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 77th pardouin 🇫🇷 925 69 388ms 21 days ago 77th DialFrost 🇸🇬 925 69 413ms 19 days ago 77th KasperKivimaeki 🇫🇮 925 69 383ms 18 days ago 77th JayXon 🇺🇸 925 69 406ms 17 hours ago 85th rucin93 🇵🇱 925 76 388ms 30 Oct 2025 85th GolfingSuccess 🇬🇷 925 76 444ms 30 Oct 2025 85th stefangimmillaro 925 76 431ms 31 Oct 2025 85th sean-niemann 🇺🇸 925 76 479ms 31 Oct 2025 85th edsrzf 🇳🇿 925 76 553ms 31 Oct 2025 85th KasperKivimaeki 🇫🇮 925 76 492ms 1 Nov 2025 85th namelessiw 925 76 367ms 22 days ago 85th DialFrost 🇸🇬 925 76 361ms 19 days ago 85th JayXon 🇺🇸 925 76 526ms 17 hours ago 94th 2bular 924 35 4ms 1 Nov 2025 95th bitsandbeyond 🇳🇱 924 46 3ms 2 Nov 2025 95th sean-niemann 🇺🇸 924 46 3ms 18 days ago 95th xsot 🇸🇬 924 46 2ms 18 days ago 98th lukegustafson 🇺🇸 924 48 131ms 19 days ago 99th ovs-code 🇩🇪 924 57 66ms 14 days ago 100th rucin93 🇵🇱 924 66 2ms 30 Oct 2025 100th KasperKivimaeki 🇫🇮 924 66 2ms 30 Oct 2025 100th saito-ta 🇯🇵 924 66 2ms 5 Nov 2025 100th DialFrost 🇸🇬 924 66 2ms 19 days ago 100th AdrienHache 🇫🇷 924 66 2ms 18 days ago 105th bitsandbeyond 🇳🇱 923 52 706ms 11 Nov 2025 105th GolfingSuccess 🇬🇷 923 52 743ms 20 days ago 105th sean-niemann 🇺🇸 923 52 762ms 19 days ago 108th edsrzf 🇳🇿 923 73 9ms 19 days ago 109th stefangimmillaro 921 48 8ms 31 Oct 2025 109th rucin93 🇵🇱 921 48 9ms 31 Oct 2025 109th bitsandbeyond 🇳🇱 921 48 8ms 31 Oct 2025 109th GolfingSuccess 🇬🇷 921 48 8ms 3 Nov 2025 109th ovs-code 🇩🇪 921 48 8ms 22 days ago 109th sean-niemann 🇺🇸 921 48 9ms 19 days ago 109th xsot 🇸🇬 921 48 9ms 18 days ago 116th stefangimmillaro 919 50 750ms 30 Oct 2025 116th pardouin 🇫🇷 919 50 774ms 1 Nov 2025 116th sean-niemann 🇺🇸 919 50 813ms 19 days ago 119th rucin93 🇵🇱 918 55 7ms 30 Oct 2025 120th Shanethegamer 🇺🇸 918 62 291ms 3 Nov 2025 120th MeWhenI 🇻🇦 918 62 120ms 26 days ago 120th edsrzf 🇳🇿 918 62 181ms 19 days ago 123rd GolfingSuccess 🇬🇷 918 83 8ms 3 Nov 2025 124th sean-niemann 🇺🇸 918 84 81ms 19 days ago 125th rucin93 🇵🇱 917 71 116ms 30 Oct 2025 125th kumavale 917 71 124ms 31 Oct 2025 125th stefangimmillaro 917 71 119ms 31 Oct 2025 125th CaedenHarper 🇨🇦 917 71 121ms 20 days ago 125th edsrzf 🇳🇿 917 71 115ms 19 days ago 125th sean-niemann 🇺🇸 917 71 119ms 19 days ago 125th DialFrost 🇸🇬 917 71 119ms 19 days ago 125th JayXon 🇺🇸 917 71 125ms 27 hours ago 133rd JayXon 🇺🇸 916 90 283ms 19 hours ago 134th sean-niemann 🇺🇸 914 65 117ms 19 days ago 135th Shanethegamer 🇺🇸 914 84 27ms 2 Nov 2025 135th m-tkach 🇺🇦 914 84 27ms 19 days ago 137th stefangimmillaro 913 55 11ms 30 Oct 2025 137th bricknellj 913 55 12ms 30 Oct 2025 137th ovs-code 🇩🇪 913 55 13ms 31 Oct 2025 137th bitsandbeyond 🇳🇱 913 55 11ms 1 Nov 2025 137th GolfingSuccess 🇬🇷 913 55 13ms 3 Nov 2025 137th Mukundan314 913 55 11ms 15 Nov 2025 137th m-tkach 🇺🇦 913 55 11ms 26 days ago 137th sean-niemann 🇺🇸 913 55 15ms 19 days ago 137th xsot 🇸🇬 913 55 11ms 18 days ago 137th jared-hughes 913 55 11ms 17 days ago 137th duckyluuk 🇳🇱 913 55 12ms 16 days ago 137th GrayJoKing 🇦🇺 913 55 12ms 15 days ago 149th sean-niemann 🇺🇸 913 64 5ms 19 days ago 150th pardouin 🇫🇷 913 77 357ms 21 days ago 151st Kacarott 🇦🇺 913 80 69ms 21 days ago 151st ovs-code 🇩🇪 913 80 101ms 21 days ago 153rd GolfingSuccess 🇬🇷 912 54 535ms 31 Oct 2025 153rd sean-niemann 🇺🇸 912 54 595ms 19 days ago 153rd CornerMercury 🇬🇧 912 54 428ms 32 hours ago 156th pardouin 🇫🇷 912 67 4,035ms 1 Nov 2025 156th bitsandbeyond 🇳🇱 912 67 4,371ms 2 Nov 2025 158th stefangimmillaro 911 55 82ms 31 Oct 2025 159th Shanethegamer 🇺🇸 911 66 1,247ms 3 Nov 2025 159th edsrzf 🇳🇿 911 66 1,434ms 19 days ago First Prev 81–160 of 1,105 Next Last