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 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 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 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 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 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 Rectangle Fill Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Chars Time Submitted 401st edsrzf 🇳🇿 730 52 118ms 16 Jan 2026 402nd Shanethegamer 🇺🇸 729 112 106ms 3 Oct 2024 403rd error256 728 98 436ms 17 Jan 2026 404th dtbao20 🇻🇳 724 89 11ms 1 Oct 2024 404th madeforlosers 724 89 9ms 17 Oct 2024 404th junkondo-jp 724 89 12ms 14 Dec 2024 404th alexsave 724 89 12ms 20 Jan 2026 408th zacjl 724 110 7ms 10 Oct 2024 409th Shanethegamer 🇺🇸 724 126 1,342ms 2 Oct 2024 410th Shanethegamer 🇺🇸 723 96 2ms 3 Oct 2024 411th annaproxy 723 132 15ms 1 Oct 2024 412th MeWhenI 🇻🇦 721 78 316ms 2 Oct 2024 413th MeWhenI 🇻🇦 721 179 1,697ms 7 Nov 2025 414th weeble 720 74 6ms 1 Jul 2025 415th nwellnhof 🇩🇪 718 90 20ms 1 Oct 2024 415th ovs-code 🇩🇪 718 90 17ms 3 Oct 2024 415th luuumine 🇫🇷 718 90 17ms 8 Oct 2025 415th firegene 🇮🇪 718 90 16ms 19 Feb 2026 415th lukegustafson 🇺🇸 718 90 17ms 22 days ago 420th snyderek 🇺🇸 718 121 61ms 1 Oct 2024 421st ovs-code 🇩🇪 717 81 144ms 17 Apr 2025 422nd JOrE20 716 90 11ms 11 Feb 2026 423rd Shanethegamer 🇺🇸 715 101 5ms 2 Oct 2024 424th ovs-code 🇩🇪 714 75 1,104ms 1 Oct 2024 425th rzv-me 713 95 6ms 5 Oct 2024 426th DialFrost 🇸🇬 713 106 12ms 13 Dec 2024 427th h3ra993huskp 🇯🇵 713 131 422ms 30 Nov 2025 428th CLOStrophobic 🇮🇹 712 160 40ms 27 Feb 2025 429th 5cw 🇺🇸 710 91 16ms 1 Oct 2024 429th stefangimmillaro 710 91 16ms 13 Oct 2024 429th GrayJoKing 🇦🇺 710 91 19ms 2 Jul 2025 432nd Natanaelel 🇸🇪 709 55 34ms 1 Mar 2025 433rd GrayJoKing 🇦🇺 708 82 133ms 1 Oct 2024 434th DialFrost 🇸🇬 708 132 238ms 8 Apr 2025 435th Shanethegamer 🇺🇸 706 118 376ms 2 Oct 2024 436th BlankSpruce 706 123 427ms 1 Oct 2024 437th cbrt-x 706 157 139ms 1 Oct 2024 438th edsrzf 🇳🇿 705 76 1,005ms 1 Oct 2024 439th janlelis 704 68 36ms 1 Oct 2024 439th tatzyr 🇯🇵 704 68 40ms 23 Dec 2024 441st MeWhenI 🇻🇦 704 115 453ms 5 Oct 2024 442nd Shanethegamer 🇺🇸 704 156 30ms 2 Oct 2024 443rd Shanethegamer 🇺🇸 703 92 16ms 3 Oct 2024 443rd error256 703 92 21ms 7 Oct 2024 443rd thatbirdguythatuknownot 703 92 18ms 14 Oct 2024 446th emgordon154 702 76 5ms 7 Jun 2025 447th mousetail 🇳🇱 702 133 169ms 3 Oct 2024 448th LukeBridges 🇬🇧 701 92 10ms 3 Oct 2024 449th Alex-x90 🇺🇸 701 124 435ms 1 Oct 2024 449th Herbert00709 🇵🇱 701 124 61ms 14 Jun 2025 451st albanian-laundromat 700 108 55ms 14 days ago 452nd emgordon154 697 134 241ms 25 Feb 2025 453rd tobeannouncd 697 159 146ms 13 Dec 2024 454th Bulmenisaurus 695 93 17ms 6 Oct 2024 454th lynn 695 93 16ms 8 Jan 2025 454th RaBa21 🇭🇺 695 93 17ms 19 Jul 2025 454th KasperKivimaeki 🇫🇮 695 93 17ms 30 Nov 2025 454th blaztoma 🇱🇹 695 93 17ms 18 Dec 2025 459th Shanethegamer 🇺🇸 693 41 3ms 4 Oct 2024 460th Shanethegamer 🇺🇸 693 83 445ms 5 Oct 2024 461st xyangst 693 93 13ms 1 Oct 2024 461st Salutations45 693 93 10ms 17 Nov 2024 461st strattonwhisler 693 93 10ms 26 Mar 2025 464th pardouin 🇫🇷 691 57 4ms 3 Oct 2024 465th NickTheEASDude 🇺🇸 690 115 3ms 17 Dec 2024 466th DialFrost 🇸🇬 688 94 18ms 1 Oct 2024 467th Alex-x90 🇺🇸 688 100 2ms 1 Oct 2024 468th dokutan 687 116 8ms 19 Oct 2024 469th MeWhenI 🇻🇦 686 68 267ms 2 Oct 2024 470th XenThe 🇬🇧 686 94 9ms 7 Jul 2025 471st ovs-code 🇩🇪 685 84 458ms 3 Oct 2024 472nd KatieLG 🇬🇧 684 70 37ms 2 Oct 2025 473rd aDwarfNamedUrist 684 162 138ms 1 Sep 2025 474th MeWhenI 🇻🇦 681 108 206ms 2 Oct 2024 475th the-zammers 680 163 149ms 1 Dec 2024 476th tailorspy 679 128 440ms 4 Oct 2024 477th GrayJoKing 🇦🇺 678 79 1,204ms 1 Oct 2024 478th snoozingnewt 🇨🇦 676 95 78ms 23 Oct 2025 479th edsrzf 🇳🇿 674 99 2,554ms 5 Jul 2025 479th jkelly467 674 99 2,723ms 22 Jan 2026 First Prev 401–480 of 908 Next Last