The Calendar hole will go live in approximately 7 hours. 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 149th GrayJoKing 🇦🇺 913 55 12ms 26 days ago 149th nwellnhof 🇩🇪 913 55 11ms 2 hours ago 163rd pardouin 🇫🇷 913 67 3,954ms 1 Nov 2025 163rd bitsandbeyond 🇳🇱 913 67 2,087ms 2 Nov 2025 165th pardouin 🇫🇷 913 77 357ms 29 Nov 2025 166th Kacarott 🇦🇺 913 80 69ms 29 Nov 2025 166th ovs-code 🇩🇪 913 80 69ms 29 Nov 2025 168th GolfingSuccess 🇬🇷 912 54 472ms 31 Oct 2025 168th sean-niemann 🇺🇸 912 54 444ms 1 Dec 2025 168th CornerMercury 🇬🇧 912 54 521ms 11 days ago 171st bitsandbeyond 🇳🇱 912 70 392ms 1 Nov 2025 171st namelessiw 912 70 407ms 2 Nov 2025 173rd Mukundan314 911 67 2ms 23 Nov 2025 173rd luuumine 🇫🇷 911 67 2ms 3 Dec 2025 173rd Alex-x90 🇺🇸 911 67 2ms 27 days ago 176th stefangimmillaro 911 75 41ms 31 Oct 2025 177th sean-niemann 🇺🇸 910 81 388ms 31 Oct 2025 177th KasperKivimaeki 🇫🇮 910 81 367ms 31 Oct 2025 177th ovs-code 🇩🇪 910 81 387ms 31 Oct 2025 177th rucin93 🇵🇱 910 81 383ms 31 Oct 2025 177th edsrzf 🇳🇿 910 81 357ms 1 Dec 2025 177th DialFrost 🇸🇬 910 81 363ms 2 Dec 2025 177th JayXon 🇺🇸 910 81 467ms 10 days ago 184th IanUtley 909 70 10ms 7 Nov 2025 184th annaproxy 909 70 10ms 2 Dec 2025 186th GolfingSuccess 🇬🇷 909 85 60ms 30 Oct 2025 186th rucin93 🇵🇱 909 85 60ms 30 Oct 2025 186th KasperKivimaeki 🇫🇮 909 85 61ms 31 Oct 2025 186th bitsandbeyond 🇳🇱 909 85 60ms 1 Nov 2025 186th ovs-code 🇩🇪 909 85 53ms 3 Nov 2025 186th pardouin 🇫🇷 909 85 56ms 29 Nov 2025 186th m-tkach 🇺🇦 909 85 52ms 1 Dec 2025 186th DialFrost 🇸🇬 909 85 62ms 2 Dec 2025 186th AdrienHache 🇫🇷 909 85 71ms 2 Dec 2025 186th xsot 🇸🇬 909 85 59ms 2 Dec 2025 196th kg583 🇺🇸 908 65 5ms 30 Oct 2025 196th edsrzf 🇳🇿 908 65 4ms 30 Oct 2025 198th pardouin 🇫🇷 908 91 251ms 29 Nov 2025 199th Natanaelel 🇸🇪 906 32 39ms 6 days ago 200th sean-niemann 🇺🇸 906 69 40ms 1 Dec 2025 201st ovs-code 🇩🇪 906 74 120ms 28 Nov 2025 202nd edsrzf 🇳🇿 905 70 4ms 31 Oct 2025 202nd MeWhenI 🇻🇦 905 70 4ms 24 Nov 2025 204th luuumine 🇫🇷 904 72 117ms 3 Dec 2025 204th emgordon154 904 72 132ms 10 days ago 206th emgordon154 903 67 5ms 23 Nov 2025 207th targrik 902 56 5ms 30 Oct 2025 208th bitsandbeyond 🇳🇱 902 66 100ms 2 Nov 2025 208th stefangimmillaro 902 66 124ms 4 Nov 2025 210th GrayJoKing 🇦🇺 902 79 9ms 26 days ago 211th emgordon154 902 88 103ms 27 days ago 212th DialFrost 🇸🇬 901 71 18ms 9 days ago 213th CaedenHarper 🇨🇦 901 78 416ms 29 Nov 2025 213th m-tkach 🇺🇦 901 78 657ms 1 Dec 2025 215th jkelly467 900 68 3,209ms 1 Dec 2025 216th MeWhenI 🇻🇦 899 53 3ms 23 Nov 2025 217th luuumine 🇫🇷 899 86 53ms 20 days ago 218th edsrzf 🇳🇿 898 59 2ms 31 Oct 2025 218th CaedenHarper 🇨🇦 898 59 2ms 30 Nov 2025 218th GrayJoKing 🇦🇺 898 59 2ms 27 days ago 221st CaedenHarper 🇨🇦 898 68 2ms 29 Nov 2025 221st m-tkach 🇺🇦 898 68 2ms 1 Dec 2025 223rd kg583 🇺🇸 898 75 10ms 30 Oct 2025 224th edsrzf 🇳🇿 898 78 3ms 1 Dec 2025 225th GolfingSuccess 🇬🇷 898 92 275ms 30 Oct 2025 225th stefangimmillaro 898 92 264ms 31 Oct 2025 225th edsrzf 🇳🇿 898 92 264ms 31 Oct 2025 225th KasperKivimaeki 🇫🇮 898 92 280ms 31 Oct 2025 229th saito-ta 🇯🇵 897 51 583ms 31 Oct 2025 229th MeWhenI 🇻🇦 897 51 542ms 29 Nov 2025 231st AlephSquirrel 897 56 11ms 30 Oct 2025 231st hallvabo 🇳🇴 897 56 11ms 30 Oct 2025 231st bizy-coder 897 56 13ms 26 Nov 2025 231st ndren 897 56 13ms 29 Nov 2025 231st zacjl 897 56 12ms 30 Nov 2025 231st klixel 🇨🇦 897 56 11ms 24 days ago 237th kg583 🇺🇸 896 55 453ms 30 Oct 2025 237th bitsandbeyond 🇳🇱 896 55 503ms 1 Nov 2025 237th Shanethegamer 🇺🇸 896 55 452ms 3 Nov 2025 237th m-tkach 🇺🇦 896 55 424ms 24 Nov 2025 First Prev 161–240 of 1,137 Next Last