Card Number Validation in all languages in bytes. 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 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 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 United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle 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 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 Groovy Harbour Hare Haxe Hush Hy iogii 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 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 Groovy Harbour Hare Haxe Hush Hy iogii 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 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 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 United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 76th MeWhenI 🇻🇦 885 64 3 Oct 2024 77th nwellnhof 🇩🇪 885 80 2 Oct 2024 77th Yax42 🇫🇷 885 80 7 Feb 2025 79th error256 884 68 2 May 2025 80th MeWhenI 🇻🇦 883 54 3 Oct 2024 80th error256 883 54 7 Oct 2024 80th nwellnhof 🇩🇪 883 54 13 Oct 2024 83rd nwellnhof 🇩🇪 883 90 1 Oct 2024 83rd ovs-code 🇩🇪 883 90 3 Oct 2024 83rd kg583 🇺🇸 883 90 9 Oct 2024 83rd sean-niemann 🇺🇸 883 90 23 Dec 2024 83rd ryyyn 🇺🇸 883 90 7 days ago 88th JayXon 🇺🇸 882 134 3 Oct 2024 89th dmrichwa 🇺🇸 880 73 5 Oct 2024 89th DialFrost 🇸🇬 880 73 12 Oct 2024 91st lyphyser 879 41 1 Oct 2024 92nd acotis 877 106 29 May 2025 93rd nwellnhof 🇩🇪 877 133 7 Oct 2024 94th GrayJoKing 🇦🇺 876 90 3 Oct 2024 94th FlyingPenguin223 876 90 16 Oct 2024 94th edsrzf 🇳🇿 876 90 8 days ago 97th JayXon 🇺🇸 875 79 17 Oct 2024 98th rhdqor213 875 80 2 Oct 2024 98th KasperKivimaeki 🇫🇮 875 80 16 Oct 2024 98th edsrzf 🇳🇿 875 80 7 days ago 101st nwellnhof 🇩🇪 875 135 16 Oct 2024 102nd sean-niemann 🇺🇸 874 76 24 Oct 2024 103rd JayXon 🇺🇸 874 95 10 days ago 104th 5cw 🇺🇸 873 91 1 Oct 2024 104th stefangimmillaro 873 91 13 Oct 2024 104th duckyluuk 🇳🇱 873 91 18 Oct 2024 104th GrayJoKing 🇦🇺 873 91 2 Jul 2025 108th edsrzf 🇳🇿 870 115 9 days ago 109th JayXon 🇺🇸 869 117 5 Oct 2024 110th Natanaelel 🇸🇪 868 74 1 Oct 2024 110th helbling 🇨🇭 868 74 1 Oct 2024 110th Irratix 🇳🇱 868 74 14 Oct 2024 110th emgordon154 868 74 18 Nov 2024 114th error256 868 109 9 days ago 114th edsrzf 🇳🇿 868 109 9 days ago 116th pardouin 🇫🇷 867 55 3 Oct 2024 116th ovs-code 🇩🇪 867 55 5 Oct 2024 118th AlephSquirrel 867 76 1 Oct 2024 119th JayXon 🇺🇸 866 84 24 May 2025 120th Shanethegamer 🇺🇸 866 91 4 Oct 2024 121st JayXon 🇺🇸 866 93 14 Oct 2024 122nd ovs-code 🇩🇪 866 127 2 Oct 2024 123rd ovs-code 🇩🇪 865 69 4 Oct 2024 124th UnderKoen 🇳🇱 865 86 4 Oct 2024 125th ovs-code 🇩🇪 864 78 2 Oct 2024 126th Shanethegamer 🇺🇸 864 92 3 Oct 2024 126th error256 864 92 7 Oct 2024 126th thatbirdguythatuknownot 864 92 14 Oct 2024 129th emgordon154 863 77 8 Nov 2024 130th ovs-code 🇩🇪 862 29 4 Oct 2024 131st sean-niemann 🇺🇸 861 51 2 Oct 2024 132nd Natanaelel 🇸🇪 860 33 6 Oct 2024 132nd GrayJoKing 🇦🇺 860 33 6 Jun 2025 132nd SirBogman 🇺🇸 860 33 25 days ago 135th nwellnhof 🇩🇪 860 68 5 Oct 2024 136th zacjl 860 110 10 Oct 2024 137th pardouin 🇫🇷 859 66 10 Apr 2025 138th voytxt 🇨🇿 856 75 1 Oct 2024 138th MeWhenI 🇻🇦 856 75 2 Oct 2024 138th m-tkach 🇺🇦 856 75 5 Oct 2024 138th error256 856 75 7 Oct 2024 142nd m-tkach 🇺🇦 855 87 6 Oct 2024 143rd Bulmenisaurus 855 93 6 Oct 2024 143rd lynn 855 93 8 Jan 2025 145th MeWhenI 🇻🇦 854 92 24 Dec 2024 146th xsot 🇸🇬 853 82 6 May 2025 147th tomtheisen 🇺🇸 853 83 10 Feb 2025 148th JayXon 🇺🇸 853 95 4 Oct 2024 149th ovs-code 🇩🇪 851 46 4 Oct 2024 149th nwellnhof 🇩🇪 851 46 7 Oct 2024 Prev 76–150 of 730 Next