The Tower of Hanoi hole will go live in approximately 42 hours. Why not try and solve it ahead of time?
Emirp 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 825th drbalan 745 101 175ms 18 Jul 2020 827th JRaspass 🇬🇧 744 52 86ms 26 Dec 2017 827th IAGOAG 744 52 121ms 25 Jun 2018 827th xohmz 744 52 90ms 4 Nov 2018 827th elisherer 🇮🇱 744 52 109ms 13 Apr 2019 827th o0lit3 🇺🇸 744 52 113ms 10 Jul 2020 827th rucin93 🇵🇱 744 52 117ms 7 Sep 2020 827th olivermrose 🇺🇸 744 52 113ms 20 Sep 2021 827th krcs 🇵🇱 744 52 122ms 21 Apr 2022 827th MeWhenI 🇻🇦 744 52 112ms 4 Aug 2022 827th trist224 🇫🇷 744 52 120ms 28 Nov 2022 827th neel11235813 744 52 107ms 3 Feb 2023 838th Irratix 🇳🇱 743 111 330ms 15 Mar 2021 839th ovs-code 🇩🇪 742 80 1,003ms 25 Jan 2024 840th labster 741 64 73ms 23 Feb 2018 840th nwellnhof 🇩🇪 741 64 3ms 14 Jul 2022 842nd neihousaigaai 740 90 11ms 31 Oct 2022 843rd btjones0 740 97 280ms 28 Dec 2020 844th Shanethegamer 🇺🇸 739 72 81ms 27 Dec 2024 844th fuzzylojik-golf 🇺🇸 739 72 70ms 17 Sep 2025 846th Irratix 🇳🇱 739 130 352ms 3 Jan 2022 847th fuzzylojik-golf 🇺🇸 737 85 435ms 6 Jul 2025 848th inventshah 737 100 2ms 9 Sep 2022 848th Yewzir 🇧🇪 737 100 3ms 22 Dec 2023 848th albanian-laundromat 737 100 5ms 24 Jun 2025 851st treeowl 737 102 141ms 27 Feb 2019 851st RussellEmerine 737 102 158ms 30 Nov 2019 853rd lynn 736 97 14ms 10 Nov 2021 854th gnuvince 735 34 2ms 28 Jun 2025 855th hugolgst 735 77 40ms 15 Jun 2019 855th reireias 735 77 39ms 30 Jul 2019 855th Haksell 🇦🇶 735 77 40ms 22 Feb 2023 855th LostSyntax21 🇬🇧 735 77 39ms 25 Aug 2024 859th ian-odonnell 734 87 9ms 5 Mar 2018 860th retrohun 732 91 27ms 29 Oct 2022 860th trist224 🇫🇷 732 91 9ms 15 Nov 2022 860th alemelis 732 91 10ms 1 Sep 2024 863rd typeswitch-dev 🇵🇹 732 93 3ms 27 Aug 2023 864th janbehrens 🇩🇪 730 88 6ms 15 Jun 2021 865th dokutan 730 101 3ms 27 Mar 2024 866th Johannesd3 730 103 182ms 8 Sep 2019 866th strout 730 103 183ms 15 Aug 2022 868th msbranicky 729 214 10ms 29 Aug 2023 869th greghull 726 78 41ms 8 Nov 2017 869th tadd 726 78 36ms 16 Apr 2020 869th hiddicop 🇸🇪 726 78 40ms 31 Jan 2021 869th schachmattmatt 726 78 36ms 26 Sep 2021 873rd CaedenHarper 🇨🇦 725 84 748ms 23 Sep 2025 874th Maznek 725 88 9ms 22 Jun 2023 875th PFischbeck 724 92 27ms 30 Jan 2018 875th kevinmchung 724 92 9ms 24 Feb 2018 875th ANDREYDEN 724 92 81ms 12 Jan 2019 875th jcl5m1 724 92 9ms 27 Jul 2019 875th ahmetdemirag 🇨🇾 724 92 10ms 23 Jun 2024 880th achimkrause 723 104 262ms 11 Jul 2018 881st MeWhenI 🇻🇦 723 109 2ms 10 Oct 2023 882nd janbehrens 🇩🇪 723 114 2ms 17 Aug 2021 883rd janbehrens 🇩🇪 723 133 57ms 8 Jan 2022 884th detrumi 🇳🇱 722 130 124ms 26 Apr 2023 885th dokutan 721 105 81ms 23 Jul 2025 886th dloscutoff 720 83 272ms 27 Nov 2018 886th MeWhenI 🇻🇦 720 83 334ms 15 Feb 2023 888th CatsAreFluffy 720 87 429ms 15 Jan 2024 888th dokutan 720 87 448ms 22 Jan 2024 888th namelessiw 720 87 473ms 5 Mar 2024 891st markobr 719 66 92ms 29 Oct 2017 892nd jmerle 🇳🇱 719 134 9ms 4 Jul 2023 893rd RustemB 🇷🇺 717 54 87ms 3 Jan 2021 894th Mir0ff944 717 79 42ms 17 Oct 2019 894th fuzzylojik-golf 🇺🇸 717 79 40ms 6 Jul 2025 896th rucin93 🇵🇱 717 110 12ms 10 days ago 897th filharmonista 717 115 298ms 13 Mar 2020 898th Yewzir 🇧🇪 716 85 658ms 13 days ago 899th msrawson 716 93 9ms 31 Aug 2018 899th ly0va 716 93 10ms 12 Jan 2019 First Prev 826–900 of 3,112 Next Last
