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 401st 5cw 🇺🇸 837 60 11ms 15 Nov 2025 401st taifu 837 60 12ms 4 hours ago 403rd Shanethegamer 🇺🇸 837 91 8ms 3 Nov 2025 403rd MeWhenI 🇻🇦 837 91 8ms 27 days ago 405th Shanethegamer 🇺🇸 836 55 896ms 4 Nov 2025 406th ethanlally 836 84 574ms 27 days ago 406th dokutan 836 84 342ms 22 days ago 406th jkelly467 836 84 390ms 18 days ago 409th fuzzylojik-golf 🇺🇸 836 88 371ms 18 days ago 410th GolfingSuccess 🇬🇷 836 95 139ms 22 days ago 410th DialFrost 🇸🇬 836 95 102ms 17 days ago 412th rucin93 🇵🇱 835 56 5ms 30 Oct 2025 413th dokutan 835 70 3ms 22 days ago 414th dokutan 835 73 2ms 26 days ago 415th bitsandbeyond 🇳🇱 835 78 119ms 1 Nov 2025 415th dokutan 835 78 121ms 19 days ago 417th snoozingnewt 🇨🇦 834 53 9ms 22 days ago 417th Yax42 🇫🇷 834 53 9ms 18 days ago 419th dokutan 834 59 362ms 22 days ago 419th snoozingnewt 🇨🇦 834 59 453ms 22 days ago 421st CaedenHarper 🇨🇦 833 75 39ms 20 days ago 422nd jkelly467 833 102 2ms 18 days ago 423rd DialFrost 🇸🇬 832 59 96ms 18 days ago 424th GolfingSuccess 🇬🇷 831 84 39ms 3 Nov 2025 425th albanian-laundromat 831 85 85ms 4 days ago 426th Shanethegamer 🇺🇸 828 54 53ms 3 Nov 2025 426th blaztoma 🇱🇹 828 54 33ms 20 days ago 428th emgordon154 828 58 1,129ms 16 hours ago 429th edsrzf 🇳🇿 828 61 6ms 19 days ago 429th DialFrost 🇸🇬 828 61 6ms 18 days ago 431st Natanaelel 🇸🇪 828 81 120ms 23 days ago 432nd kg583 🇺🇸 828 92 9ms 30 Oct 2025 433rd bitsandbeyond 🇳🇱 827 89 363ms 2 Nov 2025 434th blaztoma 🇱🇹 827 96 149ms 20 days ago 435th MeWhenI 🇻🇦 825 100 252ms 27 days ago 436th albanian-laundromat 823 61 11ms 27 days ago 436th hiichbindermax 823 61 11ms 17 days ago 436th Emutis 🇱🇹 823 61 12ms 13 days ago 439th rucin93 🇵🇱 822 76 41ms 30 Oct 2025 440th CaedenHarper 🇨🇦 821 56 806ms 20 days ago 441st albanian-laundromat 820 60 374ms 27 days ago 442nd AlephSquirrel 819 93 9ms 30 Oct 2025 443rd snoozingnewt 🇨🇦 819 97 120ms 20 days ago 444th Shanethegamer 🇺🇸 818 52 3ms 4 Nov 2025 444th fuzzylojik-golf 🇺🇸 818 52 3ms 17 days ago 446th voytxt 🇨🇿 818 54 9ms 22 Nov 2025 446th KatieLG 🇬🇧 818 54 9ms 20 days ago 446th KrausRaus 🇺🇸 818 54 9ms 17 days ago 449th dokutan 818 78 385ms 26 days ago 450th edsrzf 🇳🇿 818 82 158ms 42 hours ago 451st blaztoma 🇱🇹 817 101 259ms 19 days ago 452nd KasperKivimaeki 🇫🇮 817 104 2ms 2 Nov 2025 453rd snoozingnewt 🇨🇦 816 94 26ms 20 days ago 454th canissimia 🇦🇶 816 209 3ms 24 days ago 455th MeWhenI 🇻🇦 813 55 49ms 21 Nov 2025 456th MeWhenI 🇻🇦 813 59 238ms 27 days ago 457th bitsandbeyond 🇳🇱 813 70 119ms 2 Nov 2025 458th bitsandbeyond 🇳🇱 813 74 1,242ms 31 Oct 2025 459th bitsandbeyond 🇳🇱 812 72 3ms 2 Nov 2025 460th Shanethegamer 🇺🇸 812 83 12ms 2 Nov 2025 460th dokutan 812 83 11ms 19 days ago 462nd AlephSquirrel 812 90 65ms 20 days ago 463rd inventshah 810 62 10ms 12 days ago 464th MeWhenI 🇻🇦 810 88 10ms 17 days ago 465th snoozingnewt 🇨🇦 810 94 8ms 19 days ago 465th blaztoma 🇱🇹 810 94 8ms 19 days ago 465th BREMAUCY 🇫🇷 810 94 9ms 14 days ago 468th Shanethegamer 🇺🇸 809 60 1ms 3 Nov 2025 469th Shanethegamer 🇺🇸 808 73 3ms 3 Nov 2025 470th bitsandbeyond 🇳🇱 808 87 625ms 1 Nov 2025 471st Shanethegamer 🇺🇸 806 55 133ms 4 Nov 2025 471st emgordon154 806 55 141ms 16 hours ago 473rd luuumine 🇫🇷 806 58 5ms 17 days ago 474th dokutan 805 61 92ms 22 days ago 475th Maznek 803 55 9ms 10 days ago 476th CaedenHarper 🇨🇦 803 74 101ms 20 days ago 477th CaedenHarper 🇨🇦 803 88 78ms 20 days ago 478th MeWhenI 🇻🇦 802 53 3ms 21 days ago 479th CLOStrophobic 🇮🇹 802 95 8ms 17 days ago 480th MeWhenI 🇻🇦 801 63 5ms 26 days ago First Prev 401–480 of 1,104 Next Last