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 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 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 QR Encoder Quadratic Formula Scrambled Alphabetization 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 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 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 QR Encoder Quadratic Formula Scrambled Alphabetization Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 450th jared-hughes 612 105 3 Oct 2024 450th mattyhempstead 612 105 7 Oct 2024 453rd Shanethegamer 🇺🇸 612 154 3 Oct 2024 454th olleicua 🇺🇸 611 78 18 Oct 2024 455th emgordon154 609 156 13 Dec 2024 456th davecame 607 106 1 Oct 2024 456th starfihs 607 106 2 Oct 2024 456th rschwa6308 🇺🇸 607 106 28 Oct 2024 456th snydej 607 106 21 Nov 2024 460th bac0id 606 141 10 Jan 2025 461st Seanharrs 605 117 15 Nov 2024 462nd Shanethegamer 🇺🇸 604 217 4 Oct 2024 463rd alemelis 602 93 1 Oct 2024 464th commandblockguy 🇺🇸 601 107 7 Oct 2024 464th zbreit 🇺🇸 601 107 29 Oct 2024 464th StardustGogeta 601 107 30 Oct 2024 464th ZakkkkAttackkkk 🇵🇭 601 107 8 Feb 2025 468th MeWhenI 🇻🇦 600 73 2 Oct 2024 469th MeWhenI 🇻🇦 597 98 1 Oct 2024 470th roguh 🇬🇹 597 117 13 Oct 2024 471st dokutan 596 117 3 Oct 2024 472nd neihousaigaai 595 108 4 Oct 2024 472nd StefanHabel 🇨🇦 595 108 23 Jan 2025 474th ravnskjaer 🇩🇰 594 195 20 Dec 2024 475th arcpolaris 590 120 28 Jan 2025 476th edsrzf 🇳🇿 588 113 26 Oct 2024 477th bac0id 587 119 10 Jan 2025 478th DialFrost 🇸🇬 585 67 25 Jan 2025 479th CaedenHarper 🇨🇦 585 110 9 Oct 2024 479th cros107 585 110 1 Jan 2025 481st luca1339 585 198 4 Nov 2024 482nd JunkIce 582 98 3 Dec 2024 483rd dokutan 582 174 21 Feb 2025 484th Trip-kun 580 136 5 Oct 2024 485th mousetail 🇳🇱 579 111 6 Oct 2024 486th MeWhenI 🇻🇦 578 111 2 Oct 2024 487th MeWhenI 🇻🇦 576 331 2 Oct 2024 488th OllieBoyne 🇬🇧 574 112 17 Oct 2024 488th WillConker 574 112 22 Oct 2024 488th maxgodfrey2004 🇨🇦 574 112 4 Jan 2025 491st MeWhenI 🇻🇦 574 164 6 Oct 2024 492nd Jacob385 574 202 2 Oct 2024 493rd KatieLG 🇬🇧 572 99 1 Oct 2024 494th 823126 572 112 13 Nov 2024 495th emgordon154 568 44 1 Oct 2024 496th KatieLG 🇬🇧 560 85 12 Jan 2025 497th jipsong 🇩🇪 559 115 42 hours ago 498th aliakseikalosha 557 127 10 Oct 2024 499th rowechenzhong 554 116 17 Oct 2024 500th MeWhenI 🇻🇦 554 290 2 Oct 2024 501st JDiLenarda 🇫🇷 553 165 1 Oct 2024 502nd madex 🇩🇪 552 116 1 Oct 2024 503rd edsrzf 🇳🇿 551 135 27 Feb 2025 504th xyangst 551 171 1 Oct 2024 505th dtbao20 🇻🇳 550 117 1 Oct 2024 505th Pyroan 550 117 22 Feb 2025 505th andrewjc2000 550 117 7 days ago 508th mousetail 🇳🇱 547 94 3 Oct 2024 509th msbranicky 547 185 20 Jan 2025 510th emgordon154 546 52 3 Nov 2024 511th mousetail 🇳🇱 546 128 3 Oct 2024 512th elgan65536 545 118 2 Oct 2024 512th logvp 545 118 6 Oct 2024 512th ahmetdemirag 🇨🇾 545 118 6 Feb 2025 512th KatieLG 🇬🇧 545 118 23 days ago 516th zakariamouhid 543 118 1 Oct 2024 517th jtaxen 540 119 21 Oct 2024 517th psbpsbp 540 119 19 Dec 2024 517th klixel 🇨🇦 540 119 9 Apr 2025 520th najs91 540 131 15 Oct 2024 520th bac0id 540 131 9 Jan 2025 522nd eranws 538 119 23 Dec 2024 523rd msbranicky 538 175 13 Dec 2024 524th TaserTheFox 🇺🇸 536 120 8 Oct 2024 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