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 376th dtbao20 🇻🇳 720 89 1 Oct 2024 376th madeforlosers 720 89 17 Oct 2024 376th junkondo-jp 720 89 14 Dec 2024 379th MeWhenI 🇻🇦 718 78 2 Oct 2024 380th voytxt 🇨🇿 716 89 17 Apr 2025 381st mousetail 🇳🇱 715 111 6 Oct 2024 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 OllieBoyne 🇬🇧 709 112 17 Oct 2024 387th WillConker 709 112 22 Oct 2024 387th maxgodfrey2004 🇨🇦 709 112 4 Jan 2025 387th albanian-laundromat 709 112 3 days ago 391st snyderek 🇺🇸 708 121 1 Oct 2024 392nd Natanaelel 🇸🇪 705 55 1 Mar 2025 393rd MeWhenI 🇻🇦 704 73 3 Oct 2024 394th MeWhenI 🇻🇦 704 115 5 Oct 2024 395th DialFrost 🇸🇬 704 132 8 Apr 2025 396th SB-945 702 113 1 Oct 2024 396th Artemis21 🇬🇧 702 113 23 Jan 2025 398th janlelis 701 68 1 Oct 2024 399th cbrt-x 701 157 1 Oct 2024 400th Alex-x90 🇺🇸 699 100 1 Oct 2024 401st mousetail 🇳🇱 699 133 3 Oct 2024 402nd emgordon154 697 76 12 days ago 403rd LukeBridges 🇬🇧 697 92 3 Oct 2024 404th BlankSpruce 697 123 1 Oct 2024 405th HumanoidCPU 696 114 7 Mar 2025 406th Shanethegamer 🇺🇸 693 41 4 Oct 2024 407th emgordon154 693 134 25 Feb 2025 408th emgordon154 692 101 25 Nov 2024 409th tobeannouncd 692 159 13 Dec 2024 410th Alex-x90 🇺🇸 691 124 1 Oct 2024 410th Herbert00709 🇵🇱 691 124 5 days ago 412th jipsong 🇩🇪 690 115 12 May 2025 413th Salutations45 689 93 17 Nov 2024 413th strattonwhisler 689 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 MeWhenI 🇻🇦 684 68 2 Oct 2024 419th Bmrl7 684 116 3 Oct 2024 419th rowechenzhong 684 116 17 Oct 2024 421st Lv0Sys 🇵🇱 682 94 4 days ago 422nd error256 681 104 14 Oct 2024 423rd CatsAreFluffy 680 53 27 Dec 2024 424th madex 🇩🇪 679 103 2 Oct 2024 425th dtbao20 🇻🇳 678 117 1 Oct 2024 425th Pyroan 678 117 22 Feb 2025 425th andrewjc2000 678 117 6 May 2025 428th plcc0 676 37 6 Apr 2025 429th the-zammers 675 163 1 Dec 2024 430th Shanethegamer 🇺🇸 674 65 1 Oct 2024 431st MeWhenI 🇻🇦 673 108 2 Oct 2024 432nd elgan65536 673 118 2 Oct 2024 432nd logvp 673 118 6 Oct 2024 432nd ahmetdemirag 🇨🇾 673 118 6 Feb 2025 432nd plcc0 673 118 6 Apr 2025 432nd KatieLG 🇬🇧 673 118 20 Apr 2025 437th BlankSpruce 672 104 1 Oct 2024 438th aDwarfNamedUrist 671 164 16 Oct 2024 439th tailorspy 669 128 4 Oct 2024 440th error256 668 101 24 Oct 2024 441st jtaxen 667 119 21 Oct 2024 441st psbpsbp 667 119 19 Dec 2024 441st klixel 🇨🇦 667 119 9 Apr 2025 444th Herbert00709 🇵🇱 666 105 5 days ago 445th jwhear 🇺🇸 666 197 1 Oct 2024 446th two-bad 🇬🇧 661 97 2 Oct 2024 447th TaserTheFox 🇺🇸 661 120 8 Oct 2024 447th yokasuretsu 661 120 26 Jan 2025 447th Troon 661 120 17 Feb 2025 447th keelimeguy 🇺🇸 661 120 5 days ago Prev 376–450 of 688 Next