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 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 Star Wars GPT 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 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 Star Wars GPT Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 451st MeWhenI 🇻🇦 600 73 2 Oct 2024 452nd commandblockguy 🇺🇸 600 107 7 Oct 2024 452nd zbreit 🇺🇸 600 107 29 Oct 2024 452nd StardustGogeta 600 107 30 Oct 2024 452nd ZakkkkAttackkkk 🇵🇭 600 107 8 Feb 2025 456th MeWhenI 🇻🇦 597 98 1 Oct 2024 457th roguh 🇬🇹 597 117 13 Oct 2024 458th dokutan 596 117 3 Oct 2024 459th neihousaigaai 595 108 4 Oct 2024 459th StefanHabel 🇨🇦 595 108 23 Jan 2025 461st ravnskjaer 🇩🇰 594 195 20 Dec 2024 462nd yoshykai 591 196 3 days ago 463rd arcpolaris 590 120 28 Jan 2025 464th edsrzf 🇳🇿 588 113 26 Oct 2024 465th bac0id 587 119 10 Jan 2025 466th DialFrost 🇸🇬 585 67 25 Jan 2025 467th luca1339 585 198 4 Nov 2024 468th CaedenHarper 🇨🇦 584 110 9 Oct 2024 468th cros107 584 110 1 Jan 2025 470th JunkIce 582 98 3 Dec 2024 471st dokutan 582 174 21 Feb 2025 472nd Trip-kun 580 136 5 Oct 2024 473rd mousetail 🇳🇱 579 111 6 Oct 2024 474th MeWhenI 🇻🇦 578 111 2 Oct 2024 475th OllieBoyne 🇬🇧 574 112 17 Oct 2024 475th WillConker 574 112 22 Oct 2024 475th maxgodfrey2004 🇨🇦 574 112 4 Jan 2025 478th Jacob385 574 202 2 Oct 2024 479th KatieLG 🇬🇧 572 99 1 Oct 2024 480th MeWhenI 🇻🇦 572 164 6 Oct 2024 481st 823126 571 112 13 Nov 2024 482nd emgordon154 568 44 1 Oct 2024 483rd KatieLG 🇬🇧 560 85 12 Jan 2025 484th aliakseikalosha 557 127 10 Oct 2024 485th rowechenzhong 554 116 17 Oct 2024 486th MeWhenI 🇻🇦 554 290 2 Oct 2024 487th JDiLenarda 🇫🇷 553 165 1 Oct 2024 488th madex 🇩🇪 552 116 1 Oct 2024 489th edsrzf 🇳🇿 551 135 27 Feb 2025 490th dtbao20 🇻🇳 549 117 1 Oct 2024 490th Pyroan 549 117 22 Feb 2025 492nd xyangst 548 171 1 Oct 2024 493rd mousetail 🇳🇱 547 94 3 Oct 2024 494th msbranicky 547 185 20 Jan 2025 495th emgordon154 546 52 3 Nov 2024 496th mousetail 🇳🇱 546 128 3 Oct 2024 497th elgan65536 545 118 2 Oct 2024 497th logvp 545 118 6 Oct 2024 497th ahmetdemirag 🇨🇾 545 118 6 Feb 2025 500th zakariamouhid 542 118 1 Oct 2024 501st jtaxen 540 119 21 Oct 2024 501st psbpsbp 540 119 19 Dec 2024 503rd najs91 540 131 15 Oct 2024 503rd bac0id 540 131 9 Jan 2025 505th eranws 538 119 23 Dec 2024 506th Sciman101 536 147 7 days ago 507th msbranicky 536 175 13 Dec 2024 508th TaserTheFox 🇺🇸 535 120 8 Oct 2024 508th yokasuretsu 535 120 26 Jan 2025 508th Troon 535 120 17 Feb 2025 511th KatieLG 🇬🇧 531 121 1 Oct 2024 512th dokutan 531 143 19 Oct 2024 513th deancureton 529 121 30 Dec 2024 514th janAkali 🇷🇺 529 167 8 Oct 2024 515th chartung17 527 122 10 days ago 516th msbranicky 527 126 9 Jan 2025 517th CaedenHarper 🇨🇦 523 109 9 Oct 2024 518th galloj 🇨🇿 522 112 4 Oct 2024 519th msbranicky 522 123 3 Oct 2024 519th bobbysq 522 123 5 Oct 2024 519th wuzekai518 522 123 8 Oct 2024 519th vhoulbreque 🇫🇷 522 123 4 Feb 2025 523rd NotEvenIndian 518 124 22 Oct 2024 523rd ridingqwerty 🇺🇸 518 124 16 Jan 2025 525th sidok 514 109 13 Nov 2024 Prev 451–525 of 631 Next