The Mandelbrot hole will go live in approximately 9 hours. Why not try and solve it ahead of time?
Collatz 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 668th kkoenig 868 71 21 Dec 2023 668th JohandeRuiter 🇳🇱 868 71 14 Sep 2024 668th masinag 🇮🇹 868 71 6 Oct 2024 668th KasperKivimaeki 🇫🇮 868 71 27 Mar 2025 680th AlephSquirrel 867 80 20 Apr 2023 680th ashtraypettingzoo 🇺🇸 867 80 1 Apr 2024 682nd nwellnhof 🇩🇪 866 53 4 May 2022 682nd GrayJoKing 🇦🇺 866 53 6 May 2022 684th DialFrost 🇸🇬 866 86 24 Oct 2024 684th stefangimmillaro 866 86 14 Jan 2025 686th dieggsy 866 97 8 Oct 2024 686th edsrzf 🇳🇿 866 97 8 Dec 2024 688th lukehewittvandy 866 135 18 Jul 2022 688th OriEy 866 135 27 Apr 2023 688th Maximizer02 866 135 8 Jun 2024 688th 0dyse 866 135 23 Apr 2025 692nd jacobly0 🇺🇸 866 153 26 Sep 2023 693rd primo-ppcg 🇹🇭 866 208 4 days ago 694th Andriamanitra 🇫🇮 864 54 21 Jul 2022 694th jared-hughes 864 54 12 Sep 2022 694th OhmNomNom 864 54 7 Oct 2022 694th olleicua 🇺🇸 864 54 21 Jan 2024 694th LostSyntax21 🇬🇧 864 54 12 Mar 2025 694th AbrahamJLR 864 54 26 days ago 700th Shanethegamer 🇺🇸 864 70 12 Dec 2022 700th Alessandro-Balconi 🇮🇹 864 70 26 Dec 2022 702nd DialFrost 🇸🇬 862 64 10 Jul 2024 703rd Grrisly 862 114 25 Mar 2024 704th mtirado1 861 75 13 Aug 2022 705th Steffan153 🇫🇮 861 82 23 Feb 2023 706th MeWhenI 🇻🇦 861 85 27 Jun 2022 706th Shanethegamer 🇺🇸 861 85 15 May 2023 708th tomh1012 861 90 5 May 2022 708th deadp4nda 🇩🇪 861 90 26 Apr 2024 708th 123mjb 861 90 6 days ago 711th TylerBloom 861 96 22 Mar 2024 712th shellbertt 🇨🇦 861 98 9 May 2022 712th iakolzin 861 98 26 May 2022 712th Betuaredead 861 98 5 Jan 2023 712th oceko 861 98 19 Feb 2024 712th dokutan 861 98 17 Mar 2024 712th cuzdav 861 98 4 May 2025 718th MeWhenI 🇻🇦 860 154 10 Oct 2023 719th GrayJoKing 🇦🇺 859 56 15 Jan 2024 719th AlephSquirrel 859 56 21 Jan 2024 721st Setvizan 859 62 12 Jan 2023 721st GreenBeansAgainstVeganism 859 62 13 Jan 2023 721st arctouch-cristiannevianna 859 62 3 Apr 2023 721st Corxldyphik 859 62 11 Apr 2023 721st Blockyheadman 859 62 1 Nov 2023 721st ollyspooner 859 62 22 Nov 2023 721st itserasmus 859 62 25 Jan 2024 721st Jacob385 859 62 13 Mar 2024 721st junkondo-jp 859 62 30 Jun 2024 721st ShiraJoseph 🇺🇸 859 62 1 Mar 2025 731st yzhs 🇩🇪 859 65 16 Jun 2022 731st rollershutter 859 65 9 Sep 2022 731st bac0id 859 65 26 Sep 2023 731st mossiegoat 859 65 21 days ago 735th ovs-code 🇩🇪 859 133 8 Jul 2024 736th crizin 🇰🇷 859 136 9 Sep 2023 736th TheZwierzLF 🇵🇱 859 136 27 days ago 738th ulucs 858 35 8 May 2022 738th bstrat 858 35 6 Jun 2024 738th wh3n3v3r 🇨🇿 858 35 18 Nov 2024 741st Andriamanitra 🇫🇮 858 67 26 Apr 2023 742nd steffan-polygolf 858 73 23 Feb 2023 742nd MWI-polygolf 858 73 6 Dec 2023 742nd HumanoidCPU 858 73 7 May 2024 745th Steffan153 🇫🇮 858 78 4 Feb 2023 746th 5quiwyrm 857 52 4 Sep 2022 746th MeWhenI 🇻🇦 857 52 28 Jan 2023 746th Feniske 🇫🇷 857 52 7 Nov 2023 746th dcgjb 857 52 29 Jan 2024 746th JPRuskin 🇬🇧 857 52 7 Apr 2025 Prev 676–750 of 3,139 Next
