The Tower of Hanoi hole will go live in approximately 8 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 818th tri1212 🇻🇳 684 79 14ms 17 Jul 2022 818th P-Quentin 🇫🇷 684 79 13ms 3 Aug 2022 818th elgan65536 684 79 14ms 7 Apr 2024 818th AlephSquirrel 684 79 10ms 19 Jul 2024 818th Keegan-T 🇨🇦 684 79 16ms 23 Apr 2025 818th evan18c 684 79 16ms 23 Apr 2025 832nd primo-ppcg 🇹🇭 684 109 1ms 3 Oct 2020 832nd MeWhenI 🇻🇦 684 109 2ms 20 Apr 2022 834th jjatria 683 54 114ms 29 Jul 2022 835th iznax 682 82 318ms 21 Nov 2021 835th tkr-sh 🇰🇵 682 82 311ms 14 Jun 2022 837th alomiF 681 97 163ms 24 Aug 2024 838th MeWhenI 🇻🇦 679 95 3ms 20 Feb 2023 839th doge1338 678 83 8ms 20 Mar 2021 839th GrayJoKing 🇦🇺 678 83 319ms 30 Mar 2021 839th two-bad 🇬🇧 678 83 9ms 15 Feb 2024 842nd primo-ppcg 🇹🇭 678 102 27ms 13 Jul 2021 842nd JayXon 🇺🇸 678 102 28ms 13 Sep 2023 844th sisyphus-ppcg 🇦🇺 677 63 844ms 23 Mar 2022 844th dokutan 677 63 934ms 14 Apr 2024 846th ovs-code 🇩🇪 677 95 425ms 16 Jun 2024 847th StanislavNikolov 676 80 10ms 26 Nov 2017 847th LlamaLad7 🇬🇧 676 80 16ms 17 Jan 2021 847th voidmax 676 80 9ms 1 Dec 2021 847th ejini6969 676 80 9ms 1 Apr 2023 847th SB-945 676 80 26ms 13 Feb 2024 852nd boxjelly 674 98 269ms 5 Jan 2021 852nd tobeannouncd 674 98 170ms 9 Jan 2024 854th nwellnhof 🇩🇪 672 101 334ms 25 Sep 2025 855th cure-honey 🇯🇵 672 121 47ms 6 Jul 2021 856th molecules 671 55 88ms 27 Dec 2017 857th MeWhenI 🇻🇦 671 98 4ms 29 Nov 2022 858th ian-odonnell 670 84 9ms 5 Mar 2018 858th LordSir101 670 84 9ms 10 Sep 2025 860th MeWhenI 🇻🇦 670 85 5ms 29 May 2023 860th targrik 670 85 4ms 28 Jul 2025 862nd f-tucker 669 144 7ms 20 Feb 2024 863rd MeWhenI 🇻🇦 668 75 422ms 24 May 2024 864th Yewzir 🇧🇪 668 118 3ms 11 days ago 865th dokutan 668 140 266ms 1 Apr 2024 866th emgordon154 667 44 54ms 13 Sep 2024 867th Espiobest 667 81 22ms 26 Feb 2021 867th gilufin 667 81 15ms 23 May 2021 867th Waffle3z 667 81 14ms 7 Sep 2021 867th quimey 667 81 15ms 21 Jun 2023 871st fruno-bulax 667 99 146ms 16 Feb 2019 872nd ovs-code 🇩🇪 666 67 220ms 12 Mar 2024 873rd emgordon154 666 79 127ms 4 Aug 2024 874th olivermrose 🇺🇸 665 60 39ms 31 Oct 2021 875th pardouin 🇫🇷 665 62 650ms 29 Aug 2025 876th dokutan 663 97 458ms 23 Jul 2025 877th MateuszPietrzak 🇵🇱 663 107 49ms 9 Jan 2024 877th HumanoidCPU 663 107 51ms 5 May 2024 877th ovs-code 🇩🇪 663 107 51ms 3 Jun 2024 880th jakobwitte 662 85 9ms 20 Mar 2018 880th janbehrens 🇩🇪 662 85 11ms 17 Aug 2021 882nd ashtraypettingzoo 🇺🇸 661 100 150ms 12 Feb 2023 883rd 5quiwyrm 659 53 182ms 2 Sep 2025 884th AlephSquirrel 659 76 565ms 19 Jul 2024 885th jmerle 🇳🇱 659 82 18ms 11 Jul 2023 885th Powerroff 659 82 26ms 10 Nov 2024 885th RaBa21 🇭🇺 659 82 12ms 19 Jul 2025 888th sisyphus-ppcg 🇦🇺 659 125 2ms 15 May 2022 888th GolfingSuccess 🇬🇷 659 125 1ms 16 May 2022 888th MeWhenI 🇻🇦 659 125 1ms 18 May 2022 888th ovs-code 🇩🇪 659 125 1ms 20 May 2022 888th inventshah 659 125 2ms 22 May 2022 888th lynn 659 125 1ms 27 May 2022 888th nwellnhof 🇩🇪 659 125 2ms 7 Jul 2022 888th galloj 🇨🇿 659 125 2ms 29 Aug 2022 888th Steffan153 🇫🇮 659 125 2ms 28 Jan 2023 888th sean-niemann 🇺🇸 659 125 2ms 20 May 2023 888th JayXon 🇺🇸 659 125 2ms 25 May 2023 888th Lydxn 🇨🇦 659 125 1ms 24 Jun 2023 888th dokutan 659 125 2ms 2 Oct 2023 First Prev 826–900 of 3,098 Next Last
