The Calendar hole will go live in approximately 5 days. Why not try and solve it ahead of time?
Tower of Hanoi in all languages in chars. 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 Chars Time Submitted 634th hippalectryon-0 666 74 11ms 19 days ago 634th te-chnical 666 74 12ms 3 days ago 643rd Yewzir 🇧🇪 665 92 2,990ms 26 days ago 644th Yewzir 🇧🇪 662 116 27ms 26 days ago 645th GolfingSuccess 🇬🇷 660 49 3ms 4 Nov 2025 646th bitsandbeyond 🇳🇱 660 119 111ms 31 Oct 2025 647th CaedenHarper 🇨🇦 660 157 2,347ms 26 days ago 648th msbranicky 658 93 2,878ms 22 days ago 649th LostSyntax21 🇬🇧 657 75 20ms 25 days ago 650th Shanethegamer 🇺🇸 657 102 116ms 2 Nov 2025 651st MeWhenI 🇻🇦 656 95 78ms 23 Nov 2025 652nd bitsandbeyond 🇳🇱 655 75 94ms 5 Nov 2025 653rd GolfingSuccess 🇬🇷 651 157 447ms 19 days ago 654th albanian-laundromat 650 91 4ms 24 Nov 2025 655th bitsandbeyond 🇳🇱 650 98 9ms 16 Nov 2025 656th Ripick 649 76 12ms 14 Nov 2025 656th scpchicken 🇵🇼 649 76 11ms 21 days ago 658th AutumnWind75 649 119 385ms 16 days ago 659th BREMAUCY 🇫🇷 642 74 454ms 25 days ago 660th AlephSquirrel 641 105 8ms 25 days ago 661st mousetail 🇳🇱 640 77 11ms 23 Nov 2025 662nd GolfingSuccess 🇬🇷 635 72 1ms 30 Oct 2025 663rd dokutan 635 163 1,613ms 20 days ago 664th HumanoidCPU 633 111 370ms 27 days ago 665th HumanoidCPU 633 122 58ms 27 days ago 666th JOrE20 🇺🇸 632 70 8ms 28 Nov 2025 667th Bmrl7 632 78 11ms 6 days ago 668th BREMAUCY 🇫🇷 631 97 3,199ms 23 days ago 669th msbranicky 630 131 269ms 22 days ago 670th stackofbears 629 62 39ms 3 days ago 671st prestosilver 🇺🇸 629 97 2ms 23 days ago 672nd aksyristos 628 123 54ms 22 days ago 673rd msbranicky 624 79 11ms 26 Nov 2025 674th msbranicky 624 108 8ms 22 days ago 675th alexsave 623 71 9ms 26 days ago 676th HumanoidCPU 620 85 90ms 27 days ago 677th HumanoidCPU 620 105 111ms 27 days ago 678th albanian-laundromat 616 82 4ms 25 Nov 2025 679th albanian-laundromat 616 99 2ms 26 days ago 680th MeWhenI 🇻🇦 615 76 5ms 23 Nov 2025 681st IISResetMe 615 78 273ms 26 days ago 682nd MeWhenI 🇻🇦 615 104 17ms 23 Nov 2025 683rd HumanoidCPU 614 72 9ms 27 days ago 683rd olleicua 🇺🇸 614 72 10ms 18 days ago 685th JOrE20 🇺🇸 613 102 43ms 28 Nov 2025 686th tomh1012 613 104 415ms 25 days ago 687th HumanoidCPU 609 121 407ms 26 days ago 688th HumanoidCPU 608 105 404ms 27 days ago 689th AlephSquirrel 607 79 248ms 25 days ago 690th MeWhenI 🇻🇦 605 100 6ms 24 Nov 2025 691st D-MOVE 🇵🇭 604 74 39ms 17 days ago 692nd MeWhenI 🇻🇦 604 111 125ms 24 Nov 2025 693rd msbranicky 601 79 448ms 22 days ago 694th themoonisacheese 601 82 11ms 17 days ago 695th Schmitt-Very-Cool 600 127 10ms 20 days ago 696th CaedenHarper 🇨🇦 599 88 107ms 26 days ago 697th Nicronmil 598 74 9ms 15 days ago 697th two-bad 🇬🇧 598 74 10ms 9 days ago 699th anter69 🇭🇺 597 77 809ms 20 days ago 700th olleicua 🇺🇸 596 75 36ms 18 days ago 701st HumanoidCPU 595 107 9ms 27 days ago 702nd RDShah 594 83 11ms 24 days ago 703rd Natanaelel 🇸🇪 594 139 263ms 27 hours ago 704th CaedenHarper 🇨🇦 592 81 240ms 26 days ago 705th KatieLG 🇬🇧 589 108 8ms 25 days ago 706th HumanoidCPU 588 74 130ms 27 days ago 707th FortuiteMan 🇫🇷 586 114 13ms 2 days ago 708th BREMAUCY 🇫🇷 586 141 260ms 24 days ago 709th Yewzir 🇧🇪 585 82 285ms 26 days ago 710th aksyristos 585 83 2ms 23 days ago 711th BREMAUCY 🇫🇷 585 109 461ms 25 days ago 712th MeWhenI 🇻🇦 583 74 106ms 24 Nov 2025 713th dokutan 582 73 216ms 28 Nov 2025 714th Protothor 582 76 9ms 22 days ago 715th zgialor-lab 580 85 28ms 9 days ago 716th SwordF-Official 575 92 2ms 16 Nov 2025 716th HumanoidCPU 575 92 2ms 27 days ago 718th Maashau 575 106 2ms 25 days ago 719th BREMAUCY 🇫🇷 573 78 37ms 25 days ago 720th Schmitt-Very-Cool 573 86 10ms 21 days ago First Prev 641–720 of 1,115 Next Last