Card Number Validation in all languages in bytes. 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 Bytes Time Submitted 1st saito-ta 🇯🇵 1,000 25 65ms 2 Oct 2024 2nd ovs-code 🇩🇪 980 29 2ms 2 Oct 2024 3rd khvdm 961 83 20ms 7 Jun 2025 4th bizy-coder 950 84 22ms 1 Oct 2024 4th pardouin 🇫🇷 950 84 21ms 1 Oct 2024 4th AlephSquirrel 950 84 22ms 1 Oct 2024 4th btnlq 950 84 21ms 1 Oct 2024 4th Seek64 🇩🇪 950 84 23ms 1 Oct 2024 4th m-tkach 🇺🇦 950 84 21ms 1 Oct 2024 4th Rubiksmath 950 84 21ms 7 Oct 2024 4th JayXon 🇺🇸 950 84 31ms 13 Oct 2024 4th kops-cg 950 84 20ms 22 Feb 2025 4th xnor-gate 950 84 23ms 23 Feb 2025 4th ryyyn 🇺🇸 950 84 24ms 4 Feb 2026 4th Steffan153 🇫🇮 950 84 23ms 21 Feb 2026 16th duckyluuk 🇳🇱 948 68 10ms 4 Oct 2024 16th JayXon 🇺🇸 948 68 11ms 4 Oct 2024 16th emplv 🇱🇻 948 68 10ms 24 Oct 2024 16th rucin93 🇵🇱 948 68 12ms 24 Oct 2024 16th sean-niemann 🇺🇸 948 68 11ms 13 Nov 2024 16th Steffan153 🇫🇮 948 68 11ms 11 Feb 2026 22nd 2bular 947 30 2ms 1 Oct 2024 22nd zacjl 947 30 3ms 3 Oct 2024 24th sisyphus-ppcg 🇦🇺 940 42 6ms 1 Oct 2024 24th saito-ta 🇯🇵 940 42 6ms 1 Oct 2024 26th JayXon 🇺🇸 939 51 35ms 13 Oct 2024 26th radarek 🇵🇱 939 51 36ms 23 Jul 2025 28th inventshah 938 85 22ms 4 Oct 2024 29th nwellnhof 🇩🇪 935 69 15ms 8 Oct 2024 30th JayXon 🇺🇸 930 76 2ms 11 Oct 2024 30th rhdqor213 930 76 2ms 5 Dec 2025 32nd AdrienHache 🇫🇷 928 39 51ms 2 Oct 2024 33rd GrayJoKing 🇦🇺 928 41 142ms 1 Oct 2024 33rd nwellnhof 🇩🇪 928 41 138ms 2 Oct 2024 35th ovs-code 🇩🇪 928 42 32ms 1 Mar 2025 36th hallvabo 🇳🇴 927 86 22ms 4 Jun 2025 37th canissimia 🇦🇶 924 47 2ms 30 Jan 2026 37th xsot 🇸🇬 924 47 2ms 22 Feb 2026 39th stefangimmillaro 921 70 13ms 3 Oct 2024 40th JayXon 🇺🇸 921 72 496ms 2 Oct 2024 41st primo-ppcg 🇹🇭 918 43 3ms 26 Jan 2025 42nd bstrat 916 31 2ms 6 Oct 2024 43rd nwellnhof 🇩🇪 915 51 437ms 1 Oct 2024 43rd bitsandbeyond 🇳🇱 915 51 395ms 7 Oct 2024 45th JayXon 🇺🇸 915 78 425ms 13 Oct 2024 45th AdrienHache 🇫🇷 915 78 423ms 20 Sep 2025 47th JayXon 🇺🇸 908 62 537ms 13 Oct 2024 48th GrayJoKing 🇦🇺 908 71 11ms 1 Oct 2024 48th pardouin 🇫🇷 908 71 13ms 2 Oct 2024 48th ovs-code 🇩🇪 908 71 11ms 3 Oct 2024 48th vlpx 🇫🇮 908 71 11ms 23 Oct 2024 48th lukegustafson 🇺🇸 908 71 10ms 22 Feb 2026 53rd blaztoma 🇱🇹 906 88 23ms 3 days ago 54th JayXon 🇺🇸 906 103 536ms 25 Sep 2025 55th JayXon 🇺🇸 905 96 613ms 11 Oct 2024 56th emplv 🇱🇻 903 75 14ms 24 Oct 2024 57th namelessiw 903 79 418ms 1 Aug 2025 58th JayXon 🇺🇸 903 104 143ms 31 May 2025 59th error256 902 63 1,375ms 7 Oct 2024 59th JayXon 🇺🇸 902 63 1,235ms 13 Oct 2024 61st inventshah 902 74 2,448ms 25 Oct 2024 61st JayXon 🇺🇸 902 74 2,336ms 13 Nov 2024 61st pardouin 🇫🇷 902 74 2,442ms 17 Dec 2024 61st edsrzf 🇳🇿 902 74 2,341ms 20 days ago 65th sean-niemann 🇺🇸 901 64 1,066ms 16 Feb 2026 65th edsrzf 🇳🇿 901 64 1,657ms 21 Feb 2026 65th Steffan153 🇫🇮 901 64 971ms 27 Feb 2026 68th JayXon 🇺🇸 901 88 2ms 5 Oct 2024 68th edsrzf 🇳🇿 901 88 2ms 23 Nov 2025 70th JayXon 🇺🇸 900 71 152ms 1 Mar 2026 71st saito-ta 🇯🇵 897 54 3ms 1 Oct 2024 71st DialFrost 🇸🇬 897 54 3ms 11 Jan 2025 71st frankgraziano 897 54 3ms 23 Jan 2025 74th mousetail 🇳🇱 896 52 6ms 25 Sep 2025 75th xsot 🇸🇬 896 72 13ms 10 Oct 2024 75th edsrzf 🇳🇿 896 72 11ms 20 Feb 2026 77th bizy-coder 896 74 469ms 1 Oct 2024 77th pardouin 🇫🇷 896 74 432ms 1 Oct 2024 77th m-tkach 🇺🇦 896 74 456ms 3 Oct 2024 77th Steffan153 🇫🇮 896 74 487ms 21 Feb 2026 1–80 of 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