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 75th KasperKivimaeki 🇫🇮 925 69 383ms 18 days ago 75th JayXon 🇺🇸 925 69 406ms 15 hours ago 83rd rucin93 🇵🇱 925 76 388ms 30 Oct 2025 83rd GolfingSuccess 🇬🇷 925 76 444ms 30 Oct 2025 83rd stefangimmillaro 925 76 431ms 31 Oct 2025 83rd sean-niemann 🇺🇸 925 76 479ms 31 Oct 2025 83rd edsrzf 🇳🇿 925 76 553ms 31 Oct 2025 83rd KasperKivimaeki 🇫🇮 925 76 492ms 1 Nov 2025 83rd namelessiw 925 76 367ms 22 days ago 83rd DialFrost 🇸🇬 925 76 361ms 18 days ago 83rd JayXon 🇺🇸 925 76 526ms 15 hours ago 92nd 2bular 924 35 4ms 1 Nov 2025 93rd bitsandbeyond 🇳🇱 924 46 3ms 2 Nov 2025 93rd sean-niemann 🇺🇸 924 46 3ms 18 days ago 93rd xsot 🇸🇬 924 46 2ms 18 days ago 96th lukegustafson 🇺🇸 924 48 131ms 19 days ago 97th ovs-code 🇩🇪 924 57 66ms 14 days ago 98th rucin93 🇵🇱 924 66 2ms 30 Oct 2025 98th KasperKivimaeki 🇫🇮 924 66 2ms 30 Oct 2025 98th saito-ta 🇯🇵 924 66 2ms 5 Nov 2025 98th DialFrost 🇸🇬 924 66 2ms 18 days ago 98th AdrienHache 🇫🇷 924 66 2ms 18 days ago 103rd bitsandbeyond 🇳🇱 923 52 706ms 11 Nov 2025 103rd GolfingSuccess 🇬🇷 923 52 743ms 20 days ago 103rd sean-niemann 🇺🇸 923 52 762ms 19 days ago 106th edsrzf 🇳🇿 923 73 9ms 19 days ago 107th stefangimmillaro 921 48 8ms 31 Oct 2025 107th rucin93 🇵🇱 921 48 9ms 31 Oct 2025 107th bitsandbeyond 🇳🇱 921 48 8ms 31 Oct 2025 107th GolfingSuccess 🇬🇷 921 48 8ms 3 Nov 2025 107th ovs-code 🇩🇪 921 48 8ms 22 days ago 107th sean-niemann 🇺🇸 921 48 9ms 19 days ago 107th xsot 🇸🇬 921 48 9ms 18 days ago 114th stefangimmillaro 919 50 750ms 30 Oct 2025 114th pardouin 🇫🇷 919 50 774ms 1 Nov 2025 114th sean-niemann 🇺🇸 919 50 813ms 18 days ago 117th rucin93 🇵🇱 918 55 7ms 30 Oct 2025 118th Shanethegamer 🇺🇸 918 62 291ms 3 Nov 2025 118th MeWhenI 🇻🇦 918 62 120ms 26 days ago 118th edsrzf 🇳🇿 918 62 181ms 19 days ago 121st GolfingSuccess 🇬🇷 918 83 8ms 3 Nov 2025 122nd sean-niemann 🇺🇸 918 84 81ms 19 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 25 hours ago 131st JayXon 🇺🇸 916 90 283ms 17 hours ago 132nd sean-niemann 🇺🇸 914 65 117ms 19 days ago 133rd Shanethegamer 🇺🇸 914 84 27ms 2 Nov 2025 133rd m-tkach 🇺🇦 914 84 27ms 19 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 26 days ago 135th sean-niemann 🇺🇸 913 55 15ms 19 days ago 135th xsot 🇸🇬 913 55 11ms 18 days ago 135th jared-hughes 913 55 11ms 17 days ago 135th duckyluuk 🇳🇱 913 55 12ms 16 days ago 135th GrayJoKing 🇦🇺 913 55 12ms 15 days ago 147th sean-niemann 🇺🇸 913 64 5ms 19 days ago 148th pardouin 🇫🇷 913 77 357ms 21 days ago 149th Kacarott 🇦🇺 913 80 69ms 21 days ago 149th ovs-code 🇩🇪 913 80 101ms 21 days ago 151st GolfingSuccess 🇬🇷 912 54 535ms 31 Oct 2025 151st sean-niemann 🇺🇸 912 54 595ms 19 days ago 151st CornerMercury 🇬🇧 912 54 428ms 30 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 159th bitsandbeyond 🇳🇱 911 70 397ms 1 Nov 2025 159th namelessiw 911 70 417ms 2 Nov 2025 First Prev 81–160 of 1,104 Next Last