Card Number Validation in all languages in chars. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve 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 Minesweeper Morse Decoder Morse Encoder Multitap Input 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 Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve 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 Minesweeper Morse Decoder Morse Encoder Multitap Input 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 Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 561st Shanethegamer 🇺🇸 631 74 231ms 16 Oct 2024 562nd albanian-laundromat 🇺🇸 631 264 1,435ms 3 Nov 2025 563rd robin-scragg 628 103 12ms 21 Aug 2025 564th DialFrost 🇸🇬 627 304 153ms 13 Aug 2025 565th Jonatan6 🇩🇰 626 110 2ms 24 Oct 2024 566th AlephSquirrel 625 40 43ms 1 Oct 2024 567th dokutan 624 127 2ms 10 Dec 2024 568th BalaM314 620 104 12ms 4 Feb 2025 568th acollett89 620 104 11ms 15 Jul 2025 570th codereport 🇨🇦 619 63 33ms 2 Oct 2024 571st SirBogman 🇺🇸 619 93 529ms 23 Jul 2025 572nd MarcMush 🇫🇷 618 91 813ms 8 Oct 2024 573rd Ripick 617 135 366ms 23 Mar 2025 574th fourth-bit 616 105 18ms 1 Oct 2024 574th jared-hughes 616 105 17ms 3 Oct 2024 574th mattyhempstead 616 105 28ms 7 Oct 2024 577th bac0id 616 141 461ms 10 Jan 2025 578th olleicua 🇺🇸 614 78 35ms 18 Oct 2024 579th evnu 612 147 87ms 12 Oct 2025 580th davecame 610 106 18ms 1 Oct 2024 580th starfihs 610 106 11ms 2 Oct 2024 580th rschwa6308 🇺🇸 610 106 19ms 28 Oct 2024 580th snydej 610 106 20ms 21 Nov 2024 580th andrewjc2000 610 106 19ms 17 Jul 2025 580th travisdoesmath 610 106 18ms 7 Sep 2025 586th not-a-pokemon 610 113 1ms 23 Jul 2025 587th Seanharrs 🇦🇺 610 117 434ms 15 Nov 2024 588th Shanethegamer 🇺🇸 610 154 148ms 3 Oct 2024 589th kaascevich 609 134 124ms 9 Jul 2025 590th daveberlin 608 106 9ms 27 Jun 2025 591st alemelis 605 93 467ms 1 Oct 2024 592nd jupj 🇫🇮 605 114 2ms 20 Jul 2025 593rd commandz0 🇺🇸 604 107 19ms 7 Oct 2024 593rd zbreit 🇺🇸 604 107 18ms 29 Oct 2024 593rd StardustGogeta 604 107 17ms 30 Oct 2024 593rd ZakkkkAttackkkk 🇵🇭 604 107 19ms 8 Feb 2025 593rd InigoK 🇺🇸 604 107 19ms 22 Sep 2025 593rd Lv0Sys 🇵🇱 604 107 19ms 22 Feb 2026 599th albanian-laundromat 🇺🇸 603 72 1ms 25 Feb 2026 600th neihousaigaai 599 108 19ms 4 Oct 2024 600th StefanHabel 🇨🇦 599 108 20ms 23 Jan 2025 600th CaedenHarper 🇨🇦 599 108 18ms 22 Jul 2025 603rd dokutan 598 116 2ms 19 Nov 2025 604th MeWhenI 🇻🇦 597 98 7ms 1 Oct 2024 605th tomh1012 597 108 10ms 12 Mar 2026 606th SirBogman 🇺🇸 595 64 152ms 11 Jul 2025 607th MeWhenI 🇻🇦 595 73 2ms 2 Oct 2024 608th arcpolaris 595 120 376ms 28 Jan 2025 609th denkyuu1 591 81 35ms 7 days ago 610th DialFrost 🇸🇬 589 67 8ms 25 Jan 2025 611th roguh 🇬🇹 589 117 1ms 13 Oct 2024 611th iczelia 🇩🇪 589 117 2ms 25 Sep 2025 613th dokutan 588 98 1,200ms 27 days ago 614th cros107 🇦🇺 588 110 18ms 1 Jan 2025 614th guilhem-roy 🇫🇷 588 110 19ms 29 May 2025 616th JunkIce 587 98 459ms 3 Dec 2024 616th commandz0 🇺🇸 587 98 508ms 1 Sep 2025 618th Schmitt-Very-Cool 587 159 445ms 26 Sep 2025 619th dokutan 587 174 5ms 21 Feb 2025 620th gigaprofisi 🇺🇸 586 110 13ms 11 Aug 2025 620th denkyuu1 586 110 11ms 5 days ago 622nd amazingalek 🇳🇴 585 122 468ms 1 Jan 2026 623rd mousetail 🇳🇱 582 111 20ms 6 Oct 2024 624th CaedenHarper 🇨🇦 581 99 484ms 8 Mar 2026 625th emgordon154 580 49 3ms 9 Dec 2025 626th michelebastione 🇮🇹 580 123 427ms 26 Aug 2025 627th bac0id 579 119 2ms 10 Jan 2025 628th MeWhenI 🇻🇦 578 111 89ms 2 Oct 2024 629th OllieBoyne 🇬🇧 577 112 19ms 17 Oct 2024 629th WillConker 577 112 11ms 22 Oct 2024 629th maxgodfrey2004 🇨🇦 577 112 10ms 4 Jan 2025 632nd 823126 576 112 10ms 13 Nov 2024 632nd snoozingnewt 🇨🇦 576 112 10ms 2 Nov 2025 634th MeWhenI 🇻🇦 576 331 15ms 2 Oct 2024 635th KatieLG 🇬🇧 574 99 1,368ms 1 Oct 2024 636th MeWhenI 🇻🇦 572 164 205ms 6 Oct 2024 637th Mabeloid 🇳🇴 570 121 1ms 21 Oct 2025 638th janAkali 🇷🇺 567 147 355ms 10 Mar 2026 639th jipsong 🇩🇪 562 115 18ms 12 May 2025 640th aliakseikalosha 562 127 420ms 10 Oct 2024 First Prev 561–640 of 929 Next Last