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 374th ovs-code 🇩🇪 869 46 72ms 13 Sep 2023 374th Steffan153 🇫🇮 869 46 71ms 16 Sep 2023 374th primo-ppcg 🇹🇭 869 46 72ms 16 Sep 2023 374th MeWhenI 🇻🇦 869 46 67ms 2 Nov 2023 374th Yewzir 🇧🇪 869 46 73ms 7 Mar 2024 374th pardouin 🇫🇷 869 46 70ms 26 Oct 2024 374th Shanethegamer 🇺🇸 869 46 81ms 27 Dec 2024 374th edsrzf 🇳🇿 869 46 72ms 17 Jan 2025 374th sean-niemann 🇺🇸 869 46 83ms 7 Apr 2025 374th fuzzylojik-golf 🇺🇸 869 46 70ms 17 Sep 2025 386th prplz 🇦🇺 869 76 126ms 18 Nov 2020 387th stefangimmillaro 867 46 34ms 22 Aug 2023 388th sean-niemann 🇺🇸 867 63 2ms 24 Jul 2023 389th JayXon 🇺🇸 867 67 2ms 11 Sep 2022 390th Natanaelel 🇸🇪 865 33 35ms 1 Mar 2025 391st GolfingSuccess 🇬🇷 864 58 328ms 22 days ago 392nd saito-ta 🇯🇵 863 34 43ms 30 Aug 2022 392nd clockworknazo 863 34 47ms 31 Aug 2022 392nd pardouin 🇫🇷 863 34 50ms 24 Oct 2024 395th GrayJoKing 🇦🇺 863 75 2ms 12 Feb 2023 396th Garklein 🇨🇦 862 29 2ms 8 Jan 2025 397th Steffan153 🇫🇮 862 61 123ms 6 Aug 2024 398th jared-hughes 861 66 2ms 17 Jul 2022 398th primo-ppcg 🇹🇭 861 66 2ms 19 Jul 2022 400th weeble 860 44 4ms 16 Dec 2024 401st FlyingPenguin223 860 75 1ms 18 Mar 2025 402nd primo-ppcg 🇹🇭 860 84 39ms 21 Jun 2022 403rd phdphil 858 43 116ms 27 Apr 2018 404th kevinmchung 858 63 9ms 24 Feb 2018 404th tjtnorton 858 63 9ms 4 Dec 2018 404th leon-w 858 63 9ms 4 Jan 2019 404th hoodadam 858 63 9ms 5 Jul 2019 404th jcl5m1 858 63 9ms 27 Jul 2019 404th jared-hughes 858 63 9ms 7 Oct 2021 404th kellantech 858 63 10ms 3 Jun 2023 404th htareque 858 63 9ms 6 Oct 2023 404th zwxzwxzwx21 858 63 9ms 7 Feb 2024 413th stefangimmillaro 855 66 104ms 15 Jul 2023 414th primo-ppcg 🇹🇭 849 57 1,196ms 11 May 2020 415th xsot 🇸🇬 849 59 436ms 14 May 2024 415th fuzzylojik-golf 🇺🇸 849 59 445ms 6 Jul 2025 417th msrawson 844 64 9ms 31 Aug 2018 417th mortimervonchappuis 844 64 9ms 17 Mar 2020 417th OllieBoyne 🇬🇧 844 64 9ms 30 Dec 2020 417th KatieLG 🇬🇧 844 64 11ms 6 May 2021 417th Fishron 844 64 18ms 19 Oct 2021 417th msbranicky 844 64 9ms 25 Jul 2023 417th jatloe 844 64 10ms 29 Oct 2024 417th ffelixm 844 64 9ms 12 Jun 2025 417th luuumine 🇫🇷 844 64 16ms 13 days ago 417th Babafaba 844 64 11ms 13 days ago 417th ryyyn 🇺🇸 844 64 9ms 12 days ago 428th nwellnhof 🇩🇪 844 84 51ms 18 Jan 2022 429th JayXon 🇺🇸 841 53 420ms 11 Nov 2022 430th rak1507 🇬🇧 840 34 46ms 24 Oct 2021 431st emplv 🇱🇻 840 67 10ms 13 Apr 2021 431st vlpx 🇫🇮 840 67 9ms 18 Jun 2024 433rd sisyphus-ppcg 🇦🇺 839 35 53ms 26 Jul 2022 433rd lynn 839 35 46ms 19 Oct 2023 435th UnderKoen 🇳🇱 838 89 1ms 1 Jul 2022 435th sisyphus-ppcg 🇦🇺 838 89 1ms 7 Jul 2022 435th m-tkach 🇺🇦 838 89 1ms 8 Mar 2023 435th edsrzf 🇳🇿 838 89 2ms 5 Mar 2025 439th primo-ppcg 🇹🇭 836 51 865ms 6 Jul 2021 440th SirBogman 🇺🇸 835 60 420ms 20 Jan 2024 440th Steffan153 🇫🇮 835 60 407ms 20 Jan 2024 440th Yewzir 🇧🇪 835 60 418ms 4 Feb 2024 440th m-tkach 🇺🇦 835 60 374ms 9 Apr 2024 440th sean-niemann 🇺🇸 835 60 448ms 27 Jul 2024 440th CaedenHarper 🇨🇦 835 60 353ms 21 Aug 2024 446th Shanethegamer 🇺🇸 835 84 6ms 21 Mar 2023 447th inventshah 832 79 2ms 25 Jan 2023 447th Alex-x90 🇺🇸 832 79 2ms 27 Jan 2023 447th Yewzir 🇧🇪 832 79 1ms 22 Dec 2023 447th sean-niemann 🇺🇸 832 79 2ms 29 Jul 2024 First Prev 376–450 of 3,098 Next Last