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 78th AdrienHache 🇫🇷 924 69 405ms 1 Nov 2025 78th pardouin 🇫🇷 924 69 388ms 20 days ago 78th DialFrost 🇸🇬 924 69 413ms 18 days ago 78th KasperKivimaeki 🇫🇮 924 69 383ms 17 days ago 85th rucin93 🇵🇱 924 76 388ms 30 Oct 2025 85th GolfingSuccess 🇬🇷 924 76 444ms 30 Oct 2025 85th stefangimmillaro 924 76 431ms 31 Oct 2025 85th sean-niemann 🇺🇸 924 76 479ms 31 Oct 2025 85th edsrzf 🇳🇿 924 76 553ms 31 Oct 2025 85th KasperKivimaeki 🇫🇮 924 76 492ms 1 Nov 2025 85th namelessiw 924 76 367ms 21 days ago 85th DialFrost 🇸🇬 924 76 361ms 18 days ago 93rd bitsandbeyond 🇳🇱 923 52 706ms 11 Nov 2025 93rd GolfingSuccess 🇬🇷 923 52 743ms 19 days ago 93rd sean-niemann 🇺🇸 923 52 762ms 18 days ago 96th rucin93 🇵🇱 923 66 2ms 30 Oct 2025 96th KasperKivimaeki 🇫🇮 923 66 2ms 30 Oct 2025 96th saito-ta 🇯🇵 923 66 2ms 5 Nov 2025 96th DialFrost 🇸🇬 923 66 2ms 18 days ago 96th AdrienHache 🇫🇷 923 66 2ms 17 days ago 101st edsrzf 🇳🇿 923 73 9ms 19 days ago 102nd stefangimmillaro 921 48 8ms 31 Oct 2025 102nd rucin93 🇵🇱 921 48 9ms 31 Oct 2025 102nd bitsandbeyond 🇳🇱 921 48 8ms 31 Oct 2025 102nd GolfingSuccess 🇬🇷 921 48 8ms 3 Nov 2025 102nd ovs-code 🇩🇪 921 48 8ms 21 days ago 102nd sean-niemann 🇺🇸 921 48 9ms 18 days ago 102nd xsot 🇸🇬 921 48 9ms 17 days ago 109th sean-niemann 🇺🇸 921 55 97ms 18 days ago 110th stefangimmillaro 919 50 750ms 30 Oct 2025 110th pardouin 🇫🇷 919 50 774ms 1 Nov 2025 110th sean-niemann 🇺🇸 919 50 813ms 18 days ago 113th rucin93 🇵🇱 918 55 7ms 30 Oct 2025 114th Shanethegamer 🇺🇸 918 62 291ms 3 Nov 2025 114th MeWhenI 🇻🇦 918 62 120ms 26 days ago 114th edsrzf 🇳🇿 918 62 181ms 19 days ago 117th GolfingSuccess 🇬🇷 918 83 8ms 3 Nov 2025 118th sean-niemann 🇺🇸 918 84 81ms 18 days ago 119th Shanethegamer 🇺🇸 917 49 420ms 3 Nov 2025 119th sean-niemann 🇺🇸 917 49 232ms 2 days ago 121st rucin93 🇵🇱 917 71 116ms 30 Oct 2025 121st kumavale 917 71 124ms 31 Oct 2025 121st stefangimmillaro 917 71 119ms 31 Oct 2025 121st CaedenHarper 🇨🇦 917 71 121ms 20 days ago 121st edsrzf 🇳🇿 917 71 115ms 19 days ago 121st sean-niemann 🇺🇸 917 71 119ms 18 days ago 121st DialFrost 🇸🇬 917 71 119ms 18 days ago 121st JayXon 🇺🇸 917 71 132ms 9 hours ago 129th JayXon 🇺🇸 916 90 283ms 70 mins ago 130th sean-niemann 🇺🇸 914 65 117ms 18 days ago 131st Shanethegamer 🇺🇸 914 84 27ms 2 Nov 2025 131st m-tkach 🇺🇦 914 84 27ms 18 days ago 133rd stefangimmillaro 913 55 11ms 30 Oct 2025 133rd bricknellj 913 55 12ms 30 Oct 2025 133rd ovs-code 🇩🇪 913 55 13ms 31 Oct 2025 133rd bitsandbeyond 🇳🇱 913 55 11ms 1 Nov 2025 133rd GolfingSuccess 🇬🇷 913 55 13ms 3 Nov 2025 133rd Mukundan314 913 55 11ms 15 Nov 2025 133rd m-tkach 🇺🇦 913 55 11ms 25 days ago 133rd sean-niemann 🇺🇸 913 55 15ms 18 days ago 133rd xsot 🇸🇬 913 55 11ms 17 days ago 133rd jared-hughes 913 55 11ms 16 days ago 133rd duckyluuk 🇳🇱 913 55 12ms 15 days ago 133rd GrayJoKing 🇦🇺 913 55 12ms 14 days ago 145th sean-niemann 🇺🇸 913 64 5ms 18 days ago 146th Kacarott 🇦🇺 913 80 69ms 20 days ago 146th ovs-code 🇩🇪 913 80 101ms 20 days ago 148th GolfingSuccess 🇬🇷 912 54 535ms 31 Oct 2025 148th sean-niemann 🇺🇸 912 54 595ms 18 days ago 148th CornerMercury 🇬🇧 912 54 428ms 14 hours ago 151st pardouin 🇫🇷 912 77 357ms 20 days ago 152nd stefangimmillaro 911 55 82ms 31 Oct 2025 153rd Shanethegamer 🇺🇸 911 66 1,247ms 3 Nov 2025 153rd edsrzf 🇳🇿 911 66 1,434ms 18 days ago 155th pardouin 🇫🇷 911 67 4,035ms 1 Nov 2025 155th bitsandbeyond 🇳🇱 911 67 4,371ms 2 Nov 2025 155th sean-niemann 🇺🇸 911 67 2,803ms 18 days ago 158th stefangimmillaro 911 75 41ms 31 Oct 2025 159th bitsandbeyond 🇳🇱 910 70 397ms 1 Nov 2025 159th namelessiw 910 70 417ms 2 Nov 2025 First Prev 81–160 of 1,093 Next Last