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 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 Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 599th yousefalizadeh 529 150 23 Oct 2024 599th feherd 529 150 31 Oct 2024 599th RaBa21 529 150 4 May 2025 599th TheZwierzLF 🇵🇱 529 150 17 May 2025 605th msbranicky 527 126 9 Jan 2025 606th galloj 🇨🇿 522 112 4 Oct 2024 607th adamnielson42 🇺🇸 522 152 6 Oct 2024 607th voidgloom 522 152 22 Oct 2024 609th xyangst 519 153 1 Oct 2024 609th dirckvdende 519 153 7 days ago 611th sidok 514 109 13 Nov 2024 612th cdesodt 512 155 16 Oct 2024 613th nephila-nacrea 🇬🇧 509 77 2 Oct 2024 614th dokutan 509 143 19 Oct 2024 615th KatieLG 🇬🇧 509 146 2 Oct 2024 616th dokutan 507 126 15 days ago 617th Chinay-Domitrix 🇺🇸 507 131 30 Mar 2025 618th KatieLG 🇬🇧 506 140 1 Oct 2024 619th lhulinsky 506 157 21 Oct 2024 620th msbranicky 505 138 3 Oct 2024 621st ThatAlo 503 158 9 Dec 2024 622nd albanian-laundromat 499 88 5 days ago 623rd MeWhenI 🇻🇦 499 149 4 Oct 2024 624th CheeseCake628 🇳🇴 496 160 5 Nov 2024 625th Mabeloid 🇳🇴 495 133 2 Oct 2024 626th jlangvand 495 141 15 Oct 2024 626th HumanoidCPU 495 141 7 Mar 2025 628th pres-abhisheksinha 493 161 8 Oct 2024 629th TheRealOhead 🇺🇸 490 131 1 Oct 2024 630th ibixina 490 162 13 Oct 2024 630th TheAtrossian 490 162 5 Jan 2025 632nd HumanoidCPU 488 145 5 Oct 2024 633rd JunkIce 484 136 3 Dec 2024 634th h-hh-hhh 🇺🇦 484 177 2 Nov 2024 635th Mabeloid 🇳🇴 482 145 2 Oct 2024 636th Vaekor 481 165 15 Dec 2024 637th snoozingnewt 🇺🇸 480 137 27 Jan 2025 638th alphafalfa 477 92 8 Nov 2024 639th KatieLG 🇬🇧 476 108 13 Oct 2024 640th mitzal 476 180 9 Feb 2025 641st h-hh-hhh 🇺🇦 475 147 2 Nov 2024 642nd MiffOttah 472 150 6 Oct 2024 643rd Maximizer02 472 201 1 Oct 2024 644th JesseNoEyes 🇺🇸 470 169 1 Oct 2024 645th ejini6969 467 102 23 days ago 646th zyc-2024 🇨🇳 467 170 5 Oct 2024 647th ComputerKWasTaken 🇺🇸 464 171 14 Oct 2024 647th mossiegoat 464 171 2 days ago 649th varhammer 🇷🇺 463 223 23 Feb 2025 650th Yewzir 🇧🇪 460 171 26 Dec 2024 651st madex 🇩🇪 458 104 2 Oct 2024 652nd dokutan 451 63 26 Nov 2024 653rd IISResetMe 449 104 27 Mar 2025 654th OSYCh314 🇦🇺 446 178 2 Nov 2024 655th dokutan 445 109 19 Oct 2024 656th grey0ut 444 105 11 Jan 2025 657th calum12345 441 180 26 Mar 2025 658th MyXoToD 🇩🇪 439 146 26 May 2025 659th zt14427 436 182 27 Dec 2024 660th IoLimmer 434 183 10 Oct 2024 661st aksyristos 432 184 15 Nov 2024 662nd dokutan 424 132 3 Oct 2024 663rd dieggsy 418 247 10 Oct 2024 664th MeWhenI 🇻🇦 417 143 2 Oct 2024 665th CheeseCake628 🇳🇴 411 160 19 May 2025 666th Mabeloid 🇳🇴 403 159 12 Oct 2024 667th Ralac07 🇦🇺 396 162 3 Oct 2024 668th snoozingnewt 🇺🇸 383 176 2 Oct 2024 668th fischfood 383 176 22 Oct 2024 670th c0d3-4-F00d 🇩🇪 380 184 9 Jan 2025 671st ehulinsky 🇺🇸 378 158 2 Apr 2025 672nd RedzGoose 🇦🇺 369 187 2 Oct 2024 673rd RobGLambert 369 232 8 Jun 2025 674th P1nk-P0nk 367 215 18 Oct 2024 675th gautambp 364 218 13 days ago Prev 601–675 of 704 Next