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 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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> 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 ALGOL 68 APL ArkScript 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 ><> 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 ALGOL 68 APL ArkScript 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 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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 718th wobblybits 472 137 19ms 17 Aug 2025 718th Andrey2001 472 137 9ms 19 days ago 723rd luca1339 472 198 425ms 4 Nov 2024 724th ejini6969 469 102 37ms 14 Jun 2025 725th h-hh-hhh 🇺🇦 468 147 1ms 2 Nov 2024 726th snoozingnewt 🇨🇦 466 200 217ms 2 Nov 2025 727th scpchicken 🇵🇼 465 139 17ms 6 Oct 2024 727th tomh1012 465 139 19ms 16 Jan 2026 729th snoozingnewt 🇨🇦 464 121 229ms 27 Nov 2025 730th iczelia 🇩🇪 462 94 2ms 23 Sep 2025 731st NanduBC 462 140 9ms 1 Oct 2024 731st jmerle 🇳🇱 462 140 10ms 10 Jan 2025 731st RobertHoeh 462 140 11ms 3 Mar 2025 731st smilesformiles3 462 140 17ms 12 Jun 2025 731st artem-aramma 462 140 18ms 18 Jun 2025 736th Jacob385 462 202 418ms 2 Oct 2024 737th madex 🇩🇪 460 104 37ms 2 Oct 2024 738th FranklinJiaChen 458 141 10ms 2 Oct 2024 739th TheZwierzLF 🇵🇱 456 105 38ms 8 Jan 2026 740th jbjd 456 151 2ms 17 days ago 741st brimstonetrader 455 142 11ms 17 Oct 2024 741st codewrite 🇬🇧 455 142 10ms 5 May 2025 741st RobGLambert 455 142 17ms 8 Jun 2025 741st GodlyProgrammer1 455 142 18ms 22 Nov 2025 741st jbjd 455 142 11ms 17 days ago 746th snoozingnewt 🇨🇦 455 149 4ms 2 Nov 2025 747th IISResetMe 453 103 486ms 27 Nov 2025 748th TheZwierzLF 🇵🇱 453 127 507ms 12 Dec 2025 749th snoozingnewt 🇨🇦 452 96 2ms 2 Nov 2025 750th GeneralFabian 452 143 10ms 9 Dec 2024 750th CutSandstone 452 143 10ms 30 Jan 2025 750th kistlerf 🇨🇭 452 143 17ms 19 May 2025 753rd dokutan 451 63 3ms 26 Nov 2024 754th snoozingnewt 🇨🇦 451 176 2ms 2 Nov 2025 755th hiichbindermax 449 144 17ms 2 Oct 2024 755th mathisfun271 449 144 10ms 14 Oct 2024 755th bob-th 449 144 10ms 22 Oct 2024 758th Andrey2001 446 129 525ms 19 days ago 759th denkyuu1 446 145 17ms 9 days ago 760th dokutan 445 109 10ms 19 Oct 2024 761st grey0ut 444 105 472ms 11 Jan 2025 762nd croc54 443 146 10ms 15 Dec 2024 763rd MyXoToD 🇩🇪 441 146 11ms 26 May 2025 764th PyryL 🇫🇮 440 147 10ms 1 Mar 2025 765th Yewzir 🇧🇪 440 171 13ms 26 Dec 2024 766th mbittner20 437 148 10ms 13 Oct 2024 766th YAJUE114514 437 148 10ms 12 Dec 2025 768th varhammer 🇷🇺 435 223 11ms 23 Feb 2025 769th psaban 434 149 15ms 31 Jul 2025 769th TheZwierzLF 🇵🇱 434 149 11ms 24 Nov 2025 771st Mabeloid 🇳🇴 433 133 538ms 2 Oct 2024 772nd KatieLG 🇬🇧 433 183 2ms 2 Oct 2025 773rd dokutan 432 130 289ms 17 Oct 2024 774th KatieLG 🇬🇧 431 108 6ms 13 Oct 2024 775th snoozingnewt 🇨🇦 431 111 38ms 2 Nov 2025 776th jameswmccarty 431 150 10ms 5 Oct 2024 776th yousefalizadeh 431 150 10ms 23 Oct 2024 776th feherd 431 150 11ms 31 Oct 2024 776th kadamkaustubh 431 150 10ms 8 Nov 2025 780th adamnielson42 🇺🇸 425 152 10ms 6 Oct 2024 780th voidgloom 425 152 10ms 22 Oct 2024 780th omero-san 425 152 10ms 22 Sep 2025 780th brochmann 🇸🇪 425 152 10ms 12 Oct 2025 784th MeWhenI 🇻🇦 424 143 6ms 2 Oct 2024 785th JOrE20 423 136 1,020ms 7 Dec 2025 786th denisfouchard 422 153 10ms 21 Aug 2025 787th osNiko 🇧🇷 420 154 9ms 21 Aug 2025 788th celiendonze 🇨🇭 417 155 10ms 17 Oct 2025 789th Arkadios200 417 196 98ms 21 Oct 2025 790th Shotokhan 414 156 10ms 21 Sep 2025 791st lhulinsky 412 157 10ms 21 Oct 2024 792nd snoozingnewt 🇨🇦 411 267 29ms 18 Dec 2025 793rd ThatAlo 409 158 10ms 9 Dec 2024 794th webmiche 406 159 11ms 3 Nov 2025 795th Mabeloid 🇳🇴 405 159 10ms 12 Oct 2024 796th CheeseCake628 🇳🇴 404 160 104ms 5 Nov 2024 797th snoozingnewt 🇨🇦 404 223 82ms 2 Nov 2025 798th pres-abhisheksinha 401 161 10ms 8 Oct 2024 799th aksyristos 400 172 2ms 23 Nov 2025 800th ibixina 399 162 11ms 13 Oct 2024 First Prev 721–800 of 891 Next Last