The Tower of Hanoi hole will go live in approximately 16 hours. Why not try and solve it ahead of time?
Morse Decoder 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 451st bastienvoirin 🇫🇷 383 232 11ms 5 Apr 2020 452nd jameswmccarty 382 233 10ms 7 Mar 2025 453rd bac0id 381 358 365ms 4 Jul 2024 454th TheDrawingCoder-Gamer 380 322 2ms 6 Jul 2025 455th ericlangedijk 🇸🇮 379 360 352ms 19 Mar 2022 456th CarsonChr 🇺🇸 376 362 376ms 21 Jan 2025 457th ImpressedByRocks 375 237 14ms 20 Sep 2022 458th MeWhenI 🇻🇦 375 354 925ms 30 Oct 2023 459th benwilliamgraham 374 238 10ms 10 Nov 2021 460th wh3n3v3r 🇨🇿 373 260 9ms 11 Nov 2024 461st MeWhenI 🇻🇦 373 738 746ms 9 Feb 2025 462nd alexsave 372 261 10ms 7 Nov 2024 463rd masinag 🇮🇹 371 345 2ms 5 Nov 2024 464th dokutan 371 742 765ms 12 Jan 2025 465th ArmaanAS 369 241 11ms 25 Mar 2021 466th yuchuehw 366 243 9ms 4 Jan 2024 466th CLOStrophobic 🇮🇹 366 243 9ms 26 Jan 2025 466th Flekay 🇩🇪 366 243 9ms 11 Jul 2025 469th dokutan 366 370 3ms 29 Apr 2025 470th guliyevemil1 🇦🇿 365 515 322ms 16 Apr 2020 471st frederikb 364 354 349ms 9 Sep 2020 472nd bstrautin 363 249 236ms 5 Jun 2020 473rd fuchen 362 421 1,420ms 11 May 2020 474th dtbao20 🇻🇳 360 247 10ms 1 Oct 2024 474th InigoK 🇺🇸 360 247 9ms 6 Sep 2025 476th yuchuehw 360 358 346ms 4 Jan 2024 477th Yewzir 🇧🇪 360 691 1,630ms 15 days ago 478th scpchicken 🇵🇼 359 248 16ms 7 Apr 2022 479th skps2010 357 249 17ms 28 Dec 2018 479th Indivicivet 357 249 9ms 18 Oct 2021 481st Phanabani 🇺🇸 353 252 10ms 22 Oct 2020 482nd msbranicky 352 535 297ms 31 Aug 2023 483rd cellobix 350 254 15ms 15 Aug 2019 484th proton 🇩🇪 349 195 44ms 9 Jun 2020 484th jaredcrystal 🇺🇸 349 195 36ms 14 Dec 2020 486th Ted-Barrett 🇦🇺 349 255 9ms 1 Oct 2021 487th marcin7Cd 349 412 62ms 11 Mar 2021 488th daedals 346 257 15ms 21 Jun 2019 488th rollershutter 346 257 10ms 9 Sep 2022 490th scpchicken 🇵🇼 343 189 138ms 7 Apr 2022 491st schachmattmatt 342 260 10ms 20 Aug 2021 492nd Natanaelel 🇸🇪 342 301 7ms 23 Jun 2023 493rd hiichbindermax 338 263 10ms 7 days ago 494th dokutan 338 472 2ms 28 Mar 2025 495th janbehrens 🇩🇪 337 180 3ms 6 May 2021 496th robin-scragg 337 264 28ms 23 Jul 2025 497th rvdnieuwendijk 🇳🇱 337 268 264ms 29 Jun 2020 498th williamlake 337 527 137ms 17 Sep 2021 499th yokasuretsu 336 265 9ms 26 Apr 2018 499th petar-donchev 336 265 9ms 8 Sep 2019 499th JunkIce 336 265 17ms 24 Nov 2024 502nd krcs 🇵🇱 334 266 9ms 30 Jun 2023 503rd Dazza314 🇬🇧 333 267 11ms 4 Nov 2020 504th Laksen 🇩🇰 333 562 28ms 8 Jul 2021 505th myfatemi04 332 268 10ms 20 Sep 2018 505th Evan-Robotics 332 268 9ms 28 Jan 2022 507th dokutan 332 434 8ms 4 Feb 2025 508th Bonjour27891 🇻🇳 331 269 12ms 20 Mar 2022 509th msbranicky 330 484 2ms 14 Oct 2023 510th tomh1012 328 415 390ms 17 Sep 2025 511th glesnick 327 272 9ms 15 Jul 2022 512th vibdev 326 298 10ms 26 Aug 2021 513th bkshrader 325 274 17ms 27 Dec 2018 514th alexhuntley 324 444 8ms 11 Apr 2021 515th JunkIce 323 265 459ms 3 Dec 2024 516th geofft 323 275 9ms 13 Dec 2020 516th mbittner20 323 275 9ms 21 Jan 2024 518th DrakeSeteraO 322 276 10ms 19 days ago 518th GodlyProgrammer1 322 276 16ms 7 days ago 520th wuminws 322 318 2,624ms 20 Feb 2025 521st KatieLG 🇬🇧 321 424 362ms 24 Oct 2022 522nd naveenarun 319 279 10ms 6 Jun 2019 523rd NanduBC 318 280 11ms 22 Mar 2021 524th Emutis 🇱🇹 316 281 10ms 15 days ago 525th postie77 316 431 362ms 2 May 2023 First Prev 451–525 of 860 Next Last