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 241st ovs-code 🇩🇪 894 50 55ms 22 days ago 241st sean-niemann 🇺🇸 894 50 41ms 19 days ago 243rd sean-niemann 🇺🇸 892 86 26ms 19 days ago 244th sean-niemann 🇺🇸 891 89 36ms 19 days ago 245th lyphyser 889 45 54ms 16 days ago 246th CaedenHarper 🇨🇦 889 54 724ms 20 days ago 247th sean-niemann 🇺🇸 889 64 5ms 19 days ago 248th edsrzf 🇳🇿 889 67 101ms 31 Oct 2025 248th DialFrost 🇸🇬 889 67 104ms 19 days ago 250th Shanethegamer 🇺🇸 889 79 462ms 4 Nov 2025 250th MeWhenI 🇻🇦 889 79 435ms 21 Nov 2025 250th snoozingnewt 🇨🇦 889 79 439ms 22 days ago 253rd Shanethegamer 🇺🇸 888 83 362ms 3 Nov 2025 253rd MeWhenI 🇻🇦 888 83 361ms 23 Nov 2025 255th sean-niemann 🇺🇸 887 50 126ms 19 days ago 256th MeWhenI 🇻🇦 887 76 11ms 23 Nov 2025 257th MeWhenI 🇻🇦 887 79 7ms 27 days ago 257th Shanethegamer 🇺🇸 887 79 4ms 27 days ago 257th AlephSquirrel 887 79 4ms 20 days ago 260th Shanethegamer 🇺🇸 887 87 72ms 4 Nov 2025 260th snyderek 🇺🇸 887 87 80ms 19 days ago 260th fuzzylojik-golf 🇺🇸 887 87 82ms 18 days ago 260th emgordon154 887 87 69ms 18 hours ago 264th stefangimmillaro 886 57 5ms 31 Oct 2025 265th snoozingnewt 🇨🇦 886 69 4,346ms 20 days ago 266th Yax42 🇫🇷 886 72 391ms 21 days ago 266th fuzzylojik-golf 🇺🇸 886 72 411ms 18 days ago 268th edsrzf 🇳🇿 886 96 2ms 22 days ago 269th antimon2 🇯🇵 885 48 379ms 22 days ago 269th ovs-code 🇩🇪 885 48 389ms 22 days ago 271st KasperKivimaeki 🇫🇮 884 50 9ms 31 Oct 2025 271st DialFrost 🇸🇬 884 50 9ms 19 days ago 273rd fuzzylojik-golf 🇺🇸 884 69 2ms 18 days ago 273rd emgordon154 884 69 2ms 18 hours ago 275th dokutan 883 54 3ms 22 days ago 276th bitsandbeyond 🇳🇱 882 55 2ms 1 Nov 2025 277th edsrzf 🇳🇿 882 87 26ms 20 days ago 278th kg583 🇺🇸 881 57 11ms 30 Oct 2025 278th KasperKivimaeki 🇫🇮 881 57 11ms 30 Oct 2025 278th edsrzf 🇳🇿 881 57 12ms 31 Oct 2025 278th Shanethegamer 🇺🇸 881 57 11ms 3 Nov 2025 278th 4atj 881 57 12ms 5 Nov 2025 278th MeWhenI 🇻🇦 881 57 11ms 21 Nov 2025 278th CaedenHarper 🇨🇦 881 57 11ms 22 days ago 278th blaztoma 🇱🇹 881 57 12ms 21 days ago 278th FortuiteMan 🇫🇷 881 57 11ms 20 days ago 278th KatieLG 🇬🇧 881 57 11ms 20 days ago 278th ryyyn 🇺🇸 881 57 11ms 20 days ago 278th DialFrost 🇸🇬 881 57 11ms 19 days ago 278th fuzzylojik-golf 🇺🇸 881 57 11ms 18 days ago 278th luuumine 🇫🇷 881 57 12ms 18 days ago 278th starfihs 881 57 11ms 17 days ago 278th qpwoeirut 881 57 11ms 14 days ago 278th dominikvytisk 881 57 11ms 13 days ago 278th emgordon154 881 57 12ms 36 hours ago 296th bitsandbeyond 🇳🇱 881 60 2ms 2 Nov 2025 296th Shanethegamer 🇺🇸 881 60 2ms 3 Nov 2025 296th MeWhenI 🇻🇦 881 60 2ms 27 days ago 296th FlyingPenguin223 881 60 2ms 18 days ago 300th m-tkach 🇺🇦 881 90 32ms 20 days ago 300th edsrzf 🇳🇿 881 90 31ms 19 days ago 302nd edsrzf 🇳🇿 881 116 427ms 17 days ago 303rd bitsandbeyond 🇳🇱 880 57 81ms 5 Nov 2025 303rd MeWhenI 🇻🇦 880 57 84ms 23 Nov 2025 303rd snoozingnewt 🇨🇦 880 57 80ms 23 days ago 303rd CaedenHarper 🇨🇦 880 57 83ms 21 days ago 307th sean-niemann 🇺🇸 880 72 13ms 3 days ago 308th AlephSquirrel 879 56 444ms 30 Oct 2025 308th MeWhenI 🇻🇦 879 56 393ms 23 Nov 2025 308th CaedenHarper 🇨🇦 879 56 459ms 22 days ago 311th sean-niemann 🇺🇸 878 60 145ms 19 days ago 312th fuzzylojik-golf 🇺🇸 878 80 385ms 18 days ago 313th stefangimmillaro 877 51 53ms 30 Oct 2025 313th GrayJoKing 🇦🇺 877 51 38ms 17 days ago 315th snoozingnewt 🇨🇦 877 94 258ms 20 days ago 316th Shanethegamer 🇺🇸 876 68 119ms 4 Nov 2025 317th snoozingnewt 🇨🇦 876 78 39ms 9 days ago 318th bitsandbeyond 🇳🇱 876 104 7ms 2 Nov 2025 319th DialFrost 🇸🇬 875 76 16ms 19 hours ago 320th MeWhenI 🇻🇦 874 37 2ms 21 Nov 2025 First Prev 241–320 of 1,110 Next Last