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 Topological Sort 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 Knight Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka 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 Knight Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka 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 Topological Sort 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 676th grey0ut 444 105 11 Jan 2025 677th calum12345 442 180 26 Mar 2025 678th MyXoToD 🇩🇪 440 146 26 May 2025 679th zt14427 437 182 27 Dec 2024 679th Upload-and-View 🇺🇦 437 182 12 days ago 681st IoLimmer 434 183 10 Oct 2024 682nd aksyristos 432 184 15 Nov 2024 683rd estomagordo 🇳🇱 427 186 20 days ago 684th dokutan 424 132 3 Oct 2024 685th MeWhenI 🇻🇦 417 143 2 Oct 2024 686th CheeseCake628 🇳🇴 412 160 19 May 2025 687th dieggsy 405 247 10 Oct 2024 688th Mabeloid 🇳🇴 404 159 12 Oct 2024 689th Ralac07 🇦🇺 396 162 3 Oct 2024 690th snoozingnewt 🇺🇸 383 176 2 Oct 2024 690th fischfood 383 176 22 Oct 2024 692nd c0d3-4-F00d 🇩🇪 380 184 9 Jan 2025 693rd ehulinsky 🇺🇸 378 158 2 Apr 2025 694th RedzGoose 🇦🇺 369 187 2 Oct 2024 695th RobGLambert 369 232 8 Jun 2025 696th P1nk-P0nk 367 215 18 Oct 2024 697th gautambp 365 218 24 Jun 2025 698th sciencejiho 355 197 11 Feb 2025 699th The-Wolfson 350 230 16 Dec 2024 700th Zhenyu-Bo 349 228 5 days ago 701st RobGLambert 340 273 8 Jun 2025 702nd Ernest1338 338 275 26 Oct 2024 703rd noahhorlacher 336 191 7 Dec 2024 704th te-chnical 308 258 4 May 2025 705th ReterikHub 276 310 17 Jan 2025 706th MeWhenI 🇻🇦 270 407 6 Oct 2024 707th arebbsba 268 296 9 Jan 2025 708th Msleizak 🇫🇷 206 226 19 May 2025 709th vkptimon 150 776 26 days ago 710th AidanWalter 147 540 1 Jan 2025 711th bignamehyp 119 667 14 Nov 2024 712th lyphyser 0 15 25 May 2025 713th 2bular 0 16 22 Mar 2025 714th darrenks 0 17 22 Mar 2025 715th Natanaelel 🇸🇪 0 18 23 Mar 2025 716th plcc0 0 21 4 Apr 2025 717th kg583 🇺🇸 0 25 8 Feb 2025 718th lyxal 🇦🇺 0 27 17 May 2025 719th themoonisacheese 0 35 13 Jun 2025 720th ovs-code 🇩🇪 0 54 26 days ago 721st GrayJoKing 🇦🇺 0 55 22 days ago 722nd ovs-code 🇩🇪 0 58 22 days ago 723rd AlephSquirrel 0 63 15 Jun 2025 724th DialFrost 🇸🇬 0 67 13 Feb 2025 725th chunes3 🇺🇸 0 69 13 Feb 2025 726th ovs-code 🇩🇪 0 76 13 Jun 2025 727th sean-niemann 🇺🇸 0 80 29 Apr 2025 728th albanian-laundromat 0 123 4 Jun 2025 729th edsrzf 🇳🇿 0 142 12 days ago 730th MatthewF19 0 192 17 May 2025 731st dokutan 0 219 28 Jun 2025 Prev 676–731 of 731