The Calendar hole will go live in approximately 6 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 🇻🇦 849 69 1,239ms 23 Nov 2025 402nd Natanaelel 🇸🇪 848 46 33ms 8 Nov 2025 403rd h3ra993huskp 🇯🇵 847 83 343ms 11 days ago 404th edsrzf 🇳🇿 845 94 137ms 24 days ago 405th Natanaelel 🇸🇪 844 53 38ms 4 Nov 2025 406th emgordon154 842 57 906ms 4 days ago 407th blaztoma 🇱🇹 842 60 7ms 25 days ago 408th dokutan 839 92 58ms 24 Nov 2025 409th ovs-code 🇩🇪 838 76 12ms 3 Nov 2025 410th 5cw 🇺🇸 837 60 11ms 15 Nov 2025 410th taifu 837 60 12ms 5 days ago 410th Lv0Sys 🇵🇱 837 60 12ms 36 hours ago 413th Shanethegamer 🇺🇸 837 68 4ms 4 Nov 2025 413th MeWhenI 🇻🇦 837 68 3ms 23 Nov 2025 413th edsrzf 🇳🇿 837 68 3ms 24 days ago 413th DialFrost 🇸🇬 837 68 3ms 22 days ago 417th fuzzylojik-golf 🇺🇸 837 88 371ms 23 days ago 418th Shanethegamer 🇺🇸 837 91 8ms 3 Nov 2025 418th MeWhenI 🇻🇦 837 91 8ms 23 Nov 2025 420th Shanethegamer 🇺🇸 836 55 896ms 4 Nov 2025 421st dokutan 836 73 2ms 24 Nov 2025 422nd ethanlally 836 84 574ms 23 Nov 2025 422nd dokutan 836 84 342ms 27 days ago 422nd jkelly467 836 84 390ms 23 days ago 425th GolfingSuccess 🇬🇷 836 95 139ms 27 days ago 425th DialFrost 🇸🇬 836 95 102ms 22 days ago 427th rucin93 🇵🇱 835 56 5ms 30 Oct 2025 428th dokutan 835 59 362ms 27 days ago 428th snoozingnewt 🇨🇦 835 59 453ms 27 days ago 430th bitsandbeyond 🇳🇱 835 78 119ms 1 Nov 2025 430th dokutan 835 78 121ms 24 days ago 432nd snoozingnewt 🇨🇦 834 53 9ms 27 days ago 432nd Yax42 🇫🇷 834 53 9ms 23 days ago 434th CaedenHarper 🇨🇦 833 75 39ms 25 days ago 435th jkelly467 833 102 2ms 23 days ago 436th DialFrost 🇸🇬 832 59 96ms 23 days ago 437th GolfingSuccess 🇬🇷 831 84 39ms 3 Nov 2025 438th albanian-laundromat 831 85 85ms 8 days ago 439th Shanethegamer 🇺🇸 828 54 39ms 3 Nov 2025 439th blaztoma 🇱🇹 828 54 35ms 25 days ago 441st edsrzf 🇳🇿 828 61 6ms 24 days ago 441st DialFrost 🇸🇬 828 61 5ms 23 days ago 443rd Natanaelel 🇸🇪 828 81 120ms 27 Nov 2025 444th bitsandbeyond 🇳🇱 828 89 363ms 2 Nov 2025 445th kg583 🇺🇸 828 92 9ms 30 Oct 2025 446th blaztoma 🇱🇹 827 96 124ms 25 days ago 447th MeWhenI 🇻🇦 826 100 252ms 23 Nov 2025 448th sean-niemann 🇺🇸 825 66 215ms 23 days ago 449th albanian-laundromat 823 61 11ms 23 Nov 2025 449th hiichbindermax 823 61 11ms 22 days ago 449th Emutis 🇱🇹 823 61 12ms 18 days ago 452nd rucin93 🇵🇱 822 76 41ms 30 Oct 2025 453rd emgordon154 821 54 128ms 4 days ago 454th CaedenHarper 🇨🇦 821 56 806ms 25 days ago 455th albanian-laundromat 821 60 374ms 23 Nov 2025 456th voytxt 🇨🇿 819 54 9ms 22 Nov 2025 456th KatieLG 🇬🇧 819 54 9ms 24 days ago 456th KrausRaus 🇺🇸 819 54 9ms 22 days ago 459th AlephSquirrel 819 93 9ms 30 Oct 2025 460th snoozingnewt 🇨🇦 819 97 120ms 24 days ago 461st Shanethegamer 🇺🇸 818 52 3ms 4 Nov 2025 461st fuzzylojik-golf 🇺🇸 818 52 3ms 22 days ago 463rd dokutan 818 78 385ms 24 Nov 2025 464th edsrzf 🇳🇿 818 82 158ms 6 days ago 465th snoozingnewt 🇨🇦 818 94 26ms 24 days ago 466th blaztoma 🇱🇹 817 101 259ms 24 days ago 467th KasperKivimaeki 🇫🇮 817 104 2ms 2 Nov 2025 468th MeWhenI 🇻🇦 813 55 35ms 21 Nov 2025 469th MeWhenI 🇻🇦 813 59 223ms 23 Nov 2025 470th CaedenHarper 🇨🇦 813 67 165ms 25 days ago 471st dokutan 813 70 3ms 26 days ago 472nd Shanethegamer 🇺🇸 812 83 12ms 2 Nov 2025 472nd dokutan 812 83 11ms 24 days ago 474th AlephSquirrel 812 90 65ms 24 days ago 475th inventshah 810 62 10ms 17 days ago 476th MeWhenI 🇻🇦 810 88 10ms 21 days ago 477th snoozingnewt 🇨🇦 810 94 8ms 24 days ago 477th blaztoma 🇱🇹 810 94 8ms 24 days ago 477th BREMAUCY 🇫🇷 810 94 9ms 19 days ago 480th Shanethegamer 🇺🇸 809 60 1ms 3 Nov 2025 First Prev 401–480 of 1,126 Next Last