Card Number Validation in all languages in bytes. 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 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 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 Colors (Inverse) 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 Polygon Triangulations QR Encoder Quadratic Formula 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 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 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 Colors (Inverse) 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 Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 526th DialFrost 🇸🇬 585 67 25 Jan 2025 527th luca1339 585 198 4 Nov 2024 528th dokutan 584 174 21 Feb 2025 529th sciencedjinn 583 136 8 Nov 2024 529th ihatethefrench 583 136 4 Jan 2025 531st olleicua 🇺🇸 581 82 18 Oct 2024 532nd Trip-kun 580 136 5 Oct 2024 533rd kurkale6ka 579 137 16 Oct 2024 533rd 4ndyJ 🇬🇧 579 137 14 Nov 2024 535th MeWhenI 🇻🇦 576 331 2 Oct 2024 536th BREMAUCY 🇫🇷 575 138 2 Oct 2024 537th Jacob385 574 202 2 Oct 2024 538th KatieLG 🇬🇧 572 99 1 Oct 2024 539th 823126 572 112 13 Nov 2024 540th scpchicken 🇵🇼 571 139 6 Oct 2024 541st emgordon154 568 44 1 Oct 2024 542nd NanduBC 567 140 1 Oct 2024 542nd Mikey-Beep 🇬🇧 567 140 7 Oct 2024 542nd jmerle 🇳🇱 567 140 10 Jan 2025 542nd RobertHoeh 567 140 3 Mar 2025 542nd smilesformiles3 567 140 2 days ago 547th MeWhenI 🇻🇦 567 164 6 Oct 2024 548th FranklinJiaChen 563 141 2 Oct 2024 549th KatieLG 🇬🇧 561 85 12 Jan 2025 550th brimstonetrader 559 142 17 Oct 2024 550th snoozingnewt 🇺🇸 559 142 31 Mar 2025 550th codewrite 🇬🇧 559 142 5 May 2025 550th RobGLambert 559 142 7 days ago 554th aliakseikalosha 557 127 10 Oct 2024 555th GeneralFabian 555 143 9 Dec 2024 555th CutSandstone 555 143 30 Jan 2025 555th kistlerf 🇨🇭 555 143 26 days ago 558th MeWhenI 🇻🇦 554 290 2 Oct 2024 559th JDiLenarda 🇫🇷 553 165 1 Oct 2024 560th madex 🇩🇪 552 116 1 Oct 2024 561st edsrzf 🇳🇿 551 135 27 Feb 2025 562nd hiichbindermax 551 144 2 Oct 2024 562nd mathisfun271 551 144 14 Oct 2024 562nd bob-th 551 144 22 Oct 2024 565th msbranicky 550 185 20 Jan 2025 566th KatieLG 🇬🇧 548 120 1 Oct 2024 567th mousetail 🇳🇱 547 94 3 Oct 2024 568th JunkIce 547 145 3 Dec 2024 569th emgordon154 546 52 3 Nov 2024 570th mousetail 🇳🇱 546 128 3 Oct 2024 571st zakariamouhid 543 118 1 Oct 2024 572nd croc54 543 146 15 Dec 2024 573rd xyangst 543 171 1 Oct 2024 574th najs91 540 131 15 Oct 2024 574th bac0id 540 131 9 Jan 2025 576th PyryL 🇫🇮 540 147 1 Mar 2025 577th dokutan 539 122 19 Oct 2024 578th eranws 538 119 23 Dec 2024 579th Sciman101 536 147 26 Mar 2025 580th mbittner20 536 148 13 Oct 2024 581st msbranicky 531 175 13 Dec 2024 582nd deancureton 529 121 30 Dec 2024 583rd FlorianCassayre 🇫🇷 529 150 1 Oct 2024 583rd jameswmccarty 529 150 5 Oct 2024 583rd yousefalizadeh 529 150 23 Oct 2024 583rd feherd 529 150 31 Oct 2024 583rd RaBa21 529 150 4 May 2025 583rd TheZwierzLF 🇵🇱 529 150 17 May 2025 589th janAkali 🇷🇺 529 167 8 Oct 2024 590th msbranicky 527 126 9 Jan 2025 591st galloj 🇨🇿 522 112 4 Oct 2024 592nd adamnielson42 🇺🇸 522 152 6 Oct 2024 592nd voidgloom 522 152 22 Oct 2024 594th xyangst 519 153 1 Oct 2024 595th sidok 514 109 13 Nov 2024 596th cdesodt 512 155 16 Oct 2024 597th nephila-nacrea 🇬🇧 509 77 2 Oct 2024 598th dokutan 509 143 19 Oct 2024 599th KatieLG 🇬🇧 509 146 2 Oct 2024 600th Chinay-Domitrix 🇺🇸 507 131 30 Mar 2025 Prev 526–600 of 683 Next