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 Topological Sort 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 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 Umka 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 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 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 Topological Sort 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 Trinomial Triangle Turtle Tutorial # Golfer Points Bytes Time 451st MeWhenI 🇻🇦 673 108 2 Oct 2024 452nd edsrzf 🇳🇿 671 99 5 Jul 2025 453rd aDwarfNamedUrist 671 164 16 Oct 2024 454th tailorspy 669 128 4 Oct 2024 455th error256 668 101 24 Oct 2024 456th jtaxen 668 119 21 Oct 2024 456th psbpsbp 668 119 19 Dec 2024 456th klixel 🇨🇦 668 119 9 Apr 2025 459th Herbert00709 🇵🇱 667 105 14 Jun 2025 460th jwhear 🇺🇸 666 197 1 Oct 2024 461st AlephSquirrel 664 146 14 May 2025 462nd two-bad 🇬🇧 662 97 2 Oct 2024 463rd TaserTheFox 🇺🇸 662 120 8 Oct 2024 463rd yokasuretsu 662 120 26 Jan 2025 463rd Troon 662 120 17 Feb 2025 463rd keelimeguy 🇺🇸 662 120 14 Jun 2025 467th rniii 660 106 2 Oct 2024 467th gastropner 660 106 11 Feb 2025 469th dbut2 🇦🇺 660 179 31 Oct 2024 470th 4hg 🇺🇸 659 59 5 Oct 2024 471st CaedenHarper 🇨🇦 659 100 10 days ago 472nd emgordon154 659 111 12 Jan 2025 473rd BREMAUCY 🇫🇷 657 121 15 days ago 474th DialFrost 🇸🇬 656 67 22 Dec 2024 475th xyangst 655 98 15 Oct 2024 475th BambooleanLogic 🇸🇪 655 98 21 Oct 2024 477th Macweese 655 178 17 hours ago 478th error256 654 142 31 May 2025 479th RyanMHsiao 652 201 1 Oct 2024 480th chartung17 651 122 24 Mar 2025 481st LordSir101 649 99 2 days ago 482nd bac0id 648 180 9 Jan 2025 483rd msbranicky 646 123 3 Oct 2024 483rd bobbysq 646 123 5 Oct 2024 483rd wuzekai518 646 123 8 Oct 2024 483rd vhoulbreque 🇫🇷 646 123 4 Feb 2025 483rd InigoK 🇺🇸 646 123 3 days ago 488th w911 646 183 7 Oct 2024 489th rucin93 🇵🇱 645 144 28 Oct 2024 490th koipondx86 641 123 8 Nov 2024 491st NotEvenIndian 641 124 22 Oct 2024 491st ridingqwerty 🇺🇸 641 124 16 Jan 2025 493rd stefangimmillaro 639 73 1 Oct 2024 494th CaedenHarper 🇨🇦 639 185 3 Jan 2025 495th yoshykai 637 183 12 Apr 2025 496th Jonatan6 🇩🇰 636 110 24 Oct 2024 497th bnic24 636 125 3 Oct 2024 497th adoxography 636 125 22 Oct 2024 497th wh3n3v3r 🇨🇿 636 125 18 Nov 2024 500th elgan65536 636 146 2 Oct 2024 501st Shanethegamer 🇺🇸 631 74 16 Oct 2024 502nd XenThe 🇬🇧 630 102 26 days ago 503rd msbranicky 628 188 7 Jan 2025 504th CatsAreFluffy 626 127 30 Oct 2024 504th WillowWispy 626 127 25 May 2025 506th AlephSquirrel 625 40 1 Oct 2024 507th tomh1012 621 114 17 Oct 2024 508th dokutan 621 127 10 Dec 2024 509th lelbal 621 128 2 Oct 2024 509th Lv0Sys 🇵🇱 621 128 15 Jun 2025 511th DialFrost 🇸🇬 621 307 22 Apr 2025 512th not-a-pokemon 619 113 10 days ago 513th codereport 🇨🇦 617 63 2 Oct 2024 514th BalaM314 617 104 4 Feb 2025 514th acollett89 617 104 18 days ago 516th Schmitt-Very-Cool 617 189 3 Feb 2025 517th HumanoidCPU 616 107 17 Feb 2025 518th madex 🇩🇪 616 129 2 Oct 2024 518th RedzGoose 🇦🇺 616 129 15 Oct 2024 518th calebaitken 616 129 11 Apr 2025 521st MarcMush 🇫🇷 615 91 8 Oct 2024 522nd Ripick 615 135 23 Mar 2025 523rd jupj 🇫🇮 614 114 12 days ago 524th Europe2048 611 130 2 Oct 2024 524th nstearns96 🇬🇧 611 130 2 Oct 2024 Prev 451–525 of 730 Next