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 241st CaedenHarper 🇨🇦 889 54 724ms 20 days ago 242nd edsrzf 🇳🇿 889 67 101ms 31 Oct 2025 242nd DialFrost 🇸🇬 889 67 104ms 19 days ago 244th Shanethegamer 🇺🇸 889 79 462ms 4 Nov 2025 244th MeWhenI 🇻🇦 889 79 435ms 21 Nov 2025 244th snoozingnewt 🇨🇦 889 79 439ms 22 days ago 247th sean-niemann 🇺🇸 887 49 137ms 19 days ago 248th MeWhenI 🇻🇦 887 75 11ms 27 days ago 249th MeWhenI 🇻🇦 887 79 7ms 27 days ago 249th Shanethegamer 🇺🇸 887 79 4ms 27 days ago 249th AlephSquirrel 887 79 4ms 20 days ago 252nd stefangimmillaro 886 57 5ms 31 Oct 2025 253rd snoozingnewt 🇨🇦 886 69 4,346ms 20 days ago 254th Yax42 🇫🇷 886 72 391ms 21 days ago 254th fuzzylojik-golf 🇺🇸 886 72 411ms 18 days ago 256th Shanethegamer 🇺🇸 886 83 362ms 3 Nov 2025 256th MeWhenI 🇻🇦 886 83 361ms 23 Nov 2025 258th Shanethegamer 🇺🇸 886 87 72ms 4 Nov 2025 258th snyderek 🇺🇸 886 87 80ms 18 days ago 258th fuzzylojik-golf 🇺🇸 886 87 82ms 18 days ago 258th emgordon154 886 87 69ms 6 hours ago 262nd edsrzf 🇳🇿 886 96 2ms 22 days ago 263rd antimon2 🇯🇵 885 48 379ms 22 days ago 263rd ovs-code 🇩🇪 885 48 389ms 21 days ago 265th KasperKivimaeki 🇫🇮 884 50 9ms 31 Oct 2025 265th DialFrost 🇸🇬 884 50 9ms 19 days ago 267th fuzzylojik-golf 🇺🇸 884 69 2ms 18 days ago 267th emgordon154 884 69 2ms 6 hours ago 269th dokutan 883 54 3ms 22 days ago 270th bitsandbeyond 🇳🇱 882 55 2ms 1 Nov 2025 271st edsrzf 🇳🇿 882 87 26ms 19 days ago 272nd bitsandbeyond 🇳🇱 881 60 2ms 2 Nov 2025 272nd Shanethegamer 🇺🇸 881 60 2ms 3 Nov 2025 272nd MeWhenI 🇻🇦 881 60 2ms 27 days ago 272nd FlyingPenguin223 881 60 2ms 17 days ago 276th m-tkach 🇺🇦 881 90 32ms 19 days ago 276th edsrzf 🇳🇿 881 90 31ms 19 days ago 278th edsrzf 🇳🇿 881 116 427ms 17 days ago 279th AlephSquirrel 880 56 11ms 30 Oct 2025 279th bizy-coder 880 56 13ms 24 days ago 279th zacjl 880 56 12ms 20 days ago 279th klixel 🇨🇦 880 56 11ms 13 days ago 283rd bitsandbeyond 🇳🇱 880 57 81ms 5 Nov 2025 283rd MeWhenI 🇻🇦 880 57 84ms 27 days ago 283rd snoozingnewt 🇨🇦 880 57 80ms 22 days ago 283rd CaedenHarper 🇨🇦 880 57 83ms 21 days ago 287th GolfingSuccess 🇬🇷 879 54 535ms 31 Oct 2025 288th sean-niemann 🇺🇸 878 60 145ms 19 days ago 289th fuzzylojik-golf 🇺🇸 878 80 385ms 18 days ago 290th stefangimmillaro 877 51 53ms 30 Oct 2025 290th GrayJoKing 🇦🇺 877 51 38ms 17 days ago 292nd snoozingnewt 🇨🇦 877 94 258ms 20 days ago 293rd Shanethegamer 🇺🇸 876 68 119ms 4 Nov 2025 294th snoozingnewt 🇨🇦 876 78 39ms 9 days ago 295th bitsandbeyond 🇳🇱 876 104 7ms 2 Nov 2025 296th DialFrost 🇸🇬 875 76 16ms 7 hours ago 297th MeWhenI 🇻🇦 874 37 2ms 21 Nov 2025 298th Shanethegamer 🇺🇸 874 73 341ms 4 Nov 2025 298th MeWhenI 🇻🇦 874 73 378ms 21 Nov 2025 298th CaedenHarper 🇨🇦 874 73 393ms 22 days ago 301st DialFrost 🇸🇬 873 55 724ms 19 days ago 302nd Shanethegamer 🇺🇸 873 70 4,400ms 4 Nov 2025 302nd MeWhenI 🇻🇦 873 70 3,684ms 27 days ago 302nd CaedenHarper 🇨🇦 873 70 4,095ms 21 days ago 302nd blaztoma 🇱🇹 873 70 4,405ms 19 days ago 306th MeWhenI 🇻🇦 872 69 1,248ms 27 days ago 307th pardouin 🇫🇷 872 88 26ms 19 days ago 308th Shanethegamer 🇺🇸 871 70 2ms 4 Nov 2025 308th MeWhenI 🇻🇦 871 70 2ms 21 Nov 2025 310th dokutan 871 91 28ms 19 days ago 311th JayXon 🇺🇸 870 119 1,909ms 7 hours ago 312th albanian-laundromat 869 220 12ms 16 days ago 313th bitsandbeyond 🇳🇱 868 72 41ms 1 Nov 2025 314th MeWhenI 🇻🇦 868 75 121ms 27 days ago 315th CaedenHarper 🇨🇦 868 95 290ms 16 days ago 316th Shanethegamer 🇺🇸 867 49 420ms 3 Nov 2025 317th targrik 867 51 9ms 30 Oct 2025 317th luuumine 🇫🇷 867 51 8ms 17 days ago 317th emgordon154 867 51 14ms 6 hours ago 320th bitsandbeyond 🇳🇱 867 53 798ms 1 Nov 2025 First Prev 241–320 of 1,094 Next Last