Card Number Validation in all languages in chars. 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 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 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) 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> 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 ALGOL 68 APL ArkScript 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 ><> 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 ALGOL 68 APL ArkScript 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 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 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) 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 79th sean-niemann 🇺🇸 890 78 2ms 19 Nov 2025 79th edsrzf 🇳🇿 890 78 2ms 4 hours ago 79th Steffan153 🇫🇮 890 78 2ms 48 mins ago 84th GrayJoKing 🇦🇺 889 60 4ms 3 Oct 2024 85th nwellnhof 🇩🇪 889 105 627ms 25 Sep 2025 86th JayXon 🇺🇸 889 134 289ms 3 Oct 2024 87th MeWhenI 🇻🇦 888 64 1,305ms 3 Oct 2024 88th kgolf 887 32 3ms 15 Apr 2025 89th MeWhenI 🇻🇦 886 54 35ms 3 Oct 2024 89th error256 886 54 36ms 7 Oct 2024 89th nwellnhof 🇩🇪 886 54 37ms 13 Oct 2024 89th sean-niemann 🇺🇸 886 54 37ms 12 Oct 2025 93rd canissimia 🇦🇶 886 66 8ms 1 Oct 2024 94th Steffan153 🇫🇮 885 65 779ms 4 days ago 94th edsrzf 🇳🇿 885 65 847ms 13 hours ago 96th moustave 885 73 22ms 5 Nov 2024 96th emgordon154 885 73 18ms 18 Nov 2024 98th nwellnhof 🇩🇪 883 135 290ms 16 Oct 2024 99th dmrichwa 🇺🇸 882 73 12ms 5 Oct 2024 99th DialFrost 🇸🇬 882 73 10ms 12 Oct 2024 101st GrayJoKing 🇦🇺 881 90 2ms 3 Oct 2024 101st FlyingPenguin223 881 90 2ms 16 Oct 2024 103rd acotis 880 106 144ms 29 May 2025 104th ovs-code 🇩🇪 878 69 4ms 4 Oct 2024 104th edsrzf 🇳🇿 878 69 4ms 10 Nov 2025 106th sean-niemann 🇺🇸 878 76 2,410ms 24 Oct 2024 107th JayXon 🇺🇸 878 93 108ms 14 Oct 2024 108th JayXon 🇺🇸 877 95 374ms 23 Jul 2025 109th JayXon 🇺🇸 876 84 117ms 24 May 2025 110th edsrzf 🇳🇿 876 91 8ms 16 Aug 2025 111th edsrzf 🇳🇿 876 136 296ms 3 hours ago 112th JayXon 🇺🇸 875 79 129ms 17 Oct 2024 113th kg583 🇺🇸 874 111 7ms 18 hours ago 114th albanian-laundromat 873 74 17ms 3 Nov 2025 114th plcc0 873 74 17ms 12 Jan 2026 116th edsrzf 🇳🇿 873 107 421ms 2 hours ago 117th ovs-code 🇩🇪 873 127 127ms 2 Oct 2024 118th sean-niemann 🇺🇸 871 66 346ms 30 Dec 2025 119th KasperKivimaeki 🇫🇮 871 79 2ms 6 Dec 2025 120th Shanethegamer 🇺🇸 871 91 2ms 4 Oct 2024 121st ovs-code 🇩🇪 870 55 37ms 5 Oct 2024 121st Steffan153 🇫🇮 870 55 39ms 4 days ago 123rd Natanaelel 🇸🇪 870 74 12ms 1 Oct 2024 123rd helbling 🇨🇭 870 74 12ms 1 Oct 2024 123rd Irratix 🇳🇱 870 74 11ms 14 Oct 2024 123rd emgordon154 870 74 12ms 18 Nov 2024 127th JayXon 🇺🇸 869 117 2ms 5 Oct 2024 128th DialFrost 🇸🇬 868 74 105ms 17 Mar 2025 129th emgordon154 867 77 2,406ms 8 Nov 2024 130th UnderKoen 🇳🇱 865 86 7ms 4 Oct 2024 131st JayXon 🇺🇸 865 104 89ms 6 Oct 2024 132nd GrayJoKing 🇦🇺 864 87 12ms 25 Nov 2025 133rd ovs-code 🇩🇪 862 29 40ms 4 Oct 2024 134th anter69 🇭🇺 862 75 18ms 11 Oct 2024 135th pardouin 🇫🇷 861 66 1,435ms 10 Apr 2025 136th Natanaelel 🇸🇪 860 33 2ms 6 Oct 2024 136th GrayJoKing 🇦🇺 860 33 2ms 6 Jun 2025 136th SirBogman 🇺🇸 860 33 2ms 8 Jul 2025 139th nwellnhof 🇩🇪 860 68 9ms 5 Oct 2024 140th tomtheisen 🇺🇸 860 83 443ms 10 Feb 2025 141st edsrzf 🇳🇿 860 84 4ms 18 hours ago 142nd edsrzf 🇳🇿 859 113 6ms 22 days ago 143rd kg583 🇺🇸 858 67 424ms 1 Oct 2024 144th voytxt 🇨🇿 858 75 10ms 1 Oct 2024 144th MeWhenI 🇻🇦 858 75 10ms 2 Oct 2024 144th m-tkach 🇺🇦 858 75 9ms 5 Oct 2024 144th error256 858 75 9ms 7 Oct 2024 148th kg583 🇺🇸 857 93 9ms 19 hours ago 149th stefangimmillaro 857 139 282ms 3 Oct 2024 150th ovs-code 🇩🇪 856 46 4ms 4 Oct 2024 150th nwellnhof 🇩🇪 856 46 4ms 7 Oct 2024 152nd edsrzf 🇳🇿 856 90 118ms 18 Dec 2025 153rd m-tkach 🇺🇦 855 87 7ms 6 Oct 2024 154th JayXon 🇺🇸 853 95 445ms 4 Oct 2024 155th sean-niemann 🇺🇸 852 51 2ms 2 Oct 2024 156th sean-niemann 🇺🇸 852 68 131ms 1 Oct 2024 157th kg583 🇺🇸 851 134 43ms 18 hours ago 158th lifthrasiir 🇰🇷 850 76 10ms 16 Nov 2024 158th snoozingnewt 🇨🇦 850 76 10ms 6 Dec 2025 160th MostParsingVex 850 100 1,024ms 1 Oct 2024 First Prev 81–160 of 888 Next Last