The Calendar hole will go live in approximately 9 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 159th CornerMercury 🇬🇧 912 54 428ms 2 days ago 162nd pardouin 🇫🇷 912 67 4,035ms 1 Nov 2025 162nd bitsandbeyond 🇳🇱 912 67 4,371ms 2 Nov 2025 164th bitsandbeyond 🇳🇱 911 70 397ms 1 Nov 2025 164th namelessiw 911 70 417ms 2 Nov 2025 166th stefangimmillaro 911 75 41ms 31 Oct 2025 167th Mukundan314 910 67 2ms 23 Nov 2025 167th luuumine 🇫🇷 910 67 2ms 18 days ago 167th Alex-x90 🇺🇸 910 67 2ms 18 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 21 days ago 170th DialFrost 🇸🇬 910 81 363ms 20 days ago 170th JayXon 🇺🇸 910 81 467ms 28 hours ago 177th IanUtley 909 70 10ms 7 Nov 2025 177th annaproxy 909 70 10ms 20 days ago 179th kg583 🇺🇸 908 65 5ms 30 Oct 2025 179th edsrzf 🇳🇿 908 65 4ms 30 Oct 2025 181st GolfingSuccess 🇬🇷 908 85 76ms 30 Oct 2025 181st rucin93 🇵🇱 908 85 69ms 30 Oct 2025 181st KasperKivimaeki 🇫🇮 908 85 80ms 31 Oct 2025 181st bitsandbeyond 🇳🇱 908 85 60ms 1 Nov 2025 181st ovs-code 🇩🇪 908 85 71ms 3 Nov 2025 181st pardouin 🇫🇷 908 85 78ms 23 days ago 181st m-tkach 🇺🇦 908 85 76ms 20 days ago 181st DialFrost 🇸🇬 908 85 62ms 20 days ago 181st AdrienHache 🇫🇷 908 85 71ms 19 days ago 181st xsot 🇸🇬 908 85 64ms 19 days ago 191st sean-niemann 🇺🇸 906 69 40ms 20 days ago 192nd ovs-code 🇩🇪 906 74 120ms 23 days ago 193rd pardouin 🇫🇷 906 91 251ms 22 days ago 194th edsrzf 🇳🇿 905 70 4ms 31 Oct 2025 194th MeWhenI 🇻🇦 905 70 4ms 24 Nov 2025 196th luuumine 🇫🇷 904 72 117ms 18 days ago 196th emgordon154 904 72 140ms 35 hours ago 198th emgordon154 903 67 5ms 23 Nov 2025 199th targrik 902 56 8ms 30 Oct 2025 200th bitsandbeyond 🇳🇱 902 66 108ms 2 Nov 2025 200th stefangimmillaro 902 66 124ms 4 Nov 2025 202nd GrayJoKing 🇦🇺 902 79 9ms 17 days ago 203rd emgordon154 902 88 103ms 18 days ago 204th DialFrost 🇸🇬 901 71 22ms 7 hours ago 205th CaedenHarper 🇨🇦 901 78 416ms 23 days ago 205th m-tkach 🇺🇦 901 78 657ms 20 days ago 207th MeWhenI 🇻🇦 899 53 3ms 23 Nov 2025 208th jkelly467 899 68 3,920ms 20 days ago 209th kg583 🇺🇸 898 75 10ms 30 Oct 2025 210th edsrzf 🇳🇿 898 78 3ms 21 days ago 211th luuumine 🇫🇷 898 86 71ms 11 days ago 212th saito-ta 🇯🇵 897 51 583ms 31 Oct 2025 212th MeWhenI 🇻🇦 897 51 542ms 23 days ago 214th edsrzf 🇳🇿 897 59 2ms 31 Oct 2025 214th CaedenHarper 🇨🇦 897 59 2ms 22 days ago 214th GrayJoKing 🇦🇺 897 59 2ms 18 days ago 217th CaedenHarper 🇨🇦 897 68 2ms 23 days ago 217th m-tkach 🇺🇦 897 68 2ms 20 days ago 219th AlephSquirrel 896 56 11ms 30 Oct 2025 219th hallvabo 🇳🇴 896 56 11ms 30 Oct 2025 219th bizy-coder 896 56 13ms 25 days ago 219th ndren 896 56 13ms 22 days ago 219th zacjl 896 56 12ms 21 days ago 219th klixel 🇨🇦 896 56 11ms 14 days ago 225th GolfingSuccess 🇬🇷 896 92 275ms 30 Oct 2025 225th stefangimmillaro 896 92 264ms 31 Oct 2025 225th edsrzf 🇳🇿 896 92 264ms 31 Oct 2025 225th KasperKivimaeki 🇫🇮 896 92 280ms 31 Oct 2025 229th kg583 🇺🇸 895 55 480ms 30 Oct 2025 229th bitsandbeyond 🇳🇱 895 55 512ms 1 Nov 2025 229th Shanethegamer 🇺🇸 895 55 525ms 3 Nov 2025 229th m-tkach 🇺🇦 895 55 475ms 24 Nov 2025 229th ovs-code 🇩🇪 895 55 415ms 23 days ago 229th emgordon154 895 55 502ms 2 days ago 235th kg583 🇺🇸 895 78 58ms 30 Oct 2025 235th edsrzf 🇳🇿 895 78 41ms 31 Oct 2025 237th edsrzf 🇳🇿 895 79 78ms 21 days ago 238th m-tkach 🇺🇦 895 95 2ms 20 days ago 239th ovs-code 🇩🇪 894 50 55ms 23 days ago 239th sean-niemann 🇺🇸 894 50 41ms 20 days ago First Prev 161–240 of 1,114 Next Last