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 376th MeWhenI 🇻🇦 725 111 2 Oct 2024 377th MeWhenI 🇻🇦 725 174 13 Feb 2025 378th Shanethegamer 🇺🇸 724 126 2 Oct 2024 379th SirBogman 🇺🇸 722 66 9 Oct 2024 380th CaedenHarper 🇨🇦 722 110 9 Oct 2024 380th cros107 722 110 1 Jan 2025 380th guilhem-roy 🇫🇷 722 110 29 May 2025 383rd dtbao20 🇻🇳 721 89 1 Oct 2024 383rd madeforlosers 721 89 17 Oct 2024 383rd junkondo-jp 721 89 14 Dec 2024 386th Shanethegamer 🇺🇸 721 156 2 Oct 2024 387th weeble 720 74 8 days ago 388th Shanethegamer 🇺🇸 719 112 3 Oct 2024 389th MeWhenI 🇻🇦 718 78 2 Oct 2024 390th voytxt 🇨🇿 718 89 17 Apr 2025 391st mousetail 🇳🇱 715 111 6 Oct 2024 392nd annaproxy 715 132 1 Oct 2024 393rd alexsave 713 90 28 Oct 2024 394th anter69 🇭🇺 711 67 1 Oct 2024 395th rzv-me 710 95 5 Oct 2024 396th OllieBoyne 🇬🇧 709 112 17 Oct 2024 396th WillConker 709 112 22 Oct 2024 396th maxgodfrey2004 🇨🇦 709 112 4 Jan 2025 396th albanian-laundromat 709 112 23 days ago 400th snyderek 🇺🇸 708 121 1 Oct 2024 401st Natanaelel 🇸🇪 707 55 1 Mar 2025 402nd MeWhenI 🇻🇦 704 73 3 Oct 2024 403rd MeWhenI 🇻🇦 704 115 5 Oct 2024 404th DialFrost 🇸🇬 704 132 8 Apr 2025 405th SB-945 703 113 1 Oct 2024 405th Artemis21 🇬🇧 703 113 23 Jan 2025 407th emgordon154 702 76 7 Jun 2025 408th janlelis 701 68 1 Oct 2024 409th cbrt-x 701 157 1 Oct 2024 410th mousetail 🇳🇱 699 133 3 Oct 2024 411th Alex-x90 🇺🇸 698 100 1 Oct 2024 412th LukeBridges 🇬🇧 697 92 3 Oct 2024 413th BlankSpruce 697 123 1 Oct 2024 414th HumanoidCPU 696 114 7 Mar 2025 415th Shanethegamer 🇺🇸 693 41 4 Oct 2024 416th emgordon154 693 134 25 Feb 2025 417th emgordon154 692 101 25 Nov 2024 418th albanian-laundromat 692 147 9 days ago 419th tobeannouncd 692 159 13 Dec 2024 420th Alex-x90 🇺🇸 691 124 1 Oct 2024 420th Herbert00709 🇵🇱 691 124 24 days ago 422nd Salutations45 690 93 17 Nov 2024 422nd strattonwhisler 690 93 26 Mar 2025 424th jipsong 🇩🇪 690 115 12 May 2025 425th pardouin 🇫🇷 687 57 3 Oct 2024 426th emgordon154 687 111 12 Jan 2025 427th MeWhenI 🇻🇦 686 68 2 Oct 2024 428th NickTheEASDude 🇺🇸 686 115 17 Dec 2024 429th Bmrl7 684 116 3 Oct 2024 429th rowechenzhong 684 116 17 Oct 2024 431st Lv0Sys 🇵🇱 683 94 24 days ago 432nd error256 681 104 14 Oct 2024 433rd CatsAreFluffy 680 53 27 Dec 2024 434th dtbao20 🇻🇳 679 117 1 Oct 2024 434th Pyroan 679 117 22 Feb 2025 436th madex 🇩🇪 678 103 2 Oct 2024 437th plcc0 676 37 6 Apr 2025 438th Shanethegamer 🇺🇸 676 65 1 Oct 2024 439th the-zammers 675 163 1 Dec 2024 440th MeWhenI 🇻🇦 673 108 2 Oct 2024 441st elgan65536 673 118 2 Oct 2024 441st logvp 673 118 6 Oct 2024 441st ahmetdemirag 🇨🇾 673 118 6 Feb 2025 441st plcc0 673 118 6 Apr 2025 441st KatieLG 🇬🇧 673 118 20 Apr 2025 446th BlankSpruce 672 104 1 Oct 2024 447th edsrzf 🇳🇿 671 99 4 days ago 448th aDwarfNamedUrist 671 164 16 Oct 2024 449th tailorspy 669 128 4 Oct 2024 450th error256 668 101 24 Oct 2024 Prev 376–450 of 709 Next