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 Mandelbrot 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Topological Sort 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 Vala 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 Vala 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 Mandelbrot 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Topological Sort Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 601st dokutan 540 122 19 Oct 2024 602nd najs91 540 131 15 Oct 2024 602nd bac0id 540 131 9 Jan 2025 604th PyryL 🇫🇮 540 147 1 Mar 2025 605th eranws 539 119 23 Dec 2024 606th mbittner20 537 148 13 Oct 2024 607th Sciman101 536 147 26 Mar 2025 608th deancureton 531 121 30 Dec 2024 609th msbranicky 531 175 13 Dec 2024 610th FlorianCassayre 🇫🇷 530 150 1 Oct 2024 610th jameswmccarty 530 150 5 Oct 2024 610th yousefalizadeh 530 150 23 Oct 2024 610th feherd 530 150 31 Oct 2024 610th TheZwierzLF 🇵🇱 530 150 17 May 2025 615th msbranicky 527 126 9 Jan 2025 616th adamnielson42 🇺🇸 523 152 6 Oct 2024 616th voidgloom 523 152 22 Oct 2024 618th galloj 🇨🇿 522 112 4 Oct 2024 619th xyangst 519 153 1 Oct 2024 620th sidok 514 109 13 Nov 2024 621st cdesodt 512 155 16 Oct 2024 622nd nephila-nacrea 🇬🇧 509 77 2 Oct 2024 623rd dokutan 509 143 19 Oct 2024 624th KatieLG 🇬🇧 509 146 2 Oct 2024 625th dokutan 507 126 22 Jun 2025 626th Chinay-Domitrix 🇺🇸 507 131 30 Mar 2025 627th KatieLG 🇬🇧 506 140 1 Oct 2024 628th lhulinsky 506 157 21 Oct 2024 629th msbranicky 505 138 3 Oct 2024 630th ThatAlo 503 158 9 Dec 2024 631st albanian-laundromat 499 88 20 days ago 632nd MeWhenI 🇻🇦 499 149 4 Oct 2024 633rd janAkali 🇷🇺 497 167 8 Oct 2024 634th jlangvand 496 141 15 Oct 2024 634th HumanoidCPU 496 141 7 Mar 2025 636th CheeseCake628 🇳🇴 496 160 5 Nov 2024 637th Mabeloid 🇳🇴 495 133 2 Oct 2024 638th pres-abhisheksinha 493 161 8 Oct 2024 639th TheRealOhead 🇺🇸 490 131 1 Oct 2024 640th ibixina 490 162 13 Oct 2024 640th TheAtrossian 490 162 5 Jan 2025 642nd HumanoidCPU 488 145 5 Oct 2024 643rd JunkIce 484 136 3 Dec 2024 644th h-hh-hhh 🇺🇦 484 177 2 Nov 2024 645th Mabeloid 🇳🇴 483 145 2 Oct 2024 646th snoozingnewt 🇺🇸 481 137 27 Jan 2025 647th Vaekor 481 165 15 Dec 2024 647th mossiegoat 481 165 7 days ago 649th alphafalfa 477 92 8 Nov 2024 650th KatieLG 🇬🇧 476 108 13 Oct 2024 651st h-hh-hhh 🇺🇦 476 147 2 Nov 2024 652nd mitzal 476 180 9 Feb 2025 653rd MiffOttah 472 150 6 Oct 2024 654th Maximizer02 472 201 1 Oct 2024 655th JesseNoEyes 🇺🇸 470 169 1 Oct 2024 656th ejini6969 467 102 14 Jun 2025 657th zyc-2024 🇨🇳 467 170 5 Oct 2024 658th ComputerKWasTaken 🇺🇸 465 171 14 Oct 2024 659th varhammer 🇷🇺 463 223 23 Feb 2025 660th Yewzir 🇧🇪 460 171 26 Dec 2024 661st madex 🇩🇪 458 104 2 Oct 2024 662nd dokutan 451 63 26 Nov 2024 663rd clayboll99 451 176 13 days ago 664th IISResetMe 449 104 27 Mar 2025 665th OSYCh314 🇦🇺 446 178 2 Nov 2024 666th dokutan 445 109 19 Oct 2024 667th grey0ut 444 105 11 Jan 2025 668th calum12345 441 180 26 Mar 2025 669th MyXoToD 🇩🇪 440 146 26 May 2025 670th zt14427 436 182 27 Dec 2024 671st IoLimmer 434 183 10 Oct 2024 672nd aksyristos 432 184 15 Nov 2024 673rd estomagordo 🇳🇱 427 186 8 days ago 674th dokutan 424 132 3 Oct 2024 675th dieggsy 418 247 10 Oct 2024 Prev 601–675 of 720 Next