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 161st GolfingSuccess 🇬🇷 912 54 535ms 31 Oct 2025 161st sean-niemann 🇺🇸 912 54 595ms 24 days ago 161st CornerMercury 🇬🇧 912 54 428ms 6 days ago 164th bitsandbeyond 🇳🇱 911 70 397ms 1 Nov 2025 164th namelessiw 911 70 407ms 2 Nov 2025 166th stefangimmillaro 911 75 41ms 31 Oct 2025 167th Mukundan314 910 67 2ms 23 Nov 2025 167th luuumine 🇫🇷 910 67 2ms 22 days ago 167th Alex-x90 🇺🇸 910 67 2ms 21 days ago 170th sean-niemann 🇺🇸 910 81 388ms 31 Oct 2025 170th KasperKivimaeki 🇫🇮 910 81 367ms 31 Oct 2025 170th ovs-code 🇩🇪 910 81 387ms 31 Oct 2025 170th rucin93 🇵🇱 910 81 383ms 31 Oct 2025 170th edsrzf 🇳🇿 910 81 357ms 24 days ago 170th DialFrost 🇸🇬 910 81 363ms 23 days ago 170th JayXon 🇺🇸 910 81 467ms 4 days ago 177th IanUtley 909 70 10ms 7 Nov 2025 177th annaproxy 909 70 10ms 23 days ago 179th kg583 🇺🇸 908 65 5ms 30 Oct 2025 179th edsrzf 🇳🇿 908 65 4ms 30 Oct 2025 181st GolfingSuccess 🇬🇷 908 85 60ms 30 Oct 2025 181st rucin93 🇵🇱 908 85 61ms 30 Oct 2025 181st KasperKivimaeki 🇫🇮 908 85 61ms 31 Oct 2025 181st bitsandbeyond 🇳🇱 908 85 60ms 1 Nov 2025 181st ovs-code 🇩🇪 908 85 53ms 3 Nov 2025 181st pardouin 🇫🇷 908 85 56ms 26 days ago 181st m-tkach 🇺🇦 908 85 52ms 24 days ago 181st DialFrost 🇸🇬 908 85 62ms 23 days ago 181st AdrienHache 🇫🇷 908 85 71ms 23 days ago 181st xsot 🇸🇬 908 85 59ms 23 days ago 191st pardouin 🇫🇷 907 91 251ms 26 days ago 192nd Natanaelel 🇸🇪 906 32 39ms 9 hours ago 193rd sean-niemann 🇺🇸 906 69 40ms 24 days ago 194th ovs-code 🇩🇪 906 74 120ms 27 days ago 195th edsrzf 🇳🇿 905 70 4ms 31 Oct 2025 195th MeWhenI 🇻🇦 905 70 4ms 24 Nov 2025 197th luuumine 🇫🇷 904 72 117ms 22 days ago 197th emgordon154 904 72 132ms 4 days ago 199th emgordon154 903 67 5ms 23 Nov 2025 200th targrik 902 56 5ms 30 Oct 2025 201st bitsandbeyond 🇳🇱 902 66 108ms 2 Nov 2025 201st stefangimmillaro 902 66 124ms 4 Nov 2025 203rd GrayJoKing 🇦🇺 902 79 9ms 20 days ago 204th emgordon154 902 88 103ms 21 days ago 205th DialFrost 🇸🇬 901 71 18ms 3 days ago 206th CaedenHarper 🇨🇦 901 78 416ms 26 days ago 206th m-tkach 🇺🇦 901 78 657ms 24 days ago 208th jkelly467 900 68 3,209ms 24 days ago 209th MeWhenI 🇻🇦 899 53 3ms 23 Nov 2025 210th kg583 🇺🇸 898 75 10ms 30 Oct 2025 211th edsrzf 🇳🇿 898 78 3ms 24 days ago 212th luuumine 🇫🇷 898 86 53ms 14 days ago 213th saito-ta 🇯🇵 897 51 583ms 31 Oct 2025 213th MeWhenI 🇻🇦 897 51 542ms 26 days ago 215th AlephSquirrel 897 56 11ms 30 Oct 2025 215th hallvabo 🇳🇴 897 56 11ms 30 Oct 2025 215th bizy-coder 897 56 13ms 26 Nov 2025 215th ndren 897 56 13ms 26 days ago 215th zacjl 897 56 12ms 25 days ago 215th klixel 🇨🇦 897 56 11ms 18 days ago 221st edsrzf 🇳🇿 897 59 2ms 31 Oct 2025 221st CaedenHarper 🇨🇦 897 59 2ms 25 days ago 221st GrayJoKing 🇦🇺 897 59 2ms 21 days ago 224th CaedenHarper 🇨🇦 897 68 2ms 26 days ago 224th m-tkach 🇺🇦 897 68 2ms 24 days ago 226th GolfingSuccess 🇬🇷 897 92 275ms 30 Oct 2025 226th stefangimmillaro 897 92 264ms 31 Oct 2025 226th edsrzf 🇳🇿 897 92 264ms 31 Oct 2025 226th KasperKivimaeki 🇫🇮 897 92 280ms 31 Oct 2025 230th kg583 🇺🇸 896 55 480ms 30 Oct 2025 230th bitsandbeyond 🇳🇱 896 55 512ms 1 Nov 2025 230th Shanethegamer 🇺🇸 896 55 525ms 3 Nov 2025 230th m-tkach 🇺🇦 896 55 475ms 24 Nov 2025 230th ovs-code 🇩🇪 896 55 415ms 27 days ago 230th emgordon154 896 55 502ms 5 days ago 236th kg583 🇺🇸 895 78 50ms 30 Oct 2025 236th edsrzf 🇳🇿 895 78 41ms 31 Oct 2025 238th edsrzf 🇳🇿 895 79 78ms 24 days ago 239th m-tkach 🇺🇦 895 95 2ms 24 days ago 240th ovs-code 🇩🇪 894 50 37ms 26 days ago First Prev 161–240 of 1,126 Next Last