The Tower of Hanoi hole will go live in approximately 2 days. Why not try and solve it ahead of time?
Morse Decoder 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 KatieLG 🇬🇧 375 345 10ms 19 Jul 2025 527th LukeBridges 🇬🇧 374 325 9ms 21 Aug 2024 528th 77Tigers 374 346 9ms 2 Mar 2021 529th neihousaigaai 372 327 9ms 14 May 2021 530th GodlyProgrammer1 370 350 10ms 5 days ago 531st fuchen 370 427 1,420ms 11 May 2020 532nd SirFireball3521 369 276 134ms 1 Mar 2023 533rd jfallon1997 369 351 10ms 24 Aug 2022 534th marcin7Cd 369 420 62ms 11 Mar 2021 535th guliyevemil1 🇦🇿 368 523 322ms 16 Apr 2020 536th TimCurwick 🇺🇸 365 313 217ms 28 Jul 2020 537th Natanaelel 🇸🇪 364 301 7ms 23 Jun 2023 538th Yewzir 🇧🇪 364 699 1,630ms 13 days ago 539th TaserTheFox 🇺🇸 363 356 10ms 4 Apr 2023 539th vgamula 🇺🇦 363 356 9ms 8 Jul 2025 541st CaedenHarper 🇨🇦 362 336 9ms 21 days ago 542nd dzshn 362 357 9ms 25 Nov 2020 542nd Pena86 362 357 12ms 31 Dec 2021 544th s-g-stavely 362 416 2ms 11 May 2021 545th aksyristos 360 359 10ms 12 Mar 2023 545th inverseLorentz 🇦🇺 360 359 9ms 11 Mar 2024 547th MaxCastella 🇫🇷 359 318 224ms 15 Mar 2024 548th Psirving 359 360 11ms 2 Aug 2020 548th fajost 359 360 17ms 8 Sep 2020 550th tomh1012 358 415 390ms 17 Sep 2025 551st leon-w 357 362 11ms 12 Jul 2019 551st TheAristos 357 362 9ms 30 Oct 2019 553rd dokutan 356 285 35ms 21 Apr 2025 554th tomh1012 355 342 9ms 20 Oct 2020 555th KatieLG 🇬🇧 355 345 825ms 27 Jul 2025 556th msbranicky 354 543 297ms 31 Aug 2023 557th wuminws 352 322 2,624ms 20 Feb 2025 558th McErer 351 346 10ms 14 Jan 2019 559th qwjhvbxi 351 368 10ms 12 Feb 2024 560th KatieLG 🇬🇧 351 424 362ms 24 Oct 2022 561st Babafaba 350 370 10ms 5 days ago 562nd alexhuntley 349 444 8ms 11 Apr 2021 563rd omurakazuaki 🇯🇵 347 350 10ms 17 Feb 2021 564th williamlake 346 527 137ms 17 Sep 2021 565th LordSir101 345 352 10ms 16 Aug 2025 566th Laksen 🇩🇰 343 562 28ms 8 Jul 2021 567th KatieLG 🇬🇧 342 355 9ms 4 Feb 2022 567th mrxz 🇳🇱 342 355 8ms 23 Jun 2024 569th RaBa21 🇭🇺 342 378 17ms 18 Jul 2025 570th Babafaba 341 359 1,114ms 4 days ago 571st febiw 341 379 9ms 22 Mar 2020 572nd lukasmoellerch 340 357 10ms 15 Jul 2019 573rd Lv0Sys 🇵🇱 340 381 16ms 10 Jun 2025 574th meenie 339 300 36ms 21 Jan 2023 575th aaronze 🇦🇺 339 359 9ms 1 Apr 2021 576th wrhm 339 382 10ms 15 Dec 2020 577th postie77 339 439 362ms 2 May 2023 578th madeforlosers 338 360 10ms 23 Oct 2024 579th 71c 338 383 9ms 29 Apr 2018 580th SB-945 337 384 12ms 10 Mar 2024 581st msbranicky 336 492 2ms 14 Oct 2023 582nd SteveL-MSFT 335 341 261ms 10 Jun 2020 583rd KatieLG 🇬🇧 334 334 1,054ms 25 Apr 2021 584th madex 🇩🇪 333 388 9ms 12 May 2024 585th arcage 🇯🇵 332 336 1,134ms 10 Aug 2021 586th bbakersmith 332 369 17ms 31 Jul 2021 587th FortuiteMan 🇫🇷 331 391 10ms 10 Sep 2023 588th msbranicky 330 392 10ms 3 Jul 2023 589th biinari 329 309 39ms 25 Mar 2018 590th pg98 329 369 9ms 5 Sep 2019 591st neihousaigaai 328 428 373ms 18 Apr 2021 592nd msbranicky 327 573 3ms 13 Aug 2023 593rd galloj 🇨🇿 324 338 3ms 17 Jan 2023 594th n1LS 323 314 44ms 2 Oct 2019 595th dijs 321 378 9ms 20 Dec 2019 595th SpareManiKatti 321 378 9ms 14 Oct 2021 597th Anonymousellama21 320 342 3ms 16 May 2022 598th GWStuart 318 407 10ms 27 Jan 2023 599th MeWhenI 🇻🇦 317 416 2ms 25 Aug 2023 600th dsntzn 🇸🇰 316 385 10ms 3 Mar 2021 First Prev 526–600 of 863 Next Last
