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 ejini6969 467 102 23 days ago 602nd BREMAUCY 🇫🇷 467 138 2 Oct 2024 603rd scpchicken 🇵🇼 463 139 6 Oct 2024 604th varhammer 🇷🇺 463 223 23 Feb 2025 605th NanduBC 460 140 1 Oct 2024 605th Mikey-Beep 🇬🇧 460 140 7 Oct 2024 605th jmerle 🇳🇱 460 140 10 Jan 2025 605th RobertHoeh 460 140 3 Mar 2025 605th smilesformiles3 460 140 24 days ago 605th artem-aramma 460 140 18 days ago 611th Yewzir 🇧🇪 460 171 26 Dec 2024 612th madex 🇩🇪 458 104 2 Oct 2024 613th FranklinJiaChen 457 141 2 Oct 2024 614th brimstonetrader 453 142 17 Oct 2024 614th codewrite 🇬🇧 453 142 5 May 2025 614th RobGLambert 453 142 8 Jun 2025 617th dokutan 451 63 26 Nov 2024 618th GeneralFabian 450 143 9 Dec 2024 618th CutSandstone 450 143 30 Jan 2025 618th kistlerf 🇨🇭 450 143 19 May 2025 621st IISResetMe 449 104 27 Mar 2025 622nd hiichbindermax 447 144 2 Oct 2024 622nd mathisfun271 447 144 14 Oct 2024 622nd bob-th 447 144 22 Oct 2024 625th dokutan 445 109 19 Oct 2024 626th grey0ut 444 105 11 Jan 2025 627th croc54 441 146 15 Dec 2024 628th MyXoToD 🇩🇪 439 146 26 May 2025 629th PyryL 🇫🇮 438 147 1 Mar 2025 630th mbittner20 435 148 13 Oct 2024 631st dokutan 431 130 17 Oct 2024 632nd Mabeloid 🇳🇴 429 133 2 Oct 2024 633rd jameswmccarty 429 150 5 Oct 2024 633rd yousefalizadeh 429 150 23 Oct 2024 633rd feherd 429 150 31 Oct 2024 633rd RaBa21 429 150 4 May 2025 633rd TheZwierzLF 🇵🇱 429 150 17 May 2025 638th adamnielson42 🇺🇸 424 152 6 Oct 2024 638th voidgloom 424 152 22 Oct 2024 640th dirckvdende 421 153 6 days ago 641st dieggsy 418 247 10 Oct 2024 642nd snoozingnewt 🇺🇸 417 137 27 Jan 2025 643rd MeWhenI 🇻🇦 417 143 2 Oct 2024 644th cdesodt 415 155 16 Oct 2024 645th lhulinsky 410 157 21 Oct 2024 646th ThatAlo 408 158 9 Dec 2024 647th Mabeloid 🇳🇴 403 159 12 Oct 2024 648th CheeseCake628 🇳🇴 402 160 5 Nov 2024 649th pres-abhisheksinha 400 161 8 Oct 2024 650th ibixina 397 162 13 Oct 2024 650th TheAtrossian 397 162 5 Jan 2025 652nd Ralac07 🇦🇺 396 162 3 Oct 2024 653rd Vaekor 390 165 15 Dec 2024 654th fischfood 383 176 22 Oct 2024 655th JesseNoEyes 🇺🇸 381 169 1 Oct 2024 656th c0d3-4-F00d 🇩🇪 380 184 9 Jan 2025 657th zyc-2024 🇨🇳 379 170 5 Oct 2024 658th ehulinsky 🇺🇸 378 158 2 Apr 2025 659th ComputerKWasTaken 🇺🇸 377 171 14 Oct 2024 660th RedzGoose 🇦🇺 369 187 2 Oct 2024 661st RobGLambert 369 232 8 Jun 2025 662nd P1nk-P0nk 367 215 18 Oct 2024 663rd snoozingnewt 🇺🇸 365 176 2 Oct 2024 664th OSYCh314 🇦🇺 362 178 2 Nov 2024 665th calum12345 358 180 26 Mar 2025 666th CheeseCake628 🇳🇴 357 160 19 May 2025 667th sciencejiho 355 197 11 Feb 2025 668th zt14427 354 182 27 Dec 2024 669th IoLimmer 352 183 10 Oct 2024 670th aksyristos 350 184 15 Nov 2024 671st The-Wolfson 348 230 16 Dec 2024 672nd RobGLambert 340 273 8 Jun 2025 673rd Ernest1338 338 275 26 Oct 2024 674th noahhorlacher 336 191 7 Dec 2024 675th gautambp 295 218 12 days ago Prev 601–675 of 699 Next