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 Multitap Input 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 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 Lily 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 Lily 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 Multitap Input 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 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 240th Natanaelel 🇸🇪 811 59 35ms 7 Feb 2025 242nd lifthrasiir 🇰🇷 810 71 419ms 2 Dec 2024 243rd saito-ta 🇯🇵 810 85 1ms 1 Oct 2024 244th stefangimmillaro 808 134 41ms 3 Oct 2024 245th stefangimmillaro 807 126 2ms 3 Oct 2024 246th GolfingSuccess 🇬🇷 806 31 72ms 5 Oct 2024 247th emgordon154 805 72 125ms 2 Oct 2024 248th trinityy-7 805 80 10ms 23 Jul 2025 249th error256 805 116 494ms 24 Sep 2025 250th albanian-laundromat 805 148 281ms 3 Dec 2025 251st GrayJoKing 🇦🇺 803 58 6ms 24 Oct 2024 252nd Shanethegamer 🇺🇸 803 138 142ms 3 Oct 2024 253rd stefangimmillaro 802 89 453ms 4 Oct 2024 254th DialFrost 🇸🇬 802 106 24ms 23 Mar 2025 255th ovs-code 🇩🇪 802 119 16ms 1 Oct 2024 256th albanian-laundromat 802 120 42ms 3 Nov 2025 257th MeWhenI 🇻🇦 801 127 2ms 5 Oct 2024 257th albanian-laundromat 801 127 3ms 3 Nov 2025 259th Shanethegamer 🇺🇸 801 208 1,404ms 14 Apr 2025 259th DialFrost 🇸🇬 801 208 1,411ms 18 Apr 2025 261st snoozingnewt 🇨🇦 799 72 442ms 6 Dec 2025 262nd sean-niemann 🇺🇸 799 92 116ms 1 Oct 2025 263rd Babafaba 798 81 17ms 11 Nov 2025 264th stefangimmillaro 798 87 113ms 4 Oct 2024 265th DialFrost 🇸🇬 797 85 7ms 1 Oct 2024 265th xsot 🇸🇬 797 85 5ms 7 Oct 2024 267th MeWhenI 🇻🇦 797 109 389ms 2 Oct 2024 268th 2bular 796 49 31ms 8 Nov 2025 269th m-tkach 🇺🇦 796 138 29ms 3 Oct 2024 270th tayloia 🇬🇧 795 81 11ms 3 Oct 2024 270th targrik 795 81 9ms 8 Feb 2025 270th Lv0Sys 🇵🇱 795 81 10ms 10 Dec 2025 273rd DialFrost 🇸🇬 794 84 2,408ms 26 Oct 2024 274th Shanethegamer 🇺🇸 794 102 451ms 4 Oct 2024 275th Shanethegamer 🇺🇸 794 128 2ms 3 Oct 2024 276th MeWhenI 🇻🇦 793 90 438ms 2 Oct 2024 277th Natanaelel 🇸🇪 791 48 118ms 1 Oct 2024 278th jared-hughes 791 203 88ms 20 Dec 2024 279th saito-ta 🇯🇵 790 74 7ms 1 Oct 2024 280th Shanethegamer 🇺🇸 789 88 113ms 4 Oct 2024 281st MeWhenI 🇻🇦 789 122 39ms 5 Oct 2024 282nd emgordon154 789 151 286ms 17 Jan 2025 283rd SB-945 788 82 17ms 1 Oct 2024 283rd HumanoidCPU 788 82 65ms 7 Mar 2025 283rd fkantelberg 788 82 11ms 11 Jul 2025 283rd BrunoVisnadi 🇧🇷 788 82 10ms 21 Sep 2025 287th emgordon154 787 164 1,815ms 22 Dec 2025 288th KingSkyrock 🇺🇸 785 82 10ms 14 Oct 2024 289th namelessiw 785 119 565ms 9 Oct 2025 290th SirBogman 🇺🇸 785 138 39ms 11 Jul 2025 291st stefangimmillaro 784 61 35ms 1 Oct 2024 292nd Shanethegamer 🇺🇸 784 91 455ms 3 Oct 2024 293rd edsrzf 🇳🇿 784 119 153ms 23 Jul 2025 294th Shanethegamer 🇺🇸 784 152 281ms 3 Oct 2024 294th targrik 784 152 283ms 7 Jul 2025 296th AlephSquirrel 783 124 7ms 21 Oct 2024 297th MeWhenI 🇻🇦 782 88 1ms 2 Oct 2024 298th SirBogman 🇺🇸 780 50 32ms 8 Jul 2025 299th Bmrl7 779 83 10ms 3 Oct 2024 299th KatieLG 🇬🇧 779 83 17ms 17 Jan 2026 301st sean-niemann 🇺🇸 779 107 332ms 3 Oct 2024 302nd bizy-coder 778 74 477ms 1 Oct 2024 302nd m-tkach 🇺🇦 778 74 508ms 3 Oct 2024 304th Shanethegamer 🇺🇸 778 120 364ms 24 Sep 2025 305th albanian-laundromat 777 74 1,047ms 3 Nov 2025 306th adriweb 🇫🇷 777 102 1ms 5 Oct 2024 307th uttumuttu 🇫🇮 776 83 12ms 1 Oct 2024 307th KatieLG 🇬🇧 776 83 10ms 1 Oct 2024 307th Larento 776 83 15ms 4 Nov 2024 307th Andrey-Plotnikov 776 83 10ms 13 Jan 2025 307th nathanadams 🇳🇿 776 83 10ms 6 Oct 2025 312th xsot 🇸🇬 776 125 7ms 20 Oct 2024 313th m-tkach 🇺🇦 776 131 2ms 4 Oct 2024 314th duckyluuk 🇳🇱 775 97 10ms 25 Nov 2025 315th Natanaelel 🇸🇪 775 143 145ms 20 Apr 2025 316th DialFrost 🇸🇬 772 121 369ms 24 Sep 2025 317th sisyphus-ppcg 🇦🇺 771 62 40ms 3 Oct 2024 318th DialFrost 🇸🇬 771 90 2ms 18 Nov 2025 319th sean-niemann 🇺🇸 771 105 461ms 1 Oct 2024 320th targrik 770 88 8ms 7 Feb 2025 First Prev 241–320 of 890 Next Last