The Calendar hole will go live in approximately 12 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 cros107 🇦🇺 717 70 11ms 11 Nov 2025 561st madex 🇩🇪 717 70 11ms 17 days ago 561st CutSandstone 717 70 11ms 15 days ago 561st Lv0Sys 🇵🇱 717 70 11ms 7 days ago 565th HumanoidCPU 717 85 2ms 20 days ago 566th Yewzir 🇧🇪 717 94 11ms 19 days ago 567th albanian-laundromat 717 107 24ms 30 Oct 2025 567th HumanoidCPU 717 107 27ms 18 days ago 569th rucin93 🇵🇱 714 68 2ms 30 Oct 2025 570th emplv 🇱🇻 713 62 9ms 30 Oct 2025 571st YAJUE114514 713 94 110ms 9 days ago 572nd MeWhenI 🇻🇦 713 98 42ms 25 days ago 573rd BREMAUCY 🇫🇷 703 104 66ms 17 days ago 574th bitsandbeyond 🇳🇱 703 121 2ms 1 Nov 2025 575th dokutan 701 72 5ms 21 days ago 576th aksyristos 700 87 2ms 16 days ago 577th Yewzir 🇧🇪 699 102 14ms 19 days ago 578th albanian-laundromat 696 91 4ms 25 days ago 579th albanian-laundromat 695 111 2,451ms 26 days ago 580th TheZwierzLF 🇵🇱 693 71 464ms 7 days ago 581st zgialor-lab 692 88 6ms 2 days ago 582nd albanian-laundromat 691 86 99ms 26 days ago 583rd HumanoidCPU 691 101 45ms 19 days ago 584th Lv0Sys 🇵🇱 690 64 10ms 7 days ago 585th bitsandbeyond 🇳🇱 688 68 6ms 1 Nov 2025 586th anter69 🇭🇺 688 73 12ms 10 Nov 2025 586th ahmetdemirag 🇨🇾 688 73 12ms 21 days ago 586th Yewzir 🇧🇪 688 73 12ms 19 days ago 586th SirBogman 🇺🇸 688 73 13ms 17 days ago 590th albanian-laundromat 687 73 250ms 25 days ago 591st GolfingSuccess 🇬🇷 687 98 8ms 19 days ago 592nd HumanoidCPU 683 72 438ms 20 days ago 593rd Yewzir 🇧🇪 682 122 264ms 19 days ago 594th BREMAUCY 🇫🇷 680 99 7ms 17 days ago 594th Schmitt-Very-Cool 680 99 8ms 13 days ago 596th CaedenHarper 🇨🇦 679 117 116ms 19 days ago 597th Babafaba 678 74 11ms 21 Nov 2025 597th JOrE20 🇺🇸 678 74 11ms 21 Nov 2025 597th HumanoidCPU 678 74 11ms 20 days ago 597th TheZwierzLF 🇵🇱 678 74 13ms 19 days ago 597th BREMAUCY 🇫🇷 678 74 12ms 19 days ago 597th plcc0 678 74 12ms 19 days ago 597th btjones0 678 74 11ms 18 days ago 597th RandGuy 678 74 11ms 17 days ago 597th annaproxy 678 74 13ms 17 days ago 597th aksyristos 678 74 11ms 16 days ago 597th hippalectryon-0 678 74 11ms 12 days ago 597th SB-945 678 74 13ms 8 hours ago 609th albanian-laundromat 677 99 117ms 30 Oct 2025 610th bitsandbeyond 🇳🇱 676 75 94ms 5 Nov 2025 611th HumanoidCPU 675 88 113ms 19 days ago 612th Yewzir 🇧🇪 674 73 505ms 19 days ago 613th duckyluuk 🇳🇱 669 66 10ms 30 Oct 2025 613th helbling 🇨🇭 669 66 10ms 6 days ago 615th Jacob385 669 105 361ms 10 Nov 2025 616th bitsandbeyond 🇳🇱 667 119 111ms 31 Oct 2025 617th BREMAUCY 🇫🇷 665 74 454ms 18 days ago 618th Yewzir 🇧🇪 664 92 3,884ms 19 days ago 619th Yewzir 🇧🇪 662 116 27ms 19 days ago 620th GolfingSuccess 🇬🇷 660 49 3ms 4 Nov 2025 621st Ripick 660 76 12ms 14 Nov 2025 621st LostSyntax21 🇬🇧 660 76 11ms 18 days ago 621st scpchicken 🇵🇼 660 76 11ms 14 days ago 624th Shanethegamer 🇺🇸 657 102 116ms 2 Nov 2025 625th msbranicky 656 93 3,741ms 15 days ago 626th mousetail 🇳🇱 652 77 11ms 26 days ago 627th GolfingSuccess 🇬🇷 651 157 450ms 12 days ago 628th bitsandbeyond 🇳🇱 650 98 9ms 16 Nov 2025 629th AutumnWind75 648 119 385ms 9 days ago 630th HumanoidCPU 647 181 2,256ms 19 days ago 631st AlephSquirrel 641 105 8ms 18 days ago 632nd HumanoidCPU 637 111 110ms 19 days ago 633rd GolfingSuccess 🇬🇷 635 72 1ms 30 Oct 2025 634th msbranicky 635 79 11ms 23 days ago 635th msbranicky 635 131 269ms 15 days ago 636th HumanoidCPU 632 111 370ms 20 days ago 637th HumanoidCPU 632 122 72ms 20 days ago 638th JOrE20 🇺🇸 631 70 8ms 21 days ago 639th BREMAUCY 🇫🇷 629 97 4,001ms 16 days ago 640th prestosilver 🇺🇸 628 97 2ms 16 days ago First Prev 561–640 of 1,085 Next Last