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 chars. 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 Chars Time Submitted 1st GolfingSuccess 🇬🇷 1,000 29 46ms 30 Oct 2025 1st ovs-code 🇩🇪 1,000 29 61ms 1 Nov 2025 1st blaztoma 🇱🇹 1,000 29 67ms 19 days ago 1st emgordon154 1,000 29 39ms 18 days ago 5th ovs-code 🇩🇪 980 33 4ms 1 Nov 2025 5th zacjl 980 33 3ms 20 days ago 7th pardouin 🇫🇷 967 30 40ms 19 days ago 7th edsrzf 🇳🇿 967 30 42ms 15 days ago 9th khvdm 966 51 21ms 30 Oct 2025 9th pardouin 🇫🇷 966 51 15ms 1 Nov 2025 9th Seek64 🇩🇪 966 51 11ms 17 Nov 2025 9th sunleonid 966 51 11ms 22 days ago 9th lukegustafson 🇺🇸 966 51 12ms 20 days ago 9th JayXon 🇺🇸 966 51 34ms 31 hours ago 15th pardouin 🇫🇷 961 46 9ms 22 days ago 15th lukegustafson 🇺🇸 961 46 9ms 20 days ago 15th JayXon 🇺🇸 961 46 14ms 29 hours ago 18th pardouin 🇫🇷 952 47 61ms 1 Nov 2025 18th radarek 🇵🇱 952 47 45ms 19 days ago 18th JayXon 🇺🇸 952 47 37ms 24 hours ago 21st GrayJoKing 🇦🇺 951 39 4ms 15 days ago 22nd ovs-code 🇩🇪 950 41 34ms 22 days ago 23rd pardouin 🇫🇷 949 50 358ms 1 Nov 2025 23rd JayXon 🇺🇸 949 50 515ms 30 hours ago 25th CornerMercury 🇬🇧 948 52 12ms 37 hours ago 26th saito-ta 🇯🇵 945 45 2ms 31 Oct 2025 27th JayXon 🇺🇸 945 46 143ms 28 hours ago 28th sean-niemann 🇺🇸 944 45 354ms 7 hours ago 28th JayXon 🇺🇸 944 45 329ms 7 hours ago 30th edsrzf 🇳🇿 941 51 743ms 22 days ago 30th pardouin 🇫🇷 941 51 745ms 20 days ago 30th xsot 🇸🇬 941 51 673ms 18 days ago 33rd bitsandbeyond 🇳🇱 940 51 268ms 31 Oct 2025 33rd pardouin 🇫🇷 940 51 225ms 19 days ago 33rd sean-niemann 🇺🇸 940 51 280ms 3 days ago 36th sean-niemann 🇺🇸 938 46 137ms 2 days ago 37th JayXon 🇺🇸 938 49 941ms 24 hours ago 38th stefangimmillaro 938 65 2ms 31 Oct 2025 38th ovs-code 🇩🇪 938 65 2ms 31 Oct 2025 38th bitsandbeyond 🇳🇱 938 65 2ms 1 Nov 2025 38th GolfingSuccess 🇬🇷 938 65 2ms 3 Nov 2025 38th pardouin 🇫🇷 938 65 2ms 21 days ago 38th sean-niemann 🇺🇸 938 65 2ms 19 days ago 38th xsot 🇸🇬 938 65 2ms 18 days ago 38th lukegustafson 🇺🇸 938 65 2ms 18 days ago 38th rhdqor213 938 65 2ms 15 days ago 47th MeWhenI 🇻🇦 935 31 47ms 21 Nov 2025 48th saito-ta 🇯🇵 935 50 83ms 5 Nov 2025 49th rucin93 🇵🇱 935 51 3ms 30 Oct 2025 49th GolfingSuccess 🇬🇷 935 51 2ms 30 Oct 2025 49th sean-niemann 🇺🇸 935 51 3ms 30 Oct 2025 49th Mukundan314 935 51 3ms 27 days ago 49th CaedenHarper 🇨🇦 935 51 3ms 22 days ago 49th edsrzf 🇳🇿 935 51 3ms 20 days ago 49th JayXon 🇺🇸 935 51 4ms 8 hours ago 56th bitsandbeyond 🇳🇱 935 54 5ms 1 Nov 2025 56th GolfingSuccess 🇬🇷 935 54 6ms 3 Nov 2025 56th sean-niemann 🇺🇸 935 54 8ms 19 days ago 56th xsot 🇸🇬 935 54 15ms 18 days ago 60th canissimia 🇦🇶 934 49 565ms 17 Nov 2025 61st xsot 🇸🇬 933 52 2ms 19 days ago 61st sean-niemann 🇺🇸 933 52 2ms 19 days ago 63rd CornerMercury 🇬🇧 931 51 427ms 37 hours ago 64th kg583 🇺🇸 930 53 23ms 30 Oct 2025 64th hallvabo 🇳🇴 930 53 12ms 30 Oct 2025 64th ndren 930 53 12ms 21 days ago 64th sean-niemann 🇺🇸 930 53 14ms 19 days ago 68th sean-niemann 🇺🇸 928 54 83ms 19 days ago 69th 2bular 927 42 31ms 30 Oct 2025 70th JayXon 🇺🇸 927 53 99ms 23 hours ago 70th sean-niemann 🇺🇸 927 53 114ms 6 hours ago 72nd GolfingSuccess 🇬🇷 927 57 1ms 3 Nov 2025 72nd sean-niemann 🇺🇸 927 57 2ms 19 days ago 74th stefangimmillaro 926 66 4,516ms 31 Oct 2025 74th sean-niemann 🇺🇸 926 66 2,835ms 7 hours ago 74th JayXon 🇺🇸 926 66 3,107ms 7 hours ago 77th pardouin 🇫🇷 925 47 123ms 22 days ago 78th sean-niemann 🇺🇸 925 69 397ms 31 Oct 2025 78th stefangimmillaro 925 69 392ms 31 Oct 2025 78th GolfingSuccess 🇬🇷 925 69 389ms 31 Oct 2025 1–80 of 1,093 Next Last