The Tower of Hanoi hole will go live in approximately 14 hours. Why not try and solve it ahead of time?
√2 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 749th lmolteno 726 66 25ms 9 Mar 2021 749th dillon-duncando 726 66 24ms 6 Dec 2021 749th NDR0216 🇹🇼 726 66 23ms 13 Feb 2023 749th quimey 726 66 11ms 6 Mar 2023 749th roupiq 🇵🇱 726 66 35ms 21 Feb 2024 749th wh3n3v3r 🇨🇿 726 66 18ms 8 Nov 2024 749th ImpressedByRocks 726 66 10ms 24 May 2025 758th Irratix 🇳🇱 726 81 165ms 1 Oct 2021 759th stefangimmillaro 726 116 373ms 18 Jul 2023 760th jared-hughes 726 142 70ms 7 Feb 2023 761st Herbert00709 🇵🇱 724 64 2,673ms 29 Oct 2024 762nd MeWhenI 🇻🇦 724 103 524ms 28 Feb 2022 763rd rucin93 🇵🇱 724 135 362ms 15 days ago 764th MeWhenI 🇻🇦 723 69 23ms 3 Aug 2024 765th primo-ppcg 🇹🇭 723 73 993ms 25 Nov 2021 765th anter69 🇭🇺 723 73 934ms 19 Apr 2024 767th emgordon154 721 166 472ms 30 Apr 2025 768th primo-ppcg 🇹🇭 720 62 3,731ms 30 Jan 2022 769th LS2021 720 117 365ms 24 Nov 2023 770th WildTooth 719 85 349ms 10 Oct 2025 771st dokutan 719 286 2ms 22 days ago 772nd roguh 🇬🇹 717 59 5ms 26 Jan 2024 773rd CatsAreFluffy 717 82 124ms 7 Dec 2022 774th urojony 🇵🇱 715 67 23ms 3 Jan 2021 774th tetraxile 715 67 23ms 3 Oct 2021 774th Nibamot 715 67 12ms 10 Dec 2021 774th CheeseCake628 🇳🇴 715 67 86ms 9 Feb 2023 774th GeorgeStechman 🇬🇧 715 67 46ms 6 Jan 2024 774th RandGuy 715 67 24ms 25 Jan 2024 774th Ralac07 🇦🇺 715 67 25ms 16 Feb 2024 774th inverseLorentz 🇦🇺 715 67 86ms 10 Apr 2024 774th driri85 715 67 12ms 7 Jan 2025 774th solisolu 715 67 50ms 20 days ago 784th Natanaelel 🇸🇪 714 28 40ms 16 May 2025 784th emgordon154 714 28 35ms 30 Jun 2025 786th MeWhenI 🇻🇦 714 118 389ms 8 Dec 2022 787th MasFlam 713 46 232ms 21 Jun 2024 788th dmrichwa 🇺🇸 712 70 23ms 19 Mar 2022 788th Naruyoko 712 70 73ms 13 Aug 2023 790th Yewzir 🇧🇪 711 145 761ms 14 May 2024 791st lynn 709 63 15ms 15 Nov 2021 792nd stefangimmillaro 708 190 136ms 4 Jun 2025 793rd markus-rekdal 705 68 23ms 31 May 2019 793rd qoqosz 705 68 11ms 6 Jun 2019 793rd giacomogallina 705 68 12ms 6 Jun 2019 793rd skps2010 705 68 12ms 14 Jun 2019 793rd hoodadam 705 68 12ms 19 Jul 2019 793rd dzhang314 705 68 12ms 14 Aug 2019 793rd sk- 705 68 13ms 11 Sep 2019 793rd handisb 705 68 11ms 2 Nov 2019 793rd amishtal 705 68 11ms 27 Nov 2019 793rd Haksell 🇦🇶 705 68 12ms 1 Dec 2019 793rd Matistjati 705 68 12ms 3 Dec 2019 793rd Daniel-Martin576 705 68 11ms 1 Apr 2020 793rd Jviscus1 705 68 12ms 24 Apr 2020 793rd GalladeGuy 🇺🇸 705 68 11ms 23 May 2020 793rd aliakseikalosha 705 68 12ms 9 Jun 2020 793rd Jumprocks1 705 68 11ms 11 Jun 2020 793rd itiievskyi 🇺🇦 705 68 11ms 30 Jul 2020 793rd dev-loop0 705 68 11ms 20 Aug 2020 793rd linstr13 705 68 12ms 29 Sep 2020 793rd mueller14003 705 68 12ms 8 Oct 2020 793rd davidverweij 705 68 12ms 21 Oct 2020 793rd martinsifrar 705 68 12ms 23 Oct 2020 793rd Dazza314 🇬🇧 705 68 12ms 6 Nov 2020 793rd austinrwarner 705 68 12ms 25 Dec 2020 793rd Tess2662 705 68 11ms 11 Jan 2021 793rd fynnkroeger 705 68 12ms 20 Jan 2021 793rd ydevor 🇮🇱 705 68 12ms 22 Feb 2021 793rd asadullayev 705 68 13ms 3 Mar 2021 793rd orifu 705 68 12ms 19 Mar 2021 793rd josephjojoe 705 68 13ms 19 Mar 2021 793rd harrymwilkins 🇬🇧 705 68 12ms 18 Jul 2021 793rd ngocbd 🇻🇳 705 68 11ms 31 Aug 2021 793rd potato-jackson 705 68 11ms 6 Sep 2021 First Prev 751–825 of 2,783 Next Last
