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 albanian-laundromat 866 72 88ms 4 days ago 322nd emgordon154 866 85 626ms 4 hours ago 323rd KasperKivimaeki 🇫🇮 865 57 11ms 30 Oct 2025 323rd edsrzf 🇳🇿 865 57 12ms 31 Oct 2025 323rd Shanethegamer 🇺🇸 865 57 11ms 3 Nov 2025 323rd 4atj 865 57 12ms 5 Nov 2025 323rd MeWhenI 🇻🇦 865 57 11ms 21 Nov 2025 323rd CaedenHarper 🇨🇦 865 57 11ms 22 days ago 323rd blaztoma 🇱🇹 865 57 12ms 20 days ago 323rd FortuiteMan 🇫🇷 865 57 11ms 20 days ago 323rd KatieLG 🇬🇧 865 57 11ms 20 days ago 323rd ryyyn 🇺🇸 865 57 11ms 20 days ago 323rd DialFrost 🇸🇬 865 57 11ms 19 days ago 323rd fuzzylojik-golf 🇺🇸 865 57 11ms 18 days ago 323rd starfihs 865 57 11ms 17 days ago 323rd qpwoeirut 865 57 11ms 14 days ago 323rd dominikvytisk 865 57 11ms 12 days ago 338th MeWhenI 🇻🇦 865 79 57ms 27 days ago 339th edsrzf 🇳🇿 865 88 8ms 30 Oct 2025 339th sean-niemann 🇺🇸 865 88 11ms 3 days ago 341st dokutan 864 78 14ms 19 days ago 342nd bitsandbeyond 🇳🇱 863 55 512ms 1 Nov 2025 342nd Shanethegamer 🇺🇸 863 55 525ms 3 Nov 2025 342nd m-tkach 🇺🇦 863 55 475ms 26 days ago 342nd ovs-code 🇩🇪 863 55 415ms 22 days ago 342nd snoozingnewt 🇨🇦 863 55 368ms 22 days ago 342nd dokutan 863 55 366ms 19 days ago 348th sean-niemann 🇺🇸 862 66 215ms 19 days ago 349th arcpolaris 862 74 389ms 18 days ago 350th MeWhenI 🇻🇦 862 89 27ms 27 days ago 351st MeWhenI 🇻🇦 862 92 25ms 27 days ago 352nd Kacarott 🇦🇺 861 198 3ms 15 days ago 353rd MeWhenI 🇻🇦 861 222 13ms 27 days ago 354th bitsandbeyond 🇳🇱 860 52 51ms 1 Nov 2025 355th Shanethegamer 🇺🇸 860 68 4ms 4 Nov 2025 355th MeWhenI 🇻🇦 860 68 3ms 27 days ago 355th edsrzf 🇳🇿 860 68 3ms 20 days ago 355th DialFrost 🇸🇬 860 68 4ms 17 days ago 359th GolfingSuccess 🇬🇷 860 74 13ms 15 Nov 2025 360th pardouin 🇫🇷 860 85 69ms 19 days ago 361st vhoulbreque 🇫🇷 860 106 8ms 19 days ago 362nd iczelia 🇩🇪 859 71 2ms 19 days ago 363rd DialFrost 🇸🇬 859 96 287ms 3 hours ago 364th albanian-laundromat 859 119 402ms 30 Oct 2025 365th MeWhenI 🇻🇦 857 56 679ms 27 days ago 366th CaedenHarper 🇨🇦 857 90 469ms 22 days ago 366th BlankSpruce 857 90 74ms 14 days ago 368th rucin93 🇵🇱 853 51 124ms 31 Oct 2025 368th GolfingSuccess 🇬🇷 853 51 130ms 3 Nov 2025 370th bitsandbeyond 🇳🇱 853 90 26ms 2 Nov 2025 371st rucin93 🇵🇱 852 62 2ms 31 Oct 2025 371st dokutan 852 62 2ms 22 days ago 373rd bitsandbeyond 🇳🇱 852 93 27ms 1 Nov 2025 374th MeWhenI 🇻🇦 851 54 779ms 23 Nov 2025 374th emgordon154 851 54 1,048ms 22 hours ago 376th DialFrost 🇸🇬 851 57 2ms 32 hours ago 377th Shanethegamer 🇺🇸 850 52 9ms 4 Nov 2025 377th MeWhenI 🇻🇦 850 52 8ms 21 Nov 2025 377th CaedenHarper 🇨🇦 850 52 8ms 22 days ago 380th bitsandbeyond 🇳🇱 850 97 250ms 1 Nov 2025 381st CaedenHarper 🇨🇦 849 67 165ms 20 days ago 382nd MeWhenI 🇻🇦 849 70 101ms 23 Nov 2025 383rd dokutan 849 72 4,130ms 22 days ago 384th AlephSquirrel 848 56 444ms 30 Oct 2025 384th MeWhenI 🇻🇦 848 56 393ms 23 Nov 2025 384th CaedenHarper 🇨🇦 848 56 459ms 22 days ago 384th Kacarott 🇦🇺 848 56 482ms 20 days ago 388th Natanaelel 🇸🇪 847 46 33ms 8 Nov 2025 389th h3ra993huskp 🇯🇵 847 83 343ms 7 days ago 390th MeWhenI 🇻🇦 845 70 4ms 27 days ago 391st edsrzf 🇳🇿 845 93 185ms 20 days ago 392nd Natanaelel 🇸🇪 844 53 48ms 4 Nov 2025 393rd emgordon154 842 57 1,178ms 4 hours ago 394th blaztoma 🇱🇹 842 60 7ms 20 days ago 395th ovs-code 🇩🇪 838 76 12ms 3 Nov 2025 396th dokutan 838 92 80ms 26 days ago 397th Shanethegamer 🇺🇸 837 91 8ms 3 Nov 2025 397th MeWhenI 🇻🇦 837 91 8ms 23 Nov 2025 399th bitsandbeyond 🇳🇱 836 52 125ms 1 Nov 2025 400th Shanethegamer 🇺🇸 836 55 896ms 4 Nov 2025 First Prev 321–400 of 1,092 Next Last