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 xsot 🇸🇬 803 125 7ms 20 Oct 2024 227th DialFrost 🇸🇬 802 106 25ms 23 Mar 2025 228th ovs-code 🇩🇪 802 119 25ms 1 Oct 2024 229th ovs-code 🇩🇪 801 75 1,110ms 1 Oct 2024 230th MeWhenI 🇻🇦 801 127 2ms 5 Oct 2024 230th albanian-laundromat 801 127 3ms 16 hours ago 232nd Shanethegamer 🇺🇸 801 208 1,934ms 14 Apr 2025 232nd DialFrost 🇸🇬 801 208 817ms 18 Apr 2025 234th stefangimmillaro 800 89 421ms 4 Oct 2024 235th error256 800 116 496ms 24 Sep 2025 236th Shanethegamer 🇺🇸 800 138 171ms 3 Oct 2024 237th MeWhenI 🇻🇦 797 88 2ms 2 Oct 2024 238th DialFrost 🇸🇬 795 85 9ms 1 Oct 2024 238th xsot 🇸🇬 795 85 4ms 7 Oct 2024 240th sean-niemann 🇺🇸 795 92 112ms 1 Oct 2025 241st albanian-laundromat 794 74 748ms 17 hours ago 242nd tayloia 🇬🇧 794 81 10ms 3 Oct 2024 242nd targrik 794 81 10ms 8 Feb 2025 244th stefangimmillaro 794 87 125ms 4 Oct 2024 245th duckyluuk 🇳🇱 794 99 11ms 17 Dec 2024 246th Shanethegamer 🇺🇸 794 102 384ms 4 Oct 2024 247th edsrzf 🇳🇿 794 117 511ms 24 Sep 2025 248th Shanethegamer 🇺🇸 794 128 2ms 3 Oct 2024 249th albanian-laundromat 793 120 42ms 17 hours ago 250th edsrzf 🇳🇿 791 76 1,165ms 1 Oct 2024 251st DialFrost 🇸🇬 791 84 2,866ms 26 Oct 2024 252nd MeWhenI 🇻🇦 791 90 389ms 2 Oct 2024 253rd jared-hughes 791 203 101ms 20 Dec 2024 254th saito-ta 🇯🇵 790 74 8ms 1 Oct 2024 255th Natanaelel 🇸🇪 788 48 112ms 1 Oct 2024 256th MeWhenI 🇻🇦 788 109 426ms 2 Oct 2024 257th emgordon154 788 151 273ms 17 Jan 2025 258th SB-945 787 82 17ms 1 Oct 2024 258th HumanoidCPU 787 82 71ms 7 Mar 2025 258th fkantelberg 787 82 11ms 11 Jul 2025 258th BrunoVisnadi 🇧🇷 787 82 13ms 21 Sep 2025 262nd KingSkyrock 🇺🇸 785 82 10ms 14 Oct 2024 263rd Shanethegamer 🇺🇸 785 88 124ms 4 Oct 2024 264th SirBogman 🇺🇸 785 138 43ms 11 Jul 2025 265th stefangimmillaro 783 61 36ms 1 Oct 2024 266th Shanethegamer 🇺🇸 783 152 284ms 3 Oct 2024 266th targrik 783 152 279ms 7 Jul 2025 268th Shanethegamer 🇺🇸 782 91 332ms 3 Oct 2024 269th edsrzf 🇳🇿 782 119 151ms 23 Jul 2025 270th namelessiw 780 119 629ms 24 days ago 271st MeWhenI 🇻🇦 780 122 55ms 5 Oct 2024 272nd sean-niemann 🇺🇸 779 107 332ms 3 Oct 2024 273rd SirBogman 🇺🇸 778 50 36ms 8 Jul 2025 274th Bmrl7 778 83 13ms 3 Oct 2024 275th adriweb 🇫🇷 776 102 2ms 5 Oct 2024 276th m-tkach 🇺🇦 776 131 3ms 4 Oct 2024 277th bizy-coder 775 74 527ms 1 Oct 2024 277th m-tkach 🇺🇦 775 74 636ms 3 Oct 2024 279th uttumuttu 🇫🇮 775 83 10ms 1 Oct 2024 279th KatieLG 🇬🇧 775 83 10ms 1 Oct 2024 279th Larento 775 83 9ms 4 Nov 2024 279th Andrey-Plotnikov 775 83 11ms 13 Jan 2025 279th nathanadams 🇳🇿 775 83 10ms 27 days ago 284th Shanethegamer 🇺🇸 774 120 349ms 24 Sep 2025 285th DialFrost 🇸🇬 773 76 1,579ms 30 Aug 2025 286th Natanaelel 🇸🇪 772 143 184ms 20 Apr 2025 287th sean-niemann 🇺🇸 771 105 440ms 1 Oct 2024 288th sisyphus-ppcg 🇦🇺 770 62 39ms 3 Oct 2024 289th retrohun 769 63 20ms 2 Oct 2024 290th AlephSquirrel 769 84 23ms 1 Oct 2024 290th kops-cg 769 84 20ms 22 Feb 2025 290th xnor-gate 769 84 20ms 23 Feb 2025 290th plcc0 769 84 18ms 6 Apr 2025 290th KatieLG 🇬🇧 769 84 19ms 25 May 2025 295th DialFrost 🇸🇬 769 91 3ms 1 Oct 2024 296th Waffle3z 769 103 4ms 2 Oct 2024 297th targrik 768 88 8ms 7 Feb 2025 298th emgordon154 768 166 1,807ms 2 Oct 2024 299th lifthrasiir 🇰🇷 767 37 3ms 27 Nov 2024 300th DialFrost 🇸🇬 767 121 472ms 24 Sep 2025 First Prev 226–300 of 805 Next Last