The Tower of Hanoi hole will go live in approximately 17 hours. Why not try and solve it ahead of time?
√2 in all languages 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 526th DialFrost 🇸🇬 863 54 275ms 19 Jul 2024 527th MeWhenI 🇻🇦 862 29 664ms 25 Jul 2022 527th lifthrasiir 🇰🇷 862 29 55ms 5 Dec 2024 529th ovs-code 🇩🇪 860 62 959ms 15 Oct 2025 530th AforAmpere 859 56 9ms 21 Jan 2020 530th LucasBertocchini 859 56 9ms 9 Dec 2020 530th argusdusty 🇺🇸 859 56 9ms 31 Dec 2020 530th knutae 🇳🇴 859 56 9ms 1 Nov 2021 530th Irratix 🇳🇱 859 56 9ms 26 Apr 2022 530th jhu04 859 56 9ms 23 Sep 2022 530th fkantelberg 859 56 9ms 5 Aug 2023 530th Natanaelel 🇸🇪 859 56 9ms 2 Dec 2023 530th programjames 859 56 9ms 24 Dec 2023 530th mathisfun271 859 56 9ms 13 Feb 2024 530th elgan65536 859 56 10ms 11 Apr 2024 530th anter69 🇭🇺 859 56 9ms 19 Apr 2024 530th croc54 859 56 10ms 3 Dec 2024 530th xiaoyiming123 859 56 9ms 24 Jul 2025 544th primo-ppcg 🇹🇭 858 90 216ms 10 Dec 2022 545th DialFrost 🇸🇬 856 102 147ms 14 Apr 2025 546th lynn 855 41 231ms 7 Mar 2021 547th ovs-code 🇩🇪 854 40 184ms 23 Aug 2024 548th sean-niemann 🇺🇸 854 55 2,247ms 23 Oct 2024 549th primo-ppcg 🇹🇭 854 106 1,972ms 6 Feb 2023 550th primo-ppcg 🇹🇭 854 152 282ms 22 Jan 2020 551st DialFrost 🇸🇬 851 57 140ms 3 Aug 2024 551st ovs-code 🇩🇪 851 57 139ms 3 Aug 2024 553rd piano-miles 851 59 9ms 31 Dec 2023 553rd Larento 851 59 9ms 5 Nov 2024 555th primo-ppcg 🇹🇭 850 159 142ms 5 Apr 2025 556th bitsandbeyond 🇳🇱 848 55 316ms 24 days ago 557th MeWhenI 🇻🇦 847 63 914ms 12 May 2023 557th emgordon154 847 63 1,082ms 17 Nov 2024 559th Natanaelel 🇸🇪 847 70 165ms 6 Jul 2025 560th SirBogman 🇺🇸 845 37 956ms 9 Jan 2024 561st prplz 🇦🇺 844 57 52ms 13 Oct 2020 561st TFeld00 🇩🇰 844 57 29ms 18 Jan 2021 561st vezzick 844 57 9ms 5 Mar 2021 561st vang1ong7ang 844 57 241ms 26 Oct 2021 561st dsh0 844 57 54ms 7 Jun 2022 561st vishwathg 844 57 81ms 4 Feb 2023 561st albanian-laundromat 844 57 56ms 19 Sep 2025 568th DialFrost 🇸🇬 844 90 529ms 26 Oct 2023 569th cduerm 844 108 268ms 12 May 2020 569th elgan65536 844 108 264ms 23 Oct 2023 571st primo-ppcg 🇹🇭 842 121 219ms 4 Aug 2023 572nd Shanethegamer 🇺🇸 840 92 186ms 17 Nov 2022 573rd Steffan153 🇫🇮 839 55 2,475ms 27 Oct 2023 574th JayXon 🇺🇸 839 101 358ms 21 Nov 2021 574th primo-ppcg 🇹🇭 839 101 348ms 21 Nov 2021 574th fuzzylojik-golf 🇺🇸 839 101 364ms 13 Aug 2025 577th MeWhenI 🇻🇦 838 56 2,703ms 2 Dec 2024 577th perlebach 🇨🇿 838 56 2,781ms 7 Jun 2025 577th Chinay-Domitrix 🇺🇸 838 56 2,042ms 26 days ago 580th inventshah 837 60 9ms 23 Jul 2024 581st msbranicky 836 109 265ms 31 Aug 2023 582nd ovs-code 🇩🇪 836 144 512ms 29 Mar 2025 583rd jared-hughes 835 122 318ms 6 Feb 2023 584th primo-ppcg 🇹🇭 834 157 486ms 16 Jan 2021 585th stefangimmillaro 833 41 52ms 26 Dec 2024 586th DialFrost 🇸🇬 833 64 976ms 23 Aug 2024 587th MeWhenI 🇻🇦 832 50 70ms 1 Nov 2023 587th DialFrost 🇸🇬 832 50 71ms 9 Apr 2025 589th Shanethegamer 🇺🇸 832 55 372ms 16 Jan 2024 590th jared-hughes 832 122 22ms 23 Sep 2025 591st sean-niemann 🇺🇸 831 102 367ms 7 Aug 2023 592nd toombs-caeman 829 58 12ms 11 Mar 2020 592nd shraiwi 829 58 13ms 30 Apr 2020 592nd dzshn 829 58 12ms 18 Aug 2021 592nd cbrt-x 829 58 12ms 26 Sep 2021 592nd Indivicivet 829 58 11ms 17 Oct 2021 592nd jmerle 🇳🇱 829 58 12ms 22 Jan 2022 592nd thatbirdguythatuknownot 829 58 11ms 30 Jan 2023 592nd Yewzir 🇧🇪 829 58 12ms 1 May 2023 592nd janbehrens 🇩🇪 829 58 11ms 17 Jun 2023 First Prev 526–600 of 2,810 Next Last