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 ><> ALGOL 68 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 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 ><> ALGOL 68 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 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 80th Yax42 🇫🇷 892 80 464ms 7 Feb 2025 82nd ovs-code 🇩🇪 891 63 524ms 1 Oct 2024 83rd rucin93 🇵🇱 890 78 2ms 18 Nov 2025 83rd JayXon 🇺🇸 890 78 2ms 19 Nov 2025 83rd sean-niemann 🇺🇸 890 78 2ms 19 Nov 2025 83rd edsrzf 🇳🇿 890 78 2ms 2 days ago 83rd Steffan153 🇫🇮 890 78 2ms 46 hours ago 88th GrayJoKing 🇦🇺 889 60 4ms 3 Oct 2024 89th nwellnhof 🇩🇪 889 105 627ms 25 Sep 2025 90th JayXon 🇺🇸 889 134 289ms 3 Oct 2024 91st MeWhenI 🇻🇦 888 64 1,305ms 3 Oct 2024 92nd kgolf 887 32 3ms 15 Apr 2025 93rd Steffan153 🇫🇮 887 65 779ms 6 days ago 94th MeWhenI 🇻🇦 886 54 35ms 3 Oct 2024 94th error256 886 54 36ms 7 Oct 2024 94th nwellnhof 🇩🇪 886 54 37ms 13 Oct 2024 94th sean-niemann 🇺🇸 886 54 37ms 12 Oct 2025 98th canissimia 🇦🇶 886 66 8ms 1 Oct 2024 99th moustave 885 73 22ms 5 Nov 2024 99th emgordon154 885 73 18ms 18 Nov 2024 101st nwellnhof 🇩🇪 883 135 290ms 16 Oct 2024 101st edsrzf 🇳🇿 883 135 272ms 35 hours ago 103rd dmrichwa 🇺🇸 882 73 12ms 5 Oct 2024 103rd DialFrost 🇸🇬 882 73 10ms 12 Oct 2024 105th GrayJoKing 🇦🇺 881 90 2ms 3 Oct 2024 105th FlyingPenguin223 881 90 2ms 16 Oct 2024 107th acotis 880 106 144ms 29 May 2025 108th JayXon 🇺🇸 879 79 129ms 17 Oct 2024 109th ovs-code 🇩🇪 878 69 4ms 4 Oct 2024 109th edsrzf 🇳🇿 878 69 4ms 10 Nov 2025 111th sean-niemann 🇺🇸 878 76 2,410ms 24 Oct 2024 112th JayXon 🇺🇸 878 93 108ms 14 Oct 2024 113th JayXon 🇺🇸 877 95 374ms 23 Jul 2025 114th JayXon 🇺🇸 876 84 117ms 24 May 2025 115th edsrzf 🇳🇿 876 91 8ms 16 Aug 2025 116th xsot 🇸🇬 874 66 782ms 14 hours ago 117th kg583 🇺🇸 874 111 7ms 2 days ago 118th albanian-laundromat 873 74 17ms 3 Nov 2025 118th plcc0 873 74 17ms 12 Jan 2026 120th edsrzf 🇳🇿 873 107 421ms 47 hours ago 121st ovs-code 🇩🇪 873 127 127ms 2 Oct 2024 122nd sean-niemann 🇺🇸 872 66 346ms 30 Dec 2025 123rd JayXon 🇺🇸 872 117 2ms 5 Oct 2024 124th KasperKivimaeki 🇫🇮 871 79 2ms 6 Dec 2025 125th Shanethegamer 🇺🇸 871 91 2ms 4 Oct 2024 126th ovs-code 🇩🇪 870 55 37ms 5 Oct 2024 126th Steffan153 🇫🇮 870 55 39ms 6 days ago 128th Natanaelel 🇸🇪 870 74 12ms 1 Oct 2024 128th helbling 🇨🇭 870 74 12ms 1 Oct 2024 128th Irratix 🇳🇱 870 74 11ms 14 Oct 2024 128th emgordon154 870 74 12ms 18 Nov 2024 132nd DialFrost 🇸🇬 868 74 105ms 17 Mar 2025 133rd emgordon154 867 77 2,406ms 8 Nov 2024 134th UnderKoen 🇳🇱 865 86 7ms 4 Oct 2024 135th JayXon 🇺🇸 865 104 89ms 6 Oct 2024 136th GrayJoKing 🇦🇺 864 87 12ms 25 Nov 2025 137th ovs-code 🇩🇪 862 29 40ms 4 Oct 2024 138th anter69 🇭🇺 862 75 18ms 11 Oct 2024 139th pardouin 🇫🇷 861 66 1,435ms 10 Apr 2025 140th Natanaelel 🇸🇪 860 33 2ms 6 Oct 2024 140th GrayJoKing 🇦🇺 860 33 2ms 6 Jun 2025 140th SirBogman 🇺🇸 860 33 2ms 8 Jul 2025 143rd nwellnhof 🇩🇪 860 68 9ms 5 Oct 2024 144th tomtheisen 🇺🇸 860 83 443ms 10 Feb 2025 145th edsrzf 🇳🇿 860 84 4ms 2 days ago 146th kg583 🇺🇸 859 67 424ms 1 Oct 2024 147th voytxt 🇨🇿 859 75 10ms 1 Oct 2024 147th MeWhenI 🇻🇦 859 75 10ms 2 Oct 2024 147th m-tkach 🇺🇦 859 75 9ms 5 Oct 2024 147th error256 859 75 9ms 7 Oct 2024 151st edsrzf 🇳🇿 859 113 6ms 23 days ago 152nd kg583 🇺🇸 857 93 9ms 2 days ago 153rd stefangimmillaro 857 139 282ms 3 Oct 2024 154th ovs-code 🇩🇪 856 46 4ms 4 Oct 2024 154th nwellnhof 🇩🇪 856 46 4ms 7 Oct 2024 156th edsrzf 🇳🇿 856 90 118ms 18 Dec 2025 157th m-tkach 🇺🇦 855 87 7ms 6 Oct 2024 158th JayXon 🇺🇸 853 95 445ms 4 Oct 2024 159th sean-niemann 🇺🇸 852 51 2ms 2 Oct 2024 160th sean-niemann 🇺🇸 852 68 131ms 1 Oct 2024 First Prev 81–160 of 897 Next Last