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 81st MeWhenI 🇻🇦 888 64 1,305ms 3 Oct 2024 82nd kgolf 887 32 3ms 15 Apr 2025 83rd rucin93 🇵🇱 887 78 2ms 18 Nov 2025 83rd JayXon 🇺🇸 887 78 2ms 19 Nov 2025 83rd sean-niemann 🇺🇸 887 78 2ms 19 Nov 2025 86th MeWhenI 🇻🇦 886 54 35ms 3 Oct 2024 86th error256 886 54 38ms 7 Oct 2024 86th nwellnhof 🇩🇪 886 54 38ms 13 Oct 2024 86th sean-niemann 🇺🇸 886 54 37ms 12 Oct 2025 90th canissimia 🇦🇶 886 66 8ms 1 Oct 2024 91st moustave 885 73 22ms 5 Nov 2024 91st emgordon154 885 73 18ms 18 Nov 2024 93rd sean-niemann 🇺🇸 884 66 1,171ms 31 Aug 2025 93rd edsrzf 🇳🇿 884 66 1,020ms 4 Sep 2025 95th nwellnhof 🇩🇪 883 135 304ms 16 Oct 2024 96th dmrichwa 🇺🇸 882 73 9ms 5 Oct 2024 96th DialFrost 🇸🇬 882 73 10ms 12 Oct 2024 98th GrayJoKing 🇦🇺 881 90 2ms 3 Oct 2024 98th FlyingPenguin223 881 90 2ms 16 Oct 2024 100th acotis 880 106 144ms 29 May 2025 101st ovs-code 🇩🇪 878 69 4ms 4 Oct 2024 101st edsrzf 🇳🇿 878 69 4ms 10 Nov 2025 103rd sean-niemann 🇺🇸 878 76 2,410ms 24 Oct 2024 104th JayXon 🇺🇸 878 93 108ms 14 Oct 2024 105th JayXon 🇺🇸 877 95 374ms 23 Jul 2025 106th edsrzf 🇳🇿 876 79 2ms 18 Nov 2025 107th JayXon 🇺🇸 876 84 120ms 24 May 2025 108th edsrzf 🇳🇿 876 91 7ms 16 Aug 2025 109th JayXon 🇺🇸 875 79 119ms 17 Oct 2024 110th edsrzf 🇳🇿 874 113 6ms 18 days ago 111th albanian-laundromat 873 74 18ms 3 Nov 2025 111th plcc0 873 74 19ms 12 Jan 2026 113th ovs-code 🇩🇪 873 127 127ms 2 Oct 2024 114th sean-niemann 🇺🇸 871 66 346ms 30 Dec 2025 115th KasperKivimaeki 🇫🇮 871 79 2ms 6 Dec 2025 116th Shanethegamer 🇺🇸 871 91 2ms 4 Oct 2024 117th ovs-code 🇩🇪 870 55 39ms 5 Oct 2024 117th Steffan153 🇫🇮 870 55 39ms 46 mins ago 119th Natanaelel 🇸🇪 870 74 9ms 1 Oct 2024 119th helbling 🇨🇭 870 74 10ms 1 Oct 2024 119th Irratix 🇳🇱 870 74 10ms 14 Oct 2024 119th emgordon154 870 74 9ms 18 Nov 2024 123rd JayXon 🇺🇸 869 117 2ms 5 Oct 2024 124th DialFrost 🇸🇬 868 74 105ms 17 Mar 2025 125th emgordon154 867 77 2,406ms 8 Nov 2024 126th UnderKoen 🇳🇱 865 86 7ms 4 Oct 2024 127th JayXon 🇺🇸 865 104 89ms 6 Oct 2024 128th GrayJoKing 🇦🇺 864 87 12ms 25 Nov 2025 129th edsrzf 🇳🇿 864 138 295ms 19 Dec 2025 130th ovs-code 🇩🇪 862 29 40ms 4 Oct 2024 131st anter69 🇭🇺 862 75 18ms 11 Oct 2024 132nd pardouin 🇫🇷 861 66 1,435ms 10 Apr 2025 133rd Natanaelel 🇸🇪 860 33 2ms 6 Oct 2024 133rd GrayJoKing 🇦🇺 860 33 2ms 6 Jun 2025 133rd SirBogman 🇺🇸 860 33 2ms 8 Jul 2025 136th nwellnhof 🇩🇪 860 68 9ms 5 Oct 2024 137th tomtheisen 🇺🇸 860 83 443ms 10 Feb 2025 138th kg583 🇺🇸 858 67 424ms 1 Oct 2024 139th voytxt 🇨🇿 858 75 11ms 1 Oct 2024 139th MeWhenI 🇻🇦 858 75 12ms 2 Oct 2024 139th m-tkach 🇺🇦 858 75 10ms 5 Oct 2024 139th error256 858 75 10ms 7 Oct 2024 143rd edsrzf 🇳🇿 858 86 4ms 24 Jul 2025 144th stefangimmillaro 857 139 293ms 3 Oct 2024 145th edsrzf 🇳🇿 856 90 128ms 18 Dec 2025 146th ovs-code 🇩🇪 855 46 4ms 4 Oct 2024 146th nwellnhof 🇩🇪 855 46 4ms 7 Oct 2024 148th m-tkach 🇺🇦 855 87 7ms 6 Oct 2024 149th JayXon 🇺🇸 853 95 445ms 4 Oct 2024 150th sean-niemann 🇺🇸 852 51 2ms 2 Oct 2024 151st sean-niemann 🇺🇸 852 68 131ms 1 Oct 2024 152nd lifthrasiir 🇰🇷 850 76 10ms 16 Nov 2024 152nd snoozingnewt 🇨🇦 850 76 11ms 6 Dec 2025 154th MostParsingVex 850 100 1,024ms 1 Oct 2024 155th edsrzf 🇳🇿 850 137 44ms 16 Aug 2025 156th error256 849 106 85ms 8 Oct 2024 157th emgordon154 848 67 1,283ms 18 Nov 2024 158th kg583 🇺🇸 848 94 7ms 17 Oct 2025 159th primo-ppcg 🇹🇭 846 128 41ms 27 Apr 2025 160th lynn 846 131 138ms 8 Jan 2025 First Prev 81–160 of 885 Next Last