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 481st OllieBoyne 🇬🇧 712 112 19ms 17 Oct 2024 481st WillConker 712 112 11ms 22 Oct 2024 481st maxgodfrey2004 🇨🇦 712 112 10ms 4 Jan 2025 481st Babafaba 712 112 18ms 11 Nov 2025 485th MeWhenI 🇻🇦 710 115 453ms 5 Oct 2024 486th DialFrost 🇸🇬 710 132 250ms 8 Apr 2025 487th Natanaelel 🇸🇪 709 55 34ms 1 Mar 2025 488th snoozingnewt 🇨🇦 709 95 86ms 23 Oct 2025 489th Shanethegamer 🇺🇸 709 118 385ms 2 Oct 2024 490th Alex-x90 🇺🇸 707 100 2ms 1 Oct 2024 490th madex 🇩🇪 707 100 2ms 20 days ago 492nd Shanethegamer 🇺🇸 707 127 1,453ms 11 days ago 493rd scpchicken 🇵🇼 706 56 6ms 2 days ago 494th SB-945 706 113 17ms 1 Oct 2024 494th Artemis21 🇬🇧 706 113 18ms 23 Jan 2025 494th fkantelberg 706 113 10ms 11 Jul 2025 497th BlankSpruce 706 123 440ms 1 Oct 2024 498th cbrt-x 706 157 139ms 1 Oct 2024 499th Shanethegamer 🇺🇸 706 172 39ms 2 Oct 2024 500th edsrzf 🇳🇿 705 76 1,005ms 1 Oct 2024 501st mousetail 🇳🇱 705 133 154ms 3 Oct 2024 502nd janlelis 704 68 43ms 1 Oct 2024 503rd Shanethegamer 🇺🇸 704 156 30ms 2 Oct 2024 504th emgordon154 702 76 5ms 7 Jun 2025 505th LukeBridges 🇬🇧 701 92 10ms 3 Oct 2024 505th ComradeSquirrel 701 92 11ms 15 days ago 507th Alex-x90 🇺🇸 701 124 415ms 1 Oct 2024 507th Herbert00709 🇵🇱 701 124 61ms 14 Jun 2025 509th albanian-laundromat 🇺🇸 700 108 57ms 6 Mar 2026 510th HumanoidCPU 700 114 66ms 7 Mar 2025 511th Shanethegamer 🇺🇸 699 101 5ms 2 Oct 2024 512th emgordon154 699 134 235ms 25 Feb 2025 513th tobeannouncd 697 159 146ms 13 Dec 2024 514th MeWhenI 🇻🇦 697 174 41ms 13 Feb 2025 515th CaedenHarper 🇨🇦 694 36 46ms 19 days ago 516th jipsong 🇩🇪 694 115 18ms 12 May 2025 516th luuumine 🇫🇷 694 115 19ms 2 Dec 2025 516th Bmrl7 694 115 13ms 25 Dec 2025 519th Shanethegamer 🇺🇸 693 41 3ms 4 Oct 2024 520th pardouin 🇫🇷 693 57 4ms 3 Oct 2024 521st Salutations45 693 93 11ms 17 Nov 2024 521st strattonwhisler 693 93 10ms 26 Mar 2025 521st JOrE20 693 93 11ms 12 Feb 2026 524th NickTheEASDude 🇺🇸 690 115 3ms 17 Dec 2024 525th MeWhenI 🇻🇦 688 68 284ms 2 Oct 2024 526th rowechenzhong 688 116 17ms 17 Oct 2024 527th solisolu 687 103 2ms 27 days ago 528th aDwarfNamedUrist 684 162 138ms 1 Sep 2025 529th CatsAreFluffy 683 53 56ms 27 Dec 2024 530th dtbao20 🇻🇳 682 117 19ms 1 Oct 2024 530th Pyroan 682 117 18ms 22 Feb 2025 530th vgamula 🇺🇦 682 117 17ms 5 Aug 2025 530th FortuiteMan 🇫🇷 682 117 18ms 1 Dec 2025 530th yujqiao 682 117 25ms 16 Dec 2025 535th BlankSpruce 680 104 2ms 1 Oct 2024 536th the-zammers 680 163 149ms 1 Dec 2024 537th tailorspy 679 128 454ms 4 Oct 2024 538th GrayJoKing 🇦🇺 678 79 1,204ms 1 Oct 2024 539th commandz0 🇺🇸 677 98 508ms 1 Sep 2025 540th elgan65536 🇺🇸 676 118 11ms 2 Oct 2024 540th logvp 676 118 18ms 6 Oct 2024 540th ahmetdemirag 🇨🇾 676 118 10ms 6 Feb 2025 540th dirckvdende 676 118 17ms 10 Jul 2025 544th jkelly467 674 99 2,622ms 22 Jan 2026 545th Herbert00709 🇵🇱 674 105 2ms 14 Jun 2025 546th Yax42 🇫🇷 674 129 81ms 8 Jan 2026 546th emgordon154 674 129 67ms 8 Feb 2026 548th jerrandolph 673 177 368ms 25 Sep 2025 548th CaedenHarper 🇨🇦 673 177 326ms 17 Nov 2025 550th error256 671 101 5ms 24 Oct 2024 551st CaedenHarper 🇨🇦 670 99 484ms 8 Mar 2026 552nd emgordon154 670 115 111ms 9 Dec 2025 553rd jtaxen 670 119 18ms 21 Oct 2024 553rd psbpsbp 670 119 9ms 19 Dec 2024 553rd klixel 🇨🇦 670 119 10ms 9 Apr 2025 553rd vhoulbreque 🇫🇷 670 119 16ms 21 Nov 2025 557th Shanethegamer 🇺🇸 669 65 1ms 1 Oct 2024 558th rniii 667 106 1ms 2 Oct 2024 558th gastropner 667 106 2ms 11 Feb 2025 558th prestosilver 🇺🇸 667 106 2ms 7 days ago First Prev 481–560 of 947 Next Last