The Tower of Hanoi hole will go live in approximately 2 days. Why not try and solve it ahead of time?
Emirp Numbers in Python 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 373rd andre-lameirinhas 🇵🇹 581 117 49ms 1 Aug 2020 373rd Andre3582 581 117 27ms 4 Nov 2020 373rd Miles-1000 🇬🇧 581 117 35ms 28 Feb 2021 373rd ludwig-n 581 117 25ms 6 Apr 2021 373rd olavaga 581 117 12ms 13 Aug 2021 373rd Kasci 581 117 57ms 28 Dec 2021 373rd felixcroc 581 117 14ms 25 Apr 2022 373rd georgehulme 581 117 31ms 12 Oct 2022 373rd galloj 🇨🇿 581 117 28ms 6 Nov 2022 373rd aalec 581 117 12ms 24 Apr 2024 373rd HumanoidCPU 581 117 76ms 27 May 2024 373rd CutSandstone 581 117 11ms 4 Jul 2024 373rd JunkIce 581 117 20ms 23 Oct 2024 373rd WillowWispy 581 117 38ms 25 May 2025 390th toombs-caeman 576 118 12ms 8 Mar 2020 390th TechnoJo4 576 118 12ms 15 Sep 2021 390th BrenSchaap 576 118 12ms 21 Oct 2021 390th markus-rekdal 576 118 13ms 10 May 2022 390th celiendonze 🇨🇭 576 118 46ms 24 Apr 2023 390th midnattssol 🇸🇪 576 118 14ms 27 Jul 2023 390th cykim8811 576 118 56ms 11 Jul 2024 390th sjrct 576 118 48ms 5 Aug 2024 398th thibthibaut 571 119 10ms 26 Feb 2018 398th Mojken 571 119 25ms 26 Aug 2018 398th PrettyWood 571 119 29ms 8 Dec 2018 398th tburette 571 119 9ms 26 Dec 2018 398th DarkTemplar5 571 119 83ms 19 Feb 2020 398th geofft 571 119 20ms 10 Dec 2020 398th jacksonhenry3 571 119 38ms 23 Dec 2021 398th ellieoverwood 571 119 14ms 28 Feb 2022 398th Ailko 🇧🇪 571 119 27ms 5 May 2022 398th rowboat1 571 119 34ms 22 Jun 2022 398th 4ndyJ 🇬🇧 571 119 27ms 6 Mar 2023 398th Fracture17 571 119 14ms 8 Apr 2023 410th AlanLynn 567 120 30ms 28 Feb 2018 410th adesanjo 567 120 12ms 8 Jun 2019 410th AforAmpere 567 120 14ms 6 Jun 2020 410th argusdusty 🇺🇸 567 120 14ms 26 Dec 2020 410th estomagordo 🇳🇱 567 120 10ms 10 Dec 2021 410th shellbertt 🇨🇦 567 120 14ms 28 Apr 2022 410th jhpaques 🇫🇷 567 120 28ms 27 Jul 2022 410th croc54 567 120 13ms 30 Dec 2024 418th haraldsperre 562 121 29ms 13 Feb 2018 418th SimonPeatman 562 121 45ms 3 Feb 2019 418th doug-h 562 121 53ms 29 May 2020 418th luftj 562 121 27ms 8 Jul 2020 418th scottwday 🇨🇦 562 121 15ms 15 Dec 2021 418th OppositeShark 562 121 212ms 7 Apr 2022 418th mdnestor 562 121 29ms 23 Dec 2022 418th jsthope 562 121 19ms 9 Mar 2023 418th cuboids 562 121 12ms 10 Jul 2024 427th ThomasTram 557 122 54ms 28 Feb 2018 427th Threadzless 557 122 36ms 29 Oct 2018 427th ovravna 557 122 9ms 16 Dec 2018 427th TrAyZeN 557 122 14ms 23 Aug 2019 427th enbyte 557 122 12ms 27 May 2021 427th cbondurant 557 122 11ms 30 Sep 2021 427th karhuthebear 557 122 12ms 9 May 2022 427th Jaydosu 557 122 19ms 8 Jun 2022 427th TralfamadorianComedian 557 122 34ms 31 Dec 2024 427th ToE42 557 122 27ms 28 May 2025 427th clayboll99 557 122 48ms 14 Jul 2025 427th katss2 557 122 18ms 20 Aug 2025 439th caerbannogwhite 553 123 32ms 13 Apr 2018 439th CRHillman 553 123 14ms 8 Aug 2018 439th fepe55 553 123 13ms 8 Oct 2018 439th rzhade3 553 123 28ms 1 Jul 2021 439th mhenion8293 🇺🇸 553 123 13ms 19 Jan 2022 439th j-Ewan 553 123 14ms 22 Mar 2022 439th Edjyzod 553 123 12ms 7 Mar 2023 439th rsgray 553 123 22ms 19 Feb 2024 439th Anonymousellama21 553 123 9ms 14 Mar 2024 439th Andrey135296 553 123 29ms 20 Sep 2024 439th Schreipfelerer 553 123 13ms 26 Sep 2024 439th robin-scragg 553 123 9ms 25 Jul 2025 First Prev 376–450 of 802 Next Last
