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 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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions 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 Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial All Languages ><> ALGOL 68 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 ArkScript 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 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 ArkScript 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 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 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 Apéry’s Constant Binary Lambda Calculus Connect Four Continued Fractions 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 Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 321st duckyluuk 🇳🇱 775 97 10ms 25 Nov 2025 322nd Natanaelel 🇸🇪 775 143 145ms 20 Apr 2025 323rd sisyphus-ppcg 🇦🇺 772 62 40ms 3 Oct 2024 324th DialFrost 🇸🇬 772 121 369ms 24 Sep 2025 325th DialFrost 🇸🇬 771 90 2ms 18 Nov 2025 326th sean-niemann 🇺🇸 771 105 461ms 1 Oct 2024 327th targrik 770 88 8ms 7 Feb 2025 328th Waffle3z 770 103 2ms 2 Oct 2024 329th retrohun 769 63 20ms 2 Oct 2024 330th AlephSquirrel 769 84 20ms 1 Oct 2024 330th kops-cg 769 84 20ms 22 Feb 2025 330th xnor-gate 769 84 21ms 23 Feb 2025 333rd lifthrasiir 🇰🇷 767 37 2ms 27 Nov 2024 334th didion0 🇺🇸 767 84 10ms 10 Jan 2025 335th MeWhenI 🇻🇦 765 109 372ms 2 Oct 2024 336th ovs-code 🇩🇪 764 122 157ms 25 Apr 2025 337th emplv 🇱🇻 763 76 136ms 29 Oct 2024 338th albanian-laundromat 763 118 84ms 13 Nov 2025 339th GolfingSuccess 🇬🇷 762 70 6ms 6 Jun 2025 340th MeWhenI 🇻🇦 761 89 6ms 2 Oct 2024 341st emgordon154 760 63 35ms 18 Nov 2024 341st SirBogman 🇺🇸 760 63 33ms 19 Jul 2025 343rd inventshah 760 85 22ms 4 Oct 2024 343rd Artemis21 🇬🇧 760 85 11ms 10 Jan 2025 343rd keelimeguy 🇺🇸 760 85 19ms 14 Jun 2025 346th DialFrost 🇸🇬 759 76 1,013ms 30 Aug 2025 347th weliveinhell 🇭🇹 758 85 10ms 1 Oct 2024 347th SteRoy 758 85 11ms 13 May 2025 349th AlephSquirrel 757 76 445ms 1 Oct 2024 350th 0xjac 🇨🇭 754 158 287ms 17 Jun 2025 351st GrayJoKing 🇦🇺 753 90 5ms 1 Oct 2024 352nd stackofbears 750 52 34ms 14 Mar 2025 353rd MeWhenI 🇻🇦 750 89 2,127ms 24 Oct 2024 354th DialFrost 🇸🇬 749 75 813ms 10 Oct 2024 355th Maznek 749 86 10ms 4 Oct 2024 356th sean-niemann 🇺🇸 749 116 448ms 24 Oct 2024 356th luuumine 🇫🇷 749 116 431ms 15 Dec 2025 358th MeWhenI 🇻🇦 749 162 26ms 2 Oct 2024 359th Shanethegamer 🇺🇸 748 64 35ms 3 Oct 2024 359th Andriamanitra 🇫🇮 748 64 36ms 5 Oct 2024 361st luuumine 🇫🇷 748 92 1ms 5 Dec 2025 361st bzd7 748 92 2ms 7 Dec 2025 363rd MeWhenI 🇻🇦 748 106 1ms 2 Oct 2024 364th rak1507 🇬🇧 747 38 2ms 30 Dec 2024 365th Babafaba 747 77 480ms 11 Nov 2025 366th sean-niemann 🇺🇸 747 93 111ms 24 Oct 2024 367th Shanethegamer 🇺🇸 744 121 98ms 3 Oct 2024 368th Natanaelel 🇸🇪 743 53 3ms 10 Jan 2026 369th JOrE20 743 87 17ms 4 days ago 370th SirBogman 🇺🇸 741 63 283ms 23 Jul 2025 371st Shanethegamer 🇺🇸 741 90 2,349ms 28 Oct 2024 371st ScottHamper 741 90 2,298ms 11 Dec 2025 373rd DialFrost 🇸🇬 741 131 7ms 11 Dec 2024 374th KrausRaus 🇺🇸 740 87 10ms 1 Oct 2024 374th GeorgeStechman 🇬🇧 740 87 10ms 24 Oct 2024 374th coreynash 740 87 9ms 13 Feb 2025 374th kirjavascript 740 87 10ms 22 Jul 2025 378th sean-niemann 🇺🇸 740 93 1ms 24 Oct 2024 379th HumanoidCPU 738 78 438ms 7 Mar 2025 380th stefangimmillaro 736 92 8ms 2 Oct 2024 380th Shanethegamer 🇺🇸 736 92 5ms 3 Oct 2024 382nd MeWhenI 🇻🇦 736 111 116ms 2 Oct 2024 383rd MeWhenI 🇻🇦 735 34 55ms 2 Oct 2024 383rd emgordon154 735 34 63ms 11 Sep 2025 383rd plcc0 735 34 68ms 25 days ago 386th Shanethegamer 🇺🇸 735 100 117ms 24 May 2025 387th Shanethegamer 🇺🇸 735 132 7ms 2 Oct 2024 388th Kacarott 🇦🇺 734 73 1,111ms 1 Oct 2024 388th chunes3 🇺🇸 734 73 1,046ms 2 Oct 2024 390th wh3n3v3r 🇨🇿 734 88 11ms 18 Nov 2024 391st Shanethegamer 🇺🇸 733 116 1,027ms 1 Oct 2024 392nd stefangimmillaro 732 94 1ms 30 Oct 2024 392nd emgordon154 732 94 2ms 17 days ago 394th error256 731 109 8ms 24 Jul 2025 395th stefangimmillaro 731 114 376ms 13 Oct 2024 396th edsrzf 🇳🇿 730 52 113ms 16 Jan 2026 397th Shanethegamer 🇺🇸 729 112 99ms 3 Oct 2024 398th error256 728 98 416ms 17 Jan 2026 399th dtbao20 🇻🇳 724 89 10ms 1 Oct 2024 399th madeforlosers 724 89 10ms 17 Oct 2024 First Prev 321–400 of 898 Next Last