Card Number Validation in all languages in bytes. Cheevos Holes Recent Holes Langs Medals Misc 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Morse Decoder Morse Encoder 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Topological Sort Trinomial Triangle Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript 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 ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Groovy Harbour Hare Haxe Hush Hy iogii Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua 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 Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz 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 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 Morse Decoder Morse Encoder 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 Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Hilbert Curve Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Snake Sphenic Numbers Topological Sort Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 451st jtaxen 667 119 21 Oct 2024 451st psbpsbp 667 119 19 Dec 2024 451st klixel 🇨🇦 667 119 9 Apr 2025 454th jwhear 🇺🇸 666 197 1 Oct 2024 455th Herbert00709 🇵🇱 665 105 25 days ago 456th TaserTheFox 🇺🇸 662 120 8 Oct 2024 456th yokasuretsu 662 120 26 Jan 2025 456th Troon 662 120 17 Feb 2025 456th keelimeguy 🇺🇸 662 120 26 days ago 460th two-bad 🇬🇧 661 97 2 Oct 2024 461st dbut2 🇦🇺 660 179 31 Oct 2024 462nd 4hg 🇺🇸 659 59 5 Oct 2024 463rd rniii 659 106 2 Oct 2024 463rd gastropner 659 106 11 Feb 2025 465th Ripick 658 135 23 Mar 2025 466th DialFrost 🇸🇬 656 67 22 Dec 2024 467th xyangst 655 98 15 Oct 2024 467th BambooleanLogic 🇸🇪 655 98 21 Oct 2024 469th error256 654 142 31 May 2025 470th RyanMHsiao 652 201 1 Oct 2024 471st chartung17 651 122 24 Mar 2025 472nd msbranicky 646 123 3 Oct 2024 472nd bobbysq 646 123 5 Oct 2024 472nd wuzekai518 646 123 8 Oct 2024 472nd vhoulbreque 🇫🇷 646 123 4 Feb 2025 476th bac0id 646 180 9 Jan 2025 477th w911 646 183 7 Oct 2024 478th rucin93 🇵🇱 645 144 28 Oct 2024 479th Antibrain0 641 123 8 Nov 2024 480th NotEvenIndian 640 124 22 Oct 2024 480th ridingqwerty 🇺🇸 640 124 16 Jan 2025 482nd stefangimmillaro 639 73 1 Oct 2024 483rd CaedenHarper 🇨🇦 639 185 3 Jan 2025 484th elgan65536 636 146 2 Oct 2024 485th yoshykai 636 183 12 Apr 2025 486th Jonatan6 🇩🇰 635 110 24 Oct 2024 487th bnic24 635 125 3 Oct 2024 487th adoxography 635 125 22 Oct 2024 487th wh3n3v3r 🇨🇿 635 125 18 Nov 2024 490th Shanethegamer 🇺🇸 631 74 16 Oct 2024 491st XenThe 🇬🇧 629 102 2 days ago 492nd msbranicky 628 188 7 Jan 2025 493rd AlephSquirrel 625 40 1 Oct 2024 494th CatsAreFluffy 625 127 30 Oct 2024 494th WillowWispy 625 127 25 May 2025 496th tomh1012 621 114 17 Oct 2024 497th dokutan 621 127 10 Dec 2024 498th DialFrost 🇸🇬 621 307 22 Apr 2025 499th lelbal 620 128 2 Oct 2024 499th Lv0Sys 🇵🇱 620 128 24 days ago 501st codereport 🇨🇦 617 63 2 Oct 2024 502nd BalaM314 617 104 4 Feb 2025 503rd madex 🇩🇪 616 129 2 Oct 2024 503rd RedzGoose 🇦🇺 616 129 15 Oct 2024 503rd calebaitken 616 129 11 Apr 2025 506th Schmitt-Very-Cool 616 189 3 Feb 2025 507th MarcMush 🇫🇷 615 91 8 Oct 2024 508th HumanoidCPU 615 107 17 Feb 2025 509th Europe2048 611 130 2 Oct 2024 509th nstearns96 🇬🇧 611 130 2 Oct 2024 509th rollershutter 611 130 10 Jan 2025 509th Stockoh 🇫🇷 611 130 5 days ago 513th emgordon154 609 156 13 Dec 2024 514th bac0id 608 141 10 Jan 2025 515th MeWhenI 🇻🇦 607 111 2 Oct 2024 516th inverseLorentz 🇦🇺 606 131 7 Oct 2024 516th dokutan 606 131 19 Oct 2024 516th CornerMercury 🇬🇧 606 131 3 Dec 2024 516th sciencejiho 606 131 11 Feb 2025 516th Jaydosu 606 131 11 Apr 2025 521st HumanoidCPU 605 106 7 Mar 2025 521st daveberlin 605 106 12 days ago 523rd Seanharrs 605 117 15 Nov 2024 524th CaedenHarper 🇨🇦 604 109 9 Oct 2024 525th Shanethegamer 🇺🇸 604 217 4 Oct 2024 Prev 451–525 of 709 Next
