The Calendar hole will go live in approximately 11 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 🇻🇦 729 52 5ms 27 days ago 562nd albanian-laundromat 728 101 149ms 27 days ago 563rd dokutan 727 66 732ms 22 days ago 563rd dokutan 727 66 253ms 19 days ago 565th albanian-laundromat 727 98 9ms 20 days ago 566th Yewzir 🇧🇪 725 105 8ms 20 days ago 567th MeWhenI 🇻🇦 725 141 425ms 16 days ago 568th albanian-laundromat 724 61 9ms 26 days ago 569th bitsandbeyond 🇳🇱 721 73 88ms 2 Nov 2025 570th GolfingSuccess 🇬🇷 720 99 8ms 5 Nov 2025 571st AlephSquirrel 718 85 4,383ms 19 days ago 572nd dokutan 718 163 1,613ms 14 days ago 573rd cros107 🇦🇺 717 70 11ms 11 Nov 2025 573rd madex 🇩🇪 717 70 11ms 18 days ago 573rd CutSandstone 717 70 11ms 16 days ago 573rd Lv0Sys 🇵🇱 717 70 11ms 8 days ago 577th HumanoidCPU 717 85 2ms 21 days ago 578th Yewzir 🇧🇪 717 94 11ms 20 days ago 579th albanian-laundromat 717 107 24ms 30 Oct 2025 579th HumanoidCPU 717 107 27ms 19 days ago 581st rucin93 🇵🇱 714 68 2ms 30 Oct 2025 582nd emplv 🇱🇻 713 62 9ms 30 Oct 2025 583rd YAJUE114514 713 94 110ms 10 days ago 584th MeWhenI 🇻🇦 713 98 42ms 26 days ago 585th BREMAUCY 🇫🇷 703 104 66ms 18 days ago 586th bitsandbeyond 🇳🇱 703 121 2ms 1 Nov 2025 587th dokutan 701 72 5ms 22 days ago 588th aksyristos 701 87 2ms 17 days ago 589th Yewzir 🇧🇪 699 102 14ms 20 days ago 590th albanian-laundromat 696 91 4ms 26 days ago 591st albanian-laundromat 695 111 2,451ms 27 days ago 592nd TheZwierzLF 🇵🇱 693 71 464ms 8 days ago 593rd zgialor-lab 693 88 6ms 3 days ago 594th Lv0Sys 🇵🇱 691 64 10ms 8 days ago 595th albanian-laundromat 691 86 99ms 27 days ago 596th HumanoidCPU 691 101 45ms 20 days ago 597th bitsandbeyond 🇳🇱 688 68 6ms 1 Nov 2025 598th anter69 🇭🇺 688 73 12ms 10 Nov 2025 598th ahmetdemirag 🇨🇾 688 73 12ms 22 days ago 598th Yewzir 🇧🇪 688 73 12ms 20 days ago 598th SirBogman 🇺🇸 688 73 13ms 19 days ago 602nd albanian-laundromat 687 73 250ms 26 days ago 603rd GolfingSuccess 🇬🇷 687 98 8ms 20 days ago 604th HumanoidCPU 684 72 438ms 21 days ago 605th BREMAUCY 🇫🇷 680 99 7ms 18 days ago 605th Schmitt-Very-Cool 680 99 8ms 14 days ago 607th CaedenHarper 🇨🇦 679 117 116ms 20 days ago 608th Babafaba 678 74 11ms 21 Nov 2025 608th JOrE20 🇺🇸 678 74 11ms 21 Nov 2025 608th HumanoidCPU 678 74 11ms 21 days ago 608th TheZwierzLF 🇵🇱 678 74 13ms 20 days ago 608th BREMAUCY 🇫🇷 678 74 12ms 20 days ago 608th plcc0 678 74 12ms 20 days ago 608th btjones0 678 74 11ms 19 days ago 608th RandGuy 678 74 11ms 18 days ago 608th annaproxy 678 74 13ms 18 days ago 608th aksyristos 678 74 11ms 17 days ago 608th hippalectryon-0 678 74 11ms 13 days ago 608th SB-945 678 74 13ms 32 hours ago 620th albanian-laundromat 677 99 117ms 30 Oct 2025 621st MeWhenI 🇻🇦 677 104 17ms 27 days ago 622nd Yewzir 🇧🇪 676 122 264ms 20 days ago 623rd HumanoidCPU 675 88 113ms 20 days ago 624th Yewzir 🇧🇪 674 73 505ms 20 days ago 625th duckyluuk 🇳🇱 670 66 10ms 30 Oct 2025 625th helbling 🇨🇭 670 66 10ms 7 days ago 627th Jacob385 669 105 361ms 10 Nov 2025 628th bitsandbeyond 🇳🇱 667 119 111ms 31 Oct 2025 629th BREMAUCY 🇫🇷 665 74 454ms 19 days ago 630th Yewzir 🇧🇪 664 92 3,884ms 20 days ago 631st Yewzir 🇧🇪 662 116 27ms 20 days ago 632nd Ripick 661 76 12ms 14 Nov 2025 632nd LostSyntax21 🇬🇧 661 76 11ms 19 days ago 632nd scpchicken 🇵🇼 661 76 11ms 15 days ago 635th GolfingSuccess 🇬🇷 660 49 3ms 4 Nov 2025 636th Shanethegamer 🇺🇸 657 102 116ms 2 Nov 2025 637th msbranicky 656 93 3,741ms 16 days ago 638th bitsandbeyond 🇳🇱 655 75 94ms 5 Nov 2025 639th mousetail 🇳🇱 652 77 11ms 27 days ago 640th GolfingSuccess 🇬🇷 651 157 450ms 13 days ago First Prev 561–640 of 1,100 Next Last