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) Taxicab Numbers 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 Huffman Encoder 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 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) Taxicab Numbers 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 Huffman Encoder 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 Turtle Tutorial # Golfer Points Bytes Time Submitted 501st edsrzf 🇳🇿 705 76 1,005ms 1 Oct 2024 502nd mousetail 🇳🇱 705 133 154ms 3 Oct 2024 503rd janlelis 704 68 43ms 1 Oct 2024 504th Shanethegamer 🇺🇸 704 156 30ms 2 Oct 2024 505th emgordon154 702 76 5ms 7 Jun 2025 506th LukeBridges 🇬🇧 701 92 10ms 3 Oct 2024 506th ComradeSquirrel 701 92 11ms 16 days ago 508th Alex-x90 🇺🇸 701 124 415ms 1 Oct 2024 508th Herbert00709 🇵🇱 701 124 61ms 14 Jun 2025 510th albanian-laundromat 🇺🇸 700 108 57ms 6 Mar 2026 511th HumanoidCPU 700 114 66ms 7 Mar 2025 512th Shanethegamer 🇺🇸 699 101 5ms 2 Oct 2024 513th emgordon154 699 134 235ms 25 Feb 2025 514th tobeannouncd 697 159 146ms 13 Dec 2024 515th MeWhenI 🇻🇦 697 174 41ms 13 Feb 2025 516th CaedenHarper 🇨🇦 694 36 46ms 20 days ago 517th Salutations45 694 93 11ms 17 Nov 2024 517th strattonwhisler 694 93 10ms 26 Mar 2025 517th JOrE20 694 93 11ms 12 Feb 2026 520th jipsong 🇩🇪 694 115 18ms 12 May 2025 520th luuumine 🇫🇷 694 115 19ms 2 Dec 2025 520th Bmrl7 694 115 13ms 25 Dec 2025 523rd Shanethegamer 🇺🇸 693 41 3ms 4 Oct 2024 524th pardouin 🇫🇷 693 57 4ms 3 Oct 2024 525th NickTheEASDude 🇺🇸 690 115 3ms 17 Dec 2024 526th MeWhenI 🇻🇦 688 68 284ms 2 Oct 2024 527th rowechenzhong 688 116 17ms 17 Oct 2024 528th solisolu 687 103 2ms 3 Apr 2026 529th aDwarfNamedUrist 684 162 138ms 1 Sep 2025 530th CatsAreFluffy 683 53 56ms 27 Dec 2024 531st dtbao20 🇻🇳 682 117 19ms 1 Oct 2024 531st Pyroan 682 117 18ms 22 Feb 2025 531st vgamula 🇺🇦 682 117 17ms 5 Aug 2025 531st FortuiteMan 🇫🇷 682 117 18ms 1 Dec 2025 531st yujqiao 682 117 25ms 16 Dec 2025 536th BlankSpruce 680 104 2ms 1 Oct 2024 537th the-zammers 680 163 149ms 1 Dec 2024 538th tailorspy 679 128 454ms 4 Oct 2024 539th GrayJoKing 🇦🇺 678 79 1,204ms 1 Oct 2024 540th commandz0 🇺🇸 677 98 508ms 1 Sep 2025 541st elgan65536 🇺🇸 676 118 11ms 2 Oct 2024 541st logvp 676 118 18ms 6 Oct 2024 541st ahmetdemirag 🇨🇾 676 118 10ms 6 Feb 2025 541st dirckvdende 676 118 17ms 10 Jul 2025 545th jkelly467 674 99 2,622ms 22 Jan 2026 546th Herbert00709 🇵🇱 674 105 2ms 14 Jun 2025 547th Yax42 🇫🇷 674 129 81ms 8 Jan 2026 547th emgordon154 674 129 67ms 8 Feb 2026 549th jerrandolph 673 177 368ms 25 Sep 2025 549th CaedenHarper 🇨🇦 673 177 326ms 17 Nov 2025 551st error256 671 101 5ms 24 Oct 2024 552nd jtaxen 671 119 18ms 21 Oct 2024 552nd psbpsbp 671 119 9ms 19 Dec 2024 552nd klixel 🇨🇦 671 119 10ms 9 Apr 2025 552nd vhoulbreque 🇫🇷 671 119 16ms 21 Nov 2025 556th CaedenHarper 🇨🇦 670 99 484ms 8 Mar 2026 557th emgordon154 670 115 111ms 9 Dec 2025 558th Shanethegamer 🇺🇸 669 65 1ms 1 Oct 2024 559th rniii 667 106 1ms 2 Oct 2024 559th gastropner 667 106 2ms 11 Feb 2025 559th prestosilver 🇺🇸 667 106 2ms 8 days ago 562nd CaedenHarper 🇨🇦 667 140 479ms 3 Oct 2025 563rd dbut2 🇦🇺 666 179 327ms 31 Oct 2024 564th two-bad 🇬🇧 665 97 11ms 2 Oct 2024 564th LordSir101 665 97 11ms 10 Aug 2025 566th TaserTheFox 🇺🇸 665 120 18ms 8 Oct 2024 566th yokasuretsu 665 120 11ms 26 Jan 2025 566th Troon 665 120 10ms 17 Feb 2025 566th keelimeguy 🇺🇸 665 120 19ms 14 Jun 2025 566th denkyuu1 665 120 17ms 2 days ago 571st yeminghan2021 663 131 65ms 3 Feb 2026 572nd snoozingnewt 🇨🇦 662 180 338ms 2 Nov 2025 573rd 4hg 🇺🇸 661 59 34ms 5 Oct 2024 574th error256 660 142 171ms 31 May 2025 575th GolfingSuccess 🇬🇷 660 174 38ms 25 Mar 2026 576th BREMAUCY 🇫🇷 659 121 17ms 18 Jul 2025 576th retrohun 659 121 10ms 21 Mar 2026 578th xyangst 658 98 40ms 15 Oct 2024 578th BambooleanLogic 🇸🇪 658 98 11ms 21 Oct 2024 580th AlephSquirrel 657 146 4ms 14 May 2025 581st Yax42 🇫🇷 655 108 2ms 24 Mar 2026 582nd albanian-laundromat 🇺🇸 655 291 12ms 4 Apr 2026 583rd chartung17 654 122 10ms 24 Mar 2025 584th prestosilver 🇺🇸 653 128 407ms 8 days ago 585th rucin93 🇵🇱 651 144 153ms 28 Oct 2024 586th w911 651 183 327ms 7 Oct 2024 587th DialFrost 🇸🇬 650 67 2ms 22 Dec 2024 588th Babafaba 650 102 515ms 11 Nov 2025 589th msbranicky 649 123 17ms 3 Oct 2024 589th bobbysq 649 123 12ms 5 Oct 2024 589th wuzekai518 649 123 10ms 8 Oct 2024 589th fuzzylojik-golf 🇺🇸 649 123 17ms 27 Mar 2026 593rd albanian-laundromat 🇺🇸 648 257 1,211ms 4 days ago 594th tomh1012 646 111 474ms 8 Sep 2025 595th CaedenHarper 🇨🇦 645 100 10ms 22 Aug 2025 595th iczelia 🇩🇪 645 100 10ms 11 Oct 2025 595th Yax42 🇫🇷 645 100 11ms 27 Nov 2025 598th koipondx86 645 123 2ms 8 Nov 2024 599th frankgraziano 645 128 7ms 21 Feb 2026 600th Apataras 644 145 447ms 25 Jun 2025 First Prev 501–600 of 951 Next Last