The Mandelbrot hole will go live in approximately 6 hours. Why not try and solve it ahead of time?
Catalan Numbers in all languages in bytes. 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 Bytes Time 219th arjanadriaanse 🇳🇱 932 49 9 Feb 2022 219th ovs-code 🇩🇪 932 49 6 Mar 2022 219th GrayJoKing 🇦🇺 932 49 10 Mar 2022 219th Sakisan 🇧🇪 932 49 7 Apr 2022 219th Steffan153 🇫🇮 932 49 24 Sep 2022 219th btnlq 932 49 17 Oct 2023 219th Natanaelel 🇸🇪 932 49 3 Jan 2024 219th DialFrost 🇸🇬 932 49 5 Aug 2024 219th pardouin 🇫🇷 932 49 8 Oct 2024 219th error256 932 49 26 Oct 2024 219th sean-niemann 🇺🇸 932 49 30 Dec 2024 237th btjones0 931 46 6 Feb 2022 237th SirBogman 🇺🇸 931 46 10 May 2022 237th 051 🇸🇬 931 46 19 Aug 2022 237th AlephSquirrel 931 46 7 Jan 2023 237th thehylian 931 46 11 Jan 2023 237th zacjl 931 46 20 Apr 2023 237th janbehrens 🇩🇪 931 46 24 Apr 2023 237th crispshaker 931 46 19 Jun 2023 237th ndren 931 46 5 Aug 2023 237th CornerMercury 🇬🇧 931 46 5 Aug 2023 237th wen1now 931 46 6 Nov 2023 237th rucin93 🇵🇱 931 46 6 Dec 2023 237th ballaire 931 46 27 Jan 2024 237th wuzekai518 931 46 21 Jun 2024 237th ahmetdemirag 🇨🇾 931 46 30 Jun 2024 237th FranklinJiaChen 931 46 3 Jul 2024 237th codingisgreatbutiamnot 931 46 25 Jul 2024 237th martion2007 931 46 14 Aug 2024 237th bizy-coder 931 46 16 Aug 2024 237th CaedenHarper 🇨🇦 931 46 2 Sep 2024 237th bzijlema 🇳🇱 931 46 14 Oct 2024 237th dokutan 931 46 18 Mar 2025 237th plcc0 931 46 27 Apr 2025 237th KasperKivimaeki 🇫🇮 931 46 21 hours ago 261st akshatj27 🇦🇶 928 33 29 Jan 2022 261st Waffle3z 928 33 29 Jan 2022 261st ovs-code 🇩🇪 928 33 29 Jan 2022 261st rak1507 🇬🇧 928 33 29 Jan 2022 261st Shanethegamer 🇺🇸 928 33 29 Jan 2022 261st jared-hughes 928 33 12 Sep 2022 261st ritwin-n 928 33 11 Jun 2023 261st Natanaelel 🇸🇪 928 33 3 Jan 2024 261st jipsong 🇩🇪 928 33 30 Jun 2024 261st fuzzylojik-golf 🇺🇸 928 33 16 May 2025 271st sisyphus-ppcg 🇦🇺 927 42 22 May 2022 271st Lydxn 🇨🇦 927 42 22 May 2022 271st primo-ppcg 🇹🇭 927 42 23 May 2022 271st iakolzin 927 42 28 May 2022 271st saito-ta 🇯🇵 927 42 8 Jun 2022 271st nwellnhof 🇩🇪 927 42 8 Jun 2022 277th GrayJoKing 🇦🇺 923 26 29 Jan 2022 277th primo-ppcg 🇹🇭 923 26 29 Jan 2022 277th Natanaelel 🇸🇪 923 26 3 Jan 2024 280th primo-ppcg 🇹🇭 923 42 5 Apr 2025 281st edsrzf 🇳🇿 921 44 15 Jan 2025 281st JayXon 🇺🇸 921 44 15 Jan 2025 283rd prplz 🇦🇺 919 33 31 Jan 2022 283rd nwellnhof 🇩🇪 919 33 1 Feb 2022 283rd bitsandbeyond 🇳🇱 919 33 30 Aug 2024 286th MeWhenI 🇻🇦 919 34 15 Jul 2022 287th Steffan153 🇫🇮 916 47 3 Aug 2024 287th DialFrost 🇸🇬 916 47 3 Aug 2024 287th rucin93 🇵🇱 916 47 3 Aug 2024 287th sean-niemann 🇺🇸 916 47 3 Aug 2024 287th JayXon 🇺🇸 916 47 6 Aug 2024 287th Lydxn 🇨🇦 916 47 6 Aug 2024 287th emplv 🇱🇻 916 47 29 Oct 2024 287th lukegustafson 🇺🇸 916 47 3 Apr 2025 295th zacjl 915 44 3 Dec 2024 295th 2bular 915 44 11 days ago 297th Lydxn 🇨🇦 915 54 29 Jan 2022 297th JayXon 🇺🇸 915 54 29 Jan 2022 297th primo-ppcg 🇹🇭 915 54 29 Jan 2022 297th sisyphus-ppcg 🇦🇺 915 54 2 Feb 2022 Prev 226–300 of 1,782 Next