The Tower of Hanoi hole will go live in approximately 20 mins. 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 601st pardouin 🇫🇷 892 114 256ms 24 Aug 2024 601st DialFrost 🇸🇬 892 114 248ms 26 Dec 2024 601st snoozingnewt 🇺🇸 892 114 236ms 46 hours ago 604th kg583 🇺🇸 891 95 43ms 26 Jul 2025 605th MeWhenI 🇻🇦 890 56 877ms 13 Nov 2022 606th stefangimmillaro 890 71 4ms 9 Jan 2022 606th emplv 🇱🇻 890 71 4ms 21 Jul 2022 608th GrayJoKing 🇦🇺 890 72 45ms 14 Jun 2022 608th primo-ppcg 🇹🇭 890 72 39ms 21 Jun 2022 608th 386asm 🇺🇸 890 72 38ms 4 May 2023 611th GrayJoKing 🇦🇺 889 65 3ms 26 Jul 2023 612th Shanethegamer 🇺🇸 888 147 10ms 1 Aug 2023 612th MeWhenI 🇻🇦 888 147 10ms 1 Aug 2023 612th Lydxn 🇨🇦 888 147 10ms 1 Aug 2023 612th JayXon 🇺🇸 888 147 10ms 2 Aug 2023 612th Steffan153 🇫🇮 888 147 10ms 2 Aug 2023 612th janbehrens 🇩🇪 888 147 10ms 2 Aug 2023 612th GrayJoKing 🇦🇺 888 147 10ms 11 Aug 2023 612th BREMAUCY 🇫🇷 888 147 10ms 7 Sep 2023 612th dokutan 888 147 10ms 26 Oct 2023 612th Yewzir 🇧🇪 888 147 10ms 12 Mar 2024 612th HumanoidCPU 888 147 10ms 13 May 2024 612th pardouin 🇫🇷 888 147 10ms 20 Aug 2024 612th KatieLG 🇬🇧 888 147 10ms 26 Sep 2024 612th emgordon154 888 147 10ms 4 Dec 2024 612th CaedenHarper 🇨🇦 888 147 10ms 24 Jan 2025 612th rucin93 🇵🇱 888 147 10ms 23 Apr 2025 612th albanian-laundromat 888 147 10ms 20 Jul 2025 612th Babafaba 888 147 10ms 24 Oct 2025 612th GolfingSuccess 🇬🇷 888 147 10ms 22 days ago 631st Shanethegamer 🇺🇸 887 78 95ms 23 days ago 631st emgordon154 887 78 98ms 3 days ago 631st GolfingSuccess 🇬🇷 887 78 88ms 2 days ago 631st edsrzf 🇳🇿 887 78 89ms 2 days ago 631st DialFrost 🇸🇬 887 78 90ms 2 days ago 631st snoozingnewt 🇺🇸 887 78 89ms 19 hours ago 637th ovs-code 🇩🇪 887 87 495ms 29 Jul 2024 638th MeWhenI 🇻🇦 886 76 45ms 16 May 2023 639th MeWhenI 🇻🇦 885 52 69ms 2 Nov 2023 639th Yewzir 🇧🇪 885 52 81ms 7 Mar 2024 639th edsrzf 🇳🇿 885 52 74ms 17 Jan 2025 639th fuzzylojik-golf 🇺🇸 885 52 74ms 17 Sep 2025 643rd Shanethegamer 🇺🇸 885 83 309ms 12 May 2023 643rd janbehrens 🇩🇪 885 83 314ms 26 Nov 2023 643rd Yewzir 🇧🇪 885 83 334ms 11 Feb 2024 643rd snoozingnewt 🇺🇸 885 83 333ms 46 hours ago 647th lynn 885 93 29ms 12 Jul 2023 648th KasperKivimaeki 🇫🇮 885 115 261ms 2 Oct 2025 649th jared-hughes 884 76 1ms 6 Mar 2022 649th Steffan153 🇫🇮 884 76 3ms 25 Feb 2023 651st Steffan153 🇫🇮 884 78 1ms 29 Oct 2023 652nd MeWhenI 🇻🇦 883 75 2ms 12 Sep 2022 652nd sean-niemann 🇺🇸 883 75 3ms 8 Oct 2024 654th marcin7Cd 883 77 172ms 11 Mar 2020 654th fuzzylojik-golf 🇺🇸 883 77 153ms 15 Sep 2025 656th pardouin 🇫🇷 882 63 659ms 29 Aug 2025 657th prplz 🇦🇺 882 68 10ms 12 Oct 2021 657th NewDefectus 🇮🇱 882 68 9ms 16 Dec 2021 659th emplv 🇱🇻 882 93 26ms 29 Jun 2022 660th marcin7Cd 882 148 10ms 12 Oct 2020 660th Attero 🇸🇪 882 148 10ms 12 Oct 2020 660th sisyphus-ppcg 🇦🇺 882 148 10ms 30 May 2021 660th lynn 882 148 10ms 1 Jun 2021 660th SirBogman 🇺🇸 882 148 10ms 28 Nov 2021 660th ovs-code 🇩🇪 882 148 9ms 22 Apr 2022 660th scpchicken 🇵🇼 882 148 10ms 4 Feb 2023 667th Attero 🇸🇪 881 81 2ms 4 May 2020 667th c0d3-4-F00d 🇩🇪 881 81 2ms 5 Jan 2022 667th snoozingnewt 🇺🇸 881 81 2ms 13 Sep 2025 667th AZTECCO 881 81 2ms 16 Sep 2025 667th Yax42 🇫🇷 881 81 2ms 14 Oct 2025 672nd edsrzf 🇳🇿 881 96 40ms 30 Dec 2024 673rd m-tkach 🇺🇦 881 98 54ms 9 Mar 2023 673rd annaproxy 881 98 52ms 22 Oct 2023 673rd Yewzir 🇧🇪 881 98 49ms 30 Dec 2023 First Prev 601–675 of 3,126 Next Last