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 449th mattyhempstead 612 105 7 Oct 2024 452nd Shanethegamer 🇺🇸 612 154 3 Oct 2024 453rd olleicua 🇺🇸 611 78 18 Oct 2024 454th emgordon154 609 156 13 Dec 2024 455th davecame 607 106 1 Oct 2024 455th starfihs 607 106 2 Oct 2024 455th rschwa6308 🇺🇸 607 106 28 Oct 2024 455th snydej 607 106 21 Nov 2024 459th bac0id 606 141 10 Jan 2025 460th Seanharrs 605 117 15 Nov 2024 461st Shanethegamer 🇺🇸 604 217 4 Oct 2024 462nd alemelis 602 93 1 Oct 2024 463rd commandblockguy 🇺🇸 601 107 7 Oct 2024 463rd zbreit 🇺🇸 601 107 29 Oct 2024 463rd StardustGogeta 601 107 30 Oct 2024 463rd ZakkkkAttackkkk 🇵🇭 601 107 8 Feb 2025 467th MeWhenI 🇻🇦 600 73 2 Oct 2024 468th MeWhenI 🇻🇦 597 98 1 Oct 2024 469th roguh 🇬🇹 597 117 13 Oct 2024 470th dokutan 596 117 3 Oct 2024 471st neihousaigaai 595 108 4 Oct 2024 471st StefanHabel 🇨🇦 595 108 23 Jan 2025 473rd ravnskjaer 🇩🇰 594 195 20 Dec 2024 474th arcpolaris 590 120 28 Jan 2025 475th edsrzf 🇳🇿 588 113 26 Oct 2024 476th bac0id 587 119 10 Jan 2025 477th DialFrost 🇸🇬 585 67 25 Jan 2025 478th CaedenHarper 🇨🇦 585 110 9 Oct 2024 478th cros107 585 110 1 Jan 2025 480th luca1339 585 198 4 Nov 2024 481st JunkIce 582 98 3 Dec 2024 482nd dokutan 582 174 21 Feb 2025 483rd Trip-kun 580 136 5 Oct 2024 484th mousetail 🇳🇱 579 111 6 Oct 2024 485th MeWhenI 🇻🇦 578 111 2 Oct 2024 486th MeWhenI 🇻🇦 576 331 2 Oct 2024 487th OllieBoyne 🇬🇧 574 112 17 Oct 2024 487th WillConker 574 112 22 Oct 2024 487th maxgodfrey2004 🇨🇦 574 112 4 Jan 2025 490th MeWhenI 🇻🇦 574 164 6 Oct 2024 491st Jacob385 574 202 2 Oct 2024 492nd KatieLG 🇬🇧 572 99 1 Oct 2024 493rd 823126 571 112 13 Nov 2024 494th emgordon154 568 44 1 Oct 2024 495th KatieLG 🇬🇧 560 85 12 Jan 2025 496th aliakseikalosha 557 127 10 Oct 2024 497th rowechenzhong 554 116 17 Oct 2024 498th MeWhenI 🇻🇦 554 290 2 Oct 2024 499th JDiLenarda 🇫🇷 553 165 1 Oct 2024 500th madex 🇩🇪 552 116 1 Oct 2024 501st edsrzf 🇳🇿 551 135 27 Feb 2025 502nd xyangst 551 171 1 Oct 2024 503rd dtbao20 🇻🇳 550 117 1 Oct 2024 503rd Pyroan 550 117 22 Feb 2025 503rd andrewjc2000 550 117 15 hours ago 506th mousetail 🇳🇱 547 94 3 Oct 2024 507th msbranicky 547 185 20 Jan 2025 508th emgordon154 546 52 3 Nov 2024 509th mousetail 🇳🇱 546 128 3 Oct 2024 510th elgan65536 545 118 2 Oct 2024 510th logvp 545 118 6 Oct 2024 510th ahmetdemirag 🇨🇾 545 118 6 Feb 2025 510th KatieLG 🇬🇧 545 118 16 days ago 514th zakariamouhid 542 118 1 Oct 2024 515th jtaxen 540 119 21 Oct 2024 515th psbpsbp 540 119 19 Dec 2024 515th klixel 🇨🇦 540 119 9 Apr 2025 518th najs91 540 131 15 Oct 2024 518th bac0id 540 131 9 Jan 2025 520th eranws 538 119 23 Dec 2024 521st msbranicky 538 175 13 Dec 2024 522nd TaserTheFox 🇺🇸 536 120 8 Oct 2024 522nd yokasuretsu 536 120 26 Jan 2025 522nd Troon 536 120 17 Feb 2025 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