The Calendar hole will go live in approximately 6 hours. 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 399th commandblockguy 🇺🇸 851 59 11ms 28 Nov 2025 399th dokutan 851 59 11ms 28 Nov 2025 399th snoozingnewt 🇨🇦 851 59 11ms 28 Nov 2025 399th vhoulbreque 🇫🇷 851 59 12ms 30 Nov 2025 399th YAJUE114514 851 59 12ms 21 days ago 399th enigma 851 59 12ms 10 days ago 407th MeWhenI 🇻🇦 851 70 101ms 23 Nov 2025 408th bitsandbeyond 🇳🇱 851 83 77ms 31 Oct 2025 409th dokutan 850 72 3,791ms 28 Nov 2025 410th MeWhenI 🇻🇦 849 69 1,239ms 23 Nov 2025 411th Natanaelel 🇸🇪 848 46 33ms 8 Nov 2025 412th h3ra993huskp 🇯🇵 847 83 343ms 17 days ago 413th edsrzf 🇳🇿 845 94 137ms 1 Dec 2025 414th Natanaelel 🇸🇪 844 53 38ms 4 Nov 2025 414th nwellnhof 🇩🇪 844 53 35ms 2 hours ago 416th emgordon154 842 57 906ms 10 days ago 417th blaztoma 🇱🇹 842 60 7ms 30 Nov 2025 418th dokutan 840 92 58ms 24 Nov 2025 419th ovs-code 🇩🇪 838 76 12ms 3 Nov 2025 420th 5cw 🇺🇸 837 60 11ms 15 Nov 2025 420th taifu 837 60 12ms 10 days ago 420th Lv0Sys 🇵🇱 837 60 12ms 7 days ago 423rd Shanethegamer 🇺🇸 837 68 4ms 4 Nov 2025 423rd MeWhenI 🇻🇦 837 68 3ms 23 Nov 2025 423rd edsrzf 🇳🇿 837 68 3ms 1 Dec 2025 423rd DialFrost 🇸🇬 837 68 3ms 27 days ago 427th fuzzylojik-golf 🇺🇸 837 88 371ms 2 Dec 2025 428th Shanethegamer 🇺🇸 837 91 8ms 3 Nov 2025 428th MeWhenI 🇻🇦 837 91 8ms 23 Nov 2025 430th Shanethegamer 🇺🇸 836 55 896ms 4 Nov 2025 431st rucin93 🇵🇱 836 56 5ms 30 Oct 2025 431st DialFrost 🇸🇬 836 56 57ms 44 hours ago 433rd dokutan 836 73 2ms 24 Nov 2025 434th ethanlally 836 84 574ms 23 Nov 2025 434th dokutan 836 84 342ms 28 Nov 2025 434th jkelly467 836 84 390ms 2 Dec 2025 437th GolfingSuccess 🇬🇷 836 95 139ms 28 Nov 2025 437th DialFrost 🇸🇬 836 95 102ms 3 Dec 2025 439th snoozingnewt 🇨🇦 835 53 9ms 28 Nov 2025 439th Yax42 🇫🇷 835 53 9ms 2 Dec 2025 441st dokutan 835 59 480ms 28 Nov 2025 441st snoozingnewt 🇨🇦 835 59 455ms 28 Nov 2025 443rd dokutan 835 78 121ms 1 Dec 2025 444th CaedenHarper 🇨🇦 833 75 39ms 30 Nov 2025 445th jkelly467 833 102 2ms 2 Dec 2025 446th DialFrost 🇸🇬 832 59 96ms 2 Dec 2025 447th GolfingSuccess 🇬🇷 831 84 39ms 3 Nov 2025 448th albanian-laundromat 831 85 85ms 14 days ago 449th Shanethegamer 🇺🇸 829 54 39ms 3 Nov 2025 449th blaztoma 🇱🇹 829 54 35ms 30 Nov 2025 451st edsrzf 🇳🇿 828 61 6ms 1 Dec 2025 451st DialFrost 🇸🇬 828 61 5ms 2 Dec 2025 453rd Natanaelel 🇸🇪 828 81 120ms 27 Nov 2025 454th bitsandbeyond 🇳🇱 828 89 363ms 2 Nov 2025 455th kg583 🇺🇸 828 92 9ms 30 Oct 2025 456th blaztoma 🇱🇹 827 96 124ms 30 Nov 2025 457th MeWhenI 🇻🇦 826 100 252ms 23 Nov 2025 458th albanian-laundromat 824 61 11ms 23 Nov 2025 458th hiichbindermax 824 61 11ms 27 days ago 458th Emutis 🇱🇹 824 61 12ms 24 days ago 461st rucin93 🇵🇱 822 76 41ms 30 Oct 2025 462nd emgordon154 821 54 128ms 10 days ago 463rd CaedenHarper 🇨🇦 821 56 806ms 30 Nov 2025 464th albanian-laundromat 821 60 424ms 23 Nov 2025 465th voytxt 🇨🇿 819 54 9ms 22 Nov 2025 465th KatieLG 🇬🇧 819 54 9ms 30 Nov 2025 465th KrausRaus 🇺🇸 819 54 9ms 27 days ago 468th dokutan 819 78 385ms 24 Nov 2025 469th AlephSquirrel 819 93 9ms 30 Oct 2025 470th snoozingnewt 🇨🇦 819 97 120ms 30 Nov 2025 471st Shanethegamer 🇺🇸 818 52 3ms 4 Nov 2025 471st fuzzylojik-golf 🇺🇸 818 52 3ms 3 Dec 2025 473rd edsrzf 🇳🇿 818 82 158ms 12 days ago 474th snoozingnewt 🇨🇦 818 94 26ms 30 Nov 2025 475th blaztoma 🇱🇹 818 101 259ms 1 Dec 2025 476th KasperKivimaeki 🇫🇮 817 104 2ms 2 Nov 2025 477th MeWhenI 🇻🇦 814 55 35ms 21 Nov 2025 478th MeWhenI 🇻🇦 814 59 223ms 23 Nov 2025 479th dokutan 813 70 3ms 28 Nov 2025 480th Shanethegamer 🇺🇸 812 83 12ms 2 Nov 2025 First Prev 401–480 of 1,137 Next Last