The Calendar hole will go live in approximately 11 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 240th MeWhenI 🇻🇦 889 79 435ms 21 Nov 2025 240th snoozingnewt 🇨🇦 889 79 439ms 22 days ago 243rd sean-niemann 🇺🇸 887 49 137ms 18 days ago 244th edsrzf 🇳🇿 887 67 101ms 31 Oct 2025 244th DialFrost 🇸🇬 887 67 104ms 18 days ago 246th MeWhenI 🇻🇦 887 75 11ms 27 days ago 247th MeWhenI 🇻🇦 887 79 7ms 26 days ago 247th Shanethegamer 🇺🇸 887 79 4ms 26 days ago 247th AlephSquirrel 887 79 4ms 19 days ago 250th stefangimmillaro 886 57 5ms 31 Oct 2025 251st Yax42 🇫🇷 886 72 391ms 20 days ago 251st fuzzylojik-golf 🇺🇸 886 72 411ms 18 days ago 253rd Shanethegamer 🇺🇸 886 83 362ms 3 Nov 2025 253rd MeWhenI 🇻🇦 886 83 361ms 27 days ago 255th Shanethegamer 🇺🇸 886 87 72ms 4 Nov 2025 255th snyderek 🇺🇸 886 87 80ms 18 days ago 255th fuzzylojik-golf 🇺🇸 886 87 82ms 18 days ago 258th edsrzf 🇳🇿 886 96 2ms 21 days ago 259th snoozingnewt 🇨🇦 885 69 4,346ms 19 days ago 260th KasperKivimaeki 🇫🇮 884 50 9ms 31 Oct 2025 260th DialFrost 🇸🇬 884 50 9ms 18 days ago 262nd fuzzylojik-golf 🇺🇸 884 69 2ms 18 days ago 263rd bitsandbeyond 🇳🇱 882 55 2ms 1 Nov 2025 264th edsrzf 🇳🇿 882 87 26ms 19 days ago 265th dokutan 881 54 3ms 21 days ago 266th bitsandbeyond 🇳🇱 881 60 2ms 2 Nov 2025 266th Shanethegamer 🇺🇸 881 60 2ms 3 Nov 2025 266th MeWhenI 🇻🇦 881 60 2ms 26 days ago 266th FlyingPenguin223 881 60 2ms 17 days ago 270th m-tkach 🇺🇦 881 90 32ms 19 days ago 270th edsrzf 🇳🇿 881 90 31ms 18 days ago 272nd edsrzf 🇳🇿 881 116 427ms 16 days ago 273rd AlephSquirrel 880 56 11ms 30 Oct 2025 273rd bizy-coder 880 56 13ms 24 days ago 273rd zacjl 880 56 12ms 20 days ago 273rd klixel 🇨🇦 880 56 11ms 13 days ago 277th bitsandbeyond 🇳🇱 880 57 81ms 5 Nov 2025 277th MeWhenI 🇻🇦 880 57 84ms 27 days ago 277th snoozingnewt 🇨🇦 880 57 80ms 22 days ago 277th CaedenHarper 🇨🇦 880 57 83ms 20 days ago 281st GolfingSuccess 🇬🇷 879 54 535ms 31 Oct 2025 282nd sean-niemann 🇺🇸 878 60 145ms 18 days ago 283rd fuzzylojik-golf 🇺🇸 878 80 385ms 18 days ago 284th stefangimmillaro 877 51 53ms 30 Oct 2025 284th GrayJoKing 🇦🇺 877 51 38ms 17 days ago 286th snoozingnewt 🇨🇦 877 94 258ms 19 days ago 287th snoozingnewt 🇨🇦 876 78 39ms 9 days ago 288th emgordon154 876 88 58ms 13 hours ago 289th bitsandbeyond 🇳🇱 876 104 7ms 2 Nov 2025 290th MeWhenI 🇻🇦 874 37 2ms 21 Nov 2025 291st Shanethegamer 🇺🇸 874 68 119ms 4 Nov 2025 292nd Shanethegamer 🇺🇸 874 73 341ms 4 Nov 2025 292nd MeWhenI 🇻🇦 874 73 378ms 21 Nov 2025 292nd CaedenHarper 🇨🇦 874 73 393ms 21 days ago 295th DialFrost 🇸🇬 873 55 724ms 18 days ago 296th MeWhenI 🇻🇦 872 69 1,248ms 27 days ago 297th Shanethegamer 🇺🇸 872 70 4,400ms 4 Nov 2025 297th MeWhenI 🇻🇦 872 70 3,684ms 26 days ago 297th CaedenHarper 🇨🇦 872 70 4,095ms 20 days ago 297th blaztoma 🇱🇹 872 70 4,405ms 18 days ago 301st pardouin 🇫🇷 872 88 26ms 19 days ago 302nd Shanethegamer 🇺🇸 871 70 2ms 4 Nov 2025 302nd MeWhenI 🇻🇦 871 70 2ms 21 Nov 2025 302nd emgordon154 871 70 2ms 13 hours ago 305th dokutan 871 91 28ms 19 days ago 306th albanian-laundromat 869 220 12ms 15 days ago 307th bitsandbeyond 🇳🇱 868 72 41ms 1 Nov 2025 308th MeWhenI 🇻🇦 868 75 121ms 27 days ago 309th CaedenHarper 🇨🇦 868 95 290ms 16 days ago 310th targrik 867 51 9ms 30 Oct 2025 310th luuumine 🇫🇷 867 51 8ms 17 days ago 312th bitsandbeyond 🇳🇱 867 53 798ms 1 Nov 2025 313th MeWhenI 🇻🇦 867 89 74ms 21 Nov 2025 314th KatieLG 🇬🇧 867 98 2ms 19 days ago 315th albanian-laundromat 866 72 88ms 3 days ago 316th KasperKivimaeki 🇫🇮 865 57 11ms 30 Oct 2025 316th edsrzf 🇳🇿 865 57 12ms 31 Oct 2025 316th Shanethegamer 🇺🇸 865 57 11ms 3 Nov 2025 316th 4atj 865 57 12ms 5 Nov 2025 316th MeWhenI 🇻🇦 865 57 11ms 21 Nov 2025 First Prev 241–320 of 1,088 Next Last