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 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) 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 Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab 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) 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 Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 80th edsrzf 🇳🇿 896 72 11ms 20 Feb 2026 82nd ovs-code 🇩🇪 895 63 558ms 1 Oct 2024 83rd pardouin 🇫🇷 894 65 140ms 2 Oct 2024 84th nwellnhof 🇩🇪 894 80 418ms 2 Oct 2024 84th Yax42 🇫🇷 894 80 408ms 7 Feb 2025 86th canissimia 🇦🇶 893 28 40ms 2 Oct 2024 87th error256 893 60 1,103ms 1 Feb 2026 88th rucin93 🇵🇱 892 78 2ms 18 Nov 2025 88th JayXon 🇺🇸 892 78 2ms 19 Nov 2025 88th sean-niemann 🇺🇸 892 78 2ms 19 Nov 2025 88th edsrzf 🇳🇿 892 78 2ms 20 Feb 2026 88th Steffan153 🇫🇮 892 78 2ms 20 Feb 2026 93rd JayXon 🇺🇸 891 134 341ms 3 Oct 2024 94th MeWhenI 🇻🇦 890 64 1,305ms 3 Oct 2024 95th nwellnhof 🇩🇪 890 105 627ms 25 Sep 2025 96th GrayJoKing 🇦🇺 889 60 4ms 3 Oct 2024 97th kgolf 888 32 3ms 15 Apr 2025 98th MeWhenI 🇻🇦 888 54 36ms 3 Oct 2024 98th error256 888 54 37ms 7 Oct 2024 98th nwellnhof 🇩🇪 888 54 34ms 13 Oct 2024 98th sean-niemann 🇺🇸 888 54 39ms 12 Oct 2025 98th blaztoma 🇱🇹 888 54 37ms 8 days ago 103rd canissimia 🇦🇶 886 66 8ms 1 Oct 2024 104th moustave 886 73 23ms 5 Nov 2024 104th emgordon154 886 73 19ms 18 Nov 2024 106th acotis 886 106 146ms 29 May 2025 107th nwellnhof 🇩🇪 885 135 328ms 16 Oct 2024 107th edsrzf 🇳🇿 885 135 303ms 21 Feb 2026 109th dmrichwa 🇺🇸 884 73 10ms 5 Oct 2024 109th DialFrost 🇸🇬 884 73 10ms 12 Oct 2024 111th JayXon 🇺🇸 883 79 105ms 17 Oct 2024 112th GrayJoKing 🇦🇺 883 90 2ms 3 Oct 2024 112th FlyingPenguin223 883 90 2ms 16 Oct 2024 114th JayXon 🇺🇸 881 93 123ms 14 Oct 2024 115th sean-niemann 🇺🇸 880 76 2,440ms 24 Oct 2024 116th JayXon 🇺🇸 880 95 384ms 23 Jul 2025 117th JayXon 🇺🇸 879 84 163ms 24 May 2025 118th edsrzf 🇳🇿 879 91 7ms 16 Aug 2025 119th ovs-code 🇩🇪 878 69 4ms 4 Oct 2024 119th edsrzf 🇳🇿 878 69 4ms 10 Nov 2025 121st xsot 🇸🇬 876 66 996ms 22 Feb 2026 122nd JayXon 🇺🇸 876 117 2ms 5 Oct 2024 123rd edsrzf 🇳🇿 875 110 7ms 25 days ago 124th DialFrost 🇸🇬 874 74 111ms 17 Mar 2025 124th albanian-laundromat 🇺🇸 874 74 21ms 3 Nov 2025 124th plcc0 874 74 18ms 12 Jan 2026 127th edsrzf 🇳🇿 874 107 411ms 20 Feb 2026 128th sean-niemann 🇺🇸 873 66 458ms 30 Dec 2025 129th KasperKivimaeki 🇫🇮 873 79 2ms 6 Dec 2025 130th Shanethegamer 🇺🇸 873 91 2ms 4 Oct 2024 131st ovs-code 🇩🇪 873 127 127ms 2 Oct 2024 132nd ovs-code 🇩🇪 872 55 36ms 5 Oct 2024 133rd Natanaelel 🇸🇪 872 74 10ms 1 Oct 2024 133rd helbling 🇨🇭 872 74 12ms 1 Oct 2024 133rd Irratix 🇳🇱 872 74 12ms 14 Oct 2024 133rd emgordon154 872 74 10ms 18 Nov 2024 137th JayXon 🇺🇸 870 104 84ms 6 Oct 2024 138th GrayJoKing 🇦🇺 869 87 11ms 25 Nov 2025 139th kumavale 869 108 151ms 10 days ago 140th emgordon154 868 77 2,568ms 8 Nov 2024 141st kg583 🇺🇸 867 111 7ms 20 Feb 2026 142nd UnderKoen 🇳🇱 865 86 7ms 4 Oct 2024 143rd JayXon 🇺🇸 865 95 445ms 4 Oct 2024 144th pardouin 🇫🇷 863 66 1,435ms 10 Apr 2025 145th ovs-code 🇩🇪 862 29 43ms 4 Oct 2024 146th tomtheisen 🇺🇸 862 83 437ms 10 Feb 2025 147th edsrzf 🇳🇿 862 90 104ms 18 Dec 2025 147th snoozingnewt 🇨🇦 862 90 97ms 2 days ago 149th Natanaelel 🇸🇪 861 33 2ms 6 Oct 2024 149th GrayJoKing 🇦🇺 861 33 2ms 6 Jun 2025 149th SirBogman 🇺🇸 861 33 2ms 8 Jul 2025 152nd edsrzf 🇳🇿 861 82 5ms 20 days ago 153rd kg583 🇺🇸 860 67 441ms 1 Oct 2024 154th nwellnhof 🇩🇪 860 68 9ms 5 Oct 2024 155th voytxt 🇨🇿 860 75 11ms 1 Oct 2024 155th MeWhenI 🇻🇦 860 75 13ms 2 Oct 2024 155th m-tkach 🇺🇦 860 75 12ms 5 Oct 2024 155th error256 860 75 11ms 7 Oct 2024 159th kg583 🇺🇸 860 93 8ms 20 Feb 2026 160th ovs-code 🇩🇪 859 46 5ms 4 Oct 2024 First Prev 81–160 of 961 Next Last