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 Knight 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 Knight 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 676th Yewzir 🇧🇪 460 171 26 Dec 2024 677th madex 🇩🇪 459 104 2 Oct 2024 678th clayboll99 452 176 10 Jul 2025 679th dokutan 451 63 26 Nov 2024 680th IISResetMe 449 104 27 Mar 2025 681st Upload-and-View 🇺🇦 449 177 11 days ago 682nd varhammer 🇷🇺 448 223 23 Feb 2025 683rd OSYCh314 🇦🇺 447 178 2 Nov 2024 684th dokutan 445 109 19 Oct 2024 685th grey0ut 444 105 11 Jan 2025 686th calum12345 442 180 26 Mar 2025 687th MyXoToD 🇩🇪 440 146 26 May 2025 688th zt14427 437 182 27 Dec 2024 689th IoLimmer 434 183 10 Oct 2024 690th aksyristos 432 184 15 Nov 2024 691st estomagordo 🇳🇱 427 186 15 Jul 2025 692nd dokutan 424 132 3 Oct 2024 693rd MeWhenI 🇻🇦 417 143 2 Oct 2024 694th CheeseCake628 🇳🇴 412 160 19 May 2025 695th dieggsy 405 247 10 Oct 2024 696th Mabeloid 🇳🇴 404 159 12 Oct 2024 697th Ralac07 🇦🇺 397 162 3 Oct 2024 698th snoozingnewt 🇺🇸 383 176 2 Oct 2024 698th fischfood 383 176 22 Oct 2024 700th c0d3-4-F00d 🇩🇪 380 184 9 Jan 2025 701st ehulinsky 🇺🇸 378 158 2 Apr 2025 702nd RedzGoose 🇦🇺 369 187 2 Oct 2024 703rd RobGLambert 369 232 8 Jun 2025 704th P1nk-P0nk 367 215 18 Oct 2024 705th gautambp 365 218 24 Jun 2025 706th sciencejiho 355 197 11 Feb 2025 707th The-Wolfson 350 230 16 Dec 2024 708th Zhenyu-Bo 349 228 22 days ago 709th RobGLambert 340 273 8 Jun 2025 710th Ernest1338 338 275 26 Oct 2024 711th noahhorlacher 336 191 7 Dec 2024 712th te-chnical 308 258 4 May 2025 713th ReterikHub 276 310 17 Jan 2025 714th Mikey-Beep 🇬🇧 273 349 9 days ago 715th MeWhenI 🇻🇦 270 407 6 Oct 2024 716th arebbsba 269 296 9 Jan 2025 717th Msleizak 🇫🇷 206 226 19 May 2025 718th vkptimon 150 776 9 Jul 2025 719th AidanWalter 147 540 1 Jan 2025 720th bignamehyp 119 667 14 Nov 2024 721st dokutan 60 2,475 2 days ago 722nd lyphyser 0 15 25 May 2025 723rd 2bular 0 16 22 Mar 2025 724th darrenks 0 17 22 Mar 2025 725th Natanaelel 🇸🇪 0 18 23 Mar 2025 726th plcc0 0 21 4 Apr 2025 727th kg583 🇺🇸 0 25 8 Feb 2025 728th lyxal 🇦🇺 0 27 17 May 2025 729th themoonisacheese 0 35 13 Jun 2025 730th ovs-code 🇩🇪 0 54 9 Jul 2025 731st GrayJoKing 🇦🇺 0 55 13 Jul 2025 732nd ovs-code 🇩🇪 0 58 13 Jul 2025 733rd AlephSquirrel 0 63 15 Jun 2025 734th DialFrost 🇸🇬 0 67 13 Feb 2025 735th chunes3 🇺🇸 0 69 13 Feb 2025 736th ovs-code 🇩🇪 0 76 13 Jun 2025 737th sean-niemann 🇺🇸 0 80 29 Apr 2025 738th albanian-laundromat 0 123 4 Jun 2025 739th edsrzf 🇳🇿 0 142 24 Jul 2025 740th MatthewF19 0 192 17 May 2025 741st dokutan 0 219 28 Jun 2025 Prev 676–741 of 741
