The Calendar hole will go live in approximately 7 hours. 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 641st TheZwierzLF 🇵🇱 669 71 478ms 19 days ago 642nd Jacob385 669 105 361ms 10 Nov 2025 643rd Babafaba 666 74 11ms 21 Nov 2025 643rd TheZwierzLF 🇵🇱 666 74 13ms 29 Nov 2025 643rd BREMAUCY 🇫🇷 666 74 12ms 30 Nov 2025 643rd btjones0 666 74 11ms 1 Dec 2025 643rd RandGuy 666 74 11ms 2 Dec 2025 643rd annaproxy 666 74 13ms 2 Dec 2025 643rd aksyristos 666 74 11ms 3 Dec 2025 643rd hippalectryon-0 666 74 11ms 24 days ago 643rd te-chnical 666 74 12ms 8 days ago 652nd Yewzir 🇧🇪 665 92 2,990ms 30 Nov 2025 653rd Yewzir 🇧🇪 662 116 27ms 30 Nov 2025 654th GolfingSuccess 🇬🇷 660 49 3ms 4 Nov 2025 655th bitsandbeyond 🇳🇱 660 119 111ms 31 Oct 2025 656th CaedenHarper 🇨🇦 660 157 2,347ms 30 Nov 2025 657th LostSyntax21 🇬🇧 658 75 20ms 30 Nov 2025 658th msbranicky 658 93 2,878ms 27 days ago 659th Shanethegamer 🇺🇸 657 102 116ms 2 Nov 2025 660th MeWhenI 🇻🇦 656 95 78ms 23 Nov 2025 661st bitsandbeyond 🇳🇱 655 75 94ms 5 Nov 2025 662nd JOrE20 🇺🇸 651 68 10ms 2 days ago 663rd GolfingSuccess 🇬🇷 651 157 1,519ms 24 days ago 664th albanian-laundromat 650 91 4ms 24 Nov 2025 665th Ripick 649 76 12ms 14 Nov 2025 665th scpchicken 🇵🇼 649 76 11ms 26 days ago 667th AutumnWind75 649 119 385ms 21 days ago 668th BREMAUCY 🇫🇷 642 74 501ms 1 Dec 2025 669th AlephSquirrel 641 105 8ms 30 Nov 2025 670th mousetail 🇳🇱 640 77 11ms 23 Nov 2025 671st GolfingSuccess 🇬🇷 635 72 1ms 30 Oct 2025 672nd dokutan 635 163 1,613ms 25 days ago 673rd HumanoidCPU 634 122 58ms 29 Nov 2025 674th HumanoidCPU 633 111 370ms 29 Nov 2025 675th Bmrl7 632 78 11ms 11 days ago 676th BREMAUCY 🇫🇷 631 97 3,199ms 3 Dec 2025 677th msbranicky 631 131 269ms 27 days ago 678th stackofbears 629 62 39ms 8 days ago 679th prestosilver 🇺🇸 629 97 2ms 3 Dec 2025 680th aksyristos 628 123 54ms 27 days ago 681st msbranicky 624 79 11ms 26 Nov 2025 681st nemoyatpeace 624 79 16ms 3 days ago 683rd msbranicky 624 108 8ms 27 days ago 684th alexsave 623 71 9ms 30 Nov 2025 685th HumanoidCPU 620 85 90ms 29 Nov 2025 686th HumanoidCPU 620 105 111ms 29 Nov 2025 687th albanian-laundromat 617 99 2ms 30 Nov 2025 688th MeWhenI 🇻🇦 616 76 5ms 23 Nov 2025 689th IISResetMe 616 78 273ms 30 Nov 2025 690th albanian-laundromat 616 82 4ms 25 Nov 2025 691st MeWhenI 🇻🇦 615 104 17ms 23 Nov 2025 692nd HumanoidCPU 614 72 9ms 29 Nov 2025 692nd olleicua 🇺🇸 614 72 10ms 23 days ago 694th tomh1012 614 104 415ms 1 Dec 2025 695th JOrE20 🇺🇸 613 102 43ms 28 Nov 2025 696th Waffle3z 609 87 2ms 4 days ago 697th HumanoidCPU 609 121 407ms 30 Nov 2025 698th AlephSquirrel 608 79 248ms 30 Nov 2025 699th HumanoidCPU 608 105 404ms 29 Nov 2025 700th D-MOVE 🇵🇭 605 74 39ms 22 days ago 701st MeWhenI 🇻🇦 605 100 6ms 24 Nov 2025 702nd MeWhenI 🇻🇦 604 111 125ms 24 Nov 2025 703rd msbranicky 601 79 470ms 27 days ago 704th themoonisacheese 601 82 11ms 22 days ago 705th Schmitt-Very-Cool 600 127 10ms 25 days ago 706th CaedenHarper 🇨🇦 599 88 107ms 30 Nov 2025 707th Nicronmil 598 74 9ms 20 days ago 707th two-bad 🇬🇧 598 74 10ms 13 days ago 709th olleicua 🇺🇸 597 75 36ms 23 days ago 710th anter69 🇭🇺 597 77 809ms 25 days ago 711th HumanoidCPU 595 107 9ms 29 Nov 2025 712th Natanaelel 🇸🇪 595 139 263ms 6 days ago 713th RDShah 594 83 11ms 1 Dec 2025 714th CaedenHarper 🇨🇦 593 81 240ms 30 Nov 2025 715th KatieLG 🇬🇧 589 108 8ms 30 Nov 2025 716th HumanoidCPU 588 74 130ms 29 Nov 2025 717th BREMAUCY 🇫🇷 586 109 461ms 1 Dec 2025 718th FortuiteMan 🇫🇷 586 114 13ms 7 days ago 719th BREMAUCY 🇫🇷 586 141 260ms 2 Dec 2025 720th Yewzir 🇧🇪 585 82 285ms 30 Nov 2025 First Prev 641–720 of 1,125 Next Last