The Mandelbrot hole will go live in approximately 12 hours. Why not try and solve it ahead of time?
Leap Years 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 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 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 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 Chars Time 821st voytxt 🇨🇿 878 65 16 May 2022 821st stefangimmillaro 878 65 9 Jun 2023 821st r-brinke 🇳🇱 878 65 27 Dec 2023 821st 77Tigers 878 65 11 Apr 2024 821st mousetail 🇳🇱 878 65 8 Nov 2024 831st PhysicDev 🇫🇷 878 108 27 May 2021 831st FrederikHutfless 🇩🇪 878 108 12 Jan 2023 831st lukashert 878 108 1 Mar 2023 831st msbranicky 878 108 9 Jan 2024 831st lordsnek 878 108 26 Jan 2024 831st HumanoidCPU 878 108 19 Feb 2024 831st Jacob385 878 108 27 Feb 2024 831st Fishyfii 878 108 17 Dec 2024 839th sean-niemann 🇺🇸 877 48 29 Oct 2022 839th Lydxn 🇨🇦 877 48 30 Oct 2022 839th inventshah 877 48 30 Oct 2022 839th MeWhenI 🇻🇦 877 48 2 Nov 2022 839th Steffan153 🇫🇮 877 48 26 Dec 2022 839th DialFrost 🇸🇬 877 48 8 Nov 2023 839th dokutan 877 48 25 Sep 2024 846th sean-niemann 🇺🇸 876 47 20 Mar 2022 846th MeWhenI 🇻🇦 876 47 10 Oct 2022 846th Steffan153 🇫🇮 876 47 9 Feb 2023 846th DialFrost 🇸🇬 876 47 8 Nov 2023 846th dokutan 876 47 25 Sep 2024 851st inventshah 876 50 9 Sep 2022 851st janbehrens 🇩🇪 876 50 14 Sep 2022 853rd GrayJoKing 🇦🇺 876 57 16 Jul 2023 854th DialFrost 🇸🇬 876 109 7 Mar 2025 854th MeWhenI 🇻🇦 876 109 28 Mar 2025 856th Re-Adventures 🇮🇳 875 81 2 Jan 2022 856th Betuaredead 875 81 4 Jan 2023 856th aksyristos 875 81 30 Jan 2023 856th CatsAreFluffy 875 81 19 Feb 2023 856th namcartoon06 875 81 30 Jun 2023 856th Herbert00709 🇵🇱 875 81 17 Nov 2023 856th HumanoidCPU 875 81 19 Feb 2024 863rd somebody1234 874 26 5 Dec 2018 863rd AlexDaniel 🇪🇪 874 26 5 Apr 2020 865th Steffan153 🇫🇮 874 39 26 Dec 2022 865th Alessandro-Balconi 🇮🇹 874 39 26 Dec 2022 867th Yewzir 🇧🇪 874 55 29 Mar 2024 868th 4hg 🇺🇸 873 45 13 Sep 2023 868th chunes3 🇺🇸 873 45 13 Sep 2023 868th Bubbler-4 873 45 13 Sep 2023 868th Steffan153 🇫🇮 873 45 13 Sep 2023 868th GolfingSuccess 🇬🇷 873 45 28 Sep 2023 868th Lydxn 🇨🇦 873 45 28 Sep 2023 868th Yewzir 🇧🇪 873 45 5 Mar 2024 875th oparisblue 873 46 24 Mar 2019 875th mrxz 🇳🇱 873 46 23 Jun 2019 875th alexkunin 873 46 3 Jul 2019 875th EFHIII 873 46 16 Aug 2020 875th yzhs 🇩🇪 873 46 20 Aug 2020 875th hyvyys 873 46 18 Sep 2020 875th bastienvoirin 🇫🇷 873 46 28 Nov 2020 875th Re-Adventures 🇮🇳 873 46 25 Mar 2021 875th PGPereira 873 46 27 Mar 2021 875th con-cs 873 46 18 Oct 2021 875th ledietz 873 46 16 Feb 2022 875th zakariamouhid 873 46 20 May 2023 875th adriweb 🇫🇷 873 46 28 Aug 2023 875th stellartux 873 46 27 Dec 2023 875th itserasmus 873 46 26 Jan 2024 875th HumanoidCPU 873 46 19 Feb 2024 875th olleicua 🇺🇸 873 46 20 Feb 2024 875th rollershutter 873 46 4 Jul 2024 875th deancureton 873 46 29 Dec 2024 875th duckyluuk 🇳🇱 873 46 22 Jan 2025 875th acer-xq 873 46 4 Feb 2025 875th BalaM314 873 46 8 Feb 2025 897th nwellnhof 🇩🇪 873 88 3 Sep 2020 897th MeWhenI 🇻🇦 873 88 9 Feb 2023 897th sean-niemann 🇺🇸 873 88 17 Jun 2023 900th MeWhenI 🇻🇦 872 46 31 Dec 2024 Prev 826–900 of 4,474 Next