The Calendar hole will go live in approximately 6 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 🇻🇦 742 71 87ms 23 Nov 2025 561st snoozingnewt 🇨🇦 742 71 91ms 26 days ago 563rd HumanoidCPU 742 107 106ms 25 days ago 564th emgordon154 741 138 455ms 24 Nov 2025 564th Shanethegamer 🇺🇸 741 138 432ms 21 days ago 566th blaztoma 🇱🇹 740 91 10ms 23 days ago 567th MeWhenI 🇻🇦 739 115 2ms 23 Nov 2025 568th iczelia 🇩🇪 737 60 9ms 23 days ago 569th HumanoidCPU 736 74 129ms 26 days ago 569th Ripick 736 74 137ms 25 days ago 571st dokutan 733 61 38ms 26 days ago 571st KatieLG 🇬🇧 733 61 35ms 24 days ago 573rd albanian-laundromat 733 87 400ms 24 days ago 574th MeWhenI 🇻🇦 732 92 13ms 23 Nov 2025 575th vhoulbreque 🇫🇷 730 64 4ms 24 days ago 576th albanian-laundromat 730 101 149ms 23 Nov 2025 577th MeWhenI 🇻🇦 729 52 5ms 23 Nov 2025 578th dokutan 727 66 732ms 27 days ago 578th dokutan 727 66 253ms 24 days ago 580th albanian-laundromat 727 98 9ms 24 days ago 581st albanian-laundromat 726 75 128ms 25 Nov 2025 582nd albanian-laundromat 725 61 9ms 24 Nov 2025 583rd Yewzir 🇧🇪 725 105 8ms 25 days ago 584th MeWhenI 🇻🇦 725 141 425ms 21 days ago 585th bitsandbeyond 🇳🇱 721 73 88ms 2 Nov 2025 586th GolfingSuccess 🇬🇷 720 99 8ms 5 Nov 2025 587th AlephSquirrel 719 85 3,030ms 24 days ago 588th HumanoidCPU 718 85 2ms 26 days ago 589th albanian-laundromat 718 107 24ms 30 Oct 2025 589th HumanoidCPU 718 107 27ms 24 days ago 589th Natanaelel 🇸🇪 718 107 24ms 4 hours ago 592nd cros107 🇦🇺 717 70 11ms 11 Nov 2025 592nd madex 🇩🇪 717 70 11ms 23 days ago 592nd CutSandstone 717 70 11ms 21 days ago 595th Yewzir 🇧🇪 717 94 11ms 25 days ago 596th rucin93 🇵🇱 714 68 2ms 30 Oct 2025 597th emplv 🇱🇻 713 62 9ms 30 Oct 2025 598th YAJUE114514 713 94 110ms 15 days ago 599th MeWhenI 🇻🇦 713 98 42ms 24 Nov 2025 600th BREMAUCY 🇫🇷 703 104 66ms 23 days ago 601st bitsandbeyond 🇳🇱 703 121 2ms 1 Nov 2025 602nd dokutan 701 72 5ms 27 days ago 603rd aksyristos 701 87 2ms 22 days ago 604th Yewzir 🇧🇪 699 102 10ms 25 days ago 605th albanian-laundromat 696 91 4ms 24 Nov 2025 606th albanian-laundromat 696 111 2,079ms 23 Nov 2025 607th TheZwierzLF 🇵🇱 694 71 464ms 13 days ago 608th zgialor-lab 693 88 2ms 8 days ago 609th albanian-laundromat 692 86 99ms 23 Nov 2025 610th Lv0Sys 🇵🇱 691 64 10ms 12 days ago 611th HumanoidCPU 691 101 45ms 25 days ago 612th bitsandbeyond 🇳🇱 688 68 4ms 1 Nov 2025 613th anter69 🇭🇺 688 73 12ms 10 Nov 2025 613th albanian-laundromat 688 73 250ms 24 Nov 2025 613th ahmetdemirag 🇨🇾 688 73 12ms 26 days ago 613th Yewzir 🇧🇪 688 73 12ms 25 days ago 613th SirBogman 🇺🇸 688 73 13ms 23 days ago 618th GolfingSuccess 🇬🇷 687 98 8ms 25 days ago 619th HumanoidCPU 684 72 438ms 26 days ago 620th BREMAUCY 🇫🇷 680 99 7ms 23 days ago 620th Schmitt-Very-Cool 680 99 8ms 19 days ago 622nd Babafaba 679 74 11ms 21 Nov 2025 622nd JOrE20 🇺🇸 679 74 11ms 21 Nov 2025 622nd HumanoidCPU 679 74 11ms 26 days ago 622nd TheZwierzLF 🇵🇱 679 74 13ms 25 days ago 622nd BREMAUCY 🇫🇷 679 74 12ms 25 days ago 622nd plcc0 679 74 12ms 24 days ago 622nd btjones0 679 74 11ms 24 days ago 622nd RandGuy 679 74 11ms 23 days ago 622nd annaproxy 679 74 13ms 23 days ago 622nd aksyristos 679 74 11ms 22 days ago 622nd hippalectryon-0 679 74 11ms 18 days ago 622nd SB-945 679 74 12ms 6 days ago 622nd te-chnical 679 74 12ms 2 days ago 635th CaedenHarper 🇨🇦 679 117 116ms 25 days ago 636th HumanoidCPU 677 88 111ms 25 days ago 637th albanian-laundromat 677 99 117ms 30 Oct 2025 638th Yewzir 🇧🇪 677 122 264ms 25 days ago 639th Yewzir 🇧🇪 675 73 505ms 25 days ago 640th duckyluuk 🇳🇱 670 66 10ms 30 Oct 2025 First Prev 561–640 of 1,125 Next Last