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 JayXon 🇺🇸 889 134 289ms 3 Oct 2024 82nd MeWhenI 🇻🇦 888 64 1,305ms 3 Oct 2024 83rd kgolf 887 32 3ms 15 Apr 2025 84th rucin93 🇵🇱 887 78 2ms 18 Nov 2025 84th JayXon 🇺🇸 887 78 2ms 19 Nov 2025 84th sean-niemann 🇺🇸 887 78 2ms 19 Nov 2025 87th MeWhenI 🇻🇦 886 54 35ms 3 Oct 2024 87th error256 886 54 38ms 7 Oct 2024 87th nwellnhof 🇩🇪 886 54 38ms 13 Oct 2024 87th sean-niemann 🇺🇸 886 54 37ms 12 Oct 2025 91st canissimia 🇦🇶 886 66 8ms 1 Oct 2024 92nd moustave 885 73 22ms 5 Nov 2024 92nd emgordon154 885 73 18ms 18 Nov 2024 94th nwellnhof 🇩🇪 883 135 312ms 16 Oct 2024 95th dmrichwa 🇺🇸 882 73 12ms 5 Oct 2024 95th DialFrost 🇸🇬 882 73 11ms 12 Oct 2024 97th GrayJoKing 🇦🇺 881 90 2ms 3 Oct 2024 97th FlyingPenguin223 881 90 2ms 16 Oct 2024 99th acotis 880 106 139ms 29 May 2025 100th ovs-code 🇩🇪 878 69 4ms 4 Oct 2024 100th edsrzf 🇳🇿 878 69 4ms 10 Nov 2025 102nd sean-niemann 🇺🇸 878 76 2,410ms 24 Oct 2024 103rd JayXon 🇺🇸 878 93 108ms 14 Oct 2024 104th JayXon 🇺🇸 877 95 374ms 23 Jul 2025 105th edsrzf 🇳🇿 876 79 2ms 18 Nov 2025 106th JayXon 🇺🇸 876 84 120ms 24 May 2025 107th edsrzf 🇳🇿 876 91 7ms 16 Aug 2025 108th JayXon 🇺🇸 875 79 119ms 17 Oct 2024 109th edsrzf 🇳🇿 874 113 6ms 12 days ago 110th albanian-laundromat 873 74 18ms 3 Nov 2025 110th plcc0 873 74 19ms 12 Jan 2026 112th ovs-code 🇩🇪 873 127 127ms 2 Oct 2024 113th sean-niemann 🇺🇸 871 66 346ms 30 Dec 2025 114th KasperKivimaeki 🇫🇮 871 79 2ms 6 Dec 2025 115th Shanethegamer 🇺🇸 871 91 2ms 4 Oct 2024 116th ovs-code 🇩🇪 870 55 39ms 5 Oct 2024 117th Natanaelel 🇸🇪 870 74 11ms 1 Oct 2024 117th helbling 🇨🇭 870 74 10ms 1 Oct 2024 117th Irratix 🇳🇱 870 74 10ms 14 Oct 2024 117th emgordon154 870 74 9ms 18 Nov 2024 121st JayXon 🇺🇸 869 117 2ms 5 Oct 2024 122nd DialFrost 🇸🇬 868 74 105ms 17 Mar 2025 123rd emgordon154 867 77 2,406ms 8 Nov 2024 124th UnderKoen 🇳🇱 865 86 7ms 4 Oct 2024 125th JayXon 🇺🇸 865 104 89ms 6 Oct 2024 126th GrayJoKing 🇦🇺 864 87 12ms 25 Nov 2025 127th edsrzf 🇳🇿 864 138 295ms 19 Dec 2025 128th ovs-code 🇩🇪 862 29 40ms 4 Oct 2024 129th anter69 🇭🇺 862 75 18ms 11 Oct 2024 130th pardouin 🇫🇷 861 66 1,435ms 10 Apr 2025 131st Natanaelel 🇸🇪 860 33 2ms 6 Oct 2024 131st GrayJoKing 🇦🇺 860 33 2ms 6 Jun 2025 131st SirBogman 🇺🇸 860 33 2ms 8 Jul 2025 134th nwellnhof 🇩🇪 860 68 9ms 5 Oct 2024 135th tomtheisen 🇺🇸 860 83 443ms 10 Feb 2025 136th kg583 🇺🇸 858 67 424ms 1 Oct 2024 137th voytxt 🇨🇿 858 75 10ms 1 Oct 2024 137th MeWhenI 🇻🇦 858 75 11ms 2 Oct 2024 137th m-tkach 🇺🇦 858 75 9ms 5 Oct 2024 137th error256 858 75 10ms 7 Oct 2024 141st edsrzf 🇳🇿 858 86 4ms 24 Jul 2025 142nd stefangimmillaro 857 139 303ms 3 Oct 2024 143rd edsrzf 🇳🇿 856 90 128ms 18 Dec 2025 144th ovs-code 🇩🇪 855 46 4ms 4 Oct 2024 144th nwellnhof 🇩🇪 855 46 4ms 7 Oct 2024 146th m-tkach 🇺🇦 855 87 7ms 6 Oct 2024 147th Steffan153 🇫🇮 854 56 36ms 6 hours ago 148th JayXon 🇺🇸 853 95 424ms 4 Oct 2024 149th sean-niemann 🇺🇸 852 51 2ms 2 Oct 2024 150th sean-niemann 🇺🇸 852 68 131ms 1 Oct 2024 151st lifthrasiir 🇰🇷 850 76 10ms 16 Nov 2024 151st snoozingnewt 🇨🇦 850 76 11ms 6 Dec 2025 153rd MostParsingVex 850 100 1,024ms 1 Oct 2024 154th edsrzf 🇳🇿 850 137 44ms 16 Aug 2025 155th error256 849 106 85ms 8 Oct 2024 156th emgordon154 848 67 1,283ms 18 Nov 2024 157th kg583 🇺🇸 848 94 7ms 17 Oct 2025 158th primo-ppcg 🇹🇭 846 128 41ms 27 Apr 2025 159th lynn 846 131 138ms 8 Jan 2025 160th duckyluuk 🇳🇱 845 68 357ms 4 Oct 2024 First Prev 81–160 of 884 Next Last