Card Number Validation in all languages in chars. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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 Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> ALGOL 68 ArkScript Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 APL Arturo Befunge BQN CJam CoffeeScript Egel Fennel Harbour Hare Haxe Hush Hy iogii Knight Lily 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 Calendar Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz Continued Fractions 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 Gray Code Decoder Gray Code Encoder 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 Multitap Input 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 Tower of Hanoi Transpose Sentence Trinomial Triangle United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Alphabetic Numbers Apéry’s Constant Binary Lambda Calculus Connect Four Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 321st Bmrl7 779 83 11ms 3 Oct 2024 322nd sean-niemann 🇺🇸 779 107 375ms 3 Oct 2024 323rd m-tkach 🇺🇦 779 131 2ms 4 Oct 2024 324th bizy-coder 778 74 469ms 1 Oct 2024 324th m-tkach 🇺🇦 778 74 456ms 3 Oct 2024 326th Shanethegamer 🇺🇸 778 120 364ms 24 Sep 2025 327th uttumuttu 🇫🇮 777 83 11ms 1 Oct 2024 327th KatieLG 🇬🇧 777 83 17ms 1 Oct 2024 327th Larento 777 83 13ms 4 Nov 2024 327th Andrey-Plotnikov 777 83 13ms 13 Jan 2025 327th nathanadams 🇳🇿 777 83 11ms 6 Oct 2025 332nd adriweb 🇫🇷 777 102 1ms 5 Oct 2024 333rd sean-niemann 🇺🇸 777 105 461ms 1 Oct 2024 334th AlephSquirrel 776 124 7ms 21 Oct 2024 335th Natanaelel 🇸🇪 775 143 145ms 20 Apr 2025 336th sisyphus-ppcg 🇦🇺 773 62 36ms 3 Oct 2024 337th DialFrost 🇸🇬 773 90 2ms 18 Nov 2025 338th DialFrost 🇸🇬 772 121 369ms 24 Sep 2025 339th AlephSquirrel 770 84 22ms 1 Oct 2024 339th kops-cg 770 84 20ms 22 Feb 2025 339th xnor-gate 770 84 23ms 23 Feb 2025 342nd targrik 770 88 13ms 7 Feb 2025 343rd Waffle3z 770 103 2ms 2 Oct 2024 344th xsot 🇸🇬 770 125 7ms 20 Oct 2024 345th retrohun 769 63 20ms 2 Oct 2024 346th ovs-code 🇩🇪 769 122 148ms 25 Apr 2025 347th lifthrasiir 🇰🇷 768 37 2ms 27 Nov 2024 348th didion0 🇺🇸 768 84 15ms 10 Jan 2025 349th dokutan 767 75 392ms 14 Mar 2026 350th retrohun 766 90 2ms 7 days ago 351st MeWhenI 🇻🇦 765 109 372ms 2 Oct 2024 352nd emplv 🇱🇻 764 76 151ms 29 Oct 2024 353rd albanian-laundromat 🇺🇸 763 118 90ms 13 Nov 2025 354th GolfingSuccess 🇬🇷 762 70 6ms 6 Jun 2025 355th inventshah 761 85 22ms 4 Oct 2024 355th Artemis21 🇬🇧 761 85 11ms 10 Jan 2025 355th keelimeguy 🇺🇸 761 85 20ms 14 Jun 2025 358th MeWhenI 🇻🇦 761 89 6ms 2 Oct 2024 359th emgordon154 760 63 35ms 18 Nov 2024 359th SirBogman 🇺🇸 760 63 35ms 19 Jul 2025 361st DialFrost 🇸🇬 759 76 1,034ms 30 Aug 2025 362nd weliveinhell 🇭🇹 759 85 11ms 1 Oct 2024 362nd SteRoy 759 85 15ms 13 May 2025 364th albanian-laundromat 🇺🇸 758 161 27ms 10 Mar 2026 365th AlephSquirrel 757 76 483ms 1 Oct 2024 366th 0xjac 🇨🇭 754 158 321ms 17 Jun 2025 367th MeWhenI 🇻🇦 754 162 26ms 2 Oct 2024 368th GrayJoKing 🇦🇺 753 90 5ms 1 Oct 2024 369th kg583 🇺🇸 752 156 36ms 27 days ago 370th stackofbears 750 52 34ms 14 Mar 2025 371st DialFrost 🇸🇬 750 75 802ms 10 Oct 2024 372nd Maznek 750 86 10ms 4 Oct 2024 373rd MeWhenI 🇻🇦 750 89 2,264ms 24 Oct 2024 374th luuumine 🇫🇷 749 92 1ms 5 Dec 2025 374th bzd7 749 92 2ms 7 Dec 2025 376th sean-niemann 🇺🇸 749 116 460ms 24 Oct 2024 376th luuumine 🇫🇷 749 116 438ms 15 Dec 2025 378th rak1507 🇬🇧 748 38 2ms 30 Dec 2024 379th Shanethegamer 🇺🇸 748 64 36ms 3 Oct 2024 379th Andriamanitra 🇫🇮 748 64 35ms 5 Oct 2024 381st MeWhenI 🇻🇦 748 106 1ms 2 Oct 2024 382nd Babafaba 747 77 417ms 11 Nov 2025 383rd sean-niemann 🇺🇸 747 93 114ms 24 Oct 2024 384th Natanaelel 🇸🇪 745 53 3ms 10 Jan 2026 385th Shanethegamer 🇺🇸 744 121 89ms 3 Oct 2024 386th JOrE20 743 87 20ms 21 Feb 2026 387th SirBogman 🇺🇸 741 63 267ms 23 Jul 2025 388th KrausRaus 🇺🇸 741 87 11ms 1 Oct 2024 388th GeorgeStechman 🇬🇧 741 87 14ms 24 Oct 2024 388th coreynash 741 87 11ms 13 Feb 2025 388th kirjavascript 741 87 10ms 22 Jul 2025 392nd Shanethegamer 🇺🇸 741 90 2,379ms 28 Oct 2024 392nd ScottHamper 741 90 2,357ms 11 Dec 2025 394th sean-niemann 🇺🇸 741 93 1ms 24 Oct 2024 395th HumanoidCPU 738 78 450ms 7 Mar 2025 396th stefangimmillaro 736 92 8ms 2 Oct 2024 396th Shanethegamer 🇺🇸 736 92 7ms 3 Oct 2024 398th MeWhenI 🇻🇦 736 111 127ms 2 Oct 2024 399th MeWhenI 🇻🇦 735 34 54ms 2 Oct 2024 399th emgordon154 735 34 62ms 11 Sep 2025 First Prev 321–400 of 931 Next Last