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 481st MeWhenI 🇻🇦 686 68 267ms 2 Oct 2024 482nd ovs-code 🇩🇪 686 84 458ms 3 Oct 2024 483rd XenThe 🇬🇧 686 94 11ms 7 Jul 2025 484th KatieLG 🇬🇧 684 70 37ms 2 Oct 2025 485th aDwarfNamedUrist 684 162 138ms 1 Sep 2025 486th the-zammers 680 163 149ms 1 Dec 2024 487th tailorspy 679 128 475ms 4 Oct 2024 488th GrayJoKing 🇦🇺 678 79 1,204ms 1 Oct 2024 489th snoozingnewt 🇨🇦 676 95 78ms 23 Oct 2025 490th jkelly467 674 99 2,591ms 22 Jan 2026 491st Yax42 🇫🇷 674 129 73ms 8 Jan 2026 491st emgordon154 674 129 59ms 8 Feb 2026 493rd GolfingSuccess 🇬🇷 674 174 34ms 12 days ago 494th MeWhenI 🇻🇦 673 96 17ms 30 Jul 2025 495th jerrandolph 673 177 295ms 25 Sep 2025 495th CaedenHarper 🇨🇦 673 177 312ms 17 Nov 2025 497th HumanoidCPU 672 96 10ms 7 Mar 2025 498th error256 671 101 5ms 24 Oct 2024 499th emgordon154 670 115 111ms 9 Dec 2025 500th madex 🇩🇪 669 103 1ms 2 Oct 2024 500th solisolu 669 103 3ms 4 days ago 502nd Shanethegamer 🇺🇸 668 65 1ms 1 Oct 2024 503rd CaedenHarper 🇨🇦 668 140 571ms 3 Oct 2025 504th dbut2 🇦🇺 666 179 284ms 31 Oct 2024 505th two-bad 🇬🇧 665 97 12ms 2 Oct 2024 505th LordSir101 665 97 11ms 10 Aug 2025 507th BlankSpruce 663 104 2ms 1 Oct 2024 508th yeminghan2021 663 131 65ms 3 Feb 2026 509th Shanethegamer 🇺🇸 663 172 39ms 2 Oct 2024 510th snoozingnewt 🇨🇦 662 180 295ms 2 Nov 2025 511th 4hg 🇺🇸 661 59 34ms 5 Oct 2024 512th error256 661 142 156ms 31 May 2025 513th MeWhenI 🇻🇦 660 88 136ms 2 Oct 2024 513th Shanethegamer 🇺🇸 660 88 133ms 5 Oct 2024 515th GolfingSuccess 🇬🇷 660 98 17ms 5 Oct 2024 515th JunkIce 660 98 10ms 3 Dec 2024 517th BambooleanLogic 🇸🇪 658 98 13ms 21 Oct 2024 518th Herbert00709 🇵🇱 657 105 2ms 14 Jun 2025 519th AlephSquirrel 657 146 4ms 14 May 2025 520th MeWhenI 🇻🇦 655 174 41ms 13 Feb 2025 521st jwhear 🇺🇸 655 197 1,696ms 1 Oct 2024 522nd albanian-laundromat 🇺🇸 655 291 12ms 3 days ago 523rd MeWhenI 🇻🇦 654 88 440ms 2 Oct 2024 524th voytxt 🇨🇿 653 89 151ms 17 Apr 2025 524th dokutan 653 89 136ms 28 Jun 2025 526th SirBogman 🇺🇸 653 99 16ms 8 Oct 2024 526th solisolu 653 99 17ms 25 days ago 528th rucin93 🇵🇱 652 144 160ms 28 Oct 2024 529th dokutan 651 99 10ms 28 Jun 2025 530th w911 651 183 281ms 7 Oct 2024 531st rniii 650 106 1ms 2 Oct 2024 531st gastropner 650 106 2ms 11 Feb 2025 533rd DialFrost 🇸🇬 648 67 2ms 22 Dec 2024 534th scpchicken 🇵🇼 647 61 4ms 2 days ago 535th FlorianCassayre 🇫🇷 647 100 17ms 1 Oct 2024 535th bzijlema 🇳🇱 647 100 18ms 10 Oct 2024 535th bricknellj 647 100 17ms 4 Mar 2025 538th CaedenHarper 🇨🇦 645 100 11ms 22 Aug 2025 538th iczelia 🇩🇪 645 100 11ms 11 Oct 2025 538th Yax42 🇫🇷 645 100 11ms 27 Nov 2025 541st koipondx86 645 123 2ms 8 Nov 2024 542nd frankgraziano 645 128 7ms 21 Feb 2026 543rd Apataras 645 145 390ms 25 Jun 2025 544th tomh1012 643 111 488ms 8 Sep 2025 545th Shanethegamer 🇺🇸 643 124 7ms 4 Oct 2024 546th elgan65536 🇺🇸 643 146 159ms 2 Oct 2024 546th luuumine 🇫🇷 643 146 151ms 26 Nov 2025 548th btjones0 640 101 17ms 2 Dec 2024 549th dokutan 640 146 379ms 23 Nov 2025 550th stefangimmillaro 639 73 299ms 1 Oct 2024 551st MeWhenI 🇻🇦 638 73 7ms 3 Oct 2024 552nd Yax42 🇫🇷 638 108 2ms 14 days ago 553rd emgordon154 636 111 4ms 12 Jan 2025 554th MeWhenI 🇻🇦 634 91 1,014ms 29 Aug 2025 555th annaproxy 634 102 17ms 1 Oct 2024 555th xyangst 634 102 11ms 1 Oct 2024 555th aksyristos 634 102 18ms 6 days ago 558th msbranicky 634 188 301ms 7 Jan 2025 559th Florian-Mt 632 102 10ms 5 Dec 2025 560th Shanethegamer 🇺🇸 631 74 288ms 16 Oct 2024 First Prev 481–560 of 931 Next Last