The Tower of Hanoi hole will go live in approximately 37 hours. Why not try and solve it ahead of time?
Niven Numbers in Ruby 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 68th aksyristos 872 39 47ms 24 Jan 2023 68th Haksell 🇦🇶 872 39 38ms 22 Feb 2023 68th AlephSquirrel 872 39 35ms 7 Mar 2023 68th aaronze 🇦🇺 872 39 40ms 17 Sep 2023 80th segiddins 850 40 35ms 24 Aug 2018 80th TFeld00 🇩🇰 850 40 41ms 7 Jun 2019 80th flavono123 850 40 42ms 16 Jul 2019 80th snltd 850 40 34ms 14 Aug 2019 80th n1LS 850 40 38ms 23 Oct 2019 80th jstanley0 850 40 36ms 13 Dec 2020 80th Marin-Kitagawa 850 40 36ms 18 Jul 2021 80th Luj8n 850 40 35ms 12 Nov 2021 80th HallMatthew314 850 40 38ms 5 Dec 2021 80th fynnkroeger 850 40 47ms 30 Apr 2022 80th Ralac07 🇦🇺 850 40 34ms 4 Jul 2024 80th albanian-laundromat 850 40 35ms 1 Oct 2025 80th lacrosse 850 40 30ms 3 hours ago 93rd hugolgst 829 41 42ms 18 May 2019 93rd FnControlOption 829 41 48ms 21 Aug 2022 95th 0xddom 810 42 42ms 18 Dec 2019 95th jamespeilunli 810 42 34ms 1 May 2022 95th purp 810 42 35ms 9 Aug 2022 98th robymus 791 43 33ms 17 Sep 2018 99th esmg1 773 44 41ms 22 Aug 2018 99th annaproxy 773 44 43ms 27 Aug 2022 101st tadd 756 45 38ms 16 Apr 2020 101st pandapawskat 756 45 36ms 7 Oct 2021 101st a-apple1234 756 45 44ms 14 Feb 2023 104th idoschor 739 46 38ms 28 Dec 2020 105th reireias 723 47 33ms 31 Jul 2019 106th jacobsmith 680 50 44ms 19 May 2018 107th galloj 🇨🇿 618 55 36ms 18 Aug 2022 107th sreedevk 🇺🇸 618 55 35ms 4 Dec 2022 109th Mortis66666 596 57 37ms 3 Jun 2022 110th catflip 567 60 44ms 18 Oct 2023 111th kenakingkong 540 63 36ms 4 May 2021 112th MiranDaniel 🇨🇿 507 67 35ms 1 Sep 2023 113th boxjelly 500 68 36ms 12 Feb 2021 114th atayarani 486 70 37ms 18 Jan 2019 115th yokasuretsu 459 74 35ms 3 May 2018 116th graemewalters 436 78 44ms 25 Mar 2019 116th msbranicky 436 78 35ms 8 Sep 2023 118th michaelrychly 420 81 42ms 5 Jun 2019 119th matricronia 400 85 43ms 6 May 2021 120th JRaspass 🇬🇧 354 96 41ms 19 May 2018 120th retrohun 354 96 33ms 21 Dec 2018 120th ninjawarrior1337 354 96 43ms 1 Dec 2021 120th KatieLG-Transpiler 🇬🇧 354 96 35ms 24 Jun 2022 120th HumanoidCPU 354 96 37ms 8 May 2024 120th Mabeloid 🇳🇴 354 96 42ms 22 Sep 2024 120th CaedenHarper 🇨🇦 354 96 32ms 16 Aug 2025 127th zstearman3 327 104 37ms 13 Jul 2018 128th mokymok 🇺🇸 266 128 36ms 9 Nov 2021 First Prev 76–128 of 128
