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 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 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 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 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 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 Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 80th edsrzf 🇳🇿 895 72 15ms 20 Feb 2026 82nd pardouin 🇫🇷 894 65 135ms 2 Oct 2024 83rd canissimia 🇦🇶 893 28 43ms 2 Oct 2024 84th error256 893 60 1,103ms 1 Feb 2026 85th ovs-code 🇩🇪 893 63 524ms 1 Oct 2024 86th nwellnhof 🇩🇪 892 80 422ms 2 Oct 2024 86th Yax42 🇫🇷 892 80 427ms 7 Feb 2025 88th rucin93 🇵🇱 890 78 2ms 18 Nov 2025 88th JayXon 🇺🇸 890 78 2ms 19 Nov 2025 88th sean-niemann 🇺🇸 890 78 2ms 19 Nov 2025 88th edsrzf 🇳🇿 890 78 2ms 20 Feb 2026 88th Steffan153 🇫🇮 890 78 2ms 20 Feb 2026 93rd GrayJoKing 🇦🇺 889 60 4ms 3 Oct 2024 94th nwellnhof 🇩🇪 889 105 627ms 25 Sep 2025 95th JayXon 🇺🇸 889 134 292ms 3 Oct 2024 96th MeWhenI 🇻🇦 888 64 1,305ms 3 Oct 2024 97th kgolf 887 32 3ms 15 Apr 2025 98th MeWhenI 🇻🇦 886 54 36ms 3 Oct 2024 98th error256 886 54 37ms 7 Oct 2024 98th nwellnhof 🇩🇪 886 54 34ms 13 Oct 2024 98th sean-niemann 🇺🇸 886 54 39ms 12 Oct 2025 102nd canissimia 🇦🇶 886 66 8ms 1 Oct 2024 103rd moustave 885 73 22ms 5 Nov 2024 103rd emgordon154 885 73 18ms 18 Nov 2024 105th dmrichwa 🇺🇸 883 73 10ms 5 Oct 2024 105th DialFrost 🇸🇬 883 73 9ms 12 Oct 2024 107th nwellnhof 🇩🇪 883 135 289ms 16 Oct 2024 107th edsrzf 🇳🇿 883 135 272ms 21 Feb 2026 109th GrayJoKing 🇦🇺 881 90 2ms 3 Oct 2024 109th FlyingPenguin223 881 90 2ms 16 Oct 2024 111th acotis 881 106 147ms 29 May 2025 112th JayXon 🇺🇸 879 79 114ms 17 Oct 2024 113th ovs-code 🇩🇪 878 69 4ms 4 Oct 2024 113th edsrzf 🇳🇿 878 69 4ms 10 Nov 2025 115th sean-niemann 🇺🇸 878 76 2,802ms 24 Oct 2024 116th JayXon 🇺🇸 878 93 106ms 14 Oct 2024 117th JayXon 🇺🇸 877 95 384ms 23 Jul 2025 118th JayXon 🇺🇸 876 84 175ms 24 May 2025 119th edsrzf 🇳🇿 876 91 8ms 16 Aug 2025 120th edsrzf 🇳🇿 875 110 7ms 10 mins ago 121st xsot 🇸🇬 874 66 782ms 27 days ago 122nd albanian-laundromat 873 74 17ms 3 Nov 2025 122nd plcc0 873 74 17ms 12 Jan 2026 124th edsrzf 🇳🇿 873 107 411ms 20 Feb 2026 125th ovs-code 🇩🇪 873 127 127ms 2 Oct 2024 126th sean-niemann 🇺🇸 872 66 346ms 30 Dec 2025 127th JayXon 🇺🇸 872 117 2ms 5 Oct 2024 128th Natanaelel 🇸🇪 871 74 13ms 1 Oct 2024 128th helbling 🇨🇭 871 74 14ms 1 Oct 2024 128th Irratix 🇳🇱 871 74 10ms 14 Oct 2024 128th emgordon154 871 74 9ms 18 Nov 2024 132nd KasperKivimaeki 🇫🇮 871 79 2ms 6 Dec 2025 133rd Shanethegamer 🇺🇸 871 91 2ms 4 Oct 2024 134th ovs-code 🇩🇪 870 55 36ms 5 Oct 2024 135th GrayJoKing 🇦🇺 869 87 12ms 25 Nov 2025 136th DialFrost 🇸🇬 868 74 111ms 17 Mar 2025 137th emgordon154 867 77 2,868ms 8 Nov 2024 138th kg583 🇺🇸 867 111 7ms 20 Feb 2026 139th UnderKoen 🇳🇱 865 86 7ms 4 Oct 2024 140th JayXon 🇺🇸 865 104 84ms 6 Oct 2024 141st ovs-code 🇩🇪 862 29 43ms 4 Oct 2024 142nd pardouin 🇫🇷 861 66 1,435ms 10 Apr 2025 143rd Natanaelel 🇸🇪 860 33 2ms 6 Oct 2024 143rd GrayJoKing 🇦🇺 860 33 2ms 6 Jun 2025 143rd SirBogman 🇺🇸 860 33 2ms 8 Jul 2025 146th nwellnhof 🇩🇪 860 68 9ms 5 Oct 2024 147th tomtheisen 🇺🇸 860 83 440ms 10 Feb 2025 148th edsrzf 🇳🇿 860 84 4ms 20 Feb 2026 149th kg583 🇺🇸 859 67 424ms 1 Oct 2024 150th voytxt 🇨🇿 859 75 10ms 1 Oct 2024 150th MeWhenI 🇻🇦 859 75 12ms 2 Oct 2024 150th m-tkach 🇺🇦 859 75 9ms 5 Oct 2024 150th error256 859 75 10ms 7 Oct 2024 154th kg583 🇺🇸 857 93 8ms 20 Feb 2026 155th stefangimmillaro 857 139 287ms 3 Oct 2024 156th ovs-code 🇩🇪 856 46 4ms 4 Oct 2024 156th nwellnhof 🇩🇪 856 46 5ms 7 Oct 2024 158th edsrzf 🇳🇿 856 90 104ms 18 Dec 2025 159th m-tkach 🇺🇦 855 87 7ms 6 Oct 2024 160th sean-niemann 🇺🇸 854 68 139ms 1 Oct 2024 First Prev 81–160 of 909 Next Last