The Tower of Hanoi hole will go live in approximately 41 hours. Why not try and solve it ahead of time?
Cubes 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 601st TheAristos 457 207 10ms 16 Oct 2019 601st Mathrew2012 457 207 10ms 30 Aug 2024 601st commandblockguy 🇺🇸 457 207 9ms 4 May 2025 604th asheeri 454 208 10ms 16 Aug 2021 604th Indivicivet 454 208 10ms 26 Oct 2021 606th Shanethegamer 🇺🇸 453 262 8ms 12 May 2023 607th msbranicky 453 321 2ms 26 Sep 2023 608th Psirving 452 209 10ms 3 Aug 2020 608th Andriamanitra 🇫🇮 452 209 11ms 9 Apr 2022 608th nstearns96 🇬🇧 452 209 9ms 12 Jan 2023 611th Radwatch 452 420 78ms 28 Jun 2022 612th aspiringLich 452 428 179ms 12 May 2022 612th msbranicky 452 428 185ms 6 Oct 2023 614th dsx20 451 381 359ms 3 Dec 2022 615th adoxography 450 210 9ms 6 Feb 2019 615th sk- 450 210 10ms 11 Sep 2020 615th argusdusty 🇺🇸 450 210 9ms 11 Jan 2021 615th Andrey2001 450 210 10ms 5 days ago 619th Shanethegamer 🇺🇸 450 440 335ms 25 Sep 2025 620th adriweb 🇫🇷 449 264 8ms 21 Aug 2023 620th tomh1012 449 264 9ms 7 days ago 622nd adamnielson42 🇺🇸 448 211 12ms 14 Apr 2023 622nd BREMAUCY 🇫🇷 448 211 9ms 22 Feb 2024 624th juliansiebert 🇩🇪 447 211 190ms 22 Jul 2022 625th ShiraJoseph 🇺🇸 447 265 9ms 28 Apr 2022 626th Schmitt-Very-Cool 447 443 350ms 26 Sep 2025 627th galloj 🇨🇿 446 212 10ms 20 Aug 2022 627th RedzGoose 🇦🇺 446 212 9ms 14 Oct 2024 629th roavin 446 385 329ms 7 Jun 2022 630th Maashau 445 390 3ms 3 days ago 631st shen-hong-xin 444 213 9ms 9 Jul 2021 631st jfallon1997 444 213 9ms 16 Aug 2022 631st StefanHabel 🇨🇦 444 213 10ms 12 Dec 2022 634th lukasmoellerch 444 267 9ms 15 Jul 2019 635th janbehrens 🇩🇪 444 391 2ms 3 Jan 2022 636th p-vf 🇨🇭 443 388 341ms 21 Nov 2021 637th MichalMarsalek 🇨🇿 443 826 3ms 25 Dec 2022 638th hjcafaroUC 442 214 9ms 1 Aug 2020 638th AlephSquirrel 442 214 9ms 8 Jul 2022 638th lomarbrick 442 214 10ms 22 May 2023 638th stefangimmillaro 442 214 10ms 19 Jun 2023 638th lhulinsky 442 214 9ms 21 Oct 2024 638th qpwoeirut 442 214 10ms 16 Sep 2025 644th mrmena 🇦🇺 441 393 54ms 10 Jun 2024 645th jjgry 440 215 10ms 1 Mar 2021 645th jhpaques 🇫🇷 440 215 10ms 21 Sep 2022 647th yzhs 🇩🇪 440 348 152ms 25 Jul 2021 648th olleicua 🇺🇸 440 832 3ms 15 Jul 2025 649th olleicua 🇺🇸 439 270 9ms 9 Feb 2024 650th astdefu 439 395 3ms 10 Dec 2022 651st The3gs 438 216 9ms 13 Oct 2020 651st abailey2020 🇺🇸 438 216 9ms 13 Dec 2020 651st Pulencode 🇨🇨 438 216 10ms 14 Nov 2024 654th Lv0Sys 🇵🇱 438 271 9ms 10 Jun 2025 655th janbehrens 🇩🇪 438 433 2,297ms 20 Nov 2022 656th hamhub7 437 393 335ms 11 Aug 2022 657th KevinMarquette 🇺🇸 436 216 221ms 6 Jun 2020 658th knutae 🇳🇴 436 217 11ms 19 Jul 2019 658th bobbysq 436 217 9ms 22 Jul 2023 658th roguh 🇬🇹 436 217 9ms 20 Oct 2024 661st qzdl 436 381 8ms 20 Sep 2020 662nd raphaelimahorn 436 454 320ms 21 Oct 2020 663rd rambox11 435 399 4ms 12 Mar 2019 664th Pena86 435 445 186ms 2 Jan 2022 665th btjones0 434 218 25ms 15 Jul 2022 665th FranklinJiaChen 434 218 10ms 3 Jul 2024 665th EthanJantz 434 218 12ms 12 Aug 2025 668th adamnielson42 🇺🇸 434 273 9ms 25 Apr 2023 669th jared-hughes 433 191 34ms 11 Oct 2022 670th orthoplex 🇨🇽 433 693 2ms 9 Jun 2024 671st cubed-guy 432 219 11ms 21 Aug 2021 671st rowboat1 432 219 9ms 18 Jun 2022 671st NerdyMcNerd42 432 219 11ms 20 Aug 2022 671st smilesformiles3 432 219 9ms 14 Jun 2025 675th OllieBoyne 🇬🇧 430 220 12ms 2 Jun 2021 First Prev 601–675 of 1,641 Next Last
