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 721st CatsAreFluffy 509 127 17ms 30 Oct 2024 721st WillowWispy 509 127 11ms 25 May 2025 723rd Chinay-Domitrix 🇺🇸 509 131 2,397ms 30 Mar 2025 724th KatieLG 🇬🇧 509 146 10ms 2 Oct 2024 725th msbranicky 504 138 3ms 3 Oct 2024 726th snoozingnewt 🇨🇦 503 142 412ms 2 Nov 2025 727th madex 🇩🇪 501 129 21ms 2 Oct 2024 727th RedzGoose 🇦🇺 501 129 11ms 15 Oct 2024 727th calebaitken 501 129 10ms 11 Apr 2025 727th rollershutter 501 129 19ms 20 Nov 2025 731st blaztoma 🇱🇹 500 154 119ms 28 Nov 2025 732nd MeWhenI 🇻🇦 499 149 54ms 4 Oct 2024 733rd Europe2048 497 130 11ms 2 Oct 2024 733rd nstearns96 🇬🇧 497 130 17ms 2 Oct 2024 733rd Stockoh 🇫🇷 497 130 17ms 4 Jul 2025 736th inverseLorentz 🇦🇺 494 131 12ms 7 Oct 2024 736th sciencejiho 494 131 24ms 11 Feb 2025 736th Jaydosu 494 131 11ms 11 Apr 2025 736th Emutis 🇱🇹 494 131 10ms 11 Nov 2025 740th CarterStroik 493 161 2ms 19 Nov 2025 741st owen-c-parker 🇺🇸 492 131 11ms 1 Oct 2024 742nd HumanoidCPU 492 145 419ms 5 Oct 2024 743rd h-hh-hhh 🇺🇦 491 177 66ms 2 Nov 2024 744th snoozingnewt 🇨🇦 490 150 198ms 2 Nov 2025 745th snoozingnewt 🇨🇦 490 249 26ms 2 Nov 2025 746th jlangvand 489 141 1ms 15 Oct 2024 746th HumanoidCPU 489 141 1ms 7 Mar 2025 748th snoozingnewt 🇨🇦 486 117 1,338ms 2 Nov 2025 749th Mabeloid 🇳🇴 486 133 10ms 2 Oct 2024 750th mitzal 483 180 61ms 9 Feb 2025 751st snoozingnewt 🇨🇦 482 173 377ms 2 Nov 2025 752nd Mikey-Beep 🇬🇧 479 135 17ms 7 hours ago 753rd MiffOttah 476 150 428ms 6 Oct 2024 753rd mwarvik 🇳🇴 476 150 431ms 1 Jan 2026 755th sciencedjinn 475 136 10ms 8 Nov 2024 755th mchalunderscore 475 136 20ms 4 Jan 2025 755th Florian-Mt 475 136 17ms 5 Dec 2025 758th alphafalfa 472 92 2ms 8 Nov 2024 759th kurkale6ka 472 137 29ms 16 Oct 2024 759th 4ndyJ 🇬🇧 472 137 12ms 14 Nov 2024 759th wobblybits 472 137 18ms 17 Aug 2025 759th Andrey2001 472 137 16ms 1 Feb 2026 759th tomh1012 472 137 18ms 4 Mar 2026 759th Aquateraneal 🇺🇸 472 137 18ms 8 Mar 2026 765th luca1339 472 198 425ms 4 Nov 2024 766th ejini6969 470 102 38ms 14 Jun 2025 767th h-hh-hhh 🇺🇦 469 147 1ms 2 Nov 2024 768th snoozingnewt 🇨🇦 469 200 230ms 2 Nov 2025 769th snoozingnewt 🇨🇦 465 121 231ms 27 Nov 2025 770th iczelia 🇩🇪 462 94 2ms 23 Sep 2025 771st NanduBC 462 140 11ms 1 Oct 2024 771st jmerle 🇳🇱 462 140 10ms 10 Jan 2025 771st RobertHoeh 462 140 10ms 3 Mar 2025 771st smilesformiles3 462 140 18ms 12 Jun 2025 771st artem-aramma 462 140 16ms 18 Jun 2025 776th Jacob385 462 202 411ms 2 Oct 2024 777th madex 🇩🇪 461 104 37ms 2 Oct 2024 778th FranklinJiaChen 459 141 13ms 2 Oct 2024 779th TheZwierzLF 🇵🇱 456 105 37ms 8 Jan 2026 780th jbjd 456 151 2ms 4 Feb 2026 781st brimstonetrader 455 142 16ms 17 Oct 2024 781st codewrite 🇬🇧 455 142 12ms 5 May 2025 781st RobGLambert 455 142 19ms 8 Jun 2025 781st GodlyProgrammer1 455 142 18ms 22 Nov 2025 781st jbjd 455 142 11ms 4 Feb 2026 786th snoozingnewt 🇨🇦 455 149 5ms 2 Nov 2025 787th IISResetMe 453 103 583ms 27 Nov 2025 788th TheZwierzLF 🇵🇱 453 127 505ms 12 Dec 2025 789th snoozingnewt 🇨🇦 452 96 2ms 2 Nov 2025 790th GeneralFabian 452 143 10ms 9 Dec 2024 790th CutSandstone 452 143 11ms 30 Jan 2025 790th kistlerf 🇨🇭 452 143 17ms 19 May 2025 793rd dokutan 451 63 3ms 26 Nov 2024 794th snoozingnewt 🇨🇦 451 176 2ms 2 Nov 2025 795th hiichbindermax 449 144 19ms 2 Oct 2024 795th mathisfun271 449 144 12ms 14 Oct 2024 795th bob-th 449 144 11ms 22 Oct 2024 798th Andrey2001 446 129 549ms 1 Feb 2026 799th dokutan 445 109 10ms 19 Oct 2024 800th grey0ut 444 105 402ms 11 Jan 2025 First Prev 721–800 of 933 Next Last