The Calendar hole will go live in approximately 11 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 MeWhenI 🇻🇦 837 91 8ms 27 days ago 402nd Shanethegamer 🇺🇸 836 55 896ms 4 Nov 2025 403rd ethanlally 836 84 574ms 27 days ago 403rd dokutan 836 84 342ms 22 days ago 403rd jkelly467 836 84 390ms 18 days ago 406th fuzzylojik-golf 🇺🇸 836 88 371ms 17 days ago 407th GolfingSuccess 🇬🇷 836 95 139ms 22 days ago 407th DialFrost 🇸🇬 836 95 102ms 17 days ago 409th rucin93 🇵🇱 835 56 5ms 30 Oct 2025 410th dokutan 835 70 3ms 21 days ago 411th dokutan 835 73 2ms 26 days ago 412th bitsandbeyond 🇳🇱 835 78 119ms 1 Nov 2025 412th dokutan 835 78 121ms 18 days ago 414th snoozingnewt 🇨🇦 834 53 9ms 21 days ago 414th Yax42 🇫🇷 834 53 9ms 18 days ago 416th dokutan 834 59 362ms 22 days ago 416th snoozingnewt 🇨🇦 834 59 453ms 21 days ago 418th CaedenHarper 🇨🇦 833 75 39ms 20 days ago 419th jkelly467 833 102 2ms 18 days ago 420th DialFrost 🇸🇬 832 59 96ms 18 days ago 421st GolfingSuccess 🇬🇷 831 84 39ms 3 Nov 2025 422nd albanian-laundromat 831 85 85ms 3 days ago 423rd Shanethegamer 🇺🇸 828 54 53ms 3 Nov 2025 423rd blaztoma 🇱🇹 828 54 33ms 20 days ago 425th emgordon154 828 58 1,129ms 9 hours ago 426th edsrzf 🇳🇿 828 61 6ms 19 days ago 426th DialFrost 🇸🇬 828 61 6ms 18 days ago 428th Natanaelel 🇸🇪 828 81 120ms 22 days ago 429th kg583 🇺🇸 828 92 9ms 30 Oct 2025 430th bitsandbeyond 🇳🇱 827 89 363ms 2 Nov 2025 431st blaztoma 🇱🇹 827 96 149ms 20 days ago 432nd MeWhenI 🇻🇦 825 100 252ms 27 days ago 433rd albanian-laundromat 823 61 11ms 27 days ago 433rd hiichbindermax 823 61 11ms 16 days ago 433rd Emutis 🇱🇹 823 61 12ms 13 days ago 436th rucin93 🇵🇱 822 76 41ms 30 Oct 2025 437th CaedenHarper 🇨🇦 821 56 806ms 20 days ago 438th albanian-laundromat 820 60 374ms 27 days ago 439th AlephSquirrel 819 93 9ms 30 Oct 2025 440th snoozingnewt 🇨🇦 819 97 120ms 19 days ago 441st Shanethegamer 🇺🇸 818 52 3ms 4 Nov 2025 441st fuzzylojik-golf 🇺🇸 818 52 3ms 17 days ago 443rd voytxt 🇨🇿 818 54 9ms 22 Nov 2025 443rd KatieLG 🇬🇧 818 54 9ms 19 days ago 443rd KrausRaus 🇺🇸 818 54 9ms 16 days ago 446th dokutan 818 78 385ms 26 days ago 447th edsrzf 🇳🇿 818 82 158ms 34 hours ago 448th blaztoma 🇱🇹 817 101 259ms 18 days ago 449th KasperKivimaeki 🇫🇮 817 104 2ms 2 Nov 2025 450th snoozingnewt 🇨🇦 816 94 26ms 19 days ago 451st canissimia 🇦🇶 816 209 3ms 24 days ago 452nd MeWhenI 🇻🇦 813 55 49ms 21 Nov 2025 453rd MeWhenI 🇻🇦 813 59 238ms 27 days ago 454th bitsandbeyond 🇳🇱 813 70 119ms 2 Nov 2025 455th bitsandbeyond 🇳🇱 813 74 1,242ms 31 Oct 2025 456th bitsandbeyond 🇳🇱 812 72 3ms 2 Nov 2025 457th Shanethegamer 🇺🇸 812 83 12ms 2 Nov 2025 457th dokutan 812 83 11ms 18 days ago 459th AlephSquirrel 812 90 65ms 19 days ago 460th inventshah 810 62 10ms 12 days ago 461st MeWhenI 🇻🇦 810 88 10ms 16 days ago 462nd snoozingnewt 🇨🇦 810 94 8ms 19 days ago 462nd blaztoma 🇱🇹 810 94 8ms 18 days ago 462nd BREMAUCY 🇫🇷 810 94 9ms 14 days ago 465th Shanethegamer 🇺🇸 809 60 1ms 3 Nov 2025 466th Shanethegamer 🇺🇸 808 73 3ms 3 Nov 2025 467th bitsandbeyond 🇳🇱 808 87 625ms 1 Nov 2025 468th Shanethegamer 🇺🇸 806 55 133ms 4 Nov 2025 468th emgordon154 806 55 141ms 8 hours ago 470th luuumine 🇫🇷 806 58 5ms 17 days ago 471st dokutan 805 61 92ms 21 days ago 472nd Maznek 803 55 9ms 10 days ago 473rd CaedenHarper 🇨🇦 803 74 101ms 20 days ago 474th CaedenHarper 🇨🇦 803 88 78ms 20 days ago 475th MeWhenI 🇻🇦 802 53 3ms 21 days ago 476th CLOStrophobic 🇮🇹 802 95 8ms 16 days ago 477th MeWhenI 🇻🇦 801 63 5ms 26 days ago 478th albanian-laundromat 801 78 41ms 26 days ago 479th albanian-laundromat 801 103 262ms 27 days ago 479th DialFrost 🇸🇬 801 103 247ms 16 days ago First Prev 401–480 of 1,099 Next Last