The Calendar hole will go live in approximately 9 days. Why not try and solve it ahead of time?
Tower of Hanoi in all languages in bytes. 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 Bytes Time Submitted 561st MeWhenI 🇻🇦 739 115 2ms 23 Nov 2025 562nd iczelia 🇩🇪 737 60 9ms 20 days ago 563rd HumanoidCPU 736 74 129ms 22 days ago 563rd Ripick 736 74 137ms 21 days ago 565th dokutan 733 61 38ms 23 days ago 565th KatieLG 🇬🇧 733 61 36ms 21 days ago 567th albanian-laundromat 733 87 400ms 21 days ago 568th MeWhenI 🇻🇦 732 92 13ms 23 Nov 2025 569th vhoulbreque 🇫🇷 730 64 4ms 21 days ago 570th albanian-laundromat 730 101 149ms 23 Nov 2025 571st MeWhenI 🇻🇦 729 52 5ms 23 Nov 2025 572nd dokutan 727 66 732ms 23 days ago 572nd dokutan 727 66 253ms 20 days ago 574th albanian-laundromat 727 98 9ms 21 days ago 575th albanian-laundromat 726 75 128ms 26 days ago 576th albanian-laundromat 725 61 9ms 24 Nov 2025 577th Yewzir 🇧🇪 725 105 8ms 21 days ago 578th MeWhenI 🇻🇦 725 141 425ms 18 days ago 579th bitsandbeyond 🇳🇱 721 73 88ms 2 Nov 2025 580th GolfingSuccess 🇬🇷 720 99 8ms 5 Nov 2025 581st AlephSquirrel 719 85 4,383ms 21 days ago 582nd HumanoidCPU 718 85 2ms 23 days ago 583rd cros107 🇦🇺 717 70 11ms 11 Nov 2025 583rd madex 🇩🇪 717 70 11ms 20 days ago 583rd CutSandstone 717 70 11ms 18 days ago 583rd Lv0Sys 🇵🇱 717 70 11ms 9 days ago 587th Yewzir 🇧🇪 717 94 11ms 21 days ago 588th albanian-laundromat 717 107 24ms 30 Oct 2025 588th HumanoidCPU 717 107 27ms 20 days ago 590th rucin93 🇵🇱 714 68 2ms 30 Oct 2025 591st emplv 🇱🇻 713 62 9ms 30 Oct 2025 592nd YAJUE114514 713 94 110ms 11 days ago 593rd MeWhenI 🇻🇦 713 98 42ms 27 days ago 594th BREMAUCY 🇫🇷 703 104 66ms 19 days ago 595th bitsandbeyond 🇳🇱 703 121 2ms 1 Nov 2025 596th dokutan 701 72 5ms 23 days ago 597th aksyristos 701 87 2ms 18 days ago 598th Yewzir 🇧🇪 699 102 14ms 21 days ago 599th albanian-laundromat 696 91 4ms 24 Nov 2025 600th albanian-laundromat 696 111 2,451ms 23 Nov 2025 601st TheZwierzLF 🇵🇱 693 71 464ms 9 days ago 602nd zgialor-lab 693 88 6ms 5 days ago 603rd albanian-laundromat 692 86 99ms 23 Nov 2025 604th Lv0Sys 🇵🇱 691 64 10ms 9 days ago 605th HumanoidCPU 691 101 45ms 21 days ago 606th bitsandbeyond 🇳🇱 688 68 6ms 1 Nov 2025 607th anter69 🇭🇺 688 73 12ms 10 Nov 2025 607th ahmetdemirag 🇨🇾 688 73 12ms 23 days ago 607th Yewzir 🇧🇪 688 73 12ms 21 days ago 607th SirBogman 🇺🇸 688 73 13ms 20 days ago 611th albanian-laundromat 687 73 250ms 24 Nov 2025 612th GolfingSuccess 🇬🇷 687 98 8ms 21 days ago 613th HumanoidCPU 684 72 438ms 23 days ago 614th BREMAUCY 🇫🇷 680 99 7ms 19 days ago 614th Schmitt-Very-Cool 680 99 8ms 16 days ago 616th CaedenHarper 🇨🇦 679 117 116ms 22 days ago 617th Babafaba 678 74 11ms 21 Nov 2025 617th JOrE20 🇺🇸 678 74 11ms 21 Nov 2025 617th HumanoidCPU 678 74 11ms 23 days ago 617th TheZwierzLF 🇵🇱 678 74 13ms 22 days ago 617th BREMAUCY 🇫🇷 678 74 12ms 21 days ago 617th plcc0 678 74 12ms 21 days ago 617th btjones0 678 74 11ms 21 days ago 617th RandGuy 678 74 11ms 19 days ago 617th annaproxy 678 74 13ms 19 days ago 617th aksyristos 678 74 11ms 18 days ago 617th hippalectryon-0 678 74 11ms 15 days ago 617th SB-945 678 74 13ms 2 days ago 629th HumanoidCPU 677 88 113ms 22 days ago 630th albanian-laundromat 677 99 117ms 30 Oct 2025 631st Yewzir 🇧🇪 676 122 264ms 21 days ago 632nd Yewzir 🇧🇪 674 73 505ms 21 days ago 633rd duckyluuk 🇳🇱 670 66 10ms 30 Oct 2025 633rd helbling 🇨🇭 670 66 10ms 9 days ago 635th Jacob385 669 105 361ms 10 Nov 2025 636th bitsandbeyond 🇳🇱 667 119 111ms 31 Oct 2025 637th BREMAUCY 🇫🇷 665 74 454ms 20 days ago 638th Yewzir 🇧🇪 664 92 3,884ms 21 days ago 639th Yewzir 🇧🇪 662 116 27ms 21 days ago 640th Ripick 661 76 12ms 14 Nov 2025 First Prev 561–640 of 1,112 Next Last