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 240th MeWhenI 🇻🇦 889 79 435ms 21 Nov 2025 240th snoozingnewt 🇨🇦 889 79 439ms 22 days ago 243rd sean-niemann 🇺🇸 887 49 137ms 19 days ago 244th edsrzf 🇳🇿 887 67 101ms 31 Oct 2025 244th DialFrost 🇸🇬 887 67 104ms 19 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 20 days ago 250th stefangimmillaro 886 57 5ms 31 Oct 2025 251st snoozingnewt 🇨🇦 886 69 4,346ms 20 days ago 252nd Yax42 🇫🇷 886 72 391ms 21 days ago 252nd fuzzylojik-golf 🇺🇸 886 72 411ms 18 days ago 254th Shanethegamer 🇺🇸 886 83 362ms 3 Nov 2025 254th MeWhenI 🇻🇦 886 83 361ms 23 Nov 2025 256th Shanethegamer 🇺🇸 886 87 72ms 4 Nov 2025 256th snyderek 🇺🇸 886 87 80ms 18 days ago 256th fuzzylojik-golf 🇺🇸 886 87 82ms 18 days ago 256th emgordon154 886 87 69ms 5 hours ago 260th edsrzf 🇳🇿 886 96 2ms 22 days ago 261st antimon2 🇯🇵 885 48 379ms 22 days ago 261st ovs-code 🇩🇪 885 48 389ms 21 days ago 263rd KasperKivimaeki 🇫🇮 884 50 9ms 31 Oct 2025 263rd DialFrost 🇸🇬 884 50 9ms 19 days ago 265th fuzzylojik-golf 🇺🇸 884 69 2ms 18 days ago 265th emgordon154 884 69 2ms 5 hours ago 267th dokutan 883 54 3ms 22 days ago 268th bitsandbeyond 🇳🇱 882 55 2ms 1 Nov 2025 269th edsrzf 🇳🇿 882 87 26ms 19 days ago 270th bitsandbeyond 🇳🇱 881 60 2ms 2 Nov 2025 270th Shanethegamer 🇺🇸 881 60 2ms 3 Nov 2025 270th MeWhenI 🇻🇦 881 60 2ms 27 days ago 270th FlyingPenguin223 881 60 2ms 17 days ago 274th m-tkach 🇺🇦 881 90 32ms 19 days ago 274th edsrzf 🇳🇿 881 90 31ms 19 days ago 276th edsrzf 🇳🇿 881 116 427ms 17 days ago 277th AlephSquirrel 880 56 11ms 30 Oct 2025 277th bizy-coder 880 56 13ms 24 days ago 277th zacjl 880 56 12ms 20 days ago 277th klixel 🇨🇦 880 56 11ms 13 days ago 281st bitsandbeyond 🇳🇱 880 57 81ms 5 Nov 2025 281st MeWhenI 🇻🇦 880 57 84ms 27 days ago 281st snoozingnewt 🇨🇦 880 57 80ms 22 days ago 281st CaedenHarper 🇨🇦 880 57 83ms 21 days ago 285th GolfingSuccess 🇬🇷 879 54 535ms 31 Oct 2025 286th sean-niemann 🇺🇸 878 60 145ms 19 days ago 287th fuzzylojik-golf 🇺🇸 878 80 385ms 18 days ago 288th stefangimmillaro 877 51 53ms 30 Oct 2025 288th GrayJoKing 🇦🇺 877 51 38ms 17 days ago 290th snoozingnewt 🇨🇦 877 94 258ms 20 days ago 291st snoozingnewt 🇨🇦 876 78 39ms 9 days ago 292nd bitsandbeyond 🇳🇱 876 104 7ms 2 Nov 2025 293rd DialFrost 🇸🇬 875 76 16ms 6 hours ago 294th MeWhenI 🇻🇦 874 37 2ms 21 Nov 2025 295th Shanethegamer 🇺🇸 874 68 119ms 4 Nov 2025 296th Shanethegamer 🇺🇸 874 73 341ms 4 Nov 2025 296th MeWhenI 🇻🇦 874 73 378ms 21 Nov 2025 296th CaedenHarper 🇨🇦 874 73 393ms 22 days ago 299th DialFrost 🇸🇬 873 55 724ms 19 days ago 300th Shanethegamer 🇺🇸 873 70 4,400ms 4 Nov 2025 300th MeWhenI 🇻🇦 873 70 3,684ms 27 days ago 300th CaedenHarper 🇨🇦 873 70 4,095ms 21 days ago 300th blaztoma 🇱🇹 873 70 4,405ms 19 days ago 304th MeWhenI 🇻🇦 872 69 1,248ms 27 days ago 305th pardouin 🇫🇷 872 88 26ms 19 days ago 306th Shanethegamer 🇺🇸 871 70 2ms 4 Nov 2025 306th MeWhenI 🇻🇦 871 70 2ms 21 Nov 2025 308th dokutan 871 91 28ms 19 days ago 309th JayXon 🇺🇸 870 119 1,909ms 7 hours ago 310th albanian-laundromat 869 220 12ms 16 days ago 311th bitsandbeyond 🇳🇱 868 72 41ms 1 Nov 2025 312th MeWhenI 🇻🇦 868 75 121ms 27 days ago 313th CaedenHarper 🇨🇦 868 95 290ms 16 days ago 314th Shanethegamer 🇺🇸 867 49 420ms 3 Nov 2025 315th targrik 867 51 9ms 30 Oct 2025 315th luuumine 🇫🇷 867 51 8ms 17 days ago 315th emgordon154 867 51 14ms 5 hours ago 318th bitsandbeyond 🇳🇱 867 53 798ms 1 Nov 2025 319th MeWhenI 🇻🇦 867 89 74ms 21 Nov 2025 320th KatieLG 🇬🇧 867 98 2ms 20 days ago First Prev 241–320 of 1,092 Next Last