The Calendar hole will go live in approximately 8 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 641st Yewzir 🇧🇪 664 92 3,884ms 22 days ago 642nd Yewzir 🇧🇪 662 116 27ms 22 days ago 643rd Ripick 661 76 12ms 14 Nov 2025 643rd LostSyntax21 🇬🇧 661 76 11ms 22 days ago 643rd scpchicken 🇵🇼 661 76 11ms 18 days ago 646th GolfingSuccess 🇬🇷 660 49 3ms 4 Nov 2025 647th CaedenHarper 🇨🇦 660 157 2,347ms 23 days ago 648th msbranicky 657 93 3,741ms 19 days ago 649th Shanethegamer 🇺🇸 657 102 116ms 2 Nov 2025 650th bitsandbeyond 🇳🇱 655 75 94ms 5 Nov 2025 651st mousetail 🇳🇱 652 77 11ms 23 Nov 2025 652nd GolfingSuccess 🇬🇷 651 157 450ms 16 days ago 653rd bitsandbeyond 🇳🇱 650 98 9ms 16 Nov 2025 654th AutumnWind75 649 119 385ms 12 days ago 655th Bmrl7 644 78 11ms 3 days ago 656th AlephSquirrel 641 105 8ms 22 days ago 657th HumanoidCPU 637 111 110ms 23 days ago 658th msbranicky 636 79 11ms 27 days ago 659th GolfingSuccess 🇬🇷 635 72 1ms 30 Oct 2025 660th dokutan 635 163 1,613ms 17 days ago 661st HumanoidCPU 633 111 370ms 24 days ago 662nd HumanoidCPU 633 122 72ms 24 days ago 663rd JOrE20 🇺🇸 632 70 8ms 24 days ago 664th BREMAUCY 🇫🇷 630 97 4,001ms 20 days ago 665th msbranicky 630 131 269ms 19 days ago 666th stackofbears 629 62 39ms 14 hours ago 667th prestosilver 🇺🇸 629 97 2ms 19 days ago 668th aksyristos 628 123 56ms 19 days ago 669th rucin93 🇵🇱 625 64 51ms 30 Oct 2025 670th msbranicky 624 108 8ms 19 days ago 671st alexsave 623 71 9ms 22 days ago 672nd msbranicky 623 79 448ms 19 days ago 673rd HumanoidCPU 620 85 90ms 23 days ago 674th HumanoidCPU 620 105 111ms 24 days ago 675th albanian-laundromat 616 82 4ms 27 days ago 676th albanian-laundromat 616 99 2ms 23 days ago 677th MeWhenI 🇻🇦 615 76 7ms 23 Nov 2025 678th IISResetMe 615 78 278ms 23 days ago 679th MeWhenI 🇻🇦 615 104 17ms 23 Nov 2025 680th HumanoidCPU 614 72 9ms 24 days ago 680th olleicua 🇺🇸 614 72 10ms 15 days ago 682nd JOrE20 🇺🇸 613 102 43ms 24 days ago 683rd tomh1012 613 104 415ms 21 days ago 684th themoonisacheese 612 82 11ms 13 days ago 685th HumanoidCPU 609 121 407ms 23 days ago 686th HumanoidCPU 608 105 404ms 24 days ago 687th AlephSquirrel 607 79 271ms 22 days ago 688th RDShah 605 83 11ms 21 days ago 689th MeWhenI 🇻🇦 605 100 6ms 24 Nov 2025 690th anter69 🇭🇺 604 74 33ms 17 days ago 690th D-MOVE 🇵🇭 604 74 46ms 13 days ago 692nd MeWhenI 🇻🇦 604 111 125ms 24 Nov 2025 693rd Schmitt-Very-Cool 600 127 10ms 17 days ago 694th HumanoidCPU 599 74 130ms 24 days ago 695th CaedenHarper 🇨🇦 599 88 107ms 23 days ago 696th Nicronmil 598 74 9ms 12 days ago 696th two-bad 🇬🇧 598 74 10ms 5 days ago 698th CatsAreFluffy 597 67 51ms 30 Oct 2025 699th anter69 🇭🇺 597 77 809ms 17 days ago 700th olleicua 🇺🇸 596 75 54ms 15 days ago 701st MeWhenI 🇻🇦 595 74 117ms 24 Nov 2025 702nd HumanoidCPU 595 107 9ms 24 days ago 703rd CaedenHarper 🇨🇦 592 81 240ms 23 days ago 704th zgialor-lab 591 85 28ms 6 days ago 705th KatieLG 🇬🇧 589 108 8ms 22 days ago 706th Yewzir 🇧🇪 585 82 285ms 22 days ago 707th aksyristos 585 83 2ms 19 days ago 708th BREMAUCY 🇫🇷 585 109 461ms 22 days ago 709th BREMAUCY 🇫🇷 585 141 260ms 20 days ago 710th Schmitt-Very-Cool 584 86 10ms 18 days ago 711th dokutan 582 73 228ms 24 days ago 712th Protothor 582 76 9ms 19 days ago 713th SwordF-Official 575 92 2ms 16 Nov 2025 713th HumanoidCPU 575 92 2ms 24 days ago 715th Maashau 575 106 2ms 22 days ago 716th BREMAUCY 🇫🇷 573 78 38ms 21 days ago 717th MeWhenI 🇻🇦 573 111 16ms 24 days ago 718th HumanoidCPU 572 181 2,256ms 23 days ago 719th Schmitt-Very-Cool 571 128 69ms 17 days ago 720th bitsandbeyond 🇳🇱 563 71 51ms 7 Nov 2025 First Prev 641–720 of 1,118 Next Last