The Mandelbrot hole will go live in approximately 8 hours. Why not try and solve it ahead of time?
Happy 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 667th MeWhenI 🇻🇦 868 148 9 Feb 2025 667th pardouin 🇫🇷 868 148 25 Feb 2025 678th ArmaanAS 867 70 8 Mar 2021 678th Hebelub 867 70 5 Jan 2024 678th Dataen 867 70 5 Jan 2024 678th dokutan 867 70 23 Jan 2024 682nd lynn 865 34 13 Apr 2021 682nd jared-hughes 865 34 30 Sep 2021 682nd Natanaelel 🇸🇪 865 34 28 Nov 2023 682nd primo-ppcg 🇹🇭 865 34 24 Mar 2025 686th DialFrost 🇸🇬 865 73 12 Oct 2023 687th MeWhenI 🇻🇦 864 61 23 May 2023 687th GrayJoKing 🇦🇺 864 61 15 Jan 2024 687th namelessiw 864 61 5 Mar 2024 687th neel11235813 864 61 10 Mar 2024 687th duckyluuk 🇳🇱 864 61 14 Jul 2024 687th b-illy 🇬🇧 864 61 14 Sep 2024 687th DialFrost 🇸🇬 864 61 26 Dec 2024 687th fuzzylojik-golf 🇺🇸 864 61 30 May 2025 695th annaproxy 863 46 18 Feb 2022 696th duckyluuk 🇳🇱 863 70 26 Oct 2024 697th Yewzir 🇧🇪 863 135 23 Apr 2023 698th emplv 🇱🇻 862 67 28 Mar 2025 699th Steffan153 🇫🇮 862 81 3 Feb 2023 699th GrayJoKing 🇦🇺 862 81 12 Feb 2023 701st ovs-code 🇩🇪 862 95 10 Jan 2023 702nd MeWhenI 🇻🇦 862 98 28 Aug 2024 703rd jared-hughes 862 100 20 Jul 2022 704th MeWhenI 🇻🇦 861 78 27 Dec 2022 705th emgordon154 859 58 22 Dec 2021 706th treeowl 859 79 27 Feb 2019 706th user189032 859 79 29 May 2019 706th cbrt-x 859 79 15 Sep 2023 709th m-tkach 🇺🇦 858 77 5 Dec 2023 710th gilufin 857 55 30 May 2021 710th Natanaelel 🇸🇪 857 55 10 May 2023 712th DaCuteRaccoon 857 65 30 Nov 2022 712th snoozingnewt 🇺🇸 857 65 1 Sep 2024 712th LostSyntax21 🇬🇧 857 65 8 Jan 2025 715th GrayJoKing 🇦🇺 857 70 20 Sep 2021 715th 0x24a537r9 857 70 10 Sep 2022 717th Jacob385 857 136 21 Feb 2025 718th ovs-code 🇩🇪 855 44 31 Dec 2023 719th stefangimmillaro 854 66 15 Jul 2023 720th JDiLenarda 🇫🇷 854 71 9 Oct 2020 721st ScottHamper 853 86 21 Nov 2021 722nd MeWhenI 🇻🇦 853 101 8 May 2022 722nd janbehrens 🇩🇪 853 101 26 Nov 2023 724th MeWhenI 🇻🇦 852 75 20 Jun 2022 724th sean-niemann 🇺🇸 852 75 19 Nov 2024 726th MeWhenI 🇻🇦 851 71 24 Oct 2024 726th sean-niemann 🇺🇸 851 71 30 Oct 2024 728th clockworknazo 851 82 13 Oct 2022 728th ovs-code 🇩🇪 851 82 7 Feb 2023 728th Lydxn 🇨🇦 851 82 28 Feb 2023 731st ovs-code 🇩🇪 850 62 2 Mar 2024 731st CaedenHarper 🇨🇦 850 62 1 Feb 2025 733rd DialFrost 🇸🇬 850 79 26 Dec 2024 734th ovs-code 🇩🇪 849 68 3 Aug 2024 735th RussellEmerine 849 80 30 Nov 2019 736th NewDefectus 🇮🇱 849 84 16 Dec 2021 737th btnlq 847 68 16 Jul 2023 738th DialFrost 🇸🇬 847 78 26 Dec 2024 739th lynn 845 59 25 May 2022 739th DialFrost 🇸🇬 845 59 26 Dec 2024 741st jared-hughes 845 71 29 Oct 2021 741st stefangimmillaro 845 71 27 Aug 2022 741st Maznek 845 71 19 Jun 2023 744th dokutan 845 102 14 Apr 2024 745th prplz 🇦🇺 844 96 30 Apr 2022 745th elgan65536 844 96 11 Nov 2023 747th Frowny 843 72 3 Jul 2020 747th lifthrasiir 🇰🇷 843 72 13 Nov 2024 749th Lydxn 🇨🇦 843 83 10 Oct 2023 749th ovs-code 🇩🇪 843 83 10 Oct 2023 Prev 676–750 of 2,894 Next