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 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 Chars Time 76th error256 884 68 2 May 2025 77th pardouin 🇫🇷 883 54 1 Oct 2024 77th MeWhenI 🇻🇦 883 54 3 Oct 2024 77th error256 883 54 7 Oct 2024 77th nwellnhof 🇩🇪 883 54 13 Oct 2024 81st moustave 883 73 5 Nov 2024 81st emgordon154 883 73 18 Nov 2024 83rd JayXon 🇺🇸 882 134 3 Oct 2024 84th dmrichwa 🇺🇸 880 73 5 Oct 2024 84th DialFrost 🇸🇬 880 73 12 Oct 2024 86th acotis 877 106 29 May 2025 87th nwellnhof 🇩🇪 877 133 7 Oct 2024 88th GrayJoKing 🇦🇺 876 90 3 Oct 2024 88th FlyingPenguin223 876 90 16 Oct 2024 88th edsrzf 🇳🇿 876 90 9 days ago 91st JayXon 🇺🇸 875 79 17 Oct 2024 92nd KasperKivimaeki 🇫🇮 875 80 16 Oct 2024 92nd edsrzf 🇳🇿 875 80 8 days ago 94th nwellnhof 🇩🇪 875 135 16 Oct 2024 95th sean-niemann 🇺🇸 874 76 24 Oct 2024 96th JayXon 🇺🇸 874 95 12 days ago 96th kg583 🇺🇸 874 95 46 hours ago 98th edsrzf 🇳🇿 870 115 11 days ago 99th JayXon 🇺🇸 869 117 5 Oct 2024 100th Natanaelel 🇸🇪 868 74 1 Oct 2024 100th helbling 🇨🇭 868 74 1 Oct 2024 100th Irratix 🇳🇱 868 74 14 Oct 2024 100th emgordon154 868 74 18 Nov 2024 100th DialFrost 🇸🇬 868 74 17 Mar 2025 105th ovs-code 🇩🇪 867 55 5 Oct 2024 106th JayXon 🇺🇸 866 84 24 May 2025 107th Shanethegamer 🇺🇸 866 91 4 Oct 2024 108th JayXon 🇺🇸 866 93 14 Oct 2024 109th ovs-code 🇩🇪 866 127 2 Oct 2024 110th ovs-code 🇩🇪 865 69 4 Oct 2024 111th UnderKoen 🇳🇱 865 86 4 Oct 2024 112th emgordon154 863 77 8 Nov 2024 113th ovs-code 🇩🇪 862 29 4 Oct 2024 114th sean-niemann 🇺🇸 861 51 2 Oct 2024 115th Natanaelel 🇸🇪 860 33 6 Oct 2024 115th GrayJoKing 🇦🇺 860 33 6 Jun 2025 115th SirBogman 🇺🇸 860 33 26 days ago 118th nwellnhof 🇩🇪 860 68 5 Oct 2024 119th pardouin 🇫🇷 859 66 10 Apr 2025 120th anter69 🇭🇺 859 75 11 Oct 2024 121st voytxt 🇨🇿 856 75 1 Oct 2024 121st MeWhenI 🇻🇦 856 75 2 Oct 2024 121st m-tkach 🇺🇦 856 75 5 Oct 2024 121st error256 856 75 7 Oct 2024 125th m-tkach 🇺🇦 855 87 6 Oct 2024 126th kg583 🇺🇸 854 67 1 Oct 2024 127th MeWhenI 🇻🇦 854 92 24 Dec 2024 128th xsot 🇸🇬 853 82 6 May 2025 129th tomtheisen 🇺🇸 853 83 10 Feb 2025 130th JayXon 🇺🇸 853 95 4 Oct 2024 131st sean-niemann 🇺🇸 852 68 1 Oct 2024 132nd ovs-code 🇩🇪 851 46 4 Oct 2024 132nd nwellnhof 🇩🇪 851 46 7 Oct 2024 134th edsrzf 🇳🇿 850 86 11 days ago 135th MostParsingVex 850 100 1 Oct 2024 136th stefangimmillaro 850 139 3 Oct 2024 136th edsrzf 🇳🇿 850 139 11 days ago 138th lifthrasiir 🇰🇷 848 76 16 Nov 2024 139th JayXon 🇺🇸 848 104 6 Oct 2024 140th emgordon154 846 67 18 Nov 2024 141st JayXon 🇺🇸 846 155 3 Oct 2024 142nd AdrienHache 🇫🇷 843 84 11 days ago 143rd kg583 🇺🇸 843 142 14 Feb 2025 144th duckyluuk 🇳🇱 841 68 4 Oct 2024 145th CLOStrophobic 🇮🇹 840 119 24 Feb 2025 146th sean-niemann 🇺🇸 840 121 30 Nov 2024 147th lynn 840 131 8 Jan 2025 148th error256 839 94 7 Oct 2024 149th primo-ppcg 🇹🇭 839 128 27 Apr 2025 150th jatloe 837 77 1 Oct 2024 Prev 76–150 of 727 Next