The Calendar hole will go live in approximately 9 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 79th GolfingSuccess 🇬🇷 925 69 389ms 31 Oct 2025 79th AdrienHache 🇫🇷 925 69 405ms 1 Nov 2025 79th pardouin 🇫🇷 925 69 388ms 22 days ago 79th DialFrost 🇸🇬 925 69 413ms 20 days ago 79th KasperKivimaeki 🇫🇮 925 69 383ms 19 days ago 79th JayXon 🇺🇸 925 69 406ms 47 hours ago 87th rucin93 🇵🇱 925 76 388ms 30 Oct 2025 87th GolfingSuccess 🇬🇷 925 76 444ms 30 Oct 2025 87th stefangimmillaro 925 76 431ms 31 Oct 2025 87th sean-niemann 🇺🇸 925 76 479ms 31 Oct 2025 87th edsrzf 🇳🇿 925 76 553ms 31 Oct 2025 87th KasperKivimaeki 🇫🇮 925 76 492ms 1 Nov 2025 87th namelessiw 925 76 367ms 23 days ago 87th DialFrost 🇸🇬 925 76 361ms 20 days ago 87th JayXon 🇺🇸 925 76 526ms 46 hours ago 96th 2bular 924 35 4ms 1 Nov 2025 97th bitsandbeyond 🇳🇱 924 46 3ms 2 Nov 2025 97th sean-niemann 🇺🇸 924 46 3ms 20 days ago 97th xsot 🇸🇬 924 46 2ms 19 days ago 100th lukegustafson 🇺🇸 924 48 131ms 20 days ago 101st ovs-code 🇩🇪 924 57 66ms 15 days ago 102nd rucin93 🇵🇱 924 66 2ms 30 Oct 2025 102nd KasperKivimaeki 🇫🇮 924 66 2ms 30 Oct 2025 102nd saito-ta 🇯🇵 924 66 2ms 5 Nov 2025 102nd DialFrost 🇸🇬 924 66 2ms 20 days ago 102nd AdrienHache 🇫🇷 924 66 2ms 19 days ago 107th bitsandbeyond 🇳🇱 923 52 706ms 11 Nov 2025 107th GolfingSuccess 🇬🇷 923 52 743ms 21 days ago 107th sean-niemann 🇺🇸 923 52 762ms 20 days ago 110th JayXon 🇺🇸 923 59 127ms 45 mins ago 111th edsrzf 🇳🇿 923 73 9ms 21 days ago 112th stefangimmillaro 921 48 8ms 31 Oct 2025 112th rucin93 🇵🇱 921 48 9ms 31 Oct 2025 112th bitsandbeyond 🇳🇱 921 48 8ms 31 Oct 2025 112th GolfingSuccess 🇬🇷 921 48 8ms 3 Nov 2025 112th ovs-code 🇩🇪 921 48 8ms 23 days ago 112th sean-niemann 🇺🇸 921 48 9ms 20 days ago 112th xsot 🇸🇬 921 48 9ms 19 days ago 119th stefangimmillaro 919 50 750ms 30 Oct 2025 119th pardouin 🇫🇷 919 50 774ms 1 Nov 2025 119th sean-niemann 🇺🇸 919 50 813ms 20 days ago 122nd sean-niemann 🇺🇸 919 84 81ms 20 days ago 122nd JayXon 🇺🇸 919 84 76ms 23 hours ago 124th rucin93 🇵🇱 918 55 7ms 30 Oct 2025 125th JayXon 🇺🇸 918 62 3ms 23 hours ago 126th GolfingSuccess 🇬🇷 918 83 8ms 3 Nov 2025 127th rucin93 🇵🇱 917 71 116ms 30 Oct 2025 127th kumavale 917 71 124ms 31 Oct 2025 127th stefangimmillaro 917 71 119ms 31 Oct 2025 127th CaedenHarper 🇨🇦 917 71 121ms 22 days ago 127th edsrzf 🇳🇿 917 71 115ms 21 days ago 127th sean-niemann 🇺🇸 917 71 119ms 20 days ago 127th DialFrost 🇸🇬 917 71 119ms 20 days ago 127th JayXon 🇺🇸 917 71 125ms 2 days ago 135th sean-niemann 🇺🇸 916 65 117ms 20 days ago 135th JayXon 🇺🇸 916 65 103ms 23 hours ago 137th JayXon 🇺🇸 916 90 283ms 2 days ago 137th sean-niemann 🇺🇸 916 90 280ms 28 hours ago 139th JayXon 🇺🇸 915 64 1,579ms 10 mins ago 140th Shanethegamer 🇺🇸 914 84 27ms 2 Nov 2025 140th m-tkach 🇺🇦 914 84 27ms 20 days ago 142nd stefangimmillaro 913 55 11ms 30 Oct 2025 142nd bricknellj 913 55 12ms 30 Oct 2025 142nd ovs-code 🇩🇪 913 55 13ms 31 Oct 2025 142nd bitsandbeyond 🇳🇱 913 55 11ms 1 Nov 2025 142nd GolfingSuccess 🇬🇷 913 55 13ms 3 Nov 2025 142nd Mukundan314 913 55 11ms 15 Nov 2025 142nd m-tkach 🇺🇦 913 55 11ms 27 days ago 142nd sean-niemann 🇺🇸 913 55 15ms 20 days ago 142nd xsot 🇸🇬 913 55 11ms 19 days ago 142nd jared-hughes 913 55 11ms 18 days ago 142nd duckyluuk 🇳🇱 913 55 12ms 17 days ago 142nd GrayJoKing 🇦🇺 913 55 12ms 16 days ago 154th pardouin 🇫🇷 913 77 357ms 22 days ago 155th Kacarott 🇦🇺 913 80 69ms 22 days ago 155th ovs-code 🇩🇪 913 80 101ms 22 days ago 157th GolfingSuccess 🇬🇷 912 54 535ms 31 Oct 2025 157th sean-niemann 🇺🇸 912 54 595ms 20 days ago 157th CornerMercury 🇬🇧 912 54 428ms 2 days ago 160th pardouin 🇫🇷 912 67 4,035ms 1 Nov 2025 First Prev 81–160 of 1,113 Next Last