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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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim 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 Dragon Curve Ellipse Perimeters Flags Floyd-Steinberg Dithering Hexagonal Spiral Highly Composite Numbers NFA Simulator Nim 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 501st emgordon154 670 115 111ms 9 Dec 2025 502nd Shanethegamer 🇺🇸 669 65 1ms 1 Oct 2024 503rd solisolu 669 103 2ms 24 days ago 504th cuvam 🇺🇸 667 97 18ms 4 days ago 505th CaedenHarper 🇨🇦 667 140 531ms 3 Oct 2025 506th dbut2 🇦🇺 666 179 327ms 31 Oct 2024 507th two-bad 🇬🇧 665 97 15ms 2 Oct 2024 507th LordSir101 665 97 10ms 10 Aug 2025 509th BlankSpruce 663 104 2ms 1 Oct 2024 510th yeminghan2021 663 131 65ms 3 Feb 2026 511th Shanethegamer 🇺🇸 663 172 39ms 2 Oct 2024 512th snoozingnewt 🇨🇦 662 180 338ms 2 Nov 2025 513th 4hg 🇺🇸 661 59 34ms 5 Oct 2024 514th MeWhenI 🇻🇦 660 88 129ms 2 Oct 2024 514th Shanethegamer 🇺🇸 660 88 135ms 5 Oct 2024 516th GolfingSuccess 🇬🇷 660 98 18ms 5 Oct 2024 516th JunkIce 660 98 10ms 3 Dec 2024 518th error256 660 142 171ms 31 May 2025 519th GolfingSuccess 🇬🇷 660 174 38ms 25 Mar 2026 520th BambooleanLogic 🇸🇪 658 98 12ms 21 Oct 2024 521st Herbert00709 🇵🇱 657 105 2ms 14 Jun 2025 522nd AlephSquirrel 657 146 4ms 14 May 2025 523rd denkyuu1 656 73 39ms 6 days ago 524th MeWhenI 🇻🇦 655 174 41ms 13 Feb 2025 525th albanian-laundromat 🇺🇸 655 291 12ms 23 days ago 526th MeWhenI 🇻🇦 654 88 524ms 2 Oct 2024 527th voytxt 🇨🇿 653 89 131ms 17 Apr 2025 527th dokutan 653 89 132ms 28 Jun 2025 529th SirBogman 🇺🇸 653 99 17ms 8 Oct 2024 529th solisolu 653 99 22ms 13 Mar 2026 531st prestosilver 🇺🇸 653 128 407ms 3 days ago 532nd dokutan 651 99 12ms 28 Jun 2025 533rd rucin93 🇵🇱 651 144 153ms 28 Oct 2024 534th w911 651 183 327ms 7 Oct 2024 535th DialFrost 🇸🇬 650 67 2ms 22 Dec 2024 536th rniii 650 106 1ms 2 Oct 2024 536th gastropner 650 106 2ms 11 Feb 2025 536th prestosilver 🇺🇸 650 106 2ms 3 days ago 539th scpchicken 🇵🇼 647 61 4ms 22 days ago 540th FlorianCassayre 🇫🇷 647 100 17ms 1 Oct 2024 540th bzijlema 🇳🇱 647 100 19ms 10 Oct 2024 540th bricknellj 647 100 20ms 4 Mar 2025 543rd CaedenHarper 🇨🇦 645 100 10ms 22 Aug 2025 543rd iczelia 🇩🇪 645 100 13ms 11 Oct 2025 543rd Yax42 🇫🇷 645 100 11ms 27 Nov 2025 546th koipondx86 645 123 2ms 8 Nov 2024 547th frankgraziano 645 128 8ms 21 Feb 2026 548th tomh1012 644 111 474ms 8 Sep 2025 549th Apataras 644 145 459ms 25 Jun 2025 550th Shanethegamer 🇺🇸 643 124 8ms 4 Oct 2024 551st elgan65536 🇺🇸 642 146 169ms 2 Oct 2024 551st luuumine 🇫🇷 642 146 153ms 26 Nov 2025 553rd btjones0 640 101 18ms 2 Dec 2024 554th dokutan 640 146 455ms 23 Nov 2025 555th stefangimmillaro 639 73 324ms 1 Oct 2024 556th MeWhenI 🇻🇦 638 73 7ms 3 Oct 2024 557th Yax42 🇫🇷 638 108 2ms 24 Mar 2026 558th emgordon154 636 111 4ms 12 Jan 2025 559th MeWhenI 🇻🇦 634 91 750ms 29 Aug 2025 560th annaproxy 634 102 18ms 1 Oct 2024 560th xyangst 634 102 10ms 1 Oct 2024 560th aksyristos 634 102 19ms 26 days ago 560th scpchicken 🇵🇼 634 102 17ms 14 days ago 560th vang1ong7ang 634 102 17ms 2 days ago 565th msbranicky 634 188 328ms 7 Jan 2025 566th Florian-Mt 632 102 11ms 5 Dec 2025 567th Shanethegamer 🇺🇸 631 74 290ms 16 Oct 2024 568th robin-scragg 628 103 12ms 21 Aug 2025 569th Jonatan6 🇩🇰 627 110 2ms 24 Oct 2024 570th DialFrost 🇸🇬 627 304 153ms 13 Aug 2025 571st AlephSquirrel 625 40 47ms 1 Oct 2024 572nd dokutan 624 127 2ms 10 Dec 2024 573rd BalaM314 620 104 11ms 4 Feb 2025 573rd acollett89 620 104 11ms 15 Jul 2025 575th Ripick 620 135 390ms 23 Mar 2025 576th codereport 🇨🇦 619 63 33ms 2 Oct 2024 577th SirBogman 🇺🇸 619 93 529ms 23 Jul 2025 578th MarcMush 🇫🇷 618 91 830ms 8 Oct 2024 579th fourth-bit 616 105 18ms 1 Oct 2024 579th jared-hughes 616 105 17ms 3 Oct 2024 579th mattyhempstead 616 105 28ms 7 Oct 2024 582nd bac0id 616 141 426ms 10 Jan 2025 583rd olleicua 🇺🇸 614 78 38ms 18 Oct 2024 584th evnu 612 147 87ms 12 Oct 2025 585th Seanharrs 🇦🇺 611 117 454ms 15 Nov 2024 586th vang1ong7ang 610 41 45ms 2 days ago 587th davecame 610 106 18ms 1 Oct 2024 587th starfihs 610 106 11ms 2 Oct 2024 587th rschwa6308 🇺🇸 610 106 19ms 28 Oct 2024 587th snydej 610 106 20ms 21 Nov 2024 587th andrewjc2000 610 106 19ms 17 Jul 2025 587th travisdoesmath 610 106 18ms 7 Sep 2025 593rd not-a-pokemon 610 113 1ms 23 Jul 2025 594th kaascevich 609 134 126ms 9 Jul 2025 595th Shanethegamer 🇺🇸 609 154 153ms 3 Oct 2024 596th daveberlin 608 106 11ms 27 Jun 2025 597th alemelis 605 93 468ms 1 Oct 2024 598th jupj 🇫🇮 605 114 2ms 20 Jul 2025 599th albanian-laundromat 🇺🇸 604 72 1ms 25 Feb 2026 600th commandz0 🇺🇸 604 107 19ms 7 Oct 2024 First Prev 501–600 of 939 Next Last