The Calendar hole will go live in approximately 6 days. Why not try and solve it ahead of time?
Tower of Hanoi 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 Tower of Hanoi 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 Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers 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 Tower of Hanoi 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 Multitap Input NFA Simulator Numbrix Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Taxicab Numbers Turtle Tutorial # Golfer Points Bytes Time Submitted 321st Shanethegamer 🇺🇸 876 68 119ms 4 Nov 2025 322nd snoozingnewt 🇨🇦 876 78 39ms 13 days ago 323rd bitsandbeyond 🇳🇱 876 104 7ms 2 Nov 2025 324th MeWhenI 🇻🇦 874 37 2ms 21 Nov 2025 325th sean-niemann 🇺🇸 874 67 1,225ms 23 days ago 326th Shanethegamer 🇺🇸 874 73 341ms 4 Nov 2025 326th MeWhenI 🇻🇦 874 73 378ms 21 Nov 2025 326th CaedenHarper 🇨🇦 874 73 393ms 26 days ago 329th DialFrost 🇸🇬 873 55 724ms 23 days ago 330th Shanethegamer 🇺🇸 873 70 3,753ms 4 Nov 2025 330th MeWhenI 🇻🇦 873 70 3,079ms 24 Nov 2025 330th CaedenHarper 🇨🇦 873 70 3,814ms 25 days ago 330th blaztoma 🇱🇹 873 70 4,405ms 23 days ago 334th pardouin 🇫🇷 873 88 26ms 24 days ago 335th Shanethegamer 🇺🇸 871 70 2ms 4 Nov 2025 335th MeWhenI 🇻🇦 871 70 2ms 21 Nov 2025 337th dokutan 871 91 28ms 23 days ago 338th JayXon 🇺🇸 870 119 1,909ms 4 days ago 339th rucin93 🇵🇱 869 51 124ms 31 Oct 2025 339th GolfingSuccess 🇬🇷 869 51 130ms 3 Nov 2025 341st CaedenHarper 🇨🇦 869 95 290ms 20 days ago 342nd albanian-laundromat 869 220 12ms 20 days ago 343rd bitsandbeyond 🇳🇱 868 72 41ms 1 Nov 2025 344th MeWhenI 🇻🇦 868 75 121ms 23 Nov 2025 345th MeWhenI 🇻🇦 868 89 55ms 21 Nov 2025 346th Shanethegamer 🇺🇸 867 49 420ms 3 Nov 2025 347th targrik 867 51 9ms 30 Oct 2025 347th luuumine 🇫🇷 867 51 8ms 21 days ago 347th emgordon154 867 51 9ms 4 days ago 350th bitsandbeyond 🇳🇱 867 53 798ms 1 Nov 2025 351st emgordon154 867 85 547ms 4 days ago 352nd KatieLG 🇬🇧 867 98 2ms 24 days ago 353rd rucin93 🇵🇱 866 58 11ms 30 Oct 2025 354th sean-niemann 🇺🇸 865 74 16ms 4 days ago 355th MeWhenI 🇻🇦 865 79 48ms 23 Nov 2025 356th edsrzf 🇳🇿 865 88 8ms 30 Oct 2025 356th sean-niemann 🇺🇸 865 88 9ms 7 days ago 358th Kacarott 🇦🇺 864 57 478ms 25 days ago 358th KatieLG 🇬🇧 864 57 414ms 24 days ago 358th edsrzf 🇳🇿 864 57 432ms 24 days ago 358th Natanaelel 🇸🇪 864 57 484ms 4 hours ago 362nd canissimia 🇦🇶 864 179 33ms 33 hours ago 363rd MeWhenI 🇻🇦 863 89 27ms 24 Nov 2025 364th arcpolaris 862 74 364ms 22 days ago 365th MeWhenI 🇻🇦 862 92 25ms 24 Nov 2025 366th MeWhenI 🇻🇦 861 222 13ms 23 Nov 2025 367th bitsandbeyond 🇳🇱 860 52 36ms 1 Nov 2025 368th GolfingSuccess 🇬🇷 860 74 13ms 15 Nov 2025 369th pardouin 🇫🇷 860 85 62ms 24 days ago 370th DialFrost 🇸🇬 860 96 287ms 4 days ago 371st vhoulbreque 🇫🇷 860 106 8ms 23 days ago 372nd iczelia 🇩🇪 859 71 2ms 23 days ago 373rd albanian-laundromat 859 119 402ms 30 Oct 2025 374th CaedenHarper 🇨🇦 858 90 395ms 26 days ago 374th BlankSpruce 858 90 58ms 19 days ago 376th MeWhenI 🇻🇦 857 56 679ms 24 Nov 2025 377th rucin93 🇵🇱 854 62 2ms 31 Oct 2025 377th dokutan 854 62 2ms 26 days ago 379th bitsandbeyond 🇳🇱 854 90 26ms 2 Nov 2025 380th bitsandbeyond 🇳🇱 853 52 125ms 1 Nov 2025 381st bitsandbeyond 🇳🇱 852 93 27ms 1 Nov 2025 382nd MeWhenI 🇻🇦 851 54 779ms 23 Nov 2025 382nd emgordon154 851 54 1,048ms 5 days ago 384th DialFrost 🇸🇬 851 57 2ms 5 days ago 385th davecame 851 59 11ms 13 Nov 2025 385th Kacarott 🇦🇺 851 59 11ms 15 Nov 2025 385th commandblockguy 🇺🇸 851 59 11ms 27 days ago 385th dokutan 851 59 11ms 27 days ago 385th snoozingnewt 🇨🇦 851 59 11ms 26 days ago 385th vhoulbreque 🇫🇷 851 59 12ms 24 days ago 385th YAJUE114514 851 59 12ms 15 days ago 385th enigma 851 59 12ms 4 days ago 393rd MeWhenI 🇻🇦 851 70 101ms 23 Nov 2025 394th bitsandbeyond 🇳🇱 851 83 77ms 31 Oct 2025 395th bitsandbeyond 🇳🇱 851 97 250ms 1 Nov 2025 396th Shanethegamer 🇺🇸 850 52 9ms 4 Nov 2025 396th MeWhenI 🇻🇦 850 52 8ms 21 Nov 2025 396th CaedenHarper 🇨🇦 850 52 8ms 26 days ago 399th MeWhenI 🇻🇦 849 69 1,239ms 23 Nov 2025 400th dokutan 849 72 3,791ms 26 days ago First Prev 321–400 of 1,125 Next Last