The Calendar hole will go live in approximately 12 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 400th Yax42 🇫🇷 834 53 9ms 17 days ago 402nd dokutan 833 59 362ms 21 days ago 402nd snoozingnewt 🇨🇦 833 59 453ms 20 days ago 404th CaedenHarper 🇨🇦 833 75 39ms 19 days ago 405th bitsandbeyond 🇳🇱 833 78 119ms 1 Nov 2025 405th dokutan 833 78 121ms 18 days ago 407th jkelly467 833 102 2ms 17 days ago 408th MeWhenI 🇻🇦 832 100 252ms 26 days ago 409th dokutan 831 61 92ms 20 days ago 410th GolfingSuccess 🇬🇷 831 84 39ms 3 Nov 2025 411th albanian-laundromat 831 85 85ms 2 days ago 412th Shanethegamer 🇺🇸 828 54 53ms 3 Nov 2025 412th blaztoma 🇱🇹 828 54 33ms 19 days ago 414th edsrzf 🇳🇿 828 61 6ms 18 days ago 414th DialFrost 🇸🇬 828 61 22ms 17 days ago 416th Natanaelel 🇸🇪 828 81 120ms 21 days ago 417th kg583 🇺🇸 828 92 9ms 30 Oct 2025 418th bitsandbeyond 🇳🇱 827 89 363ms 2 Nov 2025 419th blaztoma 🇱🇹 827 96 149ms 19 days ago 420th blaztoma 🇱🇹 824 101 259ms 17 days ago 421st albanian-laundromat 823 61 11ms 26 days ago 421st hiichbindermax 823 61 11ms 15 days ago 421st Emutis 🇱🇹 823 61 12ms 12 days ago 424th rucin93 🇵🇱 822 76 41ms 30 Oct 2025 425th albanian-laundromat 819 60 374ms 26 days ago 426th AlephSquirrel 819 93 9ms 30 Oct 2025 427th snoozingnewt 🇨🇦 819 97 120ms 18 days ago 428th Shanethegamer 🇺🇸 818 52 3ms 4 Nov 2025 428th fuzzylojik-golf 🇺🇸 818 52 3ms 16 days ago 430th voytxt 🇨🇿 818 54 9ms 27 days ago 430th emgordon154 818 54 9ms 25 days ago 430th KatieLG 🇬🇧 818 54 9ms 18 days ago 430th KrausRaus 🇺🇸 818 54 9ms 15 days ago 434th edsrzf 🇳🇿 818 82 158ms 12 hours ago 435th Shanethegamer 🇺🇸 817 62 94ms 3 Nov 2025 436th dokutan 817 78 385ms 25 days ago 437th KasperKivimaeki 🇫🇮 817 104 2ms 2 Nov 2025 438th snoozingnewt 🇨🇦 816 94 26ms 18 days ago 439th canissimia 🇦🇶 816 209 3ms 23 days ago 440th MeWhenI 🇻🇦 813 55 49ms 21 Nov 2025 441st MeWhenI 🇻🇦 813 59 238ms 26 days ago 442nd bitsandbeyond 🇳🇱 813 70 119ms 2 Nov 2025 443rd bitsandbeyond 🇳🇱 813 74 1,242ms 31 Oct 2025 444th bitsandbeyond 🇳🇱 812 72 3ms 2 Nov 2025 445th Shanethegamer 🇺🇸 812 83 12ms 2 Nov 2025 445th dokutan 812 83 11ms 18 days ago 447th AlephSquirrel 812 90 65ms 18 days ago 448th MeWhenI 🇻🇦 810 88 10ms 15 days ago 449th snoozingnewt 🇨🇦 810 94 8ms 18 days ago 449th blaztoma 🇱🇹 810 94 8ms 17 days ago 449th BREMAUCY 🇫🇷 810 94 9ms 13 days ago 452nd Shanethegamer 🇺🇸 809 60 1ms 3 Nov 2025 452nd DialFrost 🇸🇬 809 60 2ms 16 days ago 454th inventshah 809 62 10ms 11 days ago 455th Shanethegamer 🇺🇸 808 73 3ms 3 Nov 2025 456th albanian-laundromat 808 103 262ms 26 days ago 456th DialFrost 🇸🇬 808 103 247ms 16 days ago 458th bitsandbeyond 🇳🇱 807 87 625ms 1 Nov 2025 459th luuumine 🇫🇷 806 58 5ms 16 days ago 460th Shanethegamer 🇺🇸 805 55 133ms 4 Nov 2025 461st MeWhenI 🇻🇦 804 63 96ms 26 days ago 462nd Maznek 803 55 9ms 9 days ago 463rd CaedenHarper 🇨🇦 803 74 101ms 19 days ago 464th CaedenHarper 🇨🇦 803 88 78ms 19 days ago 465th MeWhenI 🇻🇦 802 53 3ms 20 days ago 466th CLOStrophobic 🇮🇹 802 95 8ms 15 days ago 467th MeWhenI 🇻🇦 801 63 5ms 25 days ago 468th albanian-laundromat 801 78 41ms 25 days ago 469th Natanaelel 🇸🇪 800 55 127ms 4 Nov 2025 470th emgordon154 800 60 725ms 18 days ago 470th snoozingnewt 🇨🇦 800 60 726ms 18 days ago 472nd dokutan 800 92 378ms 20 days ago 473rd DialFrost 🇸🇬 798 66 125ms 16 days ago 474th Shanethegamer 🇺🇸 794 92 73ms 3 Nov 2025 474th blaztoma 🇱🇹 794 92 64ms 17 days ago 476th Shanethegamer 🇺🇸 794 100 112ms 3 Nov 2025 477th albanian-laundromat 793 77 2,962ms 26 days ago 478th neosimsim 793 96 8ms 26 days ago 479th CaedenHarper 🇨🇦 792 64 96ms 19 days ago 480th MeWhenI 🇻🇦 791 56 127ms 26 days ago First Prev 401–480 of 1,083 Next Last