The Calendar hole will go live in approximately 3 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 MeWhenI 🇻🇦 851 70 101ms 23 Nov 2025 402nd bitsandbeyond 🇳🇱 851 83 77ms 31 Oct 2025 403rd bitsandbeyond 🇳🇱 851 97 250ms 1 Nov 2025 404th dokutan 850 72 3,791ms 28 Nov 2025 405th MeWhenI 🇻🇦 849 69 1,239ms 23 Nov 2025 406th Natanaelel 🇸🇪 848 46 33ms 8 Nov 2025 407th h3ra993huskp 🇯🇵 847 83 343ms 14 days ago 408th edsrzf 🇳🇿 845 94 137ms 27 days ago 409th Natanaelel 🇸🇪 844 53 38ms 4 Nov 2025 410th emgordon154 842 57 906ms 7 days ago 411th blaztoma 🇱🇹 842 60 7ms 30 Nov 2025 412th dokutan 840 92 58ms 24 Nov 2025 413th ovs-code 🇩🇪 838 76 12ms 3 Nov 2025 414th 5cw 🇺🇸 837 60 11ms 15 Nov 2025 414th taifu 837 60 12ms 8 days ago 414th Lv0Sys 🇵🇱 837 60 12ms 4 days ago 417th Shanethegamer 🇺🇸 837 68 4ms 4 Nov 2025 417th MeWhenI 🇻🇦 837 68 3ms 23 Nov 2025 417th edsrzf 🇳🇿 837 68 3ms 27 days ago 417th DialFrost 🇸🇬 837 68 3ms 25 days ago 421st fuzzylojik-golf 🇺🇸 837 88 371ms 26 days ago 422nd Shanethegamer 🇺🇸 837 91 8ms 3 Nov 2025 422nd MeWhenI 🇻🇦 837 91 8ms 23 Nov 2025 424th Shanethegamer 🇺🇸 836 55 896ms 4 Nov 2025 425th dokutan 836 73 2ms 24 Nov 2025 426th ethanlally 836 84 574ms 23 Nov 2025 426th dokutan 836 84 342ms 28 Nov 2025 426th jkelly467 836 84 390ms 26 days ago 429th GolfingSuccess 🇬🇷 836 95 139ms 28 Nov 2025 429th DialFrost 🇸🇬 836 95 102ms 25 days ago 431st snoozingnewt 🇨🇦 835 53 9ms 28 Nov 2025 431st Yax42 🇫🇷 835 53 9ms 26 days ago 433rd rucin93 🇵🇱 835 56 5ms 30 Oct 2025 434th dokutan 835 59 362ms 28 Nov 2025 434th snoozingnewt 🇨🇦 835 59 453ms 28 Nov 2025 436th bitsandbeyond 🇳🇱 835 78 119ms 1 Nov 2025 436th dokutan 835 78 121ms 27 days ago 438th CaedenHarper 🇨🇦 833 75 39ms 30 Nov 2025 439th jkelly467 833 102 2ms 26 days ago 440th DialFrost 🇸🇬 832 59 96ms 26 days ago 441st GolfingSuccess 🇬🇷 831 84 39ms 3 Nov 2025 442nd albanian-laundromat 831 85 85ms 12 days ago 443rd Shanethegamer 🇺🇸 828 54 39ms 3 Nov 2025 443rd blaztoma 🇱🇹 828 54 35ms 30 Nov 2025 445th edsrzf 🇳🇿 828 61 6ms 27 days ago 445th DialFrost 🇸🇬 828 61 5ms 26 days ago 447th Natanaelel 🇸🇪 828 81 120ms 27 Nov 2025 448th bitsandbeyond 🇳🇱 828 89 363ms 2 Nov 2025 449th kg583 🇺🇸 828 92 9ms 30 Oct 2025 450th blaztoma 🇱🇹 827 96 124ms 30 Nov 2025 451st MeWhenI 🇻🇦 826 100 252ms 23 Nov 2025 452nd sean-niemann 🇺🇸 825 66 215ms 26 days ago 453rd albanian-laundromat 823 61 11ms 23 Nov 2025 453rd hiichbindermax 823 61 11ms 25 days ago 453rd Emutis 🇱🇹 823 61 12ms 21 days ago 456th rucin93 🇵🇱 822 76 41ms 30 Oct 2025 457th emgordon154 821 54 128ms 7 days ago 458th CaedenHarper 🇨🇦 821 56 806ms 30 Nov 2025 459th albanian-laundromat 821 60 374ms 23 Nov 2025 460th voytxt 🇨🇿 819 54 9ms 22 Nov 2025 460th KatieLG 🇬🇧 819 54 9ms 30 Nov 2025 460th KrausRaus 🇺🇸 819 54 9ms 25 days ago 463rd AlephSquirrel 819 93 9ms 30 Oct 2025 464th snoozingnewt 🇨🇦 819 97 120ms 27 days ago 465th Shanethegamer 🇺🇸 818 52 3ms 4 Nov 2025 465th fuzzylojik-golf 🇺🇸 818 52 3ms 25 days ago 467th dokutan 818 78 385ms 24 Nov 2025 468th edsrzf 🇳🇿 818 82 158ms 9 days ago 469th snoozingnewt 🇨🇦 818 94 26ms 27 days ago 470th blaztoma 🇱🇹 817 101 259ms 27 days ago 471st KasperKivimaeki 🇫🇮 817 104 2ms 2 Nov 2025 472nd MeWhenI 🇻🇦 814 59 223ms 23 Nov 2025 473rd MeWhenI 🇻🇦 813 55 35ms 21 Nov 2025 474th CaedenHarper 🇨🇦 813 67 165ms 30 Nov 2025 475th dokutan 813 70 3ms 28 Nov 2025 476th Shanethegamer 🇺🇸 812 83 12ms 2 Nov 2025 476th dokutan 812 83 11ms 27 days ago 478th AlephSquirrel 812 90 65ms 30 Nov 2025 479th inventshah 810 62 10ms 20 days ago 480th MeWhenI 🇻🇦 810 88 10ms 25 days ago First Prev 401–480 of 1,132 Next Last