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 dokutan 727 66 732ms 21 days ago 561st dokutan 727 66 253ms 18 days ago 563rd albanian-laundromat 727 98 9ms 19 days ago 564th Yewzir 🇧🇪 725 105 8ms 19 days ago 565th MeWhenI 🇻🇦 725 141 425ms 16 days ago 566th albanian-laundromat 724 61 9ms 26 days ago 567th bitsandbeyond 🇳🇱 721 73 88ms 2 Nov 2025 568th GolfingSuccess 🇬🇷 720 99 8ms 5 Nov 2025 569th AlephSquirrel 718 85 4,383ms 19 days ago 570th dokutan 718 163 1,613ms 14 days ago 571st cros107 🇦🇺 717 70 11ms 11 Nov 2025 571st madex 🇩🇪 717 70 11ms 18 days ago 571st CutSandstone 717 70 11ms 16 days ago 571st Lv0Sys 🇵🇱 717 70 11ms 7 days ago 575th HumanoidCPU 717 85 2ms 21 days ago 576th Yewzir 🇧🇪 717 94 11ms 19 days ago 577th albanian-laundromat 717 107 24ms 30 Oct 2025 577th HumanoidCPU 717 107 27ms 19 days ago 579th rucin93 🇵🇱 714 68 2ms 30 Oct 2025 580th emplv 🇱🇻 713 62 9ms 30 Oct 2025 581st YAJUE114514 713 94 110ms 9 days ago 582nd MeWhenI 🇻🇦 713 98 42ms 26 days ago 583rd BREMAUCY 🇫🇷 703 104 66ms 17 days ago 584th bitsandbeyond 🇳🇱 703 121 2ms 1 Nov 2025 585th dokutan 701 72 5ms 21 days ago 586th aksyristos 700 87 2ms 16 days ago 587th Yewzir 🇧🇪 699 102 14ms 19 days ago 588th albanian-laundromat 696 91 4ms 26 days ago 589th albanian-laundromat 695 111 2,451ms 27 days ago 590th TheZwierzLF 🇵🇱 693 71 464ms 7 days ago 591st zgialor-lab 692 88 6ms 3 days ago 592nd Lv0Sys 🇵🇱 691 64 10ms 7 days ago 593rd albanian-laundromat 691 86 99ms 27 days ago 594th HumanoidCPU 691 101 45ms 19 days ago 595th bitsandbeyond 🇳🇱 688 68 6ms 1 Nov 2025 596th anter69 🇭🇺 688 73 12ms 10 Nov 2025 596th ahmetdemirag 🇨🇾 688 73 12ms 21 days ago 596th Yewzir 🇧🇪 688 73 12ms 19 days ago 596th SirBogman 🇺🇸 688 73 13ms 18 days ago 600th albanian-laundromat 687 73 250ms 26 days ago 601st GolfingSuccess 🇬🇷 687 98 8ms 19 days ago 602nd HumanoidCPU 684 72 438ms 21 days ago 603rd BREMAUCY 🇫🇷 680 99 7ms 17 days ago 603rd Schmitt-Very-Cool 680 99 8ms 14 days ago 605th CaedenHarper 🇨🇦 679 117 116ms 20 days ago 606th Babafaba 678 74 11ms 21 Nov 2025 606th JOrE20 🇺🇸 678 74 11ms 21 Nov 2025 606th HumanoidCPU 678 74 11ms 21 days ago 606th TheZwierzLF 🇵🇱 678 74 13ms 20 days ago 606th BREMAUCY 🇫🇷 678 74 12ms 20 days ago 606th plcc0 678 74 12ms 19 days ago 606th btjones0 678 74 11ms 19 days ago 606th RandGuy 678 74 11ms 18 days ago 606th annaproxy 678 74 13ms 17 days ago 606th aksyristos 678 74 11ms 16 days ago 606th hippalectryon-0 678 74 11ms 13 days ago 606th SB-945 678 74 13ms 22 hours ago 618th albanian-laundromat 677 99 117ms 30 Oct 2025 619th MeWhenI 🇻🇦 677 104 17ms 27 days ago 620th Yewzir 🇧🇪 676 122 264ms 19 days ago 621st HumanoidCPU 675 88 113ms 20 days ago 622nd Yewzir 🇧🇪 674 73 505ms 19 days ago 623rd duckyluuk 🇳🇱 670 66 10ms 30 Oct 2025 623rd helbling 🇨🇭 670 66 10ms 7 days ago 625th Jacob385 669 105 361ms 10 Nov 2025 626th bitsandbeyond 🇳🇱 667 119 111ms 31 Oct 2025 627th BREMAUCY 🇫🇷 665 74 454ms 18 days ago 628th Yewzir 🇧🇪 664 92 3,884ms 19 days ago 629th Yewzir 🇧🇪 662 116 27ms 19 days ago 630th Ripick 661 76 12ms 14 Nov 2025 630th LostSyntax21 🇬🇧 661 76 11ms 19 days ago 630th scpchicken 🇵🇼 661 76 11ms 15 days ago 633rd GolfingSuccess 🇬🇷 660 49 3ms 4 Nov 2025 634th Shanethegamer 🇺🇸 657 102 116ms 2 Nov 2025 635th msbranicky 656 93 3,741ms 16 days ago 636th bitsandbeyond 🇳🇱 655 75 94ms 5 Nov 2025 637th mousetail 🇳🇱 652 77 11ms 27 days ago 638th GolfingSuccess 🇬🇷 651 157 450ms 13 days ago 639th bitsandbeyond 🇳🇱 650 98 9ms 16 Nov 2025 640th AutumnWind75 648 119 385ms 9 days ago First Prev 561–640 of 1,098 Next Last