Card Number Validation in all languages in chars. 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 Chars Time 376th BlankSpruce 697 123 1 Oct 2024 377th Shanethegamer 🇺🇸 696 172 2 Oct 2024 378th Shanethegamer 🇺🇸 693 41 4 Oct 2024 379th emgordon154 693 134 25 Feb 2025 380th Bulmenisaurus 692 93 6 Oct 2024 380th lynn 692 93 8 Jan 2025 382nd emgordon154 692 101 25 Nov 2024 383rd albanian-laundromat 692 147 13 hours ago 384th tobeannouncd 692 159 13 Dec 2024 385th Alex-x90 🇺🇸 691 124 1 Oct 2024 385th Herbert00709 🇵🇱 691 124 16 days ago 387th xyangst 690 93 1 Oct 2024 387th Salutations45 690 93 17 Nov 2024 387th strattonwhisler 690 93 26 Mar 2025 390th Shanethegamer 🇺🇸 688 83 5 Oct 2024 391st MeWhenI 🇻🇦 688 174 13 Feb 2025 392nd pardouin 🇫🇷 687 57 3 Oct 2024 393rd emgordon154 687 111 12 Jan 2025 394th NickTheEASDude 🇺🇸 686 115 17 Dec 2024 395th DialFrost 🇸🇬 685 94 1 Oct 2024 396th MeWhenI 🇻🇦 684 68 2 Oct 2024 397th Lv0Sys 🇵🇱 682 94 15 days ago 398th error256 681 104 14 Oct 2024 399th ovs-code 🇩🇪 680 84 3 Oct 2024 400th madex 🇩🇪 679 103 2 Oct 2024 401st plcc0 676 37 6 Apr 2025 402nd the-zammers 675 163 1 Dec 2024 403rd Shanethegamer 🇺🇸 674 65 1 Oct 2024 404th MeWhenI 🇻🇦 673 108 2 Oct 2024 405th BlankSpruce 672 104 1 Oct 2024 406th snoozingnewt 🇺🇸 671 96 31 Mar 2025 406th KasperKivimaeki 🇫🇮 671 96 39 mins ago 408th aDwarfNamedUrist 671 164 16 Oct 2024 409th tailorspy 669 128 4 Oct 2024 410th HumanoidCPU 668 96 7 Mar 2025 411th error256 668 101 24 Oct 2024 412th Herbert00709 🇵🇱 666 105 16 days ago 413th jwhear 🇺🇸 666 197 1 Oct 2024 414th two-bad 🇬🇧 661 97 2 Oct 2024 415th rniii 660 106 2 Oct 2024 415th gastropner 660 106 11 Feb 2025 417th MeWhenI 🇻🇦 659 88 2 Oct 2024 417th Shanethegamer 🇺🇸 659 88 5 Oct 2024 419th dbut2 🇦🇺 658 179 31 Oct 2024 420th 4hg 🇺🇸 657 59 5 Oct 2024 421st MeWhenI 🇻🇦 657 98 1 Oct 2024 421st GolfingSuccess 🇬🇷 657 98 5 Oct 2024 421st firegene 🇮🇪 657 98 21 Oct 2024 421st JunkIce 657 98 3 Dec 2024 425th Ripick 655 135 23 Mar 2025 426th BambooleanLogic 🇸🇪 654 98 21 Oct 2024 427th error256 654 142 31 May 2025 428th DialFrost 🇸🇬 653 67 22 Dec 2024 429th RyanMHsiao 652 201 1 Oct 2024 430th voytxt 🇨🇿 651 89 17 Apr 2025 430th dokutan 651 89 2 days ago 432nd SirBogman 🇺🇸 650 99 8 Oct 2024 433rd MeWhenI 🇻🇦 649 88 2 Oct 2024 434th dokutan 648 99 2 days ago 435th rucin93 🇵🇱 645 144 28 Oct 2024 436th bac0id 645 180 9 Jan 2025 437th FlorianCassayre 🇫🇷 644 100 1 Oct 2024 437th bzijlema 🇳🇱 644 100 10 Oct 2024 437th bricknellj 644 100 4 Mar 2025 440th w911 644 183 7 Oct 2024 441st Antibrain0 641 123 8 Nov 2024 442nd stefangimmillaro 638 73 1 Oct 2024 443rd btjones0 638 101 2 Dec 2024 444th CaedenHarper 🇨🇦 637 185 3 Jan 2025 445th Jonatan6 🇩🇰 636 110 24 Oct 2024 446th elgan65536 636 146 2 Oct 2024 447th yoshykai 635 183 12 Apr 2025 448th annaproxy 631 102 1 Oct 2024 448th xyangst 631 102 1 Oct 2024 450th Shanethegamer 🇺🇸 629 74 16 Oct 2024 Prev 376–450 of 695 Next