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 560th Shanethegamer 🇺🇸 741 138 432ms 18 days ago 562nd blaztoma 🇱🇹 740 91 10ms 20 days ago 563rd MeWhenI 🇻🇦 739 115 2ms 23 Nov 2025 564th iczelia 🇩🇪 737 60 9ms 20 days ago 565th HumanoidCPU 736 74 129ms 23 days ago 565th Ripick 736 74 137ms 22 days ago 567th dokutan 733 61 38ms 23 days ago 567th KatieLG 🇬🇧 733 61 36ms 21 days ago 569th albanian-laundromat 733 87 400ms 21 days ago 570th MeWhenI 🇻🇦 732 92 13ms 23 Nov 2025 571st vhoulbreque 🇫🇷 730 64 4ms 21 days ago 572nd albanian-laundromat 730 101 149ms 23 Nov 2025 573rd MeWhenI 🇻🇦 729 52 5ms 23 Nov 2025 574th dokutan 727 66 732ms 23 days ago 574th dokutan 727 66 253ms 20 days ago 576th albanian-laundromat 727 98 9ms 21 days ago 577th albanian-laundromat 726 75 128ms 26 days ago 578th albanian-laundromat 725 61 9ms 24 Nov 2025 579th Yewzir 🇧🇪 725 105 8ms 21 days ago 580th MeWhenI 🇻🇦 725 141 425ms 18 days ago 581st bitsandbeyond 🇳🇱 721 73 88ms 2 Nov 2025 582nd GolfingSuccess 🇬🇷 720 99 8ms 5 Nov 2025 583rd AlephSquirrel 719 85 4,383ms 21 days ago 584th HumanoidCPU 718 85 2ms 23 days ago 585th cros107 🇦🇺 717 70 11ms 11 Nov 2025 585th madex 🇩🇪 717 70 11ms 20 days ago 585th CutSandstone 717 70 11ms 18 days ago 585th Lv0Sys 🇵🇱 717 70 11ms 9 days ago 589th Yewzir 🇧🇪 717 94 11ms 21 days ago 590th albanian-laundromat 717 107 24ms 30 Oct 2025 590th HumanoidCPU 717 107 27ms 21 days ago 592nd rucin93 🇵🇱 714 68 2ms 30 Oct 2025 593rd emplv 🇱🇻 713 62 9ms 30 Oct 2025 594th YAJUE114514 713 94 110ms 12 days ago 595th MeWhenI 🇻🇦 713 98 42ms 24 Nov 2025 596th BREMAUCY 🇫🇷 703 104 66ms 20 days ago 597th bitsandbeyond 🇳🇱 703 121 2ms 1 Nov 2025 598th dokutan 701 72 5ms 23 days ago 599th aksyristos 701 87 2ms 18 days ago 600th Yewzir 🇧🇪 699 102 14ms 21 days ago 601st albanian-laundromat 696 91 4ms 24 Nov 2025 602nd albanian-laundromat 696 111 2,451ms 23 Nov 2025 603rd TheZwierzLF 🇵🇱 693 71 464ms 9 days ago 604th zgialor-lab 693 88 6ms 5 days ago 605th albanian-laundromat 692 86 99ms 23 Nov 2025 606th Lv0Sys 🇵🇱 691 64 10ms 9 days ago 607th HumanoidCPU 691 101 45ms 22 days ago 608th bitsandbeyond 🇳🇱 688 68 6ms 1 Nov 2025 609th anter69 🇭🇺 688 73 12ms 10 Nov 2025 609th albanian-laundromat 688 73 250ms 24 Nov 2025 609th ahmetdemirag 🇨🇾 688 73 12ms 23 days ago 609th Yewzir 🇧🇪 688 73 12ms 21 days ago 609th SirBogman 🇺🇸 688 73 13ms 20 days ago 614th GolfingSuccess 🇬🇷 687 98 8ms 21 days ago 615th HumanoidCPU 684 72 438ms 23 days ago 616th BREMAUCY 🇫🇷 680 99 7ms 20 days ago 616th Schmitt-Very-Cool 680 99 8ms 16 days ago 618th CaedenHarper 🇨🇦 679 117 116ms 22 days ago 619th Babafaba 678 74 11ms 21 Nov 2025 619th JOrE20 🇺🇸 678 74 11ms 21 Nov 2025 619th HumanoidCPU 678 74 11ms 23 days ago 619th TheZwierzLF 🇵🇱 678 74 13ms 22 days ago 619th BREMAUCY 🇫🇷 678 74 12ms 22 days ago 619th plcc0 678 74 12ms 21 days ago 619th btjones0 678 74 11ms 21 days ago 619th RandGuy 678 74 11ms 20 days ago 619th annaproxy 678 74 13ms 20 days ago 619th aksyristos 678 74 11ms 18 days ago 619th hippalectryon-0 678 74 11ms 15 days ago 619th SB-945 678 74 13ms 3 days ago 631st HumanoidCPU 677 88 113ms 22 days ago 632nd albanian-laundromat 677 99 117ms 30 Oct 2025 633rd Yewzir 🇧🇪 676 122 264ms 21 days ago 634th Yewzir 🇧🇪 674 73 505ms 21 days ago 635th duckyluuk 🇳🇱 670 66 10ms 30 Oct 2025 635th helbling 🇨🇭 670 66 10ms 9 days ago 637th Jacob385 669 105 361ms 10 Nov 2025 638th bitsandbeyond 🇳🇱 667 119 111ms 31 Oct 2025 639th BREMAUCY 🇫🇷 665 74 454ms 20 days ago 640th Yewzir 🇧🇪 664 92 3,884ms 21 days ago First Prev 561–640 of 1,114 Next Last