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 Continued Fractions 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four 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 ><> ALGOL 68 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 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 ><> ALGOL 68 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 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 Continued Fractions 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 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four 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 241st MeWhenI 🇻🇦 816 85 2ms 5 Oct 2024 242nd CLOStrophobic 🇮🇹 815 119 6ms 24 Feb 2025 243rd lifthrasiir 🇰🇷 815 197 9ms 19 Dec 2024 244th albanian-laundromat 813 118 4ms 11 Dec 2025 245th emgordon154 813 205 1,455ms 7 Mar 2025 246th Shanethegamer 🇺🇸 812 70 1,296ms 9 Apr 2025 247th sean-niemann 🇺🇸 812 115 361ms 24 Sep 2025 247th stefangimmillaro 812 115 671ms 6 Oct 2025 249th Natanaelel 🇸🇪 811 59 35ms 7 Feb 2025 250th lifthrasiir 🇰🇷 810 71 419ms 2 Dec 2024 251st saito-ta 🇯🇵 810 85 1ms 1 Oct 2024 252nd stefangimmillaro 810 126 2ms 3 Oct 2024 253rd stefangimmillaro 808 134 41ms 3 Oct 2024 254th emgordon154 807 72 128ms 2 Oct 2024 254th rucin93 🇵🇱 807 72 185ms 14 days ago 256th GolfingSuccess 🇬🇷 806 31 72ms 5 Oct 2024 257th trinityy-7 806 80 13ms 23 Jul 2025 258th error256 805 116 494ms 24 Sep 2025 259th albanian-laundromat 805 148 279ms 3 Dec 2025 260th MeWhenI 🇻🇦 804 127 2ms 5 Oct 2024 260th albanian-laundromat 804 127 3ms 3 Nov 2025 262nd GrayJoKing 🇦🇺 803 58 6ms 24 Oct 2024 263rd Shanethegamer 🇺🇸 803 138 142ms 3 Oct 2024 264th stefangimmillaro 802 89 418ms 4 Oct 2024 265th DialFrost 🇸🇬 802 106 24ms 23 Mar 2025 266th ovs-code 🇩🇪 802 119 16ms 1 Oct 2024 267th albanian-laundromat 802 120 42ms 3 Nov 2025 268th edsrzf 🇳🇿 801 104 437ms 21 days ago 269th Shanethegamer 🇺🇸 801 208 1,457ms 14 Apr 2025 269th DialFrost 🇸🇬 801 208 1,472ms 18 Apr 2025 271st anter69 🇭🇺 800 71 1,213ms 16 days ago 272nd snoozingnewt 🇨🇦 799 72 442ms 6 Dec 2025 273rd sean-niemann 🇺🇸 799 92 161ms 1 Oct 2025 274th Babafaba 798 81 17ms 11 Nov 2025 275th stefangimmillaro 798 87 137ms 4 Oct 2024 276th DialFrost 🇸🇬 797 85 8ms 1 Oct 2024 276th xsot 🇸🇬 797 85 5ms 7 Oct 2024 278th MeWhenI 🇻🇦 797 109 459ms 2 Oct 2024 279th Shanethegamer 🇺🇸 797 128 2ms 3 Oct 2024 280th 2bular 796 49 31ms 8 Nov 2025 281st tayloia 🇬🇧 796 81 11ms 3 Oct 2024 281st targrik 796 81 10ms 8 Feb 2025 283rd m-tkach 🇺🇦 796 138 29ms 3 Oct 2024 284th DialFrost 🇸🇬 794 84 2,408ms 26 Oct 2024 285th Shanethegamer 🇺🇸 794 102 451ms 4 Oct 2024 286th MeWhenI 🇻🇦 793 90 421ms 2 Oct 2024 287th Natanaelel 🇸🇪 791 48 130ms 1 Oct 2024 288th jared-hughes 791 203 88ms 20 Dec 2024 289th saito-ta 🇯🇵 790 74 7ms 1 Oct 2024 290th Shanethegamer 🇺🇸 789 88 181ms 4 Oct 2024 291st MeWhenI 🇻🇦 789 122 39ms 5 Oct 2024 292nd emgordon154 789 151 288ms 17 Jan 2025 293rd SB-945 788 82 17ms 1 Oct 2024 293rd HumanoidCPU 788 82 65ms 7 Mar 2025 293rd fkantelberg 788 82 11ms 11 Jul 2025 293rd BrunoVisnadi 🇧🇷 788 82 10ms 21 Sep 2025 297th emgordon154 787 164 1,815ms 22 Dec 2025 298th KingSkyrock 🇺🇸 786 82 11ms 14 Oct 2024 299th stefangimmillaro 785 61 35ms 1 Oct 2024 300th edsrzf 🇳🇿 785 119 155ms 23 Jul 2025 300th namelessiw 785 119 565ms 9 Oct 2025 302nd SirBogman 🇺🇸 785 138 39ms 11 Jul 2025 303rd Shanethegamer 🇺🇸 784 91 473ms 3 Oct 2024 304th Shanethegamer 🇺🇸 784 152 278ms 3 Oct 2024 304th targrik 784 152 304ms 7 Jul 2025 306th AlephSquirrel 783 124 7ms 21 Oct 2024 307th MeWhenI 🇻🇦 782 88 1ms 2 Oct 2024 308th SirBogman 🇺🇸 780 50 32ms 8 Jul 2025 309th duckyluuk 🇳🇱 780 97 10ms 25 Nov 2025 310th albanian-laundromat 779 74 1,047ms 3 Nov 2025 311th Bmrl7 779 83 10ms 3 Oct 2024 312th sean-niemann 🇺🇸 779 107 375ms 3 Oct 2024 313th m-tkach 🇺🇦 779 131 2ms 4 Oct 2024 314th bizy-coder 778 74 477ms 1 Oct 2024 314th m-tkach 🇺🇦 778 74 508ms 3 Oct 2024 316th Shanethegamer 🇺🇸 778 120 364ms 24 Sep 2025 317th adriweb 🇫🇷 777 102 1ms 5 Oct 2024 318th uttumuttu 🇫🇮 776 83 9ms 1 Oct 2024 318th KatieLG 🇬🇧 776 83 9ms 1 Oct 2024 318th Larento 776 83 10ms 4 Nov 2024 First Prev 241–320 of 908 Next Last