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 241st Shanethegamer 🇺🇸 803 138 142ms 3 Oct 2024 242nd stefangimmillaro 802 89 453ms 4 Oct 2024 243rd DialFrost 🇸🇬 802 106 24ms 23 Mar 2025 244th ovs-code 🇩🇪 802 119 14ms 1 Oct 2024 245th Kacarott 🇦🇺 801 73 1,111ms 1 Oct 2024 245th chunes3 🇺🇸 801 73 1,046ms 2 Oct 2024 247th MeWhenI 🇻🇦 801 127 2ms 5 Oct 2024 247th albanian-laundromat 801 127 3ms 3 Nov 2025 249th Shanethegamer 🇺🇸 801 208 1,477ms 14 Apr 2025 249th DialFrost 🇸🇬 801 208 1,420ms 18 Apr 2025 251st sean-niemann 🇺🇸 799 92 116ms 1 Oct 2025 252nd snoozingnewt 🇨🇦 798 72 361ms 6 Dec 2025 253rd Babafaba 798 81 19ms 11 Nov 2025 254th albanian-laundromat 797 74 765ms 3 Nov 2025 255th 2bular 796 49 31ms 8 Nov 2025 256th tayloia 🇬🇧 795 81 10ms 3 Oct 2024 256th targrik 795 81 10ms 8 Feb 2025 256th Lv0Sys 🇵🇱 795 81 10ms 10 Dec 2025 259th DialFrost 🇸🇬 795 85 8ms 1 Oct 2024 259th xsot 🇸🇬 795 85 4ms 7 Oct 2024 261st DialFrost 🇸🇬 794 84 2,265ms 26 Oct 2024 262nd stefangimmillaro 794 87 125ms 4 Oct 2024 263rd Shanethegamer 🇺🇸 794 102 384ms 4 Oct 2024 264th MeWhenI 🇻🇦 794 109 389ms 2 Oct 2024 265th Shanethegamer 🇺🇸 794 128 2ms 3 Oct 2024 266th MeWhenI 🇻🇦 793 90 461ms 2 Oct 2024 267th albanian-laundromat 793 120 42ms 3 Nov 2025 268th Natanaelel 🇸🇪 791 48 123ms 1 Oct 2024 269th jared-hughes 791 203 101ms 20 Dec 2024 270th saito-ta 🇯🇵 790 74 7ms 1 Oct 2024 271st emgordon154 789 151 253ms 17 Jan 2025 272nd SB-945 788 82 16ms 1 Oct 2024 272nd HumanoidCPU 788 82 61ms 7 Mar 2025 272nd fkantelberg 788 82 11ms 11 Jul 2025 272nd BrunoVisnadi 🇧🇷 788 82 10ms 21 Sep 2025 276th emgordon154 787 164 1,815ms 22 Dec 2025 277th KingSkyrock 🇺🇸 785 82 10ms 14 Oct 2024 278th Shanethegamer 🇺🇸 785 88 117ms 4 Oct 2024 279th kg583 🇺🇸 785 94 4ms 13 Nov 2025 280th namelessiw 785 119 440ms 9 Oct 2025 281st SirBogman 🇺🇸 785 138 39ms 11 Jul 2025 282nd Shanethegamer 🇺🇸 784 91 455ms 3 Oct 2024 283rd edsrzf 🇳🇿 784 119 150ms 23 Jul 2025 284th Shanethegamer 🇺🇸 784 152 249ms 3 Oct 2024 284th targrik 784 152 243ms 7 Jul 2025 286th stefangimmillaro 783 61 35ms 1 Oct 2024 287th SirBogman 🇺🇸 780 50 34ms 8 Jul 2025 288th ovs-code 🇩🇪 780 75 1,104ms 1 Oct 2024 289th MeWhenI 🇻🇦 780 88 1ms 2 Oct 2024 290th MeWhenI 🇻🇦 780 122 39ms 5 Oct 2024 291st sean-niemann 🇺🇸 779 107 332ms 3 Oct 2024 292nd Bmrl7 778 83 10ms 3 Oct 2024 292nd KatieLG 🇬🇧 778 83 18ms 5 days ago 294th Shanethegamer 🇺🇸 778 120 454ms 24 Sep 2025 295th bizy-coder 777 74 430ms 1 Oct 2024 295th m-tkach 🇺🇦 777 74 391ms 3 Oct 2024 297th DialFrost 🇸🇬 776 76 745ms 30 Aug 2025 298th adriweb 🇫🇷 776 102 1ms 5 Oct 2024 299th m-tkach 🇺🇦 776 131 3ms 4 Oct 2024 300th uttumuttu 🇫🇮 775 83 9ms 1 Oct 2024 300th KatieLG 🇬🇧 775 83 12ms 1 Oct 2024 300th Larento 775 83 10ms 4 Nov 2024 300th Andrey-Plotnikov 775 83 11ms 13 Jan 2025 300th nathanadams 🇳🇿 775 83 10ms 6 Oct 2025 305th duckyluuk 🇳🇱 775 97 10ms 25 Nov 2025 306th Natanaelel 🇸🇪 775 143 145ms 20 Apr 2025 307th DialFrost 🇸🇬 772 121 349ms 24 Sep 2025 308th sisyphus-ppcg 🇦🇺 771 62 53ms 3 Oct 2024 309th sean-niemann 🇺🇸 771 105 440ms 1 Oct 2024 310th retrohun 769 63 20ms 2 Oct 2024 311th edsrzf 🇳🇿 769 76 1,005ms 1 Oct 2024 312th AlephSquirrel 769 84 19ms 1 Oct 2024 312th kops-cg 769 84 19ms 22 Feb 2025 312th xnor-gate 769 84 19ms 23 Feb 2025 315th DialFrost 🇸🇬 769 90 2ms 18 Nov 2025 316th Waffle3z 769 103 2ms 2 Oct 2024 317th targrik 768 88 8ms 7 Feb 2025 318th lifthrasiir 🇰🇷 767 37 2ms 27 Nov 2024 319th didion0 🇺🇸 766 84 11ms 10 Jan 2025 320th DialFrost 🇸🇬 766 131 7ms 11 Dec 2024 First Prev 241–320 of 864 Next Last