The Tower of Hanoi hole will go live in approximately 39 hours. Why not try and solve it ahead of time?
Happy Numbers in all languages in bytes. Achievements Cheevos Holes Languages Medals Miscellaneous 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 Minesweeper 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 Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir Erlang 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 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 Erlang 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 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 Minesweeper 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 Binary Lambda Calculus Calendar Connect Four Continued Fractions Crossword CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Tower of Hanoi Turtle Tutorial # Golfer Points Bytes Time Submitted 526th MeWhenI 🇻🇦 896 93 1ms 18 May 2022 527th ETHproductions 🇺🇸 895 67 10ms 14 Apr 2018 528th MeWhenI 🇻🇦 894 75 4ms 22 Mar 2024 529th marcin7Cd 894 85 7ms 15 Feb 2021 529th primo-ppcg 🇹🇭 894 85 7ms 1 Mar 2021 529th CLOStrophobic 🇮🇹 894 85 6ms 14 Feb 2025 532nd lifthrasiir 🇰🇷 893 28 3ms 29 Nov 2024 533rd Constructor7 893 68 11ms 24 Feb 2018 533rd GolfingSuccess 🇬🇷 893 68 13ms 26 Mar 2018 533rd kmaork 🇮🇱 893 68 14ms 18 Apr 2018 533rd edre 893 68 9ms 30 Apr 2018 533rd j55d 893 68 10ms 19 Sep 2018 533rd daedals 893 68 9ms 16 Apr 2019 533rd villfa 893 68 10ms 20 May 2019 533rd TFeld00 🇩🇰 893 68 9ms 31 May 2019 533rd marcin7Cd 893 68 9ms 27 Aug 2019 533rd xorraxrax 893 68 11ms 19 Oct 2019 533rd jiaminglimjm 🇲🇾 893 68 10ms 12 Dec 2019 533rd SirBogman 🇺🇸 893 68 10ms 4 Jan 2020 533rd thisishowmymindworks 🇳🇴 893 68 9ms 22 Jul 2020 533rd ToriTheChicken 893 68 10ms 23 Jul 2020 533rd ydevor 🇮🇱 893 68 10ms 26 Nov 2020 533rd anter69 🇭🇺 893 68 9ms 14 Jan 2021 533rd HETHAT 🇩🇿 893 68 10ms 31 Jan 2021 533rd vezzick 893 68 9ms 7 Mar 2021 533rd Indivicivet 893 68 10ms 26 Mar 2021 533rd emplv 🇱🇻 893 68 10ms 31 Aug 2021 533rd MichaelMBradley 🇨🇦 893 68 9ms 11 Jun 2022 533rd janbehrens 🇩🇪 893 68 10ms 4 Jul 2022 533rd betaveros 893 68 9ms 9 Aug 2022 533rd 5quiwyrm 893 68 10ms 20 Aug 2022 533rd PowerR0 893 68 14ms 25 Aug 2022 533rd ItsMeNoobieboy 893 68 11ms 21 Dec 2022 533rd scpchicken 🇵🇼 893 68 10ms 28 Jan 2023 533rd CheeseCake628 🇳🇴 893 68 15ms 16 Feb 2023 533rd Just4FunCoder 893 68 13ms 22 Mar 2023 533rd fourth-bit 893 68 9ms 11 Jul 2023 533rd RYNO8 893 68 41ms 22 Aug 2023 533rd Yewzir 🇧🇪 893 68 9ms 6 Oct 2023 533rd keelimeguy 🇺🇸 893 68 21ms 19 Oct 2023 533rd 1231234md5 🇨🇳 893 68 13ms 13 Dec 2023 533rd stackofbears 893 68 9ms 27 Dec 2023 533rd CutSandstone 893 68 9ms 5 Jul 2024 533rd Bulmenisaurus 893 68 10ms 17 Jul 2024 533rd CaedenHarper 🇨🇦 893 68 10ms 6 Aug 2024 533rd codingisgreatbutiamnot 893 68 17ms 12 Aug 2024 533rd Troon 893 68 10ms 11 Feb 2025 533rd plcc0 893 68 12ms 20 Feb 2025 533rd albanian-laundromat 893 68 9ms 30 Jun 2025 533rd KasperKivimaeki 🇫🇮 893 68 9ms 2 Jul 2025 533rd SanderRuud 893 68 10ms 13 Jul 2025 533rd qpwoeirut 893 68 9ms 1 Oct 2025 533rd countlpaul-dotcom 893 68 9ms 19 Oct 2025 533rd sunleonid 893 68 9ms 6 days ago 580th primo-ppcg 🇹🇭 893 91 121ms 14 Jan 2022 581st stackofbears 892 33 35ms 14 Mar 2025 581st 2bular 892 33 30ms 22 days ago 583rd MeWhenI 🇻🇦 892 66 66ms 13 Dec 2022 584th DialFrost 🇸🇬 892 68 2,943ms 25 Dec 2024 584th GolfingSuccess 🇬🇷 892 68 4ms 11 Sep 2025 586th prplz 🇦🇺 892 80 2ms 20 Oct 2020 586th primo-ppcg 🇹🇭 892 80 2ms 21 Oct 2020 586th emgordon154 892 80 2ms 22 Dec 2021 586th GrayJoKing 🇦🇺 892 80 2ms 13 Mar 2022 586th jared-hughes 892 80 2ms 30 Mar 2022 586th janbehrens 🇩🇪 892 80 2ms 26 Nov 2023 586th Herbert00709 🇵🇱 892 80 2ms 8 Jun 2024 586th roupiq 🇵🇱 892 80 2ms 9 Jun 2024 594th MeWhenI 🇻🇦 892 92 30ms 13 Jul 2021 595th pardouin 🇫🇷 892 114 256ms 24 Aug 2024 595th DialFrost 🇸🇬 892 114 248ms 26 Dec 2024 595th snoozingnewt 🇺🇸 892 114 236ms 7 hours ago 598th kg583 🇺🇸 891 95 43ms 26 Jul 2025 599th MeWhenI 🇻🇦 890 56 877ms 13 Nov 2022 600th stefangimmillaro 890 71 4ms 9 Jan 2022 First Prev 526–600 of 3,123 Next Last
