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 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 Chars Time 376th Bulmenisaurus 692 93 6 Oct 2024 376th lynn 692 93 8 Jan 2025 378th emgordon154 692 101 25 Nov 2024 379th tobeannouncd 692 159 13 Dec 2024 380th Alex-x90 🇺🇸 691 124 1 Oct 2024 380th Herbert00709 🇵🇱 691 124 2 hours ago 382nd xyangst 689 93 1 Oct 2024 382nd Salutations45 689 93 17 Nov 2024 382nd strattonwhisler 689 93 26 Mar 2025 385th Shanethegamer 🇺🇸 688 83 5 Oct 2024 386th MeWhenI 🇻🇦 688 174 13 Feb 2025 387th pardouin 🇫🇷 687 57 3 Oct 2024 388th emgordon154 687 111 12 Jan 2025 389th NickTheEASDude 🇺🇸 686 115 17 Dec 2024 390th DialFrost 🇸🇬 685 94 1 Oct 2024 391st MeWhenI 🇻🇦 684 68 2 Oct 2024 392nd error256 681 104 14 Oct 2024 393rd ovs-code 🇩🇪 680 84 3 Oct 2024 394th madex 🇩🇪 679 103 2 Oct 2024 395th plcc0 676 37 6 Apr 2025 396th the-zammers 675 163 1 Dec 2024 397th Shanethegamer 🇺🇸 674 65 1 Oct 2024 398th MeWhenI 🇻🇦 673 108 2 Oct 2024 399th BlankSpruce 672 104 1 Oct 2024 400th aDwarfNamedUrist 671 164 16 Oct 2024 401st snoozingnewt 🇺🇸 670 96 31 Mar 2025 402nd tailorspy 669 128 4 Oct 2024 403rd error256 668 101 24 Oct 2024 404th HumanoidCPU 667 96 7 Mar 2025 405th Herbert00709 🇵🇱 666 105 2 hours ago 406th jwhear 🇺🇸 666 197 1 Oct 2024 407th two-bad 🇬🇧 660 97 2 Oct 2024 408th rniii 660 106 2 Oct 2024 408th gastropner 660 106 11 Feb 2025 410th 4hg 🇺🇸 657 59 5 Oct 2024 411th MeWhenI 🇻🇦 657 88 2 Oct 2024 411th Shanethegamer 🇺🇸 657 88 5 Oct 2024 413th MeWhenI 🇻🇦 657 98 1 Oct 2024 413th GolfingSuccess 🇬🇷 657 98 5 Oct 2024 413th firegene 🇮🇪 657 98 21 Oct 2024 413th JunkIce 657 98 3 Dec 2024 417th dbut2 🇦🇺 656 179 31 Oct 2024 418th Ripick 655 135 23 Mar 2025 419th BambooleanLogic 🇸🇪 654 98 21 Oct 2024 420th error256 654 142 14 days ago 421st DialFrost 🇸🇬 653 67 22 Dec 2024 422nd RyanMHsiao 652 201 1 Oct 2024 423rd voytxt 🇨🇿 650 89 17 Apr 2025 424th SirBogman 🇺🇸 650 99 8 Oct 2024 425th MeWhenI 🇻🇦 649 88 2 Oct 2024 426th rucin93 🇵🇱 645 144 28 Oct 2024 427th FlorianCassayre 🇫🇷 644 100 1 Oct 2024 427th bzijlema 🇳🇱 644 100 10 Oct 2024 427th bricknellj 644 100 4 Mar 2025 430th bac0id 644 180 9 Jan 2025 431st w911 642 183 7 Oct 2024 432nd Antibrain0 641 123 8 Nov 2024 433rd stefangimmillaro 638 73 1 Oct 2024 434th btjones0 637 101 2 Dec 2024 435th Jonatan6 🇩🇰 636 110 24 Oct 2024 436th elgan65536 636 146 2 Oct 2024 437th CaedenHarper 🇨🇦 635 185 3 Jan 2025 438th yoshykai 633 183 12 Apr 2025 439th annaproxy 631 102 1 Oct 2024 439th xyangst 631 102 1 Oct 2024 441st Shanethegamer 🇺🇸 629 74 16 Oct 2024 442nd dokutan 628 91 19 Oct 2024 443rd AlephSquirrel 625 40 1 Oct 2024 444th ryyyn 🇺🇸 625 103 8 Jan 2025 445th msbranicky 625 188 7 Jan 2025 446th albanian-laundromat 624 163 4 days ago 447th tomh1012 621 114 17 Oct 2024 448th dokutan 621 127 10 Dec 2024 449th DialFrost 🇸🇬 621 307 22 Apr 2025 450th BalaM314 616 104 4 Feb 2025 Prev 376–450 of 680 Next