The Calendar hole will go live in approximately 11 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 81st rucin93 🇵🇱 925 76 388ms 30 Oct 2025 81st GolfingSuccess 🇬🇷 925 76 444ms 30 Oct 2025 81st stefangimmillaro 925 76 431ms 31 Oct 2025 81st sean-niemann 🇺🇸 925 76 479ms 31 Oct 2025 81st edsrzf 🇳🇿 925 76 553ms 31 Oct 2025 81st KasperKivimaeki 🇫🇮 925 76 492ms 1 Nov 2025 81st namelessiw 925 76 367ms 21 days ago 81st DialFrost 🇸🇬 925 76 361ms 18 days ago 81st JayXon 🇺🇸 925 76 526ms 81 mins ago 90th 2bular 924 35 4ms 1 Nov 2025 91st bitsandbeyond 🇳🇱 924 46 3ms 2 Nov 2025 91st sean-niemann 🇺🇸 924 46 3ms 18 days ago 91st xsot 🇸🇬 924 46 2ms 17 days ago 94th lukegustafson 🇺🇸 924 48 131ms 18 days ago 95th ovs-code 🇩🇪 924 57 66ms 13 days ago 96th bitsandbeyond 🇳🇱 923 52 706ms 11 Nov 2025 96th GolfingSuccess 🇬🇷 923 52 743ms 19 days ago 96th sean-niemann 🇺🇸 923 52 762ms 18 days ago 99th rucin93 🇵🇱 923 66 2ms 30 Oct 2025 99th KasperKivimaeki 🇫🇮 923 66 2ms 30 Oct 2025 99th saito-ta 🇯🇵 923 66 2ms 5 Nov 2025 99th DialFrost 🇸🇬 923 66 2ms 18 days ago 99th AdrienHache 🇫🇷 923 66 2ms 17 days ago 104th edsrzf 🇳🇿 923 73 9ms 19 days ago 105th stefangimmillaro 921 48 8ms 31 Oct 2025 105th rucin93 🇵🇱 921 48 9ms 31 Oct 2025 105th bitsandbeyond 🇳🇱 921 48 8ms 31 Oct 2025 105th GolfingSuccess 🇬🇷 921 48 8ms 3 Nov 2025 105th ovs-code 🇩🇪 921 48 8ms 21 days ago 105th sean-niemann 🇺🇸 921 48 9ms 18 days ago 105th xsot 🇸🇬 921 48 9ms 17 days ago 112th stefangimmillaro 919 50 750ms 30 Oct 2025 112th pardouin 🇫🇷 919 50 774ms 1 Nov 2025 112th sean-niemann 🇺🇸 919 50 813ms 18 days ago 115th rucin93 🇵🇱 918 55 7ms 30 Oct 2025 116th Shanethegamer 🇺🇸 918 62 291ms 3 Nov 2025 116th MeWhenI 🇻🇦 918 62 120ms 26 days ago 116th edsrzf 🇳🇿 918 62 181ms 19 days ago 119th GolfingSuccess 🇬🇷 918 83 8ms 3 Nov 2025 120th sean-niemann 🇺🇸 918 84 81ms 18 days ago 121st Shanethegamer 🇺🇸 917 49 420ms 3 Nov 2025 121st sean-niemann 🇺🇸 917 49 232ms 2 days ago 123rd rucin93 🇵🇱 917 71 116ms 30 Oct 2025 123rd kumavale 917 71 124ms 31 Oct 2025 123rd stefangimmillaro 917 71 119ms 31 Oct 2025 123rd CaedenHarper 🇨🇦 917 71 121ms 20 days ago 123rd edsrzf 🇳🇿 917 71 115ms 19 days ago 123rd sean-niemann 🇺🇸 917 71 119ms 18 days ago 123rd DialFrost 🇸🇬 917 71 119ms 18 days ago 123rd JayXon 🇺🇸 917 71 125ms 11 hours ago 131st JayXon 🇺🇸 916 90 283ms 2 hours ago 132nd sean-niemann 🇺🇸 914 65 117ms 18 days ago 133rd Shanethegamer 🇺🇸 914 84 27ms 2 Nov 2025 133rd m-tkach 🇺🇦 914 84 27ms 18 days ago 135th stefangimmillaro 913 55 11ms 30 Oct 2025 135th bricknellj 913 55 12ms 30 Oct 2025 135th ovs-code 🇩🇪 913 55 13ms 31 Oct 2025 135th bitsandbeyond 🇳🇱 913 55 11ms 1 Nov 2025 135th GolfingSuccess 🇬🇷 913 55 13ms 3 Nov 2025 135th Mukundan314 913 55 11ms 15 Nov 2025 135th m-tkach 🇺🇦 913 55 11ms 25 days ago 135th sean-niemann 🇺🇸 913 55 15ms 18 days ago 135th xsot 🇸🇬 913 55 11ms 17 days ago 135th jared-hughes 913 55 11ms 16 days ago 135th duckyluuk 🇳🇱 913 55 12ms 15 days ago 135th GrayJoKing 🇦🇺 913 55 12ms 14 days ago 147th sean-niemann 🇺🇸 913 64 5ms 18 days ago 148th pardouin 🇫🇷 913 77 357ms 20 days ago 149th Kacarott 🇦🇺 913 80 69ms 20 days ago 149th ovs-code 🇩🇪 913 80 101ms 20 days ago 151st GolfingSuccess 🇬🇷 912 54 535ms 31 Oct 2025 151st sean-niemann 🇺🇸 912 54 595ms 18 days ago 151st CornerMercury 🇬🇧 912 54 428ms 15 hours ago 154th stefangimmillaro 911 55 82ms 31 Oct 2025 155th Shanethegamer 🇺🇸 911 66 1,247ms 3 Nov 2025 155th edsrzf 🇳🇿 911 66 1,434ms 19 days ago 157th pardouin 🇫🇷 911 67 4,035ms 1 Nov 2025 157th bitsandbeyond 🇳🇱 911 67 4,371ms 2 Nov 2025 157th sean-niemann 🇺🇸 911 67 2,803ms 18 days ago 160th bitsandbeyond 🇳🇱 911 70 397ms 1 Nov 2025 First Prev 81–160 of 1,097 Next Last