Card Number Validation in all languages in bytes. 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 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 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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi 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 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 Arturo Befunge BQN CJam CoffeeScript Egel Erlang 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 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 Arturo Befunge BQN CJam CoffeeScript Egel Erlang 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 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 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 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 NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 301st GrayJoKing 🇦🇺 779 82 121ms 1 Oct 2024 302nd sean-niemann 🇺🇸 779 107 331ms 3 Oct 2024 303rd SirBogman 🇺🇸 778 50 36ms 8 Jul 2025 304th adriweb 🇫🇷 776 102 2ms 5 Oct 2024 305th m-tkach 🇺🇦 776 131 3ms 4 Oct 2024 306th uttumuttu 🇫🇮 775 83 10ms 1 Oct 2024 306th KatieLG 🇬🇧 775 83 10ms 1 Oct 2024 306th Larento 775 83 9ms 4 Nov 2024 306th Andrey-Plotnikov 775 83 11ms 13 Jan 2025 306th nathanadams 🇳🇿 775 83 10ms 6 Oct 2025 311th Shanethegamer 🇺🇸 774 120 349ms 24 Sep 2025 312th DialFrost 🇸🇬 773 76 1,579ms 30 Aug 2025 313th Natanaelel 🇸🇪 772 143 184ms 20 Apr 2025 314th sean-niemann 🇺🇸 771 105 440ms 1 Oct 2024 315th sisyphus-ppcg 🇦🇺 770 62 39ms 3 Oct 2024 316th emgordon154 770 83 165ms 18 Nov 2024 317th retrohun 769 63 20ms 2 Oct 2024 318th DialFrost 🇸🇬 769 91 3ms 1 Oct 2024 319th Waffle3z 769 103 4ms 2 Oct 2024 320th targrik 768 88 8ms 7 Feb 2025 321st emgordon154 768 166 1,807ms 2 Oct 2024 322nd lifthrasiir 🇰🇷 767 37 2ms 27 Nov 2024 323rd DialFrost 🇸🇬 767 121 459ms 24 Sep 2025 324th didion0 🇺🇸 766 84 12ms 10 Jan 2025 325th jatloe 766 104 10ms 1 Oct 2024 326th DialFrost 🇸🇬 766 131 6ms 11 Dec 2024 327th MeWhenI 🇻🇦 765 109 331ms 2 Oct 2024 327th edsrzf 🇳🇿 765 109 377ms 23 Jul 2025 329th ovs-code 🇩🇪 763 122 149ms 25 Apr 2025 330th Shanethegamer 🇺🇸 763 124 7ms 4 Oct 2024 331st GolfingSuccess 🇬🇷 762 70 6ms 6 Jun 2025 332nd GrayJoKing 🇦🇺 761 79 1,080ms 1 Oct 2024 333rd Shanethegamer 🇺🇸 761 132 8ms 2 Oct 2024 334th MeWhenI 🇻🇦 759 89 4ms 2 Oct 2024 335th emgordon154 758 63 40ms 18 Nov 2024 335th SirBogman 🇺🇸 758 63 41ms 19 Jul 2025 337th fourth-bit 758 105 17ms 1 Oct 2024 337th jared-hughes 758 105 17ms 3 Oct 2024 337th mattyhempstead 758 105 29ms 7 Oct 2024 340th weliveinhell 🇭🇹 757 85 11ms 1 Oct 2024 340th SteRoy 757 85 12ms 13 May 2025 342nd sean-niemann 🇺🇸 754 93 2ms 24 Oct 2024 343rd 0xjac 🇨🇭 753 158 296ms 17 Jun 2025 344th MeWhenI 🇻🇦 751 88 553ms 2 Oct 2024 344th albanian-laundromat 751 88 585ms 32 hours ago 346th GrayJoKing 🇦🇺 751 90 4ms 1 Oct 2024 347th davecame 751 106 17ms 1 Oct 2024 347th starfihs 751 106 10ms 2 Oct 2024 347th rschwa6308 🇺🇸 751 106 18ms 28 Oct 2024 347th snydej 751 106 18ms 21 Nov 2024 347th andrewjc2000 751 106 16ms 17 Jul 2025 347th qpwoeirut 751 106 11ms 19 Aug 2025 353rd stackofbears 748 52 38ms 14 Mar 2025 354th Maznek 748 86 9ms 4 Oct 2024 355th rak1507 🇬🇧 747 38 2ms 30 Dec 2024 356th MeWhenI 🇻🇦 747 106 2ms 2 Oct 2024 357th Shanethegamer 🇺🇸 746 64 44ms 3 Oct 2024 357th Andriamanitra 🇫🇮 746 64 38ms 5 Oct 2024 359th MeWhenI 🇻🇦 746 89 4,245ms 24 Oct 2024 360th stefangimmillaro 746 94 2ms 30 Oct 2024 361st commandblockguy 🇺🇸 744 107 20ms 7 Oct 2024 361st zbreit 🇺🇸 744 107 20ms 29 Oct 2024 361st StardustGogeta 744 107 16ms 30 Oct 2024 361st ZakkkkAttackkkk 🇵🇭 744 107 18ms 8 Feb 2025 361st InigoK 🇺🇸 744 107 17ms 22 Sep 2025 366th sean-niemann 🇺🇸 743 93 130ms 24 Oct 2024 367th DialFrost 🇸🇬 742 106 11ms 13 Dec 2024 368th MeWhenI 🇻🇦 742 162 27ms 2 Oct 2024 369th SirBogman 🇺🇸 741 63 280ms 23 Jul 2025 370th sean-niemann 🇺🇸 740 116 429ms 24 Oct 2024 371st Shanethegamer 🇺🇸 740 121 301ms 3 Oct 2024 372nd DialFrost 🇸🇬 739 76 822ms 9 Oct 2024 373rd KrausRaus 🇺🇸 739 87 10ms 1 Oct 2024 373rd GeorgeStechman 🇬🇧 739 87 9ms 24 Oct 2024 373rd coreynash 739 87 10ms 13 Feb 2025 First Prev 301–375 of 809 Next Last