The Calendar hole will go live in approximately 10 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 401st ovs-code 🇩🇪 838 76 12ms 3 Nov 2025 402nd dokutan 838 92 80ms 26 days ago 403rd 5cw 🇺🇸 837 60 11ms 15 Nov 2025 403rd taifu 837 60 12ms 8 hours ago 405th Shanethegamer 🇺🇸 837 91 8ms 3 Nov 2025 405th MeWhenI 🇻🇦 837 91 8ms 27 days ago 407th Shanethegamer 🇺🇸 836 55 896ms 4 Nov 2025 408th ethanlally 836 84 574ms 23 Nov 2025 408th dokutan 836 84 342ms 22 days ago 408th jkelly467 836 84 390ms 19 days ago 411th fuzzylojik-golf 🇺🇸 836 88 371ms 18 days ago 412th GolfingSuccess 🇬🇷 836 95 139ms 22 days ago 412th DialFrost 🇸🇬 836 95 102ms 17 days ago 414th rucin93 🇵🇱 835 56 5ms 30 Oct 2025 415th dokutan 835 70 3ms 22 days ago 416th dokutan 835 73 2ms 26 days ago 417th bitsandbeyond 🇳🇱 835 78 119ms 1 Nov 2025 417th dokutan 835 78 121ms 19 days ago 419th snoozingnewt 🇨🇦 834 53 9ms 22 days ago 419th Yax42 🇫🇷 834 53 9ms 18 days ago 421st dokutan 834 59 362ms 22 days ago 421st snoozingnewt 🇨🇦 834 59 453ms 22 days ago 423rd CaedenHarper 🇨🇦 833 75 39ms 20 days ago 424th jkelly467 833 102 2ms 19 days ago 425th DialFrost 🇸🇬 832 59 96ms 19 days ago 426th GolfingSuccess 🇬🇷 831 84 39ms 3 Nov 2025 427th albanian-laundromat 831 85 85ms 4 days ago 428th Shanethegamer 🇺🇸 828 54 53ms 3 Nov 2025 428th blaztoma 🇱🇹 828 54 33ms 20 days ago 430th edsrzf 🇳🇿 828 61 6ms 19 days ago 430th DialFrost 🇸🇬 828 61 5ms 19 days ago 432nd Natanaelel 🇸🇪 828 81 120ms 23 days ago 433rd kg583 🇺🇸 828 92 9ms 30 Oct 2025 434th bitsandbeyond 🇳🇱 827 89 363ms 2 Nov 2025 435th blaztoma 🇱🇹 827 96 149ms 20 days ago 436th MeWhenI 🇻🇦 825 100 252ms 27 days ago 437th albanian-laundromat 823 61 11ms 27 days ago 437th hiichbindermax 823 61 11ms 17 days ago 437th Emutis 🇱🇹 823 61 12ms 13 days ago 440th rucin93 🇵🇱 822 76 41ms 30 Oct 2025 441st emgordon154 821 54 128ms 2 hours ago 442nd CaedenHarper 🇨🇦 821 56 806ms 20 days ago 443rd albanian-laundromat 820 60 374ms 27 days ago 444th AlephSquirrel 819 93 9ms 30 Oct 2025 445th snoozingnewt 🇨🇦 819 97 120ms 20 days ago 446th Shanethegamer 🇺🇸 818 52 3ms 4 Nov 2025 446th fuzzylojik-golf 🇺🇸 818 52 3ms 17 days ago 448th voytxt 🇨🇿 818 54 9ms 22 Nov 2025 448th KatieLG 🇬🇧 818 54 9ms 20 days ago 448th KrausRaus 🇺🇸 818 54 9ms 17 days ago 451st dokutan 818 78 385ms 26 days ago 452nd edsrzf 🇳🇿 818 82 158ms 46 hours ago 453rd blaztoma 🇱🇹 817 101 259ms 19 days ago 454th KasperKivimaeki 🇫🇮 817 104 2ms 2 Nov 2025 455th snoozingnewt 🇨🇦 816 94 26ms 20 days ago 456th canissimia 🇦🇶 816 209 3ms 24 days ago 457th MeWhenI 🇻🇦 813 55 49ms 21 Nov 2025 458th MeWhenI 🇻🇦 813 59 238ms 27 days ago 459th bitsandbeyond 🇳🇱 813 70 119ms 2 Nov 2025 460th bitsandbeyond 🇳🇱 813 74 1,242ms 31 Oct 2025 461st bitsandbeyond 🇳🇱 812 72 3ms 2 Nov 2025 462nd Shanethegamer 🇺🇸 812 83 12ms 2 Nov 2025 462nd dokutan 812 83 11ms 19 days ago 464th AlephSquirrel 812 90 65ms 20 days ago 465th inventshah 810 62 10ms 12 days ago 466th MeWhenI 🇻🇦 810 88 10ms 17 days ago 467th snoozingnewt 🇨🇦 810 94 8ms 20 days ago 467th blaztoma 🇱🇹 810 94 8ms 19 days ago 467th BREMAUCY 🇫🇷 810 94 9ms 14 days ago 470th Shanethegamer 🇺🇸 809 60 1ms 3 Nov 2025 471st Shanethegamer 🇺🇸 808 73 3ms 3 Nov 2025 472nd bitsandbeyond 🇳🇱 808 87 625ms 1 Nov 2025 473rd Shanethegamer 🇺🇸 806 55 133ms 4 Nov 2025 474th luuumine 🇫🇷 806 58 5ms 17 days ago 475th dokutan 805 61 92ms 22 days ago 476th Maznek 803 55 9ms 10 days ago 477th CaedenHarper 🇨🇦 803 74 101ms 20 days ago 478th CaedenHarper 🇨🇦 803 88 78ms 20 days ago 479th MeWhenI 🇻🇦 802 53 3ms 21 days ago 480th CLOStrophobic 🇮🇹 802 95 8ms 17 days ago First Prev 401–480 of 1,104 Next Last