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 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 Chars Time Submitted 226th MeWhenI 🇻🇦 804 183 18ms 2 Oct 2024 227th GrayJoKing 🇦🇺 803 58 7ms 24 Oct 2024 228th xsot 🇸🇬 803 125 7ms 20 Oct 2024 229th DialFrost 🇸🇬 802 106 25ms 23 Mar 2025 230th ovs-code 🇩🇪 802 119 25ms 1 Oct 2024 231st ovs-code 🇩🇪 801 75 1,110ms 1 Oct 2024 232nd MeWhenI 🇻🇦 801 127 2ms 5 Oct 2024 232nd albanian-laundromat 801 127 3ms 6 days ago 234th Shanethegamer 🇺🇸 801 208 1,934ms 14 Apr 2025 234th DialFrost 🇸🇬 801 208 817ms 18 Apr 2025 236th stefangimmillaro 800 89 421ms 4 Oct 2024 237th error256 800 116 336ms 24 Sep 2025 238th Shanethegamer 🇺🇸 800 138 171ms 3 Oct 2024 239th MeWhenI 🇻🇦 797 88 2ms 2 Oct 2024 240th 2bular 796 49 31ms 9 hours ago 241st DialFrost 🇸🇬 795 85 7ms 1 Oct 2024 241st xsot 🇸🇬 795 85 4ms 7 Oct 2024 243rd sean-niemann 🇺🇸 795 92 112ms 1 Oct 2025 244th albanian-laundromat 794 74 784ms 6 days ago 245th tayloia 🇬🇧 794 81 10ms 3 Oct 2024 245th targrik 794 81 10ms 8 Feb 2025 247th stefangimmillaro 794 87 125ms 4 Oct 2024 248th duckyluuk 🇳🇱 794 99 11ms 17 Dec 2024 249th Shanethegamer 🇺🇸 794 102 384ms 4 Oct 2024 250th edsrzf 🇳🇿 794 117 325ms 24 Sep 2025 251st Shanethegamer 🇺🇸 794 128 2ms 3 Oct 2024 252nd albanian-laundromat 793 120 42ms 6 days ago 253rd edsrzf 🇳🇿 791 76 1,165ms 1 Oct 2024 254th DialFrost 🇸🇬 791 84 2,866ms 26 Oct 2024 255th MeWhenI 🇻🇦 791 90 389ms 2 Oct 2024 256th jared-hughes 791 203 101ms 20 Dec 2024 257th saito-ta 🇯🇵 790 74 8ms 1 Oct 2024 258th Natanaelel 🇸🇪 788 48 112ms 1 Oct 2024 259th MeWhenI 🇻🇦 788 109 395ms 2 Oct 2024 260th emgordon154 788 151 260ms 17 Jan 2025 261st SB-945 787 82 17ms 1 Oct 2024 261st HumanoidCPU 787 82 71ms 7 Mar 2025 261st fkantelberg 787 82 11ms 11 Jul 2025 261st BrunoVisnadi 🇧🇷 787 82 13ms 21 Sep 2025 265th KingSkyrock 🇺🇸 785 82 10ms 14 Oct 2024 266th Shanethegamer 🇺🇸 785 88 124ms 4 Oct 2024 267th SirBogman 🇺🇸 785 138 43ms 11 Jul 2025 268th stefangimmillaro 783 61 36ms 1 Oct 2024 269th Shanethegamer 🇺🇸 783 152 260ms 3 Oct 2024 269th targrik 783 152 267ms 7 Jul 2025 271st Shanethegamer 🇺🇸 782 91 332ms 3 Oct 2024 272nd edsrzf 🇳🇿 782 119 151ms 23 Jul 2025 273rd SirBogman 🇺🇸 780 50 36ms 8 Jul 2025 274th namelessiw 780 119 346ms 9 Oct 2025 275th MeWhenI 🇻🇦 780 122 55ms 5 Oct 2024 276th sean-niemann 🇺🇸 779 107 331ms 3 Oct 2024 277th Bmrl7 778 83 13ms 3 Oct 2024 278th emgordon154 777 166 1,640ms 2 Oct 2024 279th adriweb 🇫🇷 776 102 2ms 5 Oct 2024 280th m-tkach 🇺🇦 776 131 3ms 4 Oct 2024 281st bizy-coder 775 74 527ms 1 Oct 2024 281st m-tkach 🇺🇦 775 74 636ms 3 Oct 2024 283rd uttumuttu 🇫🇮 775 83 10ms 1 Oct 2024 283rd KatieLG 🇬🇧 775 83 10ms 1 Oct 2024 283rd Larento 775 83 9ms 4 Nov 2024 283rd Andrey-Plotnikov 775 83 11ms 13 Jan 2025 283rd nathanadams 🇳🇿 775 83 10ms 6 Oct 2025 288th Shanethegamer 🇺🇸 774 120 332ms 24 Sep 2025 289th DialFrost 🇸🇬 773 76 734ms 30 Aug 2025 290th Natanaelel 🇸🇪 772 143 184ms 20 Apr 2025 291st sean-niemann 🇺🇸 771 105 440ms 1 Oct 2024 292nd sisyphus-ppcg 🇦🇺 770 62 39ms 3 Oct 2024 293rd retrohun 769 63 20ms 2 Oct 2024 294th AlephSquirrel 769 84 23ms 1 Oct 2024 294th kops-cg 769 84 20ms 22 Feb 2025 294th xnor-gate 769 84 20ms 23 Feb 2025 294th plcc0 769 84 18ms 6 Apr 2025 294th KatieLG 🇬🇧 769 84 19ms 25 May 2025 299th DialFrost 🇸🇬 769 91 3ms 1 Oct 2024 300th Waffle3z 769 103 4ms 2 Oct 2024 First Prev 226–300 of 809 Next Last