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 601st cdesodt 512 155 16 Oct 2024 602nd nephila-nacrea 🇬🇧 509 77 2 Oct 2024 603rd dokutan 509 143 19 Oct 2024 604th KatieLG 🇬🇧 509 146 2 Oct 2024 605th dokutan 507 126 6 hours ago 606th Chinay-Domitrix 🇺🇸 507 131 30 Mar 2025 607th KatieLG 🇬🇧 506 140 1 Oct 2024 608th lhulinsky 506 157 21 Oct 2024 609th msbranicky 505 138 3 Oct 2024 610th ThatAlo 502 158 9 Dec 2024 611th MeWhenI 🇻🇦 499 149 4 Oct 2024 612th jlangvand 496 141 15 Oct 2024 612th HumanoidCPU 496 141 7 Mar 2025 614th CheeseCake628 🇳🇴 496 160 5 Nov 2024 615th Mabeloid 🇳🇴 495 133 2 Oct 2024 616th pres-abhisheksinha 493 161 8 Oct 2024 617th ibixina 490 162 13 Oct 2024 617th TheAtrossian 490 162 5 Jan 2025 619th TheRealOhead 🇺🇸 489 131 1 Oct 2024 620th HumanoidCPU 488 145 5 Oct 2024 621st JunkIce 484 136 3 Dec 2024 622nd h-hh-hhh 🇺🇦 484 177 2 Nov 2024 623rd Mabeloid 🇳🇴 482 145 2 Oct 2024 624th Vaekor 481 165 15 Dec 2024 625th snoozingnewt 🇺🇸 480 137 27 Jan 2025 626th alphafalfa 476 92 8 Nov 2024 627th KatieLG 🇬🇧 476 108 13 Oct 2024 628th h-hh-hhh 🇺🇦 476 147 2 Nov 2024 629th mitzal 476 180 9 Feb 2025 630th MiffOttah 472 150 6 Oct 2024 631st Maximizer02 472 201 1 Oct 2024 632nd JesseNoEyes 🇺🇸 470 169 1 Oct 2024 633rd ejini6969 467 102 8 days ago 634th zyc-2024 🇨🇳 467 170 5 Oct 2024 635th ComputerKWasTaken 🇺🇸 464 171 14 Oct 2024 636th varhammer 🇷🇺 463 223 23 Feb 2025 637th Yewzir 🇧🇪 460 171 26 Dec 2024 638th madex 🇩🇪 458 104 2 Oct 2024 639th dokutan 451 63 26 Nov 2024 640th IISResetMe 447 104 27 Mar 2025 641st OSYCh314 🇦🇺 446 178 2 Nov 2024 642nd dokutan 445 109 19 Oct 2024 643rd grey0ut 443 105 11 Jan 2025 644th calum12345 441 180 26 Mar 2025 645th MyXoToD 🇩🇪 439 146 27 days ago 646th zt14427 436 182 27 Dec 2024 647th IoLimmer 434 183 10 Oct 2024 648th aksyristos 431 184 15 Nov 2024 649th dokutan 424 132 3 Oct 2024 650th dieggsy 418 247 10 Oct 2024 651st MeWhenI 🇻🇦 417 143 2 Oct 2024 652nd CheeseCake628 🇳🇴 411 160 19 May 2025 653rd Mabeloid 🇳🇴 403 159 12 Oct 2024 654th Ralac07 🇦🇺 396 162 3 Oct 2024 655th snoozingnewt 🇺🇸 383 176 2 Oct 2024 655th fischfood 383 176 22 Oct 2024 657th c0d3-4-F00d 🇩🇪 380 184 9 Jan 2025 658th ehulinsky 🇺🇸 378 158 2 Apr 2025 659th RedzGoose 🇦🇺 369 187 2 Oct 2024 660th RobGLambert 369 232 14 days ago 661st P1nk-P0nk 367 215 18 Oct 2024 662nd sciencejiho 355 197 11 Feb 2025 663rd The-Wolfson 348 230 16 Dec 2024 664th RobGLambert 340 273 14 days ago 665th Ernest1338 338 275 26 Oct 2024 666th noahhorlacher 336 191 7 Dec 2024 667th te-chnical 308 258 4 May 2025 668th ReterikHub 276 310 17 Jan 2025 669th MeWhenI 🇻🇦 270 407 6 Oct 2024 670th arebbsba 268 296 9 Jan 2025 671st mossiegoat 264 301 10 hours ago 672nd Msleizak 🇫🇷 206 226 19 May 2025 673rd AidanWalter 147 540 1 Jan 2025 674th bignamehyp 119 667 14 Nov 2024 675th lyphyser 0 15 25 May 2025 Prev 601–675 of 690 Next