024 429th CatsAreFluffy 680 53 27 Dec 2024 430th madex 🇩🇪 679 103 2 Oct 2024 431st dtbao20 🇻🇳 679 117 1 Oct 2024 431st Pyroan 679 117 22 Feb 2025 431st andrewjc2000 679 117 6 May 2025 434th plcc0 676 37 6 Apr 2025 435th Shanethegamer 🇺🇸 676 65 1 Oct 2024 436th the-zammers 675 163 1 Dec 2024 437th MeWhenI 🇻🇦 673 108 2 Oct 2024 438th elgan65536 673 118 2 Oct 2024 438th logvp 673 118 6 Oct 2024 438th ahmetdemirag 🇨🇾 673 118 6 Feb 2025 438th plcc0 673 118 6 Apr 2025 438th KatieLG 🇬🇧 673 118 20 Apr 2025 443rd BlankSpruce 672 104 1 Oct 2024 444th aDwarfNamedUrist 671 164 16 Oct 2024 445th tailorspy 669 128 4 Oct 2024 446th error256 668 101 24 Oct 2024 447th jtaxen 667 119 21 Oct 2024 447th psbpsbp 667 119 19 Dec 2024 447th klixel 🇨🇦 667 119 9 Apr 2025 450th Herbert00709 🇵🇱 666 105 17 days ago Prev 376–450 of 700 Next