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 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 Multitap Input 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 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 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 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 Multitap Input 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 161st m-tkach 🇺🇦 842 144 79ms 8 Oct 2024 162nd edsrzf 🇳🇿 840 111 395ms 25 days ago 163rd sean-niemann 🇺🇸 840 121 3ms 30 Nov 2024 164th jatloe 839 77 10ms 1 Oct 2024 165th emplv 🇱🇻 839 142 264ms 2 Oct 2024 165th sean-niemann 🇺🇸 839 142 264ms 2 Oct 2024 167th xsot 🇸🇬 838 57 39ms 6 May 2025 168th Shanethegamer 🇺🇸 838 67 290ms 3 Oct 2024 168th antimon2 🇯🇵 838 67 512ms 9 Oct 2024 170th KasperKivimaeki 🇫🇮 838 103 428ms 8 Dec 2025 171st xsot 🇸🇬 837 82 2ms 6 May 2025 172nd snoozingnewt 🇨🇦 837 92 96ms 26 days ago 173rd JayXon 🇺🇸 837 109 1,287ms 5 Oct 2024 174th GrayJoKing 🇦🇺 836 47 4ms 1 Oct 2024 175th stefangimmillaro 836 68 1,045ms 2 Oct 2024 176th Shanethegamer 🇺🇸 836 77 11ms 1 Oct 2024 176th edsrzf 🇳🇿 836 77 10ms 10 May 2025 176th biocommando 🇫🇮 836 77 10ms 13 Jun 2025 179th m-tkach 🇺🇦 836 138 27ms 3 Oct 2024 180th emplv 🇱🇻 836 145 25ms 24 Oct 2024 181st sean-niemann 🇺🇸 835 114 42ms 2 Oct 2024 182nd edsrzf 🇳🇿 835 115 4ms 25 days ago 183rd sean-niemann 🇺🇸 834 81 13ms 20 Dec 2024 184th emgordon154 833 69 441ms 18 Nov 2024 185th edsrzf 🇳🇿 833 108 75ms 26 Jul 2025 186th stefangimmillaro 833 112 145ms 4 Oct 2024 187th MeWhenI 🇻🇦 833 130 40ms 3 Oct 2024 188th edsrzf 🇳🇿 833 133 154ms 25 days ago 189th MeWhenI 🇻🇦 833 143 263ms 2 Oct 2024 190th ovs-code 🇩🇪 833 200 1,712ms 19 Apr 2025 191st stefangimmillaro 832 80 3,230ms 12 Nov 2024 192nd JayXon 🇺🇸 832 155 2,650ms 3 Oct 2024 193rd edsrzf 🇳🇿 830 139 27ms 25 days ago 194th qpwoeirut 828 78 10ms 1 Oct 2025 195th dcgjb 825 78 11ms 6 May 2025 196th stefangimmillaro 825 99 109ms 3 Oct 2024 197th m-tkach 🇺🇦 824 58 38ms 8 Oct 2024 198th retrohun 824 71 9ms 10 Jan 2025 199th ovs-code 🇩🇪 823 78 111ms 2 Oct 2024 200th primo-ppcg 🇹🇭 822 232 525ms 13 Aug 2025 201st albanian-laundromat 821 70 428ms 3 Nov 2025 202nd ovs-code 🇩🇪 820 65 5ms 30 Oct 2024 203rd kg583 🇺🇸 820 142 41ms 14 Feb 2025 204th sean-niemann 🇺🇸 819 48 4ms 9 Aug 2025 205th MeWhenI 🇻🇦 818 114 494ms 7 Nov 2025 206th MeWhenI 🇻🇦 818 183 14ms 2 Oct 2024 207th nwellnhof 🇩🇪 817 84 2ms 2 Oct 2024 207th ovs-code 🇩🇪 817 84 1ms 2 Nov 2024 207th inventshah 817 84 2ms 31 Mar 2025 210th MeWhenI 🇻🇦 817 92 10ms 24 Dec 2024 211th MeWhenI 🇻🇦 817 104 1,026ms 2 Oct 2024 212th canissimia 🇦🇶 817 130 3ms 4 Oct 2024 213th rucin93 🇵🇱 816 71 126ms 17 Dec 2024 214th ovs-code 🇩🇪 815 106 394ms 1 Oct 2024 214th inventshah 815 106 405ms 1 Oct 2024 216th lifthrasiir 🇰🇷 815 197 10ms 19 Dec 2024 217th sisyphus-ppcg 🇦🇺 814 83 11ms 2 Oct 2024 218th MeWhenI 🇻🇦 814 85 2ms 5 Oct 2024 219th MeWhenI 🇻🇦 813 85 110ms 4 Oct 2024 220th albanian-laundromat 813 118 4ms 11 Dec 2025 221st emgordon154 813 205 1,497ms 7 Mar 2025 222nd Shanethegamer 🇺🇸 812 70 986ms 9 Apr 2025 223rd sean-niemann 🇺🇸 811 115 480ms 24 Sep 2025 223rd stefangimmillaro 811 115 463ms 6 Oct 2025 225th anter69 🇭🇺 810 59 70ms 11 Oct 2024 225th Natanaelel 🇸🇪 810 59 35ms 7 Feb 2025 227th lifthrasiir 🇰🇷 810 71 398ms 2 Dec 2024 228th kg583 🇺🇸 810 124 7ms 20 Oct 2024 228th AlephSquirrel 810 124 7ms 21 Oct 2024 230th stefangimmillaro 808 134 41ms 3 Oct 2024 231st saito-ta 🇯🇵 807 85 1ms 1 Oct 2024 232nd stefangimmillaro 807 126 2ms 3 Oct 2024 233rd GolfingSuccess 🇬🇷 806 31 71ms 5 Oct 2024 234th emgordon154 805 72 120ms 2 Oct 2024 235th trinityy-7 805 80 9ms 23 Jul 2025 236th albanian-laundromat 805 148 255ms 3 Dec 2025 237th error256 804 116 421ms 24 Sep 2025 238th GrayJoKing 🇦🇺 803 58 6ms 24 Oct 2024 239th xsot 🇸🇬 803 125 7ms 20 Oct 2024 240th Shanethegamer 🇺🇸 803 138 142ms 3 Oct 2024 First Prev 161–240 of 858 Next Last