The Tower of Hanoi hole will go live in approximately 27 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 731st abc7-12 766 87 9ms 10 May 2024 731st 5quiwyrm 766 87 9ms 14 Nov 2024 731st bltnppcnt 766 87 9ms 19 Dec 2024 731st fuzzylojik-golf 🇺🇸 766 87 10ms 9 Jun 2025 731st KasperKivimaeki 🇫🇮 766 87 10ms 12 Jul 2025 731st SanderRuud 766 87 10ms 13 Jul 2025 731st dirckvdende 766 87 9ms 24 Jul 2025 758th Steffan153 🇫🇮 765 71 128ms 3 Aug 2024 759th Natanaelel 🇸🇪 765 74 39ms 12 Sep 2021 759th Andriamanitra 🇫🇮 765 74 38ms 29 Oct 2022 759th jbbarth 🇫🇷 765 74 41ms 5 Nov 2022 759th error256 765 74 44ms 19 May 2024 763rd prplz 🇦🇺 765 99 75ms 6 Jul 2020 764th JohandeRuiter 🇳🇱 763 108 2ms 26 Nov 2023 764th fuzzylojik-golf 🇺🇸 763 108 2ms 6 Jul 2025 766th fuzzylojik-golf 🇺🇸 763 126 48ms 6 Jul 2025 767th tkr-sh 🇰🇵 762 108 311ms 14 Jun 2022 768th MeWhenI 🇻🇦 761 80 664ms 30 Aug 2025 769th dokutan 761 113 6ms 15 Jan 2024 770th LordSir101 760 84 9ms 10 Sep 2025 771st fruno-bulax 760 99 146ms 16 Feb 2019 772nd bbkr 759 51 87ms 14 Nov 2018 772nd somebody1234 759 51 95ms 9 Dec 2018 772nd metakuna 759 51 112ms 12 Apr 2019 772nd BBoehm 🇩🇪 759 51 94ms 30 Dec 2020 772nd prplz 🇦🇺 759 51 114ms 9 May 2021 777th dokutan 759 102 102ms 23 Jul 2025 778th primo-ppcg 🇹🇭 759 135 1ms 3 Oct 2020 779th ngn 🇧🇬 758 33 38ms 6 Feb 2022 780th somebody1234 757 88 10ms 8 Dec 2018 780th yzhs 🇩🇪 757 88 9ms 20 Jul 2022 780th suwat513 757 88 10ms 13 Dec 2022 780th m42km 757 88 9ms 6 Nov 2023 780th dokutan 757 88 9ms 22 Jan 2024 780th namelessiw 757 88 9ms 5 Mar 2024 780th codingisgreatbutiamnot 757 88 9ms 7 Aug 2024 787th DialFrost 🇸🇬 756 79 350ms 23 May 2024 788th tatzyr 🇯🇵 755 75 40ms 5 Dec 2024 789th alemelis 755 83 524ms 1 Sep 2024 790th MeWhenI 🇻🇦 755 85 5ms 29 May 2023 790th targrik 755 85 4ms 28 Jul 2025 792nd DialFrost 🇸🇬 755 88 2,882ms 25 Dec 2024 792nd albanian-laundromat 755 88 4ms 12 Sep 2025 794th jared-hughes 755 89 2ms 5 Jul 2024 795th somebody1234 755 114 8ms 20 Nov 2018 796th KrausRaus 🇺🇸 753 63 3ms 9 Apr 2021 797th ashtraypettingzoo 🇺🇸 752 100 150ms 12 Feb 2023 798th jakobwitte 751 85 9ms 20 Mar 2018 798th janbehrens 🇩🇪 751 85 11ms 17 Aug 2021 800th sean-niemann 🇺🇸 751 105 21ms 10 days ago 801st DialFrost 🇸🇬 751 117 536ms 4 Jun 2024 802nd MeWhenI 🇻🇦 749 71 67ms 2 Nov 2023 803rd Faweks1 749 89 16ms 1 Aug 2018 803rd IshanPanpaliya 749 89 79ms 2 Apr 2022 803rd kellantech 749 89 10ms 3 Jun 2023 803rd zwxzwxzwx21 749 89 9ms 7 Feb 2024 807th retrohun 748 96 2ms 25 Aug 2024 808th Yewzir 🇧🇪 748 115 6ms 6 Feb 2024 809th jared-hughes 748 126 350ms 24 Sep 2025 810th Shanethegamer 🇺🇸 747 80 420ms 18 Jun 2021 810th Codsilla 🇨🇦 747 80 679ms 3 Nov 2023 810th alemelis 747 80 347ms 22 Sep 2024 813th emgordon154 746 44 54ms 13 Sep 2024 814th clockworknazo 746 96 2ms 30 Jan 2023 815th vonagam 745 76 43ms 8 Nov 2017 815th anter69 🇭🇺 745 76 35ms 23 Dec 2020 815th hrrs01 745 76 39ms 23 Feb 2022 815th 4hg 🇺🇸 745 76 41ms 12 Jul 2022 815th OhmNomNom 745 76 39ms 8 Oct 2022 815th aaronze 🇦🇺 745 76 40ms 21 Sep 2023 815th blaztoma 🇱🇹 745 76 36ms 11 Oct 2025 815th Lv0Sys 🇵🇱 745 76 38ms 28 hours ago 815th lacrosse 745 76 38ms 12 hours ago 824th Shanethegamer 🇺🇸 745 83 67ms 16 May 2022 824th Yewzir 🇧🇪 745 83 68ms 9 Nov 2023 First Prev 751–825 of 3,114 Next Last