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 320th m-tkach 🇺🇦 778 74 508ms 3 Oct 2024 322nd uttumuttu 🇫🇮 777 83 10ms 1 Oct 2024 322nd KatieLG 🇬🇧 777 83 10ms 1 Oct 2024 322nd Larento 777 83 9ms 4 Nov 2024 322nd Andrey-Plotnikov 777 83 10ms 13 Jan 2025 322nd nathanadams 🇳🇿 777 83 10ms 6 Oct 2025 327th adriweb 🇫🇷 777 102 1ms 5 Oct 2024 328th sean-niemann 🇺🇸 777 105 461ms 1 Oct 2024 329th AlephSquirrel 776 124 7ms 21 Oct 2024 330th Natanaelel 🇸🇪 775 143 145ms 20 Apr 2025 331st DialFrost 🇸🇬 773 121 369ms 24 Sep 2025 332nd sisyphus-ppcg 🇦🇺 772 62 38ms 3 Oct 2024 333rd DialFrost 🇸🇬 771 90 2ms 18 Nov 2025 334th AlephSquirrel 770 84 20ms 1 Oct 2024 334th kops-cg 770 84 20ms 22 Feb 2025 334th xnor-gate 770 84 21ms 23 Feb 2025 337th targrik 770 88 9ms 7 Feb 2025 338th Waffle3z 770 103 2ms 2 Oct 2024 339th xsot 🇸🇬 770 125 7ms 20 Oct 2024 340th retrohun 769 63 20ms 2 Oct 2024 341st dokutan 768 75 390ms 21 days ago 342nd ovs-code 🇩🇪 768 122 148ms 25 Apr 2025 343rd lifthrasiir 🇰🇷 767 37 2ms 27 Nov 2024 344th didion0 🇺🇸 767 84 10ms 10 Jan 2025 345th retrohun 766 90 2ms 45 mins ago 346th MeWhenI 🇻🇦 765 109 372ms 2 Oct 2024 347th emplv 🇱🇻 764 76 150ms 29 Oct 2024 348th albanian-laundromat 763 118 90ms 13 Nov 2025 349th GolfingSuccess 🇬🇷 762 70 6ms 6 Jun 2025 350th inventshah 761 85 22ms 4 Oct 2024 350th Artemis21 🇬🇧 761 85 11ms 10 Jan 2025 350th keelimeguy 🇺🇸 761 85 19ms 14 Jun 2025 353rd MeWhenI 🇻🇦 761 89 5ms 2 Oct 2024 354th emgordon154 760 63 35ms 18 Nov 2024 354th SirBogman 🇺🇸 760 63 35ms 19 Jul 2025 356th DialFrost 🇸🇬 759 76 1,041ms 30 Aug 2025 357th AlephSquirrel 758 76 445ms 1 Oct 2024 358th weliveinhell 🇭🇹 758 85 11ms 1 Oct 2024 358th SteRoy 758 85 11ms 13 May 2025 360th albanian-laundromat 758 161 27ms 25 days ago 361st 0xjac 🇨🇭 754 158 266ms 17 Jun 2025 362nd MeWhenI 🇻🇦 754 162 26ms 2 Oct 2024 363rd GrayJoKing 🇦🇺 753 90 5ms 1 Oct 2024 364th kg583 🇺🇸 752 156 48ms 19 days ago 365th stackofbears 750 52 34ms 14 Mar 2025 366th DialFrost 🇸🇬 750 75 813ms 10 Oct 2024 367th Maznek 750 86 9ms 4 Oct 2024 368th MeWhenI 🇻🇦 750 89 2,590ms 24 Oct 2024 369th luuumine 🇫🇷 749 92 1ms 5 Dec 2025 369th bzd7 749 92 2ms 7 Dec 2025 371st sean-niemann 🇺🇸 749 116 459ms 24 Oct 2024 371st luuumine 🇫🇷 749 116 448ms 15 Dec 2025 373rd Shanethegamer 🇺🇸 748 64 36ms 3 Oct 2024 373rd Andriamanitra 🇫🇮 748 64 35ms 5 Oct 2024 375th Babafaba 748 77 480ms 11 Nov 2025 376th MeWhenI 🇻🇦 748 106 1ms 2 Oct 2024 377th rak1507 🇬🇧 747 38 2ms 30 Dec 2024 378th sean-niemann 🇺🇸 747 93 113ms 24 Oct 2024 379th Natanaelel 🇸🇪 744 53 3ms 10 Jan 2026 380th Shanethegamer 🇺🇸 744 121 89ms 3 Oct 2024 381st JOrE20 743 87 17ms 21 Feb 2026 382nd SirBogman 🇺🇸 741 63 317ms 23 Jul 2025 383rd KrausRaus 🇺🇸 741 87 9ms 1 Oct 2024 383rd GeorgeStechman 🇬🇧 741 87 9ms 24 Oct 2024 383rd coreynash 741 87 9ms 13 Feb 2025 383rd kirjavascript 741 87 11ms 22 Jul 2025 387th Shanethegamer 🇺🇸 741 90 2,577ms 28 Oct 2024 387th ScottHamper 741 90 2,783ms 11 Dec 2025 389th sean-niemann 🇺🇸 741 93 1ms 24 Oct 2024 390th HumanoidCPU 738 78 438ms 7 Mar 2025 391st stefangimmillaro 736 92 8ms 2 Oct 2024 391st Shanethegamer 🇺🇸 736 92 5ms 3 Oct 2024 393rd MeWhenI 🇻🇦 736 111 127ms 2 Oct 2024 394th MeWhenI 🇻🇦 735 34 54ms 2 Oct 2024 394th emgordon154 735 34 62ms 11 Sep 2025 394th plcc0 735 34 69ms 31 Jan 2026 397th wh3n3v3r 🇨🇿 735 88 11ms 18 Nov 2024 398th Shanethegamer 🇺🇸 735 100 161ms 24 May 2025 399th Kacarott 🇦🇺 734 73 1,111ms 1 Oct 2024 399th chunes3 🇺🇸 734 73 1,046ms 2 Oct 2024 First Prev 321–400 of 927 Next Last