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 Binary Lambda Calculus 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 Binary Lambda Calculus 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 annaproxy 781 102 19ms 1 Oct 2024 302nd SirBogman 🇺🇸 780 50 36ms 8 Jul 2025 303rd namelessiw 780 119 346ms 9 Oct 2025 304th MeWhenI 🇻🇦 780 122 55ms 5 Oct 2024 305th GrayJoKing 🇦🇺 779 82 121ms 1 Oct 2024 306th sean-niemann 🇺🇸 779 107 331ms 3 Oct 2024 307th emgordon154 777 166 1,640ms 2 Oct 2024 308th adriweb 🇫🇷 776 102 2ms 5 Oct 2024 309th m-tkach 🇺🇦 776 131 3ms 4 Oct 2024 310th uttumuttu 🇫🇮 775 83 10ms 1 Oct 2024 310th KatieLG 🇬🇧 775 83 13ms 1 Oct 2024 310th Larento 775 83 9ms 4 Nov 2024 310th Andrey-Plotnikov 775 83 10ms 13 Jan 2025 310th nathanadams 🇳🇿 775 83 10ms 6 Oct 2025 315th Shanethegamer 🇺🇸 774 120 332ms 24 Sep 2025 316th DialFrost 🇸🇬 773 76 734ms 30 Aug 2025 317th Natanaelel 🇸🇪 772 143 184ms 20 Apr 2025 318th sean-niemann 🇺🇸 771 105 440ms 1 Oct 2024 319th sisyphus-ppcg 🇦🇺 770 62 39ms 3 Oct 2024 320th emgordon154 770 83 135ms 18 Nov 2024 321st retrohun 769 63 20ms 2 Oct 2024 322nd DialFrost 🇸🇬 769 91 3ms 1 Oct 2024 323rd Waffle3z 769 103 4ms 2 Oct 2024 324th targrik 768 88 8ms 7 Feb 2025 325th lifthrasiir 🇰🇷 767 37 2ms 27 Nov 2024 326th DialFrost 🇸🇬 767 121 338ms 24 Sep 2025 327th didion0 🇺🇸 766 84 9ms 10 Jan 2025 328th jatloe 766 104 10ms 1 Oct 2024 329th DialFrost 🇸🇬 766 131 6ms 11 Dec 2024 330th MeWhenI 🇻🇦 765 109 331ms 2 Oct 2024 330th edsrzf 🇳🇿 765 109 377ms 23 Jul 2025 332nd ovs-code 🇩🇪 763 122 149ms 25 Apr 2025 333rd Shanethegamer 🇺🇸 763 124 7ms 4 Oct 2024 334th GolfingSuccess 🇬🇷 762 70 6ms 6 Jun 2025 335th GrayJoKing 🇦🇺 761 79 1,080ms 1 Oct 2024 336th Shanethegamer 🇺🇸 761 132 8ms 2 Oct 2024 337th MeWhenI 🇻🇦 759 89 4ms 2 Oct 2024 338th emgordon154 758 63 40ms 18 Nov 2024 338th SirBogman 🇺🇸 758 63 41ms 19 Jul 2025 340th fourth-bit 758 105 17ms 1 Oct 2024 340th jared-hughes 758 105 17ms 3 Oct 2024 340th mattyhempstead 758 105 29ms 7 Oct 2024 343rd weliveinhell 🇭🇹 757 85 10ms 1 Oct 2024 343rd SteRoy 757 85 9ms 13 May 2025 345th sean-niemann 🇺🇸 754 93 2ms 24 Oct 2024 346th 0xjac 🇨🇭 753 158 262ms 17 Jun 2025 347th MeWhenI 🇻🇦 751 88 553ms 2 Oct 2024 347th albanian-laundromat 751 88 585ms 7 days ago 349th GrayJoKing 🇦🇺 751 90 4ms 1 Oct 2024 350th davecame 751 106 17ms 1 Oct 2024 350th starfihs 751 106 10ms 2 Oct 2024 350th rschwa6308 🇺🇸 751 106 18ms 28 Oct 2024 350th snydej 751 106 18ms 21 Nov 2024 350th andrewjc2000 751 106 16ms 17 Jul 2025 350th qpwoeirut 751 106 11ms 19 Aug 2025 356th stackofbears 750 52 38ms 14 Mar 2025 357th Maznek 748 86 9ms 4 Oct 2024 358th rak1507 🇬🇧 747 38 2ms 30 Dec 2024 359th MeWhenI 🇻🇦 747 106 2ms 2 Oct 2024 360th Shanethegamer 🇺🇸 746 64 44ms 3 Oct 2024 360th Andriamanitra 🇫🇮 746 64 38ms 5 Oct 2024 362nd MeWhenI 🇻🇦 746 89 3,527ms 24 Oct 2024 363rd stefangimmillaro 746 94 2ms 30 Oct 2024 364th commandblockguy 🇺🇸 744 107 20ms 7 Oct 2024 364th zbreit 🇺🇸 744 107 20ms 29 Oct 2024 364th StardustGogeta 744 107 16ms 30 Oct 2024 364th ZakkkkAttackkkk 🇵🇭 744 107 18ms 8 Feb 2025 364th InigoK 🇺🇸 744 107 17ms 22 Sep 2025 369th sean-niemann 🇺🇸 743 93 130ms 24 Oct 2024 370th DialFrost 🇸🇬 742 106 11ms 13 Dec 2024 371st MeWhenI 🇻🇦 742 162 27ms 2 Oct 2024 372nd SirBogman 🇺🇸 741 63 280ms 23 Jul 2025 373rd sean-niemann 🇺🇸 740 116 377ms 24 Oct 2024 374th Shanethegamer 🇺🇸 740 121 301ms 3 Oct 2024 375th DialFrost 🇸🇬 739 76 822ms 9 Oct 2024 First Prev 301–375 of 813 Next Last