Card Number Validation in all languages in chars. 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 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 Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 601st MiffOttah 472 150 6 Oct 2024 602nd Maximizer02 472 201 1 Oct 2024 603rd kurkale6ka 470 137 16 Oct 2024 603rd 4ndyJ 🇬🇧 470 137 14 Nov 2024 605th ejini6969 467 102 25 days ago 606th BREMAUCY 🇫🇷 467 138 2 Oct 2024 607th scpchicken 🇵🇼 463 139 6 Oct 2024 608th varhammer 🇷🇺 463 223 23 Feb 2025 609th NanduBC 460 140 1 Oct 2024 609th Mikey-Beep 🇬🇧 460 140 7 Oct 2024 609th jmerle 🇳🇱 460 140 10 Jan 2025 609th RobertHoeh 460 140 3 Mar 2025 609th smilesformiles3 460 140 27 days ago 609th artem-aramma 460 140 21 days ago 615th Yewzir 🇧🇪 460 171 26 Dec 2024 616th madex 🇩🇪 458 104 2 Oct 2024 617th FranklinJiaChen 457 141 2 Oct 2024 618th 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dieggsy 418 247 10 Oct 2024 646th snoozingnewt 🇺🇸 417 137 27 Jan 2025 647th MeWhenI 🇻🇦 417 143 2 Oct 2024 648th cdesodt 415 155 16 Oct 2024 649th lhulinsky 410 157 21 Oct 2024 650th ThatAlo 408 158 9 Dec 2024 651st Mabeloid 🇳🇴 403 159 12 Oct 2024 652nd CheeseCake628 🇳🇴 402 160 5 Nov 2024 653rd pres-abhisheksinha 400 161 8 Oct 2024 654th ibixina 397 162 13 Oct 2024 654th TheAtrossian 397 162 5 Jan 2025 656th Ralac07 🇦🇺 396 162 3 Oct 2024 657th Vaekor 390 165 15 Dec 2024 658th fischfood 383 176 22 Oct 2024 659th JesseNoEyes 🇺🇸 381 169 1 Oct 2024 660th c0d3-4-F00d 🇩🇪 380 184 9 Jan 2025 661st zyc-2024 🇨🇳 379 170 5 Oct 2024 662nd ehulinsky 🇺🇸 378 158 2 Apr 2025 663rd ComputerKWasTaken 🇺🇸 377 171 14 Oct 2024 664th RedzGoose 🇦🇺 369 187 2 Oct 2024 665th RobGLambert 369 232 8 Jun 2025 666th P1nk-P0nk 367 215 18 Oct 2024 667th snoozingnewt 🇺🇸 365 176 2 Oct 2024 668th OSYCh314 🇦🇺 362 178 2 Nov 2024 669th calum12345 358 180 26 Mar 2025 670th CheeseCake628 🇳🇴 357 160 19 May 2025 671st sciencejiho 355 197 11 Feb 2025 672nd zt14427 354 182 27 Dec 2024 673rd IoLimmer 352 183 10 Oct 2024 674th aksyristos 350 184 15 Nov 2024 675th The-Wolfson 350 230 16 Dec 2024 Prev 601–675 of 706 Next