The Tower of Hanoi hole will go live in approximately 7 hours. Why not try and solve it ahead of time?
Emirp Numbers in all languages in chars. 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 Chars Time Submitted 447th pardouin 🇫🇷 832 79 2ms 5 Oct 2024 447th KasperKivimaeki 🇫🇮 832 79 2ms 4 Jan 2025 453rd janlelis 831 48 35ms 25 Jan 2021 453rd Steffan153 🇫🇮 831 48 32ms 18 Feb 2023 453rd pardouin 🇫🇷 831 48 53ms 19 Aug 2025 453rd radarek 🇵🇱 831 48 35ms 11 Sep 2025 453rd sean-niemann 🇺🇸 831 48 43ms 12 Oct 2025 458th hirosuzuki 831 65 9ms 24 Feb 2019 458th trist224 🇫🇷 831 65 9ms 15 Nov 2022 460th sisyphus-ppcg 🇦🇺 830 116 7ms 14 Mar 2023 461st rucin93 🇵🇱 827 68 10ms 2 Oct 2021 461st sean-niemann 🇺🇸 827 68 10ms 21 Feb 2023 461st Argeento 🇵🇱 827 68 12ms 25 Aug 2023 464th edsrzf 🇳🇿 827 82 342ms 24 Sep 2025 464th ScottHamper 827 82 346ms 78 mins ago 466th doge1338 827 113 262ms 14 Dec 2020 467th primo-ppcg 🇹🇭 825 69 8ms 4 Jun 2018 468th DialFrost 🇸🇬 824 173 425ms 15 Aug 2025 469th prplz 🇦🇺 822 80 1ms 3 Nov 2020 469th dokutan 822 80 2ms 29 Apr 2024 469th Mukundan314 822 80 2ms 6 days ago 472nd neel11235813 821 61 426ms 15 Jan 2024 472nd DialFrost 🇸🇬 821 61 539ms 15 Jan 2024 472nd CatsAreFluffy 821 61 429ms 15 Jan 2024 472nd dokutan 821 61 448ms 22 Jan 2024 472nd namelessiw 821 61 473ms 5 Mar 2024 472nd duckyluuk 🇳🇱 821 61 433ms 29 Aug 2024 472nd lifthrasiir 🇰🇷 821 61 451ms 2 Dec 2024 479th GrayJoKing 🇦🇺 821 88 38ms 18 Jun 2022 480th metakuna 820 45 112ms 12 Apr 2019 481st pardouin 🇫🇷 820 52 894ms 19 Aug 2025 482nd pandapawskat 819 41 2ms 17 Sep 2021 483rd jacklynnepenick 819 66 60ms 22 Aug 2021 483rd commandblockguy 🇺🇸 819 66 9ms 22 Nov 2023 485th AshyIsMe 🇦🇺 816 35 35ms 4 Aug 2022 486th ovs-code 🇩🇪 816 36 61ms 2 Feb 2024 487th DaDerpDuck 816 79 3ms 22 Jan 2021 488th Brassawiking 815 69 9ms 21 Jul 2018 488th Unremarkable 815 69 9ms 28 Sep 2018 488th j55d 815 69 9ms 29 Sep 2018 488th thisishowmymindworks 🇳🇴 815 69 8ms 24 Jul 2020 488th ToriTheChicken 815 69 8ms 26 Jul 2020 488th Irratix 🇳🇱 815 69 9ms 27 Jul 2020 488th cywong-amino 🇭🇰 815 69 9ms 30 Sep 2020 488th ArmaanAS 815 69 8ms 21 Mar 2021 488th shawphy 815 69 8ms 14 Oct 2021 488th MeWhenI 🇻🇦 815 69 8ms 21 Jan 2022 488th tayloia 🇬🇧 815 69 9ms 24 May 2023 488th Yewzir 🇧🇪 815 69 9ms 12 Feb 2024 488th fuzzylojik-golf 🇺🇸 815 69 8ms 6 Jul 2025 501st nwellnhof 🇩🇪 814 49 35ms 30 Dec 2021 502nd sisyphus-ppcg 🇦🇺 813 68 69ms 13 Dec 2022 503rd KasperKivimaeki 🇫🇮 813 115 246ms 9 Oct 2025 504th Yax42 🇫🇷 812 81 2ms 9 Oct 2025 505th snoozingnewt 🇺🇸 808 62 348ms 46 hours ago 506th tburette 807 67 9ms 26 Dec 2018 507th lifthrasiir 🇰🇷 806 31 3ms 29 Nov 2024 507th GrayJoKing 🇦🇺 806 31 2ms 26 Jun 2025 509th dokutan 806 87 6ms 15 Jan 2024 510th Shanethegamer 🇺🇸 805 177 671ms 13 Jan 2025 510th GolfingSuccess 🇬🇷 805 177 455ms 13 Jan 2025 510th KatieLG 🇬🇧 805 177 524ms 13 Jan 2025 510th HumanoidCPU 805 177 531ms 13 Jan 2025 510th dokutan 805 177 450ms 13 Jan 2025 510th voytxt 🇨🇿 805 177 481ms 19 Jan 2025 510th ovs-code 🇩🇪 805 177 489ms 24 Jan 2025 510th CaedenHarper 🇨🇦 805 177 514ms 25 Jan 2025 510th MeWhenI 🇻🇦 805 177 467ms 10 Feb 2025 510th pardouin 🇫🇷 805 177 508ms 25 Feb 2025 510th albanian-laundromat 805 177 503ms 13 Sep 2025 521st kevlened 804 70 9ms 22 Oct 2018 521st vladyslavprosolupov 804 70 9ms 28 May 2019 521st TRexOnGit 804 70 9ms 18 Jul 2025 524th yokasuretsu 802 46 92ms 22 Jun 2018 524th retrohun 802 46 118ms 26 Apr 2019 First Prev 451–525 of 3,098 Next Last
