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 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 Mandelbrot 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 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 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 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 Mandelbrot 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 601st MeWhenI 🇻🇦 499 149 4 Oct 2024 602nd pres-abhisheksinha 498 161 8 Oct 2024 603rd Mabeloid 🇳🇴 495 133 2 Oct 2024 604th jlangvand 495 141 15 Oct 2024 604th HumanoidCPU 495 141 7 Mar 2025 606th ibixina 495 162 13 Oct 2024 606th TheAtrossian 495 162 5 Jan 2025 608th TheRealOhead 🇺🇸 489 131 1 Oct 2024 609th HumanoidCPU 488 145 5 Oct 2024 610th Vaekor 486 165 15 Dec 2024 611th JunkIce 484 136 3 Dec 2024 612th Mabeloid 🇳🇴 482 145 2 Oct 2024 613th h-hh-hhh 🇺🇦 482 177 2 Nov 2024 614th snoozingnewt 🇺🇸 480 137 27 Jan 2025 615th alphafalfa 476 92 8 Nov 2024 616th KatieLG 🇬🇧 476 108 13 Oct 2024 617th h-hh-hhh 🇺🇦 475 147 2 Nov 2024 618th JesseNoEyes 🇺🇸 475 169 1 Oct 2024 619th mitzal 474 180 9 Feb 2025 620th MiffOttah 472 150 6 Oct 2024 621st zyc-2024 🇨🇳 472 170 5 Oct 2024 622nd Maximizer02 472 201 1 Oct 2024 623rd ComputerKWasTaken 🇺🇸 469 171 14 Oct 2024 624th varhammer 🇷🇺 463 223 23 Feb 2025 625th Yewzir 🇧🇪 460 171 26 Dec 2024 626th madex 🇩🇪 458 104 2 Oct 2024 627th OSYCh314 🇦🇺 451 178 2 Nov 2024 628th dokutan 450 63 26 Nov 2024 629th IISResetMe 447 104 27 Mar 2025 630th calum12345 446 180 26 Mar 2025 631st dokutan 445 109 19 Oct 2024 632nd grey0ut 443 105 11 Jan 2025 633rd zt14427 441 182 27 Dec 2024 634th MyXoToD 🇩🇪 439 146 9 days ago 635th IoLimmer 439 183 10 Oct 2024 636th aksyristos 436 184 15 Nov 2024 637th dokutan 424 132 3 Oct 2024 638th dieggsy 418 247 10 Oct 2024 639th MeWhenI 🇻🇦 417 143 2 Oct 2024 640th CheeseCake628 🇳🇴 411 160 16 days ago 641st Mabeloid 🇳🇴 403 159 12 Oct 2024 642nd Ralac07 🇦🇺 395 162 3 Oct 2024 643rd snoozingnewt 🇺🇸 383 176 2 Oct 2024 643rd fischfood 383 176 22 Oct 2024 645th c0d3-4-F00d 🇩🇪 380 184 9 Jan 2025 646th ehulinsky 🇺🇸 378 158 2 Apr 2025 647th RedzGoose 🇦🇺 369 187 2 Oct 2024 648th P1nk-P0nk 367 215 18 Oct 2024 649th sciencejiho 355 197 11 Feb 2025 650th The-Wolfson 348 230 16 Dec 2024 651st Ernest1338 337 275 26 Oct 2024 652nd noahhorlacher 335 191 7 Dec 2024 653rd te-chnical 311 258 4 May 2025 654th ReterikHub 275 310 17 Jan 2025 655th arebbsba 271 296 9 Jan 2025 656th MeWhenI 🇻🇦 270 407 6 Oct 2024 657th Msleizak 🇫🇷 206 226 17 days ago 658th AidanWalter 149 540 1 Jan 2025 659th bignamehyp 120 667 14 Nov 2024 660th lyphyser 0 15 10 days ago 661st 2bular 0 16 22 Mar 2025 662nd darrenks 0 17 22 Mar 2025 663rd Natanaelel 🇸🇪 0 18 23 Mar 2025 664th plcc0 0 21 4 Apr 2025 665th kg583 🇺🇸 0 25 8 Feb 2025 666th lyxal 🇦🇺 0 27 19 days ago 667th themoonisacheese 0 39 3 Mar 2025 668th DialFrost 🇸🇬 0 67 13 Feb 2025 669th chunes3 🇺🇸 0 69 13 Feb 2025 670th sean-niemann 🇺🇸 0 80 29 Apr 2025 671st albanian-laundromat 0 123 20 hours ago 672nd edsrzf 🇳🇿 0 145 7 days ago 673rd 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