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 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 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 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 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 edsrzf 🇳🇿 782 119 152ms 23 Jul 2025 302nd annaproxy 781 102 17ms 1 Oct 2024 303rd namelessiw 781 119 346ms 9 Oct 2025 304th SirBogman 🇺🇸 780 50 36ms 8 Jul 2025 305th MeWhenI 🇻🇦 780 122 55ms 5 Oct 2024 306th GrayJoKing 🇦🇺 779 82 121ms 1 Oct 2024 307th sean-niemann 🇺🇸 779 107 331ms 3 Oct 2024 308th adriweb 🇫🇷 777 102 2ms 5 Oct 2024 309th emgordon154 777 166 1,640ms 2 Oct 2024 310th m-tkach 🇺🇦 776 131 3ms 4 Oct 2024 311th uttumuttu 🇫🇮 775 83 10ms 1 Oct 2024 311th KatieLG 🇬🇧 775 83 13ms 1 Oct 2024 311th Larento 775 83 9ms 4 Nov 2024 311th Andrey-Plotnikov 775 83 10ms 13 Jan 2025 311th nathanadams 🇳🇿 775 83 10ms 6 Oct 2025 316th Shanethegamer 🇺🇸 775 120 332ms 24 Sep 2025 317th DialFrost 🇸🇬 773 76 734ms 30 Aug 2025 318th Natanaelel 🇸🇪 772 143 184ms 20 Apr 2025 319th sean-niemann 🇺🇸 771 105 440ms 1 Oct 2024 320th sisyphus-ppcg 🇦🇺 770 62 39ms 3 Oct 2024 321st emgordon154 770 83 135ms 18 Nov 2024 322nd Waffle3z 770 103 4ms 2 Oct 2024 323rd retrohun 769 63 20ms 2 Oct 2024 324th DialFrost 🇸🇬 769 91 2ms 1 Oct 2024 325th DialFrost 🇸🇬 769 121 338ms 24 Sep 2025 326th targrik 768 88 8ms 7 Feb 2025 327th lifthrasiir 🇰🇷 767 37 2ms 27 Nov 2024 328th didion0 🇺🇸 766 84 9ms 10 Jan 2025 329th jatloe 766 104 10ms 1 Oct 2024 329th solisolu 766 104 10ms 114 mins ago 331st DialFrost 🇸🇬 766 131 6ms 11 Dec 2024 332nd MeWhenI 🇻🇦 765 109 331ms 2 Oct 2024 332nd edsrzf 🇳🇿 765 109 377ms 23 Jul 2025 334th albanian-laundromat 763 118 298ms 2 days ago 335th ovs-code 🇩🇪 763 122 157ms 25 Apr 2025 336th Shanethegamer 🇺🇸 763 124 7ms 4 Oct 2024 337th GolfingSuccess 🇬🇷 762 70 6ms 6 Jun 2025 338th GrayJoKing 🇦🇺 761 79 1,080ms 1 Oct 2024 339th Shanethegamer 🇺🇸 761 132 8ms 2 Oct 2024 340th MeWhenI 🇻🇦 759 89 4ms 2 Oct 2024 341st emgordon154 758 63 40ms 18 Nov 2024 341st SirBogman 🇺🇸 758 63 41ms 19 Jul 2025 343rd fourth-bit 758 105 15ms 1 Oct 2024 343rd jared-hughes 758 105 17ms 3 Oct 2024 343rd mattyhempstead 758 105 27ms 7 Oct 2024 346th weliveinhell 🇭🇹 757 85 10ms 1 Oct 2024 346th SteRoy 757 85 9ms 13 May 2025 348th sean-niemann 🇺🇸 754 93 2ms 24 Oct 2024 349th 0xjac 🇨🇭 753 158 262ms 17 Jun 2025 350th MeWhenI 🇻🇦 751 88 553ms 2 Oct 2024 350th albanian-laundromat 751 88 585ms 12 days ago 352nd GrayJoKing 🇦🇺 751 90 4ms 1 Oct 2024 353rd davecame 751 106 16ms 1 Oct 2024 353rd starfihs 751 106 10ms 2 Oct 2024 353rd rschwa6308 🇺🇸 751 106 15ms 28 Oct 2024 353rd snydej 751 106 16ms 21 Nov 2024 353rd andrewjc2000 751 106 16ms 17 Jul 2025 353rd qpwoeirut 751 106 9ms 19 Aug 2025 359th stackofbears 750 52 38ms 14 Mar 2025 360th Maznek 748 86 9ms 4 Oct 2024 361st MeWhenI 🇻🇦 748 106 2ms 2 Oct 2024 362nd rak1507 🇬🇧 747 38 2ms 30 Dec 2024 363rd Shanethegamer 🇺🇸 746 64 44ms 3 Oct 2024 363rd Andriamanitra 🇫🇮 746 64 38ms 5 Oct 2024 365th MeWhenI 🇻🇦 746 89 3,527ms 24 Oct 2024 366th stefangimmillaro 746 94 2ms 30 Oct 2024 367th commandblockguy 🇺🇸 744 107 17ms 7 Oct 2024 367th zbreit 🇺🇸 744 107 16ms 29 Oct 2024 367th StardustGogeta 744 107 16ms 30 Oct 2024 367th ZakkkkAttackkkk 🇵🇭 744 107 16ms 8 Feb 2025 367th InigoK 🇺🇸 744 107 16ms 22 Sep 2025 372nd Shanethegamer 🇺🇸 744 121 377ms 3 Oct 2024 373rd sean-niemann 🇺🇸 743 93 114ms 24 Oct 2024 374th DialFrost 🇸🇬 742 106 12ms 13 Dec 2024 375th MeWhenI 🇻🇦 742 162 27ms 2 Oct 2024 First Prev 301–375 of 817 Next Last