The Calendar hole will go live in approximately 10 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 160th edsrzf 🇳🇿 911 66 1,434ms 19 days ago 162nd bitsandbeyond 🇳🇱 911 70 397ms 1 Nov 2025 162nd namelessiw 911 70 417ms 2 Nov 2025 164th stefangimmillaro 911 75 41ms 31 Oct 2025 165th Mukundan314 910 67 2ms 27 days ago 165th luuumine 🇫🇷 910 67 2ms 17 days ago 165th Alex-x90 🇺🇸 910 67 2ms 17 days ago 168th IanUtley 909 70 10ms 7 Nov 2025 168th annaproxy 909 70 10ms 18 days ago 170th kg583 🇺🇸 908 65 5ms 30 Oct 2025 170th edsrzf 🇳🇿 908 65 4ms 30 Oct 2025 172nd sean-niemann 🇺🇸 908 81 388ms 31 Oct 2025 172nd KasperKivimaeki 🇫🇮 908 81 367ms 31 Oct 2025 172nd ovs-code 🇩🇪 908 81 387ms 31 Oct 2025 172nd rucin93 🇵🇱 908 81 383ms 31 Oct 2025 172nd edsrzf 🇳🇿 908 81 357ms 19 days ago 172nd DialFrost 🇸🇬 908 81 363ms 19 days ago 178th GolfingSuccess 🇬🇷 907 85 76ms 30 Oct 2025 178th rucin93 🇵🇱 907 85 69ms 30 Oct 2025 178th KasperKivimaeki 🇫🇮 907 85 80ms 31 Oct 2025 178th bitsandbeyond 🇳🇱 907 85 60ms 1 Nov 2025 178th ovs-code 🇩🇪 907 85 71ms 3 Nov 2025 178th pardouin 🇫🇷 907 85 78ms 21 days ago 178th m-tkach 🇺🇦 907 85 76ms 19 days ago 178th DialFrost 🇸🇬 907 85 62ms 19 days ago 178th AdrienHache 🇫🇷 907 85 71ms 18 days ago 178th xsot 🇸🇬 907 85 64ms 18 days ago 188th sean-niemann 🇺🇸 906 69 40ms 19 days ago 189th ovs-code 🇩🇪 906 74 120ms 22 days ago 190th pardouin 🇫🇷 906 91 251ms 21 days ago 191st edsrzf 🇳🇿 905 70 4ms 31 Oct 2025 191st MeWhenI 🇻🇦 905 70 4ms 27 days ago 193rd luuumine 🇫🇷 904 72 117ms 17 days ago 193rd emgordon154 904 72 140ms 5 hours ago 195th emgordon154 903 67 5ms 27 days ago 196th targrik 902 56 8ms 30 Oct 2025 197th GrayJoKing 🇦🇺 902 79 9ms 15 days ago 198th emgordon154 902 88 103ms 16 days ago 199th CaedenHarper 🇨🇦 901 78 416ms 22 days ago 199th m-tkach 🇺🇦 901 78 657ms 19 days ago 201st bitsandbeyond 🇳🇱 900 66 108ms 2 Nov 2025 201st stefangimmillaro 900 66 124ms 4 Nov 2025 203rd MeWhenI 🇻🇦 899 53 3ms 23 Nov 2025 204th jkelly467 899 68 3,920ms 19 days ago 205th sean-niemann 🇺🇸 899 74 21ms 7 hours ago 206th sean-niemann 🇺🇸 898 67 1,225ms 19 days ago 207th kg583 🇺🇸 898 75 10ms 30 Oct 2025 208th edsrzf 🇳🇿 898 78 3ms 20 days ago 209th saito-ta 🇯🇵 897 51 583ms 31 Oct 2025 209th MeWhenI 🇻🇦 897 51 542ms 21 days ago 211th CaedenHarper 🇨🇦 897 68 2ms 22 days ago 211th m-tkach 🇺🇦 897 68 2ms 19 days ago 213th luuumine 🇫🇷 897 86 71ms 9 days ago 214th AlephSquirrel 896 56 11ms 30 Oct 2025 214th hallvabo 🇳🇴 896 56 11ms 30 Oct 2025 214th bizy-coder 896 56 13ms 24 days ago 214th ndren 896 56 13ms 21 days ago 214th zacjl 896 56 12ms 20 days ago 214th klixel 🇨🇦 896 56 11ms 13 days ago 220th edsrzf 🇳🇿 896 59 2ms 31 Oct 2025 220th CaedenHarper 🇨🇦 896 59 2ms 21 days ago 220th GrayJoKing 🇦🇺 896 59 2ms 17 days ago 223rd GolfingSuccess 🇬🇷 896 92 275ms 30 Oct 2025 223rd stefangimmillaro 896 92 264ms 31 Oct 2025 223rd edsrzf 🇳🇿 896 92 264ms 31 Oct 2025 223rd KasperKivimaeki 🇫🇮 896 92 280ms 31 Oct 2025 227th kg583 🇺🇸 895 55 480ms 30 Oct 2025 227th bitsandbeyond 🇳🇱 895 55 512ms 1 Nov 2025 227th Shanethegamer 🇺🇸 895 55 525ms 3 Nov 2025 227th m-tkach 🇺🇦 895 55 475ms 26 days ago 227th ovs-code 🇩🇪 895 55 415ms 22 days ago 227th emgordon154 895 55 502ms 23 hours ago 233rd kg583 🇺🇸 895 78 58ms 30 Oct 2025 233rd edsrzf 🇳🇿 895 78 41ms 31 Oct 2025 235th edsrzf 🇳🇿 895 79 78ms 19 days ago 236th m-tkach 🇺🇦 895 95 2ms 19 days ago 237th ovs-code 🇩🇪 894 50 55ms 22 days ago 237th sean-niemann 🇺🇸 894 50 41ms 19 days ago 239th sean-niemann 🇺🇸 892 86 26ms 19 days ago 240th sean-niemann 🇺🇸 891 89 36ms 19 days ago First Prev 161–240 of 1,104 Next Last