Card Number Validation in all languages in bytes. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve 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 Minesweeper Morse Decoder Morse Encoder Multitap Input 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) Taxicab Numbers Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang F# Factor Forth Fortran Gleam Go GolfScript Groovy 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve 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 Minesweeper Morse Decoder Morse Encoder Multitap Input 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) Taxicab Numbers Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers Huffman Encoder NFA Simulator Nim Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 901st fantaize 284 330 204ms 10 Mar 2026 902nd ReterikHub 280 310 215ms 17 Jan 2025 903rd Mikey-Beep 🇬🇧 277 344 17ms 12 days ago 904th MeWhenI 🇻🇦 272 407 119ms 6 Oct 2024 905th arebbsba 270 296 10ms 9 Jan 2025 906th kasarino 267 299 11ms 8 Feb 2026 907th nickweissert-star 266 176 289ms 3 days ago 908th kasarino 258 373 44ms 8 Feb 2026 909th benanlam 249 320 12ms 21 Dec 2025 910th scpchicken 🇵🇼 217 330 435ms 4 days ago 911th Msleizak 🇫🇷 207 226 241ms 19 May 2025 912th theEsteemed 154 606 468ms 20 Jan 2026 913th AidanWalter 148 540 11ms 1 Jan 2025 914th bignamehyp 120 667 11ms 14 Nov 2024 915th vkptimon 120 776 404ms 9 Jul 2025 916th aksyristos 88 819 444ms 8 hours ago 917th dokutan 61 2,475 128ms 18 Aug 2025 918th iczelia 🇩🇪 52 2,045 4ms 14 Oct 2025 919th lyphyser 0 15 34ms 25 May 2025 919th 2bular 0 15 34ms 14 Feb 2026 919th Natanaelel 🇸🇪 0 15 34ms 17 Feb 2026 922nd darrenks 🇺🇸 0 16 35ms 14 Feb 2026 923rd plcc0 0 18 37ms 14 Feb 2026 924th namelessiw 0 21 150ms 19 Nov 2025 925th kg583 🇺🇸 0 25 267ms 8 Feb 2025 926th lyxal 🇦🇺 0 27 714ms 17 May 2025 927th plcc0 0 30 124ms 31 Jan 2026 928th themoonisacheese 0 35 697ms 13 Jun 2025 928th jshholland 0 35 697ms 19 Feb 2026 930th ovs-code 🇩🇪 0 52 4ms 24 Jan 2026 931st GrayJoKing 🇦🇺 0 55 4ms 13 Jul 2025 932nd ovs-code 🇩🇪 0 58 3ms 13 Jul 2025 933rd AlephSquirrel 0 63 4ms 15 Jun 2025 934th DialFrost 🇸🇬 0 68 11ms 4 Dec 2025 935th chunes3 🇺🇸 0 69 7ms 13 Feb 2025 936th maweowo 🇩🇪 0 70 4ms 2 Oct 2025 937th evnu 0 73 5ms 12 Oct 2025 938th commandz0 🇺🇸 0 74 4ms 10 Jan 2026 939th ovs-code 🇩🇪 0 76 15ms 13 Jun 2025 940th sean-niemann 🇺🇸 0 80 59ms 29 Apr 2025 941st NicoBliss 0 84 9ms 11 Jan 2026 942nd KatieLG 🇬🇧 0 89 5ms 10 Jan 2026 943rd dokutan 0 110 71ms 14 Mar 2026 944th albanian-laundromat 🇺🇸 0 123 2ms 4 Jun 2025 945th Matter1024 🇮🇳 0 129 3ms 15 days ago 946th dokutan 0 138 8ms 11 Jan 2026 947th edsrzf 🇳🇿 0 142 186ms 24 Jul 2025 948th FortuiteMan 🇫🇷 0 181 276ms 7 days ago 949th MatthewF19 0 192 108ms 17 May 2025 950th dokutan 0 219 58ms 28 Jun 2025 First Prev 901–950 of 950
