The Calendar hole will go live in approximately 8 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 561st H3XDaemon 754 81 2ms 11 days ago 562nd MeWhenI 🇻🇦 753 97 63ms 24 Nov 2025 563rd DialFrost 🇸🇬 752 136 1,476ms 27 days ago 564th bitsandbeyond 🇳🇱 751 83 77ms 31 Oct 2025 565th CaedenHarper 🇨🇦 750 58 125ms 30 Nov 2025 566th dokutan 750 59 9ms 28 Nov 2025 567th duckyluuk 🇳🇱 750 95 8ms 30 Oct 2025 568th bitsandbeyond 🇳🇱 748 90 10ms 31 Oct 2025 569th HumanoidCPU 747 102 8ms 30 Nov 2025 569th bitsandbeyond 🇳🇱 747 102 9ms 30 Nov 2025 571st MeWhenI 🇻🇦 745 57 299ms 24 Nov 2025 571st CaedenHarper 🇨🇦 745 57 200ms 30 Nov 2025 571st bitsandbeyond 🇳🇱 745 57 203ms 30 Nov 2025 574th albanian-laundromat 745 64 2ms 23 Nov 2025 575th MeWhenI 🇻🇦 742 71 87ms 23 Nov 2025 575th snoozingnewt 🇨🇦 742 71 91ms 28 Nov 2025 577th emgordon154 741 138 1,446ms 24 Nov 2025 577th Shanethegamer 🇺🇸 741 138 1,451ms 27 days ago 579th blaztoma 🇱🇹 740 91 10ms 2 Dec 2025 580th MeWhenI 🇻🇦 739 115 2ms 23 Nov 2025 581st iczelia 🇩🇪 737 60 9ms 1 Dec 2025 582nd HumanoidCPU 735 74 129ms 29 Nov 2025 582nd Ripick 735 74 137ms 30 Nov 2025 584th KatieLG 🇬🇧 734 61 35ms 30 Nov 2025 585th HumanoidCPU 734 107 106ms 30 Nov 2025 586th albanian-laundromat 733 87 400ms 30 Nov 2025 587th vhoulbreque 🇫🇷 732 64 4ms 30 Nov 2025 588th MeWhenI 🇻🇦 732 92 13ms 23 Nov 2025 589th albanian-laundromat 730 101 149ms 23 Nov 2025 590th MeWhenI 🇻🇦 727 51 5ms 23 Nov 2025 591st dokutan 727 66 732ms 28 Nov 2025 591st dokutan 727 66 253ms 1 Dec 2025 593rd albanian-laundromat 727 98 9ms 30 Nov 2025 594th albanian-laundromat 725 61 9ms 24 Nov 2025 595th albanian-laundromat 725 75 128ms 25 Nov 2025 596th Yewzir 🇧🇪 725 105 8ms 30 Nov 2025 597th MeWhenI 🇻🇦 725 141 1,427ms 27 days ago 598th bitsandbeyond 🇳🇱 721 73 88ms 2 Nov 2025 599th AlephSquirrel 720 85 3,030ms 30 Nov 2025 600th GolfingSuccess 🇬🇷 720 99 8ms 5 Nov 2025 601st HumanoidCPU 718 85 2ms 29 Nov 2025 602nd albanian-laundromat 718 107 24ms 30 Oct 2025 602nd HumanoidCPU 718 107 27ms 1 Dec 2025 602nd Natanaelel 🇸🇪 718 107 24ms 6 days ago 605th Yewzir 🇧🇪 717 94 11ms 30 Nov 2025 606th rucin93 🇵🇱 714 68 2ms 30 Oct 2025 607th emplv 🇱🇻 713 62 9ms 30 Oct 2025 608th YAJUE114514 713 94 110ms 21 days ago 609th MeWhenI 🇻🇦 713 98 42ms 24 Nov 2025 610th anter69 🇭🇺 710 63 40ms 25 days ago 611th CaedenHarper 🇨🇦 708 88 78ms 30 Nov 2025 612th cros107 🇦🇺 704 70 11ms 11 Nov 2025 612th madex 🇩🇪 704 70 11ms 1 Dec 2025 612th CutSandstone 704 70 11ms 27 days ago 615th BREMAUCY 🇫🇷 703 104 66ms 2 Dec 2025 616th bitsandbeyond 🇳🇱 703 121 2ms 1 Nov 2025 617th aksyristos 702 87 2ms 3 Dec 2025 618th dokutan 701 72 5ms 28 Nov 2025 619th Yewzir 🇧🇪 699 102 10ms 30 Nov 2025 620th albanian-laundromat 696 111 2,079ms 23 Nov 2025 621st zgialor-lab 694 88 2ms 14 days ago 622nd albanian-laundromat 692 86 99ms 23 Nov 2025 623rd Lv0Sys 🇵🇱 691 64 10ms 18 days ago 624th HumanoidCPU 691 101 45ms 30 Nov 2025 625th bitsandbeyond 🇳🇱 689 68 4ms 1 Nov 2025 626th albanian-laundromat 688 73 250ms 24 Nov 2025 627th GolfingSuccess 🇬🇷 687 98 8ms 30 Nov 2025 628th BREMAUCY 🇫🇷 680 99 7ms 2 Dec 2025 628th Schmitt-Very-Cool 680 99 8ms 25 days ago 630th HumanoidCPU 677 88 111ms 30 Nov 2025 631st bitsandbeyond 🇳🇱 677 94 10ms 45 mins ago 632nd albanian-laundromat 677 99 117ms 30 Oct 2025 633rd Yewzir 🇧🇪 677 122 264ms 30 Nov 2025 634th ahmetdemirag 🇨🇾 676 73 12ms 28 Nov 2025 634th SirBogman 🇺🇸 676 73 13ms 1 Dec 2025 636th CaedenHarper 🇨🇦 671 117 116ms 30 Nov 2025 637th duckyluuk 🇳🇱 670 66 10ms 30 Oct 2025 637th helbling 🇨🇭 670 66 10ms 18 days ago 639th Shanethegamer 🇺🇸 670 93 78ms 2 Nov 2025 640th TheZwierzLF 🇵🇱 669 71 478ms 19 days ago First Prev 561–640 of 1,124 Next Last