Card Number Validation in all languages in chars. 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 Chars Time Submitted 226th ovs-code 🇩🇪 802 119 25ms 1 Oct 2024 227th ovs-code 🇩🇪 801 75 1,110ms 1 Oct 2024 228th MeWhenI 🇻🇦 801 127 2ms 5 Oct 2024 229th Shanethegamer 🇺🇸 801 208 1,934ms 14 Apr 2025 229th DialFrost 🇸🇬 801 208 817ms 18 Apr 2025 231st stefangimmillaro 800 89 421ms 4 Oct 2024 232nd error256 800 116 496ms 24 Sep 2025 233rd Shanethegamer 🇺🇸 800 138 171ms 3 Oct 2024 234th albanian-laundromat 797 81 74ms 16 Jun 2025 235th MeWhenI 🇻🇦 797 88 2ms 2 Oct 2024 236th DialFrost 🇸🇬 795 85 9ms 1 Oct 2024 236th xsot 🇸🇬 795 85 4ms 7 Oct 2024 238th sean-niemann 🇺🇸 795 92 112ms 1 Oct 2025 239th tayloia 🇬🇧 794 81 10ms 3 Oct 2024 239th targrik 794 81 10ms 8 Feb 2025 241st stefangimmillaro 794 87 125ms 4 Oct 2024 242nd duckyluuk 🇳🇱 794 99 11ms 17 Dec 2024 243rd Shanethegamer 🇺🇸 794 102 384ms 4 Oct 2024 244th edsrzf 🇳🇿 794 117 511ms 24 Sep 2025 245th Shanethegamer 🇺🇸 794 128 2ms 3 Oct 2024 246th edsrzf 🇳🇿 791 76 1,165ms 1 Oct 2024 247th DialFrost 🇸🇬 791 84 2,866ms 26 Oct 2024 248th MeWhenI 🇻🇦 791 90 389ms 2 Oct 2024 249th jared-hughes 791 203 101ms 20 Dec 2024 250th saito-ta 🇯🇵 790 74 8ms 1 Oct 2024 251st Natanaelel 🇸🇪 788 48 112ms 1 Oct 2024 252nd MeWhenI 🇻🇦 788 109 426ms 2 Oct 2024 253rd emgordon154 788 151 273ms 17 Jan 2025 254th SB-945 787 82 17ms 1 Oct 2024 254th HumanoidCPU 787 82 71ms 7 Mar 2025 254th fkantelberg 787 82 11ms 11 Jul 2025 254th BrunoVisnadi 🇧🇷 787 82 13ms 21 Sep 2025 258th KingSkyrock 🇺🇸 785 82 10ms 14 Oct 2024 259th Shanethegamer 🇺🇸 785 88 124ms 4 Oct 2024 260th SirBogman 🇺🇸 785 138 43ms 11 Jul 2025 261st stefangimmillaro 783 61 36ms 1 Oct 2024 262nd Shanethegamer 🇺🇸 783 152 284ms 3 Oct 2024 262nd targrik 783 152 279ms 7 Jul 2025 264th Shanethegamer 🇺🇸 782 91 332ms 3 Oct 2024 265th edsrzf 🇳🇿 782 119 151ms 23 Jul 2025 266th namelessiw 780 119 629ms 24 days ago 267th MeWhenI 🇻🇦 780 122 55ms 5 Oct 2024 268th sean-niemann 🇺🇸 779 107 332ms 3 Oct 2024 269th SirBogman 🇺🇸 778 50 36ms 8 Jul 2025 270th Bmrl7 778 83 13ms 3 Oct 2024 271st adriweb 🇫🇷 776 102 2ms 5 Oct 2024 272nd m-tkach 🇺🇦 776 131 3ms 4 Oct 2024 273rd bizy-coder 775 74 527ms 1 Oct 2024 273rd m-tkach 🇺🇦 775 74 636ms 3 Oct 2024 275th uttumuttu 🇫🇮 775 83 10ms 1 Oct 2024 275th KatieLG 🇬🇧 775 83 10ms 1 Oct 2024 275th Larento 775 83 9ms 4 Nov 2024 275th Andrey-Plotnikov 775 83 11ms 13 Jan 2025 275th nathanadams 🇳🇿 775 83 10ms 27 days ago 280th Shanethegamer 🇺🇸 774 120 349ms 24 Sep 2025 281st DialFrost 🇸🇬 773 76 1,579ms 30 Aug 2025 282nd Natanaelel 🇸🇪 772 143 184ms 20 Apr 2025 283rd sean-niemann 🇺🇸 771 105 440ms 1 Oct 2024 284th sisyphus-ppcg 🇦🇺 770 62 39ms 3 Oct 2024 285th retrohun 769 63 20ms 2 Oct 2024 286th DialFrost 🇸🇬 769 91 3ms 1 Oct 2024 287th Waffle3z 769 103 4ms 2 Oct 2024 288th AlephSquirrel 768 84 23ms 1 Oct 2024 288th kops-cg 768 84 20ms 22 Feb 2025 288th xnor-gate 768 84 20ms 23 Feb 2025 288th plcc0 768 84 18ms 6 Apr 2025 288th KatieLG 🇬🇧 768 84 19ms 25 May 2025 293rd targrik 768 88 8ms 7 Feb 2025 294th emgordon154 768 166 1,807ms 2 Oct 2024 295th lifthrasiir 🇰🇷 767 37 3ms 27 Nov 2024 296th DialFrost 🇸🇬 767 121 472ms 24 Sep 2025 297th didion0 🇺🇸 766 84 12ms 10 Jan 2025 298th DialFrost 🇸🇬 766 131 6ms 11 Dec 2024 299th MeWhenI 🇻🇦 765 109 331ms 2 Oct 2024 299th edsrzf 🇳🇿 765 109 385ms 23 Jul 2025 First Prev 226–300 of 804 Next Last