The Calendar hole will go live in approximately 10 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 320th MeWhenI 🇻🇦 873 70 3,684ms 26 days ago 320th CaedenHarper 🇨🇦 873 70 4,095ms 20 days ago 320th blaztoma 🇱🇹 873 70 4,405ms 18 days ago 324th MeWhenI 🇻🇦 872 69 1,248ms 27 days ago 325th pardouin 🇫🇷 872 88 26ms 19 days ago 326th Shanethegamer 🇺🇸 871 70 2ms 4 Nov 2025 326th MeWhenI 🇻🇦 871 70 2ms 21 Nov 2025 328th dokutan 871 91 28ms 19 days ago 329th JayXon 🇺🇸 870 119 1,909ms 4 hours ago 330th rucin93 🇵🇱 869 51 124ms 31 Oct 2025 330th GolfingSuccess 🇬🇷 869 51 130ms 3 Nov 2025 332nd albanian-laundromat 869 220 12ms 16 days ago 333rd bitsandbeyond 🇳🇱 868 72 41ms 1 Nov 2025 334th MeWhenI 🇻🇦 868 75 121ms 27 days ago 335th CaedenHarper 🇨🇦 868 95 290ms 16 days ago 336th Shanethegamer 🇺🇸 867 49 420ms 3 Nov 2025 337th targrik 867 51 9ms 30 Oct 2025 337th luuumine 🇫🇷 867 51 8ms 17 days ago 337th emgordon154 867 51 14ms 2 hours ago 340th bitsandbeyond 🇳🇱 867 53 798ms 1 Nov 2025 341st MeWhenI 🇻🇦 867 89 74ms 21 Nov 2025 342nd KatieLG 🇬🇧 867 98 2ms 19 days ago 343rd rucin93 🇵🇱 866 58 11ms 30 Oct 2025 344th emgordon154 866 85 626ms 2 hours ago 345th MeWhenI 🇻🇦 865 79 57ms 27 days ago 346th edsrzf 🇳🇿 865 88 8ms 30 Oct 2025 346th sean-niemann 🇺🇸 865 88 11ms 2 days ago 348th Kacarott 🇦🇺 864 57 478ms 20 days ago 348th KatieLG 🇬🇧 864 57 414ms 20 days ago 348th edsrzf 🇳🇿 864 57 432ms 19 days ago 351st sean-niemann 🇺🇸 862 66 215ms 19 days ago 352nd arcpolaris 862 74 389ms 18 days ago 353rd MeWhenI 🇻🇦 862 89 27ms 26 days ago 354th MeWhenI 🇻🇦 862 92 25ms 26 days ago 355th Kacarott 🇦🇺 861 198 3ms 15 days ago 356th MeWhenI 🇻🇦 861 222 13ms 27 days ago 357th bitsandbeyond 🇳🇱 860 52 51ms 1 Nov 2025 358th Shanethegamer 🇺🇸 860 68 4ms 4 Nov 2025 358th MeWhenI 🇻🇦 860 68 3ms 27 days ago 358th edsrzf 🇳🇿 860 68 3ms 19 days ago 358th DialFrost 🇸🇬 860 68 4ms 17 days ago 362nd GolfingSuccess 🇬🇷 860 74 13ms 15 Nov 2025 363rd pardouin 🇫🇷 860 85 69ms 19 days ago 364th vhoulbreque 🇫🇷 860 106 8ms 19 days ago 365th iczelia 🇩🇪 859 71 2ms 19 days ago 366th DialFrost 🇸🇬 859 96 287ms 93 mins ago 367th albanian-laundromat 859 119 402ms 30 Oct 2025 368th MeWhenI 🇻🇦 857 56 679ms 26 days ago 369th CaedenHarper 🇨🇦 857 90 469ms 21 days ago 369th BlankSpruce 857 90 74ms 14 days ago 371st bitsandbeyond 🇳🇱 853 52 125ms 1 Nov 2025 372nd bitsandbeyond 🇳🇱 853 90 26ms 2 Nov 2025 373rd rucin93 🇵🇱 852 62 2ms 31 Oct 2025 373rd dokutan 852 62 2ms 22 days ago 375th bitsandbeyond 🇳🇱 852 93 27ms 1 Nov 2025 376th MeWhenI 🇻🇦 851 54 779ms 27 days ago 376th emgordon154 851 54 1,048ms 20 hours ago 378th DialFrost 🇸🇬 851 57 2ms 31 hours ago 379th davecame 851 59 11ms 13 Nov 2025 379th Kacarott 🇦🇺 851 59 11ms 15 Nov 2025 379th commandblockguy 🇺🇸 851 59 11ms 22 days ago 379th dokutan 851 59 11ms 22 days ago 379th snoozingnewt 🇨🇦 851 59 11ms 22 days ago 379th vhoulbreque 🇫🇷 851 59 12ms 20 days ago 379th YAJUE114514 851 59 12ms 10 days ago 379th enigma 851 59 17ms 7 hours ago 387th bitsandbeyond 🇳🇱 851 83 77ms 31 Oct 2025 388th Shanethegamer 🇺🇸 850 52 9ms 4 Nov 2025 388th MeWhenI 🇻🇦 850 52 8ms 21 Nov 2025 388th CaedenHarper 🇨🇦 850 52 8ms 21 days ago 391st bitsandbeyond 🇳🇱 850 97 250ms 1 Nov 2025 392nd CaedenHarper 🇨🇦 849 67 165ms 20 days ago 393rd MeWhenI 🇻🇦 849 70 101ms 27 days ago 394th dokutan 849 72 4,130ms 22 days ago 395th Natanaelel 🇸🇪 847 46 33ms 8 Nov 2025 396th h3ra993huskp 🇯🇵 847 83 343ms 7 days ago 397th edsrzf 🇳🇿 845 94 185ms 19 days ago 398th Natanaelel 🇸🇪 844 53 48ms 4 Nov 2025 399th emgordon154 842 57 1,178ms 2 hours ago 400th blaztoma 🇱🇹 842 60 7ms 20 days ago First Prev 321–400 of 1,104 Next Last