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 Hilbert Curve 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 Trinomial Triangle 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers 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 Groovy 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 Harbour Hare Haxe Hush Hy iogii Knight Luau 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 Groovy 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 Harbour Hare Haxe Hush Hy iogii Knight Luau 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 Hilbert Curve 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 Trinomial Triangle 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 Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Turtle Tutorial # Golfer Points Chars Time 376th Shanethegamer 🇺🇸 703 118 2 Oct 2024 377th janlelis 702 68 1 Oct 2024 377th tatzyr 🇯🇵 702 68 23 Dec 2024 379th emgordon154 702 76 7 Jun 2025 380th Shanethegamer 🇺🇸 701 92 3 Oct 2024 380th error256 701 92 7 Oct 2024 380th thatbirdguythatuknownot 701 92 14 Oct 2024 383rd Alex-x90 🇺🇸 701 100 1 Oct 2024 384th cbrt-x 701 157 1 Oct 2024 385th sean-niemann 🇺🇸 699 82 23 Dec 2024 386th LukeBridges 🇬🇧 699 92 3 Oct 2024 387th mousetail 🇳🇱 699 133 3 Oct 2024 388th BlankSpruce 698 123 1 Oct 2024 389th Bulmenisaurus 694 93 6 Oct 2024 389th lynn 694 93 8 Jan 2025 389th RaBa21 🇭🇺 694 93 19 Jul 2025 392nd emgordon154 694 101 25 Nov 2024 393rd Shanethegamer 🇺🇸 693 41 4 Oct 2024 394th emgordon154 693 134 25 Feb 2025 395th Alex-x90 🇺🇸 692 124 1 Oct 2024 395th Herbert00709 🇵🇱 692 124 14 Jun 2025 397th albanian-laundromat 692 147 30 Jun 2025 398th tobeannouncd 692 159 13 Dec 2024 399th Shanethegamer 🇺🇸 691 83 5 Oct 2024 400th xyangst 691 93 1 Oct 2024 400th Salutations45 691 93 17 Nov 2024 400th strattonwhisler 691 93 26 Mar 2025 403rd pardouin 🇫🇷 688 57 3 Oct 2024 404th NickTheEASDude 🇺🇸 687 115 17 Dec 2024 405th dokutan 687 116 19 Oct 2024 406th MeWhenI 🇻🇦 686 68 2 Oct 2024 407th DialFrost 🇸🇬 686 94 1 Oct 2024 407th snoozingnewt 🇺🇸 686 94 13 days ago 409th Lv0Sys 🇵🇱 684 94 15 Jun 2025 409th XenThe 🇬🇧 684 94 7 Jul 2025 411th albanian-laundromat 683 86 4 days ago 412th KatieLG 🇬🇧 682 70 22 hours ago 413th ovs-code 🇩🇪 682 84 3 Oct 2024 414th error256 682 104 14 Oct 2024 415th madex 🇩🇪 681 103 2 Oct 2024 416th aDwarfNamedUrist 679 162 1 Sep 2025 417th Shanethegamer 🇺🇸 678 65 1 Oct 2024 418th plcc0 676 37 6 Apr 2025 419th the-zammers 675 163 1 Dec 2024 420th BlankSpruce 674 104 1 Oct 2024 421st MeWhenI 🇻🇦 673 108 2 Oct 2024 422nd KasperKivimaeki 🇫🇮 672 96 1 Jul 2025 422nd MeWhenI 🇻🇦 672 96 30 Jul 2025 424th Shanethegamer 🇺🇸 672 172 2 Oct 2024 425th edsrzf 🇳🇿 671 99 5 Jul 2025 426th tailorspy 671 128 4 Oct 2024 427th HumanoidCPU 670 96 7 Mar 2025 428th jerrandolph 669 177 8 days ago 429th error256 668 101 24 Oct 2024 430th Herbert00709 🇵🇱 668 105 14 Jun 2025 431st AlephSquirrel 664 146 14 May 2025 432nd MeWhenI 🇻🇦 664 174 13 Feb 2025 433rd two-bad 🇬🇧 663 97 2 Oct 2024 433rd LordSir101 663 97 10 Aug 2025 435th dbut2 🇦🇺 662 179 31 Oct 2024 436th rniii 661 106 2 Oct 2024 436th gastropner 661 106 11 Feb 2025 438th CaedenHarper 🇨🇦 661 140 46 mins ago 439th 4hg 🇺🇸 659 59 5 Oct 2024 440th MeWhenI 🇻🇦 659 88 2 Oct 2024 440th Shanethegamer 🇺🇸 659 88 5 Oct 2024 442nd emgordon154 659 111 12 Jan 2025 443rd DialFrost 🇸🇬 658 67 22 Dec 2024 444th GolfingSuccess 🇬🇷 658 98 5 Oct 2024 444th firegene 🇮🇪 658 98 21 Oct 2024 444th JunkIce 658 98 3 Dec 2024 447th BambooleanLogic 🇸🇪 656 98 21 Oct 2024 448th error256 654 142 31 May 2025 449th SirBogman 🇺🇸 652 99 8 Oct 2024 450th MeWhenI 🇻🇦 652 142 2 Oct 2024 First Prev 376–450 of 764 Next Last