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 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 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 Calendar 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 Multitap Input NFA Simulator 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 Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight 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 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 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 Calendar 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 Multitap Input NFA Simulator 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 76th JayXon 🇺🇸 889 134 260ms 3 Oct 2024 77th MeWhenI 🇻🇦 888 64 946ms 3 Oct 2024 78th nwellnhof 🇩🇪 888 105 339ms 25 Sep 2025 79th kgolf 887 32 3ms 15 Apr 2025 80th rucin93 🇵🇱 887 78 2ms 16 days ago 80th JayXon 🇺🇸 887 78 2ms 16 days ago 80th sean-niemann 🇺🇸 887 78 2ms 16 days ago 83rd canissimia 🇦🇶 886 66 8ms 1 Oct 2024 84th moustave 885 73 20ms 5 Nov 2024 84th emgordon154 885 73 16ms 18 Nov 2024 86th MeWhenI 🇻🇦 884 54 38ms 3 Oct 2024 86th error256 884 54 42ms 7 Oct 2024 86th nwellnhof 🇩🇪 884 54 48ms 13 Oct 2024 86th sean-niemann 🇺🇸 884 54 37ms 12 Oct 2025 90th error256 884 68 1,057ms 2 May 2025 91st nwellnhof 🇩🇪 883 135 258ms 16 Oct 2024 92nd dmrichwa 🇺🇸 882 73 10ms 5 Oct 2024 92nd DialFrost 🇸🇬 882 73 9ms 12 Oct 2024 94th GrayJoKing 🇦🇺 881 90 2ms 3 Oct 2024 94th FlyingPenguin223 881 90 2ms 16 Oct 2024 96th acotis 880 106 145ms 29 May 2025 97th ovs-code 🇩🇪 878 69 3ms 4 Oct 2024 97th edsrzf 🇳🇿 878 69 3ms 25 days ago 99th JayXon 🇺🇸 878 93 108ms 14 Oct 2024 100th JayXon 🇺🇸 877 95 365ms 23 Jul 2025 101st edsrzf 🇳🇿 876 79 2ms 17 days ago 102nd edsrzf 🇳🇿 876 91 6ms 16 Aug 2025 103rd JayXon 🇺🇸 875 79 96ms 17 Oct 2024 104th sean-niemann 🇺🇸 874 76 2,902ms 24 Oct 2024 105th albanian-laundromat 873 74 20ms 3 Nov 2025 106th edsrzf 🇳🇿 873 115 15ms 24 Jul 2025 107th JayXon 🇺🇸 871 84 108ms 24 May 2025 108th Shanethegamer 🇺🇸 871 91 2ms 4 Oct 2024 109th Natanaelel 🇸🇪 870 74 9ms 1 Oct 2024 109th helbling 🇨🇭 870 74 9ms 1 Oct 2024 109th Irratix 🇳🇱 870 74 9ms 14 Oct 2024 109th emgordon154 870 74 9ms 18 Nov 2024 113th ovs-code 🇩🇪 870 127 164ms 2 Oct 2024 114th JayXon 🇺🇸 869 117 2ms 5 Oct 2024 115th ovs-code 🇩🇪 868 55 39ms 5 Oct 2024 116th DialFrost 🇸🇬 868 74 99ms 17 Mar 2025 117th sean-niemann 🇺🇸 866 51 3ms 2 Oct 2024 118th UnderKoen 🇳🇱 865 86 7ms 4 Oct 2024 119th JayXon 🇺🇸 865 104 76ms 6 Oct 2024 120th GrayJoKing 🇦🇺 864 87 10ms 10 days ago 121st emgordon154 863 77 3,120ms 8 Nov 2024 122nd ovs-code 🇩🇪 862 29 45ms 4 Oct 2024 123rd pardouin 🇫🇷 861 66 1,028ms 10 Apr 2025 124th anter69 🇭🇺 861 75 16ms 11 Oct 2024 125th Natanaelel 🇸🇪 860 33 2ms 6 Oct 2024 125th GrayJoKing 🇦🇺 860 33 2ms 6 Jun 2025 125th SirBogman 🇺🇸 860 33 2ms 8 Jul 2025 128th nwellnhof 🇩🇪 860 68 9ms 5 Oct 2024 129th kg583 🇺🇸 858 67 372ms 1 Oct 2024 130th voytxt 🇨🇿 858 75 10ms 1 Oct 2024 130th MeWhenI 🇻🇦 858 75 9ms 2 Oct 2024 130th m-tkach 🇺🇦 858 75 9ms 5 Oct 2024 130th error256 858 75 10ms 7 Oct 2024 134th tomtheisen 🇺🇸 858 83 382ms 10 Feb 2025 135th edsrzf 🇳🇿 858 86 4ms 24 Jul 2025 136th KasperKivimaeki 🇫🇮 857 80 2ms 16 Oct 2024 137th stefangimmillaro 857 139 255ms 3 Oct 2024 137th edsrzf 🇳🇿 857 139 273ms 23 Jul 2025 139th m-tkach 🇺🇦 855 87 7ms 6 Oct 2024 140th ovs-code 🇩🇪 853 46 5ms 4 Oct 2024 140th nwellnhof 🇩🇪 853 46 5ms 7 Oct 2024 142nd JayXon 🇺🇸 853 95 424ms 4 Oct 2024 143rd sean-niemann 🇺🇸 852 68 121ms 1 Oct 2024 144th lifthrasiir 🇰🇷 850 76 9ms 16 Nov 2024 145th MostParsingVex 850 100 17ms 1 Oct 2024 146th edsrzf 🇳🇿 850 137 45ms 16 Aug 2025 147th error256 849 106 75ms 8 Oct 2024 148th emgordon154 848 67 1,010ms 18 Nov 2024 149th kg583 🇺🇸 848 94 6ms 17 Oct 2025 150th primo-ppcg 🇹🇭 846 128 43ms 27 Apr 2025 First Prev 76–150 of 835 Next Last