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 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 Chars Time 601st mitzal 476 180 9 Feb 2025 602nd h-hh-hhh 🇺🇦 475 147 2 Nov 2024 603rd sciencedjinn 474 136 8 Nov 2024 603rd ihatethefrench 474 136 4 Jan 2025 605th MiffOttah 472 150 6 Oct 2024 606th Maximizer02 472 201 1 Oct 2024 607th kurkale6ka 470 137 16 Oct 2024 607th 4ndyJ 🇬🇧 470 137 14 Nov 2024 609th ejini6969 467 102 27 days ago 610th BREMAUCY 🇫🇷 467 138 2 Oct 2024 611th scpchicken 🇵🇼 463 139 6 Oct 2024 612th varhammer 🇷🇺 463 223 23 Feb 2025 613th NanduBC 460 140 1 Oct 2024 613th Mikey-Beep 🇬🇧 460 140 7 Oct 2024 613th jmerle 🇳🇱 460 140 10 Jan 2025 613th RobertHoeh 460 140 3 Mar 2025 613th smilesformiles3 460 140 12 Jun 2025 613th artem-aramma 460 140 23 days ago 619th Yewzir 🇧🇪 460 171 26 Dec 2024 620th madex 🇩🇪 458 104 2 Oct 2024 621st FranklinJiaChen 457 141 2 Oct 2024 622nd brimstonetrader 454 142 17 Oct 2024 622nd codewrite 🇬🇧 454 142 5 May 2025 622nd RobGLambert 454 142 8 Jun 2025 625th dokutan 451 63 26 Nov 2024 626th GeneralFabian 450 143 9 Dec 2024 626th CutSandstone 450 143 30 Jan 2025 626th kistlerf 🇨🇭 450 143 19 May 2025 629th IISResetMe 449 104 27 Mar 2025 630th hiichbindermax 447 144 2 Oct 2024 630th mathisfun271 447 144 14 Oct 2024 630th bob-th 447 144 22 Oct 2024 633rd dokutan 445 109 19 Oct 2024 634th grey0ut 444 105 11 Jan 2025 635th Flekay 🇩🇪 444 145 24 hours ago 636th croc54 441 146 15 Dec 2024 637th MyXoToD 🇩🇪 439 146 26 May 2025 638th PyryL 🇫🇮 438 147 1 Mar 2025 639th mbittner20 435 148 13 Oct 2024 640th dokutan 431 130 17 Oct 2024 641st Mabeloid 🇳🇴 429 133 2 Oct 2024 642nd jameswmccarty 429 150 5 Oct 2024 642nd yousefalizadeh 429 150 23 Oct 2024 642nd feherd 429 150 31 Oct 2024 642nd TheZwierzLF 🇵🇱 429 150 17 May 2025 646th adamnielson42 🇺🇸 424 152 6 Oct 2024 646th voidgloom 424 152 22 Oct 2024 648th dieggsy 418 247 10 Oct 2024 649th snoozingnewt 🇺🇸 417 137 27 Jan 2025 650th MeWhenI 🇻🇦 417 143 2 Oct 2024 651st cdesodt 416 155 16 Oct 2024 652nd lhulinsky 410 157 21 Oct 2024 653rd ThatAlo 408 158 9 Dec 2024 654th Mabeloid 🇳🇴 403 159 12 Oct 2024 655th CheeseCake628 🇳🇴 403 160 5 Nov 2024 656th pres-abhisheksinha 400 161 8 Oct 2024 657th ibixina 398 162 13 Oct 2024 657th TheAtrossian 398 162 5 Jan 2025 659th Ralac07 🇦🇺 396 162 3 Oct 2024 660th Vaekor 390 165 15 Dec 2024 661st fischfood 383 176 22 Oct 2024 662nd JesseNoEyes 🇺🇸 381 169 1 Oct 2024 663rd c0d3-4-F00d 🇩🇪 380 184 9 Jan 2025 664th zyc-2024 🇨🇳 379 170 5 Oct 2024 665th ehulinsky 🇺🇸 378 158 2 Apr 2025 666th ComputerKWasTaken 🇺🇸 377 171 14 Oct 2024 667th RedzGoose 🇦🇺 369 187 2 Oct 2024 668th RobGLambert 369 232 8 Jun 2025 669th P1nk-P0nk 367 215 18 Oct 2024 670th clayboll99 366 176 32 hours ago 671st snoozingnewt 🇺🇸 365 176 2 Oct 2024 672nd OSYCh314 🇦🇺 362 178 2 Nov 2024 673rd calum12345 358 180 26 Mar 2025 674th CheeseCake628 🇳🇴 357 160 19 May 2025 675th sciencejiho 355 197 11 Feb 2025 Prev 601–675 of 710 Next