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 edsrzf 🇳🇿 671 99 21 days ago 452nd aDwarfNamedUrist 671 164 16 Oct 2024 453rd tailorspy 669 128 4 Oct 2024 454th error256 668 101 24 Oct 2024 455th jtaxen 668 119 21 Oct 2024 455th psbpsbp 668 119 19 Dec 2024 455th klixel 🇨🇦 668 119 9 Apr 2025 458th Herbert00709 🇵🇱 667 105 14 Jun 2025 459th jwhear 🇺🇸 666 197 1 Oct 2024 460th two-bad 🇬🇧 662 97 2 Oct 2024 461st TaserTheFox 🇺🇸 662 120 8 Oct 2024 461st yokasuretsu 662 120 26 Jan 2025 461st Troon 662 120 17 Feb 2025 461st keelimeguy 🇺🇸 662 120 14 Jun 2025 465th rniii 660 106 2 Oct 2024 465th gastropner 660 106 11 Feb 2025 467th dbut2 🇦🇺 660 179 31 Oct 2024 468th 4hg 🇺🇸 659 59 5 Oct 2024 469th CaedenHarper 🇨🇦 659 100 3 days ago 470th emgordon154 659 111 12 Jan 2025 471st BREMAUCY 🇫🇷 657 121 8 days ago 472nd DialFrost 🇸🇬 656 67 22 Dec 2024 473rd xyangst 655 98 15 Oct 2024 473rd BambooleanLogic 🇸🇪 655 98 21 Oct 2024 475th error256 654 142 31 May 2025 476th RyanMHsiao 652 201 1 Oct 2024 477th chartung17 651 122 24 Mar 2025 478th msbranicky 646 123 3 Oct 2024 478th bobbysq 646 123 5 Oct 2024 478th wuzekai518 646 123 8 Oct 2024 478th vhoulbreque 🇫🇷 646 123 4 Feb 2025 482nd bac0id 646 180 9 Jan 2025 483rd w911 646 183 7 Oct 2024 484th rucin93 🇵🇱 645 144 28 Oct 2024 485th Antibrain0 641 123 8 Nov 2024 486th NotEvenIndian 641 124 22 Oct 2024 486th ridingqwerty 🇺🇸 641 124 16 Jan 2025 488th stefangimmillaro 639 73 1 Oct 2024 489th CaedenHarper 🇨🇦 639 185 3 Jan 2025 490th Jonatan6 🇩🇰 636 110 24 Oct 2024 491st bnic24 636 125 3 Oct 2024 491st adoxography 636 125 22 Oct 2024 491st wh3n3v3r 🇨🇿 636 125 18 Nov 2024 494th elgan65536 636 146 2 Oct 2024 495th yoshykai 636 183 12 Apr 2025 496th Shanethegamer 🇺🇸 631 74 16 Oct 2024 497th XenThe 🇬🇧 629 102 19 days ago 498th msbranicky 628 188 7 Jan 2025 499th CatsAreFluffy 626 127 30 Oct 2024 499th WillowWispy 626 127 25 May 2025 501st AlephSquirrel 625 40 1 Oct 2024 502nd tomh1012 621 114 17 Oct 2024 503rd dokutan 621 127 10 Dec 2024 504th lelbal 621 128 2 Oct 2024 504th Lv0Sys 🇵🇱 621 128 15 Jun 2025 506th DialFrost 🇸🇬 621 307 22 Apr 2025 507th not-a-pokemon 619 113 3 days ago 508th codereport 🇨🇦 617 63 2 Oct 2024 509th BalaM314 617 104 4 Feb 2025 509th acollett89 617 104 11 days ago 511th HumanoidCPU 616 107 17 Feb 2025 512th madex 🇩🇪 616 129 2 Oct 2024 512th RedzGoose 🇦🇺 616 129 15 Oct 2024 512th calebaitken 616 129 11 Apr 2025 515th Schmitt-Very-Cool 616 189 3 Feb 2025 516th MarcMush 🇫🇷 615 91 8 Oct 2024 517th Ripick 615 135 23 Mar 2025 518th jupj 🇫🇮 614 114 5 days ago 519th Europe2048 611 130 2 Oct 2024 519th nstearns96 🇬🇧 611 130 2 Oct 2024 519th rollershutter 611 130 10 Jan 2025 519th Stockoh 🇫🇷 611 130 22 days ago 523rd bac0id 608 141 10 Jan 2025 524th MeWhenI 🇻🇦 607 111 2 Oct 2024 525th HumanoidCPU 606 106 7 Mar 2025 Prev 451–525 of 722 Next
