The Calendar hole will go live in approximately 5 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 m-tkach 🇺🇦 895 95 2ms 25 days ago 242nd ovs-code 🇩🇪 894 50 37ms 27 days ago 242nd sean-niemann 🇺🇸 894 50 43ms 24 days ago 244th sean-niemann 🇺🇸 894 86 26ms 24 days ago 245th MeWhenI 🇻🇦 891 75 11ms 23 Nov 2025 246th sean-niemann 🇺🇸 891 89 36ms 24 days ago 247th CaedenHarper 🇨🇦 889 54 724ms 26 days ago 248th sean-niemann 🇺🇸 889 64 5ms 24 days ago 249th edsrzf 🇳🇿 889 67 101ms 31 Oct 2025 249th DialFrost 🇸🇬 889 67 104ms 24 days ago 251st Shanethegamer 🇺🇸 889 79 462ms 4 Nov 2025 251st MeWhenI 🇻🇦 889 79 435ms 21 Nov 2025 251st snoozingnewt 🇨🇦 889 79 439ms 28 Nov 2025 254th Shanethegamer 🇺🇸 888 66 1,247ms 3 Nov 2025 254th edsrzf 🇳🇿 888 66 1,434ms 25 days ago 256th Shanethegamer 🇺🇸 888 83 362ms 3 Nov 2025 256th MeWhenI 🇻🇦 888 83 361ms 23 Nov 2025 258th Shanethegamer 🇺🇸 888 87 64ms 4 Nov 2025 258th snyderek 🇺🇸 888 87 54ms 24 days ago 258th fuzzylojik-golf 🇺🇸 888 87 65ms 24 days ago 258th emgordon154 888 87 65ms 5 days ago 262nd sean-niemann 🇺🇸 887 49 137ms 25 days ago 263rd snoozingnewt 🇨🇦 887 69 3,087ms 25 days ago 264th MeWhenI 🇻🇦 887 79 7ms 24 Nov 2025 264th Shanethegamer 🇺🇸 887 79 4ms 24 Nov 2025 264th AlephSquirrel 887 79 4ms 26 days ago 267th stefangimmillaro 886 57 5ms 31 Oct 2025 268th Yax42 🇫🇷 886 72 391ms 26 days ago 268th fuzzylojik-golf 🇺🇸 886 72 376ms 24 days ago 270th edsrzf 🇳🇿 886 96 2ms 28 Nov 2025 271st antimon2 🇯🇵 885 48 321ms 27 days ago 271st ovs-code 🇩🇪 885 48 333ms 27 days ago 273rd KasperKivimaeki 🇫🇮 885 50 9ms 31 Oct 2025 273rd DialFrost 🇸🇬 885 50 9ms 24 days ago 275th fuzzylojik-golf 🇺🇸 885 69 2ms 24 days ago 275th emgordon154 885 69 2ms 5 days ago 277th dokutan 883 54 3ms 28 Nov 2025 278th bitsandbeyond 🇳🇱 883 60 2ms 2 Nov 2025 278th Shanethegamer 🇺🇸 883 60 2ms 3 Nov 2025 278th MeWhenI 🇻🇦 883 60 2ms 24 Nov 2025 278th FlyingPenguin223 883 60 2ms 23 days ago 282nd edsrzf 🇳🇿 883 87 26ms 25 days ago 283rd bitsandbeyond 🇳🇱 882 55 2ms 1 Nov 2025 284th bitsandbeyond 🇳🇱 881 57 80ms 5 Nov 2025 284th MeWhenI 🇻🇦 881 57 84ms 23 Nov 2025 284th snoozingnewt 🇨🇦 881 57 80ms 28 Nov 2025 284th CaedenHarper 🇨🇦 881 57 83ms 26 days ago 288th m-tkach 🇺🇦 881 90 32ms 25 days ago 288th edsrzf 🇳🇿 881 90 31ms 25 days ago 290th edsrzf 🇳🇿 881 116 427ms 22 days ago 291st GolfingSuccess 🇬🇷 880 54 535ms 31 Oct 2025 292nd AlephSquirrel 880 56 11ms 30 Oct 2025 292nd bizy-coder 880 56 13ms 26 Nov 2025 292nd zacjl 880 56 12ms 26 days ago 292nd klixel 🇨🇦 880 56 11ms 19 days ago 296th sean-niemann 🇺🇸 878 60 145ms 24 days ago 297th Shanethegamer 🇺🇸 878 62 291ms 3 Nov 2025 297th MeWhenI 🇻🇦 878 62 120ms 24 Nov 2025 297th edsrzf 🇳🇿 878 62 181ms 25 days ago 300th fuzzylojik-golf 🇺🇸 878 80 385ms 24 days ago 301st snoozingnewt 🇨🇦 878 94 258ms 25 days ago 302nd stefangimmillaro 877 51 37ms 30 Oct 2025 302nd GrayJoKing 🇦🇺 877 51 59ms 23 days ago 304th Shanethegamer 🇺🇸 876 68 119ms 4 Nov 2025 305th snoozingnewt 🇨🇦 876 78 39ms 15 days ago 306th bitsandbeyond 🇳🇱 876 104 7ms 2 Nov 2025 307th MeWhenI 🇻🇦 874 37 2ms 21 Nov 2025 308th sean-niemann 🇺🇸 874 67 1,225ms 24 days ago 309th Shanethegamer 🇺🇸 874 70 3,753ms 4 Nov 2025 309th MeWhenI 🇻🇦 874 70 3,079ms 24 Nov 2025 309th CaedenHarper 🇨🇦 874 70 3,814ms 26 days ago 309th blaztoma 🇱🇹 874 70 4,405ms 24 days ago 309th Natanaelel 🇸🇪 874 70 2,283ms 27 hours ago 314th Shanethegamer 🇺🇸 874 73 341ms 4 Nov 2025 314th MeWhenI 🇻🇦 874 73 378ms 21 Nov 2025 314th CaedenHarper 🇨🇦 874 73 393ms 27 days ago 317th DialFrost 🇸🇬 873 55 724ms 24 days ago 318th pardouin 🇫🇷 873 88 26ms 25 days ago 319th Shanethegamer 🇺🇸 872 70 2ms 4 Nov 2025 319th MeWhenI 🇻🇦 872 70 2ms 21 Nov 2025 First Prev 241–320 of 1,119 Next Last