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 321st targrik 867 51 9ms 30 Oct 2025 321st luuumine 🇫🇷 867 51 8ms 17 days ago 321st emgordon154 867 51 14ms 10 hours ago 324th bitsandbeyond 🇳🇱 867 53 798ms 1 Nov 2025 325th emgordon154 867 85 626ms 10 hours ago 326th KatieLG 🇬🇧 867 98 2ms 20 days ago 327th albanian-laundromat 866 72 88ms 4 days ago 328th KasperKivimaeki 🇫🇮 865 57 11ms 30 Oct 2025 328th edsrzf 🇳🇿 865 57 12ms 31 Oct 2025 328th Shanethegamer 🇺🇸 865 57 11ms 3 Nov 2025 328th 4atj 865 57 12ms 5 Nov 2025 328th MeWhenI 🇻🇦 865 57 11ms 21 Nov 2025 328th CaedenHarper 🇨🇦 865 57 11ms 22 days ago 328th blaztoma 🇱🇹 865 57 12ms 21 days ago 328th FortuiteMan 🇫🇷 865 57 11ms 20 days ago 328th KatieLG 🇬🇧 865 57 11ms 20 days ago 328th ryyyn 🇺🇸 865 57 11ms 20 days ago 328th DialFrost 🇸🇬 865 57 11ms 19 days ago 328th fuzzylojik-golf 🇺🇸 865 57 11ms 18 days ago 328th starfihs 865 57 11ms 17 days ago 328th qpwoeirut 865 57 11ms 14 days ago 328th dominikvytisk 865 57 11ms 12 days ago 343rd MeWhenI 🇻🇦 865 79 57ms 23 Nov 2025 344th edsrzf 🇳🇿 865 88 8ms 30 Oct 2025 344th sean-niemann 🇺🇸 865 88 11ms 3 days ago 346th dokutan 864 78 14ms 19 days ago 347th bitsandbeyond 🇳🇱 863 55 512ms 1 Nov 2025 347th Shanethegamer 🇺🇸 863 55 525ms 3 Nov 2025 347th m-tkach 🇺🇦 863 55 475ms 27 days ago 347th ovs-code 🇩🇪 863 55 415ms 22 days ago 347th snoozingnewt 🇨🇦 863 55 368ms 22 days ago 347th dokutan 863 55 366ms 19 days ago 353rd sean-niemann 🇺🇸 862 66 215ms 19 days ago 354th arcpolaris 862 74 389ms 18 days ago 355th MeWhenI 🇻🇦 862 89 27ms 27 days ago 356th MeWhenI 🇻🇦 862 92 25ms 27 days ago 357th Kacarott 🇦🇺 861 198 3ms 15 days ago 358th MeWhenI 🇻🇦 861 222 13ms 23 Nov 2025 359th bitsandbeyond 🇳🇱 860 52 51ms 1 Nov 2025 360th GolfingSuccess 🇬🇷 860 74 13ms 15 Nov 2025 361st pardouin 🇫🇷 860 85 69ms 19 days ago 362nd vhoulbreque 🇫🇷 860 106 8ms 19 days ago 363rd iczelia 🇩🇪 859 71 2ms 19 days ago 364th DialFrost 🇸🇬 859 96 287ms 9 hours ago 365th albanian-laundromat 859 119 402ms 30 Oct 2025 366th CaedenHarper 🇨🇦 858 90 469ms 22 days ago 366th BlankSpruce 858 90 74ms 14 days ago 368th MeWhenI 🇻🇦 857 56 679ms 27 days ago 369th rucin93 🇵🇱 853 51 124ms 31 Oct 2025 369th GolfingSuccess 🇬🇷 853 51 130ms 3 Nov 2025 371st bitsandbeyond 🇳🇱 853 90 26ms 2 Nov 2025 372nd rucin93 🇵🇱 852 62 2ms 31 Oct 2025 372nd dokutan 852 62 2ms 22 days ago 374th bitsandbeyond 🇳🇱 852 93 27ms 1 Nov 2025 375th MeWhenI 🇻🇦 851 54 779ms 23 Nov 2025 375th emgordon154 851 54 1,048ms 28 hours ago 377th DialFrost 🇸🇬 851 57 2ms 39 hours ago 378th MeWhenI 🇻🇦 851 70 101ms 23 Nov 2025 379th Shanethegamer 🇺🇸 850 52 9ms 4 Nov 2025 379th MeWhenI 🇻🇦 850 52 8ms 21 Nov 2025 379th CaedenHarper 🇨🇦 850 52 8ms 22 days ago 382nd bitsandbeyond 🇳🇱 850 97 250ms 1 Nov 2025 383rd CaedenHarper 🇨🇦 849 67 165ms 21 days ago 384th dokutan 849 72 4,130ms 22 days ago 385th AlephSquirrel 848 56 444ms 30 Oct 2025 385th MeWhenI 🇻🇦 848 56 393ms 23 Nov 2025 385th CaedenHarper 🇨🇦 848 56 459ms 22 days ago 385th Kacarott 🇦🇺 848 56 482ms 20 days ago 389th Natanaelel 🇸🇪 847 46 33ms 8 Nov 2025 390th h3ra993huskp 🇯🇵 847 83 343ms 7 days ago 391st MeWhenI 🇻🇦 845 70 4ms 27 days ago 392nd edsrzf 🇳🇿 845 93 185ms 20 days ago 393rd Natanaelel 🇸🇪 844 53 48ms 4 Nov 2025 394th emgordon154 842 57 1,178ms 10 hours ago 395th blaztoma 🇱🇹 842 60 7ms 20 days ago 396th dokutan 839 92 80ms 26 days ago 397th ovs-code 🇩🇪 838 76 12ms 3 Nov 2025 398th Shanethegamer 🇺🇸 837 68 4ms 4 Nov 2025 398th MeWhenI 🇻🇦 837 68 3ms 23 Nov 2025 398th edsrzf 🇳🇿 837 68 3ms 20 days ago First Prev 321–400 of 1,098 Next Last