Card Number Validation in all languages in chars. Cheevos Holes Recent Holes Langs Medals Misc 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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir 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 Erlang 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 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 Erlang 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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Chars Time Submitted 76th MeWhenI 🇻🇦 888 64 946ms 3 Oct 2024 77th nwellnhof 🇩🇪 888 105 339ms 25 Sep 2025 78th JayXon 🇺🇸 888 134 263ms 3 Oct 2024 79th kgolf 887 32 3ms 15 Apr 2025 80th rucin93 🇵🇱 887 78 2ms 4 days ago 80th JayXon 🇺🇸 887 78 2ms 4 days ago 80th sean-niemann 🇺🇸 887 78 2ms 4 days ago 83rd canissimia 🇦🇶 886 66 9ms 1 Oct 2024 84th MeWhenI 🇻🇦 884 54 38ms 3 Oct 2024 84th error256 884 54 42ms 7 Oct 2024 84th nwellnhof 🇩🇪 884 54 48ms 13 Oct 2024 84th sean-niemann 🇺🇸 884 54 37ms 12 Oct 2025 88th error256 884 68 1,057ms 2 May 2025 89th moustave 884 73 22ms 5 Nov 2024 89th emgordon154 884 73 16ms 18 Nov 2024 91st dmrichwa 🇺🇸 881 73 10ms 5 Oct 2024 91st DialFrost 🇸🇬 881 73 10ms 12 Oct 2024 93rd GrayJoKing 🇦🇺 881 90 2ms 3 Oct 2024 93rd FlyingPenguin223 881 90 2ms 16 Oct 2024 95th nwellnhof 🇩🇪 881 135 255ms 16 Oct 2024 96th ovs-code 🇩🇪 878 69 3ms 4 Oct 2024 96th edsrzf 🇳🇿 878 69 4ms 13 days ago 98th KasperKivimaeki 🇫🇮 878 80 2ms 16 Oct 2024 99th JayXon 🇺🇸 878 93 108ms 14 Oct 2024 100th acotis 878 106 166ms 29 May 2025 101st JayXon 🇺🇸 877 95 365ms 23 Jul 2025 102nd edsrzf 🇳🇿 876 79 2ms 4 days ago 103rd edsrzf 🇳🇿 876 91 9ms 16 Aug 2025 104th JayXon 🇺🇸 875 79 105ms 17 Oct 2024 105th sean-niemann 🇺🇸 874 76 2,962ms 24 Oct 2024 106th edsrzf 🇳🇿 873 115 15ms 24 Jul 2025 107th albanian-laundromat 872 74 17ms 20 days ago 108th JayXon 🇺🇸 871 84 108ms 24 May 2025 109th Shanethegamer 🇺🇸 871 91 2ms 4 Oct 2024 110th ovs-code 🇩🇪 870 127 164ms 2 Oct 2024 111th Natanaelel 🇸🇪 869 74 9ms 1 Oct 2024 111th helbling 🇨🇭 869 74 9ms 1 Oct 2024 111th Irratix 🇳🇱 869 74 10ms 14 Oct 2024 111th emgordon154 869 74 9ms 18 Nov 2024 115th JayXon 🇺🇸 869 117 2ms 5 Oct 2024 116th ovs-code 🇩🇪 868 55 39ms 5 Oct 2024 117th DialFrost 🇸🇬 868 74 99ms 17 Mar 2025 118th sean-niemann 🇺🇸 866 51 3ms 2 Oct 2024 119th UnderKoen 🇳🇱 865 86 5ms 4 Oct 2024 120th JayXon 🇺🇸 865 104 78ms 6 Oct 2024 121st emgordon154 863 77 3,232ms 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 10ms 5 Oct 2024 129th voytxt 🇨🇿 858 75 9ms 1 Oct 2024 129th MeWhenI 🇻🇦 858 75 9ms 2 Oct 2024 129th m-tkach 🇺🇦 858 75 9ms 5 Oct 2024 129th error256 858 75 9ms 7 Oct 2024 133rd tomtheisen 🇺🇸 858 83 387ms 10 Feb 2025 134th edsrzf 🇳🇿 858 86 4ms 24 Jul 2025 135th kg583 🇺🇸 857 67 390ms 1 Oct 2024 136th xsot 🇸🇬 857 82 2ms 6 May 2025 137th stefangimmillaro 856 139 266ms 3 Oct 2024 137th edsrzf 🇳🇿 856 139 257ms 23 Jul 2025 139th m-tkach 🇺🇦 855 87 5ms 6 Oct 2024 140th MeWhenI 🇻🇦 854 92 10ms 24 Dec 2024 141st ovs-code 🇩🇪 853 46 5ms 4 Oct 2024 141st nwellnhof 🇩🇪 853 46 5ms 7 Oct 2024 143rd JayXon 🇺🇸 853 95 424ms 4 Oct 2024 144th sean-niemann 🇺🇸 852 68 121ms 1 Oct 2024 145th lifthrasiir 🇰🇷 850 76 11ms 16 Nov 2024 146th MostParsingVex 850 100 17ms 1 Oct 2024 147th edsrzf 🇳🇿 850 137 45ms 16 Aug 2025 148th error256 849 106 88ms 8 Oct 2024 149th emgordon154 848 67 1,010ms 18 Nov 2024 150th kg583 🇺🇸 848 94 11ms 17 Oct 2025 First Prev 76–150 of 822 Next Last